Mena kei te hiahia koe ki te mōhio atu ki ētahi atu kōrero, pēnei i te whakatau utu, ngā hua, ngā otinga, me ētahi atu, prīhiwhakapā mai ki a mātou i runga ipurangi.
He toa hokohoko a Tianjin Sanon Steel Pipe Co., Ltd. Kei te Tāone o Cangzhou, Porowini o Hebei tō mātou wheketere. Ko ā mātou puna matua o ngā taonga kongā paipa kōhua, ā, ko ngā rauemi e whakaatu ana i tēnei koASTM A335 P5/P11/P91/P92,ASME SA-106/SA-106MGR.B,GB/T 3087-200810#/20#. Ko ngā rauemi matua mō ngā paipa paipa koAPI 5L,API 5CT, ngā rauemi matua mō ngā paipa pakaru hinuGB/T 9948he 15MoG/12CrMoVGKo te GB/T 6479-2013 e tohu ana i ngā rauemi 10#/20#, ngā ngongo whakawhiti wera SA179/SA210/SA192, me ētahi atu. Ko ngā ngongo miihini GB/T 8162 e tohu ana i ngā rauemi 10#/20#/Q345/42CrMo, ko te EN10210 e tohu ana i ngā rauemi S355JOH/S355J2H, ko ngā ngongo rango hau GB1 8248 e tohu ana i ngā rauemi 34CrMo4/30CrMo.
GB/T 5310-Ko te 2017 te whakatakotoranga hangarau mō ngā paipa maitai kore hononga mō ngā poiha pēhanga teitei i roto i te paerewa ā-motu o Haina. E pā ana ki te hanga poiha mamaoa, ngā paipa, me ētahi atu taputapu e mahi ana i ngā pēhanga teitei, neke atu rānei.
E kapi ana tēnei paerewa i ngā momo maitai koranu, ko te 12CrMoG me te 15CrMoG ngā maitai koranu e rua e whakamahia whānuitia ana, he whānui ngā whakamahinga me ngā painga nui.
12CrMoGHe maitai koranu chromium-molybdenum tēnei, he tino ātete ki te pāmahana teitei me te ātete ki te waikura. He pai mō ngā whakamahana nui o ngā poiha, ngā whakamahana anō, ngā paipa mamaoa, me ētahi atu wāhanga e mahi ana i ngā pāmahana i raro iho i te 540°C. Ko ōna painga ko te kaha ngoki me te kaha manawanui, me te kaha ki te pupuri i ngā āhuatanga miihini pumau i raro i ngā taiao pāmahana teitei me te pēhanga teitei. He pai hoki te kaha whakarewa me te tukatuka, kia māmā ai te hanga me te tāuta.
15CrMoGKo tētahi atu maitai koranu chromium-molybdenum tēnei, he pai ake te mahi i te 12CrMoG. He pai mō ngā wāhanga poiha pēhanga teitei e mahi ana i ngā pāmahana i raro iho i te 550°C. He nui ake te kaha o tēnei rauemi ki te pāmahana teitei me te ātete ki te waikura, ā, he tino pai mō te hanga i ngā wāhanga matua pēnei i ngā pane poiha me ngā paipa mamaoa matua. He tino pai hoki te ātete o te 15CrMoG ki te waikura hauwai, e ārai ana i te pirau o ngā rauemi i roto i ngā taiao hauwai pēhanga teitei, pāmahana teitei, me te whakaroa i te ora o ngā taputapu.
E whakamahia whānuitia ana ēnei maitai koranu e rua i roto i ngā taputapu pāmahana teitei, pēhanga teitei i roto i ngā ahumahi hiko, matū hinu, me te matū. Ko ō rātou painga e whakaatuhia ana i roto i ngā āhuatanga e whai ake nei: Tuatahi, he tino pai ngā āhuatanga miihini pāmahana teitei, e āhei ai rātou ki te tu atu i ngā āhuatanga mahi pāmahana teitei, pēhanga teitei mō te wā roa; tuarua, he tino pai te pumau o te hanganga moroiti, e kore ai e ngoikore te hanganga i te wā roa o te mahi; tuatoru, he tino pai te kaha ki te whakarewa me te tukatuka, e whakahaere ana i te hanga me te tiaki; ā, hei whakamutunga, ka pai ake te haumaru me te pono o ngā taputapu i te whakamahinga, ka whakaiti i te wā kore mahi me te tiaki, ā, ka whakaiti i ngā utu whakahaere.
Kei te wātea hoki ētahi atu maitai koranu mahi-teitei hei whakatutuki i ngā hiahia o ngā momo pāmahana, pēhanga, me ngā taiao waikura.
20G(Te maitai waro)
Ahakoa ehara te 20G i te maitai koranu, he rauemi matua tēnei kua whakarārangihia i roto i te GB/T 5310-2017 hei maitai hanganga waro kounga teitei, e whakamahia ana i roto i ngā wāhanga poiha pāmahana-iti pērā i ngā economizer me ngā superheater pāmahana-iti. Ko ōna painga ko te iti o te utu me ngā āhuatanga miihini me te whakarewa pai rawa atu. He pai mō ngā paipa poiha pēhanga-waenga me te pēhanga-iti me ngā pāmahana whakahaere kāore e neke ake i te 450°C.
12Cr1MoVG
He maitai koranu chromium-molybdenum-vanadium te 12Cr1MoVG, he kaha teitei ki te pāmahana me te ātete ki te waikura, ki te whakaritea ki te 12CrMoG me te 15CrMoG. Mā te tāpiri o te vanadium ka whakapai ake i te kaha ngoki me te kaha manawanui o te rauemi, ka taea ai te pupuri i te mahi pumau i roto i ngā taiao pāmahana teitei mō te wā roa. He pai te 12Cr1MoVG mō ngā whakamahana nui o ngā poihau pēhanga teitei, ngā whakamahana anō, me ngā paipa mamaoa matua me ngā pāmahana mahi i raro i te 570°C.
25MnG(Rino Konupora Iti)
He rino iti-koranu te 25MnG, he nui te konupora, ā, he pai ake te kaha me te pakari ki te 20G. He nui ake te kaha whakaputa me te kaha kume, me te pupuri tonu i te kaha whakarewa. He pai te 25MnG mō ngā wāhanga poiha he paku teitei ake te pāmahana whakahaere, pērā i ngā ngongo whakamahana nui me ngā paipa mamaoa i roto i ngā poiha pēhanga-waenga. Ko tōna pāmahana whakahaere kāore e neke ake i te 480°C. Mō ngā wāhanga poiha he iti ake te pāmahana e hiahiatia ana, he pai ake te rino waro 20G nā te mea he pai ake te mahi ōhanga. Ina tata te pāmahana ki te 450°C, he kōwhiringa te 25MnG. Mō ngā pāmahana i waenga i te 450-500°C, e taunakihia ana te 15MoG. Mō ngā pāmahana i waenga i te 500-530°C, he kōwhiringa pai ake te 20MoG. Ka taea e ēnei momo kore-koranu me te iti-koranu, me te maitai koranu-teitei, te whakapai ake i ngā utu hanga poiha me te pupuri tonu i te mahi.
Wā tuku: 12 o Ākuhata 2025
