Wälz-Gleitelement, Herstellungsverfahren dafür und Wälzlager

Details

Veröffentlichungs-Nr.

EP2514844

Aktenzeichen

EP12164687

Anmeldetag

19. April 2012

Veröffentlichung

23. September 2015

Erteilung

23. September 2015

Rechtsraum

EP

IPC

C21D1/06C21D9/36C22C38/02C22C38/04C22C38/40C22C38/44C23C8/22C23C8/80F16C33/14F16C33/62F16C33/64C21D9/40C21D1/25

Abstract

A steel material that contains appropriate amounts of carbon, silicon, manganese, and chromium as added elements, and that contains appropriate amounts of nickel and molybdenum as incidental impurities is subjected to pre-stage machining, carburizing, process annealing , tempering, and finishing. Thus, a rolling sliding member (2a, 2b, 3a, 4) is obtained in which a carbon content in a surface layer of a rolling sliding surface, a Vickers hardness, an amount of retained austenite, and an area ratio of carbide at portions near the surface layer, and a Vickers hardness and a martensitic transformation ratio at a sectional center portion of the rolling sliding member (2a, 2b, 3a, 4) are appropriately ensured.

Anmelder

Firmen

JTEKT Corporation
JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete