CN114653137A - Anti-oxidation glass fiber needled felt - Google Patents

Anti-oxidation glass fiber needled felt Download PDF

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Publication number
CN114653137A
CN114653137A CN202210308034.1A CN202210308034A CN114653137A CN 114653137 A CN114653137 A CN 114653137A CN 202210308034 A CN202210308034 A CN 202210308034A CN 114653137 A CN114653137 A CN 114653137A
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CN
China
Prior art keywords
layer
cloth
glass fiber
fiber
fixing cloth
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Pending
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CN202210308034.1A
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Chinese (zh)
Inventor
朱进
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Jiangsu Qinghu Industrial Co ltd
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Jiangsu Qinghu Industrial Co ltd
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Application filed by Jiangsu Qinghu Industrial Co ltd filed Critical Jiangsu Qinghu Industrial Co ltd
Priority to CN202210308034.1A priority Critical patent/CN114653137A/en
Publication of CN114653137A publication Critical patent/CN114653137A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2041—Metallic material the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2065—Carbonaceous material the material being fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Filtering Materials (AREA)

Abstract

The invention discloses an antioxidant glass fiber needled felt, which comprises: the first fixing cloth is provided with a concave part and an inserting hole respectively; the second fixing cloth and the first fixing cloth are pressed and molded, a protruding part is arranged at the lower end of the second fixing cloth and is positioned in the concave part, and the surface of the protruding part is a rough surface; the reinforcing ribs are arranged inside the protruding parts and are steel wire reinforcing ribs; the guide fiber block is arranged on the lower surface of the second fixing cloth and is matched with the insertion hole; the hot melt adhesive layers are respectively arranged on the opposite surfaces of the first fixed cloth and the second fixed cloth. The anti-oxidation glass fiber needled felt provided by the invention has the advantages of good sound absorption, shock absorption, corrosion resistance, insulation, high temperature resistance and flame retardance, high porosity, small gas filtration resistance, large filtration wind speed, high dust removal efficiency, bending resistance, wear resistance and stable size.

