Causes and prevention of gas porosity:
● Poor venting of mold and cores
● Insufficient drying of mold and cores
How can you prevent gas porosity?
● Increase permeability of mold and cores；
● Increase gas permeability of sand；
● Dry out molds and cores before use and store dry；
● Incorporate good fluxing and melting practices；
● Increase the rate of solidification by reducing the metal temperature during casting.
ABOUT KEVA
Keva Casting is a professional casting company that focuses on Construction, Machinery, Automobile, Hardware, Pipeline and many other industries.
We provide top quality products with the best service based on our complete production chain including our own mold design, advanced production techniques, and full management of the supply chain. Keva Casting has two factories located in Zhucheng, China's Shandong province.
We use "shell molding", which is a new technique that has been developed in recent years.This new technique has simplified production procedures and reduced air pollution compared with traditional sand casting and investment casting. Shell making and core making are faster to ensure production in enormous quantities. The dimensions and surface finishing are satisfactory for all kinds of industrial requirements. Besides supplying our own formwork & scaffolding systems, our casting products also supply OEM services in various industries.