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Cutting with O/A Gas or plasma
Posted: Wed Sep 20, 2017 7:15 pm
by scotty17
Hi Folks,
When cutting with heat from Oxy Acetylene or plasma, why do some of the cuts melt back together? I'm sure it's a sign that I'm either setting the gas or machine up wrong, or operator failure.
Thanks!
Re: Cutting with O/A Gas or plasma
Posted: Wed Sep 20, 2017 7:31 pm
by weldin mike 27
I asked this very question back when I was younger. It's not actually melting back together, it's the oxide not being jetted away properly from the kerf. It's a matter of proper pressure, tip cleaning.
Re: Cutting with O/A Gas or plasma
Posted: Wed Sep 20, 2017 8:18 pm
by LtBadd
Scotty
This pic is from ESAB (Victor) cutting torch guide. Using the correct size tip, having the right gas pressures, and cutting technique will be some joy, this info is in the PDF.
- Victor cutting guide.jpg (55.23 KiB) Viewed 1961 times
This can be found
HERE PDF file will open see page 7-40
Re: Cutting with O/A Gas or plasma
Posted: Wed Sep 20, 2017 11:08 pm
by scotty17
Thank you for your help! I really appreciate it. I downloaded that PDF file to keep forever.