CN104608735A - Gas filter used in automobile safety air bag and manufacturing method thereof - Google Patents

Gas filter used in automobile safety air bag and manufacturing method thereof Download PDF

Info

Publication number
CN104608735A
CN104608735A CN201510050167.3A CN201510050167A CN104608735A CN 104608735 A CN104608735 A CN 104608735A CN 201510050167 A CN201510050167 A CN 201510050167A CN 104608735 A CN104608735 A CN 104608735A
Authority
CN
China
Prior art keywords
metal fiber
fiber felt
wire net
protecting wire
air bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510050167.3A
Other languages
Chinese (zh)
Inventor
徐小平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Haipu Filtering Separation Technology Co Ltd
Original Assignee
Suzhou Haipu Filtering Separation Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Haipu Filtering Separation Technology Co Ltd filed Critical Suzhou Haipu Filtering Separation Technology Co Ltd
Priority to CN201510050167.3A priority Critical patent/CN104608735A/en
Publication of CN104608735A publication Critical patent/CN104608735A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic

Abstract

The invention discloses a gas filter used in an automobile safety air bag. The gas filter comprises a filter element and a protecting part arranged on the outer portion of the filter element. The protecting part is used for supporting and protecting the filter element. The filter element is at least one layer of metal fiber felt filtering pipe which is tightly attached to the interior of the protecting part and fixedly connected with the protecting part, and the protecting part is a punching pipe or a diamond protecting pipe. The metal fiber felt filtering pipe comprises one or more structures of metal fiber felt, single-layer protection net metal fiber felt and double-layer protection net metal fiber felt, and a protection net is arranged on the surface of the metal fiber felt. Holes of the metal fiber felt are arranged disorderly, breathability is good, and the filtering function is good.

Description

For gas filter in safe automobile air bag and preparation method thereof
Technical field
The invention belongs to vehicular spare parts field, be specifically related to a kind of for gas filter in safe automobile air bag and preparation method thereof.
Background technology
Safe automobile air bag is the important component of of automobile, safety air bag is generally by sensor, ECU (Electrical Control Unit), gas generator, air bag, the compositions such as afterflow device, usual gas generator forms air bag module together with air bag etc., sensor experiences auto against intensity, and by the signal transmission of impression to controller, the signal of controller receiving sensor and processing, when controller judges to be necessary to open air bag, send ignition signal immediately with traps gas producer, after gas generator receives ignition signal, rapid fire and produce a large amount of gas to airbag aeration.
Blast produces high pressure gas to airbag aeration; play a protective role; but explosion time explosive can produce some residues; the inflation of these residues to air bag has an impact, and even damages safety air bag, therefore; should by the residue elimination of explosive; therefore, usually installing gas filter in safety air bag, crosses the residue in blast process and filters.
Now in the art, conventional safety air bag filter of car mainly contains: steel plate stamping plate well strainer, knitted cover net pressing type filter, woven wire cloth roll formula filter, iron wire compression filter, above-mentioned safety air bag filter of car is because the restriction of Structure and energy own, the permeability of filter and filter effect are not good, explosive residue from the space of filter out, can damage safety air bag.
Therefore, improve from the material of the filter of safe automobile air bag and manufacture craft aspect now, obtain the safety air bag filter of car that permeability is good, filter effect is good.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide that a kind of structure is simple, permeability good, the safety air bag filter of car of good filtrability, and the production technology of this filter is simple.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of for the gas filter in safe automobile air bag, it guard member comprising filter core and be arranged on described filter core outside, described guard member is used for filter core described in an overfill protection, described filter core is at least one deck metal fiber felt strainer tube, the inside being arranged on described guard member is close to by described metal fiber felt strainer tube, described metal fiber felt strainer tube is fixedly connected with between described guard member, and described guard member is punching pipe or rhombus protective tube; Described metal fiber felt strainer tube comprises one or more structures following: metal fiber felt, individual layer protecting wire net metal fiber felt and double-deck protecting wire net metal fiber felt, described protecting wire net is arranged on the surface of described metal fiber felt.
