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Ts'ebetso ea Premium: Alloy ea Nickel 17-4PH / 17-7PH

Tšepe e Khethehileng e se nang Mokelikeli

Notlolla bokhoni ba lits'ebetso tsa hau ka lisebelisoa tsa rona tsa nickel tse sebetsang hantle haholo, 17-4PH le 17-7PH. E etselitsoe ho fana ka matla a ikhethang, ho hanyetsa kutu, le ho tšoarella, li-alloys tsena ke motheo oa tharollo ea boenjiniere e tsoetseng pele. Ka sebopeho se nepahetseng sa metallurgical le kalafo ea mocheso, li-alloys tsa rona li bonts'a thepa e phahameng ea mochini, e li etsang hore e be tse loketseng bakeng sa lits'ebetso tse hlokahalang sebakeng sa sefofane, sa metsing, sa likoloi le liindasteri tse ling. Ho tloha ho likarolo tsa bohlokoa meahong ea lifofane ho isa lisebelisoa tse nepahetseng tsa bongaka, li-alloys tsa rona tsa nickel li fana ka ts'epo le ts'ebetso e ke keng ea lekanngoa. Tšepa bokhabane bo netefalitsoeng ba li-alloys tsa 17-4PH le 17-7PH ho phahamisetsa merero ea hau maemong a macha a katleho.

    MOTS'EOA CHEMEKE

    SEBAKA

    %

    C

    Le

    Mong

    P

    S

    Ho

    Kr

    Ka

    Nb

    Al

    17-4PH

    MIN

    -

    -

    -

    -

    -

    3.0

    15.0

    3.0

    0.15

    -

    MAX

    0.07

    1.0

    1.0

    0.04

    0.03

    5.0

    17.5

    5.0

    0.45

    -

    17-7PH

    MIN

    -

    -

    -

    -

    -

    6.5

    16.0

    -

    -

    0.75

    MAX

    0.09

    1.0

    1.0

    0.04

    0.03

    7.75

    18.0

    -

    -

    1.5

    Lintho Tsa 'Mele

    Mohlala

    17-4PH

    17-7PH

    Botenya

    7.85g/cm3

    7.85g/cm3

    Sebaka se qhibilihang

    1404-1440 ℃

    1404-1440 ℃

    Sehlahisoa SEHLOOHO

    17-4PH ke pula ea chromium-nickel-copper e thatafatsang tšepe e sa hloekang ea martensitic. Sehlopha sena sa tšepe e sa hloekang se khetholloa ke matla a phahameng, ho thatafala le ho hanyetsa kutu. Thepa ea mechine e ntlafatsoa ke mocheso Kalafo le matla a khatello ea ho fihla ho 1100-1300 MPa (160-190 ksi) e ka finyelloa. Kereiti ena e ke ke ea sebelisoa mochesong o ka holimo ho 300°C (572°F) kapa mochesong o tlaase haholo. E na le khanyetso e ntle ea kutu ho sepakapaka le ho hlapolla acid kapa letsoai, 'me khanyetso ea eona ea kutu e tšoana le ea 304.

    17-7PH ke austenitic-martensitic precipitation e thatafatsa tšepe e sa hloekang e entsoeng motheong oa 18-8CrNi, e tsejoang hape e le karolo e laoloang ea phetoho ea tšepe e sa hloekang. 17-7PH tšepe e sa tsitsang ke mokhatlo o sa tsitsang oa austenitic ka mor'a tharollo e tiileng ea Kalafo, e nang le toughness e ntle ea polasetiki le machinability, ka mor'a hore tempering, e le hore pula ea austenite ea carbides ka mor'a phetoho ea ho hlophisoa, 'me joale ka ts'ebetso ea phetoho ea martensitic, boholo ba mokhatlo o fetoha mokhoa o fokolang oa carbon tempering o nang le toughness e ntle. Ka mor'a ho halefisa, motsoako oa austenite precipitation carbide o fetoha, 'me ka mor'a ts'ebetso ea phetoho ea martensitic, boholo ba mokhatlo o fetoha martensite e nang le carbon tempered martensite e nang le boima bo botle,' me e na le thepa e ntle ea mochine mocheso o bohareng. 17-7PH ho hanyetsa kutu ho molemo ho feta tšepe e sa hloekang ea martensitic.

    Pontšo ea Sehlahisoa

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