Steel-member manufacturing facility, thin bearing-member and...

Details Steel-member manufacturing facility, thin bearing-member and... Steel-member manufacturing facility, thin bearing-member and...

2006-04-04

2010-02-23

Kastler, Scott (Department: 1793)

Metallurgical apparatus

With recording, indicating, inspection or measuring means

C266S142000, C266S260000

Reexamination Certificate

active

07666346

ABSTRACT:
A steel-member manufacturing facility that can suppress distortion occurring in a quenching process while preventing increase in manufacturing cost includes: a die-cutting apparatus to form a washer; a high-frequency induction heating apparatus for quenching purpose as well as a mold-constraining cooling apparatus that heat the washer as formed and thereafter cool the washer so as to quench-harden the washer; and a high-frequency induction heating apparatus for tempering purpose that heats the quench-hardened washer so as to temper the washer. The high-frequency induction heating apparatus for quenching purpose can heat the washer by induction heating to the temperature of at least Ac1point. The mold-constraining cooling apparatus uses a mold to constrain the heated washer while using the mold as a cooling member, thereby cooling the washer to the temperature of at most Mspoint.

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