Preferably, when described metal fiber felt strainer tube is metal fiber felt, become tubular structure by described metal fibre felt collar; When described metal fiber felt strainer tube is individual layer protecting wire net metal fiber felt, described protecting wire net is arranged on the one side being close to described guard member, and described metal fiber felt and described protecting wire net sinter and form.
Preferably, the grammes per square metre of described individual layer protecting wire net metal fiber felt is 200-1000g/ ㎡.
Preferably, the thickness of described individual layer protecting wire net metal fiber felt is 0.15-1.5mm.
Preferably, the fibre diameter of described individual layer protecting wire net metal fiber felt is 3-40 μm, described fiber be following in one or more: iron fiber, iron-chromium-aluminum, 201 stainless steel fibres, 304,304L stainless steel fibre, 430 stainless steel fibres, 316,316L stainless steel fibre.
Preferably, the bursting strength of described individual layer protecting wire net metal fiber felt is 815-1718l/mind ㎡.
Preferably, the bubbling point of described individual layer protecting wire net metal fiber felt is 245-1015Pa.
Preferably, described punching pipe outside is also provided with seal ring, and described seal ring set is located at the end of described punching pipe, is welded and fixed between described seal ring and described punching pipe.
Preferably, the preparation method for the gas filter in safe automobile air bag described in more than one, comprises the following steps:
A. metal fiber felt is prepared: first by the one or both sides of metal fiber felt sintering protecting wire net, be rolled into the metal fiber felt with protecting wire net, then metal fiber felt is cut out according to the size of filter element of gas filter, again rectangular metal fibre felt collar is become metal fiber felt strainer tube, and two ends are fixed together;
B. sheathed guard member: the outside of metal fiber felt strainer tube obtained in a will be located at according to the ready-made punching pipe box of gas filter size, and be welded and fixed together by between punching pipe and metal fiber felt strainer tube;
C. seal ring is added: the sheathed seal ring in outside of punching pipe obtained in b, the internal diameter of seal ring is equal with the external diameter of described punching pipe, and described seal ring set is located at the end of described punching pipe, and is welded and fixed between described seal ring and punching pipe.
Preferably, the described method preparing metal fiber felt, comprises the following steps:
The first step: the metal fibre being 3-40 μm diameter is put in airlaid nonwoven equipment, makes soft metal fiber felt;
Second step: the one side of the metal fiber felt in the first step or two sides are applied protecting wire net, sinters in high temperature furnace, makes individual layer protecting wire net metal fiber felt or double-deck protecting wire net metal fiber felt;
3rd step: roll-in: the roll-in in two rolling presss by the individual layer protecting wire net metal fiber felt in second step or double-deck protecting wire net metal fiber felt, and then be cut into the metal fiber felt filter material of complex filter size.
The invention has the beneficial effects as follows:
The rambling arrangement in hole of one, metal fiber felt of the present invention; when after explosive charge; blasting explosive granules bumps against after on metal fiber felt; to metal fiber felt, there is good barrier effect, the surface of metal fiber felt even if some nano sized particles is entered, but because fiber itself has thickness; particle can bump against above another layer of fiber; therefore particle is stopped, through metal fiber felt, good filtration cannot be played.
Two, the bursting strength of metal fiber felt of the present invention is 815-1718l/mind ㎡, and its permeability is good, improves it and is applied in performance in safety air bag filter of car.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the structural representation of the metal fiber felt strainer tube filter material in the embodiment of the present invention 1.
Fig. 4 is the structural representation of the metal fiber felt strainer tube filter material in the embodiment of the present invention 2.
Fig. 5 is the structural representation of the metal fiber felt strainer tube filter material in the embodiment of the present invention 3.
