CN104565148A - Machining technique of automotive brake pad - Google Patents
Machining technique of automotive brake pad Download PDFInfo
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- CN104565148A CN104565148A CN201310500219.3A CN201310500219A CN104565148A CN 104565148 A CN104565148 A CN 104565148A CN 201310500219 A CN201310500219 A CN 201310500219A CN 104565148 A CN104565148 A CN 104565148A
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- brake pad
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- brake block
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Abstract
The invention discloses a machining technique of an automotive brake pad and relates to the field of processing of automobile parts. The machining technique includes the steps of mixing of raw materials, pressure forming, thermal treatment, cutting, surface sandblasting, electrostatic spraying and painting; pressure forming with a die press allows short production cycle, high product precision and low labor intensity and is good for large-scale production; a brake pad blank is thermally treated in an electric furnace, thermal stability of the brake pad can be improved, and operating stability of the brake pad is guaranteed; electrostatic powder spraying is adopted, and spraying is uniform and efficient; the brake pad subjected to electrostatic powder spraying is put in the electric furnace, paint on the brake pad is baked, and the paint on the surface of the brake pad rarely fades at high temperature.
Description
Technical field
The present invention relates to auto parts machinery manufacture field, be specifically related to a kind of processing technology of automobile brake sheet.
Background technique
Automobile brake sheet, it is the important safety component of brake system of car, so the quality of braking effect is all embodied by brake block, the quality of brake block directly affects the braking quality of automobile, be related to the security of the lives and property of automobile driver and passenger, application number be 200710158389.2 file disclose a kind of making method of automobile brake sheet, comprise and silicon oxide powder is crushed to fineness 1200 order, silicon nitride powder is broken to fineness 1600 order, by the silica after levigate, alpha-silicon nitride powders in mass ratio 1:0.05-0.10 mixes, be heated to 1200 DEG C, powder after heating is added pressurization 10MPA in 50CM × 50CM × 20CM mould, pressurize to powder temperature is down to 700 DEG C, the product continued after Temperature fall is inorganic automobile brake sheet raw material, need Raw material processing obtained above to become suitable shape to be final products according to braking automobile design, production technology is simple, fabricating cost is low, can extensively promote, its brake block is high temperature resistant, not easily soften, ride safety of automobile can be ensured, but this processing technology can not solve, how to improve the wear resistance of brake block, the noise produced when reducing friction, how to increase the thermostability of brake block, how to make the problem that the chance high temperature that sprays paint of disc surface not easily fades.
Summary of the invention
For overcoming the deficiency in prior art, the object of the invention is to provide a kind of processing technology of automobile brake sheet.
For realizing object of the present invention, technological scheme of the present invention is as follows:
A processing technology for automobile brake sheet, described processing technology comprises the steps:
(1) raw material mixing: raw material is added stirrer mix and blend 30min-50min, described raw material comprises, nbr modified phenolic resins, foam ferrous powder, graphite, coke, Brown Alundum, heavy calcium carbonate, magnesium oxide, cashew nut shell oil Frication powder, barium sulphate, nitrile rubber powder, vermiculite power, aramid fiber and Steel Fibre.
(2) compression molding: after raw material mixes, is joined compression molding in moulding press, and molded curing 10min-15min, obtain brake block blank.
(3) heat treatment: heated by electric furnace of putting in (2), described heating-up temperature is 500 DEG C-600 DEG C, and heating time is 6h-8h.
(4) cutting: after step (3) process, brake block blank is cooled, then first on drilling machine, it is holed and chamfered, then move to deflashing and burr in polishing machine.
(5) surface sand-blasting process: handy sandblasting machine in (4) is carried out sand blast, and described sandblasting machine is the freezing sandblasting machine of vertical pellet injection formula.
(6) electrostatic spraying: after surface sand-blasting process, carries out electrostatic powder coating process to it, and the specific resistance of described powder is 1010 Ω-1016 Ω.
(7) baking vanish: put in electric furnace by gained in (6), spraying paint on baking brake block, described roasting temperature is 170 DEG C.
Preferably, the pressure of described compression molding is 18MPa-22MPa.
Preferably, described electric furnace is bench vehicle type electrical resistance furnace.
Preferably, the emitted dose of described powder is 100g/min-300g/min.
Beneficial effect of the present invention: in the course of working of automobile brake sheet, adopts nbr modified phenolic resins, foam ferrous powder, graphite, coke, Brown Alundum, heavy calcium carbonate, magnesium oxide, cashew nut shell oil Frication powder, barium sulphate, nitrile rubber powder, vermiculite power, aramid fiber and Steel Fibre etc. are as processing raw material, material wear ability is high, the noise produced during the brake block braking of producing is little, compression molding in moulding press, with short production cycle, Product Precision is high, labor intensity is little, be conducive to mass production, brake block blank is put into electric furnace heat treatment, the thermostability of brake block can be improved, thus ensure that the stability of its work, cutting is carried out to brake block, improves the usability of product, and make the profile of product more attractive in appearance, surface sand-blasting process, the efficiency in electrostatic spraying and effect can be improved, adopt electrostatic powder coating treatment process, spray paint evenly, spray efficiency is high, brake block after electrostatic powder coating process is put in electric furnace, spraying paint on baking brake block, the chance high temperature that sprays paint of disc surface can be made not easily to fade.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
embodiment 1:
A processing technology for automobile brake sheet, described processing technology comprises the steps:
(1) raw material mixing: by raw materials such as nbr modified phenolic resins, foam ferrous powder, graphite, coke, Brown Alundum, heavy calcium carbonate, magnesium oxide, cashew nut shell oil Frication powder, barium sulphate, nitrile rubber powder, vermiculite power, aramid fiber and Steel Fibres, add stirrer mix and blend 30min, material wear ability is high, and the noise produced during the brake block braking of producing is little.
