常用技术要求beforethefeedingcontrolandthewindmeetsthetubewelding,tothegoodcenter,intheholeguaranteedthat¢,内孔保证¢204管道能穿过。weldingusesthemanualarcwelding,,焊条牌号J420G。painting,mustcarryonthesuperficialstainremoval,theeliminationweldingresidualandsoon,itsqualityscaleseesJB/;Prime,inHuangHethebluecolor(accordingtocolormodel),,、清除焊接残渣等,其质量等级见JB/;涂底漆一层、中黄和中蓝色(按颜色样板)聚氨酯面漆二层。除各盖板涂中黄漆外,其余均涂蓝色。漆中不允许含铅。不允许有漏漆、皱漆等缺陷。sealantsandsoonlaplikeseallaxavailableCH107,JLC-,JLC-1等密封胶涂在缝隙大处。terminalplate'。overallwidthtreatsbuysshakeshand,。Shouldbefreefromburrs&;:Temp1250°F,beltspeed-2min00sec/fttravelnitrogen--1076°:温度1250°F,以2分钟/英尺的速度通过250立方英尺/小时注氮的热处理箱炉,或在1022-1076°F的箱炉中加热5分钟;。:OnePlace------------------+-------------------+-----------------------+-(除非有特殊要求):一处-----------------------+-----------------------+-----------------------+-,grit,、砂砾、污垢、。generalmotors也有通用汽车的意思。:-----------
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