WELDING ROLLED PIPE IN THE 1G POSITION EFFICIENTLY

摘要

WELDING rolled pipe in the 1G position is standard practice in industries that require endless lengths of pipe for pumping large amounts of liquid, such as petrochemical plants and high-rise construction. This type of pipe welding involves setting a pipe horizontally, in the 1G position, on n rotating table that rolls the pipe in place. The welder then holds or fixes a torch at a 90-degree angle to the ground and at the 1 o'clock position in the joint that connects the pipe to either another pipe or a fitting (see Figure 1). While solid wire is the most commonly used consumable for this application, metal-cored wire is another viable option.