| 针阀体开裂原因实验分析 |
| |
| 引用本文： | 陈亚军.针阀体开裂原因实验分析[J].实验室研究与探索,2004,23(12):37-39. |
| |
| 作者姓名： | 陈亚军 |
| |
| 作者单位： | 无锡威孚高科技股份有限公司,江苏,无锡,214031 |
| |
| 摘 要： | 对针阀体使用中发生球头部位开裂的原因进行了硬度测定及金相检验等。结果表明,由于渗碳过程中,球头部位的尖角效应,使得该处碳势过高,导致球头部位出现网状碳化物,碳化物网状分布破坏了基体的连续性,从而降低了球头部位的疲劳强度,在交变高压油的作用下萌生微裂纹,并不断扩展导致球头出现开裂。
|
| 关 键 词： | 针阀体 尖角效应 网状碳化物 疲劳强度 |
| 文章编号： | 1006-7167(2004)12-0037-03 |
| 修稿时间： | 2004年5月8日 |
Experimental Analysis of an Oil Spout Cracking |
| |
| CHEN Ya-jun.Experimental Analysis of an Oil Spout Cracking[J].Laboratory Research and Exploration,2004,23(12):37-39. |
| |
| Authors: | CHEN Ya-jun |
| |
| Abstract: | Hardness testing and metallographic examination have been applied in checking the reason of cupola of the oil spout fracture in this paper.The results show that sharp-angled effect of the cupola where carbon potential is higher in carburizing treatment which reslted in formation of netlike carbides,and it broke the connection of the body and fatigue strength of the cupola was lower.Under the function of the high and alternating oil pressure crevice crack was easily formed in cupola of the oil spout and expanded in use which caused fracture. |
| |
| Keywords: | oil spout sharp-angled effect netlike carbides fatigue strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
