CN109760326B - Welding method for purification tank parts and purification tank - Google Patents
Welding method for purification tank parts and purification tank Download PDFInfo
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- CN109760326B CN109760326B CN201910089492.9A CN201910089492A CN109760326B CN 109760326 B CN109760326 B CN 109760326B CN 201910089492 A CN201910089492 A CN 201910089492A CN 109760326 B CN109760326 B CN 109760326B
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- 238000003466 welding Methods 0.000 title claims abstract description 126
- 238000000746 purification Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 82
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000002844 melting Methods 0.000 claims abstract description 21
- 230000008018 melting Effects 0.000 claims abstract description 19
- 230000004927 fusion Effects 0.000 claims description 45
- 230000008569 process Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 239000012943 hotmelt Substances 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 9
- 210000001503 joint Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention discloses a welding method of purification tank parts, which comprises the steps of heating a heating plate, hot melting, welding, maintaining pressure, cooling and the like, wherein after the upper part and the lower part are heated and pressurized, the welding surfaces are fused, solidified and integrated, and then a hot melting machine is maintained pressure for a certain time period to cool the upper part and the lower part to a certain temperature, so that the welding stability of all tank main body parts is ensured. The invention also discloses a purification tank, which comprises a tank bottom, an upper cover and a tank body arranged between the tank bottom and the upper cover, wherein the tank body at least comprises a first tank main body and a second tank main body which are connected together in a hot melting welding mode. Compared with the prior art, the assembling efficiency of each part is high, time and labor are saved, and the connection is firm.
Description
Technical Field
The invention belongs to the technical field of processing of purification tanks, and particularly relates to a welding method for purification tank parts and a purification tank manufactured by using the welding method.
Background
The sewage treatment purification tank on the market mainly comprises a tank bottom, a plurality of tank main bodies and an upper cover, and is described below by taking two tank main bodies as an example, wherein the two tank main bodies are respectively a first tank main body and a second tank main body, the first tank main body and the second tank main body are butted through a sealing ring, and sealing ring grooves are respectively formed in the connecting ends of the first tank main body and the second tank main body. When the butt joint installation, need artifically arrange the sealing washer card in the sealing washer inslot, because first jar main part and second jar main part general appearance is great, single-man operation is more difficult to the process of putting at the sealing washer groove is consuming time. Moreover, after the sealing ring is placed, a plurality of screws (generally 8 screws) are locked when the first tank body and the second tank body are butted, and manual screw locking is time-consuming. And the sealing ring is a special sealing ring, and a special sealing ring die is required to be additionally arranged. Therefore, the butt joint mode of the first tank body and the second tank body of the traditional purification tank is time-consuming and labor-consuming, and the cost is increased.
Disclosure of Invention
In view of the above, the present invention provides a welding method for parts of a purification tank, which is simple in operation and saves time and labor, and a purification tank manufactured by the welding method.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a welding method for purifying tank parts comprises the following steps:
(1) preparing parts of a purification tank to be butted, wherein the parts comprise a first tank body and a second tank body;
preparing a hot melting machine comprising a heating module and a pressurizing module, wherein the heating module comprises a first heating plate and a second heating plate which are oppositely arranged, the first heating plate is heated to 210 ℃ in advance, and the second heating plate is heated to 215 ℃;
(2) when the first-time welding is carried out, the first tank main body and the second tank main body are respectively placed on the pressurizing module, the pressurizing module grabs the first tank main body and the second tank main body, then the pressurizing module respectively pressurizes the first tank main body and the second tank main body until the welding surface of the first tank main body contacts the first heating plate, the welding surface of the second tank main body contacts the second heating plate, then the pressurizing module pressurizes the first tank main body for 15MPa at one time and pressurizes the second tank main body for 90MPa at one time, and after 65 seconds of hot melting, the first heating plate and the second heating plate finish withdrawing operation within 10 seconds;
(3) performing fusion welding and pressure maintaining on the first tank body and the second tank body, wherein the pressure maintaining time is 150 seconds, and the first tank body and the second tank body are subjected to secondary pressurization of 60MPa and 130MPa respectively in the pressure maintaining process;
(4) and (4) cooling after pressure maintaining in the step (3) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the first tank main body and the second tank main body to form a first welding body.
