南京高密度聚乙烯波紋管廠一般地，塑料(liao)(liao)波(bo)紋管(guan)(guan)的摩(mo)擦系數(shu)取0.14，而金(jin)屬(shu)波(bo)紋管(guan)(guan)的摩(mo)擦系數(shu)取0.25（0.2-0.25）公路橋規，誤(wu)差系數(shu)為0.0015，　　塑料(liao)(liao)波(bo)紋管(guan)(guan)的強度高(gao)，不怕踩壓，不易(yi)被振搗(dao)捧鑿(zao)破，其密(mi)封性(xing)能(neng)(neng)和抗滲漏性(xing)能(neng)(neng)高(gao)于(yu)金(jin)屬(shu)波(bo)紋管(guan)(guan)，更適用(yong)于(yu)真空灌(guan)漿，　　塑料(liao)(liao)波(bo)紋管(guan)(guan)不導電(dian)(dian)，能(neng)(neng)夠避免雜散電(dian)(dian)流腐(fu)蝕(shi)，而金(jin)屬(shu)是電(dian)(dian)的良導體(ti)，　　塑料(liao)(liao)波(bo)紋管(guan)(guan)具有更好的耐(nai)勞(lao)性(xing)能(neng)(neng)，能(neng)(neng)大(da)大(da)提高(gao)構件的抗疲勞(lao)能(neng)(neng)力。。

抗震支架控(kong)制(zhi)閥(fa)上的(de)(de)(de)波紋管(guan)所(suo)起的(de)(de)(de)作用(yong)只有一(yi)(yi)個——隔離，主(zhu)要分三種：一(yi)(yi)種是(shi)防止閥(fa)內(nei)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)擴散到外界(jie)，就(jiu)是(shi)針對閥(fa)門內(nei)所(suo)流介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)為(wei)化(hua)(hua)學性(xing)(xing)質(zhi)(zhi)(zhi)(zhi)(zhi)活(huo)潑(po)或(huo)有毒有害的(de)(de)(de)氣體(ti)、易(yi)揮發的(de)(de)(de)液(ye)體(ti)及(ji)珍貴的(de)(de)(de)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)，例(li)如(ru)(ru)氯氣、硅(gui)粉(fen)等(deng)等(deng)但是(shi)塑(su)料(liao)(liao)波紋管(guan)的(de)(de)(de)應(ying)用(yong)受三個因素的(de)(de)(de)限制(zhi)，一(yi)(yi)個是(shi)閥(fa)門所(suo)處環境的(de)(de)(de)溫(wen)度(du)及(ji)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)溫(wen)度(du)，溫(wen)度(du)太高輕易(yi)造(zao)成(cheng)波紋管(guan)的(de)(de)(de)老(lao)化(hua)(hua)變(bian)形(xing)，所(suo)以它的(de)(de)(de)長期使用(yong)溫(wen)度(du)一(yi)(yi)般不超過(guo)180°C，低溫(wen)情況(kuang)下沒有詳細要求；二是(shi)受管(guan)道(dao)內(nei)壓力(li)限制(zhi)（一(yi)(yi)般選擇塑(su)料(liao)(liao)波紋管(guan)的(de)(de)(de)工況(kuang)壓力(li)不高于12公斤），壓力(li)過(guo)高則會(hui)將閥(fa)門內(nei)襯材料(liao)(liao)從(cong)閥(fa)門內(nei)壁(bi)吸出，造(zao)成(cheng)閥(fa)門堵(du)塞(sai)；另一(yi)(yi)個因素就(jiu)是(shi)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)化(hua)(hua)學性(xing)(xing)質(zhi)(zhi)(zhi)(zhi)(zhi)，塑(su)料(liao)(liao)波紋管(guan)可(ke)應(ying)用(yong)在甲酸、鹽酸、氯化(hua)(hua)物(wu)等(deng)強侵蝕(shi)性(xing)(xing)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)上，但是(shi)當介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)與其分子(zi)式(shi)相似的(de)(de)(de)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)時，就(jiu)會(hui)發生相似相溶(rong)，此時不可(ke)應(ying)用(yong)，例(li)如(ru)(ru)四氯化(hua)(hua)硅(gui)。。

南京PE雙壁波紋管廠來源：南(nan)(nan)京(jing)(jing)明(ming)塑管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)業有限(xian)公(gong)司南(nan)(nan)京(jing)(jing)HDPE雙壁波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)HDPE塑鋼(gang)纏繞管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)HDPE雙壁纏繞排水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)HDPE鋼(gang)帶增(zeng)強螺旋波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)排水(shui)排污(wu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)高密度(du)(du)聚(ju)乙烯波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)南(nan)(nan)京(jing)(jing)塑鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)在(zai)咱們平常經(jing)常運(yun)用(yong)到的(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