Liindastering tsa sejoale-joale tse kang forging, die casting, le extrusion, litšepe tsa lisebelisoa li bapala karolo ea bohlokoa ho fihlelleng ho nepahala, ho tšoarella le ho sebetsa hantle. Har'a litšepe tse fapaneng tsa lisebelisoa tse chesang,AISI H12e hlahella e le thepa e kopanyang matla, ho tiea le ho hanyetsa mocheso—e leng se etsang hore e be khetho e ntle ka ho fetisisa bakeng sa lisebelisoa tsa mocheso o phahameng.
Sehlooho sena se tla hlahloba se etsang horeSesebelisoa sa Mosebetsi se Chesang sa AISI H12tharollo e phethahetseng bakeng sa lits'ebetso tsa ho betla le ho lahla ka dae, e akaretsang sebopeho sa eona, thepa ea mechini, kalafo ea mocheso le melemo ea bohlokoa. Re tla boela re hlahise lebakaSAKYSTELEke e mong oa bafepedi ba ka sehloohong ba tšepe ea H12 lefatšeng ka bophara.
1. Kakaretso ea AISI H12 Hot Work Tool Steel Steel
AISI H12, eo hape e kgethilweng e leUNS T20812 or DIN X35CrW5, ke tšepe ea sesebelisoa se chesang se kopantsoeng le chromium-molybdenum-tungsten. Ke ea litšepe tsa letoto la H (H10–H13), tse entsoeng ka ho khetheha bakeng sa lits'ebetso tse kenyeletsang mocheso o phahameng le khatello e matla ea mechini.
Litšepe tsa lisebelisoa tse chesang tse kang H12 li etselitsoe ho boloka ho tiea le ho hanela mokhathala oa mocheso esita le tlas'a potoloho ea ho futhumatsa le ho pholisa khafetsa. Sena se etsa hore li lokele hlobo, li-dies le lisebelisoa tse sebelisoang lits'ebetsong tsa ho fetola mocheso.
Maemo a Lekanang
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AISI H12 / UNS T20812
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Nomoro ea Werkstoff 1.2605
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DIN X35CrW5 / X35CrMoV5-1
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JIS SKD6
AISI H12e pakeng tsa H11 le H13 mabapi le sebopeho le tshebetso, e fana ka motswako o leka-lekaneng wa matla, ho tiya le ho hanyetsa mocheso.
2. Sebopeho sa Lik'hemik'hale sa AISI H12
Sebopeho sa AISI H12 se fana ka motsoako oa ho tiea ha mechini le botsitso ba mocheso, ho netefatsa ts'epo tlas'a mocheso o phahameng le khatello.
| 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 (S+P) | ≤ 0.03 |
Melemo ea Metallurgical
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Chromium (Cr):E eketsa ho hanyetsa ho tsofala le ho hanyetsa ho bola.
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Tungsten (Bohareng):E ntlafatsa ho tiea ha bofubelu mochesong o phahameng.
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Molybdenum (Mo):E eketsa matla le ho fokotsa ho robeha ha letlalo.
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Vanadium (V):E ntlafatsa sebopeho sa thollo mme e ntlafatsa ho tiea.
Sistimi ena e ntlafalitsoeng ea alloy e fa AISI H12 tekanyo ea eona e ntle ea ho thatafala, matla le botsitso ba mocheso - e phethahetseng bakeng sa lits'ebetso tsa mosebetsi o chesang.
3. Thepa ea Mekaniki
Kamora kalafo e nepahetseng ea mocheso, AISI H12 e bontša ts'ebetso e ikhethang ea mechini, e netefatsang ts'epo esita le tlas'a potoloho e matla ea mocheso.
| 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 |
Matlotlo ana a dumella disebediswa tsa AISI H12 ho sebetsa dibakeng tse mabifi tse kang di-dies tse chesang tsa ho betla le di-mold tse lahlang di-die ntle le ho tsofala pele ho nako kapa ho petsoha.
4. Mokhoa oa ho Phekola Mocheso
Ho fihlela thepa e ntle ka ho fetisisa, AISI H12 e tlameha ho feta tatellanong e nepahetseng ea kalafo ea mocheso. Ts'ebetso ena e eketsa ho thatafala, matla le botsitso ba boholo.
