Lefatšeng la tlhahiso ea sejoale-joale, khetho ea tšepe ea lisebelisoa e bapala karolo ea bohlokoa ho khethoeng ha tlhahiso, bokhoni le nako ea bophelo ea lisebelisoa tsa indasteri. Har'a litšepe tse fapaneng tsa lisebelisoa tse chesang tse fumanehang kajeno,AISI H12e iphumanetse botumo bo botle ba ho bathepa e ratoang bakeng sa ho betla di-dies le lisebelisoa tsa ho ntša.
Sehlopha sena sa tšepe se sebetsang hantle se kopanya ho tiea, ho hanyetsa ho tsofala, le botsitso bo ikhethang ba mocheso—boleng ba bohlokoa liindastering tse kang tsa likoloi, tsa lifofane le tsa mechini e meholo. Sehloohong sena,SAKYSTELEe hlalosa lebaka leo ka lona AISI H12 e hlahelletseng e le khetho e holimo bakeng sa ts'ebetso ea ho betla le ho ntša.
1. Selelekela sa AISI H12 Hot Work Tool Steel
AISI H12 ke tšepe ea sesebelisoa se chesang se thehiloeng ho chromium e leng ea lelapa la H-letoto (H10–H13). E entsoe bakeng sa ts'ebetso e boima ea mocheso o phahameng e kenyelletsang ho futhumatsa khafetsa, ho pholisa le khatello ea mechine.
Tšepe ena e bontša tekano e ikhethang eaho ba thata, matla le ho hanyetsa mocheso, e leng se etsang hore e be ntle bakeng sa lits'ebetso tsa lisebelisoa tse kang li-dies tsa forging, li-mold tsa extrusion, le likarolo tsa die-casting.
Maemo a Tloaelehileng le Litekanyo tse Tšoanang
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AISI H12 / UNS T20812
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DIN X35CrW5
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Nomoro ea Werkstoff 1.2605
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JIS SKD6
Jwalo ka tshepe e sebetsang ka ho tjhesa e nang le mesebetsi e mengata, AISI H12 e sebediswa haholo diindastering tse etsang di-die ka lebaka la tshebetso ya yona e tsitsitseng le ho tshwarella tlasa maemo a feteletseng a tshebetso.
2. Sebopeho sa Lik'hemik'hale sa AISI H12
Tshebetso ya AISI H12 e tswa motswakong wa yona o ntlafaditsweng ka hloko wa alloy. Karolo e nngwe le e nngwe e thusa ho leka-lekana ho ikgethang ha tshepe ya thepa ya mechine le ya mocheso.
| Karolo | Dikahare (%) |
|---|---|
| Khabone (C) | 0.35–0.45 |
| Chromium (Cr) | 4.75–5.50 |
| Molybdenum (Mo) | 1.10–1.75 |
| Tungsten (Bohareng) | 1.00–1.75 |
| Vanadium (V) | 0.20–0.60 |
| Silicone (Si) | 0.80–1.20 |
| Manganese (Mn) | 0.25–0.50 |
| Nikele (Ni) | ≤ 0.3 |
| Sebabole + Fosforasi | ≤ 0.03 |
Melemo ea Bohlokoa ea Mosebetsi oa Sebopeho
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Chromium:E fana ka thata, ho hanyetsa mafome, le matla a mocheso o phahameng.
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Tungsten:E ntlafatsa ho tiea ha mocheso le ho hanyetsa ho thothomela ha mocheso.
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Molybdenum:E matlafatsa tšepe le ho eketsa ho hanyetsa mocheso.
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Vanadium:E ntlafatsa sebopeho sa lithollo mme e eketsa ho tiea.
Motsoako o leka-lekaneng oa likarolo tsena tsa ho kopanya o lumella AISI H12 ho sebetsa hantle haholo maemong a kenyeletsang meroalo e phahameng ea mocheso le khatello ea mechine.
3. Thepa ea Mekaniki
AISI H12 e boloka thepa e ntle ea mechini ho pholletsa le mefuta e fapaneng ea mocheso. Ho tiea ha eona le matla a eona a chesang li etsa hore e be thepa e loketseng bakeng sa lisebelisoa tse tlas'a maemo a thata a ho sebetsa.
| Thepa | Boleng bo Tloaelehileng |
|---|---|
| Botenya | 7.8 g/cm³ |
| Bothata (Bo atolositsoe) | ≤ 229 HB |
| Ho thatafala (ho thatafalitsoe le ho halefa) | 44–52 HRC |
| Matla a tšepe | 1500–1900 MPa |
| Matla a Tekanyo | Hoo e ka bang 1200 MPa |
| Ho lelefatsa | 10–15% |
| Matla a Tšusumetso | E ntle haholo mochesong o phahameng |
Litšobotsi tsena tsa mechini li lumella lisebelisoa tsa ho betla le tsa ho ntša tse entsoeng ka AISI H12 ho hanela ho fetoha, ho petsoha le ho senyeha pele ho nako nakong ea ts'ebetso e tsoelang pele.
