CN111594561A - Environment-friendly composite brake shoe material and brake shoe manufacturing method - Google Patents
Environment-friendly composite brake shoe material and brake shoe manufacturing method Download PDFInfo
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- CN111594561A CN111594561A CN202010326238.9A CN202010326238A CN111594561A CN 111594561 A CN111594561 A CN 111594561A CN 202010326238 A CN202010326238 A CN 202010326238A CN 111594561 A CN111594561 A CN 111594561A
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- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 238000005303 weighing Methods 0.000 claims abstract description 11
- 238000007731 hot pressing Methods 0.000 claims abstract description 6
- 238000004898 kneading Methods 0.000 claims abstract description 6
- 238000005488 sandblasting Methods 0.000 claims abstract description 6
- 230000001680 brushing effect Effects 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 30
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 11
- 238000001723 curing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 8
- 229910052902 vermiculite Inorganic materials 0.000 claims description 8
- 239000010455 vermiculite Substances 0.000 claims description 8
- 235000019354 vermiculite Nutrition 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 229920000459 Nitrile rubber Polymers 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 7
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000020169 heat generation Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000009966 trimming Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004643 material aging Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 238000005297 material degradation process Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08L61/14—Modified phenol-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/003—Chip removing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an environment-friendly composite brake shoe material and a brake shoe manufacturing method. It comprises the following steps: A. accurately weighing various raw materials according to the formula requirements; B. putting the raw materials into an internal mixer, kneading and internally mixing at room temperature, discharging and cooling; c, drying the raw materials obtained by banburying, and then crushing for later use; D. after sand blasting and dirt removing are carried out on the tile back adhesive surface, brushing the tile back adhesive, and drying at room temperature for later use; E. hot-pressing, curing and forming to obtain a product; F. and (5) secondary curing, trimming and deburring to obtain a brake shoe finished product. The advantages are that: the material degradation caused by temperature rise is effectively reduced, the material friction heat generation rate is reduced, the shearing strength in the material is higher, the strength reduction speed is slowed down, the phenomenon that the friction layer falls slag and blocks is effectively prevented, the strength reduction problem caused by heat generation to material aging is reduced, the integral strength of the friction layer is greatly improved, the friction layer abrasion rate is reduced, the service life is effectively prolonged, and the current loading application effect is good.
Description
Technical Field
The invention relates to a fitting for train brake, in particular to an environment-friendly composite brake shoe material and a brake shoe manufacturing method.
Background
The brake shoe is an accessory used for braking a train, the structure of the brake shoe is equivalent to a section of circular arc, the front part and the rear part of the wheel are respectively provided with one piece, when the train brakes, the two pieces are compressed by air to hold the tread of the wheel tightly, and the braking function is realized through friction; the existing brake shoe which is commonly used at home and abroad on the market is generally short in service life because the brake shoe is limited in material formula and the manufacturing method is not scientific, so that the friction heat generation is fast when the product is used, the strength is reduced fast, and the abrasion is high, and in addition, the repair and maintenance cost is very high in the use process, the operation cost is increased accordingly, and the brake shoe which is slightly good in performance can be used for 6-8 months, and is worse, and is normal for 3-4 months by taking the domestic Daqin line as an example; through the service life analysis of all the systems of the whole vehicle, the parts with the service life lower than 1 year only have one brake shoe, so the maintenance cost and the operation cost of the vehicle are limited by the condition, and the service life of the brake shoe is improved to be the first task under the current 'state repair' requirement.
Disclosure of Invention
The invention aims to provide an environment-friendly composite brake shoe and a brake shoe manufacturing method, wherein the friction heat generation rate is reduced, and the strength loss rate is slowed down, so that the abrasion rate is reduced, the service life is prolonged, and the repair and maintenance cost is reduced.
In order to solve the technical problems, the environment-friendly composite brake shoe material adopts the following formula and weight ratio: 15-30 parts of modified phenolic resin; 10-20 parts of nitrile rubber; 5-10 parts of carbon fiber; 3-6 parts of graphene; 5-15 parts of steel fiber; 5-15 parts of vermiculite; 5-15 parts of ceramic fiber and 1-10 parts of precipitated barium sulfate; 2-6 parts of molybdenum disulfide, 1-3 parts of carbon black, 1-3 parts of sulfur, 0.1-1 part of accelerator and 0.1-1 part of zinc oxide.
The fiber lengths of the carbon fibers, the steel fibers and the ceramic fibers are all 1-5 mm.
The formula and the weight ratio are as follows: 23 parts of modified phenolic resin; 15 parts of nitrile rubber; 7 parts of carbon fiber; 5 parts of graphene; 10 parts of steel fiber; 10 parts of vermiculite; 10 parts of ceramic fiber and 7 parts of precipitated barium sulfate; 4 parts of molybdenum disulfide, 2 parts of carbon black, 2 parts of sulfur, 0.7 part of accelerator and 0.6 part of zinc oxide.
