Ngā Paipa Rino Tuitui Porowhita Whakarewa Raina Paipa
I Cangzhou Spiral Steel Pipe Group Co., Ltd., Tā mātoungā paipa tuitui porowhitahe hua kounga teitei e tutuki ana i ngā paerewa ahumahi teitei rawa atu. He maha ngā whakamahinga kua hangaia ā mātou paipa, ā, e mōhiotia ana mō tō rātou pakari, tō rātou kaha me te ātete ki te waikura.
Ko te waro te huānga taketake rawa atu o te maitai, ā, koinei te pūtake mō te wehewehe i te maitai mai i te rino. He mea hanga ā mātou paipa tuitui porowhita mai i te maitai waro kounga teitei, kia tino kaha ai, kia roa ai hoki te mau. Nā te nui o te waro, he pai ā mātou paipa mō ngā momo mahi ahumahi.
Āhuatanga Mīhini
| kounga maitai | te kaha hua iti rawa | Te kaha o te kume | Te roanga iti rawa | Pūngao pānga iti rawa | ||||
| Te matotoru kua tohua | Te matotoru kua tohua | Te matotoru kua tohua | i te pāmahana whakamātautau o | |||||
| <16 | >16≤40 | <3 | ≥3≤40 | ≤40 | -20℃ | 0℃ | 20℃ | |
| S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
| S275J0H | 275 | 265 | 430-580 | 410-560 | 20 | - | 27 | - |
| S275J2H | 27 | - | - | |||||
| S355J0H | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| S355J2H | 27 | - | - | |||||
| S355K2H | 40 | - | - | |||||
Haunga te waro, kei roto i ā mātou ngongo tuitui porowhita ētahi atu huānga matua pērā i te nikara me te konukōmiuma. He konganuku ferromagnetic te nikara e tāpiri ana ki te kaha whānui me te ngāwari o te whakakanapa o te paipa. Hei tāpiri, ka ātete ki te waikura, ā, ka roa ake te ora o ā mātou paipa. Ko te konukōmiuma, he huānga nui i roto i te maitai kore waikura, ā, he tino ātete ki te waikura. Mā te whakaurunga o te konukōmiuma ki roto i ā mātou paipa tuitui porowhita ka roa ake te ora me te pono.
Ko tētahi o ngā painga matua o ā mātou paipa tuitui porowhita ko tōna hoahoa tuturu, e tutukihia ana mā te hangarau whakarewa matatau. Mā tā mātou hangarau whakarewa SAWH (Submerged Arc Spiral Welding) hou rawa atu ka whakarite kia kaha, kia roa hoki te hononga i waenga i ngā pereti maitai o ngā paipa. Ehara i te mea ka whakarei ake tēnei hangarau whakarewa i ngā āhuatanga ā-pūkaha o te paipa anake, engari ka whakarite hoki kia maeneene te mata o roto, e pai ai te rere o ngā wai, ngā hau rānei.
He whānuitia te whakamahinga o ā mātou paipa tuitui porowhita i roto i ngā ahumahi maha, tae atu ki te hinu me te hau, te kawe wai, te hanga me te whakawhanaketanga hanganga. Ka taea te whakamahi i roto i ngā kaupapa o uta me te tai, me ngā pūnaha paipa mō ngā kaupapa rerekē. Nā tōna ātete pai ki te waikura me te kaha kume teitei, ko ā mātou paipa te whiringa tuatahi mō te whakarewa paipa i roto i ngā taiao uaua.
Te Hanganga Matū
| Te taumata maitai | Momo tango-waikura a | % mā te papatipu, mōrahi | ||||||
| Ingoa maitai | Tau maitai | C | C | Si | Mn | P | S | Nb |
| S235JRH | 1.0039 | FF | 0,17 | — | 1.40 | 0,040 | 0,040 | 0.009 |
| S275J0H | 1.0149 | FF | 0,20 | — | 1.50 | 0,035 | 0,035 | 0,009 |
| S275J2H | 1.0138 | FF | 0,20 | — | 1.50 | 0,030 | 0,030 | — |
| S355J0H | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
| S355J2H | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | — |
| S355K2H | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | — |
| a. Ko te tikanga tango-waikura e whai ake nei: FF: He maitai kua whakamatea katoatia kei roto ngā huānga here hauota i roto i ngā rahinga e ranea ana hei here i te hauota e wātea ana (hei tauira, iti rawa 0,020% Al katoa, 0,015% Al wairewa rānei). b. Kāore e pā te uara mōrahi mō te hauota mēnā he iti rawa te ihirangi Al katoa o te hanganga matū o te 0,020 % me te ōwehenga Al/N iti rawa o te 2:1, mēnā rānei he nui ngā huānga here-N kē atu kei roto. Me tuhi ngā huānga here-N ki roto i te Tuhinga Tirotiro. | ||||||||
I Cangzhou Spiral Steel Pipe Group Co., Ltd., ko te kounga me te pai o te kiritaki te mea nui ki a mātou. Ka whakarite tā mātou tīma tohunga kia whai mana kounga tino pai ia paipa tuitui porowhita kia tutuki ai ngā paerewa o te ao. Hei tāpiri, ka tukuna e mātou he whānuitanga o ngā kōwhiringa paninga mō ngā paipa, tae atu ki te epoxy, te polyethylene me te moata sima, hei whakarei ake i te ātete ki te waikura o te paipa me te whakaroa i tōna roanga mahi.
Hei whakarāpopototanga
E whakahīhī ana a Cangzhou Spiral Steel Pipe Group Co., Ltd. ki te whakarato i ngā paipa tuitui porowhita kounga teitei mō ngā momo mahi. Ka arotahi mātou ki te hanga tika, ki te hangarau whakarewa matatau me ngā rauemi kounga hei whakarato i ngā otinga pono, whai hua hoki ki ngā kiritaki mō ā rātou hiahia paipa. Whakawhirinaki mai ki a mātou ki te whakatutuki i ō hiahia katoa, ā, kia kite tuatahi koe i te pono me te pakari o ā mātou paipa tuitui porowhita.