Wherein, 1-metal fiber felt strainer tube (filter core), 11-metal fiber felt, 12-protecting wire net, 2-punching pipe (guard member), 3-seal ring.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
As shown in Figure 1-2; disclose a kind of for the gas filter in safe automobile air bag in the present invention; it guard member 2 comprising filter core 1 and be arranged on above-mentioned filter core outside; above-mentioned guard member 2 is for an above-mentioned filter core 1 of overfill protection; guard member 1 can be punching pipe or rhombus protective tube, below for punching pipe.
Above-mentioned filter core 1 is at least one deck metal fiber felt strainer tube 1, and above-mentioned guard member is punching pipe 2, and the inside being arranged on above-mentioned punching pipe 2 is close to by above-mentioned metal fiber felt strainer tube 1, is fixedly connected with between above-mentioned metal fiber felt strainer tube 1 with above-mentioned punching pipe 2.
As shown in Figure 3; in the present embodiment; the filter material of above-mentioned metal fiber felt strainer tube 1 comprises metal fiber felt 11 and the protecting wire net 12 be arranged on metal fiber felt one side; and above-mentioned protecting wire net 12 is close to the one side of above-mentioned punching pipe 2; formed by high temperature sintering between above-mentioned metal fiber felt 11 and protecting wire net 12; above-mentioned protecting wire net is stainless steel, and also can be the protecting wire net of other metallic material, above-mentioned protecting wire net 12 be mainly for the protection of the metal fiber felt of inside.
The metal fibre of above-mentioned metal fiber felt comprises: iron fiber, iron-chromium-aluminum, 201 stainless steel fibres, and 304,304L stainless steel fibre, 430 stainless steel fibres, 316,316L stainless steel fibre.
The fixed form of welding is adopted between above-mentioned metal fiber felt strainer tube 1 and punching pipe 2, and in order to reinforce fixing between metallic fiber filter pipe 1 and punching pipe 2, seal ring 3 is provided with in the outer cover of above-mentioned punching pipe 2, above-mentioned seal ring 3 is fixed with above-mentioned punching pipe 2 in a welding manner, the internal diameter of above-mentioned seal ring 3 is equal with the external diameter of above-mentioned punching pipe 2, and namely above-mentioned seal ring 3 just blocks fixing above-mentioned punching pipe 2.
Above-mentioned seal ring 3 is set in the end of above-mentioned punching pipe 2, its Main Function can be stuck on the inwall of filter body when being and being arranged in automotive airbag by the filter in the present embodiment, it has positioning action, and by seal ring 3 and filter contact internal walls, plays good sealing function.
The density of the punching of above-mentioned punching pipe 2 and pore size, be not restricted here, is as the criterion with the design of actual filtration device.Above-mentioned punching pipe 2 mainly plays a protective role to metal fiber felt (metal nonwoven fabrics) 1.
Above-mentioned metal fiber felt strainer tube 1 is the tubular structure become by metal fibre felt collar, and above-mentioned metal fiber felt has three-dimensional structure, the hole disordered arrangements on above-mentioned metal fiber felt.Because; the rambling arrangement in hole of metal fiber felt; when after explosive charge, blasting explosive granules bumps against after on metal fiber felt, has good barrier effect to metal fiber felt; the surface of metal fiber felt even if some nano sized particles is entered; but because fiber itself has thickness, particle can bump against above another layer of fiber, is therefore stopped by particle; through metal fiber felt, good filtration cannot be played.
Prepare the above-mentioned method for the gas filter in safe automobile air bag, comprise the following steps:
A. metal fiber felt is prepared: first by the one side of metal fiber felt sintering protecting wire net, be rolled into the metal fiber felt with protecting wire net, then metal fiber felt is cut out according to the size of filter element of gas filter, again rectangular metal fibre felt collar is become metal fiber felt strainer tube, and two ends are fixed together;
B. sheathed guard member: the outside of metal fiber felt strainer tube obtained in a will be located at according to the ready-made punching pipe box of gas filter size, and be welded and fixed together by between punching pipe and metal fiber felt strainer tube;
C. seal ring is added: the sheathed seal ring in outside of punching pipe obtained in b, the internal diameter of seal ring is equal with the external diameter of described punching pipe, and described seal ring set is located at the end of described punching pipe, and is welded and fixed between described seal ring and punching pipe.
