CN112694649A - Preparation method of novel disc type friction plate - Google Patents
Preparation method of novel disc type friction plate Download PDFInfo
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Abstract
The invention provides a preparation method of a novel disc type friction plate, which comprises the following steps: step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene and EPDM rubber particles into an internal mixer to be mixed for a period of time, the second part puts steel fiber, synthetic graphite, fibrilia and manganese sulfide to be mixed continuously, and after the third part adds crystalline flake graphite and vulcanization system agent, the upper top bolt of the internal mixer falls down to be mixed into a mixture; step S2: rolling; step S3: crushing; step S4: hot-press forming; step S5: grinding treatment: and grinding the friction plate blank to obtain the required disc type friction plate. The invention provides a preparation method of a novel disc friction plate, and the novel disc friction plate with good damping and noise reduction performance and long service life is prepared.
Description
Technical Field
The invention relates to the technical field of brake friction plate production, in particular to a preparation method of a novel disc type friction plate.
Background
With the wide application of disc brakes in the field of commercial vehicles, a plurality of problems such as metal transfer, brake disc damage, high-frequency brake noise generation and the like also occur in the aftermarket of the disc brake pads. Most of the disc friction plates of commercial vehicles on the market mainly adopt a semimetal type, and a friction material contains steel fibers in a certain proportion. Although the formula of the semimetal friction plate in the prior art has the advantages of stable high-temperature braking torque, long service life and the like, the semimetal friction plate in the prior art still has the defects of pulling a dual surface, generating larger braking noise and the like, so that the friction plate needs to be modified by introducing a new material formula into the formula of the semimetal friction plate in the prior art to solve the problems.
In order to solve the problems, a preparation method of a novel disc type friction plate with long service life and good damping and noise reducing performances needs to be designed.
Disclosure of Invention
The invention provides a preparation method of a novel disc friction plate, aiming at preparing the novel disc friction plate with good shock absorption and noise reduction performance and long service life by introducing high temperature resistant polytetrafluoroethylene, EPDM particles and granular graphite into a semimetal formula, carrying out secondary processing granulation on banburying and roll milling equipment, and then carrying out hot press molding.
The technical purpose of the invention is realized by the following technical scheme: a preparation method of a novel disc friction plate comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene and EPDM rubber particles into an internal mixer to be mixed for a period of time, the second part puts steel fiber, synthetic graphite, fibrilia and manganese sulfide to be mixed continuously, and after the third part adds crystalline flake graphite and vulcanization system agent, the upper top bolt of the internal mixer falls down to be mixed into a mixture;
step S2: and (3) rolling: after the banburying of the step S1, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, performing secondary molding, and rolling the mixture into a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, subpackaging and weighing the crushed materials and preparing for hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die, and performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
As a further setting of the invention, the raw materials in step S1 are in the following proportions by weight: 10-15 parts of nitrile rubber, 40-50 parts of steel fiber, 5-8 parts of polytetrafluoroethylene, 3-5 parts of manganese sulfide, 20-25 parts of synthetic graphite, 10-15 parts of crystalline flake graphite, 2-5 parts of a vulcanization system agent, 5-10 parts of fibrilia and 5-10 parts of EPDM rubber particles.
As a further setting of the invention, the rubber composition also comprises 3-5 parts of methyl cyclodextrin by weight, and the methyl cyclodextrin and EPDM rubber particles are added into an internal mixer together.
As a further configuration of the invention, the steel fiber internal mixer also comprises 1-5 parts by weight of lauryl alcohol methacrylate, and the lauryl alcohol methacrylate and the steel fiber are added into the internal mixer together.
As a further setting of the invention, in the step S1, the first banburying temperature is 0-40 ℃, the rotation speed is 35-40r/min, and the banburying time is 180-200S; the banburying temperature of the second part is 0-40 ℃, the rotating speed is 35-40r/min, and the banburying time is 180-200 s; the third part has the banburying temperature of 90-95 ℃, the rotating speed of 35-40r/min, the banburying time of 8-9min and the internal pressure of a banburying bin of 2 MPa.
