CN114147882A - Injection mold part and method for manufacturing injection mold part - Google Patents
Injection mold part and method for manufacturing injection mold part Download PDFInfo
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- CN114147882A CN114147882A CN202111285460.XA CN202111285460A CN114147882A CN 114147882 A CN114147882 A CN 114147882A CN 202111285460 A CN202111285460 A CN 202111285460A CN 114147882 A CN114147882 A CN 114147882A
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- Prior art keywords
- injection mold
- water pipe
- mold part
- rust
- water
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- 238000002347 injection Methods 0.000 title claims abstract description 218
- 239000007924 injection Substances 0.000 title claims abstract description 218
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 166
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000012545 processing Methods 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000013049 sediment Substances 0.000 claims abstract 5
- 230000002265 prevention Effects 0.000 claims description 80
- 238000000576 coating method Methods 0.000 claims description 28
- 238000009792 diffusion process Methods 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 17
- 238000001746 injection moulding Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000009713 electroplating Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 27
- 239000000243 solution Substances 0.000 abstract 1
- 238000007747 plating Methods 0.000 description 28
- 239000011248 coating agent Substances 0.000 description 26
- 230000003746 surface roughness Effects 0.000 description 13
- 239000007921 spray Substances 0.000 description 12
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007751 thermal spraying Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
注塑模具部件及注塑模具部件的制造方法，是解决抑制水管内部生锈，同时抑制产生水分中包含的杂质成分等沉积物的问题。采用的方案是：在注塑模具部件10A的内部形成水管13，沿着水管13的延伸轴线将注塑模具部件一分为二。然后对一分为二的水管13的内表面进行防锈和防沉积物粘附加工，通过金属粘合将被一分为二的水管13的内表面和经过了防锈和防沉积物粘附加工的被一分为二的注塑模具部件成为一体。
An injection mold part and a method for producing the injection mold part solve the problem of suppressing rusting inside a water pipe and suppressing the generation of deposits such as impurities contained in moisture. The adopted solution is: forming a water pipe 13 inside the injection mold part 10A, and dividing the injection mold part into two parts along the extension axis of the water pipe 13 . Then, the inner surface of the water pipe 13 divided into two is subjected to anti-rust and anti-sediment adhesion processing, and the inner surface of the divided water pipe 13 is subjected to anti-rust and anti-sediment adhesion by metal bonding. The machined part of the injection mold that is divided in two becomes one.
Description
[ technical field ] A method for producing a semiconductor device
The invention provides an injection mold part and a method for manufacturing the injection mold part.
[ background of the invention ]
There is known a mold member having a temperature adjusting device including a fixed-side insert, a movable-side insert that can be attached to the front and rear of the fixed-side insert, a cooling pipe that can be attached to the movable-side insert in the same direction to the front and rear of the movable-side insert and adjusts the temperature of the movable-side insert, and the like (see, for example, patent document 1).
In general, in an injection mold member, in order to accelerate cooling of a molded product, a water pipe is provided in the injection mold member adjacent to a heat accumulation portion of the molded product, and a molding cycle is advanced.
Therefore, the water pipe of the injection mold part is generally designed to be cooled at a place where cooling is required by providing straight holes from a plurality of directions by a drill or the like.
In addition, water is often used for cooling, and a cooler is used to circulate the water in the injection mold member.
[ Prior art documents ]
[ patent document ]
[ patent document 1 ] laid-open patent No. 2005-219445
[ summary of the invention ]
[ problem to be solved by the invention ]
After the production of the molded article is completed, the cooling water is discharged from the injection mold part, and the water in the water pipe is removed.
However, there is a problem in that water in the water pipe cannot be completely removed, and a part of water remains to cause rusting.
In addition, in the case where rust is severe, a part or the whole of the water pipe may be clogged, and the injection mold member may not be usable after that.
In addition, the impurity components contained in the water are also deposited in the water pipe, and cause clogging of the water pipe together with rust.
On the other hand, when slight corrosion or impurity deposition occurs, the special cleaning equipment can be used for cleaning the deposits such as corrosion or impurity.
To solve the above problems, the present invention provides an injection mold member and a method of manufacturing the injection mold member. The generation of deposits such as impurity components contained in water is suppressed while suppressing the generation of rust in the interior of the water pipe.
[ MEANS FOR solving PROBLEMS ] A liquid crystal display device
The water pipe arranged inside the injection mould part is divided into two parts along the extension axis.
Therefore, rust prevention and deposit adhesion prevention processing of the plating treatment, the coating treatment, and the thermal spray coating treatment can be performed accurately and easily.
In addition, the two-piece material is integrated by metal bonding.
