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不銹鋼表(biao)面有焊(han)縫(feng),且油污較(jiao)重,采(cai)用1號(hao)工(gong)藝流程:手工(gong)除(chu)(chu)焊(han)瘤(liu)、毛刺、焊(han)渣等→手工(gong)去油(汽油擦洗(xi))→化(hua)(hua)(hua)學除(chu)(chu)油(氫氧化(hua)(hua)(hua)鈉30~65g/L,碳酸鈉20~40g/L,磷酸鈉20~35g/L,OP-10乳化(hua)(hua)(hua)劑(ji)2~3mL/L,60~80℃,除(chu)(chu)盡為止(zhi),一(yi)般為20~30分鐘)→水洗(xi)→化(hua)(hua)(hua)...