annealing aluminum with a plumbers torch - Page 2
Close
Login to Your Account
Page 2 of 2 FirstFirst 12
Results 21 to 27 of 27
  1. #21
    Join Date
    Mar 2009
    Location
    Eureka, CA
    Posts
    4,307
    Post Thanks / Like
    Likes (Given)
    995
    Likes (Received)
    1702

    Default

    Quote Originally Posted by Scottl View Post
    Annealing with a torch may or may not work. The trick to hot bend aluminum is not to overheat it because there is no color change to guide us. An old timer's trick is to take a small piece of Eastern white pine and rub it on the aluminum as you heat it. When it leaves a black smear the aluminum is at the right temperature for safe bending. I've straightened a lot of stuff that way, especially when I rode off-road motorcycles. Straightening bent levers and pedals often got the bike back in service while waiting for replacement parts to come in. After replacing the parts I usually kept the straightened parts for emergency spares.
    It's especially handy when your off-road motorcycle crashes head on into an eastern white pine and bends shit..the handy pitch is..uh, at hand.

    Stuart

  2. #22
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    8,424
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1594

    Default

    Realise that very little soap is sold in stores today. Soap is made from tallow which is rendered fat. Most 'soap" today is a petroleum base waxy substance or soybean based. There is a reason it is called laundry detergent not laundry soap. Or dish washing liquid not dish soap.
    I suppose any of these products will have various char temperatures.
    Many here are confusing heat with temperature. a real plumbers torch, running on gasoline, will have much more heat energy then most propane or even acetlyene torches. But a gasoline torch runs cooler. it can can not melt iron to weld.
    Bil lD

  3. #23
    Join Date
    Feb 2010
    Location
    ch
    Posts
    3,130
    Post Thanks / Like
    Likes (Given)
    258
    Likes (Received)
    431

    Default

    so you have seen a propane torch melt iron (mild steel)?

  4. #24
    Join Date
    Dec 2008
    Location
    Portsmouth, England
    Posts
    927
    Post Thanks / Like
    Likes (Given)
    314
    Likes (Received)
    601

    Default

    Quote Originally Posted by boslab View Post
    Rub with white soap bar, heat till it blackens the old fashioned way!
    Mark
    Sorry limy,and others poor reading skills must be the CoViD
    That's OK, Mark. Did you learn the trick at secondary school like Sami and I did?

    George B.

  5. #25
    Join Date
    Dec 2008
    Location
    Portsmouth, England
    Posts
    927
    Post Thanks / Like
    Likes (Given)
    314
    Likes (Received)
    601

    Default

    Quote Originally Posted by Bill D View Post
    ...
    Soap is made from tallow which is rendered fat. Most 'soap" today is a petroleum base waxy substance or soybean based.
    Bill, I can't answer for the US but here in the UK there are still plenty of traditional soaps available. I use a plain vegetable soap at home from the local supermarket, so when I need a marker for annealing I just borrow the soap from the bathroom.

    George B.

  6. #26
    Join Date
    Nov 2013
    Location
    Eastern Massachusetts, USA
    Posts
    6,838
    Post Thanks / Like
    Likes (Given)
    5855
    Likes (Received)
    6246

    Default

    Quote Originally Posted by Georgineer View Post
    Bill, I can't answer for the US but here in the UK there are still plenty of traditional soaps available. I use a plain vegetable soap at home from the local supermarket, so when I need a marker for annealing I just borrow the soap from the bathroom.

    George B.
    I've also used high quality soap as an anti-scale when heat treating tool steel with a torch.

  7. #27
    Join Date
    Apr 2004
    Location
    Modesto, CA USA
    Posts
    8,424
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1594

    Default

    I have no idea on how common real soap is. Just wantted to let readers know that at least some soap is not soap. As they say results may vary.
    Bil lD


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •