贵州化工
貴州化工
귀주화공
GUIZHOU CHEMICAL INDUSTRY
2012年
4期
59-61
,共3页
支管座焊缝%开裂处理%原因分析%防范措施
支管座銲縫%開裂處理%原因分析%防範措施
지관좌한봉%개렬처리%원인분석%방범조시
branch tube socket weld%crack processing%cause analysis%preventive measures
介绍美荷型480kt/a尿素装置高压系统,高压管道支管座与接管（≤DN50）焊缝在熔合线上的开裂原因及在线处理情况,并对开裂原因进行分析,得出损坏的主要原因由应力腐蚀引起,针对腐蚀原因提出防范和整改措施。
介紹美荷型480kt/a尿素裝置高壓繫統,高壓管道支管座與接管（≤DN50）銲縫在鎔閤線上的開裂原因及在線處理情況,併對開裂原因進行分析,得齣損壞的主要原因由應力腐蝕引起,針對腐蝕原因提齣防範和整改措施。
개소미하형480kt/a뇨소장치고압계통,고압관도지관좌여접관（≤DN50）한봉재용합선상적개렬원인급재선처리정황,병대개렬원인진행분석,득출손배적주요원인유응력부식인기,침대부식원인제출방범화정개조시。
The cracking cause and online processing of branch tube socket on the high pressure pipe and connecting tube in the weld fusion line in the USA and Netherlands type 480kt/a urea plant are introduced and analyzed, got the main damage reason that was stress corrosion, and took precautionary measures and corrective measures.
