防止抽油杆用热轧圆钢表面裂纹的措施  

Countermeasures Against the Crack of Hot-rolled Bar for Oil-Sucker Rods Steel

作　　者：关玉佐[1] 王云阁[1] 刘宝喜[1] 王晓华[1] 张春燕[1] 李维铁[1] 

机构地区：[1]唐山钢铁股份有限公司技术中心,河北唐山063016

出　　处：《金属热处理》2004年第5期66-68,共3页Heat Treatment of Metals

摘　　要：简要介绍了 2 0CrMoA抽油杆用热轧圆钢的生产工艺流程 ,并对存在表面裂纹试样的金相组织及裂纹形态进行观察、研究 ,详细分析了各种裂纹产生的原因 ,并据此提出了防止圆钢出现表面裂纹的措施。The process of hot-rolled bar for oil-sucker rods made of steel 20CrMoA was introduced in brief.The microstructure and the crack of the bar were observed and the cracking causes were discussed in details.Some countermeausures against crack of the bar were put forward.

关 键 词：抽油杆用热轧圆钢 裂纹 折叠 夹杂物 

分 类 号：TG142.41[一般工业技术—材料科学与工程]