Gravity casting refers to the process of pouring and molding molten metal into the mold cavity under the action of gravity, also known as gravity casting. In a broad sense, gravity casting refers to sand casting, metal mold casting, investment casting, lost foam casting, etc. Gravity casting in a narrow sense also refers to metallic pouring.

There are many types of mold casting, including gravity casting molds and high-pressure die casting molds (die casting). So what is the difference between these two casting processes?

There are three requirements for the material of gravity casting molds. The dimensional accuracy can be relatively fine, and the wall thickness must reach more than 4mm. Of course, some local positions can be less than 4mm. Moreover, gravity casting mold products have a high degree of freedom, are relatively mature, have high production efficiency, and are better in solid solution.

Compared with gravity casting molds, high-pressure die casting molds are inferior in mechanical properties. The liquid has no time to absorb, and solid solution treatment cannot be performed. The wall thickness is greater than 10mm, which is not conducive to production and the cost is relatively high. However, its life is relatively high, about 80,000/mold times.

Gravity casting is one of the main ways to obtain blanks for mechanical casting products. Advanced equipment is certainly an indispensable factor to ensure product quality, but the role of molds in the casting process is also very important. Especially for aluminum alloy auto parts manufacturers, the precision and durability of molds have a very obvious impact on product quality.

In the social production process, gravity casting has gradually been accepted by major automobile and daily necessities manufacturers due to its advantages over other casting methods, and its share in the market has gradually increased. I believe that in the future, gravity casting will be famous all over the world for Made in China and truly achieve world-class quality.