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.
I roto i te ao o ngā rauemi maitai, he rerekē ngā pūnaha paerewa e rite ana ki ngā taumata me ngā whakaritenga mahi rerekē. Ko te Q355D me te EN 10297 E355N he maitai hanganga iti-koranu kaha-teitei e rua e whakamahia whānuitia ana i roto i te hanga mīhini, ngā hanganga whare, me ngā wāhanga hangarau. Ahakoa he rite tonu te hanganga matū me te taumata kaha, i ahu mai i ngā pūnaha paerewa rerekē, e arahi ana ki ngā rerekētanga o ngā whakaritenga hangarau, ngā whānuitanga tono, me ngā taipitopito mahi. Ka whakatauritehia e tēnei tuhinga ēnei rauemi e rua hei āwhina i ngā kaiwhakamahi ki te whakatau whai whakaaro i runga i ngā hiahia mahi.
1. Ngā Pūnaha Paerewa me ngā Tikanga o te Tohu
Q355D: Nō te paerewa ā-motu Haina (GB/T 1591-2018) tēnei taumata mō ngā maitai hanganga koranu-iti kaha-teitei. Ko te "Q" e tohu ana i te kaha tuku, ko te "355" e tohu ana i te kaha tuku iti rawa o te 355 MPa, ā, ko te "D" e tohu ana i te kounga kounga, e tohu ana i te pakari pānga i te -20°C.
EN 10297 E355N: Ko tēnei taumata he wāhanga o te paerewa Pākehā (EN 10297-1:2003) mō ngā ngongo maitai kore-hono o ngā wāhanga porowhita, kore-porowhita rānei. Ko te "E355" e pā ana ki te kaha whakaputa iti rawa o te 355 MPa, ā, ko te "N" e tohu ana i te tukunga i roto i te āhua kua whakaritea, e whakarite ana i te hanganga moroiti me ngā āhuatanga ōrite mā te maimoatanga whakataurite.
2. Whakataurite i te Hanganga Matū
Ko te nuinga o ngā maitai e rua he waro (C), he silicon (Si), he manganese (Mn), me ētahi atu huānga whakarewa iti hei whakarei ake i te kaha me te pakari. I te nuinga, he rite tonu ō rātou whānuitanga hanganga, engari he rerekē ngā rohe motuhake:
Q355D: He iti ake te ihirangi waro (te nuinga o te wā ≤0.18%) me te whakahaere pakari i ngā poke whanariki (S) me te whākawa (P) hei whakapai ake i te kaha whakarewa me te pakari i te pāmahana iti. He iti noa iho ngā huānga whakarewa pēnei i te chromium (Cr) me te nickel (Ni).
E355N: Tērā pea he nui ake te ihirangi waro (te nuinga o te wā ≤0.20%), ā, tērā pea he iti noa ngā huānga kei roto pērā i te parahi (Cu). E whakanui ana ngā paerewa Pākehā i te hanganga taurite hei whakarite i ngā āhuatanga whānui i muri i te whakataurite.
3. Te Whakataurite i ngā Āhuatanga Mīhini
E 355 MPa te kaha whakaputa o ēnei e rua, engari he rerekē ētahi atu āhuatanga:
Te Pakari o te Pānga: Ko te kaha pānga o te Q355D "D" e hiahiatia ana he ≥34 J i te -20°C, he pai mō ngā taiao pāmahana iti. Ko te tikanga, kāore a E355N e tohu i ngā uara pānga pāmahana iti, engari ko te whakataurite ka whakarato i te pakari taiao pai.
Kaha Kume: Ko te Q355D kei waenga i te 470-630 MPa, ko te E355N ia kei waenga i te 490-630 MPa, me te awhe kukū ake mō te mea whakamutunga.
Tikanga Tukunga: Ko te Q355D ka tukuna i roto i ngā tikanga hurihuri wera, i ngā tikanga kua whakaritea rānei; ka tukuna motuhaketia te E355N kua whakaritea, kia rite ai te hanganga e tika ana mō te tukatuka atu.
4. Ngā Āpure Tono
Q355D: E whakamahia whānuitia ana i roto i ngā hanganga hanga, ngā piriti, te hanga waka, me ētahi atu tono i roto i ngā mākete o Haina me te ao, inā koa mō ngā wāhanga e pāngia ana e ngā kawenga hihiri i roto i ngā taiao pāmahana iti.
E355N: E whakamahia whānuitia ana i roto i te miihini me ngā wāhanga hanganga i raro i ngā paerewa Pākehā, pērā i ngā hua ngongo tui kounga teitei pērā i ngā rango waipēhi me ngā ringaringa whāriki, e whakanui ana i te ngāwari o te miihini me te pumau.
5. Ngā Taunakitanga Kōwhiringa
He pai ake te Q355D ina: Me whai tiwhikete pakari pāmahana-iti ngā kaupapa; me tutuki ngā paerewa Hainamana, ngā pūnaha hototahi rānei ki a GB.
Ko te E355N te mea e pai ake ana ki a koe ina: E aro ana ki ngā mākete Pākehā, ki ngā kiritaki rānei e hiahia ana ki ngā paerewa EN; e hiahia ana ngā wāhanga ki ngā āhuatanga kua whakaritea kia pai ai te whakamahi.
Hei whakarāpopototanga, ahakoa he rite te kaha o Q355D me EN 10297 E355N, i ahu mai rāua i ngā pūnaha paerewa rerekē, ā, e whakanui ana i ngā āhuatanga mahi rerekē. Me whai whakaaro ngā kaiwhakamahi ki ngā paerewa kaupapa, ngā āhuatanga taiao, me ngā whakaritenga tukatuka i te wā e whiriwhiri ana i waenga i a rāua. He mea tika kia kōrero ki ngā tohunga rauemi hei whakarite kia tutukihia te whakaritenga me te arotau.
Wā tuku: Hui-tanguru-06-2026
