Honda Giken Kogyo Kabushiki Kaisha

Tohoku Special Steel Works Limited

Hitoshi Itami

Jun Takizawa

Tetsuya Kondo

Yoshiaki Takagi

Yoshinobu Saito

Nagatsugu Mukaibo

Tooru Sukigara

Makoto Tabei

Yasuhide Ouchi

A process for prooducing an Fe&mdash;Co based magnetic alloy having not only good magnetic properties but also excellent mechanical characteristics is provided which includes a first step of heating an Fe&mdash;Co based magnetic alloy material having a Co content which is in a range of 30% by weight&lE;Co&lE;65% by weight to convert the metallographic structure thereof into a &ggr; single-phase structure, a second step of gradually cooling the material to an a single-phase range at a cooling rate C,set in a range of 20 K&deg;/hr&lE;C,&lE;0.5 K&deg;/sec, and a third step of subjecting the material to a magnetic softening treatment.

Process for producing Fe-Co based magnetic alloy having excellent mechanical properties

Magnetostructure material, and process for producing the same

A high cold-forging electromagnetic stainless steel comprises not more than 0.02 wt. % of C, not more than 0.50 wt. % of Si, not more than 0.50 wt. % of Mn, 10.0-18.0 wt. % of Cr, 0.30-1.50 wt. % of Mo, 0.05-0.50 wt. % of Ti, 0.30-2.00 wt. % of Al, 0.0005-0.05 wt. % of B, not more than 0.05 wt. % of N and the balance being substantially Fe. This steel may further contain a given amount of at least one of Nb, V, Pb, Ca, Se, S and REM. Such stainless steel is used as a material of parts in an electronically controlled fuel injection system.

High cold-forging electromagnetic stainless steel

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Wako, Japan

Hitoshi Itami