4. Hobaneng AISI H12 e Loketse Bakeng sa ho Bopa Dife
Li-dies tsa ho betla li lula li pepesetsoa hokhatello e matla, khohlano le mocheso, haholo-holo lits'ebetsong tsa ho betla ka mocheso. Sebopeho se ikhethang sa motsoako oa AISI H12 se e lumella ho ipabola tlas'a maemo ana a feteletseng.
1. Matla a Chesang le ho Tiea ha 'Mele
AISI H12 e boloka thatafalo e babatsehang le matla a ho hatella esita le mochesong o kaholimo ho600°C, ho netefatsa botsitso bo boholo nakong ea litlhaselo tse boima tsa forging.
Ho tiea ha eona ho phahameng ho thibela ho petsoha le ho taboha—mathata a tloaelehileng ha ho sebelisoa litšepe tsa boemo bo tlaase tlas'a khatello e phahameng ea mechine.
2. Khanyetso ea Mokhathala oa Thermal
Nakong ea ho betla, li-dies li ba le lipotoloho tse potlakileng tsa ho futhumatsa le ho pholisa. AISI H12 e hanela mokhathala oa mocheso, kapa "ho hlahloba mocheso," ho molemo haholo ho feta litšepe tsa lisebelisoa tse tloaelehileng. Khanyetso ena e atolosa bophelo ba tšebeletso ea li-dies haholo.
3. Khanyetso e Hlollang ea ho Aparela
Ho betla ho kenyelletsa phallo ea tšepe e pheta-phetoang le ho kopana ka matla. Chromium le tungsten tsa AISI H12 li fana ka khanyetso e ikhethang ea ho tsofala, e fokotsang litšenyehelo tsa tlhokomelo ea die le ho nkela sebaka.
4. Botsitso ba Tekanyo Kamora Phekolo ea Mocheso
Ka lebaka la sebopeho sa eona se tsitsitseng, AISI H12 e boloka litekanyo tse nepahetseng esita le ka mor'a ho thatafala le ho tenyetseha. Sena se bohlokoa bakeng sa li-dies tse hlokang taolo e tiileng ea mamello le geometry e tsitsitseng ea likarolo.
5. Ho Boloka Litšenyehelo ka Bophelo bo Bolelele
Ka ho fana ka bophelo bo bolelele ba ho tjhesa le ho fokotsa kgafetsa ya tokiso, AISI H12 e fokotsa ditshitiso tsa tlhahiso mme e fokotsa ditjeo tsa disebediswa ka kakaretso.
5. Hobaneng AISI H12 e kgethwa bakeng sa Disebediswa tsa Extrusion
Lisebelisoa tsa ho ntša metsi li lokela ho mamellamocheso o phahameng, khatello e phahameng, le khohlano e matlaha di-billet tsa tshepe di qobellwa ho feta ka di-dies. AISI H12 e fana ka motswako wa ho hanyetsa ho tsofala, matla le botsitso ba mocheso tse tshwanelang diphephetso tsena hantle.
1. Ho hanyetsa ho fetoha ha polasetiki
AISI H12 e hanela ho fetoha le ho kobeha esita le tlas'a khatello e phahameng ea ho ntša, e netefatsa bophelo ba sesebelisoa bo bolelele le boleng bo tsitsitseng ba sehlahisoa se ntšang.
2. Botšepehi bo Phahameng ba Bokaholimo
Sebopeho se senyenyane sa tšepe se dumella libaka tse boreleli le tse bentšitsoeng, tse fokotsang khohlano nakong ea phallo ea tšepe. Sena se fokotsa ho khomarela le ho ntlafatsa katleho ea ho ntša.
3. Ho tsamaisa mocheso hantle haholo
Ho tsamaisa mocheso hantle ho dumella kabo e lekanang ya mocheso hodima bokahodimo ba die, ho thibela ho tjhesa ho feteletseng ha sebaka kapa ho hloleha ha sesebediswa.
4. Ho lumellana le Mekhoa ea Kalafo ea Bokaholimo
AISI H12 e arabela hantle hoho ntša metsi ka nitridingleLiaparo tsa PVD, e ka eketsang thatafalo ya bokaholimo ho feta 1000 HV, e ntlafatsang ho hanyetsa ho tsofala le ho oxidation nakong ya dipotoloho tse telele tsa ho ntsha.
