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保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)是(shi)影響節能(neng)(neng)(neng)的(de)(de)(de)重(zhong)要因素，保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)的(de)(de)(de)研制與應用(yong)越來越受到世(shi)(shi)界各(ge)國(guo)的(de)(de)(de)普遍(bian)重(zhong)視。20世(shi)(shi)紀70年(nian)代后(hou)，國(guo)外(wai)(wai)普遍(bian)重(zhong)視保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)的(de)(de)(de)生(sheng)產(chan)和應用(yong)，力(li)求大(da)(da)幅度(du)減少能(neng)(neng)(neng)源的(de)(de)(de)消耗量，從(cong)而減少環境污染和溫(wen)(wen)(wen)(wen)(wen)室效應。國(guo)外(wai)(wai)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)工(gong)業(ye)已經有(you)很長(chang)的(de)(de)(de)歷史，而新型保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)材(cai)料(liao)也正(zheng)在(zai)不(bu)(bu)斷地涌(yong)現。1980年(nian)以前，我國(guo)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)的(de)(de)(de)發展(zhan)(zhan)(zhan)十分(fen)緩慢，為數不(bu)(bu)多的(de)(de)(de)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)廠只能(neng)(neng)(neng)生(sheng)產(chan)少量地下直埋保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)，但中(zhong)國(guo)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)工(gong)業(ye)經過(guo)30多年(nian)的(de)(de)(de)努(nu)力(li)，特別(bie)是(shi)經過(guo)近10年(nian)的(de)(de)(de)高(gao)(gao)速(su)發展(zhan)(zhan)(zhan)，不(bu)(bu)少產(chan)品(pin)從(cong)無(wu)到有(you)，從(cong)單一(yi)到多樣化，質(zhi)(zhi)量從(cong)低到高(gao)(gao)，應用(yong)越來越普遍(bian)。聚(ju)氨(an)酯(zhi)材(cai)料(liao)是(shi)國(guo)際上常(chang)(chang)(chang)用(yong)的(de)(de)(de)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)材(cai)料(liao)。硬(ying)質(zhi)(zhi)聚(ju)氨(an)酯(zhi)具有(you)很多優(you)異性(xing)能(neng)(neng)(neng)，在(zai)歐美廣泛用(yong)于保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)隔熱領域(yu)。歐美等發達的(de)(de)(de)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)材(cai)料(liao)中(zhong)約有(you)49％為聚(ju)氨(an)酯(zhi)材(cai)料(liao)，而在(zai)中(zhong)國(guo)這一(yi)比例尚不(bu)(bu)足20％。因此，聚(ju)氨(an)酯(zhi)材(cai)料(liao)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)管(guan)(guan)(guan)在(zai)中(zhong)國(guo)的(de)(de)(de)發展(zhan)(zhan)(zhan)還有(you)很大(da)(da)的(de)(de)(de)空間(jian)。 　　1、外(wai)(wai)護鋼(gang)(gang)管(guan)(guan)(guan)：保(bao)(bao)(bao)(bao)護保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)免受地下水侵蝕(shi)(shi)，支撐工(gong)作管(guan)(guan)(guan)并能(neng)(neng)(neng)承受一(yi)定(ding)的(de)(de)(de)外(wai)(wai)部(bu)荷載，保(bao)(bao)(bao)(bao)證(zheng)(zheng)工(gong)作管(guan)(guan)(guan)正(zheng)常(chang)(chang)(chang)工(gong)作。2、防腐(fu)層(ceng)：保(bao)(bao)(bao)(bao)護外(wai)(wai)鋼(gang)(gang)管(guan)(guan)(guan)避免腐(fu)蝕(shi)(shi)物(wu)腐(fu)蝕(shi)(shi)鋼(gang)(gang)管(guan)(guan)(guan)，延長(chang)鋼(gang)(gang)管(guan)(guan)(guan)使用(yong)壽命。3、減阻層(ceng)：保(bao)(bao)(bao)(bao)證(zheng)(zheng)工(gong)作鋼(gang)(gang)管(guan)(guan)(guan)熱脹冷(leng)縮自由運(yun)動。4、聚(ju)氨(an)酯(zhi)泡(pao)(pao)沫(mo)層(ceng)：保(bao)(bao)(bao)(bao)證(zheng)(zheng)介(jie)質(zhi)(zhi)溫(wen)(wen)(wen)(wen)(wen)度(du)保(bao)(bao)(bao)(bao)證(zheng)(zheng)外(wai)(wai)護管(guan)(guan)(guan)表面(mian)保(bao)(bao)(bao)(bao)持(chi)常(chang)(chang)(chang)溫(wen)(wen)(wen)(wen)(wen)。5、阻隔、反射層(ceng)：保(bao)(bao)(bao)(bao)證(zheng)(zheng)有(you)機泡(pao)(pao)沫(mo)材(cai)料(liao)不(bu)(bu)進入無(wu)機硬(ying)質(zhi)(zhi)耐高(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)；反射耐高(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)部(bu)分(fen)熱量。6、工(gong)作鋼(gang)(gang)管(guan)(guan)(guan)：保(bao)(bao)(bao)(bao)證(zheng)(zheng)輸送介(jie)質(zhi)(zhi)正(zheng)常(chang)(chang)(chang)流動。7、無(wu)機硬(ying)質(zhi)(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)：耐高(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)，保(bao)(bao)(bao)(bao)證(zheng)(zheng)與有(you)機保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)之間(jian)的(de)(de)(de)界面(mian)溫(wen)(wen)(wen)(wen)(wen)度(du)，保(bao)(bao)(bao)(bao)證(zheng)(zheng)泡(pao)(pao)沫(mo)不(bu)(bu)被炭(tan)化。