紫外線來(lai)源：南(nan)(nan)(nan)京(jing)明塑(su)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)業有(you)(you)(you)限(xian)公司南(nan)(nan)(nan)京(jing)HDPE雙(shuang)壁波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)HDPE塑(su)鋼(gang)(gang)(gang)纏繞管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)HDPE雙(shuang)壁纏繞排(pai)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)HDPE鋼(gang)(gang)(gang)帶增(zeng)強螺旋波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)排(pai)水(shui)排(pai)污管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)高密度(du)(du)(du)(du)聚乙(yi)(yi)烯波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)(nan)京(jing)塑(su)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)選(xuan)擇(ze)南(nan)(nan)(nan)京(jing)鋼(gang)(gang)(gang)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)有(you)(you)(you)沒(mei)有(you)(you)(you)什么比(bi)較獨特的(de)(de)(de)(de)(de)(de)(de)(de)(de)方式(shi)？金(jin)(jin)(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)并沒(mei)有(you)(you)(you)詳細的(de)(de)(de)(de)(de)(de)(de)(de)(de)選(xuan)型軟件，一(yi)(yi)般情況(kuang)(kuang)下(xia)，在(zai)對(dui)控(kong)制(zhi)閥(fa)進(jin)行(xing)選(xuan)型時(shi)順(shun)便進(jin)行(xing)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)選(xuan)擇(ze)，其材(cai)(cai)質(zhi)(zhi)(zhi)(zhi)跟閥(fa)桿(gan)材(cai)(cai)質(zhi)(zhi)(zhi)(zhi)相同(tong)(tong)（有(you)(you)(you)時(shi)我(wo)們也(ye)以(yi)為閥(fa)桿(gan)與波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)厚度(du)(du)(du)(du)不(bu)同(tong)(tong)，受侵蝕的(de)(de)(de)(de)(de)(de)(de)(de)(de)情況(kuang)(kuang)也(ye)會(hui)不(bu)同(tong)(tong)，所以(yi)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)材(cai)(cai)質(zhi)(zhi)(zhi)(zhi)有(you)(you)(you)時(shi)也(ye)會(hui)比(bi)閥(fa)桿(gan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)），波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)伸縮量由(you)控(kong)制(zhi)閥(fa)的(de)(de)(de)(de)(de)(de)(de)(de)(de)行(xing)程來(lai)決定，這(zhe)些(xie)(xie)都(dou)(dou)是(shi)(shi)(shi)(shi)(shi)比(bi)較直觀(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)參(can)數(shu)，至于其他(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)參(can)數(shu)，例如(ru)(ru)體(ti)積變(bian)化率(lv)，軸向剛度(du)(du)(du)(du)、耐壓(ya)性等(deng)都(dou)(dou)是(shi)(shi)(shi)(shi)(shi)通過計算得(de)出的(de)(de)(de)(de)(de)(de)(de)(de)(de)，而這(zhe)些(xie)(xie)參(can)數(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)計算都(dou)(dou)是(shi)(shi)(shi)(shi)(shi)通過固(gu)定的(de)(de)(de)(de)(de)(de)(de)(de)(de)公式(shi)，并沒(mei)有(you)(you)(you)其獨特的(de)(de)(de)(de)(de)(de)(de)(de)(de)方式(shi)成形(xing)(xing)(xing)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)也(ye)叫機(ji)(ji)械(xie)成形(xing)(xing)(xing)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)或一(yi)(yi)次(ci)性波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，是(shi)(shi)(shi)(shi)(shi)經由(you)機(ji)(ji)械(xie)拉伸加(jia)(jia)壓(ya)制(zhi)得(de)的(de)(de)(de)(de)(de)(de)(de)(de)(de)；焊(han)接(jie)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)(shi)(shi)(shi)將(jiang)兩(liang)片波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)部(bu)件依次(ci)焊(han)接(jie)制(zhi)得(de)的(de)(de)(de)(de)(de)(de)(de)(de)(de)。