Concrete, the above-mentioned method preparing metal fiber felt, comprises the following steps:
The first step: the metal fibre being 3-40 μm diameter is put in airlaid nonwoven equipment, makes soft metal fiber felt;
Second step: the one side of the metal fiber felt in the first step is applied protecting wire net, sinters in high temperature furnace, makes individual layer protecting wire net metal fiber felt;
3rd step: roll-in: by the individual layer protecting wire net metal fiber felt roll-in in two rolling presss in second step, and then be cut into the metal fiber felt filter material of complex filter size.
In the present invention, above-mentioned metal fiber felt is individual layer protecting wire net metal fiber felt, and the grammes per square metre of above-mentioned individual layer protecting wire net metal fiber felt is 500g/ ㎡; The thickness of above-mentioned individual layer protecting wire net metal fiber felt is 1.0mm; The fibre diameter of above-mentioned individual layer protecting wire net metal fiber felt is 20 μm; The bursting strength of above-mentioned individual layer protecting wire net metal fiber felt is 1600l/mind ㎡; The bubbling point of above-mentioned individual layer protecting wire net metal fiber felt is 536Pa.
By the bursting strength of the present invention's above-mentioned individual layer protecting wire net metal fiber felt, can know that metal fiber felt of the present invention has good permeability.
Embodiment 2
As shown in Figure 1-2; disclose a kind of for the gas filter in safe automobile air bag in the present invention; it guard member 2 comprising filter core 1 and be arranged on above-mentioned filter core outside; above-mentioned guard member 2 is for an above-mentioned filter core 1 of overfill protection; guard member 1 can be punching pipe or rhombus protective tube, below for punching pipe.
Above-mentioned filter core 1 is at least one deck metal fiber felt strainer tube 1, and above-mentioned guard member is punching pipe 2, and the inside being arranged on above-mentioned punching pipe 2 is close to by above-mentioned metal fiber felt strainer tube 1, is fixedly connected with between above-mentioned metal fiber felt strainer tube 1 with above-mentioned punching pipe 2.
As shown in Figure 4; in the present embodiment; the filter material of above-mentioned metal fiber felt strainer tube 1 comprise metal fiber felt 11 and be arranged on metal fiber felt two-sided on protecting wire net 12; and above-mentioned protecting wire net 12 be close to metal fiber felt 11 two-sided on; formed by high temperature sintering between above-mentioned metal fiber felt 11 and protecting wire net 12; above-mentioned protecting wire net is stainless steel, and also can be the protecting wire net of other metallic material, above-mentioned protecting wire net 12 be mainly for the protection of the metal fiber felt of inside.
The fixed form of welding is adopted between above-mentioned metal fiber felt strainer tube 1 and punching pipe 2, and in order to reinforce fixing between metallic fiber filter pipe 1 and punching pipe 2, seal ring 3 is provided with in the outer cover of above-mentioned punching pipe 2, above-mentioned seal ring 3 is fixed with above-mentioned punching pipe 2 in a welding manner, the internal diameter of above-mentioned seal ring 3 is equal with the external diameter of above-mentioned punching pipe 2, and namely above-mentioned seal ring 3 just blocks fixing above-mentioned punching pipe 2.
Above-mentioned seal ring 3 is set in the end of above-mentioned punching pipe 2, its Main Function can be stuck on the inwall of filter body when being and being arranged in automotive airbag by the filter in the present embodiment, it has positioning action, and by seal ring 3 and filter contact internal walls, plays good sealing function.
The density of the punching of above-mentioned punching pipe 2 and pore size, be not restricted here, is as the criterion with the design of actual filtration device.Above-mentioned punching pipe 2 mainly plays a protective role to metal fiber felt (metal nonwoven fabrics) 1.
