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1 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Principles of the Processes.

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Presentation on theme: "1 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Principles of the Processes."— Presentation transcript:

1 1 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Principles of the Processes

2 2 Copyright  2004 Lincoln Global Inc. Bead without Filler Metal Bead with Filler Metal Principles of the OFW Process

3 3 Copyright  2004 Lincoln Global Inc. Principles of the OFC Process

4 4 Copyright  2004 Lincoln Global Inc. Which Fuel Gas? AcetyleneAcetylene Methylacetylene-propadieneMethylacetylene-propadiene MAPPMAPP PropylenePropylene PropanePropane Natural GasNatural Gas MethanMethan

5 5 Copyright  2004 Lincoln Global Inc. Fuel Gas Characteristics

6 6 Copyright  2004 Lincoln Global Inc. Fuel Gas Characteristics - continued

7 7 Copyright  2004 Lincoln Global Inc. Fuel Gas Characteristics - continued

8 8 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Equipment

9 9 Copyright  2004 Lincoln Global Inc. Oxygen Cylinder Acetylene Cylinder Flammable Shock Sensitive High Pressure Hazard Vigorously Supports Combustion Fusible Plugs Safety Disc Hollow Monolithic Porous Filler Material 1/7 th Rule Cylinders

10 10 Copyright  2004 Lincoln Global Inc. Oxygen Cylinder Valves Disc Ruptures If Pressure Goes Too High From Oxygen Cylinder Handwheel Packing Nut Lower Valve Seat Upper Valve Seat To Oxygen Regulator CGA 540

11 11 Copyright  2004 Lincoln Global Inc. Acetylene Cylinder Valves To Acetylene Regulator From Acetylene Cylinder Lower Valve Seat Packing Nut Handwheel Upper Valve Seat Seat CGA 510 CGA 300 To Acetylene Regulator From Acetylene Cylinder

12 12 Copyright  2004 Lincoln Global Inc. Acetylene Cylinder Valves - Linde (Presti-Lite) From Acetylene Cylinder To Acetylene Regulator Packing Nut Lower Valve Seat Valve Stem Upper Valve Seat Tee Wrench Tank Wrench CGA 510

13 13 Copyright  2004 Lincoln Global Inc. To Fuel Regulator Valve Relieves Excess Pressure Then Re-seats Itself Handwheel Packing Nut Upper Valve Seat Seat Lower Valve Seat Alternate Fuel Cylinder Valves CGA 510 From Fuel Regulator

14 14 Copyright  2004 Lincoln Global Inc. OFW & OFC Equipment Components Oxygen RegulatorOxygen Regulator Fuel Gas RegulatorFuel Gas Regulator Gas HosesGas Hoses Torch HandleTorch Handle MixerMixer Welding TipsWelding Tips Cutting AttachmentCutting Attachment Cutting TipsCutting Tips Filler Metal OptionalFiller Metal Optional Gas IgniterGas Igniter

15 15 Copyright  2004 Lincoln Global Inc. Oxygen Regulator Fuel Gas Regulator Regulators

16 16 Copyright  2004 Lincoln Global Inc. Combination Welding Torch with Mixer and Welding Tip OFW Equipment

17 17 Copyright  2004 Lincoln Global Inc. Straight Cutting Torch Combination Cutting Torch with Cutting Attachment OFC Equipment

18 18 Copyright  2004 Lincoln Global Inc. Torch & Cutting Valves

19 19 Copyright  2004 Lincoln Global Inc. High Turbulence Oxy/Fuel Mix Equal (Positive) Pressure Mixer Injector (Low Pressure) Mixer Oxygen Fuel Gas Oxy/Fuel Mix Fuel Gas Oxygen Mixer Design

20 20 Copyright  2004 Lincoln Global Inc. Equal (Positive) Pressure Mixer Injector (Low Pressure) Mixer Oxygen Fuel Gas Torch Head Mixer Nut Mixer Mixer Design - Continued Tip Fuel Gas Oxygen Torch Head

21 21 Copyright  2004 Lincoln Global Inc. Equal (Positive) Pressure Mixer OFC Head Mix Design

22 22 Copyright  2004 Lincoln Global Inc. Injector (Low Pressure) Mixer OFC Head Mix Design

23 23 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Regulators

24 24 Copyright  2004 Lincoln Global Inc. Which Regulator? Single Stage Regulator Use When Slight Rise in Delivery Pressure from Full to Empty Cylinder Condition Can Be ToleratedUse When Slight Rise in Delivery Pressure from Full to Empty Cylinder Condition Can Be Tolerated Two Stage Regulator Use When a Constant Delivery Pressure from Full to Empty Cylinder Condition is RequiredUse When a Constant Delivery Pressure from Full to Empty Cylinder Condition is Required

25 25 Copyright  2004 Lincoln Global Inc. Adjusting Screw Primary Spring Gas From Cylinder Bonnet Flexible Diaphragm Gas To Torch Regulator Body Secondary Spring Single Stage Regulator

26 26 Copyright  2004 Lincoln Global Inc. Secondary Spring Cylinder Pressure Gauge Regulator Body Bonnet Adjusting Screw Flexible Diaphragm Gas To Torch Working Pressure Gauge Gas From Cylinder Capsule Primary Spring Cutaway

