CN103115098A - High-silicon aluminum alloy brake disc for motor vehicles - Google Patents
High-silicon aluminum alloy brake disc for motor vehicles Download PDFInfo
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- CN103115098A CN103115098A CN2013100583829A CN201310058382A CN103115098A CN 103115098 A CN103115098 A CN 103115098A CN 2013100583829 A CN2013100583829 A CN 2013100583829A CN 201310058382 A CN201310058382 A CN 201310058382A CN 103115098 A CN103115098 A CN 103115098A
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Abstract
A high-silicon aluminum alloy brake disc for motor vehicles is made of aluminum alloy materials by casting. The aluminum alloy materials include, by weight percent, 17-35% of silicon, 1-3% of copper, 0.3-2% of magnesium, 1-2% of nickel or chromium, and the balance of aluminum. The high-silicon aluminum alloy brake disc for motor vehicles is 50-60% lighter than the traditional iron cast brake disc and is high in thermal conductivity coefficient. During braking, the high-silicon aluminum alloy brake disc for motor vehicles is able to effectively reduce accumulation of friction heat generated in braking and shorten braking distance, the service life of the brake disc is longer, braking is more effective, and driving of motor vehicles is safer. The high-silicon aluminum alloy brake disc for motor vehicles is high in fatigue resistance and wear resistance, is effective in braking and long in service life, and is applicable to various motor vehicles.
Description
Technical field
The present invention relates to the automotive component technical field, be specifically related to the automobile-use silumin brake disc of a kind of lightweight, high-strength wearable.
Background technique
Motor Vehicle is in brake process, brake disc slows down under rubbing action fast, the huge kinetic energy of Motor Vehicle needs to dissipate at short notice, and on the frictional heat of this present brake disc of dissipation element body, hot localised points can reach 500 ℃, brake disc is bearing stronger rubbing action and thermal fatigue is impacted, cause that brake disc generates heat rapidly in brake process, therefore regard to the braking of motor-driven vehicle going process in the selecting party of brake disc material extremely important, its material should possess wear-resisting and anti-fatigue performance preferably, guarantees the working life that brake disc is long.General brake of motor-driven vehicle dish requires light weight, wear-resisting, and brake noise is little, temperature rise is low, smooth running, and require it to have very high thermal capacity to be beneficial to the Brake Energy storage, and have simultaneously good thermal conductivity to reduce temperature gradient, reduce hot spot and form.Simultaneously, the brake of motor-driven vehicle dish also requires to have: 1. stable frictional behaviour: friction factor does not change with the variation of pressure, temperature, speed and humidity; 2. good fatigue performance: the rapid heat cycle of friction surface causes quite high thermal stress, and this requires material to have fabulous heat resistanceheat resistant crackle expansion capability; 3. higher abrasion resistance properties: the third phase that forms in friction and matrix have good stickiness, guarantee that material has quite low wear rate.
Traditional brake of motor-driven vehicle dish is generally to adopt cast iron, cast steel or forged steel manufacturing, there are thermal capacity deficiency, poor thermal conductivity under the large braking force under anxiety or emergency case, easily produce the shortcomings such as heat crack and easily scrap, especially when long distance brake, the high heat of the high temperature that brake disc produces, braking strength is changed, braking strength is changed, make brake unreliable, quite dangerous; In addition, the density of the brake disc of iron-based or base steel is large, increases tare, increases the load of motor, affects the acceleration performance of automobile, does not meet the trend of present Motor Vehicle loss of weight.
Summary of the invention
Technical problem solved by the invention be to provide a kind of lightweight, thermal conductivity is high, and has the automobile-use silumin brake disc of good fatigue performance and abrasion resistance properties.
The technical solution adopted in the present invention is: automobile-use silumin brake disc, formed by the aluminium alloy stock casting, the component of described aluminium alloy stock and the weight percentage of each component are: silicon 17 ~ 35%, and copper 1 ~ 3%, magnesium 0.3 ~ 2%, nickel or chromium 1 ~ 2%, surplus is aluminium.
Described automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form.
The surface of described automobile-use silumin brake disc adopts differential arc oxidation to process.
