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  • Users: marcus4
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  1. marcus4

    Magnifer 7904 heat treatment

    Hello. Please help me understand the detail about the "Take-out-temperature " of the soft magnetics 7904 material. I don't fully understand the therm "Service temperature" at figure 7&8 site 7 of the data sheet...
  2. marcus4

    Small sized vacuum furnace advice

    Hello, I decided to buy furnace for small in house batches. I need it for Permalloy small thin parts (transformer laminations). By search I found several manufacturers, mainly from China and they offer relaivelly cheap options (from 3-5k$) but I'm not sure about parameters I have to define. Ok...
  3. marcus4

    Ni78 soft magnetics alloy annealing

    Hello. I need small quantity parts to be annealed and wonder can I use dental vacuum furnace? Something like this: https://www.ebay.co.uk/itm/BIODENT-Keramikofen-Typ-SYSTOMAT-M-Vakuumpumpe-9887-/232481417446 Most of them are capable to reach 1200c but I'm not sure are those furnaces good enough...
  4. marcus4

    Endothermic gas atmosphere and 80Ni soft magnetic materials heat treatment

    Hi guys. I wonder is it possible to use endothermic gas instead of hydrogen atmosphere for 80Ni soft magnetic materials heat treatment? Any disandvantages?
  5. marcus4

    Mumetal grain size and magnetic properties correlation

    I have a sample of transformer laminate (mumetal) with unknown magnetic properties. My goal is to achieve the same magnetic properties with raw material that has the same chemical composition and thickness, but I ca't measure the permeability results. Is it possible to do that by comparing the...
  6. marcus4

    Soft magnetics Ni alloy

    Hi. I have a problem identifying this alloy (material) . It should be soft magnetics material made in Germany (1940-1960) . Thanks Ni-58% Fe-26.3% Cr-6.6% Cu-3.7% Mn-1.1% Al-1.2% Na-1% Si-0.7% Co-0.3%

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