CN112458587A - Method for manufacturing core-spun yarn for asbestos-free brake band - Google Patents
Method for manufacturing core-spun yarn for asbestos-free brake band Download PDFInfo
- Publication number
- CN112458587A CN112458587A CN202011467405.8A CN202011467405A CN112458587A CN 112458587 A CN112458587 A CN 112458587A CN 202011467405 A CN202011467405 A CN 202011467405A CN 112458587 A CN112458587 A CN 112458587A
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- glass fiber
- yarn
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- yarns
- twisting
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/12—Threads containing metallic filaments or strips
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/16—Yarns or threads made from mineral substances
- D02G3/18—Yarns or threads made from mineral substances from glass or the like
- D02G3/182—Yarns or threads made from mineral substances from glass or the like the glass being present only in part of the structure
- D02G3/185—Yarns or threads made from mineral substances from glass or the like the glass being present only in part of the structure in the core
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/20—Metallic fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention provides a method for manufacturing core-spun yarns for non-asbestos brake bands, which comprises the steps of twisting dealkalized glass fibers and brass wires in an S direction by a high-speed twisting machine, wherein the twisting coefficient is below 28 per meter, mixing acrylic fibers and viscose fibers by an air friction spinning machine, and uniformly winding the mixture on the surface of the twisted yarns to manufacture rope-shaped yarns with core-spun structures, wherein the rope-shaped yarns form a reinforced base material applied to the non-asbestos brake bands.
Description
Technical Field
The invention relates to the technical field of brake bands, in particular to a manufacturing method of core-spun yarns for an asbestos-free brake band.
Background
Asbestos brake tapes have been abandoned since long because of the harmfulness of asbestos to human health. Existing brake bands have begun to use other fibers, such as glass fibers, as an inner component material of the brake band instead of asbestos. The existing monomer glass fiber has lower tensile strength, and in order to overcome the defect, the covering yarn containing the glass fiber is usually used as a base material of the brake band.
For example, Chinese patent document (publication number: CN 109234880A) discloses a high silica glass fiber blended core-spun yarn applied to a ship brake belt, which comprises a core yarn and an outer cladding; the core yarn comprises glass fibers and metal fibers; the outer cladding comprises acrylic fibers, viscose fibers, aramid fibers and high silica glass fibers. The core-spun yarn of the invention uses the high silica glass fiber to replace the carbon fiber in the traditional process, thereby greatly reducing the material cost of the base material, and utilizing the instantaneous high temperature resistance of the high silica glass fiber to solve the problem of instantaneous high temperature resistance of the base material medium.
The core-spun yarn containing the glass fiber uses the medium-alkali glass fiber and the brass wire as inner cores, the brass wire and the medium-alkali glass fiber are arranged side by side, and the plastic is used as an outer layer to wrap the medium-alkali glass fiber and the brass wire. The structure improves the tensile strength of the brake band, but the brass wires and the medium-alkali glass fibers are simply arranged side by side. The setting mode only utilizes the characteristic that the ductility of the brass wire is strong to solve the problem that the tensile capacity of the glass fiber is not enough, and when the core-spun yarn is stretched, the brass wire can extend in one step firstly to protect the glass fiber. However, the brass wire is extended, and the length of the brass wire is increased after the brass wire is used for a period of time, so that the length of the brass wire is inconsistent with that of the glass fiber, the brass wire cannot help the glass fiber to share the stress, the torque of the glass fiber of the core-spun yarn is increased after the core-spun yarn is used for a long time, and finally the glass fiber is broken, so that the service life of the brake band is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a covering yarn with high tensile strength and long service life.
The technical scheme for solving the technical problem is as follows: a method of making a core spun yarn for an asbestos-free brake tape, comprising: step S1, firstly, sending the glass liquid to a porous bushing for high-speed extrusion, cooling the extruded glass liquid into glass fiber raw yarns through a sprayer, and then winding the generated glass fiber raw yarns on a spindle; step S2, putting the spindle and the glass fiber raw yarn into an acid leaching tank, then adding acid with a certain concentration into the tank, heating the acid to the required temperature, keeping the temperature until the acid leaching is completed, and then putting the glass fiber raw yarn into a water tank to be cleaned until the cleaning is completed to form alkali-free glass fiber yarn; step S3, coating the surface of the alkali-free glass fiber yarn with an oiling device, separately drawing the alkali-free glass fiber yarn after coating through a buncher, and finally bundling the alkali-free glass fiber after separately drawing through the buncher; step S4, conveying the alkali-free glass fibers formed by bundling to a high-speed twisting machine, and twisting the alkali-free glass fibers and the brass wires into yarns by the high-speed twisting machine; s5, uniformly winding leather yarns formed by mixing acrylic fibers and viscose fibers on the surface of the twisted yarns through an air friction spinning machine to form rope-shaped yarns of a core-spun structure, wherein the rope-shaped yarns form a reinforcing base material applied to the asbestos-free brake band.