Semi-solid-state shaping method described in the present invention refers to use the slurry of the silumin that contains non-dendrite to make the method for brake disc by techniques such as filling, forging and pressing and extruding.The fraction solid of the semisolid slurry by controlling silumin makes the semisolid slurry have high viscosity and low solidification shrinkage rate, thereby when preventing moulding, volume gas forms pore and forms shrinkage cavity when solidifying; Simultaneously prepared semisolid slurry has again mobility good and can satisfy the requirement of the silumin brake disc of various shapes; In addition, the moulding hot cracking tendency that this semi-solid-state shaping method can the decrease silumin produces because containing copper makes the described silumin can be directly and moulding efficiently, thereby reduces the fabricating cost of described silumin.
In the present invention, the surface of silumin brake disc adopts differential arc oxidation to process, and makes the surface of brake disc form one deck ceramic layer, to improve rub resistance coefficient and the wear resistance on silumin brake disc surface.Described surface by micro-arc oxidation refers on the basis of common anode oxidation, utilizes arc discharge to strengthen and activates the reaction of the generation on anode, thereby form the method for the ceramic layer of high-quality on described silumin brake disc surface.Its cardinal principle is by specific plan arc oxidation power supply, the surface of silumin brake disc to be applied high voltage, and its surperficial metal and electrolytic solution are interacted, and produces micro-arc discharge on the brake disc surface; In the micro-arc discharge process, the transient temperature on brake disc surface can reach more than 1500 ℃, the metallic material on the brake disc surface of such processing can the growth in situ densification under the effect of the factors such as high temperature, electric field, in conjunction with ceramic layer firmly.This ceramic layer can increase substantially the surface hardness of silumin, thus the corresponding wear resistance that increases substantially the brake disc surface, and this ceramic layer also can improve the corrosion resistance of brake disc simultaneously; Adopt so suitable process parameter, the differential arc oxidation that carry out on the brake disc surface of double formed solid technology preparation process can satisfy silumin resistance to wear and heat radiation aspect etc. the Environmental Conditions requirement.
The invention has the beneficial effects as follows: use the weight that silumin brake disc of the present invention can alleviate brake-system part on Motor Vehicle, compare with the brake disc of traditional cast iron and alleviate 50 ~ 60%, play energy-saving effect; And the thermal conductivity of described silumin brake disc is far above the thermal conductivity of the brake disc of cast steel commonly used at present or cast iron, raising due to thermal conductivity, the amount of heat that produces in brake process can conduct quickly, thermal shock resistance is improved, can reduce the braking temperature rise thus, thereby in brake process, can effectively reduce the frictional heat accumulation that produces because of braking process, shorten simultaneously braking distance, extend the brake disc life-span, improve the driving safety of braking effect and Motor Vehicle.Silumin brake disc of the present invention has good fatigue performance and abrasion resistance properties, and braking effect is good, long service life, can be applicable to various motor vehicle.
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Embodiment 1:
Automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form by aluminium alloy stock, and the component of described aluminium alloy stock and the weight percentage of each component are: silicon 17%, copper 3%, magnesium 0.3%, nickel 2%, aluminium 77.7%.The surface of described automobile-use silumin brake disc adopts differential arc oxidation to process.
Embodiment 2:
Automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form by aluminium alloy stock, and the component of described aluminium alloy stock and the weight percentage of each component are: silicon 35%, copper 1%, magnesium 2%, nickel 1%,, aluminium 61%.The surface of described automobile-use silumin brake disc adopts differential arc oxidation to process.
Embodiment 3:
Automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form by aluminium alloy stock, and the component of described aluminium alloy stock and the weight percentage of each component are: silicon 25%, copper 2%, magnesium 2%, chromium 1%, aluminium 70%.The surface of described automobile-use silumin brake disc adopts differential arc oxidation to process.
Embodiment 4:
Automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form by aluminium alloy stock, and the component of described aluminium alloy stock and the weight percentage of each component are: silicon 27%, copper 1.8%, magnesium 1.2%, chromium 2%,, aluminium 68%.The surface of described automobile-use silumin brake disc adopts differential arc oxidation to process.