南(nan)(nan)(nan)京(jing)鋼(gang)(gang)(gang)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)分類及相關區別另外市場(chang)上開(kai)始(shi)泛起一(yi)(yi)種(zhong)(zhong)襯四氟波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，就是(shi)(shi)(shi)(shi)(shi)金(jin)(jin)(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)內(nei)(nei)部(bu)襯一(yi)(yi)層四氟乙(yi)(yi)烯，而且(qie)賣的(de)(de)(de)(de)(de)(de)(de)(de)(de)比(bi)較好(hao)，說(shuo)明應(ying)用仍(reng)是(shi)(shi)(shi)(shi)(shi)不(bu)錯的(de)(de)(de)(de)(de)(de)(de)(de)(de)，但是(shi)(shi)(shi)(shi)(shi)我(wo)以(yi)為這(zhe)種(zhong)(zhong)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)仍(reng)是(shi)(shi)(shi)(shi)(shi)會(hui)受到諸如(ru)(ru)塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)因素限(xian)制(zhi)，而且(qie)更重要的(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)點就是(shi)(shi)(shi)(shi)(shi)受溫(wen)(wen)度(du)(du)(du)(du)影響更加(jia)(jia)顯著，由(you)于金(jin)(jin)(jin)屬(shu)和四氟乙(yi)(yi)烯的(de)(de)(de)(de)(de)(de)(de)(de)(de)伸縮度(du)(du)(du)(du)不(bu)同(tong)(tong)，所以(yi)溫(wen)(wen)度(du)(du)(du)(du)變(bian)化大是(shi)(shi)(shi)(shi)(shi)不(bu)是(shi)(shi)(shi)(shi)(shi)會(hui)造成四氟乙(yi)(yi)烯的(de)(de)(de)(de)(de)(de)(de)(de)(de)脫(tuo)落，因為我(wo)司目(mu)前還沒(mei)有(you)(you)(you)該類型閥(fa)門(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)應(ying)用經驗(yan)，所以(yi)這(zhe)里就未(wei)幾說(shuo)了，至于塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)方面(mian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)足，還望讀者增(zeng)補指導。塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)制(zhi)法簡樸，在(zai)有(you)(you)(you)些(xie)(xie)情況(kuang)(kuang)下(xia)能(neng)夠代替金(jin)(jin)(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)節約本錢，價格便宜，伸縮機(ji)(ji)能(neng)等(deng)特點凸起。金(jin)(jin)(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)根據(ju)加(jia)(jia)工(gong)形(xing)(xing)(xing)式(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)同(tong)(tong)可分為成形(xing)(xing)(xing)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和焊(han)接(jie)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)兩(liang)種(zhong)(zhong)形(xing)(xing)(xing)式(shi)。