Adjusting gas welding flame

When igniting, acetylene should be turned on first, and then oxygen should be turned on; Cease fire, turn off acetylene first and then oxygen.

According to the requirements of safe operation, acetylene should be turned on first, then ignited, and the oxygen adjusting handwheel should be turned on immediately to adjust the flame. This ignition method can avoid the deflagration phenomenon during ignition, and it is easy to find whether the welding torch is blocked, the flame changes from weak to strong, and the flame burns smoothly.

When the flame stops using, the acetylene adjusting handwheel should be turned off first to prevent backfire and black smoke.