設備內壁噴塗表麵應平齊,焊縫表麵應平整,不得有焊渣,焊瘤和毛刺,法蘭接收內緣等轉角處必需修磨成圓角半徑不小於5mm的油滑過渡。內件修磨成圓角半徑不小於2mm的油滑過渡(碳鋼局部)。
設備噴鋁表麵需按下列過程和請求停止表麵處置:淨化處置:噴鋁表麵需經嚴厲地根除油脂和塵垢。粗化處置:淨化處置後的表麵需停止噴砂處置,噴砂後表麵清潔度應契合GB8923-88中Sa3級ji規gui則ze,不bu允yun許xu存cun在zai氧yang化hua皮pi,鏽xiu塵chen垢gou和he舊jiu塗tu層ceng等deng附fu著zhe物wu。表biao麵mian處chu置zhi合he格ge後hou,等deng候hou噴pen鋁lv的de停ting留liu時shi辰chen應ying盡jin量liang縮suo短duan,並bing嚴yan厲li維wei護hu噴pen砂sha表biao麵mian,防fang止zhi受shou潮chao,塵chen埃ai和he油you汙wu等deng汙wu染ran。
噴塗用的鋁材料應稱心GB3190-82中L1的請求,噴塗層應不小於5層,塗層厚度為0.3mm.pentucengbuyunxucunzaiqipao,liewen,kongdongjipianzhahuohuansanfuzhekelidengquexian。penlvcengtingzhiwaiguanhehouduzhakanhegehou,xianyonglinsuantingzhishixichuzhi,zaitushuadizhanxingshuzhi,yiguanbitucengkongxi。
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