The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
gai shan zhu tie jian han xiu zhi liang de cuo shi
Author(s): 
Pages: 21
Year: Issue:  4
Journal: Modern Agricultural Machinery

Keyword:  GetLinkList(KeywordFilter('铸铁件:7357焊修:4007切削加工性能:2370冷却速度:2303白口铸铁:2183焊缝金属:1943内应力:1859石墨夹杂:1522可焊性:1513化学成分:1506')'kw''CJFQ');
Abstract: <正> 拖拉机的气缸体、气缸盖、变速箱及后桥壳体等都是铸铁件。铸铁具有耐磨、减据等特性及良好的铸造、切削加工性能。同时,由于片状石墨夹杂于铁素体间,也使铸铁的塑性差,强度低,可焊性差,在焊修时容易出现以下问题。 1.容易产生白口。焊修时由于熔融的铁水冷却速度快,特别是焊缝边界区冷却速度更快,使石墨来不及析出,形成硬而脆的渗碳体(Fe_3C),即产生白口。白口铸铁的性能硬而脆,加工困难。 2.容易产生裂缝。焊修时的局部温
Related Articles
No related articles found