Butt weld elbow is formed by hot forming or forging forming elbow, and its connection is the form of butt welded directly to the pipe. Butt elbow according to its radius of curvature to points, can be divided into long radius butt welding elbow and short radius elbow; Press the pressure level to points, about seventeen, and the United States is the same standard pipe, one of the most commonly used is STD and XS two; according to the angle of the elbow points, a 45-degree butt welded elbow, a 90-degree butt elbow and 180-degree butt elbow and other elbows at different angles; Materials are divided into:
carbon steel elbow, alloy steel and
stainless steel elbow.
Butt welding elbow production process
1. Select the appropriate steel, cutting, cutting out elbows model map
2. Select the appropriate mold, the pressure on the tablet, into a half-bend.
3. The two half-piece bend together, welded together.
4. Due to the presence of weld, according to the need to polish the weld, (some customers do not need grinding),
5. Testing weld, non-destructive testing, testing, filming.