27 27 Copyright  2004 Lincoln Global Inc. Flow Chart

28 28 Copyright  2004 Lincoln Global Inc. Gas From Cylinder Regulator Body Pre-Set First Stage Flexible Diaphragm Adjusting Screw Primary Spring Second Stage Gas To Torch Primary Spring First Stage Bonnet Adjustable Second Stage Secondary Spring Two Stage Regulator

29 29 Copyright  2004 Lincoln Global Inc. Bonnet Adjusting Screw Flexible Diaphragm Gas To Torch Primary Spring Gas From Cylinder Cylinder Pressure Gage Working Pressure Gage Primary Spring Bonnet Capsule Capsule Regulator Body Secondary Spring Cutaway

30 30 Copyright  2004 Lincoln Global Inc. Flow Chart

31 31 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding Torch Handles, Mixers, Tubes & Tips

32 32 Copyright  2004 Lincoln Global Inc. Oxygen Valve Acetylene Valve Oxygen Acetylene Mixer Mixed Gases Tip Handle OFW Torch Handles

33 33 Copyright  2004 Lincoln Global Inc. OFW Welding Tip Information

34 34 Copyright  2004 Lincoln Global Inc. OFB Brazing Tip Information

35 35 Copyright  2004 Lincoln Global Inc. 16GA Gas Air Adapter with Soldering Tip (Together) 16GA Gas Air Adapter with Soldering Tip (Separated) ½” – 20 Threads Air-Fuel Soldering Tips

36 36 Copyright  2004 Lincoln Global Inc. Air-Fuel Soldering Tip Information

37 37 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Cutting Cutting Attachments, Cutting Torches, & Tips

38 38 Copyright  2004 Lincoln Global Inc. Oxygen Cutting Lever Acetylene Cutting Valve Mixer Cutting Tip Union Nut Oxygen Valve Acetylene Valve OFC Hand Cutting Torches Combination Torch with Cutting Attachment

39 39 Copyright  2004 Lincoln Global Inc. OFC Cutting Tip Information

40 40 Copyright  2004 Lincoln Global Inc. 6290-G Gouging Tip Gouging OFC Torch Specialty Tips

41 41 Copyright  2004 Lincoln Global Inc. 6290-R Rivet Cutting Tip Rivet Cutting OFC Torch Specialty Tips Tie Down Cutting

42 42 Copyright  2004 Lincoln Global Inc. 6290-RW Rivet Washing Tip Rivet Washing OFC Torch Specialty Tips

43 43 Copyright  2004 Lincoln Global Inc. 6290-2D Thin Sheet Cutting Tip Thin Sheet Cutting OFC Torch Specialty Tips

44 44 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Heating Heating Assemblies, Tubes & Tips

45 45 Copyright  2004 Lincoln Global Inc. Heating Tubes & Tips Information

46 46 Copyright  2004 Lincoln Global Inc. Oxyfuel Gas Welding & Cutting Peripheral Equipment

47 47 Copyright  2004 Lincoln Global Inc. Check Valves for Regulators Check Valve for the Torch Check Valves

48 48 Copyright  2004 Lincoln Global Inc. Open Oxygen Check Valve Closed Oxygen Check Valve Normal Gas Flow Normal Gas Flow Oxygen Check Valve

49 49 Copyright  2004 Lincoln Global Inc. Open Acetylene Check Valve Closed Acetylene Check Valve Normal Gas Flow Acetylene Check Valve

50 50 Copyright  2004 Lincoln Global Inc. Dirty Oxygen Check Valve Dirty Acetylene Check Valve Normal Gas Flow Dirty Check Valves

51 51 Copyright  2004 Lincoln Global Inc. Flashback Arresters for Regulators Flashback Arresters for Torches Flashback Arrestors

52 52 Copyright  2004 Lincoln Global Inc. Flashback Arrestor Oxygen Flashback Arrestor Acetylene Normal Gas Flow Check Valve Flame Barrier Thermal Cut Off Normal Flow

53 53 Copyright  2004 Lincoln Global Inc. Flashback Arrestor Oxygen Reverse Flow Built In Check Valve Stops Reverse Flow of Gas(es) Normal Gas Flow Flashback Arrestor Acetylene Reverse Flow Reverse Gas Flow Reverse Flow

54 54 Copyright  2004 Lincoln Global Inc. Flashback Flame Quenched at the Flame Barrier Normal Gas Flow Flashback Arrestor Oxygen Flashback Flashback Arrestor Acetylene Flashback FLASHBAC OCCURING Flashback

55 55 Copyright  2004 Lincoln Global Inc. Quick Connectors for Regulators Quick Connectors for Torches Quick Connectors

56 56 Copyright  2004 Lincoln Global Inc. Red (Acetylene) Hose Nuts Have Left-Handed Threads “T” Grade Hose Required for all Fuels Except Acetylene Green (Oxygen) Hose Nuts Have Right-Handed Threads Hoses

57 57 Copyright  2004 Lincoln Global Inc. Acetylene (Red) Hose Nuts Have Left-Handed Threads Oxygen (Green) Hose Nuts Have Right-Handed Threads Hose Nuts

58 58 Copyright  2004 Lincoln Global Inc. OFW Pressure Drop in Hoses

59 59 Copyright  2004 Lincoln Global Inc. OFC Pressure Drop in Hoses

60 60 Copyright  2004 Lincoln Global Inc. Tank Wrench Tee Wrench Tank Wrenches

61 61 Copyright  2004 Lincoln Global Inc. Flint Lighter

62 62 Copyright  2004 Lincoln Global Inc. One Piece Tip Cleaner Two Piece


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