自来水用tpep防腐钢管直缝钢管、螺旋钢管等各种管道都可以加工。而美国的相关专利USB公开了一种钢管防腐内部冷却方法，该方法在钢管内部放入水泵，在钢管转动过程中向钢管内壁喷水，钢管和防腐层的冷却顺序为:钢管、FBE层、胶粘剂层和PE层。如薄点低于规定厚度,则为不合格,再抽查根，其中根仍末合格时,全部为不合格。鉴于水泥砂浆具有上述优点，其防腐的功能和经济性，被越来越多的国内外的工程技术部门认可，国内大中城市都使用水泥砂浆作为给水金属管道内防腐的主要受点。
    自来水用tpep防腐钢管环氧树脂粉末涂层首要缺陷是膜较薄，易受外伤，呈现砂眼，制造技术要求高，设备也较杂乱，野外施工办理难度大。不尽相同研发设计厂家，乃至不相同批次的产品功能差异较大，挑选时应着眼于其机械功能和密合性等。除了耐热性外，无论是作为防腐资料仍是防腐体系都劣于聚乙烯。就此导致涂得太厚的当地涂层厚度超过规范，构成现象；而涂得太薄或没有涂到的当地会构成钢管防腐才能下降，致使终究发作锈蚀的现象。（2）防腐剂挂滴。防腐剂像水滴相同凝结在钢管外表则变成是防腐剂挂滴现象，这种现象的发作时时没有直接关联到防腐性，也一样要确保钢管必定要求的防腐蚀力；可是从美观的角度来看，有防腐剂挂滴的钢管看上去不光泽，不均匀，直接影响了钢管的外观。
    自来水用(yong)(yong)(yong)(yong)(yong)(yong)tpep防腐钢(gang)管(guan)(guan)TPEP防腐钢(gang)管(guan)(guan)生产工(gong)(gong)艺(yi)介绍.1.中(zhong)(zhong)(zhong)(zhong)频(pin)加(jia)热(re)钢(gang)管(guan)(guan)较(jiao)传统的(de)(de)(de)(de)(de)电炉加(jia)热(re)方(fang)式(shi)(shi)，中(zhong)(zhong)(zhong)(zhong)频(pin)加(jia)热(re)具有(you)更(geng)高(gao)(gao)(gao)的(de)(de)(de)(de)(de)转化率，有(you)效(xiao)(xiao)(xiao)的(de)(de)(de)(de)(de)节约了电能。采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)中(zhong)(zhong)(zhong)(zhong)频(pin)加(jia)热(re)，钢(gang)管(guan)(guan)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)热(re)量由(you)内向外(wai)(wai)(wai)(wai)(wai)(wai)散(san)(san)发，使(shi)加(jia)热(re)温度(du)更(geng)加(jia)均(jun)匀(yun)，有(you)效(xiao)(xiao)(xiao)的(de)(de)(de)(de)(de)保证环氧(yang)(yang)涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)优(you)质(zhi)固(gu)(gu)化。2.单层(ceng)(ceng)(ceng)聚(ju)(ju)乙烯采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)内喷(pen)外(wai)(wai)(wai)(wai)(wai)(wai)淋(lin)工(gong)(gong)艺(yi)内喷(pen)涂(tu)(tu)(tu)环氧(yang)(yang)粉(fen)末(mo)(mo)、外(wai)(wai)(wai)(wai)(wai)(wai)淋(lin)涂(tu)(tu)(tu)聚(ju)(ju)乙烯粉(fen)末(mo)(mo)的(de)(de)(de)(de)(de)技(ji)术(shu)称为(wei)幕帘法，又称淋(lin)涂(tu)(tu)(tu)工(gong)(gong)艺(yi)，采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)中(zhong)(zhong)(zhong)(zhong)频(pin)加(jia)热(re)方(fang)式(shi)(shi)利用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)子余热(re)使(shi)二者同(tong)时(shi)固(gu)(gu)化，不需单独分别涂(tu)(tu)(tu)敷(fu)固(gu)(gu)化。3.三层(ceng)(ceng)(ceng)结(jie)构聚(ju)(ju)乙烯采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)熔结(jie)缠绕(rao)工(gong)(gong)艺(yi)内壁(bi)采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)热(re)喷(pen)涂(tu)(tu)(tu)环氧(yang)(yang)粉(fen)末(mo)(mo)防腐方(fang)式(shi)(shi)，将粉(fen)末(mo)(mo)经高(gao)(gao)(gao)温加(jia)热(re)熔结(jie)后均(jun)匀(yun)地涂(tu)(tu)(tu)敷(fu)在(zai)管(guan)(guan)体(ti)内表(biao)面上。