CN104565136A - Composite nanometer brake block manufacturing method - Google Patents
Composite nanometer brake block manufacturing method Download PDFInfo
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- CN104565136A CN104565136A CN201410802422.0A CN201410802422A CN104565136A CN 104565136 A CN104565136 A CN 104565136A CN 201410802422 A CN201410802422 A CN 201410802422A CN 104565136 A CN104565136 A CN 104565136A
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- vermiculite
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- brake facing
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Abstract
The invention provides a composite nanometer brake block manufacturing method. Vermiculites have high intensity, high-temperature resistance, excellent chemical stability and excellent friction and abrasion performance. The vermiculites can achieve the effects of enhancing agents and thermal stability agents in friction-resistant materials, a brake block made of the vermiculites has good heat resistance, shearing-resistant and bending-resistant intensity and good braking effect, and the vermiculites can form nanometer composite materials with phenolic resin after being subjected or organic treatment, so that the heat-resistant performance of the phenolic resin can be improved, the brake block has the excellent high-temperature friction performance due to the addition of the resin/vermiculite materials, meanwhile, the service life of the brake shoe can be prolonged, and the heat treatment temperature in the production process is controlled, so that finished products have good mechanical intensity and physical performance.
Description
Technical field
The present invention relates to auto parts field, particularly relate to a kind of composite Nano brake facing manufacture method.
Background technology
Automobile brake sheet is also braking automobile skin, refers to the friction materials be fixed on on the brake drum of rotation of wheel or retarding disc, and friction facing wherein and lining pad bear extraneous pressure, produces rubbing effect thus reaches the object of vehicle deceleration.Along with the fast development of China's road traffic industry, automotive industry, the travel speed of automobile improves constantly, weight-carrying capacity also constantly increases, and requires that the safety braking components-brake facing of automobile will have new breakthrough in use properties.Traditional brake block friction material is mainly based on fibrous magnesium silicate, asbestos are a kind of hazardous and noxious substances, can cause physical health issues after being sucked by human body, and its wear-resisting, resistance to high-intensity performance is poor, so that cause brake facing frangible when scram, therefore easily traffic accident occurs.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of composite Nano brake flat manufacturing technique.
A kind of composite Nano brake flat manufacturing technique, its concrete steps are as follows:
(1) by resol, resin/vermiculite nano material, filler after high speed batch mixing fully mixes 3-5min, add fiber remix 1-3min; Wherein, described filler is graphite and barium sulfate, and its mass ratio is 4:1;
(2) weigh compound in mould, in the compression molding of Y7073-300A type hydraulic machine, press temperature 150-170 DEG C, pressure 25-35MPa, exit after 30s once, then heat-insulation pressure keeping 20-30min;
(3) the sample block that the demoulding is obtained is heat-treated: goods are placed in baking oven, 200 DEG C are risen to from room temperature, insulation 60-70min, then cool to 130 DEG C, insulation 60-70min, be warmed up to 400 DEG C of insulation 60-70min, cool to 155 DEG C, insulation 60-79min, is warmed up to 165 DEG C, insulation 60-79min;
(4) sample after thermal treatment is carried out grinding boring;
(5) adopt electrostatic painting process after, the processing requirement of electrostatic spraying is the rotating speed 380-400 rev/min of equipment, temperature 165-175 DEG C.
Preferably, step (1) described resin/vermiculite nano material, its manufacturing process is: resol is heated to 165-175 DEG C, after the complete melting of resin, add the vermiculite that organises, the mass ratio of resin and Organized Vermiculite is 1:5, start stirring mixer, stirring reaction 2-3h, pours out product.
Preferably, described in step (1), resin/vermiculite nano material, will be cured process before use, is about to obtained matrix material grinding and sieves, by the mass ratio of 9:1, add hexamethylenetetramine, mix, be placed in the baking oven 4-6h of 180 DEG C.
Preferably, the fiber described in step (1) for: mass ratio shared by ceramic fiber is 10-15%, mineral fibre is 30-50%, Kafra fiber is 35-60%.
Preferably, in step (2), hot pressing time controls at 7-10min.
Preferably, in step (4), grinding speed is 30-35m/s, and during grinding, control temperature is at 500-600 DEG C.
