Jwalo ka moetsi ya ka sehloohong lefapheng lena,Sehlopha sa Pipe ea Tšepe ea Cangzhou Spiral Co., Ltd.e latela ka tieo maemo a machaba 'me e ikhetha ka tlhahiso ea electrofusion arc weldedliphaephe tsa tšepe tsa seam tse potolohange akaretsa limaraka tse hlano. Mofuta ona oaPhaephe ea tšepe ea ASTMe etselitsoe ka ho khetheha ho tsamaisa metsi, likhase kapa mouoane, ho netefatsa ts'ebetso e sireletsehileng le e sebetsang hantle libakeng tse fapaneng tse nang le khatello e phahameng le tse rarahaneng.
Matla a khamphani a bakoa ke bokgoni ba yona bo boholo ba tlhahiso bo tswetseng pele. Re na le mela e 13 ya tlhahiso ya diphaephe tsa tshepe tse potolohang le mela e 4 ya tlhahiso e thibelang mafome le ya ho thibela mocheso, e kgonang ho etsa diphaephe tsa tshepe tse potolohang tse nang le bophara ba kantle ho tloha ho dimilimithara tse 219 ho isa ho dimilimithara tse 3500 le botenya ba lebota bo fihlang ho dimilimithara tse 25.4.
Lihlahisoa tsa eona tsa lets'oao la "Wuzhou" ha li latele feela maemo a mangata a machaba a kang API Spec 5L le EN 10219, empa hape li fihlela ka botlalo litlhoko tsa maemo a bohlokoa a kang ASTM A139 le ASTM A252.
Liphaephe tsena tsa tšepe tsa Chaena tse lumellanang le maemo a ASTM li na le maemo a mangata a ts'ebeliso. Li sebelisitsoe ka katleho mererong ea bohlokoa joalo ka marang-rang a phepelo ea metsi le a drainage ea masepala, lipalangoang tsa khase ea tlhaho le oli tse hole, le litsamaiso tsa liphaephe tsa liqubu, tse fanang ka "methapo ea mali" e tiileng le e tšoarellang bakeng sa kaho ea meralo ea motheo ea lefats'e.
Ho kgetha moetsi ya nang le mangolo a mangolo a thuto ya matjhaba ke kgato ya pele ya ho netefatsa botshepehi ba nako e telele ba merero ya diphaephe. Sehlopha sa Cangzhou Spiral Steel Pipe, ka ho latela maemo a ASTM ka tieo le bokgoni bo matla ba tlhahiso bo ikgethileng, se fa bareki ditharollo tsa ho emisa ntho e le nngwe ho tloha tlhahisong ho isa ho kgahlanong le tshenyo.
Bakeng sa tlhahisoleseling e batsi mabapi le litlhaloso, lintlha tsa setifikeiti le bokhoni ba ho iketsetsa liphaephe tsa rona tsa tšepe tse potolohang tse lumellanang le maemo a ASTM, ka kopo ikopanye le sehlopha sa rona sa litsebi bakeng sa likeletso tse qaqileng tsa botekgeniki le litheolelo.
Nako ea poso: Tshitwe-01-2025