TPEP鋼管工藝標準！
2020-04-16 13:52:37 點擊：
TPEP防腐(fu)鋼管(guan)(guan)(guan)(guan)(guan)具有良好的(de)(de)(de)(de)(de)(de)(de)可(ke)靠(kao)(kao)性(xing)能(neng)，一(yi)般情況下普通(tong)水(shui)水(shui)管(guan)(guan)(guan)(guan)(guan)道口徑大(da)，一(yi)旦發(fa)生爆管(guan)(guan)(guan)(guan)(guan)或漏(lou)水(shui)事故，浪費(fei)大(da)， 給居(ju)民造成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)影響大(da)，182考(kao)慮管(guan)(guan)(guan)(guan)(guan)材(cai)(cai)質(zhi)(zhi)量(liang)及承壓能(neng)力，及連(lian)接的(de)(de)(de)(de)(de)(de)(de)可(ke)靠(kao)(kao)性(xing)。對自來水(shui)水(shui)質(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)標準已靠(kao)(kao)近國際標準，居(ju)民對供(gong)水(shui)水(shui)質(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)要求也越(yue)來越(yue)高，內涂層(ceng)(ceng)為(wei)飲用(yong)水(shui)級別(bie)的(de)(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)道，防止發(fa)生二(er)次(ci)污(wu)染供(gong)水(shui)管(guan)(guan)(guan)(guan)(guan)網(wang)投入運行費(fei)用(yong)是耗電，線路長，降低管(guan)(guan)(guan)(guan)(guan)網(wang)運行耗能(neng)的(de)(de)(de)(de)(de)(de)(de)因素，優先選用(yong)管(guan)(guan)(guan)(guan)(guan)道粗(cu)糙系數小的(de)(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)材(cai)(cai)。3278管(guan)(guan)(guan)(guan)(guan)道的(de)(de)(de)(de)(de)(de)(de)造價(jia)要從全(quan)周期的(de)(de)(de)(de)(de)(de)(de)角度綜合考(kao)慮，不(bu)僅要考(kao)慮管(guan)(guan)(guan)(guan)(guan)材(cai)(cai)費(fei)用(yong)，還要考(kao)慮管(guan)(guan)(guan)(guan)(guan)材(cai)(cai)的(de)(de)(de)(de)(de)(de)(de)安裝施工，其(qi)后(hou)的(de)(de)(de)(de)(de)(de)(de)運行費(fei)用(yong)以及使用(yong)壽命。因此TPEP防腐(fu)鋼管(guan)(guan)(guan)(guan)(guan)成(cheng)(cheng)為(wei)首選。熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)包復，由于環(huan)(huan)氧(yang)(yang)粉末涂層(ceng)(ceng)、鋼管(guan)(guan)(guan)(guan)(guan)、熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)膠層(ceng)(ceng)和熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)聚(ju)乙烯層(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)膨脹系數不(bu)同，所以，即(ji)使熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)施工質(zhi)(zhi)量(liang)很(hen)(hen)好，也會隨(sui)著管(guan)(guan)(guan)(guan)(guan)道使用(yong)年限的(de)(de)(de)(de)(de)(de)(de)增加，冬夏的(de)(de)(de)(de)(de)(de)(de)交(jiao)替，使熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)和環(huan)(huan)氧(yang)(yang)粉末涂層(ceng)(ceng)產生分離，1756優其(qi)是熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)的(de)(de)(de)(de)(de)(de)(de)邊緣(yuan)處。為(wei)確(que)保補口質(zhi)(zhi)量(liang)，最好采用(yong)三(san)層(ceng)(ceng)結(jie)構熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)，即(ji)在鋼管(guan)(guan)(guan)(guan)(guan)上先涂刷一(yi)層(ceng)(ceng)無(wu)溶劑液(ye)態(tai)環(huan)(huan)氧(yang)(yang)底(di)(di)漆(qi)(qi)，等(deng)底(di)(di)漆(qi)(qi)表干后(hou)再包復熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)。這樣無(wu)溶劑液(ye)態(tai)環(huan)(huan)氧(yang)(yang)底(di)(di)漆(qi)(qi)與鋼管(guan)(guan)(guan)(guan)(guan)和管(guan)(guan)(guan)(guan)(guan)體環(huan)(huan)氧(yang)(yang)粉末層(ceng)(ceng)有很(hen)(hen)好的(de)(de)(de)(de)(de)(de)(de)粘結(jie)力，與熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)也有較(jiao)(jiao)好的(de)(de)(de)(de)(de)(de)(de)粘結(jie)力。采用(yong)三(san)層(ceng)(ceng)結(jie)構熱(re)(re)收(shou)(shou)縮(suo)套(tao)(tao)補口，質(zhi)(zhi)量(liang)容易保證，但施工工藝較(jiao)(jiao)復雜，造價(jia)較(jiao)(jiao)高。