CN101493127A - Copper-based powder metallurgy high speed brake lining - Google Patents
Copper-based powder metallurgy high speed brake lining Download PDFInfo
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- CN101493127A CN101493127A CNA2008100689697A CN200810068969A CN101493127A CN 101493127 A CN101493127 A CN 101493127A CN A2008100689697 A CNA2008100689697 A CN A2008100689697A CN 200810068969 A CN200810068969 A CN 200810068969A CN 101493127 A CN101493127 A CN 101493127A
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Abstract
The invention provides a copper based powder metallurgy high speed brake lining, which comprises a steel backing, a brake block, a framework, a spring washer and a swollen tail block. In the course of braking, the brake lining has smaller abrasion loss and can effectively prevent the edge dropping, angle dropping and camber wear of the brake block. The brake block uses copper based powder metallurgy friction material; copper powder, iron powder, tin powder, chromium powder, titanium powder, nickel powder, bismuth meal, graphite, boron nitride, aluminum oxide, silicon dioxide, zirconite and the like are well blended according to the proportion, stamped and sintered on the framework after cold pressing. The copper based powder metallurgy high speed brake lining has the characteristics of high mechanical strength, good thermal conduction, good thermal stability, strong heat-resistant fade performance, long service life, small abrasion on a retarding disc and stable friction performance and the like, and can effectively control very high way trains with 200-300km/h per hour.
Description
Technical field
The present invention relates to the bullet train braking device, particularly relate to a kind of copper-based powder metallurgy high speed brake lining.
Background technique
The high speed brake lining is matched in the rail motor set bogie, is braking member important in braking device and the braking system.Brake disc and brake lining are the friction pair original papers of disc braking system, and its braking ability depends primarily on the material and the performance of brake lining and brake disc.During high-speed train braking, the temperature of brake disc and brake lining is up to more than 500 ℃, instantaneously reach 1000 ℃, because powder metallurgy friction material has stable friction factor, good wear resistance and heat resistance, lower advantages such as cost of production, this domain expert and manufacturer extensively carry out the development work of powder metallurgy high speed brake lining both at home and abroad.
Powder metallurgy high speed brake lining of the prior art is in the train braking process, because brake disc and powder metallurgy brake block frictional surface temperature height, powder metallurgy brake block periphery easily produces and becomes limit arrisdefect phenomenon, wear extent is big, brake steady inadequately, friction factor is low, and stopping distance is long, and when braking brake lining the eccentric wear phenomenon outstanding.
For solving above-mentioned deficiency, someone wraps powder metallurgy brake block side the bound edge of thin plate or guipure formation brake block, the brake block of this structure has significantly reduced the friction area of powder metallurgy friction material, cause with the energy that absorbs on the powder metallurgy brake block unit area under uniform velocity and the retardation pressure bigger, cause brake disc and powder metallurgy brake block frictional surface temperature too high, increase the wearing and tearing of brake disc and powder metallurgy brake block, reduce the thermal stability of powdered metallurgical material, reduce the working life of brake disc and high speed brake lining, and the eccentric wear phenomenon is still very serious.
Summary of the invention
The technical problem that solves
For addressing the above problem, the invention provides copper-based powder metallurgy high speed brake lining, can effectively solve problems such as piece, arrisdefect, eccentric wear, have less frictional behaviour dispersion, higher wear resistance, less abrasion simultaneously, and the wearing and tearing to brake disc are little, have good heat conductivity, stable work in work when having oil, water and snow etc. to exist, the variation of break-in degree, temperature and weather is little, free from environmental pollution to the frictional behaviour influence.
