China butt weld elbow is a kind of elbow developed by welding two workpieces along the entire end face at the same time. Butt welding has high productivity and is easy to automate, so it is widely used. When many users buy China butt weld elbows, because there is no professional testing equipment, at this time, they can only test the quality of China butt weld elbows from the appearance. The following is a detailed explanation of the application range of China butt weld elbows and the judgment method of China butt weld elbows.

Several common judging methods for China butt weld elbows:
1. From the surface of China butt weld elbow, whether the manufacturing process is exquisite or not, generally speaking, a good China butt weld elbow manufacturer will be careful in production, and there will be no products with some defects. The cross-sectional shape of the welded elbow is inferior and uneven, because the manufacturer presses the two finished products down to a larger front in order to save materials, which greatly reduces the strength of the steel, but this does not meet the size standard of the welded elbow.
2. Appearance inspection of butt welding elbow welded joints is a simple and extensive inspection method, and is a very important part of finished product inspection, mainly to find defects on the surface of the weld and dimensional deviations. Generally through visual inspection, with the help of standard templates, gauges and magnifying glasses and other tools for inspection, if there is a defect on the welded surface, there may be internal welding defects.
3. To hit China butt weld elbow, if the sound is very brittle and there is an echo, choose the latest butt weld elbow instead of the recycled waste butt weld elbow.