Description

Anti-oxidation glass fiber needled felt
Technical Field
The invention relates to the technical field of needled felts, in particular to an antioxidant glass fiber needled felt.
Background
Today that the industrialization process is continuously promoted, the requirement for the filter material is also continuously promoted, the needled felt in the market is various, years of practice finds that the needled felt is easy to oxidize due to exposure to high temperature and air, and the structural material is soft and is worn, so that the needled felt is fast in consumption, the manufacturing cost is increased, manpower and material resources are wasted, and therefore the anti-oxidation needled felt which is strong in oxidation resistance, stable in structure, good in filtering effect and long in service life is urgently needed
Disclosure of Invention
The invention aims to provide an anti-oxidation glass fiber needled felt, which aims to solve the problems that the durability of oxidation resistance cannot be ensured and the stability of the whole structure is poor in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an oxidation resistant glass fiber needled felt comprising:
the first fixing cloth is provided with a concave part and an inserting hole respectively;
the second fixing cloth and the first fixing cloth are pressed and molded, a protruding part is arranged at the lower end of the second fixing cloth, the protruding part is positioned in the concave part, and the surface of the protruding part is a rough surface;
the reinforcing ribs are arranged inside the protruding parts and are steel wire reinforcing ribs;
the guide fiber block is arranged on the lower surface of the second fixing cloth and is matched with the insertion hole;
the hot melt adhesive layers are arranged on the opposite surfaces of the first fixed cloth and the second fixed cloth respectively.
Preferably, the first fixing cloth includes:
a first scrim layer, the first scrim layer being a PPS fiber layer;
the PTFE and PPS mixed layer arranged on the surface of the first base cloth layer is connected with the first base cloth layer through a needle punching method, the protective layer is arranged on the lower surface of the first base cloth layer, the carbon fiber layer is bonded on the upper surface of the PTFE and PPS mixed layer, the glass fiber layer is bonded on the upper surface of the carbon fiber layer, and the aluminum silicate fiber layer is arranged on the upper surface of the glass fiber layer.
Preferably, the first fixing cloth further includes:
a lower composite layer disposed on a lower surface of the first scrim layer, the lower composite layer comprising:
the carbon nanofiber-based microporous membrane comprises a nanofiber layer and a microporous membrane, wherein the nanofiber layer is a fiber net formed by carbon nanofibers which are arranged in a criss-cross mode, and the microporous membrane is a biaxially-stretched expanded polytetrafluoroethylene membrane.
Preferably, the second fixing cloth includes:
the dust-catching composite layer is arranged between the dust-catching composite layer and the filter bottom composite layer; the second base cloth layer comprises an interwoven reinforced glass fiber layer, and an anti-oxidation material is coated on the surface of the reinforced glass fiber layer.
Preferably, the dust facing composite layer comprises:
the stainless steel fiber layer is arranged below the first antioxidation layer.
Preferably, the filter bottom composite layer includes:
inorganic fiber layer, aramid fiber layer and second antioxidation layer, inorganic fiber layer locate second antioxidation layer top, aramid fiber layer locate inorganic fiber layer with between the second antioxidation layer.
Preferably, the filter bottom composite layer further comprises:
fine polyphenylene sulfide fibers interwoven between the inorganic fiber layer and the aramid fiber layer.
Preferably, the glass fiber monofilaments are inserted in the first fixing cloth and the second fixing cloth in a disordered and staggered manner.
Preferably, the top end of the guide fiber block is provided with a hot melt adhesive block.
In summary, due to the adoption of the technology, the invention has the beneficial effects that:
according to the invention, the stainless steel fiber layer is adopted to make up the brittleness of the inorganic fiber layer, so that the high flame retardant property and corrosion resistance are ensured, the oxidation resistance and the stability of the whole structure are ensured, and the problems that the durability of oxidation resistance cannot be ensured and the stability of the whole structure is poor in the prior art are effectively solved;
on the basis of the beneficial effects, the carbon fiber layer is formed by the carbon fiber cloth, the product has the characteristics of light weight, high strength, high modulus, high temperature resistance and corrosion resistance, and has excellent thermal conductivity, excellent thermal stability and excellent chemical stability, and finished products made of the carbon fibers have excellent physical and chemical properties;