As a further arrangement of the invention, in the step S2, the feeding amount in the rolling is 10 kg/time, each rolling is carried out for 3 minutes, the temperature of a double roller is 30-35 ℃, and the rotating speed of the double roller is 20 r/min.
As a further configuration of the present invention, the crushed materials of the step S3 have a particle size of 0.5-1.0 cm.
As a further setting of the invention, the hot pressing temperature of the step S4 hot pressing molding is 155-165 ℃, and the heat treatment temperature is 165-170 ℃.
The beneficial effect of this scheme is:
1. according to the invention, in the preparation process of the disc type friction plate, macromolecule nitrile rubber, high-temperature-resistant polytetrafluoroethylene and EPDM rubber particles are introduced into the semi-metal material, and the nitrile rubber, the high-temperature-resistant polytetrafluoroethylene and EPDM rubber particles have longer molecular chains and have higher elastic deformation, shock absorption and sound wave absorption capacities, so that the natural frequency of the disc type friction plate is changed, the noise absorption performance of the disc type friction plate during braking is effectively improved, and the shock effect of the friction plate is reduced.
2. According to the invention, a three-stage banburying mode is adopted in banburying, nitrile rubber, polytetrafluoroethylene and EPDM rubber particles are added into the first part, and methyl cyclodextrin is added, so that the connection acting force between the nitrile rubber and the polytetrafluoroethylene and EPDM rubber particles can be effectively promoted by the methyl cyclodextrin, the net winding effect between the nitrile rubber and the polytetrafluoroethylene and EPDM rubber particles is improved, the complexity of a multi-dimensional net structure of a substance is improved, and the shock absorption, sound absorption and noise reduction performance of a subsequent disc type friction plate is improved.
3. According to the invention, the second part is added with steel fibers, synthetic graphite, fibrilia and manganese sulfide during banburying, and simultaneously lauryl alcohol methacrylate is added, and the lauryl alcohol methacrylate can improve the connection adhesion of inorganic matters such as the steel fibers and the like and organic matters of particles of the nitrile rubber, polytetrafluoroethylene and EPDM which are banburied in the first part, improve the distribution uniformity of material materials and improve the damping and noise reduction performance of subsequent friction materials.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer for internal mixing at the temperature of 0 ℃, the rotating speed of 35r/min and 180S, the second part puts steel fibers, lauryl alcohol methacrylate, synthetic graphite, hemp fibers and manganese sulfide, and the internal mixing temperature is 0 ℃, the rotating speed of 35r/min and 180S, the third part is added with crystalline flake graphite and a vulcanization system agent, the top plug of the internal mixer falls down, the internal mixing temperature is 90 ℃, the rotating speed of 35r/min and the internal mixing time is 8min, the internal pressure of an internal mixing bin is 2MPa, the materials are internally mixed into a mixture, and the mixture ratio of the raw materials in the step S1 is as follows in parts by weight: 10 parts of nitrile rubber, 40 parts of steel fiber, 5 parts of polytetrafluoroethylene, 3 parts of manganese sulfide, 20 parts of synthetic graphite, 10 parts of crystalline flake graphite, 2 parts of a vulcanization system agent, 5 parts of fibrilia, 5 parts of EPDM rubber particles, 3 parts of methyl cyclodextrin and 1 part of lauryl alcohol methacrylate;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a double-roll temperature of 30 ℃ and a double-roll rotating speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 0.5cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die at the temperature of 155 ℃ and 165 ℃ for forming, and then performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Example 2:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer to be mixed for 200S at the mixing temperature of 40 ℃, the rotating speed of 40r/min, the second part puts steel fiber, lauryl alcohol methacrylate, synthetic graphite, hemp fiber and manganese sulfide, and the third part is added with crystalline flake graphite and a vulcanization system agent to be mixed for 200S at the mixing temperature of 40 ℃, the rotating speed of 40r/min and the mixing time of 9min, the internal pressure of an internal mixing bin is 2MPa, the mixture is formed by internal mixing, and the mixture is prepared by the following raw materials in the step S1 according to the parts by weight: 15 parts of