Liindastering tse sebetsang hantle joalo ka lifofane, ts'ebetso ea lik'hemik'hale le tlhahiso ea motlakase,Tšepe e sa ruseng ea 15-7PHe tsebahala haholo ka lebaka la eonamatla a babatsehang, ho tiea, le ho hanyetsa mafomeEmpa thepa e e khethollang e le kannete ke ea eonaphekolo ea mochesoKa ts'ebetso e laoloang ea mocheso, motsoako ona o ka fihlella mefuta e mengata ea thepa ea mechini, ho tloha ho ductility e phahameng bakeng sa ho bopa ho isa ho thata e ikhethang bakeng sa tikoloho e hlokang litšebeletso.
Sengoloa sena keSAKYSTELEe fana ka tlhaloso e tebileng eamaemo a kalafo ea mocheso a fumaneha bakeng sa tšepe e sa hloekang ea 15-7PH, ho hlalosa mekhoa, maemo a mocheso, le liphetho tsa boemo bo bong le bo bong. Hore na u moenjiniere, moetsi oa thepa, kapa setsebi sa tšepe, ho utloisisa maemo ana a kalafo ea mocheso ho tla u thusa ho khetha motsoako o nepahetseng oa ts'ebetso le mokhoa oa ho etsa bakeng sa ts'ebeliso ea hau.
1. Selelekela ho Tšepe e sa Khabeng ea 15-7PH
Tšepe e sa ruseng ea 15-7PH(UNS S17700, ASTM A693 Mofuta wa 631) ketšepe e sa hloekang ea martensitic e thatafatsang pulae nang le hoo e ka bang15% chromium, 7% nickel, le 1% aluminiumLebitso la “PH” le bolela bokgoni ba yona ba ho bakalafo ea mocheso e thatafalitsoeng ke pula.
Motsoako ona, o ntlafaditsweng e le ntlafatso e fetang 17-7PH, o fana ka matla a phahameng le botsitso bo betere ba mocheso. O ka thehwa habonolo boemong ba wona bo annealed ebe o futhumatswa ho hlahisa boima bo phahameng le matla a tlhahiso a loketseng ditshebediso tsa bohlokwa tsa sebopeho.
2. Sebopeho sa Lik'hemik'hale
| Karolo | Dikahare tse Tloaelehileng (%) | Morero |
|---|---|---|
| Chromium (Cr) | 14.0–16.0 | E fana ka khanyetso ea ts'enyeho |
| Nikele (Ni) | 6.5–7.8 | E ntlafatsa ho tiea le botsitso |
| Aluminium (Al) | 0.75–1.5 | Moemeli o ka sehloohong oa ho tiisa pula |
| Khabone (C) | ≤ 0.09 | Taolo ea matla le ho thatafala |
| Manganese (Mn) | ≤ 1.00 | E ntlafatsa matla |
| Silicone (Si) | ≤ 1.00 | E ntlafatsa khanyetso ea oxidation |
| Fosforase (P) | ≤ 0.04 | E laoloa bakeng sa ho se sebetse hantle |
| Sebabole (S) | ≤ 0.03 | E ntlafatsa bokgoni ba ho sebetsa ka mechine |
| Tšepe (Fe) | Tekanyo | Karolo ea motheo |
Motsoako oa nickel le aluminium o nolofalletsaho na ha pula ea metsoako ea Ni₃Alnakong ea botsofali, e leng se matlafatsang motsoako haholo ha se ntse se boloka matla a lekaneng.
3. Kakaretso ea Kalafo ea Mocheso
Tšepe e sa ruseng ea 15-7PH e ka fanoa le ho sebetsoa ka mekhoa e mengata ea ho futhumatsa.maemoho fihlella metswako e itseng ya matla, ho thatafala le ho ductility. Maemo a tlwaelehileng haholo ke:
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Boemo A:Tharollo e koetsoe
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Boemo RH950:Phetoho le botsofali ho tloha ho Austenite ho ea ho martensite
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Boemo TH1050:Mosebetsi o batang o lateloang ke botsofali
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Boemo RHT 900–1150:Mekhoa ea phekolo e ikhethileng ea mocheso o phahameng
Boemo bo bong le bo bong bo kenyelletsa mehato e fapaneng ea mocheso le ea mechine e etselitsoeng ho ntlafatsa thepa bakeng sa ts'ebeliso e itseng.