Technological scheme
As depicted in figs. 1 and 2, copper-based powder metallurgy high speed brake lining provided by the invention is made of steel backing 1, brake block 2, skeleton 7, dovetails 3, resilient pad 4, rivet 5; Steel backing 1 is processed with the through hole in order to riveted joint resilient pad and brake block, through hole one side chamfering; Skeleton 7 is processed with in order to the through hole of rivet to be installed; Brake block 2 as friction piece by powder metallurgy friction material by certain prescription after colding pressing molding sintering on skeleton 7, brake block 2 in the molding sintering process, form in order to the diameter of through hole that rivet is installed through-hole diameter greater than skeleton 7; The brake block 2 on skeleton 7 is riveted on the side that steel backing 1 through hole does not have chamfering by through hole with resilient pad 4 and sintering to utilize rivet 5; Dovetails 3 is an intermediate projections, and two ends are crooked gradually recessed, and the terminal tabular W shape structure of bend relief is again processed through hole on recessed position, be welded on the side that steel backing 1 through hole has chamfering by through hole.
Material prescription weight percentage ranges as the brake block 2 of friction piece is:
Copper powder 50～70, bismuth meal 2～5, graphite granule 5～11, boron nitride 1～4, glass putty 4～8, chromium powder 1～5, titanium valve 1～5, nickel powder 2～6, iron powder 3～8, aluminium sesquioxide 2～6, silica 3～8, zircon 2～7.
The material prescription weight percentage ranges of brake block 2 can be preferably:
Copper powder 55～60, bismuth meal 2～4, graphite granule 8～10, boron nitride 1～2, glass putty 5～7, chromium powder 2～4, titanium valve 1～3, nickel powder 2～4, iron powder 5～7, aluminium sesquioxide 2～4, silica 5～7, zircon 4～6.
The weight percentage of brake block 2 material optimization formulas is:
Copper powder 55, bismuth meal 2, graphite granule 9, boron nitride 1, glass putty 5, chromium powder 2, titanium valve 2, nickel powder 4, iron powder 6, aluminium sesquioxide 3, silica 6, zircon 5.
Beneficial effect
Jack horse test bed test result showed that wear extent is 0.284cm3/MJ, meets the requirement of high speed brake lining service behaviour to copper-based powder metallurgy high speed brake lining disclosed by the invention at 1: 1, and promptly wear extent is not more than 0.35cm3/MJ; Under various speed and pressure, friction factor high and stablize, dispersion is less, friction factor is in 0.30～0.45 scope; Brake block is owing to adopt the copper based powder metallurgy material molding sintering, and density has reached 5.8g/cm3, and thermal conductivity is better; High-temperature stability is good, and by the continuous high temperature retardation test, the suffered influence of material friction performance is less; Spark is little, and curve is steady, and p-ratio is less; Moisture test is less to the material property influence.
Problems such as this copper-based powder metallurgy high speed brake lining is used for the braking system of bullet train, causes friction factor low owing to temperature is too high when the powder metallurgy friction material prescription of employing has solved brake, and wear extent is big have improved braking efficiency; Brake block fell piece, arrisdefect and low problem of brake block life-span when employing brake block shape as shown in Figure 1 efficiently solved brake; Adopt intensity height, little butterfly pad or the opening resilient pad of deformation to solve the problem of rubbing partially.This copper-based powder metallurgy high speed brake lining has also improved the working life of brake disc, steadily and effectively the bullet train of retro-speed more than 200km/h in raising self usability with in the life-span.
The brake block of this copper-based powder metallurgy high speed brake lining belongs to easily-consumed products, under the situation of brake block serious wear, can remove dovetails 3, bore rivet 5, again rivet new brake block 5, welding dovetails 3, thereby can save huge social resource and product cost.
Description of drawings
Fig. 1 is a copper-based powder metallurgy high speed brake lining plan view of the present invention;
Fig. 2 is Fig. 1 copper-based powder metallurgy high speed brake lining A-A sectional view.
Embodiment
The present invention mainly is made of steel backing 1, brake block 2, dovetails 3, resilient pad 4, rivet 5, describe one embodiment of the present invention in detail below in conjunction with accompanying drawing 1 and accompanying drawing 2, certainly its mode of execution is not that only this is a kind of, according to this specification, those skilled in the art can reproduce copper-based powder metallurgy high speed brake lining provided by the invention without any need for creative work.
