CN102240489A - Filter element for injection moulding and application thereof - Google Patents
Filter element for injection moulding and application thereof Download PDFInfo
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- CN102240489A CN102240489A CN2010101850236A CN201010185023A CN102240489A CN 102240489 A CN102240489 A CN 102240489A CN 2010101850236 A CN2010101850236 A CN 2010101850236A CN 201010185023 A CN201010185023 A CN 201010185023A CN 102240489 A CN102240489 A CN 102240489A
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- injection
- lding
- filter core
- filter
- filter material
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a filter element for injection moulding and an application thereof. By adopting an appropriate filter material, the defects that the appearance is poor and the filtering performance is reduced as resins overflow in an injection moulding processing process can be overcome. Besides, by adopting the filter material, the incidence of unqualified products in production can be greatly reduced.
Description
Technical field
The present invention relates to a kind of injection mo(u)lding filter core, be mainly used in the automobile filtration art.
Background technology
For existing filter core (injection mo(u)lding filter core), because filter material thickness causes when injection mo(u)lding, the part resin is from overflowing between mould and the filter material.Certain a part of reason is that perhaps mold for forming is because long-time the use because the injection mo(u)lding resin is selected for use improperly, causes reason such as distortion that moulding resin is overflowed.Reason but more is because the filter material selected for use is improper, when causing injection mo(u)lding because by the mould pressurized, filter material in time do not recover or thickness own just not thick, thereby the resin in the mould overflows from the space.And resin overflows and can influence the outward appearance of product, and can increase the filtration crushing of material and the defective work incidence in the production.Filtering industry, especially air conditioner for automobile cleaner use injection mo(u)lding is many, so such injection mo(u)lding filter core must solve the problem that resin overflows.
Though as having related to a kind of manufacture method of air cleaner of injection mo(u)lding among the Chinese publication CN1474713, the running resistance of still not improving outward appearance, minimizing defective work incidence and the filter core of product remains unchanged very high.
Summary of the invention
The object of the present invention is to provide injection mo(u)lding filter core of a kind of good appearance, low pressure loss and uses thereof.
Injection mo(u)lding filter core of the present invention is 44g/cm when measuring pressure
2, METHOD FOR CONTINUOUS DETERMINATION 10 minutes, the used filter material thickness of this filter core reduced rate is between 0.8～5%, and is preferred 1～2%, and the resin length that surface of filter medium overflows is not more than 5mm, preferably is not more than 3mm.If wherein filter material thickness reduced rate is less than 0.8%, illustrate that filter material is harder, be difficult to compressive deformation, be easy to overflow resin during this filter material injection mo(u)lding; If filter material thickness reduced rate, illustrates the very easy compressive deformation of filter material greater than 5%,, also be easy to overflow resin during injection mo(u)lding owing to recover difficult.And overflow for resin, its length has and long weak point is arranged, and in general, can there be influence in the resin length that surface of filter medium overflows to the crushing (running resistance) of filter core greater than 5mm; And the resin length of overflowing especially is fine less than 3mm less than 5mm, does not influence exterior quality.The resin length that the surface of filter medium here overflows is meant that the resin that overflows from the resin edge inboard covers the extreme length of effective surface of filter medium.
Filter material material of the present invention is a nonwoven, and its thickness is that 0.3～0.8mm, grammes per square metre are 15～100g/m
2Filter efficiency and running resistance at the nonwoven of above-mentioned thickness range are suitable, and the most suitable injection moulding processing; And grammes per square metre is lower than 15g/m
2, efficient is low, and filter material is damaged easily during injection moulding; If grammes per square metre is greater than 100g/m
2, efficient is to have improved, but the problem that can bring the rising of running resistance simultaneously and be difficult to injection moulding processing.
Injection mo(u)lding filter core of the present invention has installed the incorporate clathrate barrier that prevents that foreign matter from entering additional.Industry is many because the injection mo(u)lding filter core is used in the automobile filtration; such as air-conditioning filter cleaner; in use; for prevent hard and have the foreign matter of water caltrop to enter air-conditioner filtering system after destroy soft cleaner (filter material); generally install the barrier of a clathrate or other shape additional in cartridge surface; preferred clathrate barrier so just plays a protective effect.Certainly, this barrier is the performance that can not reduce filter core.
