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專業生產銷售大口徑厚壁國標螺旋鋼管,廠內加工防腐/保溫/涂塑

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地下供水用防腐螺旋鋼管廠家聯系方式

日期:2021-02-20

環氧煤瀝青冷纏帶還非常適應東北西北地區冬季氣溫低和冬季周期長的特點。零下10度同樣可以施工、固化。定型膠和基帶中都加入了促進劑和助劑。保證了低溫狀況下可以正常固化。同時環氧煤瀝青冷纏帶有很好的性價比。

地下供水用防腐螺旋鋼管廠家聯系方式

與環氧煤瀝青涂料相比,減少了工序,綜合造價低10%,施工速度提高了3倍;與聚乙烯、聚丙烯相比,綜合造價低30%以上,對現場條件要求遠遠低于它們兩種;與三層PE相比,綜合造價低80%,更方便于現場施工作業的項目。

目前國內外用于埋地管道的外防腐層主要有八種,屬于防腐纏帶類的有三種:聚乙烯膠粘帶、聚丙烯纏帶和環氧煤瀝青冷纏帶。環氧煤瀝青冷纏帶是屬于環氧煤瀝青玻璃布防腐層的改進產品。聚乙烯冷纏帶防腐鋼管涂膠前鋼表面必須干燥,要求涂膠量足、不得漏涂,涂膠后立即纏基帶,對寬度125mm基帶,壓邊寬度應大于10mm,對寬度250mm及以上基帶,壓邊寬度應大于20mm,纏帶時必須拉緊,使接觸緊密,表面平整無鼓包,纏帶后立即在帶上再均勻涂刷一層定型膠。每天工作結束后,用配套的稀釋劑清洗涂刷工具,稀釋劑用后濾去雜物,可再次使用,但必須密閉存放,并不得用來調稀無溶劑定型膠。

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