Flat position (1G)
In this position, you should use a method of weaving the zigzag and a half months for this type of connection can be done on both sides of penetration, but penetration can also be done on one side only. Type a flat position (1G) in the implementation is very easy. Can be used the pipe by pipe material is playing.
Horizontal position (2G)
2G welding pipe welding positions are horizontal, the tube in an upright position and welding carried horizontally around the pipe. Difficulties horizontal position welding is the welding of fluid as a result of gravity is always downward. The position of the welding electrode angle of 90 ยบ 2G pipe length of the electrode movement between 1-2 times the diameter of the electrode. If too long can lead to lack of good quality weld. Arc length as short as possible is sought ½ times the diameter of the welding electrode. For welding performed by filling a circular motion and attempted to burn well on both sides of the seam to prevent defects. This movement is repeated for the next replenishment.
Vertical position (3G)
3G position welding done on the plate material. 3G is the position held on a vertical plate and the electrode. The difficulty of welding is similar to the 2G position due to gravity fluid will always go to the bottom electrode welding.
Horizontal pipe (5G)
In the 5G welding position is divided into two, namely:
A. Welding Up
Usually performed on the pipe wall having teal because it requires high heat. Welding up the welding speed is lower than the down direction, so that the heat input per unit area is higher than the welding down. 5G welding position of the pipe is placed on a fixed horizontal position and the welding is carried out around the pipe. So good welding results, it is necessary to weld studs (tack weld) on 5-8-11 and 2 o'clock position. Start welding at 5:30 to 12:00 hours through 6 hours and then resumed with the 5:30 o'clock position at 12.00 over 3 hours. Movement of the electrode to pass root position (weld root) is a regular triangle with an arc distance of ½ times the diameter of the electrode.
2. Welding Down
Usually done on a thin pipe and oil pipelines and natural gas. The reason the use of welding down more favorable due to faster and more economical.
In this position, you should use a method of weaving the zigzag and a half months for this type of connection can be done on both sides of penetration, but penetration can also be done on one side only. Type a flat position (1G) in the implementation is very easy. Can be used the pipe by pipe material is playing.
Horizontal position (2G)
2G welding pipe welding positions are horizontal, the tube in an upright position and welding carried horizontally around the pipe. Difficulties horizontal position welding is the welding of fluid as a result of gravity is always downward. The position of the welding electrode angle of 90 ยบ 2G pipe length of the electrode movement between 1-2 times the diameter of the electrode. If too long can lead to lack of good quality weld. Arc length as short as possible is sought ½ times the diameter of the welding electrode. For welding performed by filling a circular motion and attempted to burn well on both sides of the seam to prevent defects. This movement is repeated for the next replenishment.
Vertical position (3G)
3G position welding done on the plate material. 3G is the position held on a vertical plate and the electrode. The difficulty of welding is similar to the 2G position due to gravity fluid will always go to the bottom electrode welding.
Horizontal pipe (5G)
In the 5G welding position is divided into two, namely:
A. Welding Up
Usually performed on the pipe wall having teal because it requires high heat. Welding up the welding speed is lower than the down direction, so that the heat input per unit area is higher than the welding down. 5G welding position of the pipe is placed on a fixed horizontal position and the welding is carried out around the pipe. So good welding results, it is necessary to weld studs (tack weld) on 5-8-11 and 2 o'clock position. Start welding at 5:30 to 12:00 hours through 6 hours and then resumed with the 5:30 o'clock position at 12.00 over 3 hours. Movement of the electrode to pass root position (weld root) is a regular triangle with an arc distance of ½ times the diameter of the electrode.
2. Welding Down
Usually done on a thin pipe and oil pipelines and natural gas. The reason the use of welding down more favorable due to faster and more economical.
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