Ngokubukeka kwepayipi lensimbi, ukushisa okunwetshiwe kubomvu, futhi ububanzi bangaphakathi buyimpuphu ye-lead. Indlela yokucubungula ipayipi yensimbi evermal ukucubungula ipayipi lensimbi elincane libe yipayipi lensimbi enkulu. Izakhiwo zemishini zamapayipi ensimbi anwetshiwe zimbi kakhulu kunalezo zamapayipi ensimbi asongele.
Ipayipi lensimbi elandiswe ukushisa imvamisa lisho ipayipi lensimbi elinobuningi obuphansi obuphansi kodwa i-shrinkage eqinile. (Ipayipi lensimbi elingenamthungo) lingabizwa ngokuthi yibhopi elinwetshiwe lokushisa lifushane. Inqubo enolaka yokuqeda i-rolling inqubo lapho ububanzi bepayipi bukhuliswe ngendlela ye-diagonal rolling noma indlela yokudweba. Amapayipi ensimbi athuthukile ngesikhathi esifushane angakhiqiza okujwayelekile, izinhlobo ezikhethekile zamapayipi angenamthungo, futhi izindleko ziphansi futhi ukusebenza kahle kokukhiqiza kuphezulu, okuyindlela yokuthuthukisa yentuthuko yamanje, okuwumkhuba wentuthuko wamanje, okuyiwona umkhuba wamanje wokuthuthuka ensimini yepayipi yamanje.
Lapho amapayipi we-welding we-seamless angenazibuthe, sivame ukubona ukuhlanganiswa kwe-arc okungazinzile, ngisho ne-arc enzima ye-arc, ukuphambuka kwe-arc emandleni kazibuthe, futhi insimbi ebilisiwe kanye ne-slag incibilika ukugeza okushisayo. Ukuze uzinze inqubo ye-welding futhi uthuthukise ikhwalithi yokuhlangana kwe-welded, ipayipi lensimbi kazibuthe kufanele lidilizwe ngaphambi kokufudumala. Kunzima ukufeza ukubekezela okuphelele kwepayipi lensimbi elinezinwele, ngakho-ke i-welding ivunyelwe lapho ukhula olusele alunganele ukuthinta ikhwalithi ye-welding.
Isikhathi sePosi: Dec-28-2019