nitrile butadiene rubber, 50 parts of steel fiber, 8 parts of polytetrafluoroethylene, 5 parts of manganese sulfide, 25 parts of synthetic graphite, 15 parts of crystalline flake graphite, 5 parts of a vulcanization system agent, 10 parts of fibrilia, 10 parts of EPDM rubber particles, 5 parts of methyl cyclodextrin and 5 parts of lauryl alcohol methacrylate;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a feeding amount of 10 kg/time and a double-roll temperature of 35 ℃, carrying out double-roll rotation speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 1.0cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: the split-packaged and weighed crushed aggregates are hot-pressed at 165 ℃ in a die cavity of a die and are hot-pressed and molded at 170 ℃, and then are subjected to heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Example 3:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer to be mixed for 190S at the mixing temperature of 25 ℃, the rotating speed of 38r/min, the second part puts steel fibers, lauryl alcohol methacrylate, synthetic graphite, hemp fibers and manganese sulfide, the mixing temperature of 25 ℃, the rotating speed of 38r/min and the mixing for 190S are continued, after the third part is added with flake graphite and a vulcanization system agent, a top bolt of the internal mixer falls, the mixing temperature of 93 ℃, the rotating speed of 38r/min and the mixing time of 8.5min are carried out, the internal pressure of the internal mixing bin is 2MPa, the mixture is obtained by mixing, and the mixture ratio of the raw materials in the step S1 is as follows in parts by weight: 12 parts of nitrile rubber, 45 parts of steel fiber, 7 parts of polytetrafluoroethylene, 4 parts of manganese sulfide, 23 parts of synthetic graphite, 13 parts of crystalline flake graphite, 4 parts of a vulcanization system agent, 8 parts of fibrilia, 8 parts of EPDM rubber particles, 4 parts of methyl cyclodextrin and 3 parts of lauryl alcohol methacrylate;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a feeding amount of 10 kg/time and a double-roll temperature of 32 ℃, carrying out double-roll rotation speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 0.8cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die at 160 ℃ and 168 ℃ for forming, and then performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Example 4:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer to be mixed for 190S at the mixing temperature of 25 ℃, the rotating speed of 38r/min, the second part puts steel fibers, lauryl alcohol methacrylate, synthetic graphite, hemp fibers and manganese sulfide, the mixing temperature of 25 ℃, the rotating speed of 38r/min and the mixing for 190S are continued, after the third part is added with flake graphite and a vulcanization system agent, a top bolt of the internal mixer falls, the mixing temperature of 93 ℃, the rotating speed of 38r/min and the mixing time of 8.5min are carried out, the internal pressure of the internal mixing bin is 2MPa, the mixture is obtained by mixing, and the mixture ratio of the raw materials in the step S1 is as follows in parts by weight: 12 parts of nitrile rubber, 45 parts of steel fiber, 7 parts of polytetrafluoroethylene, 4 parts of manganese sulfide, 23 parts of synthetic graphite, 13 parts of crystalline flake graphite, 4 parts of a vulcanization system agent, 8 parts of fibrilia, 8 parts of EPDM rubber particles and 3 parts of lauryl alcohol methacrylate;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a feeding amount of 10 kg/time and a double-roll temperature of 32 ℃, carrying out double-roll rotation speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 0.8cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die at 160 ℃ and 168 ℃ for forming, and then performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Example 5:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer to be mixed for 190S at the mixing temperature of 25 ℃, the rotating speed of 38r/min, the second part puts steel fibers, lauryl alcohol methacrylate, synthetic graphite, hemp fibers and manganese sulfide, the mixing temperature of 25 ℃, the rotating speed of 38r/min and the mixing for 190S are continued, after the third part is added with flake graphite and a vulcanization system agent, a top bolt of the internal mixer falls, the mixing temperature of 93 ℃, the rotating speed of 38r/min and the mixing time of 8.5min are carried out, the internal pressure of the internal mixing bin is 2MPa, the mixture is obtained by mixing, and the mixture ratio of the raw materials in the step S1 is as follows in parts by weight: 12 parts of nitrile rubber, 45 parts of steel fiber, 7 parts of polytetrafluoroethylene, 4 parts of manganese sulfide, 23 parts of synthetic graphite, 13 parts of crystalline flake graphite, 4 parts of a vulcanization system agent, 8 parts of fibrilia, 8 parts of EPDM rubber particles and 4 parts of methyl cyclodextrin;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a feeding amount of 10 kg/time and a double-roll temperature of 32 ℃, carrying out double-roll rotation speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 0.8cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die at 160 ℃ and 168 ℃ for forming, and then performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Example 6:
