STPT 370He tohu tēnei nō te paerewa Hapanihi JIS G 3456 mō ngā paipa maitai waro, e whakamahia ana mō ngā paipa pēhanga i ngā taiao e neke ake ana i te 350°C te pāmahana. Ka taea te hanga hononga kore, te hanga hononga whakarewa rānei mā te whakamahi i te tukanga whakarewa ātete hiko (ERW). Ko ngā āhuatanga hangarau o te rauemi STPT 370 he kaha kume iti rawa o te 370 MPa me te kaha tuku iti rawa o te 215 MPa.
Mena kei te rapu koe i tētahi kaihanga me tētahi kaiwhakarato paipa rino e tutuki ana i te paerewa JIS G 3456, ko mātou te hoa mahi e rapuhia ana e koe. Whakapā mai ki a mātou i tēnei rā, ā, ka koa mātou ki te āwhina i a koe!
He pai mō ngā diameter o waho 10.5 mm - 660.4 mm (6A - 650A) (1/8B - 26B).
E rua ngā huarahi e whakaatu ai a A me B i te diameter ingoa i roto i te paerewa Hapanihi. Ina koa, ko A e rite ana ki a DN, ko B ia e rite ana ki a NPS.
Ka taea te whakaputa i te JIS G 3456 STPT 370 mā te whakamahi i tekore honongate tukanga hangahanga, te tukanga rāneiwhakarewa ātete hikotukanga (ERW).
Ka hāngai hoki te tukanga hanga ki ngā tikanga whakaoti rerekē kia taea ai te whakamahi i ngā taiao whakamahinga rerekē.
| Tohu o te māka | Tohu o te tukanga hangahanga | |
| Te tukanga hanga paipa | Tikanga whakaoti | |
| JIS G 3456 STPT370 | Tuitui kore: S | Kua oti te wera: H Kua oti te whakamatao: C |
| Ātete hiko whakarewa: E Whakarewahia te turanga: B | Kua oti te wera: H Kua oti te whakamatao: C I te mea he ātete hiko kua whakapirihia: G | |
Me whakamahana te STPT 370.
1. Paipa maitai kore-whakaoti wera: I te mea kua hangaia, ka taea te whakamahi i te whakamahana pāmahana-iti, te whakataurite rānei i runga i te hiahia;
2. Paipa maitai kore-whakaoti matao: Whakamahanahia i te pāmahana iti, whakapūmau rānei;
3. Paipa maitai hiko ātete-whakarewa kua oti te whakakī: I te mea kua hangaia, ka taea te whakamahi i te whakamahana pāmahana-iti, te whakataurite rānei i runga i te hiahia;
4. He paipa maitai kua oti te whakarewa me te ātete hiko kua oti te whakarewa: He whakamahana, he whakataurite rānei i te pāmahana iti.
| Tohu o te māka | C | Si | Mn | P | S |
| JIS G 3456 STPT370 | 0.25% te mōrahi | 0.10 - 0.35% | 0.30 - 0.90% | 0.035% te mōrahi | 0.035% te mōrahi |
Mena e tika ana, ka taea te tāpiri i ētahi atu wāhanga.
Te Kaha Kume, te Pūwāhi Tuku, te Taumahatanga Whakamātautau rānei, me te Toronga
Te Whakapapatahi i te Taonga
He pai mō ngā paipa he whānui o waho neke atu i te 60.5 mm.
Ka whakatakotoria te tauira ki waenganui i ngā papa e rua, ā, ka whakapapatahitia. Ina tae te tawhiti i waenganui i ngā pereti e rua ki teH, kāore he kapiti i te mata o te tauira paipa maitai.
H = 1.08t/(0.08+ t/H)
н: te tawhiti i waenga i nga pereti (mm);
t: te matotoru o te pakitara o te paipa (mm);
D: te whānui o waho o te paipa (mm);
Āheitanga Piko
He pai mō ngā paipa rino he 60.5 mm te whānui, iti iho rānei.
Ina pikohia te tauira huri noa i te mandrel ki te radius o roto e 6 ngā wā o te diameter o waho o te paipa, ka tirotirohia te tauira, ā, kāore he kapiti i kitea.
| Te matotoru o te pakitara ingoa | Tau o te Maramataka: Kura | |||||||||
| 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | |
| Te pēhanga whakamātautau waipēhi iti rawa, Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
Mena kāore te whānui o waho me te matotoru o te pakitara o te paipa maitai i te rite ki ngā rahi paerewa, ka taea te whakamahi i ēnei tikanga hei whakatau i te taumata whakatakotoranga e tika ana:
Tuatahi, tīpakohia te māka paerewa o te hōtaka e tata ana ki te rahi kore-paerewa; tuarua, whakatauhia te māka whakatakotoranga mā te tatau i te uara P.
I ngā tikanga e rua, me tīpako te uara iti hei māka whakatakotoranga whakamutunga.
P = 2/D
P: te pēhanga whakamātautau (MPa);
t: te matotoru o te pakitara o te paipa (mm);
D: te whānui o waho o te paipa (mm);
s: 60% o te uara iti rawa kua tohua o te pūwāhi tuku, te ahotea whakamātautau rānei;
Ko ngā tikanga whakamātautau kore-whakangaro noa ko te whakamātautau ultrasonic (UT) me te whakamātautau au hurihuri (ET).
I te wā e tirotirohia ana te ine ultrasonic, me whakamahi i te JIS G 0582, ā, ki te ōrite, ki te nui atu rānei te hua o te tirotiro i te paerewa tohutoro mō te akomanga UD, ka kiia he hapa.
I te wā e tirotirohia ana te au hurihuri, me aro ki te JIS G 0583. Mēnā he ōrite, he nui ake rānei te hua o te tirotiro i te paerewa tohutoro mō te karaehe EY, ka kiia he kore e tika.
Ko ngā ine paerewa me ngā matotoru o te pakitara i waenga i te 10.5 mm ki te 660.4 mm kua whakarārangihia ki roto i te JIS G 3456, koinei tetēpu taumaha paipa maitai me te rārangi mahi Nama e pā ana.
Kaupapa 10,Kaupapa 20,Kaupapa 30,Kaupapa 40,Kaupapa 60,Kaupapa 80,Kaupapa 100,Kaupapa 120,Kaupapa 140,Kaupapa 160.
Mai i tōna whakatūnga i te tau 2014,Botop Steelkua noho hei kaiwhakarato matua o ngā paipa maitai waro i te Tai Tokerau o Haina, e mōhiotia ana mō te ratonga pai rawa atu, ngā hua kounga teitei, me ngā otinga whānui.
He maha ngā momo paipa rino waro me ngā hua e pā ana ki tēnei kamupene, tae atu ki ngā paipa rino kore-tuia, ERW, LSAW, me SSAW, me te whānuitanga katoa o ngā hononga paipa me ngā flanges. Kei roto hoki i āna hua motuhake ngā koranu kounga teitei me ngā rino kowiri tira austenitic, i hangaia kia tutuki ai ngā hiahia o ngā kaupapa paipa rerekē.
Tēnā koa whakapā mai ki a mātou, ā, ka koa mātou ki te whakautu i ō pātai.