TPEP防腐(fu)(fu)鋼(gang)(gang)(gang)管(guan)腐(fu)(fu)蝕(shi)產生(sheng)(sheng)的(de)機理(li)：金(jin)屬(shu)被腐(fu)(fu)蝕(shi)是由(you)于(yu)電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)的(de)不同，金(jin)屬(shu)發生(sheng)(sheng)電(dian)(dian)(dian)化(hua)(hua)學反(fan)應(ying)時，電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)較低的(de)部位(wei)(wei)容易失去電(dian)(dian)(dian)子(zi)，182形成(cheng)(cheng)(cheng)陽極(ji);電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)較高的(de)部位(wei)(wei)得(de)到電(dian)(dian)(dian)子(zi)，成(cheng)(cheng)(cheng)為(wei)陰(yin)極(ji)。在O2和(he)H2O存在的(de)情況下(xia)，Fe(OH)2生(sheng)(sheng)成(cheng)(cheng)(cheng)水(shui)(shui)合(he)(he)氧化(hua)(hua)鐵（俗稱之鐵銹），它是一種疏(shu)松物質，浮(fu)在鋼(gang)(gang)(gang)鐵表面，無(wu)保(bao)護作(zuo)用，金(jin)屬(shu)的(de)陽極(ji)化(hua)(hua)反(fan)應(ying)可繼續進，即產生(sheng)(sheng)腐(fu)(fu)蝕(shi)持續發展，使(shi)油(you)氣管(guan)道(dao)表面出(chu)現凹穴，甚至穿孔。3278TPEP防腐(fu)(fu)鋼(gang)(gang)(gang)管(guan)采用雙組分常溫(wen)(wen)固化(hua)(hua)型的(de)涂料，在鋼(gang)(gang)(gang)管(guan)表面上由(you)玻(bo)璃(li)(li)布(bu)(bu)(bu)作(zuo)為(wei)加強(qiang)(qiang)涂敷(fu)而成(cheng)(cheng)(cheng)的(de)防腐(fu)(fu)。可用于(yu)埋地或(huo)水(shui)(shui)下(xia)的(de)輸油(you)、輸氣、輸水(shui)(shui)、熱力管(guan)道(dao)的(de)外(wai)壁(bi)(bi)防腐(fu)(fu)，也(ye)適用于(yu)各類鋼(gang)(gang)(gang)結構、碼頭(tou)、船舶(bo)、水(shui)(shui)閘、煤氣儲罐、煉油(you)化(hua)(hua)工(gong)廠設備防腐(fu)(fu)及污水(shui)(shui)池、樓(lou)頂(ding)防水(shui)(shui)層、地下(xia)室混凝土(tu)層的(de)防滲漏。在管(guan)道(dao)外(wai)壁(bi)(bi)涂刷中，與玻(bo)璃(li)(li)纖維(wei)布(bu)(bu)(bu)包扎配套使(shi)用，成(cheng)(cheng)(cheng)為(wei)加強(qiang)(qiang)級(ji)或(huo)特(te)加強(qiang)(qiang)級(ji)涂層，防腐(fu)(fu)性(xing)(xing)能優(you)(you)異。1756三布(bu)(bu)(bu)四油(you)防腐(fu)(fu)鋼(gang)(gang)(gang)管(guan)是由(you)涂料與玻(bo)璃(li)(li)纖維(wei)布(bu)(bu)(bu)復合(he)(he)使(shi)用，這樣使(shi)用可增強(qiang)(qiang)防腐(fu)(fu)層的(de)機械性(xing)(xing)能。三布(bu)(bu)(bu)四油(you)具(ju)有(you)優(you)(you)異的(de)電(dian)(dian)(dian)絕緣(yuan)性(xing)(xing)、抗水(shui)(shui)滲透性(xing)(xing)、抗微生(sheng)(sheng)物侵蝕(shi)、抗雜散電(dian)(dian)(dian)流、耐熱、耐溫(wen)(wen)差驟變等優(you)(you)良性(xing)(xing)能。
TPEP防腐鋼(gang)管采用雙組分常溫固化型的涂料，在鋼(gang)管表面(mian)上由玻璃布作為加強涂敷而(er)成的防腐。可用(yong)于(yu)埋地(di)或水下(xia)的(de)輸油(you)、輸氣、輸水、熱力管道(dao)的(de)外壁防(fang)腐，也適用(yong)于(yu)各(ge)類鋼(gang)結構(gou)、碼(ma)頭、船舶、水閘、煤氣儲罐(guan)、煉油(you)化工廠設備防(fang)腐及污水池、樓頂防(fang)水層、地(di)下(xia)室混凝土層的(de)防(fang)滲漏。在管道(dao)外壁(bi)涂刷中，與玻璃纖維布包扎(zha)配套使用，成為(wei)加強級(ji)(ji)或特加強級(ji)(ji)涂層，防腐性能優(you)異。三(san)布四(si)油防腐鋼管是由涂料與玻璃纖維布復合使用，這樣使用可增(zeng)強防腐層的(de)機械性能。三布四油具有優異的電絕緣性(xing)、抗水滲透性(xing)、抗微(wei)生物侵蝕、抗雜散電流、耐(nai)(nai)熱、耐(nai)(nai)溫差驟變(bian)等優良(liang)性(xing)能(neng)。TPTP防腐鋼(gang)管底(di)層(ceng)是環(huan)氧樹脂、中間(jian)層(ceng)膠黏劑、外層(ceng)聚乙烯形(xing)成的三層(ceng)結(jie)構(gou)為一體(ti)的防腐層(ceng)，內壁采用(yong)熱噴涂(tu)環(huan)氧粉(fen)末防腐，粉(fen)末經高溫加(jia)熱熔結(jie)涂(tu)敷在管體(ti)表面上，形(xing)成鋼(gang)塑合(he)金層(ceng)。熔結(jie)(jie)環(huan)(huan)氧(yang)(yang)粉(fen)(fen)末(mo)鋼管分為兩種（單(dan)層(ceng)(ceng)(ceng)和雙(shuang)層(ceng)(ceng)(ceng)），相比較(jiao)而(er)言(yan)雙(shuang)層(ceng)(ceng)(ceng)環(huan)(huan)氧(yang)(yang)粉(fen)(fen)末(mo)是(shi)最為理想的防腐(fu)層(ceng)(ceng)(ceng)，施工原(yuan)理是(shi)指采用單(dan)層(ceng)(ceng)(ceng)熔結(jie)(jie)環(huan)(huan)氧(yang)(yang)粉(fen)(fen)末(mo)作(zuo)為底(di)涂(tu)層(ceng)(ceng)(ceng)，采用改(gai)性熔結(jie)(jie)環(huan)(huan)氧(yang)(yang)粉(fen)(fen)末(mo)作(zuo)為外防護層(ceng)(ceng)(ceng)，使(shi)防腐(fu)層(ceng)(ceng)(ceng)性能顯(xian)著提(ti)升，達(da)到(dao)了(le)高(gao)溫抗(kang)滲(shen)透性、耐高(gao)溫性能和抗(kang)沖擊力的要求，保(bao)留了(le)單(dan)層(ceng)(ceng)(ceng)熔結(jie)(jie)環(huan)(huan)氧(yang)(yang)粉(fen)(fen)末(mo)防腐(fu)層(ceng)(ceng)(ceng)與(yu)陰極保(bao)護的相容(rong)性能。
