Corrosion and repairs of ammonium carbamate decomposers

被引：0
|
作者：
DeRomero, MF
Galban, JP
机构：
[1] Pequivan S.A., Zulia, Venezuela
来源：
MATERIALS PERFORMANCE | 1996年 / 35卷 / 05期
关键词：
Ammonium compounds - Carbon steel - Chromium alloys - Corrosion - Electric arc welding - Extraction - Repair - Stainless steel - Urea;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Corrosion-erosion problems occurred in the carbon steel base metal of the ammonium carbamate decomposers in an urea extraction process lined with type 316L (UNS S31603) urea grade stainless steel. The cladding was replaced by weld overlay using a semiautomatic gas metal arc welding process. The first layer was alloy 25%Cr-15%Ni-2%Mo (UNS W30923); the second layer, was alloy 25%Cr-22%Ni-2%Mo (UNS W31020).
引用
收藏
页码：69 / 70
页数：2
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