L6 Tool Karfe | 1,2714 | 55NiCrMoV7 | SKT4 | BH224 / 5

L6 Tool Karfe |  1,2714 |  55NiCrMoV7 |  SKT4 |  BH224 / 5

Short Description:

A ASTM A681 misali, L6 karfe sa ne a cikin L-type ga manufa ta musamman kayan aiki steels. Aisi L6 kayan aiki karfe ne a general aji na gami, mai-hardening kayan aiki karfe cewa halin da kyau tauri. ASTM L6 kayan aiki karfe ne dace da amfani a matsayin kayan aikin, ya mutu, kuma inji sassa, wanda ya bukatar mai kyau hade da taurin da tauri. Saboda da ƙananan carbon ciki da kuma gwada da high nickel abun ciki, L6 kayan aiki karfe yana da dan kadan mafi buga-juriya fiye da more sosai alloyed daban da kuma shoul ...


  • Length: 3-5.8mm ko gyare-gyare
  • Surface: black, peeled, ko m juya
  • Heat jiyya: iska-sanyaya, bisa al'ada, annealed, Q & T
  • Smelting tsari: EAF + LF + VD
  • samfurin Detail

    samfurin Tags

    A ASTM A681 misali, L6 karfe sa ne a cikin L-type ga manufa ta musamman kayan aiki steels. Aisi L6 kayan aiki karfe
    ne a general aji na gami, mai-hardening kayan aiki karfe cewa an
    halin da kyau tauri. ASTM L6 kayan aiki karfe ne dace da amfani
    a matsayin kayan aikin, ya mutu, kuma inji sassa, wanda ya bukatar mai kyau hade da
    taurin da tauri.

    Saboda da ƙananan carbon abun ciki da kuma
    gwada da high nickel abun ciki, L6 kayan aiki karfe yana da dan kadan mafi
    buga-juriya fiye da more sosai alloyed iri da ya kamata a yi amfani da inda
    wasu lalacewa-juriya za a iya mika shi hadaya domin ya karu tauri.

    1. Relevant Karfe Musammantawa na L6 Tool Karfe

    kasar USA Jamus Japan Birtaniya
    Standard ASTM A681 DIN EN ISO 4957 Jis G4404 BS 4659
    maki L6 / T61206 1,2714 / 55NiCrMoV7 SKT4 BH224 / 5

    2. Aisi L6 Karfe Chemical Abun da ke ciki da kuma Karfe Equivalents

    ASTM A681 C mn P S Si Kr V Mo Ni
    L6 / T61206 0,65 0.75 0.25 0,80 0.03 0.03 0,10 0,50 0,60 1.20 . . . . . . . . . 0,50 1.25 2,00
    DIN ISO 4957 C mn P S Si Kr V Mo Ni
    1,2714 / 55NiCrMoV7 0,50 0,60 0,60 0,90 0.03 0.02 0,10 0.40 0,80 1.20 0.05 0,15 0,35 0,55 1.50 1.80
    Jis G4404 C mn P S Si Kr V Mo Ni
    SKT4 0,50 0,60 0,60 0,90 0.03 0.02 0,10 0.40 0,80 1.20 0.05 0,15 0,35 0,55 1.50 1.80
    BS 4659 C mn P S Si Kr V Mo Ni
    BH224 / 5 0,49 0,57 0,70 1,00 0.03 0,025 . . . 0,35 0,70 1.10 . . . . . . 0.25 0.40 1.25 1.80

    3. ASTM L6 Tool Karfe inji Properties

    Karfe L6 jiki Properties

    • Modulus na elasticity [103 x N / mm2]: 215

    • Yawa [g / cm3]: 7,84

    • Thermal watsin [W / MK]: 36,0

    • Electric resistivity [Ohm mm2 / m]: 0,30

    • Specific zafi damar [J / gK]: 0,46

    Inji Properties na L6 Steels

    Kadarorin tsarin awo na mallaka
    Poisson ta rabo 0.27- 0,30 0.27- 0,30
    na roba modulus 190-210 GPA 27557-30457 ksi

    4. Forging na L6 Tool Karfe

    Ƙirƙira a 1079 ° C (1975 F) saukar zuwa 871 ° C (1600 F). Kada ku ƙirƙira kasa 843 ° C (1550 F).

