Phapang ke efe pakeng tsa 17-4PH le Litšepe tse ling tse thatafatsang pula (PH)?

Phapang ke efe pakeng tsa 17-4PH le Litšepe tse ling tse thatafatsang pula (PH)?

Selelekela

Litšepe tse sa hloekang tse thatafatsang pula (litšepe tsa PH) ke sehlopha sa metsoako e sa senyeheng mafome e kopanyang matla a litšepe tsa martensitic le austenitic le khanyetso e ntle ea mafome. Har'a tsona,Tšepe e sa ruseng ea 17-4PHHo ka etsahala hore ebe ke eona e sebelisoang haholo ka lebaka la litšobotsi tsa eona tse ikhethang tsa mechini le bonolo ba ho e etsa. Empa e bapisoa joang le mefuta e meng ea PH e kang 15-5PH, 13-8Mo, 17-7PH, le Custom 465? Sengoloa sena se teba ka botebo liphapang tsa sebopeho, kalafo ea mocheso, litšobotsi tsa mechini, ho hanyetsa ho bola le lits'ebetso.

Kakaretso ea Litšepe tse sa Khaotseng tsa Pula

Litšepe tse thatafatsang pula li fumana matla a tsona ka lebaka la ho thehoa ha li-precipitate tse tšesaane ka har'a matrix ea tšepe nakong ea kalafo ea mocheso ea botsofali. Litšepe tsena li arotsoe ka mekhahlelo e meraro e meholo:

1. Litšepe tsa PH tsa Martensitic(mohlala,17-4PH, 15-5PH)
2. Litšepe tsa PH tse semi-austenitic(mohlala, 17-7PH)
3. Litšepe tsa Austenitic PH(mohlala, A286)

Sehlopha se seng le se seng se fana ka motsoako o ikhethang oa thepa e etselitsoeng litlhoko tse itseng tsa indasteri.

17-4PH (UNS S17400): Tekanyetso ea Indasteri

Sebopeho:

• Cr: 15.0–17.5%
• Ni: 3.0–5.0%
• Cu: 3.0–5.0%
• Nb (Cb): 0.15–0.45%

Kalafo ea Mocheso: E phekotsoe ka tharollo le ho tsofala (hangata H900 ho isa ho H1150-M)

Matlotlo a Mekaniki (H900):

• Matla a ho Thabisa: 1310 MPa
• Matla a Tlhahiso: 1170 MPa
• Ho lelefatsa: 10%
• Boima: ~44 HRC

Melemo:

• Matla a phahameng
• Ho hanyetsa ho ts'enyeha ho itekanetseng
• Ho sebetsa hantle ha mechini
• E ka kopanngoa

Likopo:

• Likarolo tsa lifofane
• Li-reactor tsa nyutlelie
• Li-valve, li-shaft, li-fasteners

Papiso le Litšepe tse ling tse sa hloekang tsa PH

15-5PH (UNS S15500)

Sebopeho:

• E tšoana le 17-4PH, empa e na le taolo e thata holim'a litšila
• Cr: 14.0–15.5%
• Ni: 3.5–5.5%
• Cu: 2.5–4.5%

Liphapang tsa Bohlokoa:

• Ho ba thata ho feta tekano ka lebaka la sebopeho se senyenyane sa microstructure
• Thepa e ntlafalitsoeng ea mechini likarolong tse teteaneng

Linyeoe tsa Tšebeliso:

• Lithuso tsa lifofane
• Lisebelisoa tsa ho sebetsana le lik'hemik'hale

13-8Mots (UNS S13800)

Sebopeho:

• Cr: 12.25–13.25%
• Ni: 7.5–8.5%
• Khoeli: 2.0–2.5%

Liphapang tsa Bohlokoa:

• Ho ba thata haholo le ho hanyetsa mafome
• Matla a phahameng likarolong tse teteaneng
• Litaolo tse thata tsa sebopeho bakeng sa ts'ebeliso ea lifofane

Linyeoe tsa Tšebeliso:

• Likarolo tsa sebopeho sa lifofane
• Lisepori tse sebetsang hantle

17-7PH (UNS S17700)

Sebopeho:

• Cr: 16.0–18.0%
• Ni: 6.5–7.75%
• Kakaretso: 0.75–1.50%

Liphapang tsa Bohlokoa:

• Semi-austenitic; e hloka mosebetsi o batang le kalafo ea mocheso
• Ho ba le sebopeho se betere empa ho hanyetsa ho ts'enyeho ho tlase ho feta 17-4PH

Linyeoe tsa Tšebeliso:

• Li-diaphragm tsa lifofane
• Li-bellow
• Li-Springs

465 e Ikhethileng (UNS S46500)

Sebopeho:

• Cr: 11.0–13.0%
• Ni: 10.75–11.25%
• Tekanyo: 1.5–2.0%
• Khoeli: 0.75–1.25%

Liphapang tsa Bohlokoa:

• Matla a phahameng haholo (ho fihlela ho 200 ksi tensile)
• Ho tiea ho babatsehang ha ho robeha
• Litšenyehelo tse holimo

Linyeoe tsa Tšebeliso:

• Lisebelisoa tsa ho buoa
• Lifaene tsa lifofane
• Likarolo tsa lisebelisoa tsa ho lulisa

Papiso ea Phekolo ea Mocheso

Papiso ea Khanyetso ea Ts'enyeho

• Molemohali:13-8Mo le Custom 465
• E ntle:17-4PH le 15-5PH
• Toka:17-7PH

Hlokomela: Ha ho le e 'ngoe e lekanang le khanyetso ea ho bola ea limaraka tse felletseng tsa austenitic joalo ka 316L.

Ho sebetsa ka thata le ho weldable

Tlhokomelo ea Litšenyehelo

• E theko e tlaase haholo:17-4PH
• Likereiti tsa Premium:13-8Mo le Custom 465
• E leka-lekaneng:15-5PH

Papiso ea Likopo

Kakaretso

Qetello

Leha 17-4PH e ntse e le tšepe e sa ruseng ea PH e sebelisoang haholo bakeng sa lits'ebetso tse ngata tsa merero e akaretsang, sehlopha se seng le se seng sa PH se na le melemo e ikhethang e etsang hore e tšoanelehe hamolemo bakeng sa litlhoko tse itseng. Ho utloisisa lintlha tse fapaneng lipakeng tsa li-alloy tsena ho nolofalletsa baenjiniere ba thepa le bareki ho etsa liqeto tse nang le tsebo ho latela matla, ho tiea, ho hanyetsa mafome le litšenyehelo.