Gas forge and venturi principles?

C

cjweaver13

Joined
Jun 19, 2018
Messages
43
Hey all, new user here. I am just making myself finally get into bladesmithing after prolonged interest and am in the process of making my first gas forge and burner.

The plan is to use 1-1/2 > 3/4" reducer with 8 or 9" 3/4" tube, with 3/4" -> 1" expander on end. Also will be using .03 mig tip for nozzle. After watching the linked video, what would be gained or lost by adding additional reducer for a couple inches, and/or adding another hole maybe 6mm somewhere along 3/4" pipe, theory being thinning out fuel mixture at flame end?

 
cjweaver13 said:
Hey all, new user here. I am just making myself finally get into bladesmithing after prolonged interest and am in the process of making my first gas forge and burner.

The plan is to use 1-1/2 > 3/4" reducer with 8 or 9" 3/4" tube, with 3/4" -> 1" expander on end. Also will be using .03 mig tip for nozzle. After watching the linked video, what would be gained or lost by adding additional reducer for a couple inches, and/or adding another hole maybe 6mm somewhere along 3/4" pipe, theory being thinning out fuel mixture at flame end?

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Welcome!
You should ask this question here: https://bladeforums.com/forums/shop-talk-bladesmith-questions-and-answers.741/
 
Yeah most of the smart people are over in the shop talk section. I never venture there.
 
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