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| 抗硫高压分离器UNS N06625堆焊工艺与腐蚀试验 | |
| 引用本文： | 韩冰, 冯伟, 魏涛. 抗硫高压分离器UNS N06625堆焊工艺与腐蚀试验[J]. 焊接, 2017, (5): 47-50. |
| 作者姓名： | 韩 冰冯 伟魏 涛 |
| 摘 要： | 分析了高含H2S，CO2的产出物的特性，确定了井口分离器采用低合金钢堆焊625合金的结构形式，并选择合适的焊接工艺方法，对625合金的焊接性进行分析。经过工艺试验，摸索出合适的焊接工艺参数，进行了单层电渣堆焊、焊条电弧焊堆焊和小管内孔自动氩弧焊堆焊3种焊接方法评定，并进行了晶间腐蚀、氯化镁应力腐蚀和模拟分离器工况条件的抗硫化氢应力腐蚀和动态腐蚀评价试验。试验结果合格，满足技术要求，并据此完成了设备制造。 |
| 关 键 词： | 镍基合金 堆焊 工艺评定 腐蚀试验 |
| 收稿时间： | 2017-03-01 |
Overlaying process and corrosion test of UNS N06625 in anti-sulfur high pressure separator |
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| Han Bing, Feng Wei, Wei Tao. Overlaying process and corrosion test of UNS N06625 in anti-sulfur high pressure separator[J]. WELDING & JOINING, 2017, (5): 47-50. | |
| Authors: | Han Bing Feng Wei Wei Tao |
| Abstract: | The product characteristics of gas field with rich H2S and CO2natural gas were analyzed，the structure of low alloyed steel overlaid by alloy 625 for well separator was determined and the proper welding process was selected．The weldability of alloy 625 was analyzed，and the proper welding process parameters were found out based on the process experience．Three overlaying procedures of one layer electroslag welding，shielded metal arc welding and automatic argon welding inside of small diameter pipe were qualified．Besides，the evaluation tests for intergranular corrosion，magnesium chloride stress corrosion and H2S stress corrosion resistance and dynamic corrosion under simulated working condition were carried out．The results are acceptable and meet the technical requirements．The equipment fabrication was completed． |
| Keywords: | Ni-base alloy overlay welding procedure qualification corrosion test |
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