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Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy Featured Image
  • Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy
  • Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy
  • Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy
  • Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy

Low Expansion Alloy Kovar 4j29 Wire, 29HK Wire yeGlass Sealing Alloy

Tsanangudzo Pfupi:

Alloy-4J29 (Kuwedzera alloy)
(Zita rakajairika: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
Alloy-4J29 inozivikanwawo seKovar alloy.rakagadzirwa kuti rizadzise kudiwa kwechisimbiso chegirazi-kusimbi chinovimbika, chinodiwa mumidziyo yemagetsi yakadai semagirobhu emwenje, machubhu evacuum, machubhu ecathode ray, uye mumagadzirirwo evacuum mukemesitiri nokumwe kutsvakurudza kwesayenzi.Masimbi mazhinji haakwanise kuvharira girazi nekuti coefficient yavo yekuwedzera kupisa haina kufanana negirazi, saka iyo joint inotonhorera mushure mekugadzira kushushikana nekuda kwekusiyana kwekuwedzera kwegirazi nesimbi kunoita kuti mubatanidzwa utsemuka.


  • Muenzaniso NO.:Kovar
  • OEM:Ehe
  • Nyika:Yakapfava 1/2 yakaoma yakaoma T-yakaoma
  • HS Kodhi:74099000
  • KwakabvaChina

    • Product Detail

    FAQ

    Product Tags

    Alloy-4J29 haingove nekuwedzera kwekushisa kwakafanana negirazi, asi iyo isina mutsara yekuwedzera inopisa curve inogona kazhinji kuitwa kuti ienderane negirazi, zvichiita kuti chibatanidzi chikwanise kushivirira huwandu hwekushisa.Kemikari, inosungira kugirazi kuburikidza nepakati oxide layer ye nickel oxide uye cobalt oxide;chikamu chesimbi oxide chakaderera nekuda kwekuderedzwa kwayo necobalt.Kusimba kwechisungo kunoenderana zvakanyanya neiyo oxide layer ukobvu uye hunhu.Kuvapo kwecobalt kunoita kuti iyo oxide layer iite nyore kunyunguduka uye kunyungudika mugirazi rakanyungudutswa.Iro grey, grey-blue kana grey-brown ruvara runoratidza chisimbiso chakanaka.Rudzi rwesimbi runoratidza kushaikwa kweokisidhi, nepo ruvara rutema runoratidza simbi yakanyanyisa oxidized, mune zvese zviri zviviri zvinotungamira kune isina kusimba majoini.

    Application:Inonyanya kushandiswa mumagetsi vacuum zvikamu uye emission control, shock chubhu, igniting chubhu, girazi magnetron, transistors, chisimbiso plug, relay, akasanganiswa maseketi lead, chassis, mabhureki uye kumwe kuvhara kwedzimba.


    Zvakajairwa

    Ni 28.5~29.5 Fe Bal. Co 16.8~17.8 Si ≤0.3
    Mo ≤0.2 Cu ≤0.2 Cr ≤0.2 Mn ≤0.5
    C ≤0.03 P ≤0.02 S ≤0.02

    Kusimba Simba, MPa

    Code of condition Condition Waya Strip
    R Soft ≤585 ≤570
    1/4I 1/4 Zvakaoma 585~725 520~630
    1/2I 1/2 Zvakaoma 655~795 590~700
    3/4I 3/4 Zvakaoma 725~860 600~770
    I Zvakaoma ≥850 ≥700

     

    Typical Physical properties

    Density (g/cm3) 8.2
    Kuramba kwemagetsi pa20ºC(Ωmm2/m) 0.48
    Tembiricha yekudzivirira (20ºC~100ºC)X10-5/ºC 3.7~3.9
    Curie point Tc/ ºC 430
    Elastic Modulus, E/Gpa 138

    Coefficient yekuwedzera

    θ/ºC α1/10-6ºC-1 θ/ºC α1/10-6ºC-1
    20~60 7.8 20~500 6.2
    20~100 6.4 20~550 7.1
    20-200 5.9 20~600 7.8
    20~300 5.3 20~700 9.2
    20~400 5.1 20~800 10.2
    20~450 5.3 20~900 11.4

    Thermal conductivity

    θ/ºC 100 200 300 400 500
    λ/ W/(m*ºC) 20.6 21.5 22.7 23.7 25.4

     

    Nzira yekurapa kupisa
    Annealing yekubvisa stress Kupisa kusvika 470 ~ 540ºC uye kubata 1 ~ 2 h.Kutonhora pasi
    annealing Muvacuum inopisa kusvika 750 ~ 900ºC
    Kubata nguva 14 min~1h.
    Chiyero chekutonhora Hapana kupfuura 10 ºC/min yakatonhodzwa kusvika ku200 ºC




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