TPEP防(fang)(fang)腐(fu)鋼管(guan)外(wai)壁采用(yong)(yong)熱(re)熔(rong)(rong)(rong)結(jie)(jie)纏繞(rao)工(gong)藝底層(ceng)(ceng)(ceng)(ceng)(ceng)環(huan)氧(yang)樹脂、中間層(ceng)(ceng)(ceng)(ceng)(ceng)膠黏劑(ji)(ji)、外(wai)層(ceng)(ceng)(ceng)(ceng)(ceng)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)形(xing)成三(san)層(ceng)(ceng)(ceng)(ceng)(ceng)結(jie)(jie)構的(de)(de)防(fang)(fang)腐(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)，內壁采用(yong)(yong)熱(re)噴涂(tu)環(huan)氧(yang)粉(fen)(fen)末(mo)防(fang)(fang)腐(fu)方式，182將粉(fen)(fen)末(mo)經高溫(wen)加(jia)熱(re)熔(rong)(rong)(rong)結(jie)(jie)后均勻地(di)涂(tu)敷在(zai)(zai)管(guan)體(ti)表面(mian)上，極(ji)大提高了(le)涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)附著力(li)及涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)厚(hou)度，施工(gong)時(shi)管(guan)身(shen)應置于(yu)(yu)較好的(de)(de)地(di)基上，沿管(guan)線每10～20m設(she)置伸(shen)縮縫(feng),防(fang)(fang)滲結(jie)(jie)構在(zai)(zai)與(yu)管(guan)道(dao)接(jie)(jie)合(he)處要(yao)適當加(jia)厚(hou),管(guan)外(wai)回(hui)填1～2m厚(hou)的(de)(de)不(bu)透(tou)水土(tu)料(liao)，以防(fang)(fang)止由于(yu)(yu)溫(wen)度變化(hua)和(he)地(di)基不(bu)均勻沉降導致(zhi)管(guan)身(shen)斷裂或產生(sheng)(sheng)裂縫(feng)及在(zai)(zai)管(guan)身(shen)與(yu)壩體(ti)之間產生(sheng)(sheng)集中滲流等(deng)缺陷。三(san)層(ceng)(ceng)(ceng)(ceng)(ceng)TPEP涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)越性(xing)(xing)能(neng)(neng)主要(yao)是由于(yu)(yu)它將底層(ceng)(ceng)(ceng)(ceng)(ceng)環(huan)氧(yang)粉(fen)(fen)末(mo)、3278中間層(ceng)(ceng)(ceng)(ceng)(ceng)粘(zhan)接(jie)(jie)劑(ji)(ji)和(he)外(wai)層(ceng)(ceng)(ceng)(ceng)(ceng)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)有機地(di)結(jie)(jie)合(he)成了(le)一個(ge)(ge)整體(ti)，從而使該(gai)涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)具有熔(rong)(rong)(rong)結(jie)(jie)環(huan)氧(yang)粉(fen)(fen)末(mo)(FBE)涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)和(he)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)優點。熔(rong)(rong)(rong)結(jie)(jie)環(huan)氧(yang)通(tong)過(guo)其活性(xing)(xing)基團與(yu)鋼管(guan)表面(mian)活化(hua)離(li)子(zi)作用(yong)(yong)形(xing)成離(li)子(zi)鍵以及物(wu)理嵌合(he)力(li)，使之牢(lao)固粘(zhan)附在(zai)(zai)金屬基體(ti)表面(mian)。由聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)改(gai)性(xing)(xing)制得(de)共(gong)聚(ju)(ju)(ju)物(wu)粘(zhan)接(jie)(jie)劑(ji)(ji)，不(bu)僅(jin)具有與(yu)熔(rong)(rong)(rong)結(jie)(jie)環(huan)氧(yang)經化(hua)學反應形(xing)成共(gong)價鍵（酯鍵）的(de)(de)能(neng)(neng)力(li)，而且通(tong)過(guo)接(jie)(jie)枝改(gai)性(xing)(xing)，破壞(huai)了(le)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)材(cai)料(liao)的(de)(de)電子(zi)偶極(ji)平衡，1756使熔(rong)(rong)(rong)結(jie)(jie)環(huan)氧(yang)與(yu)共(gong)聚(ju)(ju)(ju)物(wu)分(fen)(fen)子(zi)間范德華力(li)增(zeng)強(qiang)，有效提高了(le)兩者界面(mian)間粘(zhan)接(jie)(jie)強(qiang)度。且同(tong)時(shi)并(bing)未(wei)改(gai)變中間層(ceng)(ceng)(ceng)(ceng)(ceng)粘(zhan)接(jie)(jie)劑(ji)(ji)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)的(de)(de)加(jia)工(gong)性(xing)(xing)征(zheng)，在(zai)(zai)達到成型溫(wen)度時(shi)，熔(rong)(rong)(rong)融的(de)(de)中間層(ceng)(ceng)(ceng)(ceng)(ceng)粘(zhan)接(jie)(jie)劑(ji)(ji)和(he)外(wai)層(ceng)(ceng)(ceng)(ceng)(ceng)聚(ju)(ju)(ju)乙(yi)(yi)烯(xi)(xi)(xi)在(zai)(zai)一定的(de)(de)外(wai)加(jia)壓力(li)下分(fen)(fen)子(zi)間會相互滲透(tou)、相互纏繞(rao)，冷(leng)卻時(shi)結(jie)(jie)晶(jing)、硬(ying)化(hua)，而且兩者的(de)(de)分(fen)(fen)子(zi)能(neng)(neng)夠共(gong)結(jie)(jie)晶(jing)，因此兩層(ceng)(ceng)(ceng)(ceng)(ceng)間能(neng)(neng)夠完全結(jie)(jie)合(he)成一體(ti)，不(bu)會有分(fen)(fen)離(li)的(de)(de)界面(mian)，使三(san)種(zhong)材(cai)料(liao)結(jie)(jie)合(he)形(xing)成一個(ge)(ge)完整的(de)(de)防(fang)(fang)腐(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)。