5. Bophelo bo Atolositsoeng ba Tšebeletso ho Extrusion e se nang Ferrous
AISI H12 e loketse haholo bakeng saaluminium, koporo le magnesium extrusion, moo mocheso o leng holimo 'me ho nepahala ho le bohlokoa.
6. Papiso le Litšepe tse ling tse Chesang tsa Mosebetsi
| Thepa | AISI H11 | AISI H12 | AISI H13 |
|---|---|---|---|
| Matla a Chesang | Ho lokile | E babatsehang | Hantle haholo |
| Ho tiea | Holimo | Holimo Haholo | Holimo |
| Ho hanyetsa ho apara | E itekanetseng | Holimo | Holimo Haholo |
| Khanyetso ea Mokhathala oa Thermal | E itekanetseng | E babatsehang | E babatsehang |
| Ho Hanela ho Nolofatsa | Ho lokile | E babatsehang | E babatsehang |
| Ho sebetsa ha mechine | E babatsehang | Ho lokile | E itekanetseng |
Temohisiso ea Bohlokoa:
AISI H12 e fana ka tekano e phethahetseng pakeng tsaho tiea le ho hanyetsa mokhathala oa mocheso, e behe pakeng tsa H11 (e bonolo) le H13 (e thata empa e sa thata hakaalo). Bakeng sa disebediswa tsa ho betla le tsa ho ntsha disele, tekatekano ena e bohlokwa bakeng sa nako e telele ya sesebediswa.
7. Kalafo ea Mocheso bakeng sa Tshebetso e Ntle
Ho notlolla ka botlalo thepa ea AISI H12, kalafo e nepahetseng ea mocheso ea hlokahala.
Mokhoa oa Phekolo ea Mocheso
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Ho koahela:850–900°C, e tšoare lihora tse 2-4, ebe e pholile ho fihlela ho 600°C.
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Ho thatafatsa:1000–1050°C, moea kapa oli e timang.
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Ho leka-lekanya:500–650°C, ho kgothaletswa ho futhumatsa habeli.
Matlotlo a Hlahang
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Ho thatafala ho tšoanang pakeng tsa44–52 HRC.
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Bokgoni bo babatsehang le botsitso bo boholo.
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Kotsi e fokotsehileng ea ho petsoha tlas'a khatello ea mocheso.
Ka kalafo e laoloang ea mocheso, AISI H12 e fana ka thatafalo e ntle ka ho fetisisa bakeng sa lits'ebetso tsa ho betla le tsa ho ntša.
8. Tshebetso ya ho sebetsa ka mechine le ho tjheseletsa
Ho sebetsa ha mechine
AISI H12 e na le bokgoni bo itekanetseng ba ho sebetsa ka mechine—hoo e ka bang 75% ya tshepe ya AISI 4140. E sebetsa hantle ka ho fetisisa ha e le boemong ba ho tjheseletsa ka ho sebedisa disebediswa tsa carbide le ho phodisa ka katleho ho qoba ho thatafala ha mosebetsi.
Ho tjheseletsa
AISI H12 e ka tjheselletsoa bakeng sa ho lokisoa ka ho sebedisa dithupa tse loketseng tsa ho tlatsa le ho futhumatsa pele ho nako.250–350°CHo futhumatsa ka mora ho tjheseletsa ho thusa ho tsosolosa ho tiea le ho thibela ho petsoha.
9. Likhetho tsa Kalafo ea Bokaholimo
Bakeng sa ts'ebetso e kholoanyane le ho feta, AISI H12 e ka feta lits'ebetsong tsa ho thatafatsa bokaholimo tse kang:
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Ho ntša khase ka khase
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Ho ntša nitriding ka har'a plasma
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Liaparo tsa PVD kapa CVD
Mekhoa ena ea phekolo e ntlafatsa ho thatafala ha bokaholimo, e fokotsa khohlano, 'me e sireletsa khahlanong le oxidation - e eketsa bophelo ba sesebelisoa sa ho cheka le ho ntša metsi ka ho fihlela ho 30-50%.