Annealing
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Mocheso ho850–900°C
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Tšoara lihora tse 2-4
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Setofo se phole ho fihlela ho 600°C, ebe sea phola moeeng
Sephetho:Sebopeho se bonolo (≤229 HB) bakeng sa ho sebetsa habonolo.
Ho futhumatsa
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Ho futhumatsa butle-butle ka mekhahlelo e 'meli:
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450–500°C
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850–900°C
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Ho thatafatsa
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Ho fafatsa ka botlalo ho1000–1050°C
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Tšoara metsotso e 20-30
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Ho tima moea kapa oli
Sephetho:Boima ba ho fihlela ho 52 HRC.
Ho leka-lekanya
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Halefisa hang ka mor'a ho tima.
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Ho kgothaletswa ho futhumatsa habeli ho500–650°C.
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Bothata ba ho qetela bo fetotsoe ho 44–52 HRC ho latela litlhoko tsa sesebelisoa.
Kalafo e nepahetseng ea mocheso e netefatsa sebopeho se setle sa micro, matla a phahameng, le ho hanyetsa ho thothomela ha mocheso.
5. Melemo ea Bohlokoa ea AISI H12
Sesebelisoa sa AISI H12 se Chesang sa Mosebetsi se fana ka melemo e 'maloa e ikhethang e etsang hore e be khetho e khethiloeng bakeng sa lits'ebetso tsa lisebelisoa le li-die:
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Matla a Chesang a Phahameng
E boloka botsitso ba mechini esita le ho feta 600°C. -
Khanyetso e Hlollang ea Mokhathala oa Thermal
E hanela ho hlahlojoa ha mocheso le ho petsoha nakong ea potoloho ea ho futhumatsa e pheta-phetoang. -
Matla a Phahameng
Ho shapuoa ho ikhethang le ho hanyetsa tšusumetso tlas'a khatello e matla. -
Botsitso bo Botle ba Tekanyo
Ho sotha ho fokolang ka mor'a kalafo ea mocheso. -
Ho Hanela ho Nolofatsa
E boloka ho tiea ha mocheso o phahameng. -
Ho Hlōla le ho Abrasion Khanyetso
Tshebetso e ntle haholo libakeng tse nang le khohlano e phahameng joalo ka li-extrusion dies. -
Bophelo bo Atolositsoeng ba Sesebelisoa
Nako ea ho phomola le litšenyehelo tse fokotsehileng ka potoloho bakeng sa basebelisi ba indasteri.
Melemo ena e etsa hore AISI H12 e be tharollo e feletseng bakeng sa lisebelisoa tse sebetsang ka ho nepahala le tse boima tsa mosebetsi o chesang.
6. Litšebeliso tsa AISI H12 Hot Work Tool Steel
Ho tenyetseha ha AISI H12 ho atoloha ho pholletsa le makala a 'maloa a bohlokoa a indasteri, ho kenyeletsoa forging, die casting le extrusion.
1. Likopo tsa ho qapa
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Lerotholi forging die
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Tobetsa forging die
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Li-die tsa ho kuta tse chesang
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Hamore ea shoa
AISI H12 e thusa haholo homesebetsi e boima ea ho betla, moo bophelo le khanyetso ea tšusumetso li leng bohlokoa.
2. Likopo tsa ho Lahla Die
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Li-mold tsa ho lahla di-die-cast
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Li-pin tsa mantlha, li-insert, le matsoho
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Kamore e chesang le kamore e batang lia shoa
Bokhoni ba eona ba ho hanela ho petsoha ha mocheso bo etsa hore e be ntle bakeng sa hlobo ea ho lahla zinki, aluminium le magnesium.
3. Lisebelisoa tsa ho Ntša
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Li-die tsa extrusion tsa aluminium le koporo
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Li-liner tsa lijana
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Li-mandrel le likutu
AISI H12 e fana ka khanyetso e ntle ea ho tsofala nakong ea ho ntšoa ha litšepe tse se nang ferrous.
