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Read e-book online Audel Pipefitter's and Welder's Pocket Manual PDF

By Charles N. McConnell

ISBN-10: 0764542052

ISBN-13: 9780764542053

This little ebook is enormous on solutions

Whether you’re an apprentice within the piping trades or a professional tradesperson, you’ll locate this thoroughly revised and up-to-date consultant has solutions to the questions you’ll stumble upon at the task.

Get present, concise evidence on

  • Metrics and conversions
  • Tungsten inert fuel welding and arc welding
  • Steam heating, scorching water, refrigeration, and air con systems
  • Grooved end/plain finish piping systems
  • Process piping utilizing plastics
  • Automatic fireplace security systems
  • Terms, BTU gasoline values, abbreviations, attitude calculations, and more

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Extra resources for Audel Pipefitter's and Welder's Pocket Manual

Sample text

3-6 A chipping hammer TACK WELD ANGLE IRON SUPPORT BLOCK Fig. 3-7 Using angle iron to align pipe for welding side. A pool of melted metal will form and flow across to the other piece. Withdraw the torch and turn the pipe 180° and make a tack there. Make two more tacks midway between the first two. There are now four tacks, 90° apart, and the pipe is ready for the finish weld. 42 Pipe Welding with Oxyacetylene and Arc Forehand and Backhand Techniques Both the forehand and backhand techniques are shown in Fig.

The needle valve on the cutting head should be opened by turning the knob counterclockwise. The torch should be held at an angle as shown in Fig. 3-5 in order to bevel the pipe. When 40 Pipe Welding with Oxyacetylene and Arc Fig. 3-5 Correct position for making a beveled cut the metal is red hot, depress the cutting lever (applying oxygen at secondary gauge pressure) and move the cutting torch around the edge, rolling the pipe as the cut is made. Use a chipping hammer (Fig. 3-6) to remove any slag at the cut edge.

Shaded glass in the color range of 4 to 6 is generally used. Lighting the Torch for Welding With the welding tip mounted on the torch barrel, open the acetylene valve on the torch about one-quarter turn and immediately light the flame with a friction lighter. Never use a match! Reduce the acetylene flow by throttling the torch acetylene valve until the flame starts to produce black smoke. Then, increase acetylene flow until the smoke disappears. Open the oxygen valve slowly until a neutral flame appears.

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Audel Pipefitter's and Welder's Pocket Manual by Charles N. McConnell

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