CN103912618A - Manufacturing method of flame-retardant, anti-static and asbestos-free brake shoe - Google Patents
Manufacturing method of flame-retardant, anti-static and asbestos-free brake shoe Download PDFInfo
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- CN103912618A CN103912618A CN201410090044.8A CN201410090044A CN103912618A CN 103912618 A CN103912618 A CN 103912618A CN 201410090044 A CN201410090044 A CN 201410090044A CN 103912618 A CN103912618 A CN 103912618A
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Abstract
The invention relates to a manufacturing method of a flame-retardant, anti-static and asbestos-free brake shoe. The method comprises the following steps: putting ceramic fibers and coconut fibers into ethanol for soaking, and drying; stirring phenolic resin, rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zirconite to obtain a mixture I; stirring artificial mica, diatomite and barium sulfate to obtain a mixture II; stirring lead oxide, kaolin, antimonous oxide and conductive carbon black taken out in step (1) to obtain a mixture III; adding the mixture III into the mixture II, stirring, adding the mixture I, continually stirring, and adding ceramic fibers and coconut fibers to obtain a mixture; putting the mixture into a mold, and performing press molding to obtain a finished brake shoe. The brake shoe manufactured by using the manufacturing method has the advantages of stable friction coefficient, high strength and low wear, and has great popularization significance in the oil exploitation industry and the mine industry.
Description
Technical field
The present invention relates to brake friction material preparing technical field, be specifically related to the preparation method of a kind of flame-retardant and anti-static without asbestos brake shoe.
Background technique
The disc-brake shoe of mine hoist using before China, mostly adopts asbestos as friction material.Under condition at that time it be friction factor still can, mechanical strength is good, and has the friction material of better adsorption force with Bond.But asbestos brake shoe also has the shortcoming that is difficult to overcome: first, asbestos poor thermal conductivity, frictional heat is difficult to rapidly disappear and causes resin heat fade layer thickening, makes wearing and tearing aggravation, and asbestos fiber can make human body produce canceration.Secondly, asbestos friction coefficient of brake shoe is not high, and is prone to frictional behaviour heat fade, causes asbestos friction coefficient of brake shoe unstable.Meanwhile, asbestos brake shoe adopts high hardness rubbing agent and steel wool, can make brake shoe produce spark and corrosion, and brake disc is produced to sharp wear, in the time of braking, produces and utters long and high-pitched sounds.Now a lot of enterprises all in development without the brake shoe of asbestos component with the asbestos brake shoe before replacing, can be fire-retardant and anlistatig without asbestos brake shoe but find no.
Summary of the invention
The object of the invention is the deficiency for solving the problems of the technologies described above, the preparation method of a kind of flame-retardant and anti-static without asbestos brake shoe is provided, the brake shoe intensity that makes is high and wear-resisting property good, stable friction factor and have advantages of flame-retardant and anti-static.
The present invention is for solving the problems of the technologies described above, and the technological scheme providing is: a kind of flame-retardant and anti-static, without the preparation method of asbestos brake shoe, comprises the following steps:
1) get, by weight following raw materials according: 3～5 parts of 10～15 parts, phenolic resin, 5～10 parts of rubber powders, 10～14 parts of ceramic fibers, 1～2 part of stearic acid, cocoanut fiber 4～6,4～7 parts of micanites, 8～14 parts, silicious marl, 3～5 parts, graphite, 2～4 parts, lead oxide, 3～5 parts of white clay, 20～25 parts of wollastonites, 10～20 parts, barium sulphate, 10～15 parts of sepiolites, 3～6 parts of vermiculites, 5～7 parts of zircons, 3～5 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 40～50 DEG C and soaks 4～6h, soaks and finishes rear taking-up, under the hot blast of 50～60 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 1～2min, then mixture is transferred to low-speed mixer and continues to stir 6～15min, in stirring at low speed process, controlling temperature is 40～50 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate, add homogenizer stir 3～5min, obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer stir 3～5min, obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 1～2min, then add the mixture I that step 3) obtains to continue to stir 3～5min, finally at the temperature of 60～80 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min, obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 130～150 DEG C of temperature, add after 25～32MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
beneficial effect
The brake shoe that preparation method of the present invention obtains has stable friction factor, intensity is high and wear away the advantages such as low, in brake shoe composition, do not contain asbestos material, meet environment protection requirement, in brake shoe composition, there is no high hardness rubbing agent and steel wool yet, in braking process, can not produce a large amount of sparks and the sound of uttering long and high-pitched sounds; In addition, the flame-retardant and anti-static performance of the brake shoe of preparation and mechanical property meet MT113-1995 and JBT3721-1999 standard-required completely, at mine industry and oil exploration industry with have good dissemination.