TPTP防(fang)(fang)腐(fu)(fu)鋼(gang)管(guan)(guan)(guan)(guan)底(di)(di)層(ceng)(ceng)(ceng)(ceng)(ceng)是(shi)(shi)環氧(yang)樹脂、中間層(ceng)(ceng)(ceng)(ceng)(ceng)膠(jiao)黏劑、外層(ceng)(ceng)(ceng)(ceng)(ceng)聚(ju)乙烯形成(cheng)的(de)(de)(de)(de)三層(ceng)(ceng)(ceng)(ceng)(ceng)結構(gou)為(wei)(wei)一體的(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)，內壁采(cai)(cai)(cai)用(yong)熱(re)(re)(re)噴(pen)涂(tu)環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)防(fang)(fang)腐(fu)(fu)，粉(fen)末(mo)(mo)(mo)(mo)經高溫(wen)(wen)加熱(re)(re)(re)熔(rong)結涂(tu)敷在(zai)管(guan)(guan)(guan)(guan)體表面上，形成(cheng)鋼(gang)塑合(he)金層(ceng)(ceng)(ceng)(ceng)(ceng)。熔(rong)結環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)鋼(gang)管(guan)(guan)(guan)(guan)分為(wei)(wei)兩(liang)種(zhong)（單(dan)層(ceng)(ceng)(ceng)(ceng)(ceng)和雙層(ceng)(ceng)(ceng)(ceng)(ceng)），相比較而言雙層(ceng)(ceng)(ceng)(ceng)(ceng)環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)是(shi)(shi)最為(wei)(wei)理想的(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)，施工原理是(shi)(shi)指采(cai)(cai)(cai)用(yong)單(dan)層(ceng)(ceng)(ceng)(ceng)(ceng)熔(rong)結環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)作為(wei)(wei)底(di)(di)涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)，采(cai)(cai)(cai)用(yong)改性熔(rong)結環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)作為(wei)(wei)外防(fang)(fang)護層(ceng)(ceng)(ceng)(ceng)(ceng)，使防(fang)(fang)腐(fu)(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)性能顯(xian)著(zhu)提升，達到了高溫(wen)(wen)抗滲透性、耐高溫(wen)(wen)性能和抗沖(chong)擊(ji)力的(de)(de)(de)(de)要求，保留了單(dan)層(ceng)(ceng)(ceng)(ceng)(ceng)熔(rong)結環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)防(fang)(fang)腐(fu)(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)與陰極保護的(de)(de)(de)(de)相容性能。tpep防(fang)(fang)腐(fu)(fu)鋼(gang)管(guan)(guan)(guan)(guan)外壁采(cai)(cai)(cai)用(yong)熱(re)(re)(re)熔(rong)結纏繞工藝底(di)(di)層(ceng)(ceng)(ceng)(ceng)(ceng)環氧(yang)樹脂、中間層(ceng)(ceng)(ceng)(ceng)(ceng)膠(jiao)黏劑、外層(ceng)(ceng)(ceng)(ceng)(ceng)聚(ju)乙烯形成(cheng)三層(ceng)(ceng)(ceng)(ceng)(ceng)結構(gou)的(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)層(ceng)(ceng)(ceng)(ceng)(ceng)，內壁采(cai)(cai)(cai)用(yong)熱(re)(re)(re)噴(pen)涂(tu)環氧(yang)粉(fen)末(mo)(mo)(mo)(mo)防(fang)(fang)腐(fu)(fu)方式(shi)，將(jiang)粉(fen)末(mo)(mo)(mo)(mo)經高溫(wen)(wen)加熱(re)(re)(re)熔(rong)結后均(jun)勻地涂(tu)敷在(zai)管(guan)(guan)(guan)(guan)體表面上，極大提高了涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)附(fu)著(zhu)力及涂(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)厚度(du)，施工時管(guan)(guan)(guan)(guan)身應置于(yu)較好的(de)(de)(de)(de)地基(ji)上，沿管(guan)(guan)(guan)(guan)線(xian)每10～20m設(she)置伸縮縫(feng),防(fang)(fang)滲結構(gou)在(zai)與管(guan)(guan)(guan)(guan)道接合(he)處要適(shi)當(dang)加厚,管(guan)(guan)(guan)(guan)外回填1～2m厚的(de)(de)(de)(de)不透水土料，以防(fang)(fang)止(zhi)由于(yu)溫(wen)(wen)度(du)變化和地基(ji)不均(jun)勻沉降導致(zhi)管(guan)(guan)(guan)(guan)身斷裂或(huo)產生(sheng)裂縫(feng)及在(zai)管(guan)(guan)(guan)(guan)身與壩體之間產生(sheng)集中滲流(liu)等缺(que)陷。
