CN1811215A - Aluminium-base friction material for brake disc of automobile and its prepn process - Google Patents
Aluminium-base friction material for brake disc of automobile and its prepn process Download PDFInfo
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- CN1811215A CN1811215A CN 200610041836 CN200610041836A CN1811215A CN 1811215 A CN1811215 A CN 1811215A CN 200610041836 CN200610041836 CN 200610041836 CN 200610041836 A CN200610041836 A CN 200610041836A CN 1811215 A CN1811215 A CN 1811215A
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- aluminum
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- 239000002783 friction material Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 54
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 42
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 229910001455 Ni+ Inorganic materials 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract 17
- 239000011812 mixed powder Substances 0.000 claims abstract 7
- 229910052759 nickel Inorganic materials 0.000 claims description 30
- 238000005245 sintering Methods 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 7
- 239000006104 solid solution Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000007787 solid Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 239000012467 final product Substances 0.000 description 8
- 238000000748 compression moulding Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 238000009702 powder compression Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003831 antifriction material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VMWYVTOHEQQZHQ-UHFFFAOYSA-N methylidynenickel Chemical compound [Ni]#[C] VMWYVTOHEQQZHQ-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Powder Metallurgy (AREA)
- Braking Arrangements (AREA)
Abstract
汽车刹车片用铝基摩擦材料及其制备工艺，首先将Cu，Zn，Mg，Ni+C和Al粉末在150－200℃真空加热炉中烘干1－2小时，SiC陶瓷粉末在650－850℃烘干1－2小时；然后，按重量百分比将1.5－2.0％的Cu，5.0－7.0％的Zn，2.0－3.0％的Mg，4.0－6.0％的Ni+C，5－10％的SiC和Al粉末混合均匀，将混合均匀的粉末在200－500MPa下压制成型后在350－400℃下进行1小时，450－500℃下进行1小时，550－600℃下进行2小时，出炉冷却至室温即可；对需高强度的产品可再采用450－500℃下进行4小时固溶，160－180℃下进行12小时进行固溶－时效处理。按本发明的制备方法制得的铝基摩擦材料在－40℃～350℃工作温度范围内无冷脆和热衰退现象、密度ρ≤3.0g/cm3。Aluminum-based friction material for automobile brake pads and its preparation process. First, Cu, Zn, Mg, Ni+C and Al powders are dried in a vacuum heating furnace at 150-200°C for 1-2 hours, and SiC ceramic powders are dried at 650-850°C. ℃ drying for 1-2 hours; then, by weight percentage, 1.5-2.0% Cu, 5.0-7.0% Zn, 2.0-3.0% Mg, 4.0-6.0% Ni+C, 5-10% SiC Mix evenly with Al powder, press the mixed powder at 200-500MPa and then press at 350-400°C for 1 hour, at 450-500°C for 1 hour, at 550-600°C for 2 hours, take out the furnace and cool to Room temperature is enough; for products requiring high strength, it can be solid-solutioned at 450-500°C for 4 hours, and solid-solution-aging at 160-180°C for 12 hours. The aluminum-based friction material prepared according to the preparation method of the present invention has no cold brittleness and thermal recession phenomenon in the working temperature range of -40°C to 350°C, and has a density ρ≤3.0g/cm 3 .
Description
Technical field
The invention belongs to material engineering, particularly a kind of automobile brake sheet aluminum matrix composite and preparation process thereof.
Technical background
The automobile brake strip is security personnel's part, is easily damaged parts again, occupies special consequence at automobile in material.Because the character of heat-fading of the asbestos-based friction material that tradition is used big (raise with operating temperature, friction factor sharply reduces), and be again strong carcinogen, the ban before 10 years makes it stop producing and using.
Studying at present and using at most is semimetal friction material.Though semimetal friction material is than the asbestos friction material superior performance, but because the organic fill in the semimetal friction material is subjected to the influence of heat energy effect in processing and use, the crosslinked of macromolecular chain and degraded can take place and cause sharp wear, when temperature rise is big (greater than 150 ℃), even can produce fusing and decomposing phenomenon, its operating temperature range is little.