控(kong)制(zhi)閥(fa)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)所起的(de)(de)(de)(de)(de)(de)(de)(de)(de)作用只有(you)(you)(you)一(yi)(yi)個(ge)——隔離，主要分三種(zhong)(zhong)：一(yi)(yi)種(zhong)(zhong)是(shi)(shi)(shi)(shi)(shi)防止閥(fa)內(nei)(nei)介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)擴散到外界，就是(shi)(shi)(shi)(shi)(shi)針對(dui)閥(fa)門(men)(men)內(nei)(nei)所流介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)為化學(xue)(xue)性質(zhi)(zhi)(zhi)(zhi)活潑或有(you)(you)(you)毒(du)有(you)(you)(you)害的(de)(de)(de)(de)(de)(de)(de)(de)(de)氣體(ti)、易揮發的(de)(de)(de)(de)(de)(de)(de)(de)(de)液體(ti)及珍貴的(de)(de)(de)(de)(de)(de)(de)(de)(de)介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)，例如(ru)(ru)氯(lv)氣、硅(gui)(gui)粉等(deng)等(deng)。但是(shi)(shi)(shi)(shi)(shi)塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)應(ying)用受三個(ge)因素的(de)(de)(de)(de)(de)(de)(de)(de)(de)限(xian)制(zhi)，一(yi)(yi)個(ge)是(shi)(shi)(shi)(shi)(shi)閥(fa)門(men)(men)所處環境的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)度(du)(du)(du)(du)及介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)度(du)(du)(du)(du)，溫(wen)(wen)度(du)(du)(du)(du)太高輕易造成波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)老(lao)化變(bian)形(xing)(xing)(xing)，所以(yi)它(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)長期使用溫(wen)(wen)度(du)(du)(du)(du)一(yi)(yi)般不(bu)超過180°C，低溫(wen)(wen)情況(kuang)(kuang)下(xia)沒(mei)有(you)(you)(you)詳細要求；二(er)是(shi)(shi)(shi)(shi)(shi)受管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)內(nei)(nei)壓(ya)力限(xian)制(zhi)（一(yi)(yi)般選(xuan)擇(ze)塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)況(kuang)(kuang)壓(ya)力不(bu)高于12公斤），壓(ya)力過高則會(hui)將(jiang)閥(fa)門(men)(men)內(nei)(nei)襯材(cai)(cai)料從閥(fa)門(men)(men)內(nei)(nei)壁吸(xi)出，造成閥(fa)門(men)(men)堵塞；另一(yi)(yi)個(ge)因素就是(shi)(shi)(shi)(shi)(shi)介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)化學(xue)(xue)性質(zhi)(zhi)(zhi)(zhi)，塑(su)料波(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)可應(ying)用在(zai)甲酸、鹽(yan)酸、氯(lv)化物(wu)等(deng)強侵蝕性介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)上，但是(shi)(shi)(shi)(shi)(shi)當介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)(shi)(shi)與其分子式(shi)相似(si)的(de)(de)(de)(de)(de)(de)(de)(de)(de)介(jie)(jie)質(zhi)(zhi)(zhi)(zhi)時(shi)，就會(hui)發生(sheng)相似(si)相溶，此時(shi)不(bu)可應(ying)用，例如(ru)(ru)四氯(lv)化硅(gui)(gui)。。

南京排水排污管哪家專業　　塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)與(yu)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)比(bi)較之下(xia)(xia)的(de)(de)(de)長處(chu)(chu)：　　當成(cheng)孔(kong)(kong)資料(liao)(liao)受到(dao)(dao)破(po)壞后(hou)，漿體是預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)混凝(ning)土(tu)結構(gou)(gou)中(zhong)(zhong)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)鋼(gang)材的(de)(de)(de)最(zui)后(hou)一(yi)道(dao)防護屏障塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)是一(yi)種新型成(cheng)孔(kong)(kong)資料(liao)(liao)，與(yu)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)比(bi)較，它具有(you)以下(xia)(xia)長處(chu)(chu)：　　塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)原資料(liao)(liao)是HDPE。