Ko te maitai taputapu mahi wera AISI H12 tētahi o ngā momo maitai taputapu e whakamahia whānuitia ana i roto i te whānau maitai taputapu, e mōhiotia ana mō tōna huinga tino pai o te pakari, te ātete wera, me te kaha o te kakahu. I te mea kei te haere tonu te tono a ngā ahumahi i ngā rauemi kaha ake, pakari ake hoki mō te whakarewa mate, te hanga, me te whakaputa,AISI H12he kōwhiringa pai tonu tēnei i waenga i ngā kaihanga me ngā kaihanga taputapu o te ao katoa.
I roto i tēnei tuhinga, ka tūhuratia e mātou he aha te maitai AISI H12, tōna hanganga matū, ōna āhuatanga miihini, te tukanga maimoatanga wera, ngā tono ahumahi noa, me te take.SAKYSTEELko tētahi o ngā kaiwhakarato tino pono o te maitai taputapu mahi wera H12.
1. Whakataki ki te AISI H12 Steel
Ko te AISI H12 he maitai taputapu wera e ahu mai ana i te chromium, nō te raupapa-H o ngā maitai, kei roto ko ngā momo penei i te H10, H11, me te H13. Ko te nuinga o ēnei maitai e whakamahia ana mō ngā mahi taputapu e pāngia ana e te pāmahana teitei me te ahotea miihini.
Ko te tohu "H" e pā ana ki te "Mahi Wera," e tohu ana kua hangaia te AISI H12 kia mau tonu te pakeke me te kaha ahakoa te whakamahinga i ngā pāmahana teitei. He tino ātete tēnei momo ki te pakaru o te ngenge wera, te waikura, me te whakangawari i raro i te wera roa.
Kua whakapūmautia te AISI H12 i raro i ētahi tohu ōrite:
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AISI H12 / UNS T20812
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Teihana Nama 1.2605
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DIN X35CrW5 / X35CrMoV5-1
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JIS SKD6
Nā te whakakotahitanga o te pakeke, te pakari, me te ātete ki te tirotiro wera, he mea tino pai te AISI H12 mō ngā taputapu taumaha, ngā mate wera, me ngā pokepokea extrusion.
2. Te Hanganga Matū o te AISI H12
Ko te mahi a te maitai AISI H12 e tino tautuhia ana e tōna hanganga matū kua tino taurite. Ko te aroaro o te chromium, te molybdenum, me te tungsten e whakarato ana i te kaha pāmahana teitei me te ātete ki te waikura, ko te waro e whakarite ana i te pakari me te ātete ki te kakahu.
| Huānga | Ihirangi (%) |
|---|---|
| Waro (C) | 0.35 – 0.45 |
| Konukōmiuma (Kr) | 4.75 – 5.50 |
| Molibdenuma (Mo) | 1.10 – 1.75 |
| Tungsten (W) | 1.00 – 1.75 |
| Vanadium (V) | 0.20 – 0.60 |
| Hiraka (Si) | 0.80 – 1.20 |
| Manganēhi (Mn) | 0.25 – 0.50 |
| Nikara (Ni) | ≤ 0.3 |
| Whānariki (S) + Whēkau (P) | ≤ 0.03 |
Mā tēnei hanganga ka taurite te hanganga moroiti e tautoko ana i te pumau o te wera me te miihini. Ka whakarei ake te nui o te chromium i te ātete ki te waikura me te pupuri i te pakeketanga, ā, ka whakakaha ake te maitai i ngā pāmahana teitei e te tungsten me te molybdenum.
3. Ngā Āhuatanga Ā-ringa o te AISI H12
Nā te mahi ā-pūkaha o te AISI H12 e pai ai mō ngā mahi e pā ana ki ngā huringa pēhanga me te pāmahana teitei. Ko ngā āhuatanga ā-pūkaha noa i muri i te maimoatanga wera koia ēnei:
| Taonga | Uara Noa |
|---|---|
| Pakari (Kua whakawerahia) | ≤ 229 HB |
| Pakari (Kua whakapakeketia & Kua whakamārōtia) | 44 – 52 HRC |
| Kaha Kume | 1500 – 1900 MPa |
| Te Kaha o te Hua | 1200 MPa (tata) |
| Te whakaroa | 10 – 15% |
| Te Pakari o te Pānga | Tino pai i te pāmahana teitei |
Ka whakakotahi te AISI H12 i te kaha wera nui me te pakari, e whakaiti ana i te tūponotanga o te pakaru i te wā e mahi ana i te whakarewatanga, i te hanga rānei. Mā tēnei huinga āhuatanga ka taea e te maitai te mahi pai i raro i te huringa wera auau.