TPEP防(fang)(fang)(fang)腐(fu)鋼(gang)管一定(ding)(ding)要在(zai)(zai)底漆尚濕(shi)潤時安裝(zhuang)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)，不得在(zai)(zai)加(jia)熱(re)(re)(re)(re)(re)(re)已涂好(hao)的(de)(de)(de)(de)(de)底漆。再(zai)將(jiang)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)的(de)(de)(de)(de)(de)另一端(duan)內層(ceng)熱(re)(re)(re)(re)(re)(re)熔(rong)膠烤軟(ruan)(ruan)、發(fa)亮，沿(yan)鋼(gang)管周向(xiang)(xiang)(xiang)繞至(zhi)(zhi)搭(da)接線，并將(jiang)搭(da)接線以前基(ji)材表面加(jia)熱(re)(re)(re)(re)(re)(re)后(hou)，對準粘貼，用(yong)手拍(pai)打壓緊(jin)。固(gu)(gu)(gu)定(ding)(ding)片(pian)(pian)的(de)(de)(de)(de)(de)安裝(zhuang)：將(jiang)固(gu)(gu)(gu)定(ding)(ding)片(pian)(pian)內層(ceng)加(jia)熱(re)(re)(re)(re)(re)(re)數秒鐘使乳白膠層(ceng)發(fa)亮。沿(yan)軸向(xiang)(xiang)(xiang)對折定(ding)(ding)位于熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)接縫處，然后(hou)掀起(qi)固(gu)(gu)(gu)定(ding)(ding)片(pian)(pian)的(de)(de)(de)(de)(de)一邊(bian)(bian)，用(yong)火加(jia)熱(re)(re)(re)(re)(re)(re)固(gu)(gu)(gu)定(ding)(ding)片(pian)(pian)的(de)(de)(de)(de)(de)內層(ceng)，使乳白膠層(ceng)發(fa)亮變軟(ruan)(ruan)，然后(hou)迅(xun)速壓緊(jin)壓實。再(zai)用(yong)同樣(yang)(yang)的(de)(de)(de)(de)(de)方(fang)(fang)法(fa)(fa)安裝(zhuang)另一邊(bian)(bian)，最(zui)后(hou)將(jiang)固(gu)(gu)(gu)定(ding)(ding)片(pian)(pian)上方(fang)(fang)往返加(jia)熱(re)(re)(re)(re)(re)(re)數次輥(gun)壓，一定(ding)(ding)要粘接牢固(gu)(gu)(gu)，網格清晰可見.在(zai)(zai)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)兩端(duan)襯(chen)上木(mu)襯(chen)后(hou)，從中間沿(yan)周向(xiang)(xiang)(xiang)向(xiang)(xiang)(xiang)兩側均勻加(jia)熱(re)(re)(re)(re)(re)(re)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)，收(shou)(shou)縮(suo)(suo)至(zhi)(zhi)端(duan)部。用(yong)同樣(yang)(yang)的(de)(de)(de)(de)(de)方(fang)(fang)法(fa)(fa)加(jia)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)至(zhi)(zhi)另一端(duan)。當(dang)加(jia)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)至(zhi)(zhi)坡口(kou)處時，取出木(mu)襯(chen)。繼續加(jia)熱(re)(re)(re)(re)(re)(re)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)，直至(zhi)(zhi)端(duan)部收(shou)(shou)縮(suo)(suo)緊(jin)密。當(dang)熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)收(shou)(shou)縮(suo)(suo)到邊(bian)(bian)緣(yuan)時，火焰應(ying)覆蓋熱(re)(re)(re)(re)(re)(re)收(shou)(shou)縮(suo)(suo)帶(dai)(dai)的(de)(de)(de)(de)(de)邊(bian)(bian)緣(yuan)多加(jia)熱(re)(re)(re)(re)(re)(re)數秒，使之收(shou)(shou)縮(suo)(suo)緊(jin)密，防(fang)(fang)(fang)止(zhi)收(shou)(shou)火后(hou)產生(sheng)翹邊(bian)(bian)。外(wai)3PE內熔(rong)結(jie)環(huan)氧復合(he)鋼(gang)管（又稱TPEP防(fang)(fang)(fang)腐(fu)管道）是在(zai)(zai)外(wai)聚乙(yi)烯(xi)內熔(rong)結(jie)環(huan)氧復合(he)鋼(gang)管的(de)(de)(de)(de)(de)基(ji)礎上升級換代(dai)產品，是目前埋(mai)地(di)(di)長輸管線最(zui)zui先進的(de)(de)(de)(de)(de)防(fang)(fang)(fang)腐(fu)形(xing)(xing)式(shi)。自(zi)主(zhu)開發(fa)的(de)(de)(de)(de)(de)第(di)四代(dai)大口(kou)徑管道新型防(fang)(fang)(fang)腐(fu)生(sheng)產線，外(wai)壁采(cai)用(yong)熱(re)(re)(re)(re)(re)(re)熔(rong)結(jie)纏繞工(gong)藝底層(ceng)環(huan)氧樹脂、中間層(ceng)膠黏(nian)劑(ji)、外(wai)層(ceng)聚乙(yi)烯(xi)形(xing)(xing)成三層(ceng)結(jie)構的(de)(de)(de)(de)(de)防(fang)(fang)(fang)腐(fu)層(ceng)，內壁采(cai)用(yong)熱(re)(re)(re)(re)(re)(re)噴涂環(huan)氧粉(fen)末防(fang)(fang)(fang)腐(fu)方(fang)(fang)式(shi)，將(jiang)粉(fen)末經高溫(wen)加(jia)熱(re)(re)(re)(re)(re)(re)熔(rong)結(jie)后(hou)均勻地(di)(di)涂敷(fu)在(zai)(zai)管體表面上。
