Nō nā tata nei, he puranga hou oNgā ngongo maitai tui-matao DIN 2391 St52mō Īnia kua oti pai. I mua i te tukunga,Botop Steelkua whakahaerehia he tirotiro tino tika mō ngā āhuatanga kia tino tutuki ai te hua i ngā whakaritenga hangarau me ngā paerewa tika a te kiritaki (kei te tāpirihia ngā whakaahua o te tirotiro ki te mutunga o te tuhinga).
Ko ngā ngongo maitai tino tika he ngongo maitai he pakupaku ngā āheinga ā-ahu, he kounga mata teitei hoki, e whakamahia whānuitia ana i roto i ngā taputapu waipēhi, ngā pūnaha hau, ngā wāhanga motuka me ētahi atu tono e hiahia ana kia tino tika te taunga.
Ko ngā paerewa e whakamahia whānuitia ana mō ngā ngongo maitai tui tino tika koDIN 2391, EN 10305-1, meGB/T 3639I roto i ēnei, ko te DIN 2391 St52 he momo e whakamahia whānuitia ana, e mōhiotia ana mō ōna āhuatanga miihini pai me tōna ngāwari ki te miihini.
He mea nui te āhua o te tukunga e pā ana ki te mahi a ngā ngongo maitai tika, nā te mea he rerekē ngā tukanga maimoatanga wera e whakamahia ana ki ngā ngongo.
| DIN 2391 | EN 10305-1 me GB/T 3639 | Whakatūnga | Whakaahuatanga |
| BK | +C | Kua oti te whakamatao (mārō) | Kāore ngā ngongo e whakamahanatia i muri i te hanganga makariri whakamutunga, nō reira, he tino ātete ki te whakarerekētanga. |
| BKW | +LC | Kua oti te whakamatao (ngawari) | Ā muri iho i te tukatuka wera whakamutunga ka kukumehia te matao me te iti o te whakarerekētanga. Ko te tukatuka tika ka taea te hanga matao i tētahi taumata (hei tauira, te piko me te whakawhanui). |
| BKS | +SR | Kua oti te whakamatao, ā, kua whakamamae i te ahotea | Ka whakamahia te maimoatanga wera i muri i te tukanga hanga matao whakamutunga. I raro i ngā tikanga tukatuka e tika ana, mā te pikinga ake o ngā ahotea toenga ka taea te hanga me te miihini ki tētahi taumata. |
| GBK | +A | Kua whakawerahia | A muri iho ka whakamahanahia i roto i te hau e whakahaerehia ana te tukanga hanga matao whakamutunga. |
| NBK | +N | Kua Whakaōritea | A muri iho ko te tukanga hanga matao whakamutunga ka whakamahanahia i runga ake i te pūwāhi whakawhiti o runga i roto i te hau e whakahaerehia ana. |
Ka mahi matao noa ngā ngongo BK (+C) me BKW (+LC), kāore e hiahiatia he maimoatanga wera, ko ngā ngongo BKS (+SR), GBK (+A), me NBK (+N) ia e hiahia ana ki tētahi tukanga maimoatanga wera e rite ana i muri i te mahi matao.
Mō tēnei ota, me whai ngongo tui tika DIN 2391 St52 te kiritaki i roto i te āhua BK. Ka whakamāramahia ngā āhuatanga rauemi o te St52 i roto i ngā āhua tuku rerekē i raro nei.
| Te taumata maitai | Te hanganga matū i roto i te % mā te papatipu | ||||
| C | Si | Mn | P | S | |
| DIN 2391 St52 | 0.22 mōrahi | 0.55 mōrahi | 1.60 te mōrahi | 0.025 mōrahi | 0.025 mōrahi |
| Te Āhua o te Tukunga Whakamutunga | Kaha Kume Rm | Kaha Hua ReH | Te Toronga A5 |
| BK | 640 Mpa te iti rawa | — | 4% iti rawa |
| BKW | Iti rawa 580 Mpa | — | Iti rawa 7% |
| BKS | Iti rawa 580 Mpa | 420 Mpa te iti rawa | 10% iti rawa |
| GBK | 490 Mpa te iti rawa | — | 22% iti rawa |
| NBK | 490 – 630 Mpa | 355 Mpa te iti rawa | 22% iti rawa |
He maha ngā whakaritenga o tēnei ota, i tēnei wā ka whakaaturia e mātou te whakaritenga o te ngongo me te OD 100mm × ID 80mm. E ai ki te DIN 2391, ko te manawanui o te OD me te ID mō tēnei whakaritenga he ±0.45 mm, engari i tēnei wā, i tono te kiritaki kia teitei ake te taumata o te tika, ā, i tohua he manawanui o te ±0.2 mm. Hei whakatutuki i ngā whakaritenga a te kiritaki, kua arotau motuhake a Botop Steel i te whakahaere i te tika o ngā āhuatanga o tēnei hua, ā, kua tirotirohia ia paipa maitai takitahi i mua i te tukunga kia tino tutuki ai ngā whakaritenga katoa.
Kei raro nei ētahi o ngā whakaahua o te tirotiro tuturu:
Tirotiro Diameter o Waho (OD: 80 ±0.2 mm)
Tirotiro i te Diameter o Roto (ID: 80 ±0.2 mm)
Tirotiro Roa
Kua roa a Botop e whai wāhi nui ana ki te umanga paipa rino, ā, nā te kaha o tana pupuri i te kounga me te ingoa pai kua riro i a ia te whakawhirinakitanga whānui o ngā kiritaki me te mōhiotanga o te mākete. Mā te mahi tahi tata me ngā kiritaki, ka whakapai tonu te kamupene i ana hua me ana ratonga kia tutuki ai ngā hiahia o te mākete e huri haere tonu ana.
Mena he hiahia paipa rino tāu, whakapā mai ki a mātou, kua rite te tīma ngaio ki te mahi ki a koe.
Wā tuku: Mei-09-2025