The ring die is one of the key parts of the biomass pellet machine, and it is also a vulnerable part, which is expensive; its good quality and stable quality directly affect the service life of the ring die, the output of the pellet machine, and the quality of the finished pellets. , Thereby affecting the production cost of particle processing.
A reasonable ring die processing technology mainly includes forging, rough turning, fine turning, drilling and reaming, inner hole grinding, and proper heat treatment process in the machining process. Today, Bao shell roller ring die will take you to learn about the forging process of biomass pellet machine ring die blanks.
Forging process of ring die blank of pellet machine
In the open-die forging process, a piece of metal deforms by placing it between the dies without completely enclosing it. The mold achieves the desired shape and shape by hammering or deforming the metal through a series of movements. At the beginning of the forging process, the raw materials are cut into similar sizes, and then put into the forging plate to form. Use the opening to perforate the blank and then pierce the die forging process in the center to make a doughnut-shaped preform.
The ring-shaped preform is placed on the ring rolling mill and rolled. The height of the axial roller control ring. The idler wheel, or mandrel, presses the preform on the preform and drives the roller to reduce the wall thickness and height by applying pressure on the preform, and increase the ring diameter to the correct diameter.
For the same ring die material, different processing techniques will directly affect the quality and quality stability of the ring die. Therefore, it is very important to formulate a reasonable ring die processing technology, which is the key to improving its service life and stable quality.