The Japan Steel Works, Ltd.

Honda Motor Co., Ltd.

Hitohisa Yamada

Shinji Tanaka

Tadayoshi Tsukeda

Yasuhiro Aoki

Mamoru Mizusawa

Yuuichi Ienaga

Masahiko Muro

An object of the invention is to make it possible to produce a copper alloy in which the S content is reduced with no contamination with Al, which has a good casting surface and good internal properties and in which eutectic compounds are refined. The invention relates to a slag for electroslag remelting for copper alloy, including CaF: 20 to 45% by mass, CaO: 10 to 30% by mass, SiO: 10 to 30% by mass, LiF: 10 to 20% by mass, and ZrO: 5 to 15% by mass with other impurities: at most 1% by mass, and satisfying a formula:17.0(LiF content+ZrOcontent)&#x2212;556&#x2266;CaFcontent&#x2266;4.1(LiF content+ZrOcontent)&#x2212;80.9,and the invention relates to a method for producing a copper alloy with the slag.

Slag for electroslag remelting for copper alloy and method for producing copper alloy material

The present invention relates to a casting mold having a molten metal received therein which is rotated in one direction by a rotary device with the vertical axis as a rotary axis while solidifying the molten metal for a predetermined period of time, and, after the predetermined period of time is lapsed, the casting mold is rotated in the direction opposite the direction of rotation for a predetermined period of time, and the rotation in the opposing directions is repeated so that the molten metal is solidified. The molten metal can be shaken and agitated without roughening the surface of the molten metal to uniformalize the distribution of temperature of the molten metal in the casting mold.

Casting method and casting apparatus

Growing community of inventors

Hokkaido, Japan

Hitohisa Yamada