A method for manufacturing an environment-friendly composite brake shoe comprises the following steps:
A. preparing materials: accurately weighing various raw materials according to the formula requirements;
B. banburying: putting the raw materials into an internal mixer, kneading and internally mixing for 10-15min at room temperature until the temperature reaches 120-;
C. drying and crushing: drying the raw materials obtained by banburying at 90-120 ℃ for 3-8h, and then crushing for later use;
D. tile back treatment: after sand blasting and dirt removing are carried out on the tile back adhesive surface, brushing the tile back adhesive, and drying at room temperature for later use;
E. hot-pressing, curing and molding: placing the tile back into a mold, weighing the mixed raw materials for standby application, paving the mixed raw materials into the mold, and carrying out heat preservation and demolding under the set temperature and pressure condition after exhausting to obtain a product;
F. secondary curing: and (3) putting the cooled product into an oven, heating the product from the room temperature to 155-.
In the step B, the banburying rotating speed is 15-30 r/min.
In the step E, after exhausting, the mold is released after heat preservation is carried out for 15-30min at the temperature of 130-180 ℃ and the pressure of 15-30 mpa.
In the step C, the raw materials obtained by banburying are dried for 4 hours at 100 ℃, and then are crushed to a size capable of being screened by a five-mesh sieve.
The invention has the advantages that:
after reasonable formula and proportion collocation, a special manufacturing process is added, so that the friction material has a microporous structure, heat is easy to dissipate, the temperature of the wheel tread is far less than 400 ℃, the degradation of the material caused by temperature rise is effectively reduced, the heat generation rate of the material due to friction is reduced, the internal shear strength of the material is higher, the strength reduction speed is slowed down, the phenomenon that the friction layer falls off slag and blocks due to external force factors is effectively prevented, the strength reduction problem caused by heat generation to material aging is reduced, in addition, the integral strength of the friction layer is greatly improved, the wear rate of the friction layer is reduced, the service life is effectively prolonged, and the application effect of the existing loading is good.
Detailed Description
The environment-friendly composite brake shoe and the method for manufacturing the brake shoe according to the present invention will be described in detail with reference to the following embodiments.
The first embodiment is as follows:
the method for manufacturing an eco-friendly composite brake shoe of the present embodiment comprises the steps of:
A. preparing materials: accurately weighing various raw materials by using an electronic scale, wherein the raw materials comprise the following components in percentage by weight: 15 parts of modified phenolic resin; 10 parts of nitrile rubber; 5 parts of carbon fiber; 3 parts of graphene; 5 parts of steel fiber; 5 parts of vermiculite; 5 parts of ceramic fiber and 1 part of precipitated barium sulfate; 2 parts of molybdenum disulfide, 1 part of carbon black, 1 part of sulfur, 0.1 part of accelerator and 0.1 part of zinc oxide, wherein the fiber lengths of carbon fibers, steel fibers and ceramic fibers are all 1 mm;
B. banburying: putting the raw materials into an internal mixer, kneading and banburying at room temperature, banburying at the rotating speed of 15r/min for 10min until the temperature reaches above 120 ℃, discharging and cooling;
C. drying and crushing: drying the raw materials obtained by banburying at 90 ℃ for 3h, and then crushing to a size capable of being screened by a five-mesh sieve for later use;
D. tile back treatment: after sand blasting and dirt removing are carried out on the tile back adhesive surface, brushing the tile back adhesive, and drying at room temperature for later use;
E. hot-pressing, curing and molding: placing the tile back into a mold, weighing the mixed raw materials for standby application, paving the mixed raw materials into the mold, exhausting air, keeping the temperature at 130 ℃ and the pressure at 15mpa for 15min, and demolding to obtain a product;
F. secondary curing: and (3) putting the cooled product into an oven, heating the product to 155 ℃ from the room temperature, keeping the temperature for 1h, then heating the product to 175 ℃, keeping the temperature for 1h, finally heating the product to 190 ℃, keeping the temperature for 1h, and finally cooling the product, and trimming and deburring the product to obtain a finished product of the brake shoe.