on the basis of the beneficial effects, the microporous membrane is arranged, and the expanded polytetrafluoroethylene microporous membrane subjected to biaxial stretching becomes a channel for air circulation in the base cloth layer, so that the air permeability of the glass needled felt is improved, and the flexibility of the needled felt is also ensured;
on the basis of the beneficial effects, the filter bottom composite layer is made of fine polyphenylene sulfide fibers, and the fine dust facing composite layer can effectively filter dust and reduce the emission of dust;
on the basis of the beneficial effects, the glass fiber monofilaments are inserted into the first fixing cloth and the second fixing cloth in a disordered and staggered manner, are of an unoriented three-dimensional microporous structure, are small in gaps and large in gap rule, have good sound absorption, shock absorption, corrosion resistance, insulation, high temperature resistance and flame retardance, and are high in porosity, small in gas filtering resistance, large in filtering wind speed, high in dust removal efficiency, bending-resistant, wear-resistant and stable in size.
Drawings
FIG. 1 is a schematic structural view of an antioxidant glass fiber needled felt of the present invention;
FIG. 2 is a schematic view of the structure of the protrusion according to the present invention;
FIG. 3 is a schematic structural view of a first fastening cloth according to the present invention;
fig. 4 is a schematic structural view of a second fixing cloth according to the present invention.
In the figure: 1. a first fixing cloth; 11. a first base fabric layer; 12. a mixed layer of PTFE and PPS; 13. a protective layer; 14. a carbon fiber layer; 15. a glass fiber layer; 16. a layer of aluminium silicate fibres; 17. a lower composite layer; 18. a nanofiber layer; 19. a microporous membrane; 2. a recessed portion; 3. a jack; 4. a second fixing cloth; 41. a dust facing composite layer; 411. a stainless steel fiber layer; 412. a first oxidation resistant layer; 42. a second base fabric layer; 43. a filter bottom composite layer; 431. an inorganic fiber layer; 432. an aramid fiber layer; 433. a second antioxidation layer; 44. a reinforcing glass fiber layer; 5. a boss portion; 6. reinforcing ribs; 7. a guide fiber block; 8. a hot melt adhesive layer; 9. and (4) a hot melt adhesive block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides an anti-oxidation glass fiber needled felt as shown in figures 1-2, which comprises:
the fixing device comprises a first fixing cloth 1, wherein a concave part 2 and an inserting hole 3 are respectively arranged on the first fixing cloth 1;
as shown in fig. 3, specifically, the first fixing cloth 1 includes:
the first base fabric layer 11, wherein the first base fabric layer 11 is a PPS fiber layer;
the PTFE and PPS mixed layer 12 is arranged on the surface of the first base cloth layer 11, the PTFE and PPS mixed layer 12 is connected with the first base cloth layer 11 through a needle punching method, a protective layer 13 is arranged on the lower surface of the first base cloth layer 11, a carbon fiber layer 14 is adhered to the upper surface of the PTFE and PPS mixed layer 12, a glass fiber layer 15 is adhered to the upper surface of the carbon fiber layer 14, and an aluminum silicate fiber layer 16 is arranged on the upper surface of the glass fiber layer 15; through the arranged carbon fiber layer 14, the layer is made of carbon fiber cloth, the product has the characteristics of light weight, high strength, high modulus, high temperature resistance and corrosion resistance, and has excellent heat conductivity, thermal stability and chemical stability, and finished products made of carbon fibers have excellent physical and chemical properties;
as shown in fig. 3, further, the first fixing cloth 1 further includes:
a lower composite layer 17 disposed on a lower surface of the first base fabric layer 11, the lower composite layer 17 including:
the nano-fiber layer 18 and the microporous membrane 19, the nano-fiber layer is a fiber net formed by arranging carbon nano-fibers in a criss-cross mode, and the microporous membrane is a biaxially stretched expanded polytetrafluoroethylene membrane;
the second fixing cloth 4 is pressed and molded with the first fixing cloth 1, the lower end of the second fixing cloth 4 is provided with a convex part 5, the convex part 5 is positioned in the concave part 2, and the surface of the convex part 5 is a rough surface;
as shown in fig. 4, specifically, the second fixing cloth 4 includes:
the dust-catching composite layer 41, the second base cloth layer 42 and the filter bottom composite layer 43 are included, and the second base cloth layer 42 is arranged between the dust-catching composite layer 41 and the filter bottom composite layer 43; the second base cloth layer 42 comprises a reinforced glass fiber layer 44 which is interwoven, and the surface of the reinforced glass fiber layer 44 is coated with an anti-oxidation material;