Therefore, it is possible to produce an injection mold part in which a water pipe is formed to be accurately subjected to rust prevention and deposit adhesion prevention processing of a plating treatment, a coating treatment and a thermal spraying film treatment.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 2; in one or more embodiments of the invention, an injection mold component is provided, characterized in that the water pipe is formed by drilling.
The water pipe is formed by, for example, drilling.
Therefore, the water pipe can be formed inside the injection mold part by a simple process.
Further, the inner surface of the water pipe formed by drilling is rough, so that rust is easily generated when the water pipe is used as it is, and generation of deposits such as impurity components contained in the water is promoted.
However, in the injection mold member of the present embodiment, the water pipe formed inside is subjected to the rust prevention and deposit adhesion prevention processing by the plating processing, the coating processing, and the thermal spraying processing.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 3; in one or more embodiments of the present invention, an injection mold component is provided, wherein the water pipe is formed by beveling.
The water pipe is formed by, for example, beveling.
Therefore, the water pipe can be formed inside the injection mold part by a simple process.
In addition, the inner surface of the water pipe formed by beveling can be suppressed in surface roughness as compared with that formed by drilling, but there is a possibility that deposits such as corrosion and impurity components contained in water may be generated.
However, in the injection mold member of the present embodiment, the water pipe formed inside is subjected to the rust prevention and deposit adhesion prevention processing by the plating processing, the coating processing, and the thermal spraying processing.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 4; one or more embodiments of the invention provide an injection mold component characterized in that the rust and deposit adhesion preventing work is a plating treatment.
The rust prevention and deposit adhesion prevention work is carried out by, for example, plating treatment.
That is, the inner surface of the water pipe formed by drilling, beveling, or the like has surface roughness, and the surface roughness is subjected to plating treatment.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 5; one or more embodiments of the invention provide an injection mold component, characterized in that the rust-proof and deposit adhesion-proof treatment is a coating treatment.
The rust prevention and deposit adhesion prevention processing is performed by, for example, a coating treatment.
That is, the inner surface of the water pipe formed by drilling, beveling, or the like has surface roughness, but the surface roughness is subjected to coating treatment.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 6; one or more embodiments of the invention provide an injection mold part characterized in that the rust and deposit adhesion preventing process is a thermal spray coating process.
The rust prevention and deposit adhesion prevention processing is carried out by, for example, a thermal spray coating film treatment.
That is, the inner surface of the water pipe formed by drilling, beveling, or the like has surface roughness, but the surface roughness is subjected to thermal spray coating treatment.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
Form 7: in one or more embodiments of the invention, an injection mold part is provided, characterized in that the metal bonding is carried out by diffusion bonding.
The metal bond is attached by, for example, diffusion bonding.
The diffusion bonding method is characterized in that 1 metal bonding treatment can be performed in a short time, and the bonding strength is close to 100%.
It is therefore a good and suitable way for metal bonding of injection mould parts that require strength.
Form 8; in one or more embodiments of the present invention, there is provided a method for manufacturing an injection mold member, characterized by comprising a water pipe forming process for forming a water pipe inside the injection mold member, a dividing process for dividing the injection mold member into two along an extension axis of the water pipe, a processing process for applying rust prevention and deposit adhesion prevention work to an inner surface of the divided water pipe, and a joining process for integrating the inner surface of the divided water pipe and the divided injection mold member applied with the rust prevention and deposit adhesion prevention work into one by metal bonding in the processing process.
In the water pipe forming process, a water pipe is formed through drilling and beveling.
In the dividing process, the water tube formed in the water tube forming process is divided into two along the extending axis of the water tube.
In the processing technology, the inner surface of the water pipe divided into two parts is subjected to the processes of plating treatment, coating treatment and thermal spraying film treatment for rust prevention and deposit adhesion prevention.
In the joining process, metal bonding is performed by, for example, a diffusion joining method.
Therefore, according to the manufacturing method including the above-described process, it is possible to produce an injection mold component in which a water pipe is formed, the water pipe of which is accurately subjected to rust prevention and deposit adhesion prevention processing of a plating treatment, a coating treatment, and a thermal spray film treatment.
Thus, an injection mold part can be obtained which suppresses generation of deposits such as impurity components contained in water while suppressing generation of rust inside the water pipe.
[ Effect of the invention ]
According to embodiment 1 or more of the present invention, there is an effect that rust formation inside the water pipe can be suppressed, and generation of deposits such as impurity components contained in the water can be suppressed.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a modular injection molding machine using an injection mold part according to an embodiment of the present invention.
Fig. 2 is a perspective view of an injection mold component according to embodiment 1 of the present invention.
Fig. 3 is a flowchart of a method for manufacturing an injection mold part according to embodiment 1 of the present invention.