Embodiment
Flame-retardant and anti-static, without a preparation method for asbestos brake shoe, comprises the following steps:
1) get, by weight following raw materials according: 3～5 parts of 10～15 parts, phenolic resin, 5～10 parts of rubber powders, 10～14 parts of ceramic fibers, 1～2 part of stearic acid, cocoanut fiber 4～6,4～7 parts of micanites, 8～14 parts, silicious marl, 3～5 parts, graphite, 2～4 parts, lead oxide, 3～5 parts of white clay, 20～25 parts of wollastonites, 10～20 parts, barium sulphate, 10～15 parts of sepiolites, 3～6 parts of vermiculites, 5～7 parts of zircons, 3～5 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 40～50 DEG C and soaks 4～6h, soaks and finishes rear taking-up, under the hot blast of 50～60 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 1～2min(mixing speed at 2400～3600r/min), then mixture is transferred to low-speed mixer and continues to stir 6～15min(mixing speed at 600～1200r/min), in stirring at low speed process, controlling temperature is 40～50 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate, add homogenizer to stir 3～5min(mixing speed at 1200～2000r/min), obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer to stir 3～5min(mixing speed at 1700～2500r/min), obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 1～2min(mixing speed at 600～800r/min), then add the mixture I that step 3) obtains to continue to stir 3～5min(mixing speed at 900～1500r/min), finally at the temperature of 60～80 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min(mixing speed at 800～1000r/min), obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 130～150 DEG C of temperature, add after 25～32MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
embodiment 1
Flame-retardant and anti-static, without a preparation method for asbestos brake shoe, comprises the following steps:
1) get, by weight following raw materials according: 5 parts of 10 parts, phenolic resin, 5 parts of rubber powders, 10 parts of ceramic fibers, 2 parts of stearic acid, cocoanut fiber 4,4 parts of micanites, 8 parts, silicious marl, 5 parts, graphite, 2 parts, lead oxide, 5 parts of white clay, 20 parts of wollastonites, 20 parts, barium sulphate, 10 parts of sepiolites, 3 parts of vermiculites, 7 parts of zircons, 3 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 50 DEG C and soaks 4h, soaks and finishes rear taking-up, under the hot blast of 60 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 2min(mixing speed 2400r/min), then mixture is transferred to low-speed mixer and continues to stir 6min(mixing speed 600r/min), in stirring at low speed process, controlling temperature is 50 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate,, add homogenizer to stir 3min(mixing speed 1200r/min), obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer to stir 5min(mixing speed 2500r/min), obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 2min(mixing speed 600r/min), then add the mixture I that step 3) obtains to continue to stir 3min(mixing speed 1500r/min), finally at the temperature of 60 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min(mixing speed 800r/min), obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 130 DEG C of temperature, add after 32MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
Strictly control the mixing speed of material in preparation process, can make various mixtures all reach desirable admixture by the control of the mixing speed to different powders and time, the brake shoe preparing is detected, result is as shown in the table:
The Specifeca tion speeification of table 1, brake shoe
The flame-retardant and anti-static performance of table 2, brake shoe
Can find out from above-mentioned testing result, the brake shoe that this method prepares all reaches certain level in frictional behaviour, intensity and wear rate and flame-retardant and anti-static performance.