TPEP是(shi)(shi)一(yi)種防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)結(jie)(jie)構,是(shi)(shi)最(zui)新(xin)一(yi)代應(ying)用(yong)(yong)(yong)(yong)于(yu)長(chang)(chang)距離輸(shu)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)的(de)(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)形(xing)式(shi),與傳統輸(shu)送管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)對比,具有諸多優勢特點(dian),管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)外(wai)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)為3PE,管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)內(nei)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)為熔結(jie)(jie)環(huan)(huan)氧(yang)粉(fen)末(mo),管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)內(nei)壁(bi)(bi)的(de)(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)標準(zhun)(zhun)達(da)到了(le)食品級.滄(cang)州(zhou)廣匯管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)生(sheng)(sheng)產的(de)(de)(de)(de)(de)TPEP防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)工(gong)程(cheng)(cheng)按(an)照國家標準(zhun)(zhun)施工(gong)可(ke)以(yi)埋地(di)(di)使(shi)用(yong)(yong)(yong)(yong)50年(nian)保證(zheng)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)正常使(shi)用(yong)(yong)(yong)(yong)。TPEP防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)--外(wai)3PE內(nei)熔結(jie)(jie)環(huan)(huan)氧(yang)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)在(zai)(zai)外(wai)單層(ceng)(ceng)(ceng)(ceng)聚乙烯內(nei)環(huan)(huan)氧(yang)復合(he)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)基礎(chu)上(shang)(shang)升級換(huan)代產品，是(shi)(shi)目前埋地(di)(di)長(chang)(chang)輸(shu)管(guan)(guan)(guan)(guan)(guan)(guan)線最(zui)先進(jin)的(de)(de)(de)(de)(de)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)形(xing)式(shi)。是(shi)(shi)滄(cang)州(zhou)廣匯管(guan)(guan)(guan)(guan)(guan)(guan)業有限公司自主開(kai)發(fa)(fa)的(de)(de)(de)(de)(de)第四代大(da)(da)口徑管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)新(xin)型防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)生(sheng)(sheng)產線，外(wai)壁(bi)(bi)采(cai)用(yong)(yong)(yong)(yong)熱熔結(jie)(jie)纏繞工(gong)藝底層(ceng)(ceng)(ceng)(ceng)環(huan)(huan)氧(yang)樹脂、中間層(ceng)(ceng)(ceng)(ceng)膠黏劑、外(wai)層(ceng)(ceng)(ceng)(ceng)聚乙烯形(xing)成三層(ceng)(ceng)(ceng)(ceng)結(jie)(jie)構的(de)(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)層(ceng)(ceng)(ceng)(ceng)，內(nei)壁(bi)(bi)采(cai)用(yong)(yong)(yong)(yong)熱噴涂(tu)環(huan)(huan)氧(yang)粉(fen)末(mo)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)方式(shi)，將粉(fen)末(mo)經(jing)高溫加(jia)熱熔結(jie)(jie)后均(jun)勻地(di)(di)涂(tu)敷在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)(guan)體表(biao)面上(shang)(shang)，形(xing)成鋼(gang)(gang)塑合(he)金層(ceng)(ceng)(ceng)(ceng)，簡稱TPEP鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，。極大(da)(da)提高了(le)涂(tu)層(ceng)(ceng)(ceng)(ceng)附著力及涂(tu)層(ceng)(ceng)(ceng)(ceng)厚度(du)(du)，增(zeng)強(qiang)了(le)耐(nai)(nai)磕碰，耐(nai)(nai)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)能(neng)力。該(gai)產品于(yu)2009年(nian)獲取國家實(shi)(shi)用(yong)(yong)(yong)(yong)新(xin)型專利。2010年(nian)獲得國家火炬項目。TPEP鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)填補了(le)國內(nei)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)最(zui)佳防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)的(de)(de)(de)(de)(de)空白，價格與單層(ceng)(ceng)(ceng)(ceng)聚乙烯內(nei)熔結(jie)(jie)環(huan)(huan)氧(yang)復合(he)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)相(xiang)差無幾(ji)，耐(nai)(nai)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)能(neng)力提高了(le)3-5倍。