The invention difference from existing technology is that the present invention achieves following technique effect: the invention provides a kind of composite Nano brake facing manufacture method, vermiculite has high strength, high temperature resistant, fabulous chemical stability and excellent friction and wear behavior, in friction resistance material, vermiculite can play the effect of toughener and thermo-stabilizer, with the brake facing that it is made, there is good thermotolerance and shearing resistance, bending strength, good braking effect, and by vermiculite through organic-treating, itself and resol can be made to form nano composite material, thus improve the resistance toheat of resol, adding of resin/vermiculite nano material makes brake facing have excellent high temperature friction performance, improve its work-ing life simultaneously, by controlling temperature heat treated in production process, finished product is made to have good physical strength and physicals.
Embodiment
Below in conjunction with embodiment, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Embodiment 1
A kind of composite Nano brake flat manufacturing technique, its concrete steps are as follows:
(1) resol, resin/vermiculite nano material, filler (graphite and barium sulfate, its mass ratio is 4:1), after high speed batch mixing fully mixes 3min, are added fiber remix lmin;
(2) compound is weighed in mould, in the compression molding of Y7073-300A type hydraulic machine, press temperature 150 DEG C, pressure 25MPa, exits after 30s once, then heat-insulation pressure keeping 20min;
(3) heat-treated by the sample block that the demoulding is obtained: be placed on by goods in baking oven, rise to 200 DEG C from room temperature, insulation 60min, then cools to 130 DEG C, insulation 60min, is warmed up to 400 DEG C of insulation 60min, cools to 155 DEG C, insulation 60min, is warmed up to 165 DEG C, insulation 60min;
(4) sample after thermal treatment is carried out grinding boring;
(5) adopt electrostatic painting process after, the processing requirement of electrostatic spraying is the rotating speed 380 revs/min of equipment, temperature 165 DEG C.
Wherein, step (1) described resin/vermiculite nano material, its manufacturing process is: resol is heated to 165 DEG C, after the complete melting of resin, add the vermiculite that organises, the mass ratio of resin and Organized Vermiculite is 1:5, start stirring mixer, stirring reaction 2h, product is poured out, resin/vermiculite nano material described in step (1), process will be cured before use, be about to obtained matrix material grinding sieve, by the mass ratio of 9:1, add hexamethylenetetramine, mix, be placed in the baking oven 4h of 180 DEG C, fiber described in step (1) for: mass ratio shared by ceramic fiber is 15%, mineral fibre is 35%, Kafra fiber is 50%, in step (2), hot pressing time controls at 7min, in step (4), grinding speed is 30m/s, during grinding, control temperature is at 500 DEG C.
Embodiment 2
A kind of composite Nano brake flat manufacturing technique, its concrete steps are as follows:
(1) resol, resin/vermiculite nano material, filler (graphite and barium sulfate, its mass ratio is 4:1), after high speed batch mixing fully mixes 4min, are added fiber remix 2min;
(2) compound is weighed in mould, in the compression molding of Y7073-300A type hydraulic machine, press temperature 160 DEG C, pressure 305MPa, exits after 30s once, then heat-insulation pressure keeping 25min;
(3) heat-treated by the sample block that the demoulding is obtained: be placed on by goods in baking oven, rise to 200 DEG C from room temperature, insulation 65min, then cools to 130 DEG C, insulation 65min, is warmed up to 400 DEG C of insulation 65min, cools to 155 DEG C, insulation 70min, is warmed up to 165 DEG C, insulation 70min;
(4) sample after thermal treatment is carried out grinding boring;
(5) adopt electrostatic painting process after, the processing requirement of electrostatic spraying is the rotating speed 390 revs/min of equipment, temperature 170 DEG C.
Wherein, step (1) described resin/vermiculite nano material, its manufacturing process is: resol is heated to 170 DEG C, after the complete melting of resin, add the vermiculite that organises, the mass ratio of resin and Organized Vermiculite is 1:5, start stirring mixer, stirring reaction 2.5h, product is poured out, resin/vermiculite nano material described in step (1), process will be cured before use, be about to obtained matrix material grinding sieve, by the mass ratio of 9:1, add hexamethylenetetramine, mix, be placed in the baking oven 5h of 180 DEG C, fiber described in step (1) for: mass ratio shared by ceramic fiber is 10%, mineral fibre is 30%, Kafra fiber is 60%, in step (2), hot pressing time controls at 8min, in step (4), grinding speed is 32m/s, during grinding, control temperature is at 550 DEG C.
