What are the differences between forged and cast valves?
Casting is an integral casting of material in the die. Its stress distribution is uniform and there is no restriction on the direction of compression. The forging is made of the same direction of force, its internal stress has a directional, can only bear directional pressure.
1. Casting: The process of melting metal into a liquid that meets certain requirements and pouring it into the casting mould. After cooling, solidification and cleaning, the casting (parts or blanks) with predetermined shape, size and properties can be obtained. The basic technology of modern machinery manufacturing industry.
2. The cost of casting blank is low, and it is more economical for parts with complex shape, especially those with complex inner cavity. At the same time, it has wide adaptability and good comprehensive mechanical properties.
3. However, the materials and equipment needed for foundry production (such as metallurgical furnace, sand mixer, moulding machine, core-making machine, sand blasting machine, shot blasting machine, cast iron plate, etc.) are more, and dust, harmful gases and noise will be produced, which will pollute the environment.