CN100566793C - A kind of filtration members, Manufacturing Approach And Forming Die - Google Patents
A kind of filtration members, Manufacturing Approach And Forming Die Download PDFInfo
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- CN100566793C CN100566793C CNB200610111507XA CN200610111507A CN100566793C CN 100566793 C CN100566793 C CN 100566793C CN B200610111507X A CNB200610111507X A CN B200610111507XA CN 200610111507 A CN200610111507 A CN 200610111507A CN 100566793 C CN100566793 C CN 100566793C
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Abstract
A kind of filtration members, Manufacturing Approach And Forming Die, the manufacture method of this filtration members comprises: one or more layers woven wire is placed the press forming mould, with described woven wire be wound on the described core back along described mould axially place described finishing die, make described pressure-bearing mould axially woven wire is suppressed to obtain described filtration members then along mould.Described filtration members is made by the manufacture method of filtration members of the present invention.Described shaping dies comprises finishing die, core and pressure-bearing mould, finishing die and pressure-bearing mould are the open column shape body, finishing die, core and pressure-bearing mould are of similar shape, the outline of the size in the interior space of finishing die and pressure-bearing mould big or small identical, the size in the interior space of pressure-bearing mould is big or small identical with the outline of core.This filtration members helps filtering out the residue in the gas, and existing good strainability has the high ventilation performance again, and installs simply, and can make different shape by the requirement of other parts or device and is used.
Description
Technical field
The present invention relates to a kind of filtration members that is used to filter, particularly relate to the filtration members of vehicle airbag.The invention still further relates to the manufacture method and the shaping dies of this filtration members.
Background technology
Along with developing of automobile industry, automobile is that human being's production and life bring great convenience, and is accompanied by the use of automobile, and traffic accident also constantly takes place.In order in traffic accident, effectively to alleviate injury to the driver and conductor, as the air bag of auto-safety mechanism, safeguard protection is provided can for the automobile driver and conductor, alleviate injury to the driver and conductor.Core component in the safe automobile air bag is a gas generator, so the effect of gas generator is just very crucial.
At present the gas generator structure of using as shown in Figure 1, gas generator comprises shell 6, filtration members 7, gas generation part 8 and ignition part 9.Shell 6 has steam vent 10, and filtration members 7, gas generation part 8 and ignition part 9 are installed in the shell 6 successively by outer course center.But the effect gas that produces in when burning of filtration members 7 Purge gas generation parts wherein, but the solid product that also produces during filtration combustion simultaneously.As this filtration members, the method that adopts usually is that woven wire is twined formation in the mode of lamination at present, or twines formation with foaming metal in the mode of multilayer, or forms with the wire multi-lay winding.Yet these preparation methods all need to finish with the screen cloth and the complex apparatus in multiple silk footpath and aperture, and the filtration members of making is unfavorable for filtering out the residue in the gas, can not reach the requirement that strainability and permeability are taken into account.
Summary of the invention
An object of the present invention is to reach the shortcoming that strainability and permeability are taken into account, the filtration members that provides a kind of strainability and permeability all can take into account at existing filtration members.
Another object of the present invention provides the manufacture method of this filtration members.
Further object of the present invention provides a kind of shaping dies of making this filtration members.
The manufacture method of filtration members provided by the invention comprises: one or more layers woven wire is placed the press forming mould, described mould comprises finishing die, core and pressure-bearing mould, with described woven wire be wound on the described core back along described mould axially place described finishing die, make described pressure-bearing mould axially described woven wire is suppressed to obtain described filtration members then along mould.
Filtration members provided by the invention is made along the axial pressed metal silk screen of described mould by the manufacture method of filtration members provided by the invention.
The shaping dies that the method for this filtration members of manufacturing provided by the invention is used, this shaping dies comprises finishing die, core and pressure-bearing mould, described finishing die and pressure-bearing mould are the open column shape body, finishing die, core and pressure-bearing mould are of similar shape, the outline of the size in the interior space of finishing die and pressure-bearing mould big or small identical, the size in the interior space of pressure-bearing mould is big or small identical with the outline of core.
Because this filtration members is to be formed by the axial compacting of woven wire along described mould, compares conventional roll filter made spare, more helps filtering out the residue in the gas.Therefore, its existing good strainability has the high ventilation performance again.This filtration members is installed simple, can make with original filtration members identical shapedly, also can make different shape by the requirement of other parts or device and be used.
Description of drawings
Fig. 1 is the structural representation of gas generator;
Fig. 2 is a shaping dies of the present invention pressed metal silk screen assembly drawing;
Fig. 3 is that shaping dies of the present invention pressed metal silk screen is configured as the filtration members schematic diagram;
Fig. 4 is the wire mesh structure schematic diagram;
Fig. 5 is shaping dies figure of the present invention.
Among the figure: the 1-woven wire; The 2-shaping dies; The 3-finishing die; The 4-core; 5-pressure-bearing mould; The 6-shell; The 7-filtration members; 8-gas generation part; The 9-ignition part; The 10-steam vent.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is elaborated.