4. Tukanga Maimoatanga Wera
He mea nui te tukatuka wera tika hei whakapai ake i te mahi ā-pūkaha o te AISI H12. Kei roto i te tukanga tukatuka wera paerewa ēnei mahi:
Te whakamahana
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Whakawerahia ki te 850–900°C.
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Puritia mō te 2–4 hāora i runga i te rahi o te wāhanga.
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Whakamatao mārire i roto i te oumu ki te 600°C, kātahi ki te hau.
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Hua: Hanganga ngohengohe me te pakeke ≤ 229 HB mō te miihini.
Te whakamahana i mua
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Whakamahanahia mārire i roto i ngā wāhanga e rua: tuatahi ki te 450–500°C, kātahi ki te 850–900°C.
Te whakapakeketanga
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Whakamahanahia ki te 1000–1050°C.
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Puritia mō te wā e tika ana (20–30 meneti).
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Whakawetohia i roto i te hau, te hinu, te kaukau tote rānei i te 550°C.
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Hua: Te mārō tae atu ki te 52 HRC.
Te whakamahana
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Whakamahanatia tonutia i muri i te whakapakeketanga.
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Te pāmahana whakamātao noa: 500–650°C.
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E taunakitia ana te whakamātao takirua hei whakapai ake i te pakari.
I muri i te whakamahana, ka taea te whakahaere i te pakeketanga whakamutunga kia rite ki te tono e hiahiatia ana — i waenganui i te nuinga o te wā44 ki te 52 HRC.
5. Ngā Painga o te AISI H12 Steel
He tino uara te AISI H12 mō ōna āhuatanga taurite. Kei raro nei ngā painga matua e pai ai hei rauemi pono mō ngā taputapu ahumahi:
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Ātete Nui ki te Ngenge Wera
Ātete ana ki te pakaru i raro i ngā huringa whakamahana me te whakamatao e whakahokia ana. -
Tino pakari
Ka mau tonu te kaha o te pānga ahakoa te nui o te ahotea me te pāmahana. -
Te Pūmautanga Ahu Pai
Mā te iti o te hē i te wā e whakamahanahia ana ka tika te mahi taputapu. -
Ātete ki te Whakangawari
Ka mau tonu te pakari i ngā pāmahana ratonga teitei tae atu ki te 600°C. -
Ātete Pai ki te Mau
He pai mō ngā taiao whakakoi pērā i ngā mate whakaputa me ngā hama hanga. -
Te Āhuatanga Mīhini me te Āhuatanga Whakakanapa
He ngāwari te whakamahi i te AISI H12, ā, ka taea te whakatutuki i tētahi mata maeneene.
Nā ēnei āhuatanga ka waiho te AISI H12 hei tētahi o ngā kōwhiringa tino whai hua mō ngā taputapu mahi wera taumaha.
6. Ngā Taupānga Ahumahi
E whakamahia ana te AISI H12 i roto i te whānuitanga o ngā mahi ahumahi e hiahia ana ki te ātete wera me te pakari. Ko ngā mahi noa ko:
1. Ngā Utauta Maka Mate
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Ngā mate maka mate pēhanga
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Ngā whakaurunga mate
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Ngā pine matua me ngā ringaringa
2. Ngā Mate Hanga
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Ngā mate hanga taka
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Ngā mate pēhi wera
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Ngā taputapu whakararuraru
3. Ngā Mate Whakaputa
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Ngā mate whakaputanga konumohe
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Ngā taputapu mate parahi me te konupora
4. Ngā pokepoke kirihou me ngā kaihoroi wera
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Ngā matua pokepokea ai werohanga kirihou
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Ngā pūnaha oma mō ngā kirihou pāmahana-tiketike
5. Ngā Wāhanga Rererangi me ngā Wāhanga Motuka
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Ngā mata o te turbine me ngā wāhanga o te nozzle
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Ngā nohoanga takirere miihini me ngā whakaurunga wera-teitei
6. Ngā Mata Kutikuti Wera me ngā Poka
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Ngā mata tapahi mō ngā rauemi pāmahana teitei
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Ngā taputapu wero mō te tukatuka maitai wera
Ko te whānui o te whakamahinga o te AISI H12 puta noa i ngā ahumahi maha e whakaatu ana i te pono o tōna mahi me te roa o tōna ora ratonga.
