Working life precision casting parts: organizational structure heat caused unreasonable, excessive grain size, leading to major properties such as toughness, precision castings, and thermal fatigue performance, wear resistance and so on down and adversely affect the service life of precision castings.
Precision castings manufacturing costs: As the middle part of the casting of the manufacturing process or the final step of cracking caused by heat treatment, deformation-tolerance and performance of ultra-poor, in most cases will cast scrap, even through the repair can continue to use, too increased working hours, extended delivery time, improve the manufacturing cost of the casting.
Manufacturing precision casting parts: organizational change is uneven, incomplete formation of residual stress and heat caused by excessive casting deformation after heat treatment in the processing, assembly and precision castings used in the process, thereby reducing the precision casting, or even scrapped .
Strength precision castings: heat treatment process is not appropriate, heat treatment operations are not standardized or heat treatment equipment status is not good, cause to be processed casting strength (hardness) less than the design requirements.
It is heat treatment technology and precision castings quality are very closely related, making these two kinds of technology in the process of modernization, mutual promotion and common raise. In recent years, the international precision casting heat treatment technology developed rapidly in the area of vacuum heat treatment, surface hardening technology precision castings and precision casting material pre-hardening technology.
http://www.cnwxyszj.com |
|
Wuxi Yongsheng Metals Goods Co.,Ltd.
Hotline:86-13806173867
Contact: Zhiyong Lu
Contact: Miss Ma
Tel: 0510-68916532
Fax: 0510-68916533
E-mail: lyzz@vip.163.com
caochuantou@163.com
Website:http://www.jxsysd.com
Address: No. 38 Xiqun Road Industrial Park, Jiangsu Wuxi Meicun
|
.gif)
.gif)