15 through holes of steel backing 1 processing, each through hole is respectively at an identical side chamfering, in order to utilizing rivet 5 that skeleton 7, resilient pad 4 and brake block 2 are fixed on the side that steel backing 1 through hole does not have chamfering, thereby be unlikely to make rivet head to be given prominence on the surface of steel backing 1; Be processed with on the skeleton 7 three with the position of the through hole of steel backing 1, the through hole that diameter adapts, the powdered metallurgical material brake block that mold pressing forms after colding pressing 2 sintering that one of according to the form below prescription is mixed are on skeleton 7, and the through-hole diameter that brake block 2 forms through mold pressing should be greater than the through-hole diameter of skeleton 1 in order to install rivet 5; Utilize rivet 5 that resilient pad 4 is fixed between five brake block 2 and the steel backing 1, make the first end of rivet 5 rivets be fixed on the side that steel backing 1 through hole has chamfering, the other end of rivet 5 is suppressed distortion, concern with fixing steel backing 1, resilient pad 4, skeleton 7 and with position between the skeleton 7 sintering brake block 2 together; Resilient pad 4 is selected intensity height on the market, little butterfly pad or the opening resilient pad of deformation for use; Dovetails 4 is crooked gradually recessed, the terminal tabular W shape structures of bend relief again in intermediate projections, the two ends through being stamped to form, recessed position respectively processes 6 through holes at its two place, form solder joint 6 by through hole dovetails 3 is welded on the side that steel backing 1 through hole has chamfering, solder joint 6 needn't necessarily be avoided the rivet head of rivet 5.
The preferred material prescription of the powder metallurgy friction piece of described brake block 2 and weight percent content can be following table one of prescription arbitrarily:
| Copper powder | Bismuth meal | Graphite granule | Boron nitride | Glass putty | Chromium powder | Titanium valve | Nickel powder | Iron powder | Aluminium sesquioxide | Silica | | |
| Prescription | ||||||||||||
| 1 | 55 | 2 | 9 | 1 | 5 | 2 | 2 | 4 | 6 | 3 | 6 | 5 |
| |
60 | 3 | 8 | 2 | 6 | 2 | 1 | 2 | 5 | 2 | 5 | 4 |
| |
65 | 4 | 7 | 3 | 4 | 1 | 1 | 3 | 4 | 2 | 3 | 3 |
Described steel backing 1, dovetails 3, adopt toughness steel preferably, for example Q235B as far as possible; The shape of dovetails is formed by punching press; Skeleton 7 can adopt common steel, for example No. 20 steel.
The quantity of the number of above-mentioned brake block, shape, various through holes and steel backing 1, dovetails 3, Steel Type that skeleton 7 adopted etc. only are specific embodiments of the present invention, and adjustment and the change carried out in the concrete process of implementing all belong to scope disclosed by the invention.
Claims (8)
1, a kind of copper-based powder metallurgy high speed brake lining is characterized in that: copper-based powder metallurgy high speed brake lining is made of steel backing (1), brake block (2), skeleton (7), dovetails (3), resilient pad (4) and rivet (5).
2, copper-based powder metallurgy high speed brake lining according to claim 1 is characterized in that: steel backing (1) and have between the skeleton (7) of brake block (2) resilient pad (4) is installed.
3, copper-based powder metallurgy high speed brake lining according to claim 2 is characterized in that: described resilient pad (4) is butterfly pad or opening resilient pad.
4, copper-based powder metallurgy high speed brake lining according to claim 1 is characterized in that: the material prescription weight percentage ranges of brake block (2) is:
Copper powder 50～70, bismuth meal 2～5, graphite granule 5～11, boron nitride 1～4, glass putty 4～8, chromium powder 1～5, titanium valve 1～5, nickel powder 2～6, iron powder 3～8, aluminium sesquioxide 2～6, silica 3～8, zircon 2～7.
5, copper-based powder metallurgy high speed brake lining according to claim 4 is characterized in that: the preferred material formulation weight percentage range of brake block (2) is:
Copper powder 55～60, bismuth meal 2～4, graphite granule 8～10, boron nitride 1～2, glass putty 5～7, chromium powder 2～4, titanium valve 1～3, nickel powder 2～4, iron powder 5～7, aluminium sesquioxide 2～4, silica 5～7, zircon 4～6.