Fig. 4 is a sectional view of a water pipe of an injection mold part according to embodiment 1 of the present invention.
Fig. 5 is a perspective view of an injection mold component according to embodiment 2 of the present invention.
Fig. 6 is a flowchart of a method for manufacturing an injection mold part according to embodiment 2 of the present invention.
Fig. 7 is a perspective view of an injection mold component according to embodiment 3 of the present invention.
Fig. 8 is a perspective view of an injection mold component according to embodiment 3 of the present invention.
Fig. 9 is a flowchart of a method of manufacturing an injection mold part according to embodiment 3 of the present invention.
[ detailed description of the invention ]
< embodiment >
Hereinafter, embodiments of the present invention will be described with reference to fig. 1 to 9.
< injection Molding >
Injection Molding (Injection Molding) is a method in which a material melted by heating is injected into a mold and solidified by cooling to obtain a molded article.
Injection molding is suitable for mass production of products having complicated shapes.
The injection molding process is roughly divided into 6 processes: the method comprises a mold closing process, an injection process, a pressure maintaining process, a cooling process, a mold opening process and a product taking-out process.
< construction of injection Molding machine >
In general, an injection molding machine mainly includes a mold clamping unit 20 and an injection unit 30.
As shown in fig. 1, the injection molding machine 1 of the present embodiment includes a mold 10, a mold clamping unit 20, and an injection unit 30.
Further, the injection unit 30 includes a hopper 31, a cylinder 32, and a motor 33.
The mold clamping unit 20 performs opening/closing and ejection (ejector) of the mold 10, and includes a toggle type and a direct pressure type in which the mold is directly opened/closed by a hydraulic cylinder.
The injection unit 30 heats and melts the resin and injects the resin into the mold.
Then, a screw, not shown, in the cylinder 32 is rotated, the resin fed from the hopper 31 is stored in the front of the screw and weighed, and the post-stroke injection corresponding to the required resin amount is stored.
The moving speed of the screw (injection speed) is controlled while the resin flows in the mold 10, and after the resin is filled, control is performed by pressure (holding pressure).
When the speed control is switched to the pressure control, the switching is performed when a predetermined screw position is reached or when a predetermined injection pressure is reached.
The Mold (Mold)10 is made of metal into which a resin is injected in order to form a material resin into a predetermined shape, and is composed of a movable injection Mold member 10A and a fixed injection Mold member 10B.
The movable injection mold member 10A is moved by the mold clamping unit 20.
A water pipe, not shown, is formed inside the movable injection mold part 10A, and water is circulated through the water pipe by a cooler to cool the heat accumulating portion of the molded article, thereby functioning to accelerate the molding cycle.
The molten material enters the mold 10 from a gate and is filled into a cavity, not shown, through a runner gate, not shown.
Thereafter, through the cooling process, the mold 10 is opened, and an ejector plate, not shown, of the mold 10 is pushed by an ejector rod, not shown, of the molding machine, thereby ejecting the molded article.
< embodiment 1 >
The movable injection mold member 10A according to embodiment 1 will be described with reference to fig. 2 to 4.
< construction of Movable injection mold Member 10A >
As shown in fig. 2, the movable injection mold part 10A according to the present embodiment includes, for example, a1 st injection mold part 11 and a2 nd injection mold part 12 which are divided into two along an extension axis of a circular water pipe formed by drilling.
Rust prevention and deposit adhesion prevention works 16 subjected to a plating process, a coating process, and a thermal spraying process are applied to the inner surfaces of the semicircular water tubes 13 formed on the 1 st and 2 nd injection mold parts 11 and 12.
After the rust-proofing and deposit adhesion-preventing work 16, the 1 st injection-mold part 11 and the 2 nd injection-mold part 12 are metal-bonded by, for example, a diffusion bonding method.
In addition, when metal bonding is performed by the diffusion bonding method, since the processing temperature is 600 to 1000 ℃, heat treatment is required after bonding, and thus heat resistance is required for the treatment of rust prevention and deposit adhesion prevention processing 16.
Therefore, in the case of plating treatment, hard chrome plating is preferable, and when the temperature exceeds 700 ℃, rust prevention, mold release effects can be exerted despite the change in the composition.
Further, in the case of the coating treatment, a TiAlN or AlCrN film containing aluminum and having a high heat-resistant temperature is preferable.
Also, in the case of the thermal spray film treatment, there are many films having heat resistance and mold release properties, and the selectable range is wide.
< method for producing Movable injection mold Member 10A >
A method of manufacturing the movable injection mold member 10A relating to the present embodiment will be described with reference to fig. 3 to 6.
