What should be paid attention to in the production of oil casing with a welding pipe unit?
Publish time:
2021-11-09
The application of this equipment in daily production is very common, and the use of pipe welding units to produce oil casing has also become a trend, which is mainly inseparable from the advantages of pipe welding units.
This type of equipment is commonly used in daily production, and the use of welding pipe units to produce oil casing has also become a trend, which is mainly inseparable from the advantages of welding pipe units. Generally speaking, oil casing can be produced using hot-rolled seamless steel pipes, or it can be produced by welding with a welding pipe unit. The use of welding pipe units is more common in daily life. Because welded oil casing has a weld seam, problems such as matching toughness between the base material and the weld seam, weld seam gray spots, and groove-shaped corrosion of the weld seam need to be solved. When welding oil casing, attention should be paid to avoiding the above problems.
So what should be paid attention to when using a welding pipe unit to produce oil casing? When using a welding pipe unit to produce oil casing, attention should be paid to toughness. The welding pipe unit can control cooling after hot tension reduction, which can greatly improve the weld seam problem of welded oil casing and enhance its toughness. The chemical composition of the welding base material, welding temperature, and welding speed are the main factors affecting weld seam gray spots. To avoid weld seam gray spots, it is necessary to strictly control the quality of the strip edge and the welding process. Methods such as weld heat treatment and full-pipe heating before hot tension reduction can be used to reduce and avoid the appearance of weld seam gray spots. Groove-shaped corrosion of the weld seam can be avoided by using the hot tension reduction method.
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