The another kind of material that some research is selected for use is the aluminum matrix composite that ceramic particle (for example SiC) strengthens.Though this kind material can improve its wear resistance by increasing the quantity that strengthens body, also can aggravate grinding the wearing and tearing between pair simultaneously.In addition, under the frequent braking condition of high speed, strengthen the peeling off of body, fragmentation also can be quickened both wearing and tearing.
With the harshnessization of means of transportation high performance such as automobile and service condition, need badly a kind ofly do not contain hazardous substance, operating temperature is high and do not have the heat fade phenomenon, the wear resistant friction reducing performance is good and the pair of rubbing is had good protection effect, the simple automobile brake sheet new-type friction material of preparation process.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of high wear resistance that has is provided, simultaneously the pair of rubbing is also had good protective action, and do not contain the aluminium-base friction material for brake disc of automobile and the preparation process thereof of asbestos.
For achieving the above object, the technical solution used in the present invention is: at first with Cu, and Zn, Mg, Ni+C and Al powder were dried 1-2 hour in 150-200 ℃ of vacuum furnace, and the SiC ceramic powder was 650-850 ℃ of oven dry 1-2 hour; Then, by weight percentage with the Cu of 1.5-2.0%, the Zn of 5.0-7.0%, the Mg of 2.0-3.0%, the Ni+C of 4.0-6.0%, the SiC of 5-10% and Al powder are even, wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 200-500MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification: carried out under 350-400 ℃ 1 hour, and carried out 1 hour under 450-500 ℃, carried out 2 hours under 550-650 ℃, coming out of the stove is cooled to room temperature and gets final product; Can carry out solid solution in 4 hours to the high-intensity product of need under 450-500 ℃, water-cooled is carried out 12 hours timeliness under 160-180 ℃, comes out of the stove to be cooled to room temperature and to get final product.
The composition of the aluminium-base friction material that makes according to preparation method of the present invention is the Cu of 1.5-2.0% by weight percentage, the Zn of 5.0-7.0%, and the Mg of 2.0-3.0%, the Ni of 3.0-4.5%, the SiC of 5-10%, the C of 1.0-1.5%, all the other are Al.
The present invention 650-850 ℃ of following pre-oxidation treatment, can make the SiC surface generate SiO in the SiC powder
2Film effectively solves coming off of SiC in use to increase interface bond strength; Adopt the segmented sintering process, solve low melting point and volatile metal (as Mg, watery fusion Zn) and volatilization and the sintering defective and the sintering cavity of causing are improved the intensity of matrix and wear resistance; With Ni+C is anti-attrition and anti-friction agent, with wear resistance and its friction factor of adjustment that improves material.
Embodiment
Embodiment 1, at first is 200-400 purpose Cu with granularity, Zn, and Mg, Al and Ni+C (nickel carbon containing) powder was dried 1 hour in 180 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 650 ℃ of oven dry 2 hours; Then, by weight percentage with 1.8% Cu, 6.0% Zn, 2.0% Mg, 4.0% (Ni+C), 6% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 300MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification: under 350 ℃, carried out 1 hour, and carried out 1 hour under 500 ℃, carried out 2 hours under 600 ℃, come out of the stove and be cooled to room temperature and get final product, the composition of the aluminium-base friction material that makes is 1.8% Cu by weight percentage, 6.0% Zn, 2.0% Mg, 3.0% Ni, 1.0% C, 6% SiC, surplus is Al.
Embodiment 2, at first are 200-400 purpose Cu with granularity, Zn, and Mg, Al and Ni+C powder were dried 1.5 hours in 160 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 720 ℃ of oven dry 1.3 hours; Then, by weight percentage with 1.6% Cu, 5.5% Zn, 3.0% Mg, 4.5% Ni+C, 9% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 500MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification: under 400 ℃, carried out 1 hour, and carried out 1 hour under 450 ℃, carried out 2 hours under 550 ℃, come out of the stove and be cooled to room temperature and get final product, the composition of the aluminium-base friction material that makes is 1.6% Cu by weight percentage, 5.5% Zn, 3.0% Mg, 3.37% Ni, 1.13% C, 9% SiC, surplus is Al.
