压力容器
壓力容器
압력용기
2014年
8期
71-76
,共6页
哈氏合金C4%焊接性能%焊接工艺%微观组织
哈氏閤金C4%銲接性能%銲接工藝%微觀組織
합씨합금C4%한접성능%한접공예%미관조직
hastelloy C4%welding properties%welding process%microstructure
为防止介质腐蚀，残液罐产品底部选用了哈氏合金C4材料，该材料属于Ni-Cr-Mo类型镍基耐蚀合金、单相奥氏体组织，具有镍基耐蚀合金的焊接特性。采用氩弧焊方法，选用ERNiCrMo-7焊丝，通过设计坡口、焊前清理、控制道间温度、选择较小焊接热输入等工艺措施，经焊接工艺评定试验和焊接接头金相组织分析，结果表明所制定的焊接工艺可以保证焊接接头的力学性能和耐蚀性能。
為防止介質腐蝕，殘液罐產品底部選用瞭哈氏閤金C4材料，該材料屬于Ni-Cr-Mo類型鎳基耐蝕閤金、單相奧氏體組織，具有鎳基耐蝕閤金的銲接特性。採用氬弧銲方法，選用ERNiCrMo-7銲絲，通過設計坡口、銲前清理、控製道間溫度、選擇較小銲接熱輸入等工藝措施，經銲接工藝評定試驗和銲接接頭金相組織分析，結果錶明所製定的銲接工藝可以保證銲接接頭的力學性能和耐蝕性能。
위방지개질부식，잔액관산품저부선용료합씨합금C4재료，해재료속우Ni-Cr-Mo류형얼기내식합금、단상오씨체조직，구유얼기내식합금적한접특성。채용아호한방법，선용ERNiCrMo-7한사，통과설계파구、한전청리、공제도간온도、선택교소한접열수입등공예조시，경한접공예평정시험화한접접두금상조직분석，결과표명소제정적한접공예가이보증한접접두적역학성능화내식성능。
To prevent from the corrosion of the medium,hastelloy C4 material belonging nickel -based corrosion resistant alloy of Ni-Cr-Mo type with single-phase austenite was selected and adapt as the bottom of residual liquid tanks.With TIG welding method and ERNiCrMo -7 welding filler,the tech-niques were adapt such as groove design,pre-weld cleaning,temperature control between channels and lower welding heat.welding procedure qualification test has been passed and the metallographic micro-structures analysis of welded joints were conducted.The results show that the welding process can ensure the mechanical properties and corrosion resistance of welded joints.