Example two:
the method for manufacturing an eco-friendly composite brake shoe of the present embodiment comprises the steps of:
A. preparing materials: accurately weighing various raw materials by using an electronic scale according to the formula requirements, wherein the raw materials comprise the following components in percentage by weight: 29 parts of modified phenolic resin; 8 parts of nitrile rubber; 9 parts of carbon fiber. 6 parts of graphene; 8 parts of steel fiber; 15 parts of vermiculite; 12 parts of ceramic fiber and 6 parts of precipitated barium sulfate; 3 parts of molybdenum disulfide, 2 parts of carbon black, 1 part of sulfur, 0.5 part of accelerator and 0.5 part of zinc oxide, wherein the fiber lengths of carbon fiber, steel fiber and ceramic fiber are all 5 mm;
B. banburying: putting the raw materials into an internal mixer, kneading and internally mixing for 15min at the rotating speed of 30r/min and room temperature until the temperature reaches below 140 ℃, discharging and cooling;
C. drying and crushing: drying the raw materials obtained by banburying at 120 ℃ for 8 hours, and then crushing to a size of five meshes for later use;
D. tile back treatment: after sand blasting and dirt removing are carried out on the tile back adhesive surface, the tile back adhesive is coated, and the tile back adhesive is dried at room temperature for standby
E. Hot-pressing, curing and molding: placing the tile back into a mold, weighing a quantitative mixture, paving the mixture into the mold, automatically exhausting, keeping the temperature at 180 ℃ and the pressure at 30mpa for 30min, and demolding to obtain a product;
F. secondary curing: and (3) putting the cooled product into an oven, heating the product to 165 ℃ from room temperature, keeping the temperature for 3h, then heating the product to 185 ℃, keeping the temperature for 3h, finally heating the product to 210 ℃, keeping the temperature for 3h, and finally cooling the product, and trimming and deburring the product to obtain the finished product of the brake shoe.
Example three:
the method for manufacturing an eco-friendly composite brake shoe of the present embodiment comprises the steps of:
A. preparing materials: accurately weighing various raw materials according to the formula requirements, wherein the raw materials comprise the following components in percentage by weight: 22 parts of modified phenolic resin; 15 parts of nitrile rubber; and 7 parts of carbon fiber. 3 parts of graphene; 12 parts of steel fiber; 12 parts of vermiculite; 7. 10 parts and 8 parts of ceramic fiber, and 10 parts of precipitated barium sulfate; 4 parts of molybdenum disulfide, 10 parts of carbon black, 2 parts of sulfur, 12 parts of accelerator, 0.5 part of 13 part of accelerator and 0.5 part of zinc oxide, wherein the fiber lengths of carbon fiber, steel fiber and ceramic fiber are all 3mm, the material strength is effectively improved by adopting carbon fiber and graphene in proper proportion, the heat generation rate of the material is reduced by adopting the steel fiber, vermiculite and carbon fiber in special proportion for heat dissipation, and the used materials do not contain forbidden substances and have the function of environmental protection;
B. banburying: putting the raw materials into an internal mixer, kneading and banburying at room temperature, banburying at the rotating speed of 20r/min for 12min until the temperature reaches about 130 ℃, discharging and cooling;
C. drying and crushing: drying the raw materials obtained by banburying at 100 ℃ for 4 hours, and then crushing to a size capable of being screened by a five-mesh sieve for later use;
D. tile back treatment: after sand blasting and dirt removing are carried out on the tile back adhesive surface, brushing the tile back adhesive, and drying at room temperature for later use;
E. hot-pressing, curing and molding: placing the tile back into a mold, weighing the mixed raw materials for standby application, paving the mixed raw materials into the mold, performing compression molding at the temperature of 150 ℃ (the compression molding is performed at the temperature, the bonding reliability is greatly improved in the molding process), and the mold is removed after heat preservation is performed for 20min under the pressure of 20mpa after exhausting, so that a product is obtained, and various materials are mixed through the process, so that the overall strength is very high;
F. secondary curing: and (3) putting the cooled product into an oven, heating the product to 160 ℃ from room temperature, keeping the temperature for 2h, then heating the product to 180 ℃ for 2h, finally heating the product to 200 ℃ for 2h, and finally cooling the product, and trimming and deburring the product to obtain a finished product of the brake shoe.
The test results of the second and third examples are shown in the following table:
| example two | EXAMPLE III | |
| Compressive Strength (MPa) | 43.2 | 67.7 |
| Modulus of compression (GPa) | 0.94 | 1.12 |
| Internal shear Strength (KJ/m)2) | 14.4 | 18.13 |
| Flexural Strength (MPa) | 30.88 | 38.21 |
| Temperature of wheel tread (. degree. C.) | 174 | 183 |
| Wear Rate (mm/month) | 2.52 | 1.81 |
| Life (moon) | 13 | 19 |
The tread temperature, the wear rate and the service life are detected according to the TB/T2403 standard, other parameters accord with the TB/T2403 standard, and the data of the test results show that the compression strength, the compression modulus, the internal shear strength and the bending strength are high, and the wear rate is reduced.
