FIELD: chemistry.
SUBSTANCE: group of inventions relates to friction materials for braking devices. Powder friction material for brake pad contains powders of graphite, iron, alloyed copper, aluminium oxide, iron sulphide, boron carbide, silicon carbide and calcined asbestos. Method of obtaining a brake pad includes cold pressing of a workpiece from a powder friction material with a force of 400–500 MPa, heating of the resulting workpiece to 980–1,050 °C and dynamic pressing thereof with an energy of 850–950 MJ/m3. Brake pad comprises a working layer of a powder friction material and a bearing layer of iron powder.
EFFECT: quality of friction material is improved, which improves the durability and wear resistance of the brake pad, reduces the damage to the wheel surface and its wear and tear.
6 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE ALLOY ON FE-BASE FOR BRAKE PAD OF RAILROAD CAR | 2014 |
|
RU2553138C1 |
| BRAKE PAD | 2013 |
|
RU2568818C2 |
| FRICTION MATERIAL FOR MAKING OF BRAKE, BRAKE SHOE AND METHOD OF ITS FABRICATION | 2012 |
|
RU2570515C2 |
| METHOD OF ROLLING STOCK BRAKE PADS PRODUCTION | 2010 |
|
RU2463185C2 |
| ROMANIT-FUVLHCH FRICTION COMPOSITE MATERIAL AND METHOD OF PRODUCTION THEREOF | 2016 |
|
RU2665651C2 |
| ENHANCEMENT OF WEAR RESISTANCE OF LOCOMOTIVE BRAKE PADS | 2014 |
|
RU2575505C2 |
| 0 |
|
SU376473A1 | |
| VEHICLE CURRENT COLLECTOR TROLLEY | 2004 |
|
RU2273566C2 |
| FRICTION IRON FOR LOCOMOTIVE BRAKE PAD AND METHOD OF ITS FABRICATION | 2014 |
|
RU2573848C1 |
| CAKED FRICTION MATERIAL AND METHOD OF PREPARING BLEND FOR MANUFACTURING THEREOF | 1994 |
|
RU2086693C1 |