further, the dust facing composite layer 41 includes:
a stainless steel fiber layer 411 and a first oxidation resistant layer 412, wherein the stainless steel fiber layer 411 is arranged below the first oxidation resistant layer 412; by adopting the stainless steel fiber layer 411, the brittleness of the inorganic fiber layer is compensated, so that the high flame retardant property and corrosion resistance are ensured, the oxidation resistance and the stability of the whole structure are ensured, and the problems that the durability of oxidation resistance cannot be ensured and the stability of the whole structure is poor in the prior art are effectively solved;
further, the filter bottom composite layer 43 includes:
the anti-oxidation coating comprises an inorganic fiber layer 431, an aramid fiber layer 432 and a second anti-oxidation layer 433, wherein the inorganic fiber layer 431 is arranged above the second anti-oxidation layer 433, and the aramid fiber layer 432 is arranged between the inorganic fiber layer 431 and the second anti-oxidation layer 433;
the filter bottom composite layer 43 further includes:
fine polyphenylene sulfide fibers are interwoven between the inorganic fiber layer 431 and the aramid fiber layer 432, and the filter bottom composite layer 43 comprises the fine polyphenylene sulfide fibers, so that the filter surface of the fine dust facing composite layer can effectively filter dust, and the emission of the dust is reduced;
the fine polyphenylene sulfide fiber is reinforced by an array embedding method to form the fine polyphenylene sulfide fiber, and the preparation method comprises the following steps:
1) the polyphenylene sulfide short fiber is subjected to opening and carding by lapping, and lapping is carried out on a lapping machine; further, the diameter of the polyphenylene sulfide short fiber net is 12-50um, the length of the fiber is 38-76mm, and the gram weight of the polyphenylene sulfide short fiber net is 150-800g/m2；
2) Spraying polyphenylene sulfide resin by using melt-blowing equipment to form a polyphenylene sulfide melt-blown fiber net;
further, the polyphenylene sulfide melt-blown fiber net has the fiber diameter of 0.8-10um and the gram weight of 50-400g/m2；
3) The composite treatment is carried out, the prepared polyphenylene sulfide melt-blown fiber net is laid on one or two surfaces of the prepared polyphenylene sulfide short fiber net, the polyphenylene sulfide melt-blown fiber net is embedded into the polyphenylene sulfide short fiber net in a lattice form by adopting array type needling or spunlace equipment, and a melt-blown net surface is formed on the surface of the polyphenylene sulfide short fiber net to obtain fine polyphenylene sulfide fibers;
further, the laying is one of an online laying mode or an offline laying mode; the online laying of the polyphenylene sulfide melt-blown fiber net comprises that the melt-blown fiber net directly falls on one surface of a polyphenylene sulfide short fiber net when the polyphenylene sulfide melt-blown fiber net is prepared;
the prepared polyphenylene sulfide melt-blown fiber net is reeled and then unreeled and laid on one surface of the polyphenylene sulfide short fiber net;
4) carrying out heat setting treatment on the obtained polyphenylene sulfide composite filter material by adopting a temperature programming process;
further, the temperature programming process comprises the steps of treating at 90-94 ℃ for 5 minutes, then treating at 110-120 ℃ for 3 minutes, and finally treating at 160-180 ℃ for 2 minutes;
5) hot rolling the melt-blown mesh surface of the polyphenylene sulfide composite filter material obtained after heat setting treatment by using a hot roller for surface finishing treatment;
furthermore, the hot rolling temperature is 190-280 ℃, and the hot rolling time is 1-40 seconds.
The reinforcing ribs 6 are arranged in the protruding parts 5, and the reinforcing ribs 6 are steel wire reinforcing ribs;
the guide fiber block 7 is arranged on the lower surface of the second fixing cloth 4, the guide fiber block 7 is matched with the jack 3, and the top end of the guide fiber block 7 is provided with a hot melt adhesive block 9;
the hot melt adhesive layers 8 are respectively arranged on the opposite surfaces of the first fixing cloth 1 and the second fixing cloth 4;
glass fiber monofilaments are inserted in the first fixing cloth 1 and the second fixing cloth 4 in a disordered and staggered mode, the glass fiber monofilaments are in an unoriented three-dimensional microporous structure, are small in gaps and large in gaps, have good sound absorption, shock absorption, corrosion resistance, insulation, high temperature resistance and flame retardance, and are high in porosity, small in gas filtering resistance, large in filtering air speed and high in dust removal efficiency, and meanwhile have bending resistance, wear resistance and stable size.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (9)