TPEP防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)該(gai)涂(tu)層(ceng)(ceng)(ceng)(ceng)還可(ke)根(gen)據需要進(jin)行機械加(jia)工(gong)，并可(ke)以(yi)用(yong)(yong)(yong)(yong)在(zai)(zai)動(dong)態部(bu)件(jian)上(shang)(shang)，增(zeng)強(qiang)部(bu)件(jian)的(de)(de)(de)(de)(de)耐(nai)(nai)磨、耐(nai)(nai)氣(qi)(qi)蝕(shi)(shi)(shi)(shi)、耐(nai)(nai)沖刷性能(neng)，提高部(bu)件(jian)在(zai)(zai)苛刻環(huan)(huan)境(jing)下的(de)(de)(de)(de)(de)使(shi)用(yong)(yong)(yong)(yong)壽(shou)命經(jing)過實(shi)(shi)際應(ying)用(yong)(yong)(yong)(yong)考(kao)核(he)和(he)檢驗，重(zhong)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)防(fang)(fang)護(hu)(hu)技(ji)術日臻成熟，解決了(le)許多其它防(fang)(fang)護(hu)(hu)技(ji)術未(wei)能(neng)解決腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)問(wen)題，為國民經(jing)濟(ji)可(ke)持續發(fa)(fa)展做出(chu)了(le)重(zhong)要貢(gong)獻，可(ke)在(zai)(zai)以(yi)下領域廣泛(fan)應(ying)用(yong)(yong)(yong)(yong)：長(chang)(chang)距離輸(shu)運油、水(shui)、氣(qi)(qi)等埋地(di)(di)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)防(fang)(fang)護(hu)(hu)；輸(shu)酸、堿、鹽和(he)灰渣等腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)介質(zhi)的(de)(de)(de)(de)(de)工(gong)藝管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)和(he)異型件(jian)的(de)(de)(de)(de)(de)防(fang)(fang)護(hu)(hu)；泵、閥、風機等設備(bei)的(de)(de)(de)(de)(de)重(zhong)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)防(fang)(fang)護(hu)(hu)；供熱和(he)輸(shu)海(hai)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)波紋管(guan)(guan)(guan)(guan)(guan)(guan)補償器的(de)(de)(de)(de)(de)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)防(fang)(fang)護(hu)(hu)；海(hai)洋(yang)工(gong)程(cheng)(cheng)及碼頭鋼(gang)(gang)結(jie)(jie)構件(jian)的(de)(de)(de)(de)(de)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)；電解銅行業種板邊緣包覆(fu)；設備(bei)及管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)損傷件(jian)的(de)(de)(de)(de)(de)修復；長(chang)(chang)輸(shu)埋地(di)(di)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)補口。目前它已在(zai)(zai)“西氣(qi)(qi)東輸(shu)”管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)彎管(guan)(guan)(guan)(guan)(guan)(guan)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)工(gong)程(cheng)(cheng)、上(shang)(shang)海(hai)浦(pu)東天然氣(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)防(fang)(fang)腐(fu)(fu)(fu)(fu)(fu)工(gong)程(cheng)(cheng)、秦(qin)山核(he)電站海(hai)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)、海(hai)軍(jun)艦艇海(hai)水(shui)閥門(men)重(zhong)點(dian)工(gong)程(cheng)(cheng)中得到應(ying)用(yong)(yong)(yong)(yong)。專家認為該(gai)系列涂(tu)料應(ying)用(yong)(yong)(yong)(yong)廣泛(fan)，使(shi)用(yong)(yong)(yong)(yong)效果好(hao)、壽(shou)命長(chang)(chang)、使(shi)用(yong)(yong)(yong)(yong)無環(huan)(huan)境(jing)污染，在(zai)(zai)相(xiang)關行業推廣使(shi)用(yong)(yong)(yong)(yong)將大(da)(da)幅度(du)(du)降低(di)由于(yu)腐(fu)(fu)(fu)(fu)(fu)蝕(shi)(shi)(shi)(shi)引起的(de)(de)(de)(de)(de)經(jing)濟(ji)損失，必(bi)將產生(sheng)(sheng)顯著的(de)(de)(de)(de)(de)經(jing)濟(ji)效益和(he)社會效益。