The alkali-free glass fiber is superior to medium alkali glass fiber in chemical stability and folding resistance, is not easy to be broken, and can ensure that the tensile property of the core-spun yarn is better. The alkali-free glass fiber and the brass wire are twisted together, so that the alkali-free glass fiber and the brass wire are stressed together, the situation that the alkali-free glass fiber is stressed independently is avoided, and the probability that the alkali-free glass fiber is broken by pulling is further reduced.
Furthermore, the twist coefficient of the yarn in the step S4 is 28 twists per meter, the twisting causes the brass wires and the alkali-free glass fibers to be tightly held together, and the brass wires and the alkali-free glass fibers are tightened with each other due to the multiple twisting, so that the yarn in the inner core can be quickly restored after the external force is removed.
Furthermore, the twisting direction of the high-speed twisting machine for yarns in the step S4 is Z-shaped, the self-twisting direction of the alkali-free glass fiber is S-shaped, and the self-twisting degree of the alkali-free glass fiber is 28 twists per meter. The alkali-free glass fiber yarns are bundled and have a certain twisting direction, so that the same twisting direction and twist degree can be kept between the brass wires and the alkali-free glass fiber yarns, the bonding degree between the brass wires and the alkali-free glass fiber yarns is increased, and the whole alkali-free glass fiber yarns can be uniformly stressed.
Further, the high-speed twisting machine described in step S4 twists the glass fiber yarn and the brass wire using a pre-twisting method. And arranging a pre-twisting device on the high-speed twisting machine or between the high-speed twisting machine and the concentrator independently, and twisting the alkali-free glass fiber and the brass wire by the pre-twisting device.
Further, the step S1 is to generate glass fiber raw yarns of 200Tex to 300Tex, and the diameter of each filament is less than or equal to 13 microns. The finer the glass fiber, the higher the strength, and after the diameter of the glass fiber is less than 13 microns, the cost of thinning and the performance return are not in direct proportion, the economy is greatly reduced, and the thicker the glass fiber, the higher the production efficiency is.
Further, the brass wire had a cross-sectional diameter of 0.12mm, and contained 62% by weight of copper and 38% by weight of zinc.
Further, the brass wire had a cross-sectional diameter of 0.15mm, and contained 65% by weight of copper and 35% by weight of zinc.
Through continuous experiments, the brass wires with the two specifications can form a better matching effect with the alkali-free glass fiber under the condition of 28 twists.
Compared with the prior art, the alkali-free glass fiber is adopted as the inner core material to be twisted with the brass wire, and has better mechanical property than medium alkali glass fiber. The twisted yarn can not be curled, and the tensile strength of the core yarn can be effectively improved compared with the glass fiber direct yarn which is not twisted, so that the integral tensile strength of the yarn is improved. The core-spun yarn has strong folding resistance, and can effectively prolong the service life of the brake band as a base material.
Detailed Description
The invention provides a manufacturing process of a core-spun yarn for an asbestos-free brake band. The preparation process of the alkali-free glass fiber comprises the following steps: 13 parts of vinyl cyanide monomer, 18 parts of AES resin, 9 parts of asbestos segments, 10 parts of lauric acid, 7 parts of sodium tripolyphosphate, 6 parts of glass fiber mineral powder and 12 parts of ethyltrimethoxysilane are placed in a stirrer to be stirred uniformly (all parts are parts by weight), then the mixture is placed in a muffle furnace to generate glass liquid, then the glass liquid is sent to a porous bushing plate with the aperture of 0.013 mm to be extruded at high speed, and glass fiber raw yarn with the filament diameter of 200 Tex-300 Tex is generated, wherein the filament diameter of the glass fiber raw yarn is less than or equal to 13 microns. And then cooled by a sprayer to form glass fiber raw yarn.
And then winding the glass fiber raw yarn on a take-up device, wherein the take-up device can be a spindle with acid resistance, then putting the acid-resistant spindle and the glass fiber raw yarn into an acid leaching tank, then adding acid with certain concentration into the tank, heating the acid to about 50 ℃, keeping the temperature until the acid leaching is finished, then putting the glass fiber raw yarn into a water tank for cleaning until the cleaning is finished, and processing the glass fiber raw yarn into alkali-free glass fiber yarn. The acid treatment removes the alkaline mixture from the glass fibers, thus obtaining alkali-free glass fiber yarns with better mechanical properties. The bending service life of the general medium-alkali glass fiber is only 2000 times, while the bending service life of the alkali-free glass fiber is more than 5000 times, the tensile strength of the alkali-free glass fiber is far higher than that of the medium-alkali glass fiber, and the alkali-free glass fiber is more suitable for being used as a composition base material of a brake band.