For incorporate definition, refer to the filter core processing method of routine and compare, do not need good back on sale by processing methods loaded down with trivial details and consuming time such as stickup length frame materials, but directly be pressed into cleaner by make-up machine.
For this injection mo(u)lding filter core, in order to improve filter area, filter material is through the processing that gives a discount.Because after the processing that gives a discount, though take same volume (volume), after the processing that gives a discount, filter area can increase by 2～5 times, and performance can not descend substantially simultaneously.Especially in automobile industry, in order to improve occupant's comfortableness, maximum is brought up in the automotive interior space as far as possible, but can not increase the overall volume of automobile, can only be by reducing the volume of automobile inner part.Such as the air-conditioning system possessive volume reduces, thereby must reduce the volume of cleaner (filter core), so the processing that gives a discount is necessary.
Injection mo(u)lding filter core of the present invention is mainly used in the automobile filtration art.
Injection mo(u)lding filter core good appearance of the present invention has good low running resistance, has effectively controlled the incidence of defective work by selecting suitable filter material in the process of producing filter core.
The specific embodiment
The method of testing of various performance parameters is as follows among the present invention:
(1) thickness reduced rate: the circular filter material that at first with 5 diameters is 17cm is superimposed successively, adopt again Japanese must be happy TECLOCK system SM-114 analyzer measure its original depth, apply the weight of 10kg then in the above, promptly exerting pressure is 44g/cm
2And continue to measure its pressurized thickness after 10 minutes again, calculate thickness reduced rate=(original depth-pressurized the thickness)/original depth of filter material at last.
(2) thickness: adopt Japanese must mensuration by happy TECLOCK system SM-114 analyzer.
(3) grammes per square metre: take 100cm by the disk sampler
2Circle (5), on balance, take by weighing weight M1, M2, M3, M4, M5 (unit: g), calculate the grammes per square metre (unit: g/m of filter material at last respectively
2The * of)=(M1+M2+M3+M4+M5) 100/5.
Embodiment 1
Select for use melt spraying non-woven fabrics and chemical adhesion nonwoven fit to form filter material (T-1), its thickness be 0.553mm (5=2.765mm), grammes per square metre is 71g/m
2, estimating this filter material, to record its thickness reduced rate be 0.81%, then it is given a discount processing and injection mo(u)lding make injection mo(u)lding filter core of the present invention.The maximum length that effective surface of filter medium resin of this filter core overflows is 2.9mm.Concrete outcome sees Table 1.
Embodiment 2
Select for use melt spraying non-woven fabrics and chemical adhesion nonwoven to fit into filter material (T-2), its thickness be 0.624mm (5=3.120mm), grammes per square metre is 92g/m
2, estimating this filter material, to record its thickness reduced rate be 3.6%, then it is given a discount processing and injection mo(u)lding make injection mo(u)lding filter core of the present invention.The maximum length that effective surface of filter medium resin of this filter core overflows is 4.2mm.Concrete outcome sees Table 1.
Embodiment 3
Select for use melt spraying non-woven fabrics and chemical adhesion nonwoven to fit into filter material (T-3), its thickness be 0.466mm (5=2.330mm), grammes per square metre is 64g/m
2, estimating this filter material, to record its thickness reduced rate be 1.7%, then it is given a discount processing and injection mo(u)lding make injection mo(u)lding filter core of the present invention.The maximum length that effective surface of filter medium resin of this filter core overflows is 0.8mm.Concrete outcome sees Table 1.
The filter core of embodiment 1～3 is mainly used in the automobile filtration art.
Comparative example 1
Select for use spunbond hot pressing nonwoven (B-1) as filter material, its thickness be 0.350mm (5=1.750mm), grammes per square metre is 130g/cm
2, estimating this filter material, to record its thickness reduced rate be 0.34%, then it is given a discount processing and injection mo(u)lding make injection mo(u)lding filter core of the present invention.The maximum length that effective surface of filter medium resin of this filter core overflows is 6.2mm.Concrete outcome sees Table 1.