embodiment 2
Flame-retardant and anti-static, without a preparation method for asbestos brake shoe, comprises the following steps:
1) get, by weight following raw materials according: 5 parts of 15 parts, phenolic resin, 10 parts of rubber powders, 14 parts of ceramic fibers, 1 part of stearic acid, cocoanut fiber 4,7 parts of micanites, 8 parts, silicious marl, 5 parts, graphite, 2 parts, lead oxide, 3 parts of white clay, 25 parts of wollastonites, 10 parts, barium sulphate, 10 parts of sepiolites, 6 parts of vermiculites, 7 parts of zircons, 5 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 40 DEG C and soaks 6h, soaks and finishes rear taking-up, under the hot blast of 50 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 2min, then mixture is transferred to low-speed mixer and continues to stir 15min, in stirring at low speed process, controlling temperature is 40 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate, add homogenizer stir 3min, obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer stir 5min, obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 1min, then add the mixture I that step 3) obtains to continue to stir 5min, finally at the temperature of 60 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min, obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 150 DEG C of temperature, add after 25MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
embodiment 3
Flame-retardant and anti-static, without a preparation method for asbestos brake shoe, comprises the following steps:
1) get, by weight following raw materials according: 4 parts of 12 parts, phenolic resin, 8 parts of rubber powders, 12 parts of ceramic fibers, 1 part of stearic acid, 5 parts of cocoanut fibers, 5 parts of micanites, 10 parts, silicious marl, 4 parts, graphite, 3 parts, lead oxide, 4 parts of white clay, 22 parts of wollastonites, 16 parts, barium sulphate, 12 parts of sepiolites, 4 parts of vermiculites, 6 parts of zircons, 4 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 45 DEG C and soaks 5h, soaks and finishes rear taking-up, under the hot blast of 55 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 1min, then mixture is transferred to low-speed mixer and continues to stir 10min, in stirring at low speed process, controlling temperature is 40 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate, add homogenizer stir 4min, obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer stir 4min, obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 1min, then add the mixture I that step 3) obtains to continue to stir 5min, finally at the temperature of 70 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min, obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 140 DEG C of temperature, add after 28MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
Claims (1)
1. flame-retardant and anti-static, without a preparation method for asbestos brake shoe, is characterized in that: comprise the following steps:
1) get, by weight following raw materials according: 3～5 parts of 10～15 parts, phenolic resin, 5～10 parts of rubber powders, 10～14 parts of ceramic fibers, 1～2 part of stearic acid, cocoanut fiber 4～6,4～7 parts of micanites, 8～14 parts, silicious marl, 3～5 parts, graphite, 2～4 parts, lead oxide, 3～5 parts of white clay, 20～25 parts of wollastonites, 10～20 parts, barium sulphate, 10～15 parts of sepiolites, 3～6 parts of vermiculites, 5～7 parts of zircons, 3～5 parts of antimonous oxides and conductive blacks, for subsequent use;
2), the ceramic fiber taking out in step 1) and cocoanut fiber are placed in to ethanol, the temperature of controlling ethanol is 40～50 DEG C and soaks 4～6h, soaks and finishes rear taking-up, under the hot blast of 50～60 DEG C, dries, for subsequent use;
3), the phenolic resin taking out in step 1), rubber powder, stearic acid, graphite, wollastonite, sepiolite, vermiculite and zircon are added homogenizer stir 1～2min, then mixture is transferred to low-speed mixer and continues to stir 6～15min, in stirring at low speed process, controlling temperature is 40～50 DEG C, obtain mixture I, for subsequent use;
4), by the micanite taking out in step 1), silicious marl and barium sulphate, add homogenizer stir 3～5min, obtain mixture II, for subsequent use;
5), by the lead oxide taking out in step 1), white clay, antimonous oxide and conductive black, add homogenizer stir 3～5min, obtain mixture III, for subsequent use;
6) the mixture III, step 5) being obtained adds in the mixture II that step 4) obtains, be placed in low-speed mixer and stir 1～2min, then add the mixture I that step 3) obtains to continue to stir 3～5min, finally at the temperature of 60～80 DEG C, add step 2) ceramic fiber and the cocoanut fiber processed, continue to mix 10min, obtain mixture, for subsequent use;
7) mixture that, step 6) obtains is put into mould, at 130～150 DEG C of temperature, add after 25～32MPa pressure is crossed exhaust and start to heat up, in the time that reaching 160 DEG C, temperature starts heat-insulation pressure keeping compressing, after finishing, heat-insulation pressure keeping starts cooling, the demoulding in the time that temperature drops to 110 DEG C, deburring, makes brake shoe finished product.
