Ina tae ki te whiriwhiri i te pae maitai koranu tika mō ngā mahi miihini, rererangi, ahumahi rānei, e toru ngā ingoa ka puta ake i mua —4140, 4130, me4340He rongonui ēnei maitai chromium-molybdenum iti-koranu mō tō rātou kaha, tō rātou pakari, me te ngāwari ki te miihini. Engari me pēhea koe e mōhio ai ko tēhea te mea tika mō tō kaupapa?
I roto i tēnei aratohu whānui, ka whakatauritehia e mātou4140 vs 4130 vs 4340 ngā pae maitaiputa noa i ngā inenga matua pēnei i te hanganga matū, ngā āhuatanga miihini, te pakeke, te āheinga whakarewa, te maimoatanga wera, me te pai o te tono — hei āwhina i ngā kaihangarau, ngā kaihanga, me ngā kaihoko ki te whakatau rauemi whai whakaaro.
1. He Kupu Whakataki ki ngā Pae Rino 4140, 4130, me te 4340
1.1 He aha ngā maitai iti-konumohe?
Ko ngā maitai iti-koranu he maitai waro kei roto he iti noa ngā huānga koranu pēnei i te chromium (Cr), te molybdenum (Mo), me te nickel (Ni) hei whakapai ake i ngā āhuatanga motuhake.
1.2 Tirohanga Whānui mō ia Taumata
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4140 RinoHe maitai maha ngā whakamahinga, he kaha, he mārō hoki, e whakamahia whānuitia ana i roto i te hanga taputapu, i ngā wāhanga motuka, me te hangarau whānui.
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4130 RinoE mōhiotia ana mō tōna pakari me tōna ngāwari ki te whakarewa, e whakamahia ana i roto i ngā mahi rererangi me ngā hākinakina motuka.
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4340 RinoHe koranu nikara-konumā-moripenema he tino kaha, he ātete ki te ngenge, he mea pai mō ngā mahi rererangi me ngā mahi taumaha.
2. Whakataurite i te Hanganga Matū
| Huānga | 4130 (%) | 4140 (%) | 4340 (%) |
|---|---|---|---|
| Waro (C) | 0.28 – 0.33 | 0.38 – 0.43 | 0.38 – 0.43 |
| Manganēhi (Mn) | 0.40 – 0.60 | 0.75 – 1.00 | 0.60 – 0.80 |
| Konukōmiuma (Kr) | 0.80 – 1.10 | 0.80 – 1.10 | 0.70 – 0.90 |
| Molibdenuma (Mo) | 0.15 – 0.25 | 0.15 – 0.25 | 0.20 – 0.30 |
| Nikara (Ni) | – | – | 1.65 – 2.00 |
| Hiraka (Si) | 0.15 – 0.35 | 0.15 – 0.30 | 0.15 – 0.30 |
Ngā Tuhipoka Matua:
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4340kua tāpirihianikara, ka nui ake tōna pakari me te ātete ki te ngenge.
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4130he iti ake te ihirangi waro, e whakapai ake anate āheinga whakarewa.
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4140he nui ake te waro me te manganese, e whakanui ana i tete pakeke me te kaha.
