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Alloy BMK-1

Designation

Name The value
Designation GOST Cyrillic БМК-1
Designation GOST Latin BMK-1
Transliteration BMK-1
The chemical elements BeCuCo-1

Description

Alloy BMK-1 is used: for the manufacture of friction linings, designed to work in the friction nodes and transmission devices working in conditions of dry friction at sliding speed up to 20 m/sec and pressure on friction surfaces to 35 kg/cm2.

Note

Sintered friction material based on copper.

Standards

Name Code Standards
Solid alloys, metal-ceramic products and powders, metal В56 TU 14-1-1291-75

Chemical composition

Standard Si Fe Cu Zn Sn Pb
TU 14-1-1291-75 0.75-1.25 3-5 The rest 6-8 7-9 4-6
Cu is the basis.
In the sintered material of BMK-1 according to TU 14-1-1291-75, in addition to the specified components, graphite in the amount of 0.75-1.25% is contained.

Technological properties

Name The value
Microstructure On the other 14-1-1291-75 the microstructure of the sintered material is a solid solution of tin and zinc in copper with inclusions of graphite, lead, iron, silicon and then uniformly distributed across the section.
Features of production The hardness of the sintered material on the other 14-1-1291-75 should be in the range of 25-75 kg/mm2.

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