[Jewelry making - Article 00705] - Re: [Orchid] Selecting appropriate torch tips

[H. D. (Del) Pearson]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

Lisa,

    I have not tried using the #3 tip with propane. The Smith
    instruction manual is kind of "iffy" about it. In one place they
    state categorically that the #1 and #2 tips "are NOT used for gas
    other than acetylene or hydrogen." That would lead one to believe
    that the #3 tip is okay for propane. However, on the chart they state
    that the #3 tip is recommended for use with acetyline & hydrogen.
    Propane is first mentioned for the #4 tip. How's that for confusion?
    It would make me tend to think that the #3 tip is marginal at best
    when used with propane. 

    As for gas pressures, I use the "rule of thumb" that both gases
    should be approximately equal to the tip designation. For a #3 tip I
    use 3 psi acetylene and 3 psi oxygen. The pressures are not gas
    specific. You would use the same for propane, hydrogen, propylene,
    Mapp, and natural gas. It may be that the force of the oxygen at 5-7
    psi is actually blowing the flame out. You might also check to see if
    there is any obstruction in the tip. Let us know what you find when
    you reduce the oxygen to 3 psi. 

Del Pearson at Designs of Eagle Creek in Beautiful South Texas.
http://www.eaglecreekcs.com/

____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________