4. Boemo ba A - Tharollo e Annealed
4.1 Tlhaloso
Boemong bona, 15-7PH ketharollo e phekotsoenghoo e ka bang1038°C (1900°F)hora e le 'ngoe e lateloa keho pholisa moeaSebopeho se hlahang keaustenitic, e fanang ka bokgoni bo phahameng ka ho fetisisa ba ho ductility mme e dumella thepa ho bopjwa habonolo, ho hulwa ka botebo, kapa ho otlollwa hore e be sebopeho pele e tiiswa qetellong.
4.2 Litšebeliso tse Tloaelehileng
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Ho etsa le ho hatakela pampiri
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Li-bellow le li-diaphragm
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Likarolo tse hlokang sebopeho se rarahaneng pele li tsofala
4.3 Thepa ea Mekaniki (E Tloaelehileng)
| Thepa | Boleng |
|---|---|
| Matla a tšepe | 1050 MPa |
| Matla a Tekanyo | 850 MPa |
| Ho lelefatsa | 18–20% |
| Bothata | 25–30 HRC |
Boemo A ha se boemo ba ho qetela bakeng sa lits'ebetso tse ngata tsa indasteri - hangata bo lateloa ke ho sebetsa ka serame le botsofali bakeng sa matla a phahameng.
5. Boemo RH950 – Pula e tsofetse
5.1 Tlhaloso
Boemo RH950 (RH = “Kalafo ea Mocheso oa ho Fetola”) bo fihlelleha ka:
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Tharollo e sebetsanang le motsoako ho 1038°C (Boemo A).
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Ho pholisa mochesong oa kamore.
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Ho futhumatsa ho955°C (1750°F)ka hora e le 'ngoe.
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E pholisa ka potlako ho fihlela mochesong oa kamore.
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Botsofali ho510°C (950°F)ka lihora tse 4, ho lateloe ke ho pholisa moea.
Nakong ea ts'ebetso ena, sebopeho se fetoha ho tloha ho austenitic ho ea ho martensitic, 'me aluminium-nickel e etsa hore sebopeho se be matla, e leng se eketsang matla le ho thatafala haholo.
5.2 Matlotlo a Mekaniki
| Thepa | Boleng |
|---|---|
| Matla a tšepe | 1400–1450 MPa |
| Matla a Tekanyo | 1200–1300 MPa |
| Ho lelefatsa | 8–10% |
| Bothata | 42–46 HRC |
5.3 Likarolo tsa Bohlokoa
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Matla a phahameng haholo a nang le ductility e ntle
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Ho hanyetsa mokhathala hantle haholo
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Botsitso bo botle ba tekanyo
5.4 Litšebeliso tse Tloaelehileng
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Li-spring le li-fasteners
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Lisebelisoa tsa lifofane
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Likarolo tsa turbine ea motlakase
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Li-diaphragm tsa khatello e matla haholo
Boemo ke RH950boemo bo atileng haholobakeng sa 15-7PH lits'ebetsong tsa lifofane le ho nepahala.
6. Boemo TH1050 - E sebetsoang ka serame le e tsofetseng
6.1 Tlhaloso
Boemo TH1050 (TH = “Phetoho ea Phetoho ea Mocheso”) bo sebelisoa ha ho hlokahala matla a phahameng le ho feta. Bo kenyelletsa:
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Phekolo ea tharollo ho 1038°C ka hora e le 'ngoe (Boemo A).
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Phokotso ea serame ea 60–70% ho fetola austenite ho ba martensite.
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Botsofali ho565°C (1050°F)ka hora e le 'ngoe, ho latele ho phodisa moya.
6.2 Sebopeho se senyenyane
Mohato o batang oa ho sebetsa o khothalletsa phetoho e felletseng ho martensite pele e tsofala, e leng se fellang kasebopeho sa lijo-thollo tse ntle le tse tšoanangka matla a phahameng.