Comparative example 2
Select for use melt spraying non-woven fabrics and chemical adhesion nonwoven to fit into filter material (B-2), its thickness be 0.902mm (5=4.510mm), grammes per square metre is 100g/m
2, estimating this filter material, to record its thickness reduced rate be 6.2%, then it is given a discount processing and injection mo(u)lding make injection mo(u)lding filter core of the present invention.The maximum length that effective surface of filter medium resin of this filter core overflows is 5.4mm.Concrete outcome sees Table 1.
Table 1
Zero: good ◎: excellent *: poor
Claims (6)
1. an injection mo(u)lding filter core is characterized in that: when mensuration pressure is 44g/cm
2, METHOD FOR CONTINUOUS DETERMINATION 10 minutes, the used filter material thickness of this filter core reduced rate is between 0.8～5%, and the resin length that surface of filter medium overflows is not more than 5 millimeters.
2. injection mo(u)lding filter core according to claim 1 is characterized in that: when measuring pressure is 44g/cm
2, METHOD FOR CONTINUOUS DETERMINATION 10 minutes, this filter material thickness reduced rate is between 1～2%.
3. injection mo(u)lding filter core according to claim 1 and 2 is characterized in that: the resin length that described surface of filter medium overflows is not more than 3 millimeters.
4. injection mo(u)lding filter core according to claim 1 is characterized in that: described filter core has installed incorporate clathrate barrier additional.
5. injection mo(u)lding filter core according to claim 1 is characterized in that: described filter material is through the processing that gives a discount.
6. an injection mo(u)lding filter core as claimed in claim 1 is mainly used in the automobile filtration art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010185023.6A CN102240489B (en) | 2010-05-14 | 2010-05-14 | Filter element for injection moulding and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010185023.6A CN102240489B (en) | 2010-05-14 | 2010-05-14 | Filter element for injection moulding and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240489A true CN102240489A (en) | 2011-11-16 |
| CN102240489B CN102240489B (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010185023.6A Expired - Fee Related CN102240489B (en) | 2010-05-14 | 2010-05-14 | Filter element for injection moulding and application thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102240489B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163254A (en) * | 2022-07-04 | 2022-10-11 | 神通科技集团股份有限公司 | Fiber cotton structure of active oil-gas separator and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012911A1 (en) * | 1991-12-20 | 1993-07-08 | Minnesota Mining And Manufacturing Company | A coated abrasive belt with an endless, seamless backing and method of preparation |
| US20020031967A1 (en) * | 2000-09-08 | 2002-03-14 | Japan Vilene Co., Ltd. | Fine-fibers-dispersed nonwoven fabric, process and apparatus for manufacturing same, and sheet material containing same |
| US20040016345A1 (en) * | 2002-07-25 | 2004-01-29 | 3M Innovative Properties Company | Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers |
| CN1474713A (en) * | 2000-11-10 | 2004-02-11 | Method for making air filter | |
| CN1898007A (en) * | 2003-12-24 | 2007-01-17 | 3M创新有限公司 | Filter assembly |
-
2010
- 2010-05-14 CN CN201010185023.6A patent/CN102240489B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993012911A1 (en) * | 1991-12-20 | 1993-07-08 | Minnesota Mining And Manufacturing Company | A coated abrasive belt with an endless, seamless backing and method of preparation |
| US20020031967A1 (en) * | 2000-09-08 | 2002-03-14 | Japan Vilene Co., Ltd. | Fine-fibers-dispersed nonwoven fabric, process and apparatus for manufacturing same, and sheet material containing same |
| CN1474713A (en) * | 2000-11-10 | 2004-02-11 | Method for making air filter | |
| US20040016345A1 (en) * | 2002-07-25 | 2004-01-29 | 3M Innovative Properties Company | Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers |
| CN1898007A (en) * | 2003-12-24 | 2007-01-17 | 3M创新有限公司 | Filter assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163254A (en) * | 2022-07-04 | 2022-10-11 | 神通科技集团股份有限公司 | Fiber cotton structure of active oil-gas separator and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102240489B (en) | 2014-11-26 |
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Effective date of registration: 20170607 Address after: Japan Tokyo central Nihonbashi Muromachi 1-1-2 Patentee after: Toray Industries, Inc. Address before: 226009 Nantong Province Economic and Technological Development Zone, the New South Road, No. 58, No. Patentee before: Toray Fiber Research Institute (China) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190514 |