压力容器2017，Vol.34Issue(3)：57-64,8.DOI:10.3969/j.issn.1001-4837.2017.03.009
冲拔式调质热处理高压气瓶局部开裂的失效分析
Local Cracking Failure Analysis on High Pressure Cylinders Manufacturing by Piercing and Drawing after Quenching and Tempering Heat Treatment
尹谢平 1黄国根 2柯晓涛3
作者信息
- 1. 浙江金盾压力容器有限公司,浙江 绍兴 312367
- 2. 浙江省特种设备检验研究院,浙江 杭州 310020
- 3. 攀钢集团 攀枝花钢钒有限公司,四川 攀枝花 617067
- 折叠
摘要
Abstract
To research the reason of local cracking failure on high pressure cylinders manufacturing by piercing and drawing after quenching and tempering(Q+T),through the experimental research and analysis on the chemical composition,mechanical property,macro and micro rupture,and metallurgical structure of cracked cylinders after Q+T,and analysis on high pressure cylinders manufacturing process.The results show:using the unqualified tin bronze ring in the rolling ring mould under the drawing process,the turning of tin bronze ring in rolling ring mould caused abrasion or falling off block when the blank passed through the rolling ring mould,the bronze powder or block on the blank with about 1000 ℃ were pressed into the surface of the blank.The bronze powder in the surface of blank was transverse or diagonal because the blank transverse swing when blank passing through the rolling ring mould.For the cylinders with bronze powder or block,the bronze spread from the outside surface to the inside surface under the 870 ℃ heating of Q+T,caused cracks because bronze embrittlement when quick ly quenching cooling by water medium.关键词
高压气瓶/冲拔/调质热处理(Q+T)/开裂/失效分析Key words
high pressure cylinder/piercing and drawing/quenching and tempering(Q+T)/crack/failure analysis分类
机械制造引用本文复制引用
尹谢平,黄国根,柯晓涛..冲拔式调质热处理高压气瓶局部开裂的失效分析[J].压力容器,2017,34(3):57-64,8.
