He Kupu Whakataki ki te 1.2379 Taputapu Maitai
1.2379 maitai taputapu, e mōhiotia ana hoki i te ao whānui ko te maitai D2, he maitai taputapu mahi makariri waro-teitei, chromium-teitei e mōhiotia ana mō tōna ātete ki te kakahu, tōna kaha pēhi teitei, me tōna pumau āhua pai rawa atu. He whānuitia te whakamahinga i roto i ngā momo mahi taputapu tae atu ki ngā mate parai, ngā patu, ngā mata kutikuti, me ngā taputapu hanga.
At SAKYSTEEL, he tohunga mātou ki te tuku maitai taputapu 1.2379 i roto i te pae porowhita, te pae papatahi, me ngā poraka hanga me te kounga kua oti te whakapūmau me te hanganga matū tika. I roto i tēnei tuhinga, ka whakaratohia e mātou he tātaritanga matū me te āhuatanga miihini katoa o te maitai 1.2379 me te tūhura i tōna maimoatanga wera, ngā tono, me te whakataurite ki ētahi atu maitai taputapu.
Te Hanganga Matū o te 1.2379 Taputapu Maitai (Paerewa DIN)
Ko te hanganga matū te tūāpapa o ngā āhuatanga ā-pūkaha me te āheinga o te maitai taputapu ki te tukatuka wera. E ai ki te DIN EN ISO 4957, ko te hanganga matū paerewa o te maitai taputapu 1.2379 (D2) e whai ake nei:
| Huānga | Ihirangi (%) |
|---|---|
| Waro (C) | 1.50 – 1.60 |
| Konukōmiuma (Kr) | 11.00 – 13.00 |
| Molibdenuma (Mo) | 0.70 – 1.00 |
| Vanadium (V) | 0.80 – 1.20 |
| Manganēhi (Mn) | 0.15 – 0.45 |
| Hiraka (Si) | 0.10 – 0.60 |
| Whēkau (P) | ≤ 0.03 |
| Whānariki (S) | ≤ 0.03 |
Ngā Kaupapa Matua o te Matū:
- Teitei o te Chromium (11-13%)ka whakarei ake i te ātete ki te waikura me te kakahu.
- Vanadium (0.8–1.2%)ka whakapai ake i te whakamahine o te witi, ka roa ake hoki te ora o te taputapu.
- Waro (1.5%)ka puta he mārō teitei i muri i te maimoatanga wera.
Ka hangaia e ēnei huānga whakarewa he whatunga warowaiha kaha i roto i te hanganga moroiti, ka nui ake te roa o te ora o te taputapu i roto i ngā taiao e ngāwari ana te kakahu.
Ngā Āhuatanga Ā-ringa o te 1.2379 Rino Taputapu
| Taonga | Uara Noa (Kua Whakamahanahia) | Āhua Whakapakeke |
|---|---|---|
| Te pakeketanga | ≤ 255 HB | 58 – 62 HRC |
| Kaha Kume | 700 – 950 MPa | Tae atu ki te 2000 MPa |
| Kaha Pehi | - | Teitei |
| Te Pakari o te Pānga | Waenga | Waenga |
Ngā Tuhipoka:
- I muri i te maimoatanga wera me te whakamātao, ka eke te maitai ki ngā taumata pakeke teitei tae atu ki te 62 HRC.
- Ka mau te pakeke ki te 425°C, e tika ana mō ngā mahi kawenga nui me ngā mahi tere nui.
Te Whakamahana i te Rino Utauta 1.2379 / D2
He nui te awe o te tukanga maimoatanga wera ki te mahi a te maitai taputapu D2.
1. Te whakamahana
- Te pāmahana:850 – 900°C
- Whakamatao:I whakamataohia te oumu i te mōrahi 10°C/haora ki te 600°C, kātahi ka whakamataohia ki te hau.
- Kaupapa:Hei whakaiti i te ahotea o roto, hei whakarite hoki mō te miihini.
2. Te whakapakeketanga
- Whakamahanahia:650 – 750°C
- Te Whakapūmau:1000 – 1040°C
- Te tinei:Hau, korehau, hinu rānei
- Tuhipoka:Āta karohia te wera nui rawa, kei whakakikiki pea te witi.
3. Te whakamahana
- Awhe Pāmahana:150 – 550°C
- Ngā huringa:E rua, e toru rānei ngā huringa whakamahana i te nuinga o te wā
- Te pakeketanga whakamutunga:58 – 62 HRC i runga i te pāmahana
Mā te tukanga whakamahana ka pakari, ka whakaiti hoki i te pakarukaru i muri i te tineia.
Ngā tono o te maitai taputapu 1.2379
E whakamahia whānuitia ana te maitai taputapu 1.2379 mō:
- Te whakapūmau me te patu i ngā mate
- Ngā mate hurihuri miro
- Ngā mate whakaputanga makariri
- Ngā taputapu hanga me te tā
- Ngā pokepoke kirihou e hiahia ana ki te ātete nui ki te kakahu
- Ngā maripi me ngā mata ahumahi
Nā te kaha o te ātete ki te kakahu me te pupuri i ngā taha, he tino pai te 1.2379 mō ngā oma whakaputa roa me ngā mahi pēhanga teitei.