它的(de)(de)(de)耐(nai)(nai)腐蝕(shi)性(xing)(xing)(xing)(xing)能(neng)(neng)遠(yuan)遠(yuan)優于(yu)金(jin)(jin)(jin)屬(shu)(shu)，不(bu)怕酸(suan)、堿腐蝕(shi)，它本(ben)身不(bu)腐蝕(shi)，能(neng)(neng)有(you)效(xiao)(xiao)地維(wei)護預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)筋不(bu)受腐蝕(shi)。很多(duo)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)結構(gou)(gou)承受著外界嚴(yan)峻的(de)(de)(de)影響，如除冰鹽或(huo)(huo)鹽水。當后(hou)張(zhang)構(gou)(gou)件(jian)由于(yu)防水層的(de)(de)(de)崩潰、微裂縫漏(lou)水和(he)排水設(she)施的(de)(de)(de)阻塞或(huo)(huo)失(shi)效(xiao)(xiao)時，預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)筋就會或(huo)(huo)許受到(dao)(dao)腐蝕(shi)效(xiao)(xiao)果。塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)能(neng)(neng)為預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)筋供(gong)給一(yi)種遠(yuan)遠(yuan)優于(yu)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)屏障維(wei)護效(xiao)(xiao)果，能(neng)(neng)避(bi)免(mian)有(you)害物質(zhi)穿(chuan)透(tou)管(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)污(wu)染，然后(hou)保證了后(hou)張(zhang)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)結構(gou)(gou)具有(you)更(geng)好的(de)(de)(de)耐(nai)(nai)久性(xing)(xing)(xing)(xing)，　　同等(deng)條件(jian)下(xia)(xia)，SBG（B）塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)管(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)(kong)道(dao)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系數(shu)(shu)顯著小于(yu)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)(kong)道(dao)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系數(shu)(shu)，減小了張(zhang)拉過程中(zhong)(zhong)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)(li)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)損失(shi)。一(yi)般地，塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系數(shu)(shu)取(qu)(qu)0.14，而(er)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系數(shu)(shu)取(qu)(qu)0.25。（0.2-0.25）公(gong)路橋規(gui)，誤差(cha)系數(shu)(shu)為0.0015，　　塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)強度高(gao)(gao)，不(bu)怕踩壓，不(bu)易被振搗捧鑿破(po)，其(qi)密封性(xing)(xing)(xing)(xing)能(neng)(neng)和(he)抗(kang)滲漏(lou)性(xing)(xing)(xing)(xing)能(neng)(neng)高(gao)(gao)于(yu)金(jin)(jin)(jin)屬(shu)(shu)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)，更(geng)適用于(yu)真空灌漿，　　塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)不(bu)導(dao)電，能(neng)(neng)夠避(bi)免(mian)雜散(san)電流腐蝕(shi)，而(er)金(jin)(jin)(jin)屬(shu)(shu)是電的(de)(de)(de)良導(dao)體，　　塑(su)(su)(su)(su)料(liao)(liao)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)具有(you)更(geng)好的(de)(de)(de)耐(nai)(nai)勞性(xing)(xing)(xing)(xing)能(neng)(neng)，能(neng)(neng)大(da)大(da)提高(gao)(gao)構(gou)(gou)件(jian)的(de)(de)(de)抗(kang)疲勞能(neng)(neng)力(li)(li)(li)。。