10. Litšebeliso tse Tloaelehileng tsa AISI H12
Ho tenyetseha ha AISI H12 ho etsa hore e be ntle bakeng sa lits'ebetso tse fapaneng tsa mosebetsi o chesang liindastering tse ngata:
| Indasteri | Kopo |
|---|---|
| Likoloi | Ho betla di-dies, disebediswa tsa ho kuta, di-mold tse etsang mocheso |
| Lifofane | Li-extrusion li shoa bakeng sa likarolo tsa turbine |
| Litšepe tse se nang tšepe | Li-die tsa extrusion tsa aluminium le koporo |
| Lisebelisoa | Mahare a ho kuta a chesang, lithupa tse chesang, li-insert tsa die |
| Mechine e Boima | Lisebelisoa tsa ho tjhesa le ho hatella tse halefisang |
Tshebetso ya yona e tsitsitseng tlasa kgatello le mocheso e etsa hore AISI H12 e be bohlokwa haholo mesebetsing e meholo ya ho betla le ho ntsha.
11. Netefatso ea Boleng ke SAKYSTEEL
Jwalo ka e mong wa bafepedi ba ka sehloohong lefatsheng ba ditshipi tsa disebediswa,SAKYSTELEe fana ka dihlahiswa tsa AISI H12 tse fihlelang maemo a hodimo a matjhaba, ho kenyeletswaASTM A681, DIN EN ISO 4957leJIS G4404.
Hobaneng Khetha SAKYSTEEL
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Boleng bo Tiisitsoeng– EN 10204 3.1 Setifikeiti sa Teko ea Mill bakeng sa ho romelloa ha thepa eohle.
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Mefuta e Mengata ea Phepelo– Li-bar tse chitja, li-bar tse bataletseng, lipoleiti le li-block tse entsoeng ka mokhoa o ...
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Ts'ebetso e Ikhethileng– Ho seha ka nepo, kalafo ya mocheso, le ho e lokisa pele ho mochini.
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Tlhahlobo e Matla– Teko ea Ultrasonic, ho thatafala, le metallographic.
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Tšebeletso ea Lefatše ea ho Romela Linaheng Tse Ling– Ketane ea phepelo e tšepahalang ho pholletsa le linaha tse fetang 40.
Ka bokgoni bo tsoetseng pele ba tlhahiso le tšehetso ea botekgeniki ea litsebi,SAKYSTELEe netefatsa hore sehlahisoa se seng le se seng sa AISI H12 se fana ka ts'ebetso e tšepahalang le botsitso bakeng sa ts'ebetso ea hau ea lisebelisoa.
12. Kakaretso: Hobaneng AISI H12 e le Khetho e Ratwang
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Matla a Chesang a Ikhethang le ho Tiea– E sebetsa ka botshepehi tlas'a khatello e matla ea forging le extrusion.
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Khanyetso e Hlollang ea Mokhathala oa Thermal– E hanela ho lekoa ha mocheso le ho petsoha nakong ea lipotoloho tse pheta-phetoang.
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Ho sebetsa hantle le ho weldable– Ho bonolo ho e lokisa le ho e kenya ka dibopeho tse rarahaneng.
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Bophelo ba Sesebelisoa se Telele le Bokgoni ba Litšenyehelo– E fokotsa nako ea ho sebetsa le litšenyehelo tsa ho nkela lisebelisoa sebaka.
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Ho lumellana ha indasteri ka bophara– E loketse bakeng sa ho betla die, die tsa extrusion, le disebediswa tse chesang tsa ho kuta.
Ha ho na tšepe e 'ngoe e chesang e fanang ka tekanyo e tšoanang eamatla, ho tiea le botsitso ba mochesoe le AISI H12—e leng se etsang hore e be thepa e sebelisoang haholo bakeng sa lisebelisoa tsa indasteri lefatšeng ka bophara.
13. Qetello
Lisebelisoa tsa ho betla le ho ntša li hloka thepa e khonang ho mamella khatello e matla ea mechine le ea mocheso.Sesebelisoa sa Mosebetsi se Chesang sa AISI H12E fihlela litlhoko tsena ka ho tiea ha eona ho phahameng, ho hanyetsa mokhathala oa mocheso, le ts'ebetso e tsitsitseng mochesong o phahameng.
Hore na o etsa di-dies tsa ho betla tse sebetsang ka thata kapa disebediswa tsa ho ntsha tse nepahetseng haholo,SAKYSTELEe fana ka thepa e netefalitsoeng ea AISI H12 ho netefatsa boleng bo tsitsitseng, bophelo bo bolelele ba lisebelisoa, le ts'ebetso e ntle ea tlhahiso.
Ka boitlamo bo matla ba ho hlahisa le ho etsa lintho tse ntle ka ho fetisisa tsa tšepe,SAKYSTELEe ntse e tsoela pele ho ba molekane oa hau ea tšepahalang litharollong tsa tšepe ea lisebelisoa tse chesang tse sebetsang hantle haholo.
Nako ea poso: Mphalane-28-2025