Title:
STEEL MATERIAL FOR MANUFACTURING BEARING, METHOD FOR PERFORMING HEAT TREATMENT THERETO AND FORMED PART
Document Type and Number:
WIPO Patent Application WO/2017/120987
Kind Code:
A1
Abstract:
A steel material for manufacturing a bearing, comprising by weight 1.22-1.6% of carbon, 0.5-2% of chromium, 4-8% of aluminum, 0.1-1.5% of manganese and less than or equal to 0.7% of silicon, the remainder comprising iron and impurities. The heat treatment first involves a martensite transformation and a bainite transformation, and then cooling to room temperature such that the formed part or bearing after heat treatment contains greater quantities of martensite and of austenite residue.
Inventors:
YI HONGLIANG (CN)
PANG JIACHEN (CN)
PANG JIACHEN (CN)
Application Number:
PCT/CN2016/072301
Publication Date:
July 20, 2017
Filing Date:
January 27, 2016
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
C22C38/06; C21D6/00; C22C38/02; C22C38/04; C22C38/08; C22C38/12; C22C38/14; C22C38/16; C22C38/18; F16C33/30; F16C33/58
Foreign References:
| CN103540726A | 2014-01-29 | |||
| CN103122433A | 2013-05-29 | |||
| CN101586216A | 2009-11-25 | |||
| JP2000204443A | 2000-07-25 | |||
| JPH11293410A | 1999-10-26 |
Attorney, Agent or Firm:
YUHONG INTELLECTUAL PROPERTY LAW FIRM (CN)
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