輸油管道預應(ying)(ying)力(li)(li)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠家出(chu)產的波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)有(you)塑(su)料材(cai)料的和(he)金屬(shu)材(cai)料的，在(zai)運(yun)用的過程中，要根(gen)據自己詳細的運(yun)用情(qing)況來做以挑選，預應(ying)(ying)力(li)(li)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的原材(cai)料多是運(yun)用再生HDPE顆(ke)粒(li)擠(ji)出(chu)出(chu)產成型(xing)，其(qi)特性要求原材(cai)料強(qiang)度高，柔韌性好(hao)，方(fang)能(neng)(neng)使出(chu)產出(chu)來的管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)符合國標標準預應(ying)(ying)力(li)(li)塑(su)料波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)預留(liu)孔道(dao)的沖(chong)(chong)突(tu)系數(shu)明(ming)顯(xian)小于(yu)(yu)(yu)金屬(shu)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)預留(liu)孔道(dao)的沖(chong)(chong)突(tu)系數(shu)，減小了(le)張(zhang)拉過程中預應(ying)(ying)力(li)(li)的沖(chong)(chong)突(tu)丟失(shi)。一般地，塑(su)料波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的沖(chong)(chong)突(tu)系數(shu)取0.14，而金屬(shu)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的沖(chong)(chong)突(tu)系數(shu)取0.25；預應(ying)(ying)力(li)(li)塑(su)料波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的強(qiang)度高，不(bu)怕(pa)(pa)踩壓，不(bu)易被振搗捧鑿(zao)破，其(qi)密封功(gong)能(neng)(neng)和(he)抗滲(shen)漏(lou)功(gong)能(neng)(neng)高于(yu)(yu)(yu)金屬(shu)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，更(geng)適(shi)用于(yu)(yu)(yu)真(zhen)空灌漿。預應(ying)(ying)力(li)(li)波(bo)(bo)紋(wen)(wen)(wen)(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)它(ta)的耐腐(fu)蝕(shi)功(gong)能(neng)(neng)遠遠優于(yu)(yu)(yu)金屬(shu)，不(bu)怕(pa)(pa)酸、堿(jian)腐(fu)蝕(shi)，它(ta)本身不(bu)腐(fu)蝕(shi)，能(neng)(neng)有(you)效(xiao)地保護預應(ying)(ying)力(li)(li)筋(jin)不(bu)受腐(fu)蝕(shi)。許多預應(ying)(ying)力(li)(li)結構承受著外界嚴峻的影響(xiang)，如除冰(bing)鹽或鹽水。當(dang)后張(zhang)構件因(yin)為防水層的崩潰、微裂縫漏(lou)水和(he)排水設施的堵塞或失(shi)效(xiao)時(shi)，預應(ying)(ying)力(li)(li)筋(jin)就會可(ke)能(neng)(neng)受到腐(fu)蝕(shi)作用。。

水泥管準備(bei)(bei)(bei)好施工過(guo)(guo)程所(suo)用(yong)(yong)的(de)材(cai)料(liao)和工具，對真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)、攪(jiao)漿(jiang)(jiang)機、壓(ya)(ya)(ya)漿(jiang)(jiang)泵(beng)及附屬(shu)配件(jian)的(de)性(xing)能(neng)進(jin)行檢查(cha)，按順(shun)序連接真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)壓(ya)(ya)(ya)漿(jiang)(jiang)工藝的(de)施工設備(bei)(bei)(bei)　　　　試(shi)抽真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)：打開真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)閥，其他閥門均關(guan)(guan)閉(bi)，啟動真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)，當真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)上壓(ya)(ya)(ya)力(li)(li)表數值(zhi)(zhi)達(da)到-0.08MPa時，關(guan)(guan)閉(bi)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)，約1min后觀察(cha)壓(ya)(ya)(ya)力(li)(li)數值(zhi)(zhi)，若壓(ya)(ya)(ya)力(li)(li)值(zhi)(zhi)保持(chi)不變，則證(zheng)明管(guan)內已達(da)到真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)狀態(tai)。　　　　