Designation
| Name |
The value |
| Designation GOST Cyrillic |
ФМК-79 |
| Designation GOST Latin |
FMK-79 |
| Transliteration |
FMK-79 |
| By chemical elements |
PCuCo-79 |
Description
Powder material FMK-79 used: for the manufacture of parts designed to work in brakes, friction clutches and other friction devices.
Note
Sintered powder material based on iron.
Parts is produced by powder metallurgy, by primechanie to steel base (frame) metal-ceramic friction material.
Standards
| Name |
Code |
Standards |
| Hard alloys, ceramic-metal products and metal powder |
В56 |
OST 1 90115-74 |
Chemical composition
| Standard |
C |
S |
Si |
Fe |
Cu |
B |
| OST 1 90115-74 |
5-7 |
0.5-1.1 |
3.4-5 |
Rest |
9-11 |
0.85-1.8 |
Fe is the basis.
Technological properties
| Name |
The value |
| Particularities of production of goods |
Frames parts with metal-ceramic friction material brand FMK-79 shall be made of steel groups 1 and 2 according to GOST 1616523; brand 20KH3MVF (ЭИ415) - according to GOST 20072, grade 30Х2ГСНВМА (ВЛ1-D) - on the other 14-1-711-73. |
| Properties of the cermet |
The coefficient of friction of 0.30-0,040; the stability of the coefficient of friction is not less than 0.70; the wear Intensity of metal - not exceeding 12.0 ág/brake; the Intensity of wear of cast iron - not more than 9,0 MK/brake; Rockwell Hardness (ball diameter 1,588 mm at a load of 60 kg) of metal to the machining - 80-105. Properties when working together with metal stamps FMK-845: Coefficient of friction - 0,300-400; the stability of the coefficient of friction of not less than 0,65; the wear Intensity of metal - not more than 16.0 µg/brake; wear of FMK-845 - not exceeding 12.0 ág/brake; Rockwell Hardness (ball diameter 1,588 mm at a load of 60 kg) of metal to the machining - 65-100. |