Further, the welding method of the purification tank parts further comprises the following steps:
(5) after cooling in the step (4), carrying out second fusion welding, wherein the parts of the purification tank further comprise a third tank main body and a fourth tank main body, the third tank main body is placed on a pressurizing module, the third tank main body is grabbed by the pressurizing module, then the first fusion welding body and the third tank main body are respectively pressurized by the pressurizing module until the fusion welding surface of the first fusion welding body contacts with the first heating plate, the fusion welding surface of the third tank main body contacts with the second heating plate, then the first fusion welding body is pressurized by the pressurizing module for one time by 15MPa, the third tank main body is pressurized by one time by 90MPa, and after 65S hot melting, the first heating plate and the second heating plate finish withdrawing actions within 10 seconds;
(6) carrying out welding and pressure maintaining on the first welding body and the third tank main body, wherein the pressure maintaining time is 150 seconds, and in the pressure maintaining process, the first welding body is secondarily pressurized by 40MPa, and the third tank main body is secondarily pressurized by 180 MPa;
(7) and (4) cooling after pressure maintaining in the step (6) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the first welding body and the third tank main body to form a second welding body.
Further, the welding method of the purification tank parts further comprises the following steps:
(8) after the cooling in the step (7), carrying out third fusion welding, placing the fourth tank main body on a pressurizing module, grabbing the fourth tank main body by the pressurizing module, then pressurizing the second fusion welding body and the fourth tank main body by the pressurizing module respectively until the fusion welding surface of the second fusion welding body contacts with the first heating plate, contacting the fusion welding surface of the fourth tank main body with the second heating plate, then pressurizing the second fusion welding body by the pressurizing module for 15MPa for one time, simultaneously pressurizing the fourth tank main body for one time by 90MPa, and after carrying out hot melting for 65S, finishing the withdrawing action by the first heating plate and the second heating plate within 10 seconds;
(9) carrying out welding and pressure maintaining on the second welding body and the fourth tank main body which are distributed in the upper and lower positions, wherein the pressure maintaining time is 150 seconds, and the second welding body and the fourth tank main body are secondarily pressurized by 30MPa and 180MPa respectively in the pressure maintaining process;
(10) and (4) cooling after pressure maintaining in the step (9) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the second welding body and the fourth tank main body to form a third welding body.
The invention discloses a welding method of purification tank parts, which has the following beneficial effects: a. the temperature difference between the first heating plate and the second heating plate ensures the temperature of the welding surface of the tank main body to be consistent after the plate is removed, so that the plastic product is melted more thoroughly; b. after the upper part and the lower part are heated and pressurized, the fusion surfaces are fused, solidified and combined into a whole, and then the pressure of the hot-melting machine is maintained for a certain period of time to be cooled to a certain temperature, so that the stability of the fusion of the main parts of the tanks is ensured. c. Further, the primary and secondary pressurization makes the welded surfaces of the respective tank main bodies contact more sufficiently (removes air bubbles that may occur inside).
The purifying tank comprises a tank bottom, an upper cover and a tank body arranged between the tank bottom and the upper cover, wherein the tank body at least comprises a first tank main body and a second tank main body which are mutually butted, and the first tank main body and the second tank main body are connected together in a hot melting welding mode.
Further, the jar body still includes third jar main part and fourth jar main part, first jar main part, second jar main part, third jar main part and fourth jar main part dock in proper order from the top, the second jar main part with third jar main part links together through hot melt welded mode, the third jar main part with fourth jar main part links together through hot melt welded mode.
After the technical scheme is adopted, the purification tank manufactured by the welding method is high in assembly efficiency of all parts, time-saving and labor-saving, and all parts are connected more firmly.
Drawings
FIG. 1 is a schematic view of the tank body of the purification tank of the present invention;
FIG. 2 is a schematic structural view illustrating a preheating state of a heating plate in welding according to the present invention;
FIG. 3 is a schematic structural view showing the state of components during welding according to the present invention;
FIG. 4 is a schematic view of the pressurized state during welding according to the present invention;
FIG. 5 is a schematic structural view of the parts of the unheated plate in a butt joint pressure maintaining state according to the present invention;
FIG. 6 is a schematic view of another pressurized state in the welding process of the present invention;
fig. 7 is a schematic view showing the structure of the purification tank of the present invention.
In the figure:
a first canister body-11; a welding surface-111;
a second canister body-12; a welding surface-121;
a third canister body-13; a fourth canister body-14;
a hot melting machine-2; a first heating plate-21;
a second heating plate-22; a first fusion body-3;
tank bottom-41; and an upper cover-42.