水(shui)泥漿(jiang)(jiang)拌(ban)制時，將水(shui)、水(shui)泥、外加(jia)劑等按設計比例稱(cheng)量，并放入(ru)攪(jiao)拌(ban)機中(zhong)攪(jiao)拌(ban)均勻，將其倒入(ru)設有過(guo)(guo)濾網的(de)漿(jiang)(jiang)罐中(zhong)，準備(bei)(bei)(bei)壓(ya)(ya)(ya)漿(jiang)(jiang)。在(zai)壓(ya)(ya)(ya)漿(jiang)(jiang)過(guo)(guo)程中(zhong)，真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)要持(chi)續(xu)工作(zuo)(zuo)。　　　　壓(ya)(ya)(ya)漿(jiang)(jiang)結束后，壓(ya)(ya)(ya)漿(jiang)(jiang)泵(beng)還要繼(ji)續(xu)工作(zuo)(zuo)，觀察(cha)壓(ya)(ya)(ya)力(li)(li)表數值(zhi)(zhi)，當其壓(ya)(ya)(ya)力(li)(li)值(zhi)(zhi)為0.7MPa時，保持(chi)該壓(ya)(ya)(ya)力(li)(li)值(zhi)(zhi)2min左右，充(chong)分完成排(pai)氣和泌水(shui)過(guo)(guo)程，以保證(zheng)波紋管(guan)內漿(jiang)(jiang)體密實和飽滿，此(ci)時，壓(ya)(ya)(ya)漿(jiang)(jiang)結束，可關(guan)(guan)閉(bi)壓(ya)(ya)(ya)漿(jiang)(jiang)泵(beng)和壓(ya)(ya)(ya)漿(jiang)(jiang)閥門。　　　　封端混凝土(tu)應采(cai)用(yong)(yong)無收縮(suo)或(huo)收縮(suo)性(xing)很小的(de)混凝土(tu)，按設計配比制作(zuo)(zuo)，在(zai)壓(ya)(ya)(ya)漿(jiang)(jiang)結束后及時完成端頭封端工作(zuo)(zuo)。。

pvc管排水管　　12.3、操作(zuo)方法(fa)：將脹(zhang)管(guan)器脹(zhang)頭插入至(zhi)管(guan)內進行擴(kuo)(kuo)管(guan)，在(zai)脹(zhang)管(guan)完成后將銅管(guan)轉(zhuan)一(yi)個(ge)小角度，修整脹(zhang)管(guan)頭留下(xia)直線痕跡　　13、喇(la)(la)叭口(kou)(kou)(kou)(kou)(kou)(kou)：冷(leng)媒管(guan)與管(guan)接頭連接時(shi)(shi)(shi)，冷(leng)媒管(guan)口(kou)(kou)(kou)(kou)(kou)(kou)必須用(yong)專業(ye)的(de)擴(kuo)(kuo)口(kou)(kou)(kou)(kou)(kou)(kou)工具，以保證擴(kuo)(kuo)口(kou)(kou)(kou)(kou)(kou)(kou)的(de)質量，防止(zhi)接口(kou)(kou)(kou)(kou)(kou)(kou)泄漏。　　13.1、用(yong)擴(kuo)(kuo)口(kou)(kou)(kou)(kou)(kou)(kou)器擴(kuo)(kuo)喇(la)(la)叭口(kou)(kou)(kou)(kou)(kou)(kou)，管(guan)口(kou)(kou)(kou)(kou)(kou)(kou)應(ying)平整無毛刺，喇(la)(la)叭口(kou)(kou)(kou)(kou)(kou)(kou)應(ying)無變(bian)形和裂紋。　　13.2、與管(guan)接頭連接時(shi)(shi)(shi)，先將喇(la)(la)叭口(kou)(kou)(kou)(kou)(kou)(kou)與管(guan)接頭對接好(hao)，用(yong)手先擰緊(jin)后，再采(cai)(cai)用(yong)兩(liang)(liang)個(ge)活動扳(ban)手同時(shi)(shi)(shi)操作(zuo)加(jia)緊(jin)。　　14、風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)：小部位往(wang)往(wang)被很多消費者(zhe)疏忽，但(dan)這部分對室內裝飾效果影響很大(da)。　　14.1、常(chang)見風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)有兩(liang)(liang)種材料：一(yi)種是(shi)ABS風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)，另一(yi)種是(shi)鋁合金風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)。兩(liang)(liang)種風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)各有利弊(bi)。　　ABS風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)：采(cai)(cai)用(yong)ABS工程材料制作(zuo)，不容易(yi)結露。但(dan)該材料有一(yi)定的(de)熱脹(zhang)冷(leng)縮(suo)系數，所以在(zai)使用(yong)過程有可能(neng)發出吱(zhi)吱(zhi)聲，冬天氣溫低風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)也可能(neng)產生輕微的(de)拱(gong)起。長時(shi)(shi)(shi)間使用(yong)后風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)會(hui)變(bian)黃，并不容易(yi)清(qing)洗。　　鋁合金風(feng)(feng)口(kou)(kou)(kou)(kou)(kou)(kou)：優(you)點(dian)在(zai)于(yu)不易(yi)變(bian)形，也不易(yi)變(bian)色。

