Surface-treated component manufacturing method and apparatus

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United States of America Patent

PATENT NO 9920405
SERIAL NO

14619378

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Abstract

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A surface-treated component manufacturing method and apparatus capable of detecting an end of a steel bar. Quenching (surface treatment) is locally applied to a plurality of steel bars aligned end-to-end in an axial direction while moving the steel bars in the axial direction. Quenched portions are locally formed on each of the steel bars through a moving step, a detecting step, and a quenching step. In the detecting step, an end portion of one steel bar is displaced relative to an end portion of another steel bar with a pressure roller device, and passage of the end of the one or another steel bar is detected with a detection sensor. In the quenching step, the quenched portions are locally formed on each of the steel bars with a quenching device at a quenching timing determined on the basis of the result of detection by the detection sensor.

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTDHITACHINAKA-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funayama, Yoshihiro Fukushima, JP 10 47
Obata, Ryoju Fukushima, JP 1 0
Yahagi, Tatsuya Fukushima, JP 2 2
Yamada, Masahiro Fukushima, JP 325 2703

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