Above-mentioned metal fiber felt strainer tube 1 is the tubular structure become by metal fibre felt collar, and above-mentioned metal fiber felt has three-dimensional structure, the hole disordered arrangements on above-mentioned metal fiber felt.Because; the rambling arrangement in hole of metal fiber felt; when after explosive charge, blasting explosive granules bumps against after on metal fiber felt, has good barrier effect to metal fiber felt; the surface of metal fiber felt even if some nano sized particles is entered; but because fiber itself has thickness, particle can bump against above another layer of fiber, is therefore stopped by particle; through metal fiber felt, good filtration cannot be played.
Further, the metal fibre of above-mentioned metal fiber felt comprises: iron fiber, iron-chromium-aluminum, 201 stainless steel fibres, and 304,304L stainless steel fibre, 430 stainless steel fibres, 316,316L stainless steel fibre.
Prepare the above-mentioned method for the gas filter in safe automobile air bag, comprise the following steps:
A. metal fiber felt is prepared: first by the two-sided sintering protecting wire net of metal fiber felt, be rolled into the metal fiber felt with protecting wire net, then metal fiber felt is cut out according to the size of filter element of gas filter, again rectangular metal fibre felt collar is become metal fiber felt strainer tube, and two ends are fixed together;
B. sheathed guard member: the outside of metal fiber felt strainer tube obtained in a will be located at according to the ready-made punching pipe box of gas filter size, and be welded and fixed together by between punching pipe and metal fiber felt strainer tube;
C. seal ring is added: the sheathed seal ring in outside of punching pipe obtained in b, the internal diameter of seal ring is equal with the external diameter of described punching pipe, and described seal ring set is located at the end of described punching pipe, and is welded and fixed between described seal ring and punching pipe.
Concrete, the above-mentioned method preparing metal fiber felt, comprises the following steps:
The first step: the metal fibre being 3-40 μm diameter is put in airlaid nonwoven equipment, makes soft metal fiber felt;
Second step: the two-sided of the metal fiber felt in the first step is all applied protecting wire net, sinters in high temperature furnace, makes double-deck protecting wire net metal fiber felt;
3rd step: roll-in: by the double-deck protecting wire net metal fiber felt roll-in in two rolling presss in second step, and then be cut into the metal fiber felt filter material of complex filter size.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1, and the material of the metal fiber felt strainer tube 1 in embodiment 3 is simple metal fiber felt, does not add protective net structure, and remaining structure is identical with embodiment 1.
Embodiment 4-7
In embodiment 4-7, the structure of above-mentioned metal fiber felt is as the structure of the metal fiber felt in embodiment 1, it is one side protecting wire net metal fiber felt, its method for making is also described in copper embodiment 1, and fibre diameter, metal fiber felt thickness, filter material grammes per square metre, bubbling point and bursting strength that the one side protecting wire net metal fiber felt in embodiment 4-7 is corresponding are as shown in table 1.
The physical characteristic data table of table 1 filter filtration material (metal fiber felt)
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. one kind for the gas filter in safe automobile air bag, it guard member comprising filter core and be arranged on described filter core outside, described guard member is used for filter core described in an overfill protection, it is characterized in that, described filter core is at least one deck metal fiber felt strainer tube, the inside being arranged on described guard member is close to by described metal fiber felt strainer tube, and described metal fiber felt strainer tube is fixedly connected with between described guard member, and described guard member is punching pipe or rhombus protective tube; Described metal fiber felt strainer tube comprises one or more structures following: metal fiber felt, individual layer protecting wire net metal fiber felt and double-deck protecting wire net metal fiber felt, described protecting wire net is arranged on the surface of described metal fiber felt.
