Hello fellow Welders. Ok here’s my question. The other evening I had was at a local welding shop and a fellow was using an H frame press to punch out a shaft in a part and it wasn’t moving so he wheeled over the acetylene torch attached the rose bud to heat the part in the press. While doing so he bumped the torch against the part ( which happens ) and out went the torch and right away a flash back started. Pop Pop pop etc and the torch just above the handle began to turn orange. I yelled for him to shut the torch down. Once done the flash back stopped. I was looking at his setting and noticed he was running 45 psi oxygen and 10 lbs of acetylene. From what I remember is the a rose bud is to operate on equal pressure. Such as 8 and 8. If I’m correct by operating at the 10 lbs acetylene and 45lbs oxygen would be way to rich oxygen which would cause the head of mixer to become extremely hot which can cause the flash back. Let me know if I’m correct or full of Shxx%% T. Thanks in advance.
