B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/167
B22D 27/02 (2006.01) B22D 11/11 (2006.01)
Patent
CA 1196172
ABSTRACT A leaded free-cutting steel is manufactured by con- tinuous casting process without causing any-pollution of the environment or a manufacturing apparatus by toxic gases or fumes and in a high yield of lead addition with a high quality, wherein lead or lead alloy or composite lead-feeding material comprising lead or lead alloy covered with a metallic material harmless for the steel such as, for example, alminum or iron, are directly added to molten steel being electromagnetically stirred in the horizontal direction in a mold. In the manufacturing method, a leaded free-cutting steel having a uniform lead distribution or a high machin- ability leaded free-cutting steel can be readily produced by controlling electromagnetic stirring force applied to the molten steel in the mold.
398431
Mitsubishi Steel Mfg. Co. Ltd.
Riches Mckenzie & Herbert Llp
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