2. according to claim 1ly to it is characterized in that for the gas filter in safe automobile air bag, when described metal fiber felt strainer tube is metal fiber felt, become tubular structure by described metal fibre felt collar; When described metal fiber felt strainer tube is individual layer protecting wire net metal fiber felt, described protecting wire net is arranged on the one side being close to described guard member, and described metal fiber felt and described protecting wire net sinter and form.
3. according to claim 2ly it is characterized in that for the gas filter in safe automobile air bag, the grammes per square metre of described individual layer protecting wire net metal fiber felt is 200-1000g/ ㎡.
4. according to claim 3ly it is characterized in that for the gas filter in safe automobile air bag, the thickness of described individual layer protecting wire net metal fiber felt is 0.15-1.5mm.
5. according to claim 4 for the gas filter in safe automobile air bag, it is characterized in that, the fibre diameter of described individual layer protecting wire net metal fiber felt is 3-40 μm, described fiber be following in one or more: iron fiber, iron-chromium-aluminum, 201 stainless steel fibres, 304,304L stainless steel fibre, 430 stainless steel fibres, 316,316L stainless steel fibre.
6. according to claim 5ly it is characterized in that for the gas filter in safe automobile air bag, the bursting strength of described individual layer protecting wire net metal fiber felt is 815-1718l/mind ㎡.
7. according to claim 6ly it is characterized in that for the gas filter in safe automobile air bag, the bubbling point of described individual layer protecting wire net metal fiber felt is 245-1015Pa.
8. according to claim 1ly it is characterized in that for the gas filter in safe automobile air bag, described punching pipe outside is also provided with seal ring, and described seal ring set is located at the end of described punching pipe, is welded and fixed between described seal ring and described punching pipe.
9. the preparation method for the gas filter in safe automobile air bag described in claim 1-8 any one, is characterized in that, comprise the following steps:
A. metal fiber felt is prepared: first by the one or both sides of metal fiber felt sintering protecting wire net, be rolled into the metal fiber felt with protecting wire net, then metal fiber felt is cut out according to the size of filter element of gas filter, again rectangular metal fibre felt collar is become metal fiber felt strainer tube, and two ends are fixed together;
B. sheathed guard member: the outside of metal fiber felt strainer tube obtained in a will be located at according to the ready-made punching pipe box of gas filter size, and be welded and fixed together by between punching pipe and metal fiber felt strainer tube;
C. seal ring is added: the sheathed seal ring in outside of punching pipe obtained in b, the internal diameter of seal ring is equal with the external diameter of described punching pipe, and described seal ring set is located at the end of described punching pipe, and is welded and fixed between described seal ring and punching pipe.
10. the preparation method for the gas filter in safe automobile air bag according to claim 9, is characterized in that, the described method preparing metal fiber felt, comprises the following steps:
The first step: the metal fibre being 3-40 μm diameter is put in airlaid nonwoven equipment, makes soft metal fiber felt;
Second step: the one side of the metal fiber felt in the first step or two sides are applied protecting wire net, sinters in high temperature furnace, makes individual layer protecting wire net metal fiber felt or double-deck protecting wire net metal fiber felt;
3rd step: roll-in: the roll-in in two rolling presss by the individual layer protecting wire net metal fiber felt in second step or double-deck protecting wire net metal fiber felt, and then be cut into the metal fiber felt filter material of complex filter size.
