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ʻO ke kūpaʻa ʻokiʻoki maikaʻi NiCr 70/30 no nā kaula hoʻomehana Kiʻi i hōʻike ʻia
  • ʻO ke kūpaʻa ʻokiʻoki maikaʻi NiCr 70/30 no nā kaula hoʻomehana

ʻO ke kūpaʻa ʻokiʻoki maikaʻi NiCr 70/30 no nā kaula hoʻomehana

Wehewehe Pōkole:

ʻO NiCr 70/30 (2.4658) kahi hui nickel-chromium austenitic (NiCr alloy) no ka hoʻohana ʻana i nā mahana a hiki i 1250°C. Hōʻike ʻia ka hui 70/30 e ke kū'ē kiʻekiʻe a me ke kūpaʻa oxidation maikaʻi. Loaʻa iā ia ka ductility maikaʻi ma hope o ka hoʻohana ʻana a me ka weldability maikaʻi loa.


  • Papa:NiCr 70/30
  • Nui:hiki ke hoʻopilikino ʻia
  • ʻAno:ʻAʻahu
  • Ka mahana hana kiʻekiʻe loa (°C):1250
  • Ka nui (g/cm³):8.1
  • Waiwai Makeneka:ʻaʻole

    • Nā kikoʻī huahana

    Nā nīnau i nīnau pinepine ʻia

    Nā Lepili Huahana

    Hoʻohana ʻia ʻo NiCr 70/30 (2.4658) no nā mea hoʻomehana uila kū i ka pala i loko o nā umu ʻoihana me nā lewa hoʻemi. He kūpaʻa loa ʻo Nickel Chrome 70/30 i ka oxidation i ka lewa. ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana i nā mea hoʻomehana i uhi ʻia me ka MgO, a i ʻole nā ​​​​​​noi e hoʻohana ana i nā lewa nitrogen a i ʻole carburizing.

    • nā ʻāpana uila a me nā ʻāpana uila.
    • nā mea hoʻomehana uila (hoʻohana home a me nā ʻoihana).
    • nā umu ʻoihana a hiki i 1250°C.
    • nā kaula hoʻomehana, nā moena a me nā kaula
    Papa Ni80Cr20 Ni70Cr30 Ni60Cr23 Ni60Cr15 Ni35Cr20 Karma ʻEwanohm
    Ka hoʻohui inoa% Ni Bal Bal 58.0-63.0 55.0-61.0 34.0-37.0 Bal Bal
      Cr 20.0-23.0 28.0-31.0 21.0-25.0 15.0-18.0 18.0-21.0 19.0-21.5 19.0-21.5
      Fe ≦1.0 ≦1.0 Bal Bal Bal 2.0-3.0 –
            Al1.0-1.7 Ti 0.3-0.5     Al2.7-3.2 Mn0.5-1.5 Al2.7-3.2 Cu2.0-3.0 Mn0.5-1.5
    Ka mahana hana kiʻekiʻe loa (°C) 1200 1250 1150 1150 1100 300 400
    Resisivity (Ω/cmf, 20 ℃) 1.09 1.18 1.21 1.11 1.04 1.33 1.33
    Resisivity (uΩ/m, 60°F) 655 704 727 668 626 800 800
    Ka nui (g/cm³) 8.4 8.1 8.4 8.2 7.9 8.1 8.1
    Ka Hoʻokele Wela (KJ/m·h·℃) 60.3 45.2 45.2 45.2 43.8 46.0 46.0
    Ka helu hoʻonui laina (×10¯6/℃)20-1000℃) 18.0 17.0 17.0 17.0 19.0 - -
    Kiko Heheʻe (℃) 1400 1380 1370 1390 1390 1400 1400
    Paʻakikī (Hv) 180 185 185 180 180 180 180
    Ikaika Tensile (N/mm)2 ) 750 875 800 750 750 780 780
    Hoʻolōʻihi (%) ≥20 ≥20 ≥20 ≥20 ≥20 10-20 10-20
    ʻAno Micrographic ʻaustenite ʻaustenite ʻaustenite ʻaustenite ʻaustenite ʻaustenite ʻaustenite
    Waiwai Magnetic ʻAʻole ʻAʻole ʻAʻole ʻAʻole nui ʻAʻole ʻAʻole ʻAʻole
    Ola wikiwiki (h/℃) ≥81/1200 ≥50/1250 ≥81/1200 ≥81/1200 ≥81/1200 - -

     

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