)洗衣機(ji)(ji)的(de)(de)(de)(de)(de)(de)排水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、及(ji)抽(chou)油煙機(ji)(ji)的(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)安(an)裝的(de)(de)(de)(de)(de)(de)時(shi)候，咱們發現安(an)裝的(de)(de)(de)(de)(de)(de)是一種(zhong)波(bo)(bo)(bo)(bo)紋(wen)式(shi)(shi)的(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)，預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠家(jia)(jia)出(chu)產的(de)(de)(de)(de)(de)(de)預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)首要應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)于(yu)后(hou)張(zhang)預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)水(shui)泥結(jie)構，拉桿的(de)(de)(de)(de)(de)(de)成孔(kong)，具有密封性(xing)好、無滲水(shui)漏漿(jiang)、環剛度(du)(du)高、沖突(tu)參(can)數小、耐老化、抗電(dian)腐(fu)蝕(shi)、柔彈力(li)(li)(li)好、不易(yi)被搗棒鑿破和新式(shi)(shi)的(de)(de)(de)(de)(de)(de)聯接方式(shi)(shi)使施工聯接更方便(bian)的(de)(de)(de)(de)(de)(de)利(li)益，在(zai)各大鋼(gang)廠中(zhong)得到了廣泛的(de)(de)(de)(de)(de)(de)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠家(jia)(jia)出(chu)產的(de)(de)(de)(de)(de)(de)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)有塑料(liao)材(cai)料(liao)的(de)(de)(de)(de)(de)(de)和金(jin)屬(shu)材(cai)料(liao)的(de)(de)(de)(de)(de)(de)，在(zai)運(yun)用(yong)的(de)(de)(de)(de)(de)(de)過(guo)程中(zhong)，要根據自己詳(xiang)細的(de)(de)(de)(de)(de)(de)運(yun)用(yong)情況來做以挑(tiao)選，預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)原材(cai)料(liao)多是運(yun)用(yong)再生HDPE顆粒擠出(chu)出(chu)產成型，其特性(xing)要求原材(cai)料(liao)強度(du)(du)高，柔韌性(xing)好，方能(neng)(neng)使出(chu)產出(chu)來的(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)符合(he)國(guo)標標準。預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)塑料(liao)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)道(dao)(dao)的(de)(de)(de)(de)(de)(de)沖突(tu)系(xi)數明(ming)顯小于(yu)金(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)預(yu)(yu)(yu)留孔(kong)道(dao)(dao)的(de)(de)(de)(de)(de)(de)沖突(tu)系(xi)數，減小了張(zhang)拉過(guo)程中(zhong)預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)的(de)(de)(de)(de)(de)(de)沖突(tu)丟失。一般地(di)(di)，塑料(liao)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)沖突(tu)系(xi)數取(qu)(qu)0.14，而金(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)沖突(tu)系(xi)數取(qu)(qu)0.25；預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)塑料(liao)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)強度(du)(du)高，不怕(pa)踩壓，不易(yi)被振搗捧鑿破，其密封功能(neng)(neng)和抗滲漏功能(neng)(neng)高于(yu)金(jin)屬(shu)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，更適用(yong)于(yu)真空灌漿(jiang)。預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)(bo)(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)它的(de)(de)(de)(de)(de)(de)耐腐(fu)蝕(shi)功能(neng)(neng)遠(yuan)遠(yuan)優(you)于(yu)金(jin)屬(shu)，不怕(pa)酸、堿腐(fu)蝕(shi)，它本身不腐(fu)蝕(shi)，能(neng)(neng)有效(xiao)地(di)(di)保(bao)護(hu)預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)筋不受腐(fu)蝕(shi)。許多預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)結(jie)構承受著外界嚴峻(jun)的(de)(de)(de)(de)(de)(de)影(ying)響(xiang)，如除冰鹽或鹽水(shui)。當(dang)后(hou)張(zhang)構件因為防水(shui)層的(de)(de)(de)(de)(de)(de)崩潰(kui)、微裂縫漏水(shui)和排水(shui)設施的(de)(de)(de)(de)(de)(de)堵塞或失效(xiao)時(shi)，預(yu)(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)力(li)(li)(li)筋就會可能(neng)(neng)受到腐(fu)蝕(shi)作用(yong)。。

