What is the difference between casting and forging of valves

People who contact the valve should be exposed to the words casting and forging. Casting and forging are two different processes for valve manufacturing. What are their respective meanings?

Casting, as a metal hot working process, has been mastered by human beings for about 6000 years. Casting valve: it is to melt the metal into a qualified liquid and pour it into the specified valve model. After cooling, solidification and cleaning, the valve casting with predetermined shape, size and performance can be obtained, which is the whole process of casting valve.

The connection between casting and valves is that after the 20th century, casting developed rapidly, creating nodular cast iron and malleable cast iron that are still often used in valve products. At the same time, there are ultra-low carbon stainless steel, aluminum copper, aluminum silicon, aluminum magnesium alloy, titanium base, nickel base alloy and other casting metal materials.