4. Lisebelisoa tsa Lifofane le Likoloi
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Li-die tse chesang tse etsang li-dies bakeng sa li-manifold tsa mosi
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Mefuta ea lehare la turbine
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Likarolo tsa valve le ente
5. Li-blade le Li-cutter tse Chesang
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Lithipa tse chesang tsa ho kuta
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Mahare a ho kuta bakeng sa mekoallo le li-billet tsa tšepe tse chesang haholo
Lisebelisoa tsena li bontša ho tenyetseha ha ts'ebetso ea AISI H12 le bophelo bo bolelele ba ts'ebeletso tlas'a maemo a thata a ts'ebetso.
7. Papiso: AISI H12 vs AISI H13
Leha H13 e atisa ho nkoa e le tekanyetso ea indasteri, H12 e fana ka melemo e ikhethang maemong a itseng a ts'ebeliso.
| Thepa | AISI H12 | AISI H13 |
|---|---|---|
| Khabone | 0.40% | 0.40% |
| Chromium | 5.25% | 5.25% |
| Molybdenum | 1.25% | 1.35% |
| Tungsten | 1.50% | — |
| Matla a Chesang | E babatsehang | Hantle haholo |
| Ho tiea | Holimo Haholo | Holimo |
| Ho hanyetsa ho apara | Holimo | Holimo Haholo |
| Khanyetso ea Mokhathala oa Thermal | E babatsehang | E babatsehang |
Hangata AISI H12 e khethoa hamatla a tšusumetso le ho hanyetsa mokhathala oa mochesoli bohlokoa haholo ho feta ho senyeha ha bokaholimo. Ka hona e ratoa haholo li-dies tse boima tsa forging le liforomo tse kholo tsa die-casting.
8. Ho Sebetsa ka Mechini, ho Tjhesetsa le ho Phekola Bokaholimo
Ho etsa mechini
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Tekanyetso ea ho sebetsa ka mechine: ~75% ea tšepe ea AISI 4140.
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E entsoe hantle ka mechini e nang le sebopeho se annealed ka ho sebelisa lisebelisoa tsa carbide.
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Phallo e nepahetseng ea sehatsetsi e eketsa bophelo ba sesebelisoa le boleng ba ho qeta holim'a metsi.
Ho tjheseletsa
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Futhumatsa ho fihlela ho 250–350°C.
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Ho futhumatsa kamora ho tjheseletsa ho hlokahala ho imolla kgatello ya maikutlo.
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Thepa e khothaletsoang ea ho tlatsa: motsoako o tšoanang le oa tšepe ea motheo.
Phekolo ea Bokaholimo
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Ho ntša metsi ka khasee eketsa ho thatafala ha bokaholimo le ho hanyetsa ho tsofala.
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Liaparo tsa PVDntlafatsa tshebetso bakeng sa disebediswa tsa ho lahla ka ho nepahala.
Kalafo e joalo e atolosa bophelo ba likarolo tsa AISI H12 haholo.
9. Maemo le Boholo ba Phepelo
SAKYSTELEe fana ka AISI H12 Hot Work Tool Steel ka mefuta e fapaneng le maemo a ho fana ka thepa ho fihlela litlhoko tse fapaneng tsa bareki:
| Foromo | Boemo |
|---|---|
| Libara tse chitja | E tšetsoe / e thatafalitsoeng le e halefileng |
| Libara tse bataletseng | E annealed / E entsoe esale pele |
| Lipoleiti/Liboloko | E apesitsoe kapa e entsoe ka mechini ho ea ka boholo |
| Li-billet tse entsoeng | Litekanyo tse Ikhethileng lia fumaneha |
Lihlahisoa tsohle li tla leEN 10204 3.1 Setifikeiti sa Teko sa Mill, e netefatsang sebopeho sa lik'hemik'hale le thepa ea mechini. Ha ho kopuoa, liteko tsa ultrasound (UT) le setifikeiti sa ho thatafala li ka kenyelletsoa.