The surface of the alkali-free glass fiber yarn is coated with the sizing agent through an oiling device, and the alkali-free glass fiber yarn is split and drawn through a beam splitter and then bundled to a spindle through a bundling device. 1000 to 2000 alkali-free glass fiber yarns are twisted in the S direction during the bundling process and then wound on a spindle. Then the tail end of the alkali-free glass fiber formed by twisting a plurality of filaments on the spindle is fed into a high-speed twisting machine. The high-speed twisting machine is provided with a pre-twisting device, the alkali-free glass fiber and the brass wire are twisted by the pre-twisting device, and the twisting direction of the pre-twisting device is opposite to the twisting direction formed on the yarn. The pre-twisting device is generally a circular rotating body, the circular rotating body is driven by a motor to rotate, the circular rotating body is provided with two bayonets, brass wires and alkali-free glass fibers are respectively placed in the two bayonets, the circular rotating body rotates reversely to apply Z-direction twisting to yarns, the alkali-free glass fibers and the brass wires of the yarns are twisted in S direction, and the twist coefficient of the circular rotating body to the yarns is below 28 twists per millimeter. Preferably, the axis of rotation of the spindle, the center of the pre-twisting device and the feed inlet of the high-speed twisting machine are arranged in a line so that the brass wire and the alkali-free glass fiber form a uniform twist angle. The twisted yarns form an inner core of the covering yarn for manufacturing the brake band base material.
Wherein the brass wire has a cross section diameter of 0.12mm, a copper content of 62 wt% and a zinc content of 38 wt%. Brass wires with a cross-section diameter of 0.15mm, a copper content of 65% by weight and a zinc content of 35% by weight can also be selected. The two brass wires and the alkali-free glass fiber can form better matching in size. The two are tightly attached to form a round section, so that the using amount of wrapping leather yarns is reduced.
And finally, uniformly winding leather yarns formed by mixing acrylic fibers and viscose fibers on the surface of the pre-twisted yarns through an air friction spinning machine to prepare rope-shaped yarns with a core-spun structure, wherein the core-spun yarns form a reinforced base material applied to the asbestos-free brake band.
Claims (7)
1. A method of making a core spun yarn for an asbestos-free brake tape, comprising:
step S1, firstly, delivering the glass liquid to a porous bushing for extrusion, cooling the extruded glass liquid into glass fiber raw yarns through a sprayer, and then winding the generated glass fiber raw yarns on a spindle;
step S2, putting the spindle and the glass fiber raw yarn into an acid leaching tank, then adding acid with a certain concentration into the tank, heating the acid to the required temperature, keeping the temperature until the acid leaching is completed, and then putting the glass fiber raw yarn into a water tank to be cleaned until the cleaning is completed to form alkali-free glass fiber yarn;
step S3, coating the surface of the alkali-free glass fiber yarn with an oiling device, separately drawing the alkali-free glass fiber yarn after coating through a buncher, and finally bundling the alkali-free glass fiber after separately drawing through the buncher;
step S4, sending the alkali-free glass fiber formed by bundling to a twisting machine, and twisting the alkali-free glass fiber and a brass wire into yarn by the twisting machine;
and step S5, uniformly winding leather yarns formed by mixing acrylic fibers and viscose fibers on the surface of the twisted yarns through an air friction spinning machine to prepare rope-shaped yarns with a core-spun structure, wherein the rope-shaped yarns form a reinforcing base material applied to the asbestos-free brake band.
2. A method of manufacturing a core-spun yarn for a non-asbestos brake tape according to claim 1, wherein the twist multiplier of the pair of yarns in the S4 step is 28 twists per meter.
3. The method of claim 1 or 2, wherein the twisting direction of the yarn by the twisting machine in the step S4 is Z-shaped, the self-twisting direction of the alkali-free glass fiber is S-shaped, and the self-twisting degree of the alkali-free glass fiber is 28 twists per meter.
4. A method of manufacturing a core-spun yarn for a non-asbestos brake tape as claimed in claim 3, wherein the twisting machine of step S4 twists the yarn by pre-twisting.
5. The method of claim 1 or 2, wherein the step of S1 produces 200Tex to 300Tex glass fiber yarn with filament diameter less than or equal to 13 μm.
6. A method of making a core-spun yarn for a non-asbestos brake tape according to claim 5, wherein the brass wire has a cross-sectional diameter of 0.12mm, and has a copper content of 62% by weight and a zinc content of 38% by weight.