6, copper-based powder metallurgy high speed brake lining according to claim 4 is characterized in that: the preferred material formulation weight percentage of brake block (2) is:
Copper powder 55, bismuth meal 2, graphite granule 9, boron nitride 1, glass putty 5, chromium powder 2, titanium valve 2, nickel powder 4, iron powder 6, aluminium sesquioxide 3, silica 6, zircon 5.
7, copper-based powder metallurgy high speed brake lining according to claim 4 is characterized in that: the preferred material formulation weight percentage of brake block (2) is:
Copper powder 60, bismuth meal 3, graphite granule 8, boron nitride 2, glass putty 6, chromium powder 2, titanium valve 1, nickel powder 2, iron powder 5, aluminium sesquioxide 2, silica 5, zircon 4.
8, copper-based powder metallurgy high speed brake lining according to claim 4 is characterized in that: the preferred material formulation weight percentage of brake block (2) is:
Copper powder 65, bismuth meal 4, graphite granule 7, boron nitride 3, glass putty 4, chromium powder 1, titanium valve 1, nickel powder 3, iron powder 4, aluminium sesquioxide 2, silica 3, zircon 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810068969 CN101493127B (en) | 2008-10-31 | 2008-10-31 | Copper-based powder metallurgy high speed brake lining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810068969 CN101493127B (en) | 2008-10-31 | 2008-10-31 | Copper-based powder metallurgy high speed brake lining |
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| CN101493127A true CN101493127A (en) | 2009-07-29 |
| CN101493127B CN101493127B (en) | 2012-12-12 |
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| CN 200810068969 Expired - Fee Related CN101493127B (en) | 2008-10-31 | 2008-10-31 | Copper-based powder metallurgy high speed brake lining |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839295A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | High speed train powder metallurgy brake pad and preparation technology thereof |
| CN101975234A (en) * | 2010-10-18 | 2011-02-16 | 常州市铁马科技实业有限公司 | Train brake lining with adjuster |
| CN102011043A (en) * | 2010-12-30 | 2011-04-13 | 北京瑞斯福科技有限公司 | Preparation method of powder metallurgy material for train brake pad |
| CN102155505A (en) * | 2011-04-12 | 2011-08-17 | 中国铁道科学研究院金属及化学研究所 | Brake plate of train speed reducer and manufacturing method thereof |
| CN102537160A (en) * | 2010-12-22 | 2012-07-04 | 吴佩芳 | Mounting structure for brake pads of motor train unit |
| CN102537158A (en) * | 2010-12-22 | 2012-07-04 | 吴佩芳 | Mounting structure for powder metallurgy brake pad of high-speed train |
| CN102588473A (en) * | 2011-04-02 | 2012-07-18 | 吴佩芳 | Installation steel backing for powder metallurgy brake pad of rapid train |
| CN103032499A (en) * | 2012-12-19 | 2013-04-10 | 重庆红宇摩擦制品有限公司 | Automotive brake friction plate made of hexagonal-crystal-system boron nitride and preparation method thereof |
| CN103131389A (en) * | 2013-03-19 | 2013-06-05 | 长春工业大学 | Environment-friendly high-wear-resistance wind power braking friction plate material |
| CN103671656A (en) * | 2013-12-24 | 2014-03-26 | 刘伟 | High-speed train and rail transit vehicle brake pad |
| CN103697091A (en) * | 2014-01-03 | 2014-04-02 | 大连交通大学 | Embedded brake pad |
| CN104353836A (en) * | 2014-07-14 | 2015-02-18 | 大连大学 | Preparation method of Fe-20wt%Cu based brake material |
