With regard to the derusting of the elbow, the first thing to do is to clean it up. The surface should be cleaned with solvents and emulsions to remove grease, oil, dust, slippery agents and similar organics; afterwards, on the pickling of the elbow, the elbow The antisepsis should also pay attention to the use of chemical pickling, so that it can also remove scale, rust, and old coatings.
When the pipe is derusted, it is necessary to pay attention to spray rust removal. After the high-power motor drives the high-speed rotation of the spray blade, the sand, wire section, minerals and other abrasives are sprayed on the appearance of the curved pipe under the centrifugal effect. Disposal.
When actually designing, it should be noted that when the bending apparatus bends and forms, the metal material is deformed by the force and is bent at an angle. When the external force is withdrawn, the bent tube part is restored to its original condition. The measured bending angle of the tube is smaller than the required bending angle. This is the rebound of the so-called tube. Here we will talk about the factors that affect the rebound of extra-large bends.
When different materials, different diameters, different bending radii, and different tooling and adjusting process parameters are used for the extra-large elbow, the rebound of the extra-large elbow may be affected. There are many factors that affect springback, but after the machine tool is adjusted, the process parameters have been determined, and the relationship between the bending angle and springback is determined in the case of bending a batch of materials.
When designing the elbow, it is necessary to pay attention to the above processing conditions. To a large extent, it directly simplifies the factors that affect the rebound time. In this regard, when it is actually used, it is It is also possible to view the bending angle of the bending elbow of the pipe bending machine as a linear relationship with the bending angle of the pipe, which is a simple and very practical method for determining the rebound.