Title:
CONTAINER CRANE WHEEL STEEL, WHEEL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/166155
Kind Code:
A1
Abstract:
Container crane wheel steel, a wheel and a preparation method therefor. By means of designing chemical components of the container crane wheel steel and adding a post-forging preparatory heat treatment between forging forming and rough machining, a container crane wheel that has good robustness and an excellent surface hardening layer is prepared. The wheel tread hardness thereof can be above HRC55, the effective hardening layer depth is greater than or equal to 15mm, and the hardness at a depth of 15mm below the wheel tread is greater than or equal to HRC35, so that the container crane wheel has the advantages of high surface hardness, a deep effective hardening layer and good internal toughness. The service life of the container crane wheel can be increased by more than 50% compared to conventional 45# and 55# carbon steel wheels.
Inventors:
CHEN CHUANGYE (CN)
ZHU GUOHE (CN)
CHEN YANG (CN)
DONG BIN (CN)
ZHU GUOHE (CN)
CHEN YANG (CN)
DONG BIN (CN)
Application Number:
PCT/CN2021/112950
Publication Date:
August 11, 2022
Filing Date:
August 17, 2021
Export Citation:
Assignee:
SHANGHAI ZHENHUA PORT MACHINARY HEAVY IND CO LTD (CN)
International Classes:
C22C38/02; B66C9/08; C21D1/18; C21D1/28; C21D1/60; C21D8/00; C21D9/34; C22C38/04; C22C38/22; C22C38/28
Domestic Patent References:
| WO2020128571A1 | 2020-06-25 |
Foreign References:
| CN102433504A | 2012-05-02 | |||
| CN110656294A | 2020-01-07 | |||
| CN106167881A | 2016-11-30 | |||
| CN112981260A | 2021-06-18 | |||
| CN104120238A | 2014-10-29 | |||
| CN107177796A | 2017-09-19 | |||
| US5759299A | 1998-06-02 |
Attorney, Agent or Firm:
SHANGHAI JIXIN INTELLECTUAL PROPERTY CO., LTD (CN)
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