1. An oxidation resistant glass fiber needled felt, comprising:
the fixing device comprises a first fixing cloth (1), wherein a concave part (2) and an inserting hole (3) are respectively arranged on the first fixing cloth (1);
the second fixing cloth (4) and the first fixing cloth (1) are pressed and molded, a protruding portion (5) is arranged at the lower end of the second fixing cloth (4), the protruding portion (5) is located inside the concave portion (2), and the surface of the protruding portion (5) is a rough surface;
the reinforcing ribs (6) are arranged in the protruding portions (5), and the reinforcing ribs (6) are steel wire reinforcing ribs;
the guide fiber block (7) is arranged on the lower surface of the second fixing cloth (4), and the guide fiber block (7) is matched with the insertion hole (3);
and the hot melt adhesive layers (8) are respectively arranged on the opposite surfaces of the first fixed cloth (1) and the second fixed cloth (4).
2. The oxidation-resistant glass fiber needled felt according to claim 1, characterized in that: the first fixing cloth (1) includes:
a first scrim layer (11), said first scrim layer (11) being a PPS fiber layer;
the PTFE and PPS that set up on first base cloth layer (11) surface mix layer (12), PTFE mixes layer (12) with PPS and is connected with first base cloth layer (11) through the needle-punching method, first base cloth layer (11) lower surface is equipped with protective layer (13), PTFE mixes layer (12) upper surface with PPS and glues even carbon fiber layer (14), carbon fiber layer (14) upper surface glues even glass fiber layer (15), glass fiber layer (15) upper surface is equipped with aluminium silicate fiber layer (16).
3. The anti-oxidant glass fiber needled felt according to claim 2, characterized in that: the first fixing cloth (1) further comprises:
a lower composite layer (17) disposed on a lower surface of the first base fabric layer (11), the lower composite layer (17) comprising:
the carbon nanofiber membrane comprises a nanofiber layer (18) and a microporous membrane (19), wherein the nanofiber layer is a fiber net formed by carbon nanofibers which are arranged in a criss-cross mode, and the microporous membrane is a biaxially-stretched expanded polytetrafluoroethylene membrane.
4. The anti-oxidant glass fiber needled felt according to claim 1, characterized in that: the second fixing cloth (4) includes:
the dust-collecting composite layer comprises a dust-collecting composite layer (41), a second base cloth layer (42) and a filter bottom composite layer (43), wherein the second base cloth layer (42) is arranged between the dust-collecting composite layer (41) and the filter bottom composite layer (43); the second base cloth layer (42) comprises a reinforced glass fiber layer (44) which is interwoven, and the surface of the reinforced glass fiber layer (44) is coated with an oxidation resistant material.
5. The anti-oxidant glass fiber needled felt according to claim 4, characterized in that: the dust-facing composite layer (41) comprises:
a stainless steel fiber layer (411) and a first oxidation resistant layer (412), the stainless steel fiber layer (411) is arranged below the first oxidation resistant layer (412).
6. The anti-oxidant glass fiber needled felt according to claim 4, characterized in that: the filter bottom composite layer (43) includes:
the anti-oxidation coating comprises an inorganic fiber layer (431), an aramid fiber layer (432) and a second anti-oxidation layer (433), wherein the inorganic fiber layer (431) is arranged above the second anti-oxidation layer (433), and the aramid fiber layer (432) is arranged between the inorganic fiber layer (431) and the second anti-oxidation layer (433).
7. The anti-oxidant glass fiber needled felt according to claim 6, characterized in that: the filter bottom composite layer (43) further comprises:
fine polyphenylene sulfide fibers interwoven between the inorganic fiber layer (431) and the aramid fiber layer (432).
8. The anti-oxidant glass fiber needled felt according to claim 1, characterized in that: glass fiber monofilaments are inserted into the first fixing cloth (1) and the second fixing cloth (4) in a disordered and staggered mode.
9. The anti-oxidant glass fiber needled felt according to claim 1, characterized in that: the top end of the guide fiber block (7) is provided with a hot melt adhesive block (9).
CN202210308034.1A 2022-03-26 2022-03-26 Anti-oxidation glass fiber needled felt Pending CN114653137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210308034.1A CN114653137A (en) 2022-03-26 2022-03-26 Anti-oxidation glass fiber needled felt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210308034.1A CN114653137A (en) 2022-03-26 2022-03-26 Anti-oxidation glass fiber needled felt

Publications (1)

Publication Number Publication Date
CN114653137A true CN114653137A (en) 2022-06-24

Family

ID=82034318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210308034.1A Pending CN114653137A (en) 2022-03-26 2022-03-26 Anti-oxidation glass fiber needled felt

Country Status (1)

Country Link
CN (1) CN114653137A (en)

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