Embodiment 3, at first are 200-400 purpose Cu with granularity, Zn, and Mg, Al and Ni+C powder were dried 1.8 hours in 200 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 800 ℃ of oven dry 1.5 hours; Then, by weight percentage with 2.0% Cu, 6.5% Zn, 2.6% Mg, 5.0% Ni+C, 7% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 200MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification: under 380 ℃, carried out 1 hour, carried out under 475 ℃ 1 hour, and carried out 2 hours under 600 ℃, coming out of the stove is cooled to room temperature and gets final product, the composition of the aluminium-base friction material that makes is 2.0% Cu by weight percentage, 6.5% Zn, 2.6% Mg, 3.75% Ni, 1.25% C, 7% SiC, surplus are Al.
Embodiment 4, at first are 200-400 purpose Cu with granularity, Zn, and Mg, Ni+C, Al powder were dried 2 hours in 170 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 750 ℃ of oven dry 1.8 hours; Then, by weight percentage with 1.7% Cu, 5.0% Zn, 2.3% Mg, 5.5% Ni+C, 10.0% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 400MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification: under 360 ℃, carried out 1 hour, and carried out 1 hour under 486 ℃, carried out 2 hours under 580 ℃, come out of the stove and be cooled to room temperature and get final product, the composition of the aluminium-base friction material that makes is 1.7% Cu by weight percentage, 5.0% Zn, 2.3% Mg, 4.12% Ni, 1.38% C, 10% SiC, surplus is Al.
Embodiment 5, at first are 200-400 purpose Cu with granularity, Zn, and Mg, Ni+C powder and Al powder were dried 1.3 hours in 150 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 850 ℃ of oven dry 1 hour; Then, by weight percentage with 1.9% Cu, 7.0% Zn, 2.5% Mg, 6% Ni+C, 5% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 350MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification; Adopt solid solution aging to handle to the high-intensity product of need, carry out solid solution in 4 hours under 450 ℃, water-cooled is carried out 12 hours timeliness under 160 ℃, comes out of the stove to be cooled to room temperature and to get final product.The composition of the aluminium-base friction material that makes is 1.9% Cu by weight percentage, 7.0% Zn, and 2.5% Mg, 1.5% C, 4.5% Ni, 5% SiC, surplus is Al.
Embodiment 6, at first are 200-400 purpose Cu with granularity, Zn, and Mg, Ni+C powder and Al powder were dried 1.6 hours in 190 ℃ of vacuum furnaces, and granularity is that 200-400 purpose SiC ceramic powder was 700 ℃ of oven dry 1.6 hours; Then, by weight percentage with 1.5% Cu, 6.8% Zn, 2.1% Mg, 5.8% Ni+C powder, 8% SiC and Al powder are even, and wherein the mass ratio of Ni and C is 3: 1 among the Ni+C, with the powder compression moulding under 450MPa that mixes; The base substrate of compression moulding is placed the oven sintering, be sintered to stage intensification; Adopt solid solution aging to handle to the high-intensity product of need, carry out solid solution in 4 hours under 500 ℃, water-cooled is carried out 12 hours timeliness under 180 ℃, comes out of the stove to be cooled to room temperature and to get final product.The composition of the aluminium-base friction material that makes is 1.5% Cu by weight percentage, 6.8% Zn, and 2.1% Mg, 1.5% C, 4.3% Ni, 8% SiC, surplus is Al.
