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              Company News Industry News

              Prevention of Forging Cracks

              2024-04-12
              The principle of preventing crack

              1. Chemical components of refractory raw material should strictly comply with the standards of harmful elements, such as S, P, O, N, CU, AL and other easy to form inclusion elements and An, Sb and other trace elements should be controlled.

              2. To strictly control the smelting and casting process. This is to improve the purity of steel, eliminate the metallurgical defects, an important link to prevent crack will occur. Practice has proved that the inclusions in steel and presents lumpy aggregation, coarse grain and grain boundary fragility and blank with micro crack and subcutaneous bubbles, cracks easily damaged.


              3. When forging, it is necessary to maintain a good stress state, such as changing the free forging punching into die extrusion forming to improve the stress state, so as to prevent the formation of cracks.

              4. Strictly control the deformation temperature. Low temperature hardening, serious plastic decrease; the temperature is too high, overheated, burning, plastic will fall, will be likely to produce cracks. Only fully of recrystallization interval in softening, is generally a single organization, less possibility of forging crack.

              5. Deformation rate has a great impact on the low plasticity material, should be based on the specific material selection of suitable forging equipment, in order to prevent the fracture.



              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.


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