the invention provides a preparation method of a novel disc type friction plate, which comprises the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene, EPDM rubber particles and methyl cyclodextrin into an internal mixer to be mixed for 190S at the mixing temperature of 25 ℃, the rotating speed of 38r/min, the second part puts steel fibers, lauryl alcohol methacrylate, synthetic graphite, hemp fibers and manganese sulfide, the mixing temperature of 25 ℃, the rotating speed of 38r/min and the mixing for 190S are continued, after the third part is added with flake graphite and a vulcanization system agent, a top bolt of the internal mixer falls, the mixing temperature of 93 ℃, the rotating speed of 38r/min and the mixing time of 8.5min are carried out, the internal pressure of the internal mixing bin is 2MPa, the mixture is obtained by mixing, and the mixture ratio of the raw materials in the step S1 is as follows in parts by weight: 12 parts of nitrile rubber, 45 parts of steel fiber, 7 parts of polytetrafluoroethylene, 4 parts of manganese sulfide, 23 parts of synthetic graphite, 13 parts of crystalline flake graphite, 4 parts of a vulcanization system agent, 8 parts of fibrilia and 8 parts of EPDM rubber particles;
step S2: and (3) rolling: after the banburying of the step S1 is finished, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, carrying out roll milling for 3 minutes each time at a feeding amount of 10 kg/time and a double-roll temperature of 32 ℃, carrying out double-roll rotation speed of 20r/min, carrying out secondary forming, and carrying out roll milling to obtain a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, wherein the particle size of the crushed materials is 0.8cm, and subpackaging and weighing the crushed materials for preparing hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die at 160 ℃ and 168 ℃ for forming, and then performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
Test experiments: the processing method of the embodiment 1-6 of the invention is adopted to respectively produce six groups of brake pads, then the six groups of brake pads are respectively arranged on the same brake pad test automobile model, then the hub is started to rotate, then the same force is applied to the brake pads of each group, so that the brake pads act on the hub to brake, the noise generated by the brake of each group of brake pads is respectively detected by a noise detector in the braking process, and the noise is recorded, and the recorded data is shown in the table 1:
table 1: noise test meter of each embodiment
| Test specimen | Noise figure (dB) |
| Example 1 | 52 |
| Example 2 | 49 |
| Practice ofExample 3 | 50 |
| Example 4 | 57 |
| Example 5 | 59 |
| Example 6 | 90 |
The preparation method of the novel disc friction plate provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. The preparation method of the novel disc type friction plate is characterized by comprising the following steps:
step S1: banburying: the first part puts nitrile rubber, polytetrafluoroethylene and EPDM rubber particles into an internal mixer to be mixed for a period of time, the second part puts steel fiber, synthetic graphite, fibrilia and manganese sulfide to be mixed continuously, and after the third part adds crystalline flake graphite and vulcanization system agent, the upper top bolt of the internal mixer falls down to be mixed into a mixture;
step S2: and (3) rolling: after the banburying of the step S1, crushing the mixture banburied out of the pot, uniformly adding the mixture into a roll mill, performing secondary molding, and rolling the mixture into a sheet-shaped object;
step S3: crushing: packaging and crushing the sheet materials rolled in the step S2 into crushed materials, subpackaging and weighing the crushed materials and preparing for hot press molding;
step S4: hot-press molding: hot-pressing the split-packaged and weighed crushed aggregates in a die cavity of a die, and performing heat treatment and solidification to form a friction plate blank;
step S5: grinding treatment: and grinding the friction plate blank, controlling the size, checking the technological appearance of the friction plate and preparing the required disc type friction plate.
