METHOD FOR MANUFACTURING BILLETS FROM ANTIFRICTION BRONZE BY CASTING WITH FOLLOWING EXTRUSION Russian patent published in 2021 - IPC B21C23/04 B22D21/00 

Abstract RU 2760688 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to the metallurgy of non-ferrous metals, in particular to the production of cast billets from antifriction tin-lead bronzes of the BrO10S2N3 type. The blanks are extruded on a vertical or horizontal hydraulic press by direct pressing at a speed of 1-5 mm/s through a die providing a reduction rate from 2 to 10 using the hot extrusion method. Blanks without preliminary heat treatment are heated up to 500-600°С, and the matrix - up to 450-550°С.

EFFECT: invention makes it possible to obtain billets of antifriction bronze free from looseness and porosity for diffusion welding with steel, while the structural components of the alloy are significantly reduced and the uniformity of distribution of eutectic precipitates and the density of the billet are increased.

5 cl, 3 dwg

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RU 2 760 688 C1

Authors

Koltygin Andrej Vadimovich

Bazhenov Vyacheslav Evgenevich

Sannikov Andrej Vladimirovich

Plisetskaya Inga Viktorovna

Belov Vladimir Dmitrievich

Okulov Aleksandr Borisovich

Yudin Vasilij Anatolevich

Dates

2021-11-29Published

2021-06-10Filed