Heat Treatment
Heat treatment is used on aluminium castings to modify the mechanical properties, including balancing tensile strength and ductility. Understanding how different temperature and exposure times influence the mechanical properties of the casting is key to getting the desired outcome.
How does heat treatment improve material properties of a part?
Heat treatment can change the structural properties of the metal by redistributing material precipitated from grain boundaries to homogenise the microstructure. This balances tensile strength and ductility. Heat treatments can also change and improve other material properties such as corrosion or electrical resistance.
Impregnation
Where micro porosity and micro voids are a possibility (or have been identified via inspection), impregnation protects against the chance of the casting leaking air or fluids. It's a thermosetting plastic that seals against potential leak paths.
How does impregnation improve casting quality?
Impregnation helps maintain function of the part with sealing, reducing both internal corrosion and moisture. This ensures parts and components are pressure and leak tight, helping to remove potential leak paths.
Surface treatments
Treatments such as painting, electrolysis and chemical coating can all be used to give a casting enhanced surface properties. This will usually happen after the casting has been machined (if this is required). The use of these techniques will be driven by the alloy composition of the casting, application and desired surface properties.
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.