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聚氨酯保温管发泡制作过程

聚氨酯预制保温管,全称:高密度聚乙烯外护管聚氨酯泡沫塑料预制直埋保温管,由输送介质的工作钢管,聚氨酯硬质泡沫塑料保温层和高密度聚乙烯外护管紧密结合而成。在聚乙烯外护管与钢管之间的空隙在浇注聚氨酯硬质泡沫塑料保温层的制作工艺就是我们常说的“两步法。”

BU:CHUANGUANJIZHIJIAKUNZHA-ANXINGUANHEBAOWENCENGXUANDINGDEGAOMIDUJUYIXIWAIHUGUAN-GANGGUAN-FENDUANKUNZHAZHIJIA(1.5MI/DUAN)-JIANGKUNZHAHAOZHIJIAGANGGUANCHUANRUGAOMIDUJUYIXIWAIHUGUANNEI,ZHIZHIGANGGUANLIANGDUANLUOLUBUFENJUNWEI150mm-200mm。

DIERBU:JIANGFUHEGANGGUANZHIJINGHEBAOWENCENGHOUDUDEFALANFENGDUZAIGUANDAOLIANGDUANBINGJIANGQISUOJIN-DIAOZHENGFAPAOJIDEHUNHEBIWEI1:1.05-WAIHUGUANZHONGJIANZHENGSHANGWEIZHIKAIJIAOZHUKONG-JIANGFAPAOJIHUNHETOUDEJIAOZHUZUICHARUJIAOZHUKONG-JIAOZHUSHEDINGJIAOZHUSHIJIAN(TOULIAOLIANG/LIULIANG)-SULIAODUSAIFENGDUJIAOZHUKONG-JUANZHIFAPAOSHUHUA-CHAIXIEKATOU-JIANYAN-XIUZHENGTOULIAOLIANG-CHENGPIN。

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