A tank body-43.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
A welding method for purifying tank parts comprises the following steps:
(1) as shown in fig. 1 to 5, the parts of the purification tank body to be butted are prepared, and the first tank body 11, the second tank body 12, the third tank body 13 and the fourth tank body 14 are prepared as an example, and in the present invention, the connection ends of the parts of the purification tank are made of plastic materials;
preparing a hot melting machine 2 comprising a heating module and a pressurizing module, wherein the heating module mainly comprises a first heating plate 21 and a second heating plate 22 which are oppositely arranged, the first heating plate 21 is preheated to 210 ℃ in advance by adopting an electric heating mode, the second heating plate 22 is preheated to 215 ℃, and the pressurizing module mainly comprises a 30-ton hydraulic press;
(2) when the first welding is performed, the first tank body 11 and the second tank body 12 are placed on the pressurizing module, that is, parts are moved, the pressurizing module grasps the first tank body 11 and the second tank body 12, and then the pressurizing module pressurizes the first tank body 11 and the second tank body 12, respectively, until the welding surface 111 of the first tank body 11 contacts the first heating plate 21, the welding surface 121 of the second tank body 12 contacts the second heating plate 22, and the heating module is located between the first tank body 11 and the second tank body 12, specifically, the first heating plate 21 is located right above the second heating plate 22, the first tank body 11 is located right above the first heating plate 21, the second tank body 12 is located right below the second heating plate 22, and then the pressurizing module pressurizes the first tank body 11 once by 15Mpa and pressurizes the second tank body 12 once by 90 Mpa. The surface of the tank body fusion surface expands in the heating process, and an expansion pressure value rises.
After the hot melting for 65S, the pressurizing module temporarily stops pressurizing, and the first heating plate 21 and the second heating plate 22 respectively complete the withdrawing action within 10 seconds; at this time, the temperature of the welded surface 111 of the first tank main body 11 and the temperature of the welded surface 121 of the second tank main body 12 are kept equal;
(3) the first tank body 11 and the second tank body 12 which are distributed in the upper and lower positions are welded and pressure-maintained, the pressure-maintaining time is 150 seconds, the pressurizing modules respectively pressurize 60Mpa for the first tank body 11 for the second time and 130Mpa for the second tank body 12 for the second time in the pressure-maintaining process, and the height of the welding surface of the tank body is reduced under pressurization (the welding surface is softened after being heated by a heating plate), so that the welding surface is pushed in a secondary pressurizing mode to ensure that the welding surface is effectively extruded;
(4) and (4) after the pressure is maintained in the step (3), cooling for 50S, and naturally cooling to 50 ℃ (or room temperature), so that the first tank main body 11 and the second tank main body 12 are welded to form the first welded body 3.
(5) After cooling in step (4), second fusion bonding is performed, as shown in fig. 6, the third tank body 13 is placed on the pressurizing module, the third tank body 13 is grasped by the pressurizing module, then the first welded body 3 and the third tank main body 13 are respectively pressurized by the pressurizing module until the welding surface of the first welded body 3 contacts the first heating plate 21, the welding surface of the third tank main body 13 contacts the second heating plate 22, the heating module is positioned between the first welded body 3 and the third tank main body 13, specifically, the first welded body 3 is positioned right above the first heating plate 21, the third tank main body 13 is positioned right below the second heating plate 22, then, the first welded body 3 is pressurized by 15MPa once by the pressurizing module, and the third tank body 13 is pressurized by 90MPa once by the pressurizing module, and after 65 seconds of hot melting, the pressurizing module stops pressurizing, and the first heating plate 21 and the second heating plate 22 respectively complete the withdrawing action within 10 seconds; at this time, the temperature of the welded surface of the first welded body 3 is equal to the temperature of the welded surface of the third tank main body 13;
(6) the first welding body 3 and the third tank main body 13 which are distributed in the upper and lower positions are welded and pressure-maintained for 150 seconds, and the pressurizing module respectively pressurizes the first welding body 3 for the second time by 40MPa and pressurizes the third tank main body 13 for the second time by 180MPa in the pressure-maintaining process;
(7) and (4) after the pressure is maintained in the step (6), cooling for 50S, and naturally cooling to 50 ℃ (or room temperature), so that the first welding body 3 and the third tank main body 13 are welded to form a second welding body.