Shown in Fig. 2-3, according to one embodiment of the present invention, the concrete manufacture method of filtration members 7 of the present invention is as follows:
1, woven wire 1 is cut into needed size, woven wire 1 can be purchased, and also can work out voluntarily, under the preferable case, adopts the woven wire of structure as shown in Figure 4;
2, the radial direction along core 4 fitly is wound on woven wire 1 on the outer surface of core 4, can reel one or more layers;
3, volume there is the core 4 of woven wire 1 in axial direction insert in the shaping dies 2, makes woven wire 1 between finishing die 3 and core 4;
4, pressure-bearing mould 5 in axial direction is enclosed within on the core 4, makes pressure-bearing mould 5 between finishing die 3 and core 4 and push down woven wire 1;
5, woven wire 1 and the shaping dies 2 that assembles is put on the press bench face, in axial direction to pressure-bearing mould 5 F that exerts pressure, pressure-bearing mould 5 along with directed force F to bottom offset, woven wire 1 is suppressed, make required filtration members 7;
6, the filtration members 7 after will being shaped withdraws from from shaping dies 2.
Filtration members 7 of the present invention is formed by the axial compacting of woven wire 1 along mould 2.Under the preferable case, this filtration members 7 is formed by the axial compacting of the multiple layer metal silk screen 1 that is combined with each other along mould 2, and the density of filtration members 7 is 1.5-4.0 gram/cubic centimetre, and the porosity of filtration members 7 is 49%-80%, the shape of filtration members 7 can be an arbitrary shape as required, as tubular.
The porosity of described filtration members 7 is: the numerical value that the cumulative volume of filtration members 7 deducts the shared volume gained of wire in the filtration members 7 accounts for the percentage of described filtration members 7 cumulative volumes.
Described woven wire 1 is preferably worked out with the form that bending intersects by wire.Under the preferable case, the silk wiry footpath of described woven wire 1 is the 0.2-2 millimeter, and the net footpath size of woven wire 1 is the 2-10 millimeter, and woven wire 1 is preferably stainless steel cloth.
The manufacture method of filtration members 7 of the present invention comprises: one or more layers woven wire 1 is placed press forming mould 2, then axially described woven wire 1 is suppressed to obtain described filtration members 7 along shaping dies 2.
Described shaping dies 2 comprises finishing die 3, core 4 and pressure-bearing mould 5.
As shown in Figure 5, described shaping dies 2 comprises finishing die 3, core 4 and pressure-bearing mould 5, described finishing die 3 and pressure-bearing mould 5 are the open column shape body, finishing die 3, core 4 and pressure-bearing mould 5 are of similar shape, the outline of the size in the interior space of finishing die 3 and pressure-bearing mould 5 big or small identical, the outline of the size in the interior space of pressure-bearing mould 5 and core 4 big or small identical.The shape of described finishing die 3, core 4 and pressure-bearing mould 5 columns can determine according to the shape that filtration members 7 requires, as cylindrical, elliptical cylinder-shape or square column type etc.For weight reduction, described core 4 is the open column shape body.Pressure-bearing mould 5 can be any material with toughness and compression resistance, and can select different materials according to different pressure, as carbon steel or steel alloy.
Because gas generator is in the course of the work, the internal temperature height, gas pressure is big, so gas is sent out The filtration members of giving birth in the device plays a part to filter hot particle and reduces gas temperature, and this makes it to filtration members Intensity and gas permeability requirements higher. Use the filtration members of the inventive method manufacturing in safe automobile air bag Test, this filtration members good filtration effect satisfies instructions for use fully, the filtration that rolls with tradition Part is compared, and has following advantage:
1. can be pressed into various shape, and product density is easy to regulate.
The traditional filtering part adopts the method for reeling to make, and generally can only make cylindric product, and the present invention Filtration members be adopt shaping dies compressing, so the filtration members shape depends on shaping dies shape chamber Shape; Adjust the density of filtration members by what and pressing pressure of control woven wire consumption, this is close Degree can be at the 1.5-4.0 gram per centimeter3Scope in regulate arbitrarily, to obtain best air penetrability.
2. manufacture craft is simple, and cost is low.
Traditional gas generator filtration members is generally made by the method for reeling, and needs multiple string diameter Screen cloth with the aperture. Wherein, the thick structure as filter of string diameter is set up, and mainly suppresses when work The expansion of filter; The screen cloth of string diameter thin (aperture is little) is then as the main first device that filters fine particle Part; If reach better filter effect, then need to add the order number and can reach 100 orders even higher fine groove Net, such process for making is loaded down with trivial details, has caused rolling the high expensive of filtration members. Even some volume The filtration members of system also needs to add glass fiber mat, and this glass fiber mat material is harmful, Simultaneously environment also there is adverse effect.
3. performance advantage.
