CN100567760C - Powder metallurgy iron-based high-speed brake pad - Google Patents
Powder metallurgy iron-based high-speed brake pad Download PDFInfo
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- CN100567760C CN100567760C CNB2006100512467A CN200610051246A CN100567760C CN 100567760 C CN100567760 C CN 100567760C CN B2006100512467 A CNB2006100512467 A CN B2006100512467A CN 200610051246 A CN200610051246 A CN 200610051246A CN 100567760 C CN100567760 C CN 100567760C
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- brake pad
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- powder metallurgy
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Abstract
The present invention relates to a kind of powder metallurgy iron-based high-speed brake pad, connect formation by watt back of the body (1), a dovetails (2), brake pad (3) and bound edge vessel (4) by rivet seat (5) and rivet (6), brake pad (3) adopts vessel edge structure and powder metallurgy iron-based friction material, through cold pressing, pressure sintering forms.Features such as the present invention has reliable in structure, and braking friction properties is stable, and surface temperature rise is low, and dispersion is little, and wear resistance is good.Applicable to speed per hour at 300km/h and following railway motor-car or trailer thereof.
Description
Technical field
The present invention relates to a kind of running mechanism of train device, particularly relate to a kind of powder metallurgy iron-based high-speed brake pad.
Background technique
The high speed brake lining is the auxiliary products of high-speed train braking system, it in the train braking process by with wheel shaft on the brake disc friction, absorb the quality that kinetic energy consumes self and produce braking action, be the main structure stressed member of high-speed train bogie or braking device.Can adopt iron-based, copper base, aluminium base etc. powder metallurgy high speed brake lining as required, the friction portion of powder metallurgy high speed brake lining can be divided into whole open flume type powder metallurgy brake block (the brake block side does not have the bound edge vessel) and is arranged in a combination by fritter polygonal or cylindrical powder metallurgy braking column (there are the bound edge vessel brake block side).
Whole open flume type powder metallurgy high speed brake lining is that the direct pressure sintering of powder metallurgy brake block with cold moudling is on a side of the tabular watt of back of the body of the polygonal of integral body, on brake block, have several chip removals and anti-thermal distortion groove, in the train braking process, because brake disc and high speed brake lining brake block frictional surface temperature height, produce microscopic crack, and progressively expansion forms crackle, thereby periphery takes place fall piece, cracking, cause brake torque to descend, brake steady inadequately, friction factor reduces, and stopping distance prolongs.At the braking energy height, when speed is high, above-mentioned condition is very obvious.
The high speed brake lining that fritter polygonal or cylindrical powder metallurgy braking column are arranged in a combination, be earlier with powder metallurgy braking column press forming in advance, wrap polygonal or columniform thin plate or guipure afterwards in its side, pressure sintering is on side of the tabular watt of back of the body of polygonal, or earlier the braking column of pre-compaction forming is shaped by pressure sintering, wrap polygonal or columniform thin plate or guipure then in the side of braking column, be connected again afterwards on side of the tabular watt of back of the body of polygonal.This kind brake block will be because the restriction of watt antiform shape area will significantly reduce the powder metallurgy friction area, cause with the more whole open flume type of kinetic energy that absorbs on the powder metallurgy brake block unit area under uniform velocity and the retardation pressure and want high, can cause brake disc and high speed brake lining brake block frictional surface temperature too high, increase the wearing and tearing of brake disc and brake block, reduce the thermal stability of braking material, reduce the working life of brake disc and high speed brake lining.
Summary of the invention
1, the technical problem that will solve
Require for satisfying the specific service behaviour of high speed brake lining: can effectively brake speed per hour at 300km/h and following bullet train thereof, can under about 600 degrees centigrade high-temperature, work, less friction factor dispersion is arranged, higher wear resistance and little to the wearing and tearing of brake disc is arranged, good heat conductivity is arranged, stable braking ability is arranged in the time of can or having deep-fried twisted dough sticks spare to exist at sleety weather, the metal fillings unharmful substance that drag friction produces, free from environmental pollution, the energy consumption the when design that need not change rubbing device can reduce work etc.For effectively addressing the above problem, the present invention develops powder metallurgy iron-based high-speed brake pad.