(8) After the cooling in the step (7), performing a third fusion bonding, placing the fourth tank main body 14 on a pressurizing module, grasping the fourth tank main body 14 by the pressurizing module, and then pressurizing the second fusion bonding body and the fourth tank main body 14 by the pressurizing module respectively until the fusion bonding surface of the second fusion bonding body contacts the first heating plate 21, the fusion bonding surface of the fourth tank main body 14 contacts the second heating plate 22, and the heating module is located between the second fusion bonding body and the fourth tank main body 14, at this time, the second fusion bonding body is located right above the first heating plate 21, the fourth tank main body 14 is located right below the second heating plate 22, and then pressurizing the second fusion bonding body by the pressurizing module for 15Mpa once, and simultaneously pressurizing the fourth tank main body 14 for 90Mpa once, after the hot melting for 65S, the pressurizing module temporarily stops pressurizing, and the first heating plate 21 and the second heating plate 22 complete the withdrawing operation within 10 seconds; at this time, the temperature of the welded surface of the second welded body is equal to the temperature of the welded surface of the fourth tank main body 14;
(9) welding and pressure maintaining are carried out on the second welding body and the fourth tank main body 14 which are distributed in the upper position and the lower position, the pressure maintaining time is 150 seconds, and in the pressure maintaining process, the pressurizing module respectively carries out secondary pressurization on the second welding body by 30MPa and carries out secondary pressurization on the fourth tank main body 14 by 180 MPa;
(10) and (3) after the pressure is maintained in the step (9), cooling is carried out for 50S, and natural cooling is carried out to 50 ℃ (or room temperature), namely, the welding of the second welding body and the fourth tank main body 14 is completed, so that a third welding body is formed. In this embodiment, the third welded body is a complete tank body of the purification tank.
It should be noted that, during the second and third welding, when the temperatures of the first heating plate 21 and the second heating plate 22 are lower than the expected temperature, the preparation work for the first welding may be repeated, and the first heating plate 21 and the second heating plate 22 are heated again to the expected temperature before the corresponding welding operation is performed.
The invention discloses a welding method of purification tank parts, which has the following beneficial effects: (1) after a plurality of tests, the temperature change of the surface of the welding surface of the tank main body is not large in the process of withdrawing after the first heating plate 21 is contacted with the welding surface of the tank main body; in the course of the second heating plate 22 being withdrawn after coming into contact with the welded surface of the can main body, the surface temperature of the welded surface of the can main body is largely changed (the surface temperature is lowered by the rising movement of the hot air). The temperature difference between the first heating plate 21 and the second heating plate 22 ensures that the temperature of the welding surfaces of the tank main bodies is kept consistent during welding, plastic products are melted more thoroughly at the same temperature, and the hot melting effect is good. (2) Through the primary pressurization and the secondary pressurization, air bubbles possibly generated in the welding surface of the tank main body are fully removed, so that the welding surface of each tank main body is more fully contacted during welding. (3) After the upper part and the lower part are heated and pressurized, the fusion surfaces are fused, solidified and combined into a whole, and then the pressure of the hot-melting machine is maintained for a certain period of time to be cooled to a certain temperature, so that the stability of the fusion of the main parts of the tanks is ensured.
A purification tank manufactured by the above welding method is shown in FIG. 7. The tank comprises a tank bottom 41, an upper cover 42 and a tank body 43 arranged between the tank bottom 41 and the upper cover 42, wherein the tank body 43 comprises a first tank main body 11, a second tank main body 12, a third tank main body 13 and a fourth tank main body 14 which are sequentially butted from top to bottom. The first tank main body 11 and the second tank main body 12 are coupled together by means of thermal fusion welding, the second tank main body 12 and the third tank main body 13 are coupled together by means of thermal fusion welding, and the third tank main body 13 and the fourth tank main body 14 are coupled together by means of thermal fusion welding. Further, the can body 43 and the can bottom 41 can be connected together by hot melting welding, and the upper cover 42 is hinged on the can body 43 in a manner of being capable of being turned over and locked. In a preferred embodiment, each tank body is a closed ring body with a certain height, and has the same shape and size, and the tank bodies are butted to form a tank inner cavity for purification, such as treatment of rural domestic sewage.
The purification tank manufactured by the welding method has the advantages that the assembly efficiency of all parts is high, the time and the labor are saved, and the connection among the tank main bodies is firm.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (5)
1. A welding method for purifying tank parts is characterized by comprising the following steps:
(1) preparing parts of a purification tank to be butted, wherein the parts comprise a first tank body and a second tank body;
preparing a hot melting machine comprising a heating module and a pressurizing module, wherein the heating module comprises a first heating plate and a second heating plate which are oppositely arranged, the first heating plate is heated to 210 ℃ in advance, and the second heating plate is heated to 215 ℃;
(2) when the first-time welding is carried out, the first tank main body and the second tank main body are respectively placed on the pressurizing module, the pressurizing module grabs the first tank main body and the second tank main body, then the pressurizing module respectively pressurizes the first tank main body and the second tank main body until the welding surface of the first tank main body contacts the first heating plate, the welding surface of the second tank main body contacts the second heating plate, then the pressurizing module pressurizes the first tank main body for 15MPa at one time and pressurizes the second tank main body for 90MPa at one time, and after 65 seconds of hot melting, the first heating plate and the second heating plate finish withdrawing operation within 10 seconds;
(3) performing fusion welding and pressure maintaining on the first tank body and the second tank body, wherein the pressure maintaining time is 150 seconds, and the first tank body and the second tank body are subjected to secondary pressurization of 60MPa and 130MPa respectively in the pressure maintaining process;
(4) and (4) cooling after pressure maintaining in the step (3) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the first tank main body and the second tank main body to form a first welding body.