6.3 Thepa ea Mekaniki
| Thepa | Boleng |
|---|---|
| Matla a tšepe | 1500–1600 MPa |
| Matla a Tekanyo | 1300–1450 MPa |
| Ho lelefatsa | 6–8% |
| Bothata | 44–48 HRC |
6.4 Likarolo tsa Bohlokoa
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Matla a ka fihlellehang ka ho fetisisa bakeng sa 15-7PH
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Mokhathala o motle le ho hanyetsa ho roala
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Ho hanyetsa ho bola ho fokotsehile hanyane ha ho bapisoa le RH950
6.5 Litšebeliso tse Tloaelehileng
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Likarolo tsa sebopeho sa lifofane
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Lisepori le likarolo tsa valve tse sebetsang hantle
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Li-fasteners tse hlokang bokhoni bo phahameng ba ho jara mojaro
Boemo TH1050 bo emelaboemo ba matla a tlhorobakeng sa motsoako ona.
7. Mefuta e fapaneng ea Phekolo ea Mocheso e Ikhethileng
Ntle le RH950 le TH1050, tse lingmefuta e fapaneng ea kalafo ea mocheso e ikhethilengli fumaneha ho etsa hore thepa ea 15-7PH e tšoanelehe bakeng sa libaka tse khethehileng.
| Boemo | Mocheso (°F) | Tlhaloso | Sephetho |
|---|---|---|---|
| RHT900 | 900 | Mocheso o tlase oa botsofali | Matla a phahameng, ho ba thata ho tlase |
| RHT1000 | 1000 | Sebaka se mahareng | Matla le ho tiea ho leka-lekaneng |
| RHT1150 | 1150 | Mocheso o phahameng oa botsofali | Ho ntlafala ha ductility le khanyetso ea ts'enyeho |
Mekhoa ena ea phekolo e ka ntlafatsa ho leka-lekana ha matla a motsoako, ho thatafala ha oona le ho hanyetsa khatello le mafome ho latela tikoloho ea tšebeletso e reriloeng.
8. Papiso ea Maemo a Kalafo ea Mocheso
| Thepa | Boemo A | RH950 | TH1050 |
|---|---|---|---|
| Sebopeho | Austenitic | Martensitic + Lipula | Martensitic + Lipula |
| Matla a ho Tenyetseha (MPa) | 1050 | 1450 | 1600 |
| Boima (HRC) | 30 | 45 | 48 |
| Bokgoni ba ho sebetsa | Holimo | E itekanetseng | Tlase |
| Khanyetso ea ts'enyeho | E babatsehang | Hantle haholo | Ho lokile |
| Sebopeho | E babatsehang | E lekanyelitsoe | E lekanyelitsoe |
| Tšebeliso e Tloaelehileng | Ho theha / ho etsa | Lifofane / Lisemo | Likarolo tse boima |
Papiso ena e totobatsa kamoo mekhoa e fapaneng ea phekolo ea mocheso e etsang hore ho be bonolo ho sebelisa 15-7PH joang liindastering tse ngata.
9. Mokhoa oa ho Tiisa Metsi oa ho Fafatsa Pula ka Tšepe
Senotlolo sa matla a 15-7PH se ho thehoeng ha fineLi-precipitate tsa Ni₃AlNakong ea botsofali. Li-precipitate tsena li sebetsa e le litšitiso ho motsamao oa ho falla, e leng se eketsang matla a tlhahiso.
Tatellano ea phetoho e ka akaretsoa ka tsela ena:
Austenite → Martensite → Martensite + Ni₃Al Precipitates
Ka ho fetola mocheso le nako ea botsofali, baenjiniere ba ka laola ka nepoboholo le kaboea li-precipitate tsena, ho lokisa thatafalo le ho tiea bakeng sa ts'ebeliso e 'ngoe le e 'ngoe.
10. Litlhokomelo tsa Kalafo ea Mocheso
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Taolo ea Mocheso:Ho tsofala ho feta tekano ho feta 600°C ho ka fokotsa ho tiea ka lebaka la ho kobeha ha mapheo.
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Taolo ea Sepakapaka:Sebelisa liforo tsa khase tse se nang mokelikeli kapa tse se nang mokelikeli ho qoba ho oxidation le ho hola.