10. Taolo ea Boleng le Maemo a Tlhahiso
At SAKYSTELE, sehlopha se seng le se seng sa AISI H12 se hlahlojoa ka thata ho netefatsa hore se fihlela maemo a machaba a kang:
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ASTM A681 - Lisebelisoa tsa Tšepe tsa Alloy
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DIN EN ISO 4957 – Lisebelisoa tsa Tšepe
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JIS G4404 – Lisebelisoa tsa Tšepe tsa Motsoako
Netefatso ea boleng e kenyelletsa:
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Tlhahlobo ea lik'hemik'hale
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Teko ea ho thatafala le ho tsieleha
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Ho lemoha liphoso tsa ultrasound
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Tlhahlobo ea sebopeho sa microstructure
Ka taolo e tsoetseng pele ea tšepe le lits'ebeletso tsa ho betla ka nepo,SAKYSTELEe netefatsa hore sehlahisoa se seng le se seng sa AISI H12 se fana ka ts'ebetso e ntle le botshepehi.
11. Hobaneng o lokela ho kgetha AISI H12 ho tloha SAKYSTEEL
Ha o kgetha tshepe ya sesebediswa sa mosebetsi o chesang, ho tsitsa ha thepa le boleng ba tshebetso ke senotlolo sa tshebetso.
Ke ka lebaka lena bareki lefatšeng ka bophara ba tšepangSAKYSTELE:
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Mehloli ea Tlhahiso e Tiisitsoeng– Lihlopha tse ka latelwang ka botlalo tse nang le setifikeiti sa ISO le ASTM.
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Kalafo ea Mocheso e Loketseng– Tsamaiso ea sebōpi e laoloang ho fihlela maemo a nepahetseng a thata.
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Thepa e Thehiloeng Haholo– Phepelo ea hang-hang ea boholo bo tloaelehileng bakeng sa merero ea lisebelisoa tse potlakileng.
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Tšebeletso ea Mechini e Ikhethileng– Ho seha, ho sila, le ho thatafatsa diboloko tsa CNC ho a fumaneha.
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Phihlelo ea Lefatše ka Bophara ea ho Romela Linaheng Tse Ling– Ho sebeletsa bareki makaleng a likoloi, a lifofane le a ho etsa lisebelisoa linaheng tse fetang 40.
Ka boitlamo ba ho nepahala le boleng,SAKYSTELEe itlhomile e le molekane ea tšepahalang bakeng sa litharollo tsa tšepe ea lisebelisoa liindastering tse hlokang boiteko bo bongata.
12. Malebela a Sebetsang a ho Sebelisa Lisebelisoa tsa AISI H12
Ho eketsa nako ea ts'ebetso ea sesebelisoa le ho se sebelisa:
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Kamehla futhumatsa disebediswa pele ho tshebetso e chesang.
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Qoba liphetoho tse potlakileng tsa mocheso tse bakang ho hlahlojoa ha mocheso.
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Mohatla o habeli ho ntlafatsa ho ductility.
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Kenya liphahlo tse sireletsang holim'a metsi bakeng sa lits'ebetso tse khorofo.
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Lekola litsamaiso tsa ho pholisa nakong ea ts'ebetso ea ho lahla ka tšepe.
Ho latela mekhoa ena e metle ho eketsa phaello ea matsete le ho fokotsa nako ea ho se sebetse hantle mefuteng ea tlhahiso.
13. Qetello
Sesebelisoa sa Mosebetsi se Chesang sa AISI H12ke thepa e ntle ka ho fetisisa e etselitsoeng ho mamella mocheso o matla, khatello ea maikutlo le ho taboha ha tikoloho ea ho betla le ho lahla lintho tse cheleng. Ka motsoako oa eona o ikhethang oa ho tiea, ho hanyetsa mokhathala oa mocheso le matla, e fetohile motsoako oa lejoe la motheo bakeng sa baetsi ba lisebelisoa lefatšeng ka bophara.
Ha liindasteri li ntse li phehella tlhahiso e phahameng le bophelo bo bolelele ba lisebelisoa,SAKYSTELEe ntse e tsoela pele ho fana ka lihlahisoa tsa AISI H12 tsa boemo bo holimo tse tšehetsoang ke tšehetso ea botekgeniki ea litsebi, litheko tse hlōlisanang, le bokhoni ba ho fana ka thepa lefatšeng ka bophara. Hore na u hloka li-block tse entsoeng ka maiketsetso, li-bar tsa ho nepahala, kapa li-dies tse entsoeng ka mechini,SAKYSTELEe fana ka boleng le ts'ebetso e tsitsitseng nako le nako.
Nako ea poso: Mphalane-28-2025