First, the movable injection mold member 10A is manufactured without the water pipe 13 (step S100).
The movable injection mold member 10A may be manufactured by a conventional manufacturing method.
The movable injection mold member 10A produced in step S100 is subjected to a processing process of forming the water pipe 13 therein by drilling or the like (step S200).
The movable injection mold member 10A produced in step S200 is divided into two along the extension axis of the water pipe, and the 1 st injection mold member 11 and the 2 nd injection mold member 12 are produced (step S300).
The inner surfaces of the semicircular water tubes 13 formed in the 1 st and 2 nd injection mold parts 11 and 12 manufactured in step S300 are subjected to rust prevention and deposit adhesion prevention processing 16 by plating treatment, coating treatment, thermal spray film treatment, or the like (step S400).
In step S400, with respect to the 1 st and 2 nd injection mold parts 11 and 12 subjected to rust prevention and deposit adhesion prevention processing 16, rust preventive oil, a mark (oil pen), and the like are removed by using a metal cleaner, while cleaning is performed using a blower for preventing dust and the like from adhering to the connection face 15 (step S500).
In step S500, for example, the 1 st and 2 nd injection mold parts 11 and 12 subjected to degreasing and cleaning are placed on a base on which the diffusion bonding apparatus is provided.
At this time, the 1 st injection mold part 11 is placed on the 2 nd injection mold part 12 by the shift position.
In addition, the positions of the dowel holes 14 align with the direction.
Then, the 1 st injection mold part 11 is slid to discharge air on the contact surface of the 1 st injection mold part 11 and the 2 nd injection mold part 12, and when the alignment is substantially performed, whether or not the positions of the dowel holes 14 are aligned is confirmed and fine adjustment is performed, and when the alignment is performed, the pins are inserted into the dowel holes 14 from the tip side to perform the positioning (step S600).
When the positioning is completed in step S600, the previously inserted 1 pin is pulled out and replaced with a short pin, and this operation is performed for all the pins.
Further, after it is confirmed that the newly inserted short pin is hidden in the dowel hole 14, the deviation of the outer shape is adjusted.
The newly inserted pin is not pulled out, but sintered at the time of the metal bonding process (step S700).
Next, the movable injection mold member 10A is attached to the diffusion bonding apparatus (step S800).
Then, the 1 st injection mold part 11 and the 2 nd injection mold part 12 are metal-bonded by the diffusion bonding means to manufacture the movable injection mold part 10A (step S900).
< action and Effect >
The movable injection mold part 10A according to the present embodiment has a water pipe 13 inside, is divided into two along the extension axis of the water pipe 13, applies rust prevention and deposit adhesion prevention work 16 on the inner surface of the water pipe 13, and integrates the divided materials (the 1 st injection mold part 11 and the 2 nd injection mold part 12) by metal adhesion.
That is, the water pipe 13 inside the movable injection mold member 10A is divided into two along the extension axis thereof.
Therefore, the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray coating treatment can be performed accurately and easily.
In addition, the divided materials (the 1 st injection mold member 11 and the 2 nd injection mold member 12) are integrated by metal bonding.
Therefore, it is possible to produce the movable injection mold part 10A in which the water pipe 13 is formed, the water pipe 13 of which is accurately subjected to the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray film treatment.
This makes it possible to obtain an injection mold part that suppresses generation of deposits such as impurity components contained in the water while suppressing generation of rust inside the water pipe 13.
In the movable injection mold member 10A according to the present embodiment, the water pipe 13 is formed by drilling.
Therefore, the water pipe 13 can be formed inside the injection mold part by a simple process.
Further, the surface of the inner surface of the water pipe 13 formed by drilling is rough, so that rust is easily generated as it is, and generation of deposits such as impurity components contained in the water is promoted.
However, in the injection mold part 10A relating to the present form, the water pipe 13 formed inside is subjected to the rust prevention and deposit adhesion prevention processing 16 of the plating treatment, the coating treatment, and the thermal spray coating treatment.
This makes it possible to obtain an injection mold component in which generation of deposits such as impurity components contained in the water is suppressed while generation of rust inside the water pipe 13 is suppressed.
Further, the movable injection mold part 10A relating to the present embodiment is subjected to rust prevention and deposit adhesion prevention processing 16 by plating treatment.
That is, the inner surface of the water pipe 13 formed by the drilling process has a surface roughness, and the surface roughness is subjected to a plating treatment.
Therefore, the injection mold part 10A that suppresses rusting inside the water pipe 13 and generation of deposits such as impurity components contained in the water can be obtained.
Further, the movable injection mold part 10A relating to the present embodiment is subjected to rust prevention and deposit adhesion prevention processing 16 by coating treatment.