2. The preparation method of the novel disc friction plate according to claim 1, wherein the raw materials in step S1 are in parts by weight: 10-15 parts of nitrile rubber, 40-50 parts of steel fiber, 5-8 parts of polytetrafluoroethylene, 3-5 parts of manganese sulfide, 20-25 parts of synthetic graphite, 10-15 parts of crystalline flake graphite, 2-5 parts of a vulcanization system agent, 5-10 parts of fibrilia and 5-10 parts of EPDM rubber particles.
3. The preparation method of the novel disc friction plate according to claim 2, characterized by further comprising 3-5 parts by weight of methyl cyclodextrin, wherein the methyl cyclodextrin and EPDM rubber particles are added into an internal mixer together.
4. The method for preparing a novel disc friction plate according to claim 2, characterized by further comprising 1-5 parts by weight of lauryl alcohol methacrylate, wherein the lauryl alcohol methacrylate is added into the internal mixer together with the steel fibers.
5. The method for preparing a novel disc type friction plate as claimed in claim 1, wherein in step S1, the first banburying temperature is 0-40 ℃, the rotation speed is 35-40r/min, and the banburying time is 180-; the banburying temperature of the second part is 0-40 ℃, the rotating speed is 35-40r/min, and the banburying time is 180-200 s; the third part has the banburying temperature of 90-95 ℃, the rotating speed of 35-40r/min, the banburying time of 8-9min and the internal pressure of a banburying bin of 2 MPa.
6. The method for preparing a novel disc friction plate according to claim 1, wherein in the step S2, the feeding amount in the rolling is 10 kg/time, each rolling is carried out for 3 minutes, the temperature of a double roller is 30-35 ℃, and the rotating speed of the double roller is 20 r/min.
7. The production method of a novel disc friction plate according to claim 1, wherein the particle size of the crushed material obtained in step S3 is 0.5 to 1.0 cm.
8. The method as claimed in claim 1, wherein the hot pressing temperature of step S4 is 155-165 ℃, and the heat treatment temperature is 165-170 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956659A (en) * | 2022-05-09 | 2022-08-30 | 枣阳风神摩擦材料有限公司 | Novel friction plate and preparation method thereof |
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| CN101812283A (en) * | 2010-04-06 | 2010-08-25 | 焦龙 | Premix material for friction material and processing method thereof |
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| CN111594561A (en) * | 2020-04-23 | 2020-08-28 | 江苏铁科新材料股份有限公司 | Environment-friendly composite brake shoe material and brake shoe manufacturing method |
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| SU1324273A1 (en) * | 1984-12-29 | 1992-09-07 | Предприятие П/Я В-8570 | Friction composition |
| JPH07188469A (en) * | 1993-12-27 | 1995-07-25 | Ntn Corp | Lubricating rubber composition |
| CN101812283A (en) * | 2010-04-06 | 2010-08-25 | 焦龙 | Premix material for friction material and processing method thereof |
| CN108864512A (en) * | 2018-07-05 | 2018-11-23 | 北京天宜上佳高新材料股份有限公司 | A kind of preparation method of fiber-reinforced resin base frication material |
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| CN114956659A (en) * | 2022-05-09 | 2022-08-30 | 枣阳风神摩擦材料有限公司 | Novel friction plate and preparation method thereof |
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