TPEP防(fang)(fang)(fang)腐(fu)鋼(gang)管(guan)(guan)(guan)(guan)(guan)母(mu)材(cai)包括螺旋(xuan)管(guan)(guan)(guan)(guan)(guan)，直縫管(guan)(guan)(guan)(guan)(guan)，無縫管(guan)(guan)(guan)(guan)(guan)等，在(zai)我國(guo)廣泛應用(yong)于石油、化(hua)(hua)工、天然氣、熱(re)力、污水(shui)處理、水(shui)源(yuan)、橋梁、鋼(gang)結構，海洋輸(shu)水(shui)打(da)樁等管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)工程領域。管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)在(zai)不同的(de)(de)(de)(de)工作環境中(zhong)使(shi)用(yong)，為(wei)減(jian)緩或防(fang)(fang)(fang)止管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)在(zai)外(wai)(wai)(wai)介質的(de)(de)(de)(de)化(hua)(hua)學(xue)、電化(hua)(hua)學(xue)作用(yong)下或由(you)(you)微生(sheng)物的(de)(de)(de)(de)代謝活動而被侵蝕和變質在(zai)其外(wai)(wai)(wai)壁上涂(tu)(tu)(tu)(tu)2層或3層聚乙烯以達到管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)防(fang)(fang)(fang)腐(fu)，3pe防(fang)(fang)(fang)腐(fu)管(guan)(guan)(guan)(guan)(guan)使(shi)用(yong)壽命(ming)延長(chang)3-5倍(bei)。3PE防(fang)(fang)(fang)腐(fu)鋼(gang)管(guan)(guan)(guan)(guan)(guan)是(shi)指3層結構聚烯烴涂(tu)(tu)(tu)(tu)層外(wai)(wai)(wai)防(fang)(fang)(fang)腐(fu)鋼(gang)管(guan)(guan)(guan)(guan)(guan)，是(shi)國(guo)內常用(yong)的(de)(de)(de)(de)一(yi)種防(fang)(fang)(fang)腐(fu)管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)(dao)(dao)。一(yi)般指的(de)(de)(de)(de)是(shi)鋼(gang)管(guan)(guan)(guan)(guan)(guan)外(wai)(wai)(wai)壁防(fang)(fang)(fang)腐(fu)。實(shi)際操作中(zhong)將三種材(cai)料混合融為(wei)一(yi)體(ti)，經(jing)過(guo)加(jia)工使(shi)之與鋼(gang)管(guan)(guan)(guan)(guan)(guan)牢(lao)固結合形成優良的(de)(de)(de)(de)防(fang)(fang)(fang)腐(fu)層。其加(jia)工方(fang)式(shi)一(yi)般分(fen)纏繞式(shi)和圓模包覆式(shi)兩種。九十(shi)(shi)年代后(hou)期，在(zai)國(guo)內最早由(you)(you)北(bei)京波羅努(nu)斯(si)涂(tu)(tu)(tu)(tu)裝(zhuang)設備有(you)(you)限(xian)(xian)公(gong)司會(hui)同北(bei)京鋼(gang)鐵設計研(yan)究總(zong)院的(de)(de)(de)(de)有(you)(you)關專家分(fen)析了鋼(gang)管(guan)(guan)(guan)(guan)(guan)涂(tu)(tu)(tu)(tu)裝(zhuang)的(de)(de)(de)(de)擦(ca)傷問題。當時(shi)的(de)(de)(de)(de)擦(ca)傷主要(yao)表現(xian)為(wei)鋼(gang)管(guan)(guan)(guan)(guan)(guan)表面(mian)寬40毫米兩條(tiao)縱(zong)向(xiang)全長(chang)的(de)(de)(de)(de)擦(ca)傷。針對當時(shi)引(yin)進(jin)國(guo)外(wai)(wai)(wai)的(de)(de)(de)(de)鋼(gang)管(guan)(guan)(guan)(guan)(guan)涂(tu)(tu)(tu)(tu)裝(zhuang)生(sheng)產(chan)線采用(yong)涂(tu)(tu)(tu)(tu)裝(zhuang)前(qian)后(hou)輥(gun)(gun)道(dao)(dao)(dao)(dao)(dao)輸(shu)送，而且淋涂(tu)(tu)(tu)(tu)箱中(zhong)部(bu)也安裝(zhuang)輥(gun)(gun)道(dao)(dao)(dao)(dao)(dao)的(de)(de)(de)(de)設計，雙方(fang)提出涂(tu)(tu)(tu)(tu)裝(zhuang)前(qian)部(bu)輥(gun)(gun)道(dao)(dao)(dao)(dao)(dao)后(hou)部(bu)采用(yong)同步鏈條(tiao)輸(shu)送的(de)(de)(de)(de)傳輸(shu)方(fang)式(shi)進(jin)行無氣噴涂(tu)(tu)(tu)(tu)的(de)(de)(de)(de)技(ji)術方(fang)案(an)。這(zhe)一(yi)方(fang)案(an)在(zai)二十(shi)(shi)一(yi)世紀初，由(you)(you)北(bei)京波羅努(nu)斯(si)涂(tu)(tu)(tu)(tu)裝(zhuang)設備有(you)(you)限(xian)(xian)公(gong)司在(zai)大慶總(zong)機械(xie)廠油管(guan)(guan)(guan)(guan)(guan)分(fen)廠實(shi)現(xian)，并投入生(sheng)產(chan)應用(yong)。通(tong)過(guo)實(shi)際應用(yong)證明，此工藝可有(you)(you)效防(fang)(fang)(fang)止鋼(gang)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)縱(zong)向(xiang)擦(ca)傷，涂(tu)(tu)(tu)(tu)裝(zhuang)后(hou)只存在(zai)間隔600毫米分(fen)布的(de)(de)(de)(de)兩小點齒印，加上(shang)涂(tu)(tu)(tu)料本身的(de)(de)(de)(de)自(zi)愈性，所(suo)以(yi)形成(cheng)的(de)(de)(de)(de)涂(tu)(tu)(tu)膜宏(hong)觀完整(zheng)，用戶反映很好。進(jin)(jin)一步改進(jin)(jin)后(hou)的(de)(de)(de)(de)工(gong)藝，使鋼管始終與(yu)鏈(lian)條的(de)(de)(de)(de)“V”形齒局部接觸，而且前后(hou)鏈(lian)條同(tong)步運動，保證了噴涂(tu)(tu)(tu)表(biao)面(mian)與(yu)支點之(zhi)間的(de)(de)(de)(de)最(zui)小接觸，避免了輥道輸送條狀(zhuang)擦(ca)傷的(de)(de)(de)(de)弊病，涂(tu)(tu)(tu)膜美觀完整(zheng)。目(mu)前該技術(shu)水平(ping)無論在國際還是國內在當前也是比(bi)較(jiao)先進(jin)(jin)的(de)(de)(de)(de)。該技術(shu)不但先進(jin)(jin)而且成(cheng)熟，已經在國內13條自(zi)動涂(tu)(tu)(tu)油線上(shang)得(de)到驗(yan)證。至于(yu)螺(luo)旋帶狀(zhuang)擦(ca)傷的(de)(de)(de)(de)防止(zhi)非(fei)常簡單，去掉螺(luo)旋輸送改為此(ci)辦法即可。