That is, the inner surface of the water pipe 13 formed by the drilling process has a surface roughness, and the surface roughness is subjected to a coating treatment.
This makes it possible to obtain an injection mold component in which generation of deposits such as impurity components contained in the water is suppressed while generation of rust inside the water pipe 13 is suppressed.
Further, the movable injection mold part 10A relating to the present embodiment is subjected to rust prevention and deposit adhesion prevention processing 16 by thermal spray film treatment.
That is, the inner surface of the water pipe 13 formed by the drilling process has surface roughness, and the surface roughness is subjected to a thermal spray film treatment.
This makes it possible to obtain an injection mold component in which generation of deposits such as impurity components contained in the water is suppressed while generation of rust inside the water pipe 13 is suppressed.
Further, the metal adhesion of the movable injection mold member 10A according to the present embodiment is performed by a diffusion bonding method.
The diffusion bonding method is characterized in that 1 metal bonding treatment can be performed in a short time, and the bonding strength is close to 100%.
It is therefore a good and suitable way for metal bonding of injection mould parts that require strength.
< embodiment 2 >
The movable injection mold member 10a1 according to embodiment 2 will be described with reference to fig. 5 and 6.
Since the components denoted by the same reference numerals as those in embodiment 1 have the same functions, detailed description thereof will be omitted.
< construction of Movable injection mold Member 10A1 >
As shown in fig. 7, the movable injection mold part 10a1 according to the present embodiment is constituted by a1 st injection mold part 11A and a2 nd injection mold part 12A which are divided into two parts along the extension axis of a rectangular water pipe 13A formed by, for example, beveling.
On the inner surfaces of the コ -shaped water pipes 13A formed in the 1 st and 2 nd injection mold parts 11A and 12A, rust prevention and deposit adhesion prevention works 16 subjected to a plating treatment, a coating treatment, and a thermal spray film treatment are applied.
< method for producing Movable injection mold Member 10A1 >
Referring to fig. 8, a method of manufacturing the movable injection mold member 10a1 according to the present embodiment will be described.
First, the movable injection mold part 10a1 is produced without including the water pipe 13A (step S100).
As for the method of manufacturing the movable injection mold member 10a1, a conventional manufacturing method or the like can be used.
The movable injection mold part 10a1 produced in step S100 is divided into two along the extension axis of the water pipe 13A formed in a rectangular shape to produce the 1 st injection mold part 11A and the 2 nd injection mold part 12A (step S210).
The 1 st and 2 nd injection mold members 11A and 12A manufactured in step S210 are subjected to a machining process of forming the コ -shaped water pipe 13A therein by beveling or the like (step S310).
The inner surfaces of the コ -shaped water tubes 13A formed in the 1 st injection mold part 11A and the 2 nd injection mold part 12A manufactured in step S310 are subjected to rust prevention and deposit adhesion prevention processing 16 by plating treatment, coating treatment, thermal spray film treatment, or the like (step S400).
The 1 st injection mold part 11A and the 2 nd injection mold part 12A subjected to rust prevention and deposit adhesion prevention processing 16 in step S400 are cleaned with a blower in order to prevent dust and the like from adhering to the joining face 15 by removing rust preventive oil, a mark (oil pen), and the like with a metal cleaner (step S500).
In step S500, for example, the 1 st and 2 nd injection mold parts 11A and 12A subjected to degreasing and cleaning are placed on a base on which the diffusion bonding apparatus is provided.
At this time, the 2 nd injection mold part 12A is moved to a position, and the 1 st injection mold part 11A is placed.
In addition, the positions of the dowel holes 14 align with the direction.
Then, the 1 st injection mold part 11A is slid to discharge air on the contact surfaces of the 1 st injection mold part 11A and the 2 nd injection mold part 12A, when substantially aligned, whether or not the positions of the dowel pin holes 14 are aligned and fine adjustment is performed is confirmed, and when aligned, pins are inserted into the dowel pin holes 14 from the tip side to perform positioning (step S600).
When the positioning is completed in step S600, the previously inserted 1 pin is pulled out and replaced with a short pin, and this operation is performed for all the pins.
Further, after it is confirmed that the newly inserted short pin is hidden in the dowel hole 14, the deviation of the outer shape is adjusted.
The newly inserted pin is not pulled out, but sintered at the time of the metal bonding process (step S700).
Next, the movable injection mold member 10a1 is attached to the diffusion bonding apparatus. (step S800).
Then, the 1 st injection mold part 11A and the 2 nd injection mold part 12A are metal-bonded by the diffusion bonding means to manufacture the movable injection mold part 10a1 (step S900).