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Tsamaiso ea ho sotha:Tšehetsa likarolo tse rarahaneng ho fokotsa ho sotha nakong ea ho pholisa.
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Kamora ho Welded Botsofali:Likarolo tse tjheseditsweng boemong bo annealed di lokela ho tsofala hamorao ho tsosolosa matla.
Ho latela melao-motheo ena ka nepo ho netefatsa hore ho na le thepa e ts'oanang le ts'ebetso e tšepahalang.
11. Phello ea Kalafo ea Mocheso ho Khanyetso ea Mafome
Leha 15-7PH e fana ka khanyetso e ntle ea mafome maemong 'ohle a kalafo ea mocheso,boemo ba annealed (A)e bonts'a khanyetso e ntle ka ho fetisisa ka lebaka la sebopeho sa eona sa austenitic. Ha thatafalo e ntse e eketseha ka lebaka la botsofali, khanyetso ea mafome e fokotseha hanyane, haholo-holo libakeng tse nang le chloride.
Ho ntlafatsa tšireletso ea bokaholimo,ho se tsotelleleho bentšali khothaletsoa ka mor'a kalafo ea botsofali.
12. Mohlala oa Mokhoa oa Kalafo ea Mocheso (RH950)
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Tharollo ea Anneal:Futhumatsa ho fihlela ho 1038°C (1900°F) ka hora e le 'ngoe, moea o phole.
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Boemo ba RH Mohato:Futhumatsa ho fihlela ho 955°C (1750°F) ka hora e le 'ngoe, moea o phole.
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Ho thatafatsa Botsofali:Futhumatsa ho fihlela ho 510°C (950°F) ka lihora tse 4, u pholise moea.
Sephetho: Matla a ho thapolla ~1450 MPa, boima ba 45 HRC, bolelele ba 10%.
Tatellano ena e hlahisa motsoako o leka-lekaneng oa matla a phahameng le ho se sebetse hantle ho loketseng bakeng sa lits'ebetso tsa sefofane.
13. Likopo ho latela Maemo
| Boemo | Indasteri | Likarolo tse Tloaelehileng |
|---|---|---|
| Boemo A | Lifofane / Ho theha | Li-bellow, li-diaphragm, liliba |
| RH950 | Matla / Lik'hemik'hale | Li-valve tse nang le khatello e phahameng, litiiso tsa turbine |
| TH1050 | Lifofane / Tšireletso | Li-fasteners tsa sebopeho, li-actuator |
| RHT e Ikhethileng | Sekepe / Matla | Liboutu le masale a sa senyeheng ke ts'enyeho |
Bokhoni ba ho fetola thepa ea mechini ka kalafo ea mocheso bo etsa hore 15-7PH e be motsoako o feto-fetohang e le kannete.
14. Botsitso ba Mocheso le Meeli ea Tšebeletso
Tšepe e sa ruseng ea 15-7PH e boloka matla a matle a mechini ho fihlela ho550°C (1020°F). Ho feta moo, ho tsofala ho feta tekano ho ka fokotsa ho thatafala le ho hanyetsa mokhathala. Litšebelisong tsa cryogenic, e boloka ho tiea ho fihlela-200°C, e leng se etsang hore e lokele tšebeletso ea mocheso o phahameng le o tlase.
15. Taolo le Teko ea Boleng ho SAKYSTEEL
SAKYSTELEe sebelisa litekanyetso tse thata tsa netefatso ea boleng mohatong o mong le o mong oa kalafo ea mocheso ho netefatsa botsitso ba ts'ebetso.
Lisebelisoa tsohle ke:
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Phekolo ea mocheso holifono tsa sepakapaka tse laoloang
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E netefalitsoe kaho thatafala le teko ea ho tsikinyeha
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E hlahlobiloe bakeng saboholo ba lijo-thollo le sebopeho se senyenyane
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E fanoa kaEN 10204 3.1 / 3.2 setifikeiti
(Letšoao la SAKYSTEEL)
Bara, poleiti le terata e 'ngoe le e 'ngoe li ka latelwa ka botlalo, ho netefatsa hore lia tšepahala bakeng sa lits'ebetso tsa bohlokoa tsa indasteri.
