Kwicandelo leepayipi zemizi-mveliso, imigangatho yisiqinisekiso somgangatho. Namhlanje, siza kukwazisa umgangatho obalulekileyo we-ASTM A139 kwaye sikubonise iimveliso zepayipi zentsimbi ezijikelezayo ezikumgangatho ophezulu eziveliswe ngokusekwe kulo mgangatho.
Isishwankathelo seI-ASTM A139Umgangatho
I-ASTM A139 yi-"Standard Specification for Electric Fusion Steel Pipes" eyenziwe yi-American Society for Testing and Materials. Iquka ngokukodwa imibhobho yentsimbi eyenziwe ngenkqubo yokudibanisa ngombane. Lo mgangatho uquka amanqanaba amahlanu ukusuka ku-A ukuya ku-E, ikakhulu ahlelwe ngokusekelwe kumandla amancinci emveliso yemibhobho yentsimbi, kwaye isetyenziswa kakhulu kwiindawo ezinoxinzelelo oluphakathi okanye oluphezulu lokuthutha iigesi, amanzi, ioyile, kunye nezinye izinto ezimanzi.
I-ASTM A139 iyahambelana nemigangathoImibhobho yentsimbi ye-ASTMkufuneka kulawulwe ngokungqongqo inkqubo yokuvelisa kunye novavanyo oluqinileyo lokusebenza koomatshini ukuqinisekisa ukuba umbhobho ngamnye wentsimbi unomthamo ozinzileyo wokuthwala umthwalo kunye nomgangatho wokuwelda othembekileyo.
Iimveliso ezintsha ezisekelwe kwi-ASTM A139
Njengomvelisi ophambili weepayipi zentsimbi ezijikelezayo eTshayina, iCangzhou Spiral Steel Pipe Group isandula ukuqalisa umbhobho wentsimbi ojikelezayo we-S235 J0 osekelwe kumgangatho we-ASTM A139. Le mveliso imele impumelelo yethu yamva nje kwicandelo lobuchwepheshe beepayipi zentsimbi.
Le mveliso isebenzisa inkqubo yokwenza umbhobho wentsimbi ejikelezayo ephucukileyo kwaye inezi nzuzo zilandelayo:
Ulawulo lokuguqulwa okufanayo: Inkqubo yokwenza i-spiral iqinisekisa ukuba ipleyiti yentsimbi iphantsi kwamandla afanayo kulo lonke ukucubungula, kuthintelwe uxinzelelo lwendawo.
Ukunciphisa uxinzelelo olushiyekileyo: Ulawulo oluchanekileyo lweeparameter zokwenza luqinisekisa ukuba uxinzelelo olushiyekileyo ngaphakathi kombhobho wentsimbi luyancitshiswa, ngaloo ndlela kuphucula uzinzo lwexesha elide lwemveliso.
Umgangatho ogqwesileyo womphezulu: Unyango lomphezulu oluthambileyo nolungakrweliyo, lunciphisa ubunzima bokusetyenziswa kwengubo yokulwa nokugqwala emva koko kwaye lwandise ubomi benkonzo.
Isiqinisekiso samandla eshishini
Yasekwa ngo-1993, iCangzhou Spiral Steel Pipe Group ikwiCangzhou, kwiPhondo laseHebei. Iye yaba ngumvelisi omkhulu weepayipi zentsimbi ezijikelezayo kunye neemveliso zokugquma iipayipi eTshayina. Le nkampani igubungela indawo yeemitha zesikwere ezingama-350,000 kunye nempahla iyonke eyi-68 yezigidi zeeyuan kunye nabasebenzi abangama-680 okwangoku. I-1.8 yeebhiliyoni zeerandi zemveliso yonyaka, iitoni ezingama-400,000 zeepayipi zentsimbi ezijikelezayo ngonyaka.
Besisoloko sizisa iMigangatho yaMazwe ngaMazwe kwiMveliso yaseTshayina kangangeminyaka engama-30. Yonke ipayipi yentsimbi ye-ASTM ezalisekisa imigangatho ye-ASTM A139 AWWA NSC iphantsi kweenkqubo ezahlukeneyo zokuhlolwa ezibanzi ngexesha lokuthengwa kwezinto eziluhlaza de kufikelelwe kwimveliso yokugqibela.
Ukukhetha imibhobho yentsimbi ejikelezayo ehambelana nomgangatho we-ASTM A139 sisigqibo sokhuseleko, ukuthembeka kunye nokuqina. Iqela leCangzhou Spiral Steel Pipe lizimisele ukusebenzisana nawe ekwakheni iiprojekthi zemibhobho ezihlala ixesha elide.
Ixesha leposi: Matshi-05-2026