Three-piece set of high-frequency welded steel pipe outlet-groove, pipe cap and sling
high-frequency welded steel pipe, groove, pipe cap and sling are called export "three-piece set".
Let's talk about the groove first, which is a specific geometric slope formed by processing the end of the steel pipe. For the outlet of high frequency welded steel pipe, the precision of groove is quite high. Appropriate groove angle can ensure that the weld quality reaches the standard, the fusion is sufficient and the stress is uniform in the subsequent welding and assembly of steel pipes. Common groove angles are 30 and 37.5, etc., depending on different engineering standards and customer requirements. During the machining process, professional cutting equipment, such as plasma cutting machine or beveling machine, should be used to strictly control the cutting speed, current and other parameters, so as to ensure that the surface of the bevel is smooth and free of burrs, iron oxide and other impurities, so as to lay a good foundation for the subsequent welding process.
The role of the same pipe cap is also very important. It is like putting a "safety helmet" on a high-frequency welded steel pipe. If it is exported to coastal areas with humid climate and high salinity, or the food and pharmaceutical industries that require extremely
