By James E. Brumbaugh
That includes up to date charts facing the commonest occasions welding staff face at the task , this accomplished, pocket-sized reference is predicated on techniques from operating pros and covers welding symbols and definitions, sorts of joints and welds, common welding station configurations, oxygen cylinders, arc-welding charts, U.S metric measures, and extra.
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Extra resources for Audel Welding Pocket Reference
Same as for backfire or popping sound. Same as for backfire or popping sound. Squealing sound (resulting from a very rapid series of small explosions after the torch is lit). Flashback (recession of flame into or in back of the torch mixing chamber). Suggested Remedy Possible Cause Problem Table 2-7 (continued) 45 Oxide inclusions (indicated by black specks on the broken surfaces of the weld). Holes in the joint at the end of the weld. Uneven weld (incomplete penetration; good penetration in spots and partial penetration in between).
Then promptly close the needle valves. 3. Release the adjusting screws on the pressure regulators by turning them to the left. 38 2. Oxyacetylene Welding 4. Disconnect the hoses from the torch. 5. Disconnect the hoses from the regulators. 6. Remove the regulators from the cylinders and replace the protective caps on the cylinders. OXYACETYLENE WELDING METHODS The two basic methods of running a weld bead are the forehand welding method and the backhand welding method. They differ according to whether the torch tip is pointed in the direction of the weld bead or back toward the welded seam.
11. Repeat Steps 9 and 10 for the acetylene regulator and hose. 32 2. Oxyacetylene Welding 12. Connect the oxygen hose to the oxygen needle valve on the torch, and connect the acetylene hose to the acetylene needle valve. Again, the oxygen hose has a right-hand thread, whereas the acetylene hose has a left-hand one. 13. Close the welding torch needle valves and open the oxygen and acetylene cylinder valves. Adjust the regulators for a normal working pressure and check for leaks at all the connections, using soap and water.
Audel Welding Pocket Reference by James E. Brumbaugh