　　氯丁橡(xiang)(xiang)膠(jiao)棒是(shi)以(yi)氯丁橡(xiang)(xiang)膠(jiao)為(wei)(wei)(wei)主加(jia)與各種合成(cheng)(cheng)橡(xiang)(xiang)膠(jiao)為(wei)(wei)(wei)主要原料，摻加(jia)各種助劑及(ji)填(tian)充(chong)料，經(jing)塑煉、混煉、擠出成(cheng)(cheng)型(xing)，高(gao)(gao)溫硫(liu)化，它具有(you)耐(nai)老化、耐(nai)油、耐(nai)磨性(xing)、適(shi)用(yong)(yong)于(yu)在面板壩(ba)的(de)(de)理想材料　　橡(xiang)(xiang)膠(jiao)抽(chou)拔(ba)(ba)(ba)管是(shi)一(yi)種用(yong)(yong)于(yu)混凝(ning)(ning)土構件小直徑(jing)成(cheng)(cheng)孔(kong)(kong)(kong)的(de)(de)新型(xing)芯模，它主要為(wei)(wei)(wei)橋(qiao)梁上形成(cheng)(cheng)較(jiao)小預(yu)應力孔(kong)(kong)(kong)而(er)設計，也可(ke)(ke)用(yong)(yong)于(yu)其(qi)它建筑行業(ye)混凝(ning)(ning)土的(de)(de)成(cheng)(cheng)孔(kong)(kong)(kong)。它是(shi)利用(yong)(yong)其(qi)高(gao)(gao)強度(du)，高(gao)(gao)彈性(xing)和(he)橡(xiang)(xiang)膠(jiao)體積不(bu)可(ke)(ke)壓縮性(xing)能，在管體軸向(xiang)受(shou)(shou)力時(shi)(shi)，會軸向(xiang)伸(shen)長(chang)，徑(jing)向(xiang)自然彎細。抽(chou)拔(ba)(ba)(ba)有(you)力，施工(gong)(gong)方便，可(ke)(ke)反(fan)復(fu)使用(yong)(yong)，壽命(ming)長(chang)，表(biao)面光滑，平整度(du)好，預(yu)留孔(kong)(kong)(kong)孔(kong)(kong)(kong)壁光滑，且抽(chou)拔(ba)(ba)(ba)時(shi)(shi)不(bu)受(shou)(shou)混凝(ning)(ning)土凝(ning)(ning)固時(shi)(shi)間(jian)(jian)的(de)(de)限制，經(jing)濟(ji)效(xiao)益(yi)是(shi)顯而(er)易(yi)見，受(shou)(shou)到廣大(da)客戶(hu)的(de)(de)青睞(lai)和(he)好評。　　抽(chou)拔(ba)(ba)(ba)管的(de)(de)產品(pin)特點(dian)：　　1、抽(chou)拔(ba)(ba)(ba)管較(jiao)大(da)特點(dian)是(shi)能降低工(gong)(gong)程成(cheng)(cheng)本。反(fan)復(fu)使用(yong)(yong)達100-200次(ci)，經(jing)濟(ji)合算，與金屬(shu)波紋(wen)管和(he)塑料波紋(wen)管相比，大(da)大(da)降低了成(cheng)(cheng)本，其(qi)經(jing)濟(ji)效(xiao)益(yi)是(shi)顯而(er)易(yi)見的(de)(de)。　　2、孔(kong)(kong)(kong)壁光滑，尺(chi)寸準確，成(cheng)(cheng)孔(kong)(kong)(kong)精(jing)度(du)高(gao)(gao)。　　3、在混凝(ning)(ning)土初凝(ning)(ning)任何時(shi)(shi)間(jian)(jian)內都可(ke)(ke)抽(chou)拔(ba)(ba)(ba)，可(ke)(ke)縮短工(gong)(gong)期。　　4、人(ren)力、卷(juan)揚機、工(gong)(gong)程車均(jun)可(ke)(ke)抽(chou)拔(ba)(ba)(ba)，操作簡單。　　5、可(ke)(ke)卷(juan)屈成(cheng)(cheng)捆，運輸、保存均(jun)很方便。　　使用(yong)(yong)方法：　　抽(chou)拔(ba)(ba)(ba)管的(de)(de)使用(yong)(yong)方法非常簡單，用(yong)(yong)固定(ding)環將抽(chou)拔(ba)(ba)(ba)管固定(ding)在正確的(de)(de)位置上，固定(ding)環的(de)(de)間(jian)(jian)隔以(yi)能控制懸垂為(wei)(wei)(wei)準，一(yi)般約(yue)為(wei)(wei)(wei)300-500mm。