外(wai)(wai)(wai)(wai)(wai)(wai)涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)涂(tu)(tu)(tu)敷(fu)采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)(gao)压(ya)挤(ji)出缠绕(rao)工(gong)(gong)艺(yi)，极大(da)地提高(gao)(gao)(gao)了致密(mi)性(xing)，涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)坚(jian)韧(ren)耐(nai)磨(mo)，抗冲击性(xing)及(ji)抗弯曲性(xing)优(you)良，能有(you)效(xiao)(xiao)(xiao)防止施工(gong)(gong)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)机械(xie)损坏及(ji)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)过(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)植物(wu)根系(xi)和土壤环境应力的(de)(de)(de)(de)(de)损坏。4.内外(wai)(wai)(wai)(wai)(wai)(wai)同(tong)时(shi)防腐,内环氧(yang)(yang)外(wai)(wai)(wai)(wai)(wai)(wai)三PE实(shi)现(xian)了同(tong)步涂(tu)(tu)(tu)覆，同(tong)步固(gu)(gu)化一次性(xing)成膜的(de)(de)(de)(de)(de)核心(xin)技(ji)术(shu)，内外(wai)(wai)(wai)(wai)(wai)(wai)表(biao)面同(tong)时(shi)进(jin)(jin)行涂(tu)(tu)(tu)覆不仅大(da)大(da)减少(shao)了喷(pen)涂(tu)(tu)(tu)时(shi)间(jian)，提高(gao)(gao)(gao)了工(gong)(gong)作效(xiao)(xiao)(xiao)率，并且(qie)涂(tu)(tu)(tu)覆过(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)，钢(gang)管(guan)(guan)在(zai)内外(wai)(wai)(wai)(wai)(wai)(wai)涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)同(tong)时(shi)包(bao)裹下，极大(da)限度(du)的(de)(de)(de)(de)(de)减小了热(re)量的(de)(de)(de)(de)(de)散(san)(san)失，充分利用(yong)(yong)(yong)(yong)(yong)(yong)了钢(gang)管(guan)(guan)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)潜热(re)，进(jin)(jin)一步提高(gao)(gao)(gao)了热(re)效(xiao)(xiao)(xiao)率。近年(nian)来，针(zhen)对(dui)管(guan)(guan)道(dao)涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)在(zai)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)过(guo)(guo)程(cheng)中(zhong)(zhong)(zhong)(zhong)遇到的(de)(de)(de)(de)(de)新问(wen)题(ti)和新要求，各国(guo)涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)生产商或(huo)在(zai)传统FBE、3LPE基(ji)础上进(jin)(jin)行材料(liao)改进(jin)(jin)或(huo)研发新型涂(tu)(tu)(tu)层(ceng)(ceng)(ceng)，目(mu)前已取得(de)一些具有(you)实(shi)际应用(yong)(yong)(yong)(yong)(yong)(yong)价(jia)值的(de)(de)(de)(de)(de)成果，并逐渐在(zai)生产中(zhong)(zhong)(zhong)(zhong)得(de)到应用(yong)(yong)(yong)(yong)(yong)(yong).