2, technological scheme
The technical solution adopted for the present invention to solve the technical problems is: powder metallurgy high speed brake lining is made of a watt back of the body 1, dovetails 2, brake pad 3, bound edge vessel 4 and rivet seat 5; Watt back of the body 1 has several T type through holes, and both sides have several to be used to locate the closed pore of bound edge vessel 4 and the welding hole of welding dovetails 2 respectively; Brake pad 3 adopts the ferrous based powder metallurgical abrasives, powdered metallurgical materials such as iron powder, copper powder are mixed in proportion, pressure sintering is embedded in the bound edge vessel 4 after colding pressing, the boss 7 of several through holes and location usefulness is arranged at bound edge vessel 4 bottoms, by rivet seat 5, rivet 6 and boss 7 bound edge vessel 4 are fastened on a watt side of the back of the body 1, the low carbon steel that bound edge vessel 4 adopt below No. 20 or No. 20; Dovetails 2 is an intermediate projections, and two ends are crooked gradually recessed, the terminal tabular W structure of bend relief again, and dovetails 2 has several through holes with watt back of the body 1 contact position, and the through hole by dovetails 2 is welded on watt corresponding welding hole of the back of the body 1 an opposite side place.The Dimensions of watt back of the body 1, dovetails 2, brake pad 3, bound edge vessel 4 is definite by the composite factors such as distance of size, brake plate support and the brake disc of the size of the brake plate support in the locomotive braking system, brake disc.Brake pad 3 is made by following weight proportioning raw material:
Prescription 1:
Copper powder 9～13 graphite 6～12 glass puttys 1～3 ferro-boron 1～3 molybdenum disulfide 2～5
Ferromanganese 1～3 aluminium sesquioxide 1～5 silicon carbide 9～14 silica 2～6 iron powder surpluses
Prescription 2:
Copper powder 12～15 graphite 6～12 glass puttys 1～3 lead powder 1～3 ferro-boron 1～3 molybdenum disulfide 1～3
Molybdenum powder 2～4 aluminium sesquioxides 2～5 silicon carbide 6～10 nickel powders 1～3 iron powder surplus
3, beneficial effect
Powder metallurgy iron-based high-speed brake pad of the present invention is not yielding, caused owing to temperature is too high when having solved brake piece, cracking, wearing and tearing greatly, problem on deformation, improved retardation efficiency.The high-speed railway motor-car or the trailer that can be used for 300km/h and following speed thereof, can effectively solve because of micro-crack extension produce piece, cracking problem and because of speed too high, the brake pad unit area absorbs the problem of the excessive life-span reduction that causes of kinetic energy, thereby improve the usability and the life-span of brake disc and high speed brake lining, can steadily and effectively brake high-speed railway motor-car or trailer.
Description of drawings
Fig. 1 is a powder metallurgy iron-based high-speed brake pad plan view of the present invention.
Fig. 2 is the A-A sectional view of powder metallurgy iron-based high-speed brake pad among Fig. 1.
Fig. 3 is a powder metallurgy iron-based high-speed brake pad left view among Fig. 1.
Fig. 4 is the bound edge vessel figure of powder metallurgy iron-based high-speed brake pad among Fig. 1.
Embodiment
The present invention is is mainly connected and composed by a watt back of the body 1, dovetails 2, brake pad 3, bound edge vessel 4 and rivet seat 5.Watt back of the body 1 has several T type through holes, several closed pores and welding hole; Brake pad 3 is that powdered metallurgical materials such as iron powder, copper powder are mixed in proportion, and through colding pressing, back pressure sintering is embedded in the bound edge vessel 4; The boss 7 of several through holes and plurality of outward is arranged at bound edge vessel 4 bottoms, by rivet seat 5, rivet 6 and boss 7 bound edge vessel 4 is connected a watt side of the back of the body 1; Dovetails is an intermediate projections, and two ends are crooked gradually recessed, and the terminal tabular W type structure of bend relief again has 6 through holes at recessed position, by the welding hole on the through hole and watt back of the body 1 dovetails 2 is welded on watt opposite side of the back of the body 1.Brake pad 3 is made by one of following two kinds of raw material weight mix proportion schemes:
Prescription 1:
Copper powder 9～13 graphite 6～12 glass puttys 1～3 ferro-boron 1～3 molybdenum disulfide 2～5
Ferromanganese 1～3 aluminium sesquioxide 1～5 silicon carbide 9～14 silica 2～6 iron powder surpluses
Prescription 2:
Copper powder 12～15 graphite 6～12 glass puttys 1～3 lead powder 1～3 ferro-boron 1～3 molybdenum disulfide 1～3
Molybdenum powder 2～4 aluminium sesquioxides 2～5 silicon carbide 6～10 nickel powders 1～3 iron powder surplus
Concrete steps:
1. by above-mentioned prescription 1 or fill a prescription and 2 various powdered metallurgical materials are mixed in proportion, form brake pad 3 through mold pressing;
2. the punching press mild-steel sheet forms bound edge vessel 4, and the boss 7 of formation should be corresponding with watt position of back of the body closed pore;
3. the brake pad 3 of die forming is put in the bound edge vessel 4, sintered combination is bored rivet hole together then on this assembly parts in the pressure sintering stove, and this rivet hole should be corresponding with the T type hole site of watt back;
4. the punching press steel plate forms a watt back of the body 1, utilizes frock to bore T type through hole, location closed pore and welding hole;
5. machine adds rivet seat 5;
6. the punching press steel plate forms dovetails 2;
7. with the 3. corresponding side that is connected T type through hole aperture on watt back of the body 1 of assembly parts that forms of the brake pad 3 of gained and bound edge vessel 4 of step, afterwards by rivet seat 5 and rivet;
8. dovetails 2 is welded on watt welding hole of the back of the body 1 opposite side, forms finished product.