Claims (3)
1. automobile-use silumin brake disc, formed by the aluminium alloy stock casting, it is characterized in that, the component of described aluminium alloy stock and the weight percentage of each component are: silicon 17 ~ 35%, and copper 1 ~ 3%, magnesium 0.3 ~ 2%, nickel or chromium 1 ~ 2%, surplus is aluminium.
2. automobile-use silumin brake disc according to claim 1 is characterized in that: described automobile-use silumin brake disc adopts the semi-solid-state shaping method casting to form.
3. automobile-use silumin brake disc according to claim 1, is characterized in that: the surface employing differential arc oxidation processing of described automobile-use silumin brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310058382.9A CN103115098B (en) | 2013-02-25 | 2013-02-25 | Automobile-use silumin brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310058382.9A CN103115098B (en) | 2013-02-25 | 2013-02-25 | Automobile-use silumin brake disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103115098A true CN103115098A (en) | 2013-05-22 |
| CN103115098B CN103115098B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310058382.9A Active CN103115098B (en) | 2013-02-25 | 2013-02-25 | Automobile-use silumin brake disc |
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| CN (1) | CN103115098B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623760A (en) * | 2016-11-27 | 2017-05-10 | 山东正凯机械科技有限公司 | Preparation method of micro-arc oxidation-enhanced aluminum-iron-silicon-carbon composite brake disc |
| CN111133216A (en) * | 2017-09-26 | 2020-05-08 | 法格霭德兰公司 | Disc brake |
| CN111750014A (en) * | 2019-03-27 | 2020-10-09 | 泰明顿服务责任有限公司 | Friction lining, method for producing a friction lining and use of a friction lining |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3791493A (en) * | 1970-12-05 | 1974-02-12 | Nippon Carbon Co Ltd | Friction elements for braking rotary bodies |
| CH588024A5 (en) * | 1975-03-27 | 1977-05-31 | Laeuppi Willi | Lightweight disc brakes - are made from an alloy contg. aluminium, silicon, copper, magnesium and nickel |
| GB2133094A (en) * | 1982-12-27 | 1984-07-18 | Ifa Getriebewerke Brandenburg | Cone clutch |
-
2013
- 2013-02-25 CN CN201310058382.9A patent/CN103115098B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3791493A (en) * | 1970-12-05 | 1974-02-12 | Nippon Carbon Co Ltd | Friction elements for braking rotary bodies |
| CH588024A5 (en) * | 1975-03-27 | 1977-05-31 | Laeuppi Willi | Lightweight disc brakes - are made from an alloy contg. aluminium, silicon, copper, magnesium and nickel |
| GB2133094A (en) * | 1982-12-27 | 1984-07-18 | Ifa Getriebewerke Brandenburg | Cone clutch |
Non-Patent Citations (2)
| Title |
|---|
| 吴树森: "高硅铝合金的半固态压铸成型技术", 《金属加工》 * |
| 宋希剑: "铸造高硅铝合金表面微弧氧化陶瓷层的耐磨性", 《材料保护》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623760A (en) * | 2016-11-27 | 2017-05-10 | 山东正凯机械科技有限公司 | Preparation method of micro-arc oxidation-enhanced aluminum-iron-silicon-carbon composite brake disc |
| CN106623760B (en) * | 2016-11-27 | 2018-06-19 | 山东正凯机械科技有限公司 | A kind of preparation method of the ferro-aluminum silicon-carbon composite brake discs of differential arc oxidation enhancing |
| CN111133216A (en) * | 2017-09-26 | 2020-05-08 | 法格霭德兰公司 | Disc brake |
| CN111133216B (en) * | 2017-09-26 | 2021-12-31 | 法格霭德兰公司 | Disc brake |
| CN111750014A (en) * | 2019-03-27 | 2020-10-09 | 泰明顿服务责任有限公司 | Friction lining, method for producing a friction lining and use of a friction lining |
| CN111750014B (en) * | 2019-03-27 | 2023-10-24 | 泰明顿服务责任有限公司 | Friction lining, method for producing a friction lining and use of a friction lining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103115098B (en) | 2016-04-20 |
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