< action and Effect >
The movable injection mold part 10a1 relating to the present embodiment has a water pipe 13A inside, is divided into two along the extension axis of the water pipe 13A, applies rust prevention and deposit adhesion prevention work 16 on the inner surface of the water pipe 13A, and integrates the divided materials (the 1 st injection mold part 11A and the 2 nd injection mold part 12A) by metal adhesion.
That is, the water pipe 13A inside the movable injection mold part 10a1 is divided into two along its extending axis.
Therefore, the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray coating treatment can be performed accurately and easily.
Further, the divided materials (the 1 st injection mold part 11A and the 2 nd injection mold part 12A) are integrated by metal bonding.
Therefore, it is possible to produce the movable injection mold part 10A in which the water pipe 13A is formed, the water pipe 13A of which is accurately subjected to the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray film treatment.
This makes it possible to obtain an injection mold member in which generation of deposits such as impurity components contained in the water is suppressed while suppressing generation of rust inside the water pipe 13A.
The water pipe 13A of the movable injection mold member 10a1 according to the present embodiment is formed by beveling.
Therefore, the water pipe 13A can be formed inside the injection mold part by a simple process.
Further, the surface of the inner surface of the water pipe 13A formed by beveling is rough, and if it is maintained, rust is likely to be generated, and generation of deposits such as impurity components contained in the water is promoted.
However, in the movable injection mold part 10a1 relating to the present embodiment, the rust prevention and deposit adhesion prevention processing 16 of the plating treatment, the coating treatment, and the thermal spray coating treatment is performed on the water pipe 13A formed inside.
Therefore, an injection mold member can be obtained in which rust formation inside the water pipe 13A is suppressed and generation of deposits such as impurity components contained in the water is suppressed.
< embodiment 3 >
The movable injection mold members 10a2, 10A3 according to the third embodiment will be described with reference to fig. 7 to 9.
Since the components having the same symbols as those in embodiment 1 and embodiment 2 have the same functions, detailed description thereof will be omitted.
< construction of Movable injection mold parts 10A2, 10A3 >
As shown in fig. 9, the movable injection mold members 10a2 and 10A3 according to the present embodiment are constituted by a1 st injection mold member 11B and a2 nd injection mold member 12B. The 1 st injection mold member 11B is divided into two parts along a plane part of the water pipe 13B formed by a semicircular groove formed by beveling, for example, and a plane facing the semicircular groove.
The inside may be constituted by the 1 st injection mold part 11C and the 2 nd injection mold part 12C. The 1 st injection mold member 11C is divided into two parts along a flat surface part of the water pipe 13C formed by, for example, an コ -shaped groove formed by beveling and a flat surface facing the groove.
On the inner surfaces of the semicircular or コ -shaped water pipes 13B, 13C formed in the 1 st and 2 nd injection mold parts 11B, 11C, 12B, 12C, rust prevention and deposit adhesion prevention works 16 subjected to a plating treatment, a coating treatment, and a thermal spray film treatment are applied.
< methods for producing Movable injection mold parts 10A2, 10A3 >
The method of manufacturing the movable injection mold members 10a2, 10A3 according to the present embodiment will be described.
First, injection mold members 10a2, 10A3 not including water pipes 13B, 13C are produced (step S100).
As the method for manufacturing the movable injection mold members 10a2 and 10A3, a conventional manufacturing method or the like can be used.
The movable injection mold parts 10a2, 10A3 produced in step S100 are divided into two parts along a plane facing the water pipes 13B, 13C forming the semicircular or コ -shaped grooves to produce the 1 st injection mold parts 11B, 11C and the 2 nd injection mold parts 12B, 12C (step S220).
The 1 st and 2 nd injection mold members 11B and 11C and 12B and 12C manufactured in step S220 are subjected to a machining process of forming semicircular or コ -shaped water pipes 13B and 13C inside thereof by beveling or the like (step S320).
The inner surfaces of the semicircular or コ -shaped water pipes 13B, 13C formed in the 1 st and 2 nd injection mold parts 11B, 11C, 12B, 12C manufactured in step S320 are subjected to rust prevention and deposit adhesion prevention processing 16 by plating treatment, coating treatment, thermal spraying treatment, or the like (step S400).
The 1 st and 2 nd injection mold parts 11B, 11C, 12B, 12C subjected to rust prevention and deposit adhesion prevention processing 16 in step S400 are cleaned by removing rust preventive oil, marks (oil pens), and the like by using a metal cleaner, and cleaning is performed by using a blower to prevent dust and the like from adhering to the joint surface 15 (step S500).
In step S500, for example, the 1 st and 2 nd injection mold parts 11B, 11C, 12B, 12C subjected to degreasing and cleaning treatment are placed on a base on which the diffusion bonding apparatus is provided.