    5. Aisi L6 Tool Karfe Heat jiyya

    hardening

    Preheating:
    Heat karfe L6 a wani kudi ba wucewa 204 ° C (400 ° F) da awa daya (222 ° C da
    hour) zuwa 621-677 ° C (1150-1250 ° F) da daidaitãwa. Jiƙa tsawon minti 30 ga
    na farko inch (25.4 mm) na da kauri, da munti 15 domin kowane
    ƙarin inch (25.4 mm).

    quenching

    Ice L6 kayan aiki karfe a da man fetur zuwa 66-51 ° C (150-125 ° F).

    Tempering

    fushi
    L6 steels nan da nan bayan quenching. Rike a zazzabi for 1 hour
    da inch (25.4 mm) na kauri lokacin tempering a 204 ° C (400 ° F), 4 hours
    m, sa'an nan iska sanyi ga yanayi zazzabi.
    Duk da haka, inda ta ƙara tauri ne ake so, a yi hadaya da wasu taurin, mafi girma tempering yanayin zafi sukan yi amfani.

    Aisi L6 karfe ba ya zama gaggautsa, kamar yadda wasu mutu steels yi, a lokacin da zafin a cikin kewayon 232 ° C zuwa 426 ° C (450 to 800 ° F).

    Don
    rage girman da yiwuwar fatattaka, da karfe kamata a zafin
    nan da nan bayan hardening kuma ya kamata a mai tsanani sannu a hankali to da ake so
    tempering zazzabi.

    Annealing

    Annealing na karfe L6 dole ne a yi bayan zafi aiki da kuma kafin a sake-hardening.

    Heat
    zuwa 760 ° C (1400 ° F) da kuma rike sa'a daya da inch na matsakaicin kauri. Sa'an nan
    kwantar da hankali tare da gagarumar wuta a wani kudi ba wucewa 28 ° C awa (50 ° F
    awa) zuwa 538 ° C (1000 ° F). Ci gaba da sanyaya zuwa yanayi zazzabi a
    cikin wutar makera ko a cikin iska.

    Domin inganta machinability, rike a 760 ° C
    (1400 ° F) for 1 hour da inch (25.4mm) na matsakaicin kauri. 2 hours
    m. Sa'an nan kwantar da hankali tare da makera sanyi daga 677 ° C (1250 ° F) zuwa
    760 ° C (1400 ° F), rike for 8 hours, sa'an nan iska sanyi ga yanayi zazzabi.

    Saboda da iska-hardening ikon, karfe L6 kamata ba za a bisa al'ada.

    6. Machinability na Karfe L6

    Machinability
    na kayan aiki da karfe L6 yana da kyau qwarai. Yana rates 90% na machinability na
    W-kungiya ruwa hardening low gami steels rated 100% a matsayin baseline.

    7. Aikace-aikace na ASTM A681 L6 Tool Karfe

    Aisi
    L6 sanyi aiki kayan aiki karfe ne ga general nufi kayan aikin, kuma ya mutu a inda
    mafi girma tauri ake bukata, amma tare da wasu hadayar
    abrasion-juriya.

    Yawanci amfani da kasa aikace-aikace:

    • spindles,

    • ulla Rolls,

    • punches,

    • blanking da kuma kafa mutu,

    • trimmer mutu,

    • kama sassa,

    • pawls,

    • bearings,

    • chucks sassa,

    • rollers,

    • gaɓar yatsa fil,

    • kama fil,

    • karfi ruwan wukake


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