METHOD FOR CENTRIFUGAL CASTING OF DOUBLE-LAYER ROLLS WITH WORKING LAYER OF HIGH-ALLOY IRON Russian patent published in 2000 - IPC

Abstract RU 2148471 C1

FIELD: foundry, in particular, production of iron rolls. SUBSTANCE: method involves rotating casting mold about vertical axis; pouring metal at flow rate of 1.1-1.3 of volume of working layer; providing holding for allowing working layer to harden; pouring first portion of core metal at flow rate of 0.3-0.6 of volume of working layer; holding for allowing transition part to harden for 0.5-0.8 of total volume of liquid metal of transition part. Upon further pouring, liquid core metal is mixed with unhardened portion of transition part, in which the content of alloying component is lower than that of working layer. Such method allows roll core structure to be improved by presence of eutectical carbides only in allowed amounts. EFFECT: simplified method and improved quality of rolls. 1 ex

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RU 2 148 471 C1

Authors

Budag'Jants Nikolaj Abramovich

Kondratenko Viktor Ivanovich

Djachenko Jurij Vasil'Evich

Zhizhkina Natal'Ja Aleksandrovna

Gol'Dshtejn Leonid Borisovich

Balakleets Igor' Al'Binovich

Sirota Dmitrij Aleksandrovich

Dates

2000-05-10Published

1998-07-30Filed