At this time, the 1 st injection mold members 11B and 11C are placed on the 2 nd injection mold members 12B and 12C at the shifted positions.
In addition, the positions of the dowel holes 14 align with the direction.
Then, the 1 st injection mold parts 11B, 11C are slid to discharge air on the contact surfaces of the 1 st injection mold parts 11B, 11C and the 2 nd injection molds 12B, 12C, when substantially aligned, it is confirmed whether or not the positions of the dowel pin holes 14 are aligned and fine-tuned, and when aligned, pins are inserted into the dowel pin holes 14 from the tip side to be positioned (step S600).
When the positioning is completed in step S600, the previously inserted 1 pin is pulled out and replaced with a short pin, and this operation is performed for all the pins.
Further, after it is confirmed that the newly inserted short pin is hidden in the dowel hole 14, the deviation of the outer shape is adjusted.
The newly inserted pin is not pulled out, but sintered at the time of the metal bonding process (step S700).
Next, the movable injection mold members 10a2, 10A3 are mounted in the diffusion bonding apparatus (step S800).
Then, the 1 st and 2 nd injection mold parts 11B, 11C, 12B, 12C are metal bonded by diffusion bonding means to produce movable injection mold parts 10a2, 10A3 (step S900).
< action and Effect >
The movable injection mold parts 10a2, 10A3 according to the present embodiment have the water pipes 13B, 13C inside, are divided into two along the extension axis of the water pipes 13B, 13C, are subjected to the rust prevention and deposit adhesion prevention processing 16 on the inner surfaces of the water pipes 13B, 13C, and the divided materials (the 1 st injection mold part 11B, 11C and the 2 nd injection mold part 12B, 12C) are bonded integrally by metal.
That is, the water tubes 13B and 13C inside the movable injection mold members 10a2 and 10A3 are divided into two along the extension axis thereof (a plane facing the water tubes 13B and 13C formed into a semicircular or コ -shaped groove).
Therefore, the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray coating treatment can be performed accurately and easily.
In addition, the divided materials (the 1 st injection mold parts 11B, 11C and the 2 nd injection mold parts 12B, 12C) are integrated by metal bonding.
Therefore, it is possible to produce the movable injection mold parts 10a2, 10A3 in which the water pipes 13B, 13C are formed, the water pipes 13B, 13C of which are accurately subjected to the rust prevention and deposit adhesion prevention works 16 of the plating treatment, the coating treatment, and the thermal spray film treatment.
This makes it possible to obtain an injection mold component in which generation of deposits such as impurity components contained in the water is suppressed while suppressing generation of rust inside the water pipes 13B and 13C.
The water pipes 13B and 13C of the movable injection mold members 10a2 and 10A3 according to the present embodiment are formed by a notch process.
Therefore, the water pipes 13B, 13C can be formed inside the injection mold member by a simple process.
The surfaces of the inner surfaces of the water pipes 13B and 13C formed by beveling are rough, and if used as they are, rust easily forms and deposits such as impurity components contained in the water are promoted to be generated.
However, in the movable injection mold parts 10a2, 10A3 relating to the present embodiment, the water pipes 13B, 13C formed inside are subjected to the plating treatment, the coating treatment, and the rust prevention and deposit adhesion prevention treatment 16 of the thermal spray film treatment.
Therefore, it is possible to obtain an injection mold member that suppresses rusting inside the water pipes 13B, 13C and generation of deposits such as impurity components contained in the water.
As described above, the embodiments of the present invention are described in detail with reference to the drawings, but the specific configurations are not limited to the embodiments and include designs and the like that do not depart from the gist of the present invention.
For example, in the above embodiment, the hole is drilled by a drilling process, but the hole may be processed by an end mill or an electric discharge.
Further, in the above-described embodiment, as the manufacturing method of the injection mold member, although the order of making the shape of the mold member, dividing the mold member into two by the processing water holes, rust prevention and deposit adhesion prevention processing, and then bonding is exemplified, in the case of using diffusion bonding, atoms of the contact surface are diffused by heating, pressing, and holding the bonding surface to bond without melting. Therefore, in the bonding, the water pipes may be formed on the plates that secure the parallelism and flatness of the bonding surface and the pressing surface, and the plates may be overlapped with each other, and the parallelism and flatness of the overlapped upper and lower surfaces may be secured, so that the entire contact surfaces may be uniformly pressed and bonded, or the shape of the mold member may be formed after the bonding.
More specifically, since the resin is heated to about 1000 ℃ during bonding, it becomes hard after quenching. Therefore, in order to perform post-processing, the workpiece is softened by annealing, rough-processed in a soft state to produce a rough shape, and then hardened and tempered to increase the hardness required by the customer, and then ground, cut, discharge-processed, and the like are performed to complete the final shape.
