液压油缸缸筒用钢管调质工艺的改进  

Improvement of Quenching and Tempering Process for Steel Tube for Fabrication of Hydraulic Cylinder Casing

作　　者：韩波 

机构地区：[1]江苏华程工业制管股份有限公司,江苏张家港215611

出　　处：《钢管》2013年第1期77-82,共6页Steel Pipe

摘　　要：介绍了液压油缸缸筒用钢管的技术条件要求,分析了原有调质热处理工艺效果较差的原因,提出了新的调质热处理工艺,即在调质前对钢管采取先期完全消除应力、稳定组织的热处理工艺,防止钢管调质时产生变形;然后再采取调整材料综合力学性能的调质(淬火+回火)热处理工艺,使钢管具有强度(硬度)高、耐磨性好、塑性强、承受压力大、脱碳少、微变形等综合性能优势。采取此新工艺后,所生产钢管满足了液压油缸缸筒的技术条件要求。The technological requirements for the steel tube for fabrication of the hydraulic cylinder casing are presented. And the causes for the poor effectiveness of the previously-employed quenching ＆ tempering treatment process for the said tube are analyzed. Based on the analysis result, a new quenching ＆ tempering process is put forward. Following the new process, the tube is first heat treated to be fully pre-stress relieved, and have stable structure so as to prevent any deformation, when it is undergoing the quenching ＆ tempering treatment. Then the tube is subjected to the quenching ＆ tempering treatment to get the material＇ s comprehensive mechanical properties properly adjusted. As a result, the tube is generally in possession of such advantages as high strength （hardness）, good wearesistance, high plasticity, high pressure-resistance, low decarbonization rate, and slight deformation, etc. Owing to the said new heat treatment process, the tubes as made are in compliance with the technological requirements for the hydraulic cylinder casing.

关 键 词：钢管 液压油缸 缸筒 调质处理 金相组织 脱碳 微变形 

分 类 号：TG156.6[金属学及工艺—热处理]