| CN105063459A (en) * | 2015-07-20 | 2015-11-18 | 广西民族大学 | Copper-based powder metallurgy friction material for high-speed train braking and preparation method thereof |
| CN106351993A (en) * | 2016-08-29 | 2017-01-25 | 贵州新安航空机械有限责任公司 | Powder metallurgy brake lining for high speed train and preparing method thereof |
| CN106907413A (en) * | 2017-02-20 | 2017-06-30 | 湖南博科瑞新材料有限责任公司 | A kind of low antiwear magnetic wipes composite and preparation method thereof, magnetic suspension train brake shoes and magnetic suspension train brake block |
| CN107956821A (en) * | 2017-11-30 | 2018-04-24 | 万向钱潮（上海）汽车系统有限公司 | A kind of steel back structure of low eccentric wear |
| CN108425975A (en) * | 2018-03-30 | 2018-08-21 | 中铁隆昌铁路器材有限公司 | A kind of middle low speed EMU powder metallurgy brake pad and its installation method |
| CN110375023A (en) * | 2019-07-05 | 2019-10-25 | 武汉理工大学 | A kind of environmental-friendly, micronic dust low noise novel high-speed rail brake block and preparation method thereof |
| TWI680188B (en) * | 2017-04-10 | 2019-12-21 | 日商日本製鐵股份有限公司 | Sintered friction material |
| CN111779781A (en) * | 2020-07-08 | 2020-10-16 | 北京浦然轨道交通科技股份有限公司 | Brake pad and manufacturing method thereof |
| CN111961912A (en) * | 2020-08-26 | 2020-11-20 | 中南大学 | Copper-based powder metallurgy friction material for high-energy braking |
| CN112413023A (en) * | 2020-11-20 | 2021-02-26 | 贵州新安航空机械有限责任公司 | Processing method of sheet powder metallurgy brake disc |
| CN112555310A (en) * | 2020-12-09 | 2021-03-26 | 安阳工学院 | Powder metallurgy copper-based friction block and preparation method thereof |
| US11534829B2 (en) | 2017-04-07 | 2022-12-27 | Nippon Steel Corporation | Sintered friction material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1261780B (en) * | 1993-04-05 | 1996-06-03 | DISC BRAKE PAD WITH SINTERED FRICTION ELEMENTS. | |
| CN2580204Y (en) * | 2002-10-28 | 2003-10-15 | 陈怀荣 | Brake shoe for high speed railway vehicle |
| CN200993181Y (en) * | 2007-01-04 | 2007-12-19 | 北京华夏友联电气化新技术发展有限公司 | Constant-pressure disc brake device |
-
2008
- 2008-10-31 CN CN 200810068969 patent/CN101493127B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839295A (en) * | 2010-05-31 | 2010-09-22 | 山东金麒麟集团有限公司 | High speed train powder metallurgy brake pad and preparation technology thereof |
| CN101975234A (en) * | 2010-10-18 | 2011-02-16 | 常州市铁马科技实业有限公司 | Train brake lining with adjuster |
| CN102537160A (en) * | 2010-12-22 | 2012-07-04 | 吴佩芳 | Mounting structure for brake pads of motor train unit |
| CN102537158A (en) * | 2010-12-22 | 2012-07-04 | 吴佩芳 | Mounting structure for powder metallurgy brake pad of high-speed train |
| CN102011043A (en) * | 2010-12-30 | 2011-04-13 | 北京瑞斯福科技有限公司 | Preparation method of powder metallurgy material for train brake pad |
| CN102011043B (en) * | 2010-12-30 | 2012-07-25 | 北京瑞斯福科技有限公司 | Preparation method of powder metallurgy material for train brake pad |
| CN102588473A (en) * | 2011-04-02 | 2012-07-18 | 吴佩芳 | Installation steel backing for powder metallurgy brake pad of rapid train |
| CN102155505A (en) * | 2011-04-12 | 2011-08-17 | 中国铁道科学研究院金属及化学研究所 | Brake plate of train speed reducer and manufacturing method thereof |
| CN103032499A (en) * | 2012-12-19 | 2013-04-10 | 重庆红宇摩擦制品有限公司 | Automotive brake friction plate made of hexagonal-crystal-system boron nitride and preparation method thereof |