Simple, cheap, the raw-material standard-required of preparation method's technology of the present invention low (general industry standard), need not the technical advantage of special equipment, have high wear-resisting, antifriction performance simultaneously, have good performance of heat dissipation, wide operating temperature range, do not have the performance advantage of low temperature brittleness and heat fade phenomenon.The automotive friction material of the present invention's preparation is compared with friction material with existing like products, because material of the present invention does not contain asbestos etc. environment especially shop floor worker there are not the element and the raw material of serious harm, therefore can not pollute and line producers are caused health hazard environment; Do not contain organic Bond in the material of the present invention, so compare with present semimetal friction material, serviceability temperature height, mechanical property are good; And main raw material is a fine aluminium, perfect heat-dissipating, no low temperature brittleness; Choose increase grinding agent be the intermetallic compounds that generates in a small amount of SiC and the sintering reaction (Al Cu Mg Zn), anti-friction agent is C (graphite).
The aluminium-base friction material that makes by preparation method of the present invention is no cold short and heat fade phenomenon, density p≤3.0g/cm in-40 ℃～350 ℃ operating temperature ranges
3
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100418361A CN100365314C (en) | 2006-02-27 | 2006-02-27 | Aluminum-based friction material for automobile brake pads and its preparation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100418361A CN100365314C (en) | 2006-02-27 | 2006-02-27 | Aluminum-based friction material for automobile brake pads and its preparation process |
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| Publication Number | Publication Date |
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| CN1811215A true CN1811215A (en) | 2006-08-02 |
| CN100365314C CN100365314C (en) | 2008-01-30 |
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| CNB2006100418361A Expired - Fee Related CN100365314C (en) | 2006-02-27 | 2006-02-27 | Aluminum-based friction material for automobile brake pads and its preparation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209522A (en) * | 2014-09-12 | 2014-12-17 | 北京新立机械有限责任公司 | Method of producing aluminum-based silicon carbide parts with high volume fraction |
| CN104561845A (en) * | 2014-12-22 | 2015-04-29 | 青岛麦特瑞欧新材料技术有限公司 | Aluminum matrix composite for preparing automobile brake disc |
| CN109022846A (en) * | 2018-08-21 | 2018-12-18 | 周凡 | A kind of preparation method of aluminum-base composite brake disc |
| CN113061790A (en) * | 2021-03-16 | 2021-07-02 | 西安交通大学 | Mg-Zn-Ni ternary magnesium alloy material with wide corrosion rate range |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4058769B2 (en) * | 1996-11-08 | 2008-03-12 | 住友金属工業株式会社 | Composite materials for railway vehicle brake discs |
| DE10131769C5 (en) * | 2001-06-30 | 2010-02-18 | Audi Ag | Brake system with composite brake disc |
| US20050166708A1 (en) * | 2002-03-05 | 2005-08-04 | Gerd Meier | Metal-ceramic composites for tribological uses and defined sliding/friction pairs based on said materials |
| CN100406598C (en) * | 2003-09-12 | 2008-07-30 | 吉林大学 | Composite material for automobile brake disc and preparation method thereof |
-
2006
- 2006-02-27 CN CNB2006100418361A patent/CN100365314C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209522A (en) * | 2014-09-12 | 2014-12-17 | 北京新立机械有限责任公司 | Method of producing aluminum-based silicon carbide parts with high volume fraction |
| CN104209522B (en) * | 2014-09-12 | 2018-07-27 | 北京新立机械有限责任公司 | A kind of high body part aluminum-base silicon carbide part production method |
| CN104561845A (en) * | 2014-12-22 | 2015-04-29 | 青岛麦特瑞欧新材料技术有限公司 | Aluminum matrix composite for preparing automobile brake disc |
| CN109022846A (en) * | 2018-08-21 | 2018-12-18 | 周凡 | A kind of preparation method of aluminum-base composite brake disc |
| CN113061790A (en) * | 2021-03-16 | 2021-07-02 | 西安交通大学 | Mg-Zn-Ni ternary magnesium alloy material with wide corrosion rate range |
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| Publication number | Publication date |
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| CN100365314C (en) | 2008-01-30 |
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