Download presentation
Presentation is loading. Please wait.
1
Proper Procedures for Oxyacetylene Processes
2
Oxy-fuel Oxy-fuel combines pure oxygen which will not burn until combined with a combustible fuel gas such as acetylene, propylene, or propane
5
Acetylene Acetylene is the combustible fuel used by most agricultural mechanics
7
Heat Heat from the oxy-fuel process is used to cut or weld and to heat for bending, shaping and tempering metal
8
Safety Use soapy water to check lines, valves, and soft plugs for leaks
10
Safety Acetylene pressure should NOT be more than 15 pounds per square inch (psi)
12
Safety The acetylene cylinder tank valve should be opened ¼ to ½ turn for use
13
Blow Dust Oxygen and acetylene cylinders should be turned on and off quickly before attaching regulators to blow dust from openings
14
Safety Caps on tanks should be screwed on
16
Safety When the oxyacetylene unit is NOT in use, the regulator adjusting screw should be screwed out all the way until it is loose
18
Safety Oxygen and acetylene tanks should be upright and chained when transported
19
Safety Use only a spark lighter (torch lighter) to light a torch
21
Safety Do not use cigarette lighter or matches to light torch or to check for leaks
23
Types of Flames When first lit, the flame has excess acetylene and is a carbonizing flame
24
Types of Flames Oxygen is added to produce a neutral flame used for heating, cutting and welding
25
Types of Flames When first lit, the flame has excess acetylene and is a carbonizing flame
26
Types of Flames Adding extra oxygen makes an oxidizing flame which is the hottest flame used for special applications
28
Welding Tips Welding tips have only one orifice (hole) where oxygen and acetylene combine to make the flame at the tip
30
Cutting Torch Cutting torch has an oxygen-cutting lever, to blow metal from the cut and a tip with more than one orifice (hole)
33
Cutting Torch The center hole is the cutting orifice, and the holes around the center hole are the preheat orifices
34
Hand Tightened When cutting and welding tips are attached to the torch body, they should be hand tightened
35
Torch Lighter The safe way to light either the welding or the cutting torch is to use a torch lighter, NOT a match or a cigarette lighter
36
Backfire Touching the tip to metal when cutting may cause backfire
37
Tip Cleaners Tip cleaners are used to remove metal spatter from the holes in cutting and welding tips Use right size
39
Puddle Width A uniform puddle width usually indicates correct oxyacetylene welding speed and correct torch height
40
90 degrees The correct angle between the torch tip and metal to cut thick metal with the oxyacetylene torch is 90 degrees
41
Correct Cut A correct cut with the oxyacetylene cutting torch will have a square top and bottom edge and slightly curved drag lines
42
Rough Cut If speed is too fast, oxygen pressure too low or too high, or too much acetylene is used, the cut will be rough
43
Proper Procedures for Oxyacetylene Processes
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.