7. Whakataurite: AISI H12 me AISI H13 me H11
Ahakoa he rongonui ngā maitai mahi wera AISI H13 me H11, he taurite motuhake te kaha me te pakari o te H12.
| Taonga | AISI H11 | AISI H12 | AISI H13 |
|---|---|---|---|
| Waro (C) | 0.35 | 0.40 | 0.40 |
| Konukōmiuma (Kr) | 5.25 | 5.25 | 5.25 |
| Molibdenuma (Mo) | 1.25 | 1.25 | 1.35 |
| Tungsten (W) | — | 1.50 | — |
| Kaha Wera | Pai | Tino pai | Tino Pai |
| Ngenge Wera | Waenga | Tino pai | Tino pai |
| Ātete Kakahu | Waenga | Teitei | Tino Teitei |
AISI H12He kaha wera nui ake, he ātete hoki ki te pakaru, ki te whakaritea ki te H11, ā, he pakari ake i te H13 i ētahi whakamahinga. Nā tēnei he tino pai mō ngā pokepoke hanga taumaha me ngā pokepoke whakaputa.
8. Ngā Whakaaro mō te Mīhini me te Whakarewa
Mīhini
Me mīhini te AISI H12 i roto i tōna āhua whakamahana. Ko tōna whakatauranga āheinga mīhini he tata ki te 75% o te maitai AISI 4140. He mea nui te whakamahi i ngā taputapu carbide me te pupuri i ngā āhuatanga whakamatao tika kia roa ake ai te ora o te taputapu.
Whakarewa
Ka taea te whakarewa mā te whakamahana i mua (250–350°C) me te whakamahana i muri i te whakarewatanga kia kore ai e pakaru. He rite te hanganga o ngā rauemi whakakī e taunakitia ana ki te konganuku turanga.
Te Maimoatanga Mata
Mō te roa o te ora mahi, ka taea te whakamahi i ngā maimoatanga mata pēnei i te nitriding, te paninga PVD rānei. Ka whakaatuhia e ngā mata AISI H12 kua nitrided he pakeke ake, he ātete hoki ki te kakahu, me te kore e ngaro te pakari o te matua.
9. Ngā Puka me ngā Rahi Tuku
SAKYSTEELe tuku ana i te maitai taputapu mahi wera AISI H12 i roto i ngā āhua me ngā rahi rerekē, tae atu ki:
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Ngā pae porowhita
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Ngā pae papatahi
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Ngā pereti me ngā poraka
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Ngā pereki hanga-ringa
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Ngā mate kua oti te mīhini
Ka tukuna ngā rauemi katoa meEN 10204 3.1 Tiwhikete Whakamatau Miri, e whakaū ana i te hanganga matū me te mahi ā-ringa. Kei te wātea hoki ngā ratonga tapahi ritenga, te miihini tika, me te maimoatanga wera e ai ki ngā whakaritenga a te kiritaki.
10. Te Whakapūmau Kounga me ngā Paerewa
At SAKYSTEEL, ka hangaia ngā rauemi AISI H12 katoa i runga anō i ngā paerewa o te ao pēnei i:
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ASTM A681 – Koranu maitai taputapu
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DIN EN ISO 4957 – Ngā maitai taputapu
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JIS G4404 – Ngā Rino Utauta Koranu
Ka tirotirohia te kounga o ia puranga, tae atu ki te whakamātautau ultrasonic, te tirotiro pakeke, me te tātaritanga whakarewa hei whakarite kia kore he hapa i te mahi.
11. Ngā Tohutohu mō te Ora Pai o ngā Utauta
Hei whakatutuki i te roanga o te ora o ngā taputapu mai i ngā wāhanga AISI H12:
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Whakamahia te whakamahana tika i mua i te whakamahinga.
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Āraia te piki me te heke o te pāmahana.
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Whakamahanahia kia rua ngā wā kia pakari ake ai.
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Whakamahia te nitriding kia roa ake te mārō o te mata.
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Kia mau tonu te whakahinuhinu i ngā whakamahinga wera.
Mā te whai i ēnei aratohu ka roa te ora o te ratonga, ka iti ake te wā kore mahi, ā, ka penapena utu mō ngā kaiwhakamahi ahumahi.
12. Whakamutunga
He maitai taputapu mahi wera teitei te AISI H12 e tuku ana i te pakari tino pai, te ātete ki te wera, me te pumau o ngā āhuatanga i roto i ngā taiao ahumahi tino kino. Nā tōna hanganga koranu taurite me tōna ātete pai ki te ngenge wera, he mea pai mō te hanga, te whakarewa mate, me te hanga taputapu whakaputa.
Me ngā tau o te wheako hanga me te kaweake,SAKYSTEELe whakarato ana i ngā hua maitai AISI H12 kounga teitei e tutuki ana i ngā paerewa o te ao me ngā whakaritenga motuhake a te kiritaki. Ahakoa he poraka hanga, he pereti tapahi tika, he pae kua rite ki te mīhini rānei e hiahiatia ana e koe,SAKYSTEELe whakarite ana i te kounga pono, te tukunga i te wā tika, me te tautoko hangarau ngaio.
Wā tuku: Oketopa-28-2025