[ description of symbols ]
1; injection molding machine
10; die set
10A; movable injection mould part
10A 2; movable injection mould part
10A 3; movable injection mould part
10B; fixed injection mold component
11; 1 st injection mould part
11A; 1 st injection mould part
11B; 1 st injection mould part
11C; 1 st injection mould part
12; 2 nd injection mould part
12A; 2 nd injection mould part
12B; 2 nd injection mould part
12C; 2 nd injection mould part
13; water pipe
13A; water pipe
13B; water pipe
13C; water pipe
14; positioning pin hole
15; bonding surface
20; mold clamping unit
30, of a nitrogen-containing gas; injection unit
31; hopper
32, a first step of removing the first layer; cylinder
33; motor with a stator having a stator core
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021122779A JP7182345B1 (en) | 2021-07-27 | 2021-07-27 | Molded die parts and method for manufacturing molded die parts |
| JP2021-122779 | 2021-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114147882A true CN114147882A (en) | 2022-03-08 |
Family
ID=80458955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111285460.XA Pending CN114147882A (en) | 2021-07-27 | 2021-11-02 | Injection mold part and method for manufacturing injection mold part |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7182345B1 (en) |
| CN (1) | CN114147882A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1072681A (en) * | 1963-11-23 | 1967-06-21 | Thomas Garland | Methods of mould manufacture |
| JPH0393521A (en) * | 1989-09-07 | 1991-04-18 | Sumitomo Heavy Ind Ltd | Method for forming cooling medium passage of mold |
| CA2097193A1 (en) * | 1991-10-01 | 1993-04-02 | Hiroshi Kataoka | Mold for synthetic resin molding |
| JP2000158458A (en) * | 1998-11-30 | 2000-06-13 | Arisawa Mfg Co Ltd | Method for manufacturing fine shape transfer product and method for manufacturing optical member |
| JP2009195914A (en) * | 2008-02-19 | 2009-09-03 | Mazda Motor Corp | Method for producing molding die, and molding die |
| CN109594042A (en) * | 2019-01-29 | 2019-04-09 | 苏州涂冠镀膜科技有限公司 | Anti- adherency hard coat and preparation method thereof for injection mold |
| KR20200068948A (en) * | 2018-12-06 | 2020-06-16 | 광주대학교산학협력단 | Cooling method for injection mold |
| CN111319194A (en) * | 2020-03-06 | 2020-06-23 | 盐城摩因宝新材料有限公司 | Medical injection part mold convenient for demolding and manufacturing process thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827010Y2 (en) * | 1980-04-28 | 1983-06-11 | 池上金型工業株式会社 | Mold cooling hole surface treatment equipment |
| JP4350607B2 (en) * | 2004-07-23 | 2009-10-21 | シャープ株式会社 | Method for manufacturing printed wiring board |
| JP7241453B2 (en) * | 2015-07-22 | 2023-03-17 | 三光合成株式会社 | Gas exhaust structure and injection mold |
-
2021
- 2021-07-27 JP JP2021122779A patent/JP7182345B1/en active Active
- 2021-11-02 CN CN202111285460.XA patent/CN114147882A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1072681A (en) * | 1963-11-23 | 1967-06-21 | Thomas Garland | Methods of mould manufacture |
| JPH0393521A (en) * | 1989-09-07 | 1991-04-18 | Sumitomo Heavy Ind Ltd | Method for forming cooling medium passage of mold |
| CA2097193A1 (en) * | 1991-10-01 | 1993-04-02 | Hiroshi Kataoka | Mold for synthetic resin molding |
| JP2000158458A (en) * | 1998-11-30 | 2000-06-13 | Arisawa Mfg Co Ltd | Method for manufacturing fine shape transfer product and method for manufacturing optical member |
| JP2009195914A (en) * | 2008-02-19 | 2009-09-03 | Mazda Motor Corp | Method for producing molding die, and molding die |
| KR20200068948A (en) * | 2018-12-06 | 2020-06-16 | 광주대학교산학협력단 | Cooling method for injection mold |
| CN109594042A (en) * | 2019-01-29 | 2019-04-09 | 苏州涂冠镀膜科技有限公司 | Anti- adherency hard coat and preparation method thereof for injection mold |
| CN111319194A (en) * | 2020-03-06 | 2020-06-23 | 盐城摩因宝新材料有限公司 | Medical injection part mold convenient for demolding and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023018565A (en) | 2023-02-08 |
| JP7182345B1 (en) | 2022-12-02 |
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Application publication date: 20220308 |