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| CN201410090044.8A CN103912618B (en) | 2014-03-13 | 2014-03-13 | A kind of flame-retardant and anti-static is without the preparation method of asbestos brake shoe |
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| CN201410090044.8A CN103912618B (en) | 2014-03-13 | 2014-03-13 | A kind of flame-retardant and anti-static is without the preparation method of asbestos brake shoe |
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| CN105041929A (en) * | 2015-07-31 | 2015-11-11 | 安徽省中力车辆制动系统制造有限公司 | Non-asbestos metal-free ceramic brake and manufacturing technique thereof |
| CN105108450A (en) * | 2015-07-31 | 2015-12-02 | 安徽省中力车辆制动系统制造有限公司 | Production process of brake pad |
| CN108443378A (en) * | 2018-05-11 | 2018-08-24 | 来安县隆华摩擦材料有限公司 | A kind of production technology of ceramic friction plate |
| CN111234450A (en) * | 2020-01-15 | 2020-06-05 | 中国矿业大学 | High-performance resin-based brake shoe material for mine hoist and preparation method thereof |
| CN113294465A (en) * | 2021-06-07 | 2021-08-24 | 福州大学 | Coconut fiber brake pad and preparation method thereof |
| CN113354874A (en) * | 2021-06-10 | 2021-09-07 | 湖北工程学院 | Preparation method of composite additive, wood-plastic board and preparation method thereof |
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| CN103089875A (en) * | 2013-01-22 | 2013-05-08 | 东营友亮工贸有限公司 | Coconut carbon compound type brake pad and preparation method |
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| US20020157321A1 (en) * | 2001-02-20 | 2002-10-31 | Masanori Chiba | Non- asbestos friction material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105041929A (en) * | 2015-07-31 | 2015-11-11 | 安徽省中力车辆制动系统制造有限公司 | Non-asbestos metal-free ceramic brake and manufacturing technique thereof |
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| CN111234450A (en) * | 2020-01-15 | 2020-06-05 | 中国矿业大学 | High-performance resin-based brake shoe material for mine hoist and preparation method thereof |
| CN113294465A (en) * | 2021-06-07 | 2021-08-24 | 福州大学 | Coconut fiber brake pad and preparation method thereof |
| CN113354874A (en) * | 2021-06-10 | 2021-09-07 | 湖北工程学院 | Preparation method of composite additive, wood-plastic board and preparation method thereof |
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| CN103912618B (en) | 2016-04-13 |
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Inventor after: Chu Guangcheng Inventor after: Ma Le Inventor after: Zhao Hong Inventor after: Lin Yufen Inventor after: Luo Xiaolei Inventor after: Sun Zhaojun Inventor after: Hu Songling Inventor after: Feng Lingang Inventor after: Wu Zhijun Inventor before: Chu Guangcheng Inventor before: Wu Zhijun Inventor before: Ma Le Inventor before: Zhao Hong Inventor before: Lin Yufen Inventor before: Luo Xiaolei Inventor before: Sun Zhaojun Inventor before: Hu Songling Inventor before: Li Mingming Inventor before: Feng Lingang |
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Address after: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee after: Zhong Shi Luoyang Mechanical Engineering Technology Co., Ltd. Address before: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee before: Zhongshi Luoyang Engineering Plastic Co., Ltd. |
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