(2) compression molding: after raw material mixes, is joined compression molding in moulding press, and applied pressure is 18MPa, and molded curing 10min, obtain brake block blank, with short production cycle, Product Precision is high, and labor intensity is little, is conducive to mass production.
(3) heat treatment: gained in (2) is put into bench vehicle type electrical resistance furnace and heats, heating-up temperature is 500 DEG C, and heating time is 6h, can improve the thermostability of brake block, thus ensure that the stability of its work.
(4) cutting: after step (3) process, brake block blank is cooled, then first on drilling machine, it is holed and chamfered, then move to deflashing and burr in polishing machine, can the usability of improving product, and make the profile of product more attractive in appearance.
(5) surface sand-blasting process: the freezing sandblasting machine of the handy vertical pellet injection formula of institute in (4) is carried out sand blast, the efficiency in electrostatic spraying and effect can be improved.
(6) electrostatic spraying: after surface sand-blasting process, carries out electrostatic powder coating process to it, and the specific resistance of powder is 1010 Ω, and the emitted dose of powder is 100g/min, and spray paint evenly, spray efficiency is high.
(7) baking vanish: put in bench vehicle type electrical resistance furnace by gained in (6), spraying paint on baking brake block, roasting temperature is 170 DEG C, and the chance high temperature that sprays paint of disc surface can be made not easily to fade.
embodiment 2:
All the other are identical with embodiment 1, and difference is, in described step (1), described mixing time is 50min, in described step (2), described applied pressure is 22MPa, and the time of described molded curing is 15min, in described step (3), described heating-up temperature is 600 DEG C, and described heating time is 8h, in described step (6), the specific resistance of described powder is 1016 Ω, and the emitted dose of described powder is 300g/min.
embodiment 3:
All the other are identical with embodiment 1, and difference is, in described step (1), described mixing time is 45min, in described step (2), described applied pressure is 20MPa, and the time of described molded curing is 13min, in described step (3), described heating-up temperature is 550 DEG C, and described heating time is 7h, in described step (6), the specific resistance of described powder is 1015 Ω, and the emitted dose of described powder is 200g/min.
After above-mentioned process treating, take out sample respectively, measurement result is as follows:
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Standard high-class product |
| Tolerable temperature | 611℃ | 617℃ | 619℃ | 600℃ |
| Working life | 7.11 ten thousand kilometers | 6.98 ten thousand kilometers | 7.17 ten thousand kilometers | 70000 kilometers |
Known in practical application, in the course of working of automobile brake sheet, adopt nbr modified phenolic resins, foam ferrous powder, graphite, coke, Brown Alundum, heavy calcium carbonate, magnesium oxide, cashew nut shell oil Frication powder, barium sulphate, nitrile rubber powder, vermiculite power, aramid fiber and Steel Fibre etc. are as processing raw material, material wear ability is high, the noise produced during the brake block braking of producing is little, compression molding in moulding press, with short production cycle, Product Precision is high, labor intensity is little, be conducive to mass production, brake block blank is put into electric furnace heat treatment, the thermostability of brake block can be improved, thus ensure that the stability of its work, cutting is carried out to brake block, improves the usability of product, and make the profile of product more attractive in appearance, surface sand-blasting process, the efficiency in electrostatic spraying and effect can be improved, adopt electrostatic powder coating treatment process, spray paint evenly, spray efficiency is high, brake block after electrostatic powder coating process is put in electric furnace, spraying paint on baking brake block, the chance high temperature that sprays paint of disc surface can be made not easily to fade.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a processing technology for automobile brake sheet, is characterized in that, described processing technology comprises the steps:
Raw material mixes: raw material is added stirrer mix and blend 30min-50min, described raw material comprises, nbr modified phenolic resins, foam ferrous powder, graphite, coke, Brown Alundum, heavy calcium carbonate, magnesium oxide, cashew nut shell oil Frication powder, barium sulphate, nitrile rubber powder, vermiculite power, aramid fiber and Steel Fibre;
Compression molding: after raw material mixes, is joined compression molding in moulding press, and molded curing 10min-15min, obtain brake block blank;
Heat treatment: gained in (2) is put into electric furnace and heats, described heating-up temperature is 500 DEG C-600 DEG C, and heating time is 6h-8h;
Cutting: after step (3) process, brake block blank is cooled, then first on drilling machine, it is holed and chamfered, then move to deflashing and burr in polishing machine;
Surface sand-blasting process: handy sandblasting machine in (4) is carried out sand blast, and described sandblasting machine is the freezing sandblasting machine of vertical pellet injection formula;
Electrostatic spraying: after surface sand-blasting process, carries out electrostatic powder coating process to it, and the specific resistance of described powder is 1010 Ω-1016 Ω;
Baking vanish: put in electric furnace by gained in (6), spraying paint on baking brake block, described roasting temperature is 170 DEG C.