7. A method of making a core-spun yarn for a non-asbestos brake tape according to claim 5, wherein the brass wire has a cross-sectional diameter of 0.15mm, and has a copper content of 65% by weight and a zinc content of 35% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467405.8A CN112458587A (en) | 2020-12-14 | 2020-12-14 | Method for manufacturing core-spun yarn for asbestos-free brake band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467405.8A CN112458587A (en) | 2020-12-14 | 2020-12-14 | Method for manufacturing core-spun yarn for asbestos-free brake band |
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| Publication Number | Publication Date |
|---|---|
| CN112458587A true CN112458587A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011467405.8A Pending CN112458587A (en) | 2020-12-14 | 2020-12-14 | Method for manufacturing core-spun yarn for asbestos-free brake band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717632A (en) * | 2022-11-28 | 2023-02-28 | 东台市华阳玻纤有限责任公司 | Base material for anchor machine brake band |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105858A (en) * | 1984-11-29 | 1986-05-10 | 博格-华纳公司 | The friction element that does not contain asbestos |
| CN1455127A (en) * | 2002-04-29 | 2003-11-12 | 东台市华阳玻纤有限责任公司 | Asbest-free friction material reinforced base material and manufacturing process thereof |
| CN1667303A (en) * | 2004-03-08 | 2005-09-14 | 东台市华阳玻纤有限责任公司 | Carbon fiber filling sealed and woven base material and its manufacturing method |
| CN201827277U (en) * | 2010-07-20 | 2011-05-11 | 来安县隆华摩擦材料有限公司 | Reinforced substrate for asbestos-free friction material |
| CN201962240U (en) * | 2011-02-23 | 2011-09-07 | 东台市华源复合材料有限公司 | No asbestos braking material reinforcing temperature resistant substrate |
| CN103739197A (en) * | 2014-01-06 | 2014-04-23 | 江苏中亚新材料股份有限公司 | Production method of glass fiber SMC yarn |
| CN104973791A (en) * | 2015-04-28 | 2015-10-14 | 安徽丹凤集团桐城玻璃纤维有限公司 | Alkali-free glass fiber yarn production process |
| CN207047454U (en) * | 2017-05-12 | 2018-02-27 | 丰照 | A kind of glass fiber flame retardant wrap yarn |
| CN109236907A (en) * | 2018-11-14 | 2019-01-18 | 东台市华阳玻纤有限责任公司 | A kind of resurrection glass fibre composite fibre friction material |
| CN109234880A (en) * | 2018-11-09 | 2019-01-18 | 东台市华阳玻纤有限责任公司 | A kind of blended covering yarn of resurrection glass fibre applied to ship brake ribbon |
-
2020
- 2020-12-14 CN CN202011467405.8A patent/CN112458587A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105858A (en) * | 1984-11-29 | 1986-05-10 | 博格-华纳公司 | The friction element that does not contain asbestos |
| CN1455127A (en) * | 2002-04-29 | 2003-11-12 | 东台市华阳玻纤有限责任公司 | Asbest-free friction material reinforced base material and manufacturing process thereof |
| CN1667303A (en) * | 2004-03-08 | 2005-09-14 | 东台市华阳玻纤有限责任公司 | Carbon fiber filling sealed and woven base material and its manufacturing method |
| CN201827277U (en) * | 2010-07-20 | 2011-05-11 | 来安县隆华摩擦材料有限公司 | Reinforced substrate for asbestos-free friction material |
| CN201962240U (en) * | 2011-02-23 | 2011-09-07 | 东台市华源复合材料有限公司 | No asbestos braking material reinforcing temperature resistant substrate |
| CN103739197A (en) * | 2014-01-06 | 2014-04-23 | 江苏中亚新材料股份有限公司 | Production method of glass fiber SMC yarn |
| CN104973791A (en) * | 2015-04-28 | 2015-10-14 | 安徽丹凤集团桐城玻璃纤维有限公司 | Alkali-free glass fiber yarn production process |
| CN207047454U (en) * | 2017-05-12 | 2018-02-27 | 丰照 | A kind of glass fiber flame retardant wrap yarn |
| CN109234880A (en) * | 2018-11-09 | 2019-01-18 | 东台市华阳玻纤有限责任公司 | A kind of blended covering yarn of resurrection glass fibre applied to ship brake ribbon |
| CN109236907A (en) * | 2018-11-14 | 2019-01-18 | 东台市华阳玻纤有限责任公司 | A kind of resurrection glass fibre composite fibre friction material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717632A (en) * | 2022-11-28 | 2023-02-28 | 东台市华阳玻纤有限责任公司 | Base material for anchor machine brake band |
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