Home
Editorial Committee
Brief Instruction
Back Issues
Instruction to Authors
Submission on line
Contact Us
Chinese

  The journal resolutely  resists all academic misconduct, once found, the paper will be withdrawn immediately.

Title:Research on the process of high pressure cylinder sleeve 9Cr18
Authors: Gao Quande  Meng Xiangshun  Ye Yujuan  Wang Dengke  Li Haibin  Shi Jianma 
Unit: Zhong Yuan Special Steel Co. Ltd. 
KeyWords: 9Cr18  high pressure cylinder sleeve  crack  twin carbide 
ClassificationCode:TG335.55
year,vol(issue):pagenumber:2015,40(11):23-26
Abstract:
High pressure cylinder sleeve requires corrosion resistance and can withstand high pressure. Under the extreme terrible working condition,stainless steel 9Cr18 of high carbon and high chromium can meet the demand of high pressure cylinder sleeve. However, its thermal processing performance is poor, and it is easy to crack during or after forging. In addition, it usually has twin carbide in the annealing microstructure that affects corrosion resistance and the service life of high pressure cylinder sleeve. Heating before forging was realized to reduce the formation of delta ferrite and improve the forging plasticity by a slowly heating at low heating stage and a rapid heating at high heating stage. The forging process was conducted by upsetting and small scattered deformation, and stretching was realized on the upper flat and lower V anvils to break cast structure and coarse carbide. By adopting the after forged heat treatment process of spheroidizing annealing and accurately controlling the cooling speed, the twin carbide existing in the annealing microstructure was eliminated. As a result, the granular pearlite was obtained which met the requirements of high pressure cylinder sleeve.

 

Funds:
AuthorIntro:
高全德(1966-),男,学士,研究员级高级工程师 叶玉娟(1983-),女,硕士,工程师
Reference:


[1]赵昌盛,孙桂良,闵令平,等.不锈钢的应用及热处理[M].北京:机械工业出版社,2010.Zhao C S, Sun G L, Min L P,et al. Application and Heat Treatment of Stainless Steel [M].Beijing: China Machine Press,2010.
[2]崔忠圻.金属学与热处理[M].北京:机械工业出版社,2000.Cui Z Q. Metallography and Heat Treatment [M].Beijing: China Machine Press,2000.
[3]姚泽坤.锻造工艺学与模具设计[M].西安:西北工业大学出版社,1996.Yao Z K. Forging Technology and Die Design[M].Xi'an: Northwestern Polytechnical University Press,1996.
[4]俞汉清,陈金德.金属塑性成形原理[M].北京:机械工业出版社,1998.Yu H Q, Chen J D. Principle of Metal Plastic Forming[M].Beijing: China Machine Press,1998.

Service:
This site has not yet opened Download Service】【Add Favorite
Copyright Forging & Stamping Technology.All rights reserved
 Sponsored by: Beijing Research Institute of Mechanical and Electrical Technology; Society for Technology of Plasticity, CMES
Tel: +86-010-62920652 +86-010-82415085     Fax:+86-010-62920652
Address: No.18 Xueqing Road, Beijing 100083, P. R. China
 E-mail: fst@263.net    dyjsgg@163.com