南京預應力錨具哪家好　　6、電(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)、通(tong)(tong)訊線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)管(guan)(guan)(guan)：在(zai)布電(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)或通(tong)(tong)訊線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)時(shi)(shi)，為了(le)保(bao)(bao)證(zheng)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)路不(bu)會在(zai)安(an)裝過程中損壞(huai)，通(tong)(tong)訊信號不(bu)受(shou)強電(dian)干擾(rao)，能夠長期可(ke)靠耐用，線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)路務必分(fen)(fen)別穿上(shang)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)管(guan)(guan)(guan)　　6.1、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)管(guan)(guan)(guan)穿線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)要(yao)求：電(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)信號線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)不(bu)能穿在(zai)同(tong)一(yi)(yi)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)管(guan)(guan)(guan)內(nei)，須(xu)有(you)300mm以(yi)上(shang)的間隔分(fen)(fen)別單獨穿管(guan)(guan)(guan)；線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)路從分(fen)(fen)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)盒出來接(jie)(jie)到空調設(she)備的電(dian)源(yuan)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)端時(shi)(shi)，需(xu)用塑料(liao)(liao)波紋(wen)管(guan)(guan)(guan)做(zuo)好(hao)(hao)(hao)保(bao)(bao)護，且塑料(liao)(liao)波紋(wen)管(guan)(guan)(guan)與(yu)分(fen)(fen)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)盒連接(jie)(jie)處需(xu)纏上(shang)黑膠布。　　電(dian)源(yuan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)、通(tong)(tong)訊線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)管(guan)(guan)(guan)　　7、PVC冷(leng)凝水(shui)(shui)(shui)排水(shui)(shui)(shui)管(guan)(guan)(guan)：連接(jie)(jie)各室(shi)內(nei)機(ji)的排水(shui)(shui)(shui)口(kou)，及時(shi)(shi)排走室(shi)內(nei)機(ji)制冷(leng)運(yun)行時(shi)(shi)產(chan)生的冷(leng)凝水(shui)(shui)(shui)；冷(leng)凝水(shui)(shui)(shui)排水(shui)(shui)(shui)管(guan)(guan)(guan)必須(xu)套厚度不(bu)小于10mm的保(bao)(bao)溫棉，以(yi)防管(guan)(guan)(guan)路表(biao)(biao)面產(chan)生冷(leng)凝水(shui)(shui)(shui)。　　7.1、好(hao)(hao)(hao)：字(zi)跡清晰，全面，用手搓一(yi)(yi)下，應(ying)該不(bu)會被擦掉。　　7.2、好(hao)(hao)(hao):用火燒一(yi)(yi)下，不(bu)是燒不(bu)著(zhu)，而是火源(yuan)熄滅(mie)，它也就熄滅(mie)。　　7.3、好(hao)(hao)(hao)：管(guan)(guan)(guan)徑規則(ze)，厚度均勻，顏色(se)不(bu)要(yao)偏黃(huang)。　　7.4、安(an)裝要(yao)求：冷(leng)凝水(shui)(shui)(shui)管(guan)(guan)(guan)的吊架間距必須(xu)合(he)理，且有(you)1/100的坡度向(xiang)管(guan)(guan)(guan)路排水(shui)(shui)(shui)口(kou)。　　8、復(fu)合(he)風(feng)管(guan)(guan)(guan)材(cai)(cai)料(liao)(liao)：用于內(nei)機(ji)出回風(feng)的風(feng)管(guan)(guan)(guan)制作，其(qi)具有(you)風(feng)阻力小，保(bao)(bao)溫效(xiao)果(guo)好(hao)(hao)(hao)等特點，有(you)效(xiao)保(bao)(bao)證(zheng)空調運(yun)行效(xiao)果(guo)。　　8.1、根據廠家(jia)提供的材(cai)(cai)料(liao)(liao)密度表(biao)(biao)查看材(cai)(cai)料(liao)(liao)密度，確認質量(liang)(liang)好(hao)(hao)(hao)壞(huai)。　　8.2、看表(biao)(biao)面光潔度，確認質量(liang)(liang)好(hao)(hao)(hao)壞(huai)。　　8.3、敲(qiao)擊復(fu)合(he)材(cai)(cai)料(liao)(liao)，確認質量(liang)(liang)好(hao)(hao)(hao)壞(huai)，敲(qiao)起來聲音比較悅耳，正(zheng)如選瓷磚(zhuan)一(yi)(yi)個(ge)道理。