CN201510050167.3A 2015-01-30 2015-01-30 Gas filter used in automobile safety air bag and manufacturing method thereof Pending CN104608735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510050167.3A CN104608735A (en) 2015-01-30 2015-01-30 Gas filter used in automobile safety air bag and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510050167.3A CN104608735A (en) 2015-01-30 2015-01-30 Gas filter used in automobile safety air bag and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN104608735A true CN104608735A (en) 2015-05-13

Family

ID=53143457

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510050167.3A Pending CN104608735A (en) 2015-01-30 2015-01-30 Gas filter used in automobile safety air bag and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN104608735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750555A (en) * 2016-05-06 2016-07-13 新乡市利尔过滤技术有限公司 Preparation method of iron-chromium-aluminum fiber combustion sheet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552706A1 (en) * 1992-01-23 1993-07-28 Dynamit Nobel Aktiengesellschaft Filtration device for gas stream filtration
US5658517A (en) * 1995-09-18 1997-08-19 Morton International, Inc. Method of forming an automotive air bag filter with support member
CN101413071A (en) * 2008-12-05 2009-04-22 西北有色金属研究院 Metal polyporous material with gradient pore structure and preparation thereof
CN101607157A (en) * 2009-04-17 2009-12-23 河北小蜜蜂工具集团有限公司 A kind of manufacture method of iron-chromium-aluminum metal fiber filter material
CN103170186A (en) * 2011-12-26 2013-06-26 昆山海普过滤分离科技有限公司 Sintered metal fiber filtering material and preparation method thereof
CN103801156A (en) * 2014-03-05 2014-05-21 哈尔滨工业大学(威海) Multi-layer metal fiber sintered felt
CN204472746U (en) * 2015-01-30 2015-07-15 苏州海普过滤分离科技有限公司 For the gas filter in safe automobile air bag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552706A1 (en) * 1992-01-23 1993-07-28 Dynamit Nobel Aktiengesellschaft Filtration device for gas stream filtration
US5658517A (en) * 1995-09-18 1997-08-19 Morton International, Inc. Method of forming an automotive air bag filter with support member
CN101413071A (en) * 2008-12-05 2009-04-22 西北有色金属研究院 Metal polyporous material with gradient pore structure and preparation thereof
CN101607157A (en) * 2009-04-17 2009-12-23 河北小蜜蜂工具集团有限公司 A kind of manufacture method of iron-chromium-aluminum metal fiber filter material
CN103170186A (en) * 2011-12-26 2013-06-26 昆山海普过滤分离科技有限公司 Sintered metal fiber filtering material and preparation method thereof
CN103801156A (en) * 2014-03-05 2014-05-21 哈尔滨工业大学(威海) Multi-layer metal fiber sintered felt
CN204472746U (en) * 2015-01-30 2015-07-15 苏州海普过滤分离科技有限公司 For the gas filter in safe automobile air bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750555A (en) * 2016-05-06 2016-07-13 新乡市利尔过滤技术有限公司 Preparation method of iron-chromium-aluminum fiber combustion sheet

Similar Documents

Publication Publication Date Title
US7435280B2 (en) Wire mesh filter with improved hoop strength
US7763092B2 (en) Filter for an air bag gas generator
JP2554812B2 (en) Method of Assembling Inflator and Filter Assembly for Airbag
US7452397B2 (en) Filtration member for inflator and method of manufacturing the same
CN105283357A (en) Gas generator
US6277166B2 (en) Filter with stiffening ribs
JPH1143007A (en) Gas generator and its filter
CN204472746U (en) For the gas filter in safe automobile air bag
CN104608735A (en) Gas filter used in automobile safety air bag and manufacturing method thereof
JP2001301561A (en) Filter for inflator
WO1999014078A2 (en) Non-blocking filter
JP6701040B2 (en) Gas generator filter and gas generator
JPH0367723B2 (en)
JP2938755B2 (en) Filter for inflator
JP5134390B2 (en) Molded body for filter
USRE39611E1 (en) Filter with stiffening ribs
JPH042542A (en) Filter for air bag gas generator
KR20150134134A (en) Metal mesh filter and a method of manufacturing
JP2003080012A (en) Method for manufacturing filter for inflator
JP5129616B2 (en) Filter and filter body
Mullins et al. and Wolfgang Heikamp2 1Curtin University, Perth, WA, Australia, 2Raschig GmbH, Ludwigshafen, Germany
JPH09276636A (en) Metal filter and its production
CN108177628B (en) Safety airbag retaining bracket with filtering function
JP4814832B2 (en) Gas generator filter material and gas generator
JPH042541A (en) Filter for air bag gas generator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150513