He aha te paipa X70?

Ko te paipa X70 he hua matua o te maitai paipa kounga teitei, me te kaha whakaputa neke atu i te 485 MPa, e piri ana ki ngā paerewa tino pakari pēnei i te API 5L me te GB/T 9711. Ka whakakotahi i te kaha teitei me te pakari tino pai, ā, ka taea te whakahaere ngāwari i ngā wero maha pēnei i te pēhanga teitei me te waikura i roto i ngā whakaurunga o raro whenua. Ka whakamahia e ia te tukanga whakarewa pewa hurihuri matatau (SSAW), ka takaihia te rīpene maitai ki te taha porowhita, kātahi ka whakarewahia. Ka tohatohahia te ahotea whakarewa, ka hoatu ki te paipa he kaha pēhanga tino pai me te ātete waikura, he tino pai mō ngā paipa hau o raro whenua, te hangarau turanga, me ētahi atu āhuatanga nui. Ko ngā whakatakotoranga hua mai i te 219mm ki te 3500mm, me te roa takitahi tae atu ki te 35 mita, e tino tutuki ana i ngā hiahia o ngā hanganga nui me ngā tono motuhake.

I runga i te kohikohinga hangarau mai i tōna whakatūnga i te tau 1993, he hinonga kaha a Cangzhou Spiral Steel Pipes Group Co., Ltd.: e 350,000 mita pūrua te rahi o tana wheketere, me ngā rawa katoa o te 680 miriona yuan, ā, e 680 āna kaimahi. Ko te kaha whakaputa ā-tau o ngā paipa maitai porowhita e eke ana ki te 400,000 tana, me te uara putanga ā-tau o te 1.8 piriona yuan. Ka tino whakahaerehia e te kamupene te tukanga katoa mai i te whiriwhiri rauemi mata ki te tirotiro hua, me te whakahaere i ngā whakamātautau maha pēnei i te whakamātautau irahiko me te kimi hapa ultrasonic kia roa ai te ora ratonga me te mahi pumau. Hei otinga Raina Paipa e whakakotahi ana i te kounga me te maha o ngā mahi, ko te X70 SSAWPaipa Rainaehara i te mea he pai anake mō te kawe hau me te wai i raro i te whenua, engari he pai hoki te mahi i roto i te whakatakotoranga paipa tawhiti me ngā āhuatanga tuku wai ahumahi, ka noho hei whiringa pono mō ngā kaupapa hanganga o te ao.