南京預應力錨具價格在(zai)張拉完(wan)預應(ying)(ying)力(li)筋后，應(ying)(ying)切除外露鋼筋和鋼絞線，控(kong)制(zhi)其(qi)(qi)外露長(chang)度小(xiao)于30mm準(zhun)備(bei)(bei)好施工過(guo)(guo)程(cheng)(cheng)所用(yong)的材料和工具，對(dui)真(zhen)空(kong)(kong)泵、攪漿(jiang)(jiang)(jiang)(jiang)機、壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)泵及附屬配件的性能進行檢查，按(an)順序連(lian)接真(zhen)空(kong)(kong)壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)工藝的施工設(she)備(bei)(bei)。　　　　試抽真(zhen)空(kong)(kong)：打開(kai)真(zhen)空(kong)(kong)閥(fa)，其(qi)(qi)他(ta)閥(fa)門均關(guan)閉，啟動真(zhen)空(kong)(kong)泵，當真(zhen)空(kong)(kong)泵上(shang)壓(ya)(ya)(ya)力(li)表數值(zhi)達到-0.08MPa時，關(guan)閉真(zhen)空(kong)(kong)泵，約1min后觀(guan)察壓(ya)(ya)(ya)力(li)數值(zhi)，若壓(ya)(ya)(ya)力(li)值(zhi)保持(chi)不(bu)變，則(ze)證明管(guan)內已達到真(zhen)空(kong)(kong)狀態(tai)。　　　　水泥漿(jiang)(jiang)(jiang)(jiang)拌(ban)制(zhi)時，將水、水泥、外加劑(ji)等按(an)設(she)計比例稱量，并放入(ru)攪拌(ban)機中(zhong)攪拌(ban)均勻(yun)，將其(qi)(qi)倒入(ru)設(she)有過(guo)(guo)濾網的漿(jiang)(jiang)(jiang)(jiang)罐中(zhong)，準(zhun)備(bei)(bei)壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)。在(zai)壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)過(guo)(guo)程(cheng)(cheng)中(zhong)，真(zhen)空(kong)(kong)泵要持(chi)續工作。　　　　壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)結(jie)束(shu)后，壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)泵還(huan)要繼續工作，觀(guan)察壓(ya)(ya)(ya)力(li)表數值(zhi)，當其(qi)(qi)壓(ya)(ya)(ya)力(li)值(zhi)為0.7MPa時，保持(chi)該壓(ya)(ya)(ya)力(li)值(zhi)2min左右，充分(fen)完(wan)成排氣和泌(mi)水過(guo)(guo)程(cheng)(cheng)，以保證波紋管(guan)內漿(jiang)(jiang)(jiang)(jiang)體密實(shi)和飽滿，此時，壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)結(jie)束(shu)，可關(guan)閉壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)泵和壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)閥(fa)門。　　　　封端混(hun)凝(ning)土(tu)應(ying)(ying)采用(yong)無(wu)收(shou)縮或收(shou)縮性很(hen)小(xiao)的混(hun)凝(ning)土(tu)，按(an)設(she)計配比制(zhi)作，在(zai)壓(ya)(ya)(ya)漿(jiang)(jiang)(jiang)(jiang)結(jie)束(shu)后及時完(wan)成端頭(tou)封端工作。。

PVC接(jie)頭(tou)就(jiu)是(shi)(shi)PVC材(cai)質的接(jie)頭(tou)，這(zhe)個只能是(shi)(shi)PVC材(cai)質的；2、PVC管(guan)(guan)(guan)(guan)(guan)(guan)接(jie)頭(tou)說明(ming)是(shi)(shi)PVC管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)的接(jie)頭(tou)，PVC管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)可以(yi)根據(ju)不同用途而(er)選擇(ze)不同材(cai)質的接(jie)頭(tou)兩者之間(jian)本(ben)(ben)來就(jiu)沒有在一起比較的必要pvc穿(chuan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)規格：一、金(jin)屬(shu)管(guan)(guan)(guan)(guan)(guan)(guan)類(lei)1、普(pu)通(tong)碳素鋼(gang)電線(xian)套(tao)管(guan)(guan)(guan)(guan)(guan)(guan)（電線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)）。2、金(jin)屬(shu)蛇(she)(she)皮管(guan)(guan)(guan)(guan)(guan)(guan)（鍍鋅蛇(she)(she)皮管(guan)(guan)(guan)(guan)(guan)(guan)、包塑(su)金(jin)屬(shu)蛇(she)(she)皮管(guan)(guan)(guan)(guan)(guan)(guan)、不銹鋼(gang)蛇(she)(she)皮管(guan)(guan)(guan)(guan)(guan)(guan)）。