Embodiment 3
A kind of composite Nano brake flat manufacturing technique, its concrete steps are as follows:
(1) resol, resin/vermiculite nano material, filler (graphite and barium sulfate, its mass ratio is 4:1), after high speed batch mixing fully mixes 5min, are added fiber remix 3min;
(2) compound is weighed in mould, in the compression molding of Y7073-300A type hydraulic machine, press temperature 170 DEG C, pressure 35MPa, exits after 30s once, then heat-insulation pressure keeping 30min;
(3) heat-treated by the sample block that the demoulding is obtained: be placed on by goods in baking oven, rise to 200 DEG C from room temperature, insulation 70min, then cools to 130 DEG C, insulation 70min, is warmed up to 400 DEG C of insulation 70min, cools to 155 DEG C, insulation 79min, is warmed up to 165 DEG C, insulation 79min;
(4) sample after thermal treatment is carried out grinding boring;
(5) adopt electrostatic painting process after, the processing requirement of electrostatic spraying is the rotating speed 400 revs/min of equipment, temperature 175 DEG C.
Wherein, step (1) described resin/vermiculite nano material, its manufacturing process is: resol is heated to 175 DEG C, after the complete melting of resin, add the vermiculite that organises, the mass ratio of resin and Organized Vermiculite is 1:5, start stirring mixer, stirring reaction 3h, product is poured out, resin/vermiculite nano material described in step (1), process will be cured before use, be about to obtained matrix material grinding sieve, by the mass ratio of 9:1, add hexamethylenetetramine, mix, be placed in the baking oven 6h of 180 DEG C, fiber described in step (1) for: mass ratio shared by ceramic fiber is 15%, mineral fibre is 50%, Kafra fiber is 35%, in step (2), hot pressing time controls at 10min, in step (4), grinding speed is 35m/s, during grinding, control temperature is at 600 DEG C.
| Shock strength | Rockwell hardness | Wear rate | |
| Embodiment 1 | 4.21dJ/cm2 | 21HRC | 2.4% |
| Embodiment 2 | 4.85dJ/cm2 | 25HRC | 1.3% |
| Embodiment 3 | 4.42dJ/cm2 | 17HRC | 2.9% |
| Prior art index | 3.23dJ/cm2 | 14HRC | 4.1% |
Can be drawn by upper table data, in conjunction with the embodiments 1, embodiment 2 and embodiment 3, contrast existing technical indicator, all be significantly increased, when using embodiment 2 parameter, the brake facing shock strength produced is high, Rockwell hardness is high, attrition is low, is now more conducive to the production of brake facing.
The invention provides a kind of composite Nano brake flat manufacturing technique, vermiculite has high strength, high temperature resistant, fabulous chemical stability and excellent friction and wear behavior, in friction resistance material, vermiculite can play the effect of toughener and thermo-stabilizer, with the brake facing that it is made, there is good thermotolerance and shearing resistance, bending strength, good braking effect, and by vermiculite through organic-treating, itself and resol can be made to form nano composite material, thus improve the resistance toheat of resol, adding of resin/vermiculite nano material makes brake facing have excellent high temperature friction performance, improve its work-ing life simultaneously, by controlling temperature heat treated in production process, finished product is made to have good physical strength and physicals.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (6)
1. a composite Nano brake facing manufacture method, is characterized in that, its step is as follows:
(1) by resol, resin/vermiculite nano material, filler after high speed batch mixing fully mixes 3-5min, add fiber remix 1-3min; Wherein, described filler is graphite and barium sulfate, and its mass ratio is 4:1;
(2) weigh compound in mould, in the compression molding of Y7073-300A type hydraulic machine, press temperature 150-170 DEG C, pressure 25-35MPa, exit after 30s once, then heat-insulation pressure keeping 20-30min;
(3) the sample block that the demoulding is obtained is heat-treated: goods are placed in baking oven, 200 DEG C are risen to from room temperature, insulation 60-70min, then cool to 130 DEG C, insulation 60-70min, be warmed up to 400 DEG C of insulation 60-70min, cool to 155 DEG C, insulation 60-79min, is warmed up to 165 DEG C, insulation 60-79min;
(4) sample after thermal treatment is carried out grinding boring;
(5) adopt electrostatic painting process after, the processing requirement of electrostatic spraying is the rotating speed 380-400 rev/min of equipment, temperature 165-175 DEG C.