2. the processing technology of a kind of automobile brake sheet according to claim 1, is characterized in that, in described step (2), the pressure of described compression molding is 18MPa-22MPa.
3. the processing technology of a kind of automobile brake sheet according to claim 1, is characterized in that, in described step (3) and step (7), described electric furnace is bench vehicle type electrical resistance furnace.
4. the processing technology of a kind of automobile brake sheet according to claim 1, is characterized in that, in described step (6), the emitted dose of described powder is 100g/min-300g/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500219.3A CN104565148B (en) | 2013-10-23 | 2013-10-23 | Machining technique of automotive brake pad |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310500219.3A CN104565148B (en) | 2013-10-23 | 2013-10-23 | Machining technique of automotive brake pad |
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| CN104565148A true CN104565148A (en) | 2015-04-29 |
| CN104565148B CN104565148B (en) | 2017-03-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562572A (en) * | 2015-12-28 | 2016-05-11 | 合肥中澜新材料科技有限公司 | Forging method for shifting fork used for lathe |
| CN107163913A (en) * | 2017-06-12 | 2017-09-15 | 太仓捷公精密金属材料有限公司 | It is a kind of with phenolic resin modified metal-free ceramic friction material |
| CN107327526A (en) * | 2017-07-12 | 2017-11-07 | 安徽凯密克企业管理咨询有限公司 | A kind of automobile brake sheet and its manufacture method |
| CN107830090A (en) * | 2017-12-02 | 2018-03-23 | 东莞市罗兰制动技术有限公司 | A kind of good brake block of high temperature resistant resistance performance and its manufacture craft |
| CN109182956A (en) * | 2018-09-19 | 2019-01-11 | 宁国飞鹰汽车零部件股份有限公司 | A kind of process for surface preparation improving automotive brake pads wearability |
| CN113638021A (en) * | 2021-08-27 | 2021-11-12 | 济南金麒麟刹车系统有限公司 | Antirust method of brake pad and brake pad prepared by same |
| CN114776744A (en) * | 2022-03-30 | 2022-07-22 | 枣阳风神摩擦材料有限公司 | Friction plate composite material and preparation method thereof |
| CN115502900A (en) * | 2022-10-18 | 2022-12-23 | 青岛深特机械有限公司 | Production process of gymnasium counterweight plate |
| CN115502900B (en) * | 2022-10-18 | 2024-11-05 | 青岛深特机械有限公司 | Production process of gymnasium weight stack |
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Patent Citations (6)
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| JP2000510905A (en) * | 1996-05-14 | 2000-08-22 | ユジーヌ デウッス | Friction element made of sintered material, its manufacturing method and application to railway and other brake systems |
| US20020153212A1 (en) * | 2000-08-23 | 2002-10-24 | Christian Wiaterek | Method for producing a brake shoe |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562572A (en) * | 2015-12-28 | 2016-05-11 | 合肥中澜新材料科技有限公司 | Forging method for shifting fork used for lathe |
| CN107163913A (en) * | 2017-06-12 | 2017-09-15 | 太仓捷公精密金属材料有限公司 | It is a kind of with phenolic resin modified metal-free ceramic friction material |
| CN107327526A (en) * | 2017-07-12 | 2017-11-07 | 安徽凯密克企业管理咨询有限公司 | A kind of automobile brake sheet and its manufacture method |
| CN107830090A (en) * | 2017-12-02 | 2018-03-23 | 东莞市罗兰制动技术有限公司 | A kind of good brake block of high temperature resistant resistance performance and its manufacture craft |
| CN109182956A (en) * | 2018-09-19 | 2019-01-11 | 宁国飞鹰汽车零部件股份有限公司 | A kind of process for surface preparation improving automotive brake pads wearability |
| CN113638021A (en) * | 2021-08-27 | 2021-11-12 | 济南金麒麟刹车系统有限公司 | Antirust method of brake pad and brake pad prepared by same |
| CN114776744A (en) * | 2022-03-30 | 2022-07-22 | 枣阳风神摩擦材料有限公司 | Friction plate composite material and preparation method thereof |
| CN115502900A (en) * | 2022-10-18 | 2022-12-23 | 青岛深特机械有限公司 | Production process of gymnasium counterweight plate |
| CN115502900B (en) * | 2022-10-18 | 2024-11-05 | 青岛深特机械有限公司 | Production process of gymnasium weight stack |
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| CN104565148B (en) | 2017-03-22 |
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Granted publication date: 20170322 Termination date: 20191023 |