二(er)、塑(su)料管(guan)(guan)(guan)(guan)(guan)(guan)類(lei)1、PVC（PVC-U）塑(su)料電線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)（硬管(guan)(guan)(guan)(guan)(guan)(guan)）。2、PE穿(chuan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)（成卷軟管(guan)(guan)(guan)(guan)(guan)(guan)）。3、塑(su)料波(bo)紋管(guan)(guan)(guan)(guan)(guan)(guan)（阻燃波(bo)紋管(guan)(guan)(guan)(guan)(guan)(guan)、線(xian)束套(tao)管(guan)(guan)(guan)(guan)(guan)(guan)、高(gao)(gao)密度(du)波(bo)紋管(guan)(guan)(guan)(guan)(guan)(guan)、耐高(gao)(gao)溫護套(tao)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng)）。三(san)、陶(tao)瓷管(guan)(guan)(guan)(guan)(guan)(guan)類(lei)1、穿(chuan)線(xian)瓷套(tao)管(guan)(guan)(guan)(guan)(guan)(guan)。2、玻璃(li)纖(xian)維編織絕緣(yuan)套(tao)管(guan)(guan)(guan)(guan)(guan)(guan)。版(ban)權聲明(ming)：轉(zhuan)載作(zuo)品(pin)均(jun)注明(ming)出處，本(ben)(ben)網未注明(ming)出處和轉(zhuan)載的，是(shi)(shi)出于傳遞更多信息(xi)之目(mu)的，并不意味著贊同其觀點或(huo)實其內容的真實性。如(ru)轉(zhuan)載作(zuo)品(pin)侵犯(fan)作(zuo)者署名權，或(huo)有其他諸如(ru)版(ban)權、肖(xiao)像(xiang)權、知識產權等(deng)方(fang)面(mian)的傷害，并非本(ben)(ben)網故(gu)意為之，在接(jie)到相關(guan)權利人通(tong)知后將立(li)即加以(yi)更正。。

當(dang)控(kong)制(zhi)應(ying)(ying)(ying)(ying)力(li)(li)(li)取(qu)值(zhi)較大時(shi)，部分鋼(gang)絲已超(chao)過比例極(ji)限，出現(xian)塑(su)性變形(xing)　　多波(bo)曲(qu)(qu)(qu)線預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)由于預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)束(shu)出現(xian)多次反彎，預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)內各根鋼(gang)絞(jiao)線的(de)應(ying)(ying)(ying)(ying)力(li)(li)(li)波(bo)動稍小(xiao)，故實測伸(shen)長(chang)值(zhi)偏(pian)長(chang)的(de)幅度小(xiao)。　　U形(xing)束(shu)采(cai)用塑(su)料波(bo)紋管成孔(kong)，塑(su)料波(bo)紋管成孔(kong)的(de)預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)伸(shen)長(chang)值(zhi)偏(pian)長(chang)，鋼(gang)管成孔(kong)的(de)伸(shen)長(chang)稍小(xiao)，伸(shen)長(chang)值(zhi)與(yu)成孔(kong)材料的(de)關(guan)系有待(dai)進(jin)一步(bu)研究。　　配(pei)有大曲(qu)(qu)(qu)率(lv)預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)的(de)預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)結構在設計(ji)時(shi)，當(dang)預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)的(de)曲(qu)(qu)(qu)率(lv)半(ban)徑小(xiao)于最(zui)小(xiao)曲(qu)(qu)(qu)率(lv)半(ban)徑時(shi)，設計(ji)人員應(ying)(ying)(ying)(ying)適當(dang)降低張(zhang)(zhang)拉(la)控(kong)制(zhi)應(ying)(ying)(ying)(ying)力(li)(li)(li)。U形(xing)束(shu)的(de)張(zhang)(zhang)拉(la)控(kong)制(zhi)應(ying)(ying)(ying)(ying)力(li)(li)(li)宜不大于0.65fptk；多波(bo)曲(qu)(qu)(qu)線預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)，張(zhang)(zhang)拉(la)控(kong)制(zhi)應(ying)(ying)(ying)(ying)力(li)(li)(li)應(ying)(ying)(ying)(ying)大于0.70fptk，并建議施(shi)工中不超(chao)張(zhang)(zhang)拉(la)。　　這種大曲(qu)(qu)(qu)率(lv)預(yu)(yu)應(ying)(ying)(ying)(ying)力(li)(li)(li)筋(jin)的(de)伸(shen)長(chang)值(zhi)不能采(cai)用現(xian)行規范公式計(ji)算。理論伸(shen)長(chang)值(zhi)的(de)計(ji)算方法還(huan)需進(jin)一步(bu)的(de)研究與(yu)探討，現(xian)階段應(ying)(ying)(ying)(ying)采(cai)取(qu)在正(zheng)式張(zhang)(zhang)拉(la)之前(qian)，通過抽樣試驗(yan)來確定伸(shen)長(chang)值(zhi)的(de)控(kong)制(zhi)值(zhi)。　　　。