3. Te Whakataurite i ngā Āhuatanga Mīhini
| Taonga | 4130 Rino | 4140 Rino | 4340 Rino |
|---|---|---|---|
| Kaha Kume (MPa) | 670 – 850 | 850 – 1000 | 930 – 1080 |
| Kaha Hua (MPa) | 460 – 560 | 655 – 785 | 745 – 860 |
| Te roa (%) | 20 – 25 | 20 – 25 | 16 – 20 |
| Te pakeketanga (HRC) | 18 – 25 | 28 – 32 | 28 – 45 |
| Te Pakari o te Pānga (J) | Teitei | Waenga | Tino Teitei |
4. Te Maimoatanga Wera me te Whakapakeketanga
4130
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Te Whakaōrite: 870–900°C
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Te whakapakeketanga: Te tinei hinu mai i te 870°C
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Te whakamahana: 480–650°C
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Pai rawa atu mōNgā tono e hiahiatia anate āheinga whakarewamepakari
4140
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Te whakapakeketangaTe tinei hinu mai i te 840–875°C
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Te whakamahana: 540–680°C
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Te WhakapakariTino pai — ka taea te whakapakari i te uauatanga hohonu
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Pai rawa atu mō: Ngā toki kaha-teitei, ngā taputapu, ngā toki porotaka
4340
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Te whakapakeketangaTe tinei hinu, te polymer rānei i te pāmahana mai i te 830–870°C
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Te whakamahana: 400–600°C
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rongonuiKa mau tonu te kaha ahakoa kua whakapakeketia rawatia
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Pai rawa atu mō: Taputapu taunga rererangi, ngā wāhanga taraiwa taumaha
5. Te Āheinga Whakarewa me te Āheinga Mīhini
| Taonga | 4130 | 4140 | 4340 |
|---|---|---|---|
| Āheitanga whakarewa | Tino pai | Tika ki te Pai | Tika |
| Te āheinga ki te mīhini | Pai | Pai | Waenga |
| Te whakamahana i mua | E taunakitia ana mō ngā wāhanga matotoru (>12mm) | ||
| Maimoatanga Wera i Muri i te Whakarewatanga | I tūtohutia mō te 4140 me te 4340 hei whakaiti i te ahotea me te pakaru |
4130He mea tino hirahira tēnei nā te mea he ngāwari ki te whakarewa mā te whakamahi i te TIG/MIG, ā, kāore e nui te ngatata, he mea tino pai mō ngā hanganga ngongo pēnei i ngā whare takahuri, ngā anga waka rererangi rānei.
6. Ngā tono mā te ahumahi
6.1 4130 Ngā Whakamahinga Rino
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Ngā ngongo rererangi
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Ngā anga reihi me ngā whare takahuri
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Ngā anga motopaika
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Ngā kaiwhiwhi pū
6.2 4140 Ngā Whakamahinga Rino
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Ngā kaipupuri taputapu
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Ngā porowhita
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Ngā taputapu
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Ngā toki me ngā pou
6.3 4340 Ngā Whakamahinga Rino
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Taputapu taunga waka rererangi
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Ngā pūtu me ngā here kaha-teitei
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Ngā wāhanga mīhini taumaha
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Ngā poka o te umanga hinu me te hau
7. Ngā Whakaaroaro Utu
| Tau | Utu Whakatairanga | Te wātea |
|---|---|---|
| 4130 | Iti | Teitei |
| 4140 | Waenga | Teitei |
| 4340 | Teitei | Waenga |
Nā tōnate nui o te nikara, Ko te 4340 te mea tino utu nuiHeoi, ko tōna mahi i roto i ngā tono uaua he mea tika te utu.
8. Ngā Paerewa me ngā Whakatakotoranga o te Ao
| Te Kaupae Rino | ASTM | SAE | EN/DIN | JIS |
|---|---|---|---|---|
| 4130 | A29/A519 | 4130 | 25CrMo4 | SCM430 |
| 4140 | A29/A322 | 4140 | 42CrMo4 | SCM440 |
| 4340 | A29/A322 | 4340 | 34CrNiMo6 | SNCM439 |
Me whakarite kia whakaratohia e tō kaiwhakarato maitai ngā tiwhikete whakamātautau mira e tutuki ana i ngā paerewa e tika ana pēnei i teASTM A29, EN 10250, rāneiJIS G4053.
9. Me pēhea te whiriwhiri i te pae maitai tika
| Whakaritenga | Te Tohu i Manakohia |
|---|---|
| Te kaha whakarewa pai rawa atu | 4130 |
| Ko te taurite pai rawa atu o te kaha me te utu | 4140 |
| Te pakari me te kaha ngenge tino kaha | 4340 |
| Te ātete kakahu teitei | 4340, whakapakeketia rānei 4140 |
| Te rererangi, te motuka rānei | 4340 |
| Hangarau whānui | 4140 |
10. Whakamutunga
I te whakataetae oPae Rino 4140 vs 4130 vs 4340, kāore he toa kotahi e pai ana mō te katoa — ko te kōwhiringa tika kei a koengā whakaritenga mō te mahi, te kaha, te utu, me te whakarewa.
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Kōwhiri4130ki te hiahia koe ki te ngāwari ki te whakarewa me te kaha taurite.
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Haere tahi4140mō tētahi kōwhiringa kaha-nui, utu-pai hoki e tika ana mō ngā toki me ngā taputapu.
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Tīpakohia4340ina he mea nui te pakari rawa, te kaha o te ngenge, me te ātete ki ngā ru.
Wā tuku: Hurae-24-2025