Airco welding of locomotive fireboxes . CONTENTS Page Full-welded Fireboxes 7 Semi-welded Fireboxes 9 Semi-welded Half Side Sheets 11 Full-welded Half Side Sheet 13 Side Sheet Cracks 15 Full-welded Door and Flue Sheets 17 Patches on Firebox Sheets 19 Patches on Flue Sheets 21 Patches on Mudring 23 Door Collars . 25 Door Holes 27 Knuckle Cracks and Patches in Door and Flue Sheets 29 Building-up Worn Edges of Firebox 31 Full-welded Half Door Sheets 33 Half Door Sheets Rivetted to Side Sheets 35 Welding Steel Beams 37 Welding Various Kinds of Cracks 37 Welding Patches on Cylindrical Shells 38 Wel
Airco welding of locomotive fireboxes . CONTENTS Page Full-welded Fireboxes 7 Semi-welded Fireboxes 9 Semi-welded Half Side Sheets 11 Full-welded Half Side Sheet 13 Side Sheet Cracks 15 Full-welded Door and Flue Sheets 17 Patches on Firebox Sheets 19 Patches on Flue Sheets 21 Patches on Mudring 23 Door Collars . 25 Door Holes 27 Knuckle Cracks and Patches in Door and Flue Sheets 29 Building-up Worn Edges of Firebox 31 Full-welded Half Door Sheets 33 Half Door Sheets Rivetted to Side Sheets 35 Welding Steel Beams 37 Welding Various Kinds of Cracks 37 Welding Patches on Cylindrical Shells 38 Welding Locomotive Flues 38 General Welding in Locomotive Shop 39 Airco Service 40. Page Six e AIRCO WELDING OFFULL-WELDED FIREBOXES A FULL-WELDED FIREBOX is one which has all of its joints f-\ welded instead of rivetted. The welded joint is stronger, -*- -*- more economical, will not leak, and has more durable expansion and contraction properties than the rivetted seam. The welding should be performed as follows: Operation 1. Place the firebox upon the mudring A B A B,Figure 1, and bolt it fast. Operation 2. Prepare to weld the outside, or water side, ofsay the flanged flue sheet to the firebox, as shown at Figure 2, bycutting a bevel of about 45 degrees all the way along its edge frommudring to mudring. Now bevel the matched edge of the firebox inlike manner. The beveling should be done with an Airco cutting torchset with a No. 1 tip. The best practice is to make the flange of thflue and door sheets so as to include a row of radial ? staybolts. SeeFigure 4. Operation 3. Set the firebox so that the weld joint remainsopen at its bottom, about 3/16, Figure 3, to all
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Keywords: ., bookcentury1900, bookdecade1910, bookidaircowelding, bookyear1919
