METHOD FOR MANUFACTURE OF INGOTS BY VACUUM MOLDING Russian patent published in 1999 - IPC

Abstract RU 2133168 C1

FIELD: production of ingots. SUBSTANCE: method involves manufacturing mold by using lining and hermetically sealing films; vacuumizing mold and pouring metal into it. Microcracks formed in crystalline phase generate electric charges in metal. While ingot is formed, electric charges are removed by earthing metal mass and supplying voltage of 0.1-0.5 V. EFFECT: improved quality of ingots by controlled formation of intercrystalline phase in ingots. 2 cl, 1 dwg, 1 tbl, 3 ex

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RU 2 133 168 C1

Authors

Polishko G.Ju.

Karjakin D.S.

Denisov M.I.

Bukov B.A.

Tsepenok V.I.

Dates

1999-07-20—Published

1995-11-30—Filed