metallab's Recent Activity

  1. metallab replied to the thread What is your favorite crucible?.

    I have clay-graphite crucibles as well and a few Salamanders, but most just Amazon / fleabay ones which do well. Long ago (yes, in 1972...

    Dec 6, 2023 at 12:50 PM
  2. metallab replied to the thread Crucible/ladle problems.

    That also occurs when feeding the same scrap to a cupola or a waste oil furnace. Plus the dirty exhaust of these furnaces not emitted by...

    Dec 4, 2023 at 8:32 AM
  3. metallab replied to the thread Crucible/ladle problems.

    Or use propane + air. Much cleaner burn. The best is induction, but these furnaces are expensive for amateurs, but commercial foundries...

    Nov 30, 2023