Te Whakataurite ki Ētahi Atu Rino Utauta
| Te Kaupae Rino | Ātete Kakahu | Te pakari | Awhe Pakari (HRC) | Ātete ki te Waikura |
|---|---|---|---|---|
| 1.2379 / D2 | Tino Teitei | Waenga | 58–62 | Waenga |
| A2 | Teitei | Teitei | 57–61 | Iti |
| O1 | Waenga | Teitei | 57–62 | Iti |
| M2 (HSS) | Tino Teitei | Waenga | 62–66 | Waenga |
SAKYSTEELHe maha ngā wā ka tūtohu ngā kaihanga i te 1.2379 ina hiahiatia te pumau o ngā āhuatanga me te ātete ki te kakahu mō ngā mahi hanga nui.
Te Whakarewa me te Āheitanga Mīhini
Kāore i te tūtohutia te 1.2379 mō te whakarewa nā te mea he nui te waro kei roto, ā, he mōrearea hoki ki te pakaru. Mena he mea kāore e taea te karo i te whakarewa:
- Whakamahia ngā irahiko iti-hauwai
- Whakamahanahia ki te 250–300°C
- He mea whakahau te maimoatanga wera i muri i te whakarewatanga
Te āheinga ki te mīhini:
He māmā ake te mīhini i te 1.2379 i roto i tōna āhua whakamahana i muri i te whakapakeketanga. E taunakihia ana ngā taputapu carbide nā te mea kei roto ngā carbide mārō.
Ngā Maimoatanga Mata
Hei whakarei ake i te pakeketanga o te mata me te ātete ki te waikura, ka taea te whakamahi i te maitai taputapu 1.2379:
- Te whakanitiriti
- Paninga PVD (TiN, CrN)
- Whakakikorua kōromo mārō
Ka roa ake te ora o te taputapu i ēnei maimoatanga, inā koa i ngā whakamahinga waku nui.
Ngā Puka me ngā Rahi e Wātea ana
| Puka | Awhe Rahi e Wātea ana |
|---|---|
| Pae Porowhita | Ø 20 mm – 400 mm |
| Pae/Pereti Papatahi | Matotoru 10 mm – 200 mm |
| Poraka Hangaia | Ngā Rahi Ritenga |
| Whenua Tika | I runga i te tono |
Ka whakaratohia e mātou ngā ratonga tapahi me te whakamahana ritenga e ai ki ngā whakaritenga o te kaupapa.
Ngā Paerewa ōrite o1.2379 Rino Utauta
| Whenua | Paerewa / Tau |
|---|---|
| Tiamana | DIN 1.2379 |
| USA | AISI D2 |
| Hapani | JIS SKD11 |
| UK | BS BH21 |
| Wīwī | Z160CDV12 |
| ISO | X153CrMoV12 |
Mā tēnei ōritetanga ka taea te hoko mai i tēnei rauemi puta noa i te ao me te kounga rite tonu.
Whakatau: He aha i whiriwhiri ai i te maitai taputapu 1.2379?
He whiringa pai rawa atu te maitai taputapu 1.2379 / D2 mō ngā mahi taputapu mahi-teitei nā te mea:
- Te ātete kakahu teitei
- Te pumau o ngā āhuatanga i te wā e tukatukahia ana te wera
- He tino pakari
- Whānuitanga o ngā whakamahinga ahumahi
Mō ngā ahumahi e hiahia ana ki te pakari, te tika, me te utu iti o ngā taputapu, he pai tonu te kounga maitai 1.2379. Ahakoa mō te hanga mati, mō te hanga matao rānei, ka mahi tonu i raro i te pēhanga.
At SAKYSTEEL, ka oati mātou i te maitai taputapu 1.2379 kounga teitei me te hanganga matū tika me ngā ātete ā-rahi kikī. Whakapā mai ki a mātou mō te wātea o ngā taonga, te utu, me ngā ratonga miihini ritenga.
Ngā Pātai Auau mō te 1.2379 Taputapu Maitai
P1: He aha te pakeketanga mōrahi o te 1.2379 i muri i te maimoatanga wera?
A: Tae atu ki te 62 HRC i runga i te tukanga tinei me te whakamahana.
P2: Ka taea te whakamahi i te 1.2379 i roto i ngā āhuatanga mahi wera?
A: Kāo, he mea hanga mō ngā mahi matao.
Q3: He aukume te maitai D2?
Āe, i roto i tōna āhua pakeke, he ferromagnetic.
P4: He aha ngā huarahi kē atu hei whakakapi i te 1.2379?
A: E whakamahia ana ngā maitai taputapu A2 me M2 i runga i te pakari, te pakeketanga rānei e hiahiatia ana.
Wā tuku: Pipiri-25-2025