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요약정보
空分高压氧温度计套管断裂原因分析 / Analysis on fracture of hyperbaric oxygen thermowells of air separation unit
Resource Type
Academic Journal
Authors
武建朝
;
王龙权
;
左世飞
;
贾武军
;
王波
;
Wu Jianchao
;
Wang Longquan
;
Zuo Shifei
;
Jia Wujun
;
Wang Bo
Source
机械制造文摘(焊接分册) / JIXIE ZHIZAO WENZHAI(HANJIE FENCE)
. (2):44-48
Subject
温度计套管
断裂
焊接
共振
Language
Chinese
Online Access
Find it @ DONGA
초록
针对空分装置?24 mm的06Cr17Ni12Mo2双金属温度计套管在吹扫时发生的焊缝根部断裂现象进行了试验,重点分析了根部焊缝的化学成分、显微组织、力学性能、断口形貌、共振模拟试验等方面的内容.结果表明,断裂原因与焊接没有太大关系;主要原因是在吹扫时,由于3支温度计套管排列在同一条直线上,在吹扫流速不断变化过程中温度计套管产生横向共振和纵向共振,从而诱发温度计套管发生扭转疲劳脆断.后期通过增加温度计套管的直径、严格控制吹扫流速来控制共振的发生,从而消除了断裂现象.
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