2. A method of welding purge canister components as defined in claim 1, wherein: further comprising the steps of:
(5) after cooling in the step (4), carrying out second fusion welding, wherein the parts of the purification tank further comprise a third tank main body and a fourth tank main body, the third tank main body is placed on a pressurizing module, the third tank main body is grabbed by the pressurizing module, then the first fusion welding body and the third tank main body are respectively pressurized by the pressurizing module until the fusion welding surface of the first fusion welding body contacts with the first heating plate, the fusion welding surface of the third tank main body contacts with the second heating plate, then the first fusion welding body is pressurized by the pressurizing module for one time by 15MPa, the third tank main body is pressurized by one time by 90MPa, and after 65S hot melting, the first heating plate and the second heating plate finish withdrawing actions within 10 seconds;
(6) carrying out welding and pressure maintaining on the first welding body and the third tank main body, wherein the pressure maintaining time is 150 seconds, and in the pressure maintaining process, the first welding body is secondarily pressurized by 40MPa, and the third tank main body is secondarily pressurized by 180 MPa;
(7) and (4) cooling after pressure maintaining in the step (6) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the first welding body and the third tank main body to form a second welding body.
3. The method of fusing purification tank parts according to claim 2, wherein: further comprising the steps of:
(8) after the cooling in the step (7), carrying out third fusion welding, placing the fourth tank main body on a pressurizing module, grabbing the fourth tank main body by the pressurizing module, then pressurizing the second fusion welding body and the fourth tank main body by the pressurizing module respectively until the fusion welding surface of the second fusion welding body contacts with the first heating plate, contacting the fusion welding surface of the fourth tank main body with the second heating plate, then pressurizing the second fusion welding body by the pressurizing module for 15MPa for one time, simultaneously pressurizing the fourth tank main body for one time by 90MPa, and after carrying out hot melting for 65S, finishing the withdrawing action by the first heating plate and the second heating plate within 10 seconds;
(9) carrying out welding and pressure maintaining on the second welding body and the fourth tank main body which are distributed in the upper and lower positions, wherein the pressure maintaining time is 150 seconds, and the second welding body and the fourth tank main body are secondarily pressurized by 30MPa and 180MPa respectively in the pressure maintaining process;
(10) and (4) cooling after pressure maintaining in the step (9) for 50S, and naturally cooling to 50 ℃ or room temperature to complete the welding of the second welding body and the fourth tank main body to form a third welding body.
4. A purification tank comprising a tank bottom, an upper lid, and a tank body disposed between the tank bottom and the upper lid, the tank body comprising at least a first tank body and a second tank body butted against each other, the purification tank being manufactured by the fusion joining method according to claim 1, wherein: the first tank main body and the second tank main body are connected together by means of hot-melt welding.
5. The purification tank of claim 4, wherein: the tank body further comprises a third tank body and a fourth tank body, the first tank body, the second tank body, the third tank body and the fourth tank body are sequentially butted from top to bottom, the second tank body is connected with the third tank body in a hot-melt welding mode, and the third tank body is connected with the fourth tank body in a hot-melt welding mode.
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| CN204382659U (en) * | 2014-12-30 | 2015-06-10 | 河南金鹏管道有限公司 | A kind of without pressure tower tank bonding machine |
| CN206045543U (en) * | 2016-08-30 | 2017-03-29 | 上海东诚环保科技有限公司 | A kind of water-treated filter tank |
| CN106626403A (en) * | 2016-11-28 | 2017-05-10 | 芜湖捷欧汽车部件有限公司 | Injection molding vacuum tank assembly processing and welding process for automobile braking system |
| CN107053686A (en) * | 2017-05-12 | 2017-08-18 | 河北亚大汽车塑料制品有限公司 | A kind of processing method of other working of plastics of hollow plastic article surface soldered and its realize device |
| CN207294508U (en) * | 2017-08-21 | 2018-05-01 | 福建省三净环保科技有限公司 | A kind of new type purification groove |
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