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在化工厂醋酸车间乙醛装置改造中,我厂承担了5台钛材设备的制造任务,其主体材料均采用工业纯钛,牌号为TA2.该设备材料特殊,结构复杂,质量要求高,要求对接焊缝采用100%X射线探伤,符合JB4730—94Ⅱ级规定.1 工业纯钛(TA2)容器的焊接技术要点1.1 焊接方法与材料选用手工钨极氩弧焊,敞开式焊接,辅之以必要的氩气保护工装,将焊接高温区与空气隔开.氩气纯度≥99.99%,最高露点为-50℃.选用ERTAl焊丝.
Acetaldehyde plant in the chemical plant acetal plant transformation, I plant assumed 5 sets of titanium equipment manufacturing tasks, the main materials are used in industrial titanium, grade TA2. The equipment is special materials, complex structure, high quality requirements, requirements Butt weld with 100% X-ray inspection, in line with the provisions of JB4730-94 level .1 industrial titanium (TA2) container welding technology points 1.1 welding method and material selection of manual TIG welding, open welding, supplemented by the necessary Argon protection tooling, the welding temperature zone and the air separated. Argon purity ≥ 99.99%, the highest dew point of -50 ° C. Use ERTAl wire.