16. SAKYSTEEL Phepelo Range bakeng sa 15-7PH
Re fana ka tšepe e sa ruseng ea 15-7PH ka mefuta le maemo a latelang:
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Libara le Lithupa tse chitja– Annealed, RH950, kapa TH1050
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Lipoleiti le Maqephe– E phekotsoe ka tharollo kapa e tsofetse
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Lithapo le Lithapo– E huloa ke serame ebile e thatafalitsoe ke pula
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Li-Forging le Masale- Mocheso o phekoloa ho latela litlhaloso tse ikhethileng
Litšebeletso tsa kalafo ea mocheso tse etselitsoeng uena le tsona lia fumaneha ho latela litlhoko tsa bareki.
17. Melemo ea ho Futhumatsoa ka Mocheso oa 15-7PH
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Karolelano e Phahameng ea Matla ho ea ho Boima
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Ho Tsitsisa ha Dimension Nakong ea Botsofali
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Bophelo bo Botle ba Mokhathala
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Matlotlo a Mekaniki a Loketseng
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Tshebetso e Tsitsitseng Dithempereichareng tse Phahameng
Litšobotsi tsena li etsa hore 15-7PH e be tharollo e loketseng bakeng sa liphephetso tse boima tsa boenjiniere liindastering tse ngata.
18. Papiso le Litšepe tse ling tse sa hloekang tsa PH
| Motsoako | Karolo ea ho thatafatsa | Matla a Phahameng (MPa) | Mocheso o Phahameng (°C) | Ho tjheseletsa |
|---|---|---|---|---|
| 15-7PH | Aluminium | 1500+ | 550 | Ho lokile |
| 17-4PH | Koporo | 1300 | 315 | E babatsehang |
| 17-7PH | Aluminium | 1300 | 425 | Ho lokile |
15-7PH e sebetsa hantle ho feta 17-4PH le 17-7PH kamatla a mocheso o phahameng le ho hanyetsa mokhathala, leha 17-4PH e ntse e le bonolo ho e tjheseletsa mme e hanela mafome haholoanyane maemong a lewatle.
19. Kakaretso ea Maemo a Kalafo ea Mocheso
| Boemo | Boemo ba Thempereichara (°C) | Sephetho sa Bohlokoa |
|---|---|---|
| A | 1038 | E koahetsoeng, e bonolo, e ka thehoa |
| RH950 | 510 | Matla a phahameng, ductility e ntle |
| TH1050 | 565 | Ho thatafala ho hoholo, ho hanyetsa mokhathala o phahameng |
| RHT900–1150 | 480–620 | Tekanyo ea matla/ho tiea e ikhethileng |
Ka ho khetha boemo bo loketseng, baqapi ba ka bapisa tshebetso ya motswako le ditlhoko tse nepahetseng tsa tshebetso.
20. Qetello
Tšepe e sa ruseng ea 15-7PHe fana ka ho tenyetseha ho ikhethang ka lebaka la maemo a eona a fapaneng a kalafo ea mocheso. Ho tloha ho bonolo, bo ka thehoangBoemo Aho ea ho matla a phahameng haholoTH1050Boemong bona, motsoako ona o ka etswa enjene ho fihlela ditlhoko tse fapaneng tsa tshebetso - ho tloha ho di-spring tsa sefofane le di-diaphragm ho ya ho dikarolo tsa turbine le dikarolo tsa di-valve.
Tse fumanehangmekhoa ea kalafo ea mocheso— RH950, TH1050, le mefuta e fapaneng ya RHT e ikgethileng — e fana ka taolo e ke keng ya lekanngwa hodima tshebetso ya mechini, e netefatsang botshepehi esita le tlasa kgatello e matla, mocheso, kapa maemo a mokhathala.
At SAKYSTELE, re fana ka thepa ea tšepe e sa ruseng ea 15-7PH e netefalitsoeng maemong 'ohle a tloaelehileng le a ikhethileng a kalafo ea mocheso, e hlahisitsoeng tlas'a maemo a thata a boleng le e tšehetsoang ke litokomane tse felletseng tsa tekheniki.
Nako ea poso: Mphalane-29-2025