Pipe Welding Procedures Horizontal Pipe Welding Rolled Weld (1) Align the joint and tack weld or hold in position with steel bridge clamps with the pipe mounted on suitable rollers (fig. 12-42). Start welding at point C, figure 12-42, progressing upward to point B. When B is reached, rotate the pipe clockwise until the stopping point of the weld is
Read more →Pipe Welding Process Pipe Welding : General The most commonly used processes for joining pipe are the manual oxyacetylene process and manual shielded metal-arc process. Automatic and semiautomatic submerged arc, inert gas metal-arc, and atomic hydrogen welding are also used. particularly in shop operations. The manual shielded metal-arc process may be used for welding all metals used in piping systems,
Read more →Pipe Welding : Making Templates a. General. A template pattern is useful when cutting pipe for a 90 degree bend or other types of joints, such as a tee joint. b. Material. The material necessary for making a template pattern consists of a ruler, a straight-edge, a compass, an angle, a piece of heavy paper, and a pencil. c. Preparation
Read more →Pipe Welding Pipe welding involves the welding of pipe for the handling of oil, gases, water, and other substances, the operating conditions of which range from high vacuum to pressure of several thousand pounds per square inch. Mechanical joints are not satisfactory for many of these services. Electric arc or oxyacetylene welding provide effective joints in these services and also
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