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.…
As the name suggests, stamping iron discs are made by pressing the upper tool and lower die on iron plates of different thicknesses with a stamping press machine (stamping machine for short). The specifications of stamping iron discs are not fixed because the cutter and stamping die can be arbitrarily changed to produce stamping iron…
Stamping parts are the forming and processing methods of workpieces (stamping parts) with required shape and size by applying external forces on plates, strips, pipes and profiles by presses and dies to cause plastic deformation or separation. Stamping and forging belong to plastic processing (or pressure processing), which is called forging. Stamped blanks are mainly…
