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聚(ju)(ju)氨酯(zhi)(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)是(shi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)件中的一(yi)種，保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)構成(cheng)，是(shi)由高密度聚(ju)(ju)乙烯外套管(guan)(guan)(guan)、聚(ju)(ju)氨酯(zhi)(zhi)泡沫保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層及內工作鋼(gang)(gang)(gang)管(guan)(guan)(guan)緊密結合(he)而成(cheng)。保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)主(zhu)(zhu)用(yong)(yong)于保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)直管(guan)(guan)(guan)的轉向，一(yi)般與保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)道配套使用(yong)(yong)，是(shi)根(gen)據保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)工程(cheng)(cheng)管(guan)(guan)(guan)線設計時用(yong)(yong)于補償作用(yong)(yong)，使彎(wan)(wan)(wan)(wan)頭(tou)(tou)部位也能(neng)(neng)有足夠(gou)的保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)性(xing)能(neng)(neng)，標準彎(wan)(wan)(wan)(wan)頭(tou)(tou)角度：30度、45度、60度、90度 。聚(ju)(ju)氨酯(zhi)(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)特(te)點(dian)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)性(xing)能(neng)(neng)好，具有很強(qiang)的防水(shui)和(he)耐(nai)腐蝕能(neng)(neng)力(li)，可(ke)直接埋(mai)入地下或水(shui)中，施工簡便(bian)迅速(su)，綜(zong)合(he)造價低，使用(yong)(yong)壽命(ming)長，檢(jian)修方便(bian)費用(yong)(yong)低。廣泛用(yong)(yong)于液體、氣(qi)體的輸送管(guan)(guan)(guan)網(wang)(wang)， 化工管(guan)(guan)(guan)道保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)工程(cheng)(cheng)石(shi)油、化工、集中供(gong)熱(re)熱(re)網(wang)(wang)、中央(yang)空調通風管(guan)(guan)(guan)道、市(shi)政工程(cheng)(cheng)等。聚(ju)(ju)氨酯(zhi)(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)主(zhu)(zhu)要(yao)執行標準CJ/T200—2004《城鎮(zhen)供(gong)熱(re)預制(zhi)直埋(mai)蒸汽(qi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)技術條件》，CJ/T104---2005《城鎮(zhen)供(gong)熱(re)直埋(mai)蒸汽(qi)管(guan)(guan)(guan)道技術規程(cheng)(cheng)》，SY/T114-2000，SY/T115-2001《高密度聚(ju)(ju)乙烯聚(ju)(ju)氨酯(zhi)(zhi)發泡保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)鋼(gang)(gang)(gang)管(guan)(guan)(guan)》。主(zhu)(zhu)要(yao)參數耐(nai)熱(re)性(xing)，耐(nai)寒性(xing)，粘結強(qiang)度，抗壓強(qiang)度，吸水(shui)率(lv)。聚(ju)(ju)氨酯(zhi)(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)彎(wan)(wan)(wan)(wan)頭(tou)(tou)按照生產工藝可(ke)分(fen)為：焊接彎(wan)(wan)(wan)(wan)頭(tou)(tou)、沖壓彎(wan)(wan)(wan)(wan)頭(tou)(tou)、推制(zhi)彎(wan)(wan)(wan)(wan)頭(tou)(tou)、鑄造彎(wan)(wan)(wan)(wan)頭(tou)(tou)等。 材質主(zhu)(zhu)要(yao)有不銹鋼(gang)(gang)(gang)，碳鋼(gang)(gang)(gang)和(he)合(he)金鋼(gang)(gang)(gang)。該產品不僅(jin)具有傳統地溝(gou)和(he)架(jia)空敷設管(guan)(guan)(guan)道難(nan)以比擬的先(xian)進技術、實用(yong)(yong)性(xing)能(neng)(neng)，而且還(huan)具有顯著的社會效益和(he)經濟效益，也是(shi)供(gong)熱(re)節(jie)能(neng)(neng)的有力(li)措施。