The strainability that the strainability of the filtration members of compacting is compared conventional roll filter made spare can more be conducive to Filter out the residue in the gas. A large amount of evidences, the filter effect of the filtration members of compacting compares conventional roll The filter effect of the filtration members of system has improved 20%, even higher.
Because filtration members is to utilize shaping dies that woven wire is reeled, and along woven wire reel axially The direction pressure-bearing is shaped, so this filtration members can bear bigger pressure in the axial direction, so that the filtration members two ends Cooperate closelyr with other workpiece, good sealing effect avoids particle to discharge from the junction with gas, thereby Improved whole filter effect.
4. in light weight.
Because filtration members applies the coercive method and can obtain high product density, therefore, the filtration members weight of compacting can reduce greatly, generally than the low 10%-60% of the filtration members weight that rolls.
5. applied range.
Because the filtration members of compacting has above-mentioned advantage, so its filtration members applied range of rolling than tradition, it can use in relevant industries such as chemical industry, medicine, food, oil.
Claims (13)
1, a kind of manufacture method of filtration members, it is characterized in that this method comprises: one or more layers woven wire is placed the press forming mould, described mould comprises finishing die, core and pressure-bearing mould, with described woven wire be wound on the described core back along described mould axially place described finishing die, make described pressure-bearing mould axially described woven wire is suppressed to obtain described filtration members then along mould.
2, the method for claim 1 is characterized in that, described woven wire is worked out with the form that bending intersects by wire.
3, the method for claim 1 is characterized in that, the silk wiry footpath of described woven wire is the 0.2-2 millimeter, and the net footpath size of described woven wire is the 2-10 millimeter.
4, the method for claim 1 is characterized in that, described woven wire is a stainless steel cloth.
5, a kind of filtration members is characterized in that, this filtration members is made by any described method among the claim 1-4.
6, filtration members as claimed in claim 5 is characterized in that, described filtration members is formed by the multiple layer metal silk screen compacting that is combined with each other.
7, as claim 5 or 6 described filtration members, it is characterized in that, described filtration members be shaped as tubular.
As claim 5 or 6 described filtration members, it is characterized in that 8, described woven wire is worked out with the form that bending intersects by wire.
As claim 5 or 6 described filtration members, it is characterized in that 9, the silk wiry footpath of described woven wire is the 0.2-2 millimeter, the net footpath size of described woven wire is the 2-10 millimeter.
As claim 5 or 6 described filtration members, it is characterized in that 10, the density of described filtration members is 1.5-4.0 gram/cubic centimetre, the porosity of described filtration members is 49%-80%.
11, filtration members as claimed in claim 5 is characterized in that, described woven wire is a stainless steel cloth.
12, the shaping dies of the described method use of a kind of claim 1, it is characterized in that, this shaping dies comprises finishing die, core and pressure-bearing mould, described finishing die and pressure-bearing mould are the open column shape body, finishing die, core and pressure-bearing mould are of similar shape, the outline of the size in the interior space of finishing die and pressure-bearing mould big or small identical, the size in the interior space of pressure-bearing mould is big or small identical with the outline of core.
13, shaping dies as claimed in claim 12 is characterized in that, described core is the open column shape body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610111507XA CN100566793C (en) | 2006-08-21 | 2006-08-21 | A kind of filtration members, Manufacturing Approach And Forming Die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610111507XA CN100566793C (en) | 2006-08-21 | 2006-08-21 | A kind of filtration members, Manufacturing Approach And Forming Die |
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| Publication Number | Publication Date |
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| CN101130148A CN101130148A (en) | 2008-02-27 |
| CN100566793C true CN100566793C (en) | 2009-12-09 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012120954A (en) * | 2010-12-06 | 2012-06-28 | Cordialtec:Kk | Metal wire molded body and filter |
| CN102151540B (en) * | 2010-12-29 | 2015-01-07 | 天津市天大北洋化工实验设备有限公司 | Forming method of mesh coated ion exchange resin |
| CN103111136B (en) * | 2013-01-24 | 2015-02-11 | 浙江元凯科技有限公司 | Oil mist purification filter element |
| CN109277500A (en) * | 2018-09-30 | 2019-01-29 | 福州大学 | Hollow round table shape metal-rubber component preparation method based on braided metal silk screen |
| CN111764043B (en) * | 2020-05-22 | 2021-07-27 | 贵州海澄科技有限公司 | Mould for producing concentrated water net |
| CN112727968B (en) * | 2021-01-20 | 2021-11-02 | 福州大学 | Continuous gradient density metal rubber structure and preparation method thereof |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BYD Automobile Co., Ltd Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.4.25 to 2013.11.18 contract change Contract record no.: 2008440000072 Denomination of invention: Filtering member, its manufacturing method and shaping mould thereof License type: General permission Record date: 2008.5.4 |
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Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.4.25 TO 2013.11.18 Name of requester: BYD AUTOMOBILE CO., LTD. Effective date: 20080504 |
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