Emkhakheni wamapayipi ezimboni, amazinga ayisiqinisekiso sekhwalithi. Namuhla, sizokwethula izinga elibalulekile le-ASTM A139 futhi sikwethule imikhiqizo yamapayipi ensimbi ajikelezayo esezingeni eliphezulu akhiqizwa ngokusekelwe kule nqubo.
Ukubuka konke kweI-ASTM A139Okujwayelekile
I-ASTM A139 "Incazelo Ejwayelekile Yamapayipi Ensimbi Ahlanganisiwe Kagesi" eyakhiwe yi-American Society for Testing and Materials. Ihlanganisa ngqo amapayipi ensimbi akhiqizwa kusetshenziswa inqubo yokushisela ngogesi. Leli zinga lihlanganisa amazinga amahlanu kusukela ku-A kuya ku-E, ikakhulukazi ahlukaniswe ngokusekelwe emandleni amancane okukhiqiza amapayipi ensimbi, futhi lisetshenziswa kabanzi ezindaweni ezinomfutho ophakathi noma ophakeme wokuthutha amagesi, amanzi, uwoyela, nezinye izinto eziwuketshezi.
I-ASTM A139 iyahambisana nezindinganisoAmapayipi Ensimbi E-Astmkumele kulawulwe inqubo yokukhiqiza ngokuqinile kanye nokuhlolwa kokusebenza okuqinile kwemishini ukuqinisekisa ukuthi ipayipi ngalinye lensimbi linomthamo ozinzile wokuthwala umthwalo kanye nekhwalithi yokushisela ethembekile.
Imikhiqizo emisha esekelwe ku-ASTM A139
Njengomkhiqizi ohamba phambili wamapayipi ensimbi ajikelezayo eShayina, iCangzhou Spiral Steel Pipe Group isanda kwethula ipayipi lensimbi elijikelezayo le-S235 J0 elisekelwe kumazinga e-ASTM A139. Lo mkhiqizo umelela intuthuko yethu yakamuva emkhakheni wobuchwepheshe bamapayipi ensimbi.
Lo mkhiqizo usebenzisa inqubo yokwakha amapayipi ensimbi ajikelezayo ethuthukisiwe futhi unezinzuzo ezilandelayo eziphawulekayo:
Ukulawulwa kokuguquguquka okufanayo: Inqubo yokwakha okujikelezayo iqinisekisa ukuthi ipuleti lensimbi lifakwa amandla afanayo kulo lonke ukucubungula, kugwenywe ukugxilisa ingqondo kwendawo.
Ukunciphisa ukucindezeleka okusele: Ukulawula okunembile kwamapharamitha okwakha kuqinisekisa ukuthi ukucindezeleka okusele ngaphakathi kwepayipi lensimbi kuyancishiswa, ngaleyo ndlela kuthuthukisa ukuzinza kwesikhathi eside komkhiqizo.
Ikhwalithi ephezulu kakhulu yobuso: Ukwelashwa kobuso okubushelelezi nokungaklwebhi, kunciphisa ubunzima bokusetshenziswa kwesembozo sokulwa nokugqwala okulandelayo futhi kwandise impilo yesevisi.
Isiqinisekiso samandla ebhizinisi
Yasungulwa ngo-1993, iCangzhou Spiral Steel Pipe Group itholakala eCangzhou, eSifundazweni saseHebei. Isibe ngumkhiqizi omkhulu wamapayipi ensimbi ajikelezayo kanye nemikhiqizo yokumboza amapayipi eShayina. Le nkampani ihlanganisa indawo engamamitha-skwele angu-350,000 ngempahla iyonke engama-yuan ayizigidi ezingu-68 kanye nabasebenzi abangu-680 njengamanje. I-RMB eyizigidigidi eziyi-1.8 yonyaka, amathani angu-400,000 amapayipi ensimbi ajikelezayo ngonyaka.
Besilokhu siletha amazinga omhlaba wonke ekukhiqizweni kwaseShayina iminyaka engama-30. Wonke amapayipi ensimbi e-ASTM agcwalisa amazinga e-ASTM A139 AWWA NSC ahlolwa ngezindlela ezahlukene ngesikhathi sokuthengwa kwezinto zokusetshenziswa kuze kube yilapho umkhiqizo wokugcina ulethwa.
Ukukhetha amapayipi ensimbi ajikelezayo ahambisana nezindinganiso ze-ASTM A139 kuyisinqumo sokuphepha, ukwethembeka kanye nokuqina. I-Cangzhou Spiral Steel Pipe Group izimisele ukubambisana nawe ekwakheni amaphrojekthi amapayipi ahlala isikhathi eside.
Isikhathi sokuthunyelwe: Mashi-05-2026