　　塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)與金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)比較之(zhi)下的(de)(de)(de)長(chang)(chang)處(chu)(chu)：　　當成孔(kong)(kong)資料(liao)(liao)(liao)(liao)受(shou)(shou)到破壞后，漿體是(shi)預(yu)(yu)(yu)應(ying)力(li)混凝土結(jie)構(gou)(gou)中(zhong)預(yu)(yu)(yu)應(ying)力(li)鋼材的(de)(de)(de)最后一(yi)道防(fang)護(hu)(hu)屏障塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)是(shi)一(yi)種新型成孔(kong)(kong)資料(liao)(liao)(liao)(liao)，與金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)比較，它具有(you)以下長(chang)(chang)處(chu)(chu)：　　塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)原(yuan)資料(liao)(liao)(liao)(liao)是(shi)HDPE。它的(de)(de)(de)耐(nai)(nai)腐(fu)(fu)(fu)蝕性(xing)(xing)能(neng)遠(yuan)遠(yuan)優于(yu)(yu)金(jin)(jin)(jin)屬(shu)(shu)(shu)，不怕(pa)酸、堿(jian)腐(fu)(fu)(fu)蝕，它本身(shen)不腐(fu)(fu)(fu)蝕，能(neng)有(you)效(xiao)(xiao)地維(wei)護(hu)(hu)預(yu)(yu)(yu)應(ying)力(li)筋不受(shou)(shou)腐(fu)(fu)(fu)蝕。很(hen)多(duo)預(yu)(yu)(yu)應(ying)力(li)結(jie)構(gou)(gou)承(cheng)受(shou)(shou)著外(wai)界嚴(yan)峻的(de)(de)(de)影響(xiang)，如除冰鹽或鹽水(shui)。當后張構(gou)(gou)件(jian)由于(yu)(yu)防(fang)水(shui)層(ceng)的(de)(de)(de)崩(beng)潰(kui)、微裂縫漏水(shui)和排水(shui)設(she)施的(de)(de)(de)阻塞或失效(xiao)(xiao)時，預(yu)(yu)(yu)應(ying)力(li)筋就會或許受(shou)(shou)到腐(fu)(fu)(fu)蝕效(xiao)(xiao)果。塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)能(neng)為預(yu)(yu)(yu)應(ying)力(li)筋供(gong)給(gei)一(yi)種遠(yuan)遠(yuan)優于(yu)(yu)金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)屏障維(wei)護(hu)(hu)效(xiao)(xiao)果，能(neng)避(bi)免有(you)害物質穿透管(guan)(guan)(guan)(guan)(guan)道的(de)(de)(de)污染，然后保證了后張預(yu)(yu)(yu)應(ying)力(li)結(jie)構(gou)(gou)具有(you)更好(hao)的(de)(de)(de)耐(nai)(nai)久(jiu)性(xing)(xing)，　　同等條件(jian)下，SBG（B）塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)管(guan)(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)(kong)道的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系(xi)數顯著小于(yu)(yu)金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)(kong)道的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系(xi)數，減小了張拉過程中(zhong)預(yu)(yu)(yu)應(ying)力(li)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)損失。一(yi)般地，塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系(xi)數取(qu)0.14，而金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)摩(mo)(mo)擦(ca)(ca)系(xi)數取(qu)0.25。（0.2-0.25）公路橋規(gui)，誤差系(xi)數為0.0015，　　塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)強度高，不怕(pa)踩壓，不易(yi)被振搗捧鑿破，其(qi)密封性(xing)(xing)能(neng)和抗滲漏性(xing)(xing)能(neng)高于(yu)(yu)金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)，更適用(yong)于(yu)(yu)真空(kong)灌漿，　　塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)不導(dao)電(dian)(dian)，能(neng)夠避(bi)免雜散電(dian)(dian)流(liu)腐(fu)(fu)(fu)蝕，而金(jin)(jin)(jin)屬(shu)(shu)(shu)是(shi)電(dian)(dian)的(de)(de)(de)良導(dao)體，　　塑(su)(su)(su)料(liao)(liao)(liao)(liao)波(bo)(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)(guan)(guan)(guan)具有(you)更好(hao)的(de)(de)(de)耐(nai)(nai)勞性(xing)(xing)能(neng)，能(neng)大(da)大(da)提高構(gou)(gou)件(jian)的(de)(de)(de)抗疲(pi)勞能(neng)力(li)。。