Paerewa Paipa Rino Astm A139
Te whakaatu nei i te paipa maitai porowhita S235 J0 - he otinga maha-whakamahinga i hangaia hei whakatutuki i ngā hiahia kanorau o te ahumahi hou. I hangaia i roto i tētahi wheketere hou kei Cangzhou City, Hebei Province, ko tā mātou kamupene te kaiārahi i roto i te hanga maitai mai i te tau 1993. Ko te rohe o te kamupene he 350,000 mita pūrua, ā, ko te tapeke o ngā rawa he RMB 680 miriona. E whakahīhī ana mātou ki te whai i tētahi rōpū kaimahi whakatapua o te 680 tohunga mohio e whakatapua ana ki te whakarato hua kounga teitei.
Ko tētahi o ngā āhuatanga tino pai o te paipa rino porowhita S235 J0 ko tōna ngāwari whakamiharo ki te whānui me te matotoru o te pakitara. Mā tēnei urutau ka taea e mātou te whakatutuki i ngā momo whakaritenga hanga, inā koa i roto i te hanga paipa matotoru-taiepa kounga teitei. Ahakoa e hiahia ana koe ki te paipa mō te hanga, te hinu me te hau, me ētahi atu tono ahumahi rānei, kua hangaia tā mātou paipa S235 J0 kia tutuki ai ngā whakaritenga pakari.ASTM A139ngā paerewa paipa rino hei whakarite i te pono me te mahi ahakoa i roto i ngā taiao tino uaua.
Ko tā mātou whakapau kaha ki te kounga me te auahatanga, ko te tikanga ka whakamatautauria ia wahi o te paipa maitai porowhita S235 J0 me ngā tukanga whakahaere kounga, kia mōhio ai koe kāore te hua ka riro i a koe e tutuki ana i ngā paerewa ahumahi engari e hipa ana hoki. Me ō mātou wheako me ngā tohungatanga whānui, e whakapau kaha ana mātou ki te whakarato i ngā otinga pai rawa atu ki ō mātou kiritaki kia tutuki ai ā rātou hiahia.
Whakatakotoranga Hua
| kounga maitai | te kaha hua iti rawa Mpa | Te kaha o te kume | Te roanga iti rawa % | Pūngao pānga iti rawa J | ||||
| Te matotoru kua tohua mm | Te matotoru kua tohua mm | Te matotoru kua tohua mm | 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 | - | - | |||||
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 tino whakamatea 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 atu ngā huānga here-N kei roto. Me tuhi ngā huānga here-N ki roto i te Tuhinga Tirotiro. | ||||||||
Painga Hua
1. Ko tētahi o ngā painga matua o te paipa maitai ASTM A139 ko tōna ngāwari ki te whānui me te matotoru o te pakitara. Mā tēnei urutau ka taea e ngā kaihanga te whakaputa paipa i roto i ngā rahi rerekē hei whakatutuki i ngā whakaritenga o te kaupapa.
2. Ko ngā kaha whakaputa o tētahi kamupene pēnei i a mātou, kei Cangzhou, Porowini o Hebei, e whakarei ake ana i ngā painga o ASTM A139.
3. I whakatūria tō mātou wheketere i te tau 1993, e 350,000 mita pūrua te rahi, e 680 miriona RMB te tapeke o ngā rawa, ā, e 680 ngā kaimahi pūkenga e mahi ana. Mā tēnei hanganga whānui ka taea e mātou te whakatutuki i te whānuitanga o ngā hiahia o ngā kiritaki me te pupuri tonu i ngā paerewa hanga teitei.
Ngā ngoikoretanga o te hua
1. Kāore pea te paerewa ASTM A139 e kapi i ngā whakaritenga motuhake katoa mō ētahi tono, ā, ka hua ake pea he iti noa te mahi i raro i ngā āhuatanga tino kino.
2. Tērā pea he uaua ake, he nui ake hoki te utu o te tukanga whakaputa i ērā atu paerewa, ā, ka pā pea tēnei ki te utu me te wātea.
Pānga
He tino whai hua te Paipa Rino Porowhita S235 J0 ki ngā kaihanga nā tōna ngāwari ki te urutau. Mā te āheinga ki te whakarite i ngā diameter me ngā matotoru o te pakitara ka taea te hanga i tētahi paipa matotoru kounga teitei e tutuki ai ngā whakaritenga kaupapa motuhake. Ehara i te mea ka whakanui ake i te pai o te hanga anake tēnei ngāwari, engari ka whakarite hoki kia taea e te hua whakamutunga te tu atu i ngā momo āhuatanga taiao me ngā pēhanga, kia pai ai mō ngā momo tono maha.
Kei Cangzhou, te Porowini o Hebei, tō mātou wheketere, ā, he kaitākaro matua ia i roto i te umanga maitai mai i tōna whakatūnga i te tau 1993. E 350,000 mita pūrua te rahi o tō mātou wheketere, e 680 miriona RMB te tapeke o ngā rawa, ā, e 680 ngā kaimahi pūkenga e mahi ana. Mā tēnei hanganga pakari ka taea e mātou te whakaputa paipa maitai kounga teitei e tutuki ana i ngā paerewa ASTM A139, kia tutuki ai ā mātou hua i ngā whakaritenga pakari a ō mātou kiritaki.
Ko te ASTM A139paipa maitaiHe pānga nui tō te paerewa ki te hanga paipa maitai porowhita S235 J0, e whakapai ake ana i te urutau hanga me te kounga hua. I a mātou e haere tonu ana ki te auaha me te whakawhānui i ō mātou āheinga, ka noho pūmau tonu mātou ki te whakarato i ngā otinga maitai pai rawa atu e tutuki ai ngā hiahia hurihuri o te umanga.
Ngā Pātai Auau
Q1: He aha te ASTM A139?
Ko te ASTM A139 he paerewa e whakamārama ana i ngā whakaritenga mō ngā paipa maitai ātete-hiko. Ko ēnei paipa he mea whakamahi noa i roto i ngā tono pēhanga iti, ā, e mōhiotia ana mō tō rātou kaha me te roa. Mā te paerewa ka whakarite kia tutuki i ngā paipa ngā āhuatanga miihini me te hanganga matū motuhake, kia pai ai mō ngā momo whakamahinga ahumahi.
Q2: He aha ngā painga o te paipa maitai porowhita S235 J0?
Ko tētahi o ngā painga matua o te paipa maitai porowhita S235 J0 ko tōna ngāwari ki te whānui me te matotoru o te pakitara. Mā tēnei āheinga urutau ka taea e ngā kaihanga te whakaputa paipa matotoru te kounga teitei e taea ai te tu atu i ngā pēhanga me ngā ahotea nui. Nā te kaha ki te whakarite i ēnei whakaritenga ka waiho te paipa S235 J0 hei whiringa pai mō ngā kaupapa e hiahia ana ki te rahi me te kaha motuhake.
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