Main causes of scratches and solutions: 1. The material is poor and scratched. The raw materials with scratches should be carefully used. If paint or other surface treatment is required, the position of paint or surface treatment must be known. If the scratch is serious, consider whether to use it. 2. The material loading and…
Stamping parts are mainly formed by stamping metal or non-metallic sheets with the help of the pressure of the press and through the stamping die. They mainly have the following characteristics: ⑴ Stamping parts are manufactured by stamping under the premise of small material consumption. The parts are light in weight and have good stiffness.…
The cast flange has accurate blank shape and size, small processing amount and low cost, but it has casting defects (air hole, crack and inclusion); The streamline of the internal structure of the casting is poor (even worse if it is a cutting part); A few low-quality flange castings are cast. For small castings with…
Flange blank is defined as a production object made according to the required shape and process size of the finished flange for further processing. It is mainly divided into three categories: casting flange blank, forging flange blank and hot coil flange blank. Next, we will introduce the application of flange blanks in steel gate valves.…