Claims (3)
1, a kind of powder metallurgy iron-based high-speed brake pad, constitute by watt back of the body (1), a dovetails (2), brake pad (3), bound edge vessel (4) and rivet seat (5), it is characterized in that: a watt back of the body (1) has several T type through holes, location closed pore and welding hole, and dovetails is welded on the side that watt back of the body (1) has welding hole by the through hole of concave part; Brake pad (3) is embedded in the bound edge vessel (4) by pressure sintering, bound edge vessel (4) bottom has several and a watt back of the body (1) to go up the corresponding through hole of T type through hole and several go up the corresponding boss (7) of location closed pore with a watt back of the body (1), by rivet seat (5), rivet (6) and boss (7) bound edge vessel (4) is connected watt opposite side of the back of the body (1).
2, powder metallurgy iron-based high-speed brake pad according to claim 1 is characterized in that: brake pad (3) is made by following weight proportioning raw material:
Prescription 1:
Copper powder 9～13 graphite 6～12 glass puttys 1～3 ferro-boron 1～3 molybdenum disulfide 2～5
Ferromanganese 1～3 aluminium sesquioxide 1～5 silicon carbide 9～14 silica 2～6 iron powder surpluses;
Or
Prescription 2:
Copper powder 12～15 graphite 6～12 glass puttys 1～3 lead powder 1～3 ferro-boron 1～3 molybdenum disulfide 1～3
Molybdenum powder 2～4 aluminium sesquioxides 2～5 silicon carbide 6～10 nickel powders 1～3 iron powder surplus.
3, powder metallurgy iron-based high-speed brake pad according to claim 1 is characterized in that: the material of bound edge vessel (4) adopts the low carbon steel below No. 20 or No. 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100512467A CN100567760C (en) | 2006-10-13 | 2006-10-13 | Powder metallurgy iron-based high-speed brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100512467A CN100567760C (en) | 2006-10-13 | 2006-10-13 | Powder metallurgy iron-based high-speed brake pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162032A CN101162032A (en) | 2008-04-16 |
| CN100567760C true CN100567760C (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100512467A Expired - Fee Related CN100567760C (en) | 2006-10-13 | 2006-10-13 | Powder metallurgy iron-based high-speed brake pad |
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Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107665B (en) * | 2009-12-24 | 2012-11-07 | 贵州新安航空机械有限责任公司 | Elastic structure high-speed 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 |
| CN102632233B (en) * | 2012-04-24 | 2014-06-25 | 三门台基摩擦材料有限公司 | High-performance ceramic friction sheet and production process thereof |
| CN104384501B (en) * | 2014-10-30 | 2016-06-08 | 郑州航空工业管理学院 | A kind of iron-based powder metallurgy friction material and preparation method thereof |
| CN104384503B (en) * | 2014-10-30 | 2016-11-30 | 李烈熊 | A kind of ferrum copper-base powder metallurgy antifriction material and preparation method thereof |
| CN104399970B (en) * | 2014-11-26 | 2016-08-24 | 西安航空制动科技有限公司 | A kind of iron-based powder metallurgy friction material and preparation method thereof |
| CN104550908A (en) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Cracking-resistant iron-base powder metallurgy material used for valve and preparation method of cracking-resistant iron-base powder metallurgy material |
| CN105983697B (en) * | 2015-02-10 | 2019-08-02 | 苏州东南佳新材料股份有限公司 | A kind of preparation method of use for electric locomotive powder metallurgy brake block |
| CN105983687B (en) * | 2015-02-10 | 2019-03-05 | 苏州东南佳新材料股份有限公司 | A kind of material being used to prepare use for electric locomotive powder metallurgy brake block |
| CN105987103B (en) * | 2015-02-10 | 2019-04-26 | 苏州东南佳新材料股份有限公司 | A kind of use for electric locomotive powder metallurgy brake block |
| CN105154750A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Impact-resistant metal composite material for vehicle and preparation method thereof |
| CN105506346B (en) * | 2015-12-16 | 2020-08-25 | 常州中车铁马科技实业有限公司 | Powder metallurgy brake pad friction material and preparation method thereof |
| BR112018010068A2 (en) * | 2015-12-25 | 2018-11-13 | Nippon Steel & Sumitomo Metal Corporation | The brake lining for rail cars, and the disk brake for rail cars using it |
| CN106238722B (en) * | 2016-08-04 | 2018-05-11 | 北京天宜上佳新材料股份有限公司 | A kind of brake pad with great friction coefficient 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 |
| CN106438752A (en) * | 2016-10-20 | 2017-02-22 | 无锡市神力齿轮冷挤有限公司 | Rubber friction type one-way clutch |
| CN110605387A (en) * | 2019-08-02 | 2019-12-24 | 贵州新安航空机械有限责任公司 | Sintering method of integral sintered powder metallurgy brake pad |
| CN110695364B (en) * | 2019-11-15 | 2022-04-08 | 博深股份有限公司 | Motor train unit brake pad material and method for manufacturing same |
| CN112059189B (en) * | 2020-08-24 | 2022-05-03 | 北京科技大学 | Powder metallurgy brake pad with stable friction coefficient in wide temperature range and preparation method |
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2006
- 2006-10-13 CN CNB2006100512467A patent/CN100567760C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101162032A (en) | 2008-04-16 |
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