Claims (7)
1. An environment-friendly composite brake shoe material adopts the following formula and weight ratio: 15-30 parts of modified phenolic resin; 10-20 parts of nitrile rubber; 5-10 parts of carbon fiber; 3-6 parts of graphene; 5-15 parts of steel fiber; 5-15 parts of vermiculite; 5-15 parts of ceramic fiber and 1-10 parts of precipitated barium sulfate; 2-6 parts of molybdenum disulfide, 1-3 parts of carbon black, 1-3 parts of sulfur, 0.1-1 part of accelerator and 0.1-1 part of zinc oxide.
2. An environmentally friendly composite brake shoe material according to claim 1, wherein: the fiber lengths of the carbon fibers, the steel fibers and the ceramic fibers are all 1-5 mm.
3. An environment-friendly composite brake shoe material according to claim 1 or 2, which is prepared from the following components in percentage by weight: 23 parts of modified phenolic resin; 15 parts of nitrile rubber; 7 parts of carbon fiber; 5 parts of graphene; 10 parts of steel fiber; 10 parts of vermiculite; 10 parts of ceramic fiber and 7 parts of precipitated barium sulfate; 4 parts of molybdenum disulfide, 2 parts of carbon black, 2 parts of sulfur, 0.7 part of accelerator and 0.6 part of zinc oxide.
4. A method for manufacturing an environment-friendly composite brake shoe, comprising the steps of:
A. preparing materials: accurately weighing various raw materials according to the formula requirements;
B. banburying: putting the raw materials into an internal mixer, kneading and internally mixing for 10-15min at room temperature until the temperature reaches 120-;
C. drying and crushing: drying the raw materials obtained by banburying at 90-120 ℃ for 3-8h, and then crushing for later use;
D. tile back treatment: after sand blasting and dirt removing are carried out on the tile back adhesive surface, brushing the tile back adhesive, and drying at room temperature for later use;
E. hot-pressing, curing and molding: placing the tile back into a mold, weighing the mixed raw materials for standby application, paving the mixed raw materials into the mold, and carrying out heat preservation and demolding under the set temperature and pressure condition after exhausting to obtain a product;
F. secondary curing: and (3) putting the cooled product into an oven, heating the product from the room temperature to 155-.
5. The method of manufacturing a brake shoe according to claim 4, wherein: in the step B, the banburying rotating speed is 15-30 r/min.
6. The method for manufacturing brake shoe according to claim 4 or 5, wherein: in the step E, after exhausting, the mold is released after heat preservation is carried out for 15-30min at the temperature of 130-180 ℃ and the pressure of 15-30 mpa.
7. The method of manufacturing a brake shoe according to claim 6, wherein: in the step C, the raw materials obtained by banburying are dried for 4 hours at 100 ℃, and then are crushed to a size capable of being screened by a five-mesh sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326238.9A CN111594561A (en) | 2020-04-23 | 2020-04-23 | Environment-friendly composite brake shoe material and brake shoe manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326238.9A CN111594561A (en) | 2020-04-23 | 2020-04-23 | Environment-friendly composite brake shoe material and brake shoe manufacturing method |
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| CN111594561A true CN111594561A (en) | 2020-08-28 |
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| CN202010326238.9A Pending CN111594561A (en) | 2020-04-23 | 2020-04-23 | Environment-friendly composite brake shoe material and brake shoe manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694649A (en) * | 2020-12-25 | 2021-04-23 | 湖北飞龙摩擦密封材料股份有限公司 | Preparation method of novel disc type friction plate |
| CN115353675A (en) * | 2022-10-21 | 2022-11-18 | 河北腾跃铁路装备股份有限公司 | High-strength brake shoe material and preparation method thereof |
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2020
- 2020-04-23 CN CN202010326238.9A patent/CN111594561A/en active Pending
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| CN106065912A (en) * | 2016-06-03 | 2016-11-02 | 上海国由复合材料科技有限公司 | Composite brake shoe and preparation method thereof |
| CN106366366A (en) * | 2016-08-31 | 2017-02-01 | 沈阳远程摩擦密封材料有限公司 | Composite brake lining for braking high speed railway with speed of 300 km/h |
| CN109707773A (en) * | 2018-12-27 | 2019-05-03 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of low noise high temperature resistant drum type friction piece and preparation method thereof by the production of three layered materials |
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| CN112694649A (en) * | 2020-12-25 | 2021-04-23 | 湖北飞龙摩擦密封材料股份有限公司 | Preparation method of novel disc type friction plate |
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| CN115353675B (en) * | 2022-10-21 | 2023-02-28 | 河北腾跃铁路装备股份有限公司 | High-strength brake shoe material and preparation method thereof |
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Application publication date: 20200828 |