| CN103032499B (en) * | 2012-12-19 | 2015-03-04 | 重庆红宇摩擦制品有限公司 | Automotive brake friction plate made of hexagonal-crystal-system boron nitride and preparation method thereof |
| CN103131389B (en) * | 2013-03-19 | 2014-08-06 | 长春工业大学 | Environment-friendly high-wear-resistance wind power braking friction plate material |
| CN103131389A (en) * | 2013-03-19 | 2013-06-05 | 长春工业大学 | Environment-friendly high-wear-resistance wind power braking friction plate material |
| CN103671656B (en) * | 2013-12-24 | 2016-09-07 | 刘伟 | Bullet train and rail transit vehicle brake pad |
| CN103671656A (en) * | 2013-12-24 | 2014-03-26 | 刘伟 | High-speed train and rail transit vehicle brake pad |
| CN103697091B (en) * | 2014-01-03 | 2017-01-04 | 大连交通大学 | Embedded brake pad |
| CN103697091A (en) * | 2014-01-03 | 2014-04-02 | 大连交通大学 | Embedded brake pad |
| CN104353836A (en) * | 2014-07-14 | 2015-02-18 | 大连大学 | Preparation method of Fe-20wt%Cu based brake material |
| CN105063459B (en) * | 2015-07-20 | 2017-05-17 | 广西民族大学 | Copper-based powder metallurgy friction material for high-speed train braking and preparation method thereof |
| CN105063459A (en) * | 2015-07-20 | 2015-11-18 | 广西民族大学 | Copper-based powder metallurgy friction material for high-speed train braking and preparation method thereof |
| CN106351993A (en) * | 2016-08-29 | 2017-01-25 | 贵州新安航空机械有限责任公司 | Powder metallurgy brake lining for high speed train and preparing method thereof |
| CN106907413A (en) * | 2017-02-20 | 2017-06-30 | 湖南博科瑞新材料有限责任公司 | A kind of low antiwear magnetic wipes composite and preparation method thereof, magnetic suspension train brake shoes and magnetic suspension train brake block |
| US11534829B2 (en) | 2017-04-07 | 2022-12-27 | Nippon Steel Corporation | Sintered friction material |
| TWI680188B (en) * | 2017-04-10 | 2019-12-21 | 日商日本製鐵股份有限公司 | Sintered friction material |
| CN107956821A (en) * | 2017-11-30 | 2018-04-24 | 万向钱潮（上海）汽车系统有限公司 | A kind of steel back structure of low eccentric wear |
| CN108425975A (en) * | 2018-03-30 | 2018-08-21 | 中铁隆昌铁路器材有限公司 | A kind of middle low speed EMU powder metallurgy brake pad and its installation method |
| CN108425975B (en) * | 2018-03-30 | 2024-05-31 | 中铁隆昌铁路器材有限公司 | Powder metallurgy brake pad for medium-low speed motor train unit and installation method thereof |
| CN110375023A (en) * | 2019-07-05 | 2019-10-25 | 武汉理工大学 | A kind of environmental-friendly, micronic dust low noise novel high-speed rail brake block and preparation method thereof |
| CN111779781A (en) * | 2020-07-08 | 2020-10-16 | 北京浦然轨道交通科技股份有限公司 | Brake pad and manufacturing method thereof |
| CN111961912B (en) * | 2020-08-26 | 2022-01-25 | 中南大学 | Copper-based powder metallurgy friction material for high-energy braking |
| CN111961912A (en) * | 2020-08-26 | 2020-11-20 | 中南大学 | Copper-based powder metallurgy friction material for high-energy braking |
| CN112413023A (en) * | 2020-11-20 | 2021-02-26 | 贵州新安航空机械有限责任公司 | Processing method of sheet powder metallurgy brake disc |
| CN112555310A (en) * | 2020-12-09 | 2021-03-26 | 安阳工学院 | Powder metallurgy copper-based friction block and preparation method thereof |
| CN112555310B (en) * | 2020-12-09 | 2022-08-16 | 安阳工学院 | Powder metallurgy copper-based friction block and preparation method thereof |
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| CN101493127B (en) | 2012-12-12 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20161031 |