ANNEALING DEFINITION
By definition, annealing involves heating a material and allowing it to cool slowly to remove stresses and make it easier to work with. When a metal material is heated, its physical properties alter to increase its ductility and reduce its hardness. More specifically, the metal is heated above its recrystallization point, causing atoms to shift in the crystal lattice and recrystallize as the metal cools.
ANNEALING METAL PROCESS
The annealing process takes place in a metallurgical furnace and is typically performed at an integrated or reroll mill. Three main stages occur during the annealing process:
? Recovery stage — The initial heating of a metal to the temperature point where the metal can relax and become malleable.
? Recrystallization stage — The stage when a metal is heated above its recrystallization point but lower than its melting point for new grains to develop without forming preexisting stresses.
? Grain growth stage — During this stage, grains forming during the recrystallization stage fully develop. By controlling the cooling process, the grain growth yields a more ductile and less hard material.
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.