2. composite Nano brake facing manufacture method according to claim 1, it is characterized in that, step (1) described resin/vermiculite nano material, its manufacturing process is: resol is heated to 165-175 DEG C, after the complete melting of resin, adds the vermiculite that organises, the mass ratio of resin and Organized Vermiculite is 1:5, start stirring mixer, stirring reaction 2-3h, pours out product.
3. composite Nano brake facing manufacture method according to claim 1 and 2, it is characterized in that, resin/vermiculite nano material described in step (1), process will be cured before use, be about to obtained matrix material grinding sieve, by the mass ratio of 9:1, add hexamethylenetetramine, mix, be placed in the baking oven 4-6h of 180 DEG C.
4. composite Nano brake facing manufacture method according to claim 1, is characterized in that, the fiber described in step (1) for: mass ratio shared by ceramic fiber is 10-15%, mineral fibre is 30-50%, Kafra fiber is 35-60%.
5. composite Nano brake facing manufacture method according to claim 1, is characterized in that, in step (2), hot pressing time controls at 7-10min.
6. composite Nano brake facing manufacture method according to claim 1, is characterized in that, in step (4), grinding speed is 30-35m/s, and during grinding, control temperature is at 500-600 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410802422.0A CN104565136A (en) | 2014-12-23 | 2014-12-23 | Composite nanometer brake block manufacturing method |
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|---|---|---|---|
| CN201410802422.0A CN104565136A (en) | 2014-12-23 | 2014-12-23 | Composite nanometer brake block manufacturing method |
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| CN104565136A true CN104565136A (en) | 2015-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978136A (en) * | 2017-05-03 | 2017-07-25 | 阜南县邰氏宇崴运动器材有限公司 | A kind of skating shoe brake pad and its production technology |
| CN107061573A (en) * | 2017-05-03 | 2017-08-18 | 阜南县邰氏宇崴运动器材有限公司 | A kind of skating shoe asbestos friction block and its production technology |
Citations (3)
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| CN101250272A (en) * | 2008-03-25 | 2008-08-27 | 武汉理工大学 | Formaldehyde-phenol resin/vermiculite nano composite friction material and preparation method thereof |
| CN101550976A (en) * | 2009-05-22 | 2009-10-07 | 莱州鲁达刹车片有限公司 | Environment-friendly ceramic brake and manufacturing technique thereof |
| EP2607335A1 (en) * | 2010-08-17 | 2013-06-26 | Nanjing Taiwei Technology Co., Ltd. | Copper-free ceramic friction material and preparation method thereof |
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2014
- 2014-12-23 CN CN201410802422.0A patent/CN104565136A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250272A (en) * | 2008-03-25 | 2008-08-27 | 武汉理工大学 | Formaldehyde-phenol resin/vermiculite nano composite friction material and preparation method thereof |
| CN101550976A (en) * | 2009-05-22 | 2009-10-07 | 莱州鲁达刹车片有限公司 | Environment-friendly ceramic brake and manufacturing technique thereof |
| EP2607335A1 (en) * | 2010-08-17 | 2013-06-26 | Nanjing Taiwei Technology Co., Ltd. | Copper-free ceramic friction material and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 雅重庆: "酚醛树脂/蛭石纳米复合材料及其在刹车片中的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978136A (en) * | 2017-05-03 | 2017-07-25 | 阜南县邰氏宇崴运动器材有限公司 | A kind of skating shoe brake pad and its production technology |
| CN107061573A (en) * | 2017-05-03 | 2017-08-18 | 阜南县邰氏宇崴运动器材有限公司 | A kind of skating shoe asbestos friction block and its production technology |
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Application publication date: 20150429 |