國內最新聞資訊報道 記者（賈阿曉）今日獲悉：3PE防腐鋼管聚乙烯層端麵應形成不大於30度的倒角
，聚乙烯層端部外可保留不超過20mm的環氧粉末塗層。應防止防腐管端部防腐層剝離或翹起。管端留頭采用電動鋼絲刷進行管端留頭處理
，操作時按2~3cifenduanjinxing，yidadaobiaozhunguidingyaoqiu。yongyuxiumoguanduanliutoufangfucengdaojiaodegangsishua，gongzuomianyingpingzheng，wutuao。gangguanfangfucengzhizuojieshuhou，yingjishijinxinglengquegudingchengxing，kecaiyongxunhuanshuijiaotushiduifangfuwandegangguanjinxingfangfucengbiaocengdelengque，lengquecaiquzhuduanfencifangshi。shengchanqian

，xianqidongjiaotushidexunhuanshuibengdianji。tiaozhenglengqueshuiguangefamenkaiguan，kongzhilengqueshuidedaxiao，bimianshuiliuguosuzaochengduifangfutucengdechongji
，yingxiangtucengdewaiguanchengxingzhiliang。zaigangguanjinrujiaotushidiyizuchuandonglunqian
，xianyongdiyidaolengqueshuijinxinglengque。zheyanggangguanbiaocenggangfangfushangdetucengzaigundongdaodiyizujiaolunshang
，fangfucengbuhuipohuai，baochiwanhao。genjuguanjingdedaxiaojihuanjingwenduchayi，caiqu2~4段冷卻水進行逐段分次的冷卻，鋼管冷卻溫度不高於60℃，並確保熔結環氧塗層固化完全。