Continuous casting is a continuous batch casting method in the steel industry, generally a production operation in smelters, such as producing slabs, billets, and round billets, but not the final product.
Casting, on the other hand, is a production operation in foundries, where existing slabs, billets, and round billets are forged or cast (sand casting, precision casting, investment casting, etc.) to become the final product (valve housing, pump body, machine tool base, metal support, etc.). The two are upstream and downstream processes.
1. Casting: Generally refers to the metal forming method of pouring molten metal into a mold cavity, cooling and solidifying it to obtain a blank or part. It includes various types such as sand casting, pressure casting, and centrifugal casting.
2. Continuous Casting: A special form of casting, specifically referring to the process of continuously cooling and solidifying molten metal (such as molten steel) through a crystallizer, pulling out an infinitely long billet, and cutting it. It belongs to continuous casting technology.
Key Differences Comparison: Continuity of Production Method
Continuous Casting: Molten metal is continuously injected into the crystallizer, and the billet is continuously pulled out, achieving uninterrupted production.
Casting: Typically an intermittent production process; for example, ingot casting requires successive pouring and demolding.
Process Complexity and Efficiency
Continuous casting eliminates the demolding, mold preparation, and ingot homogenization processes of ingot casting, simplifying the process, reducing infrastructure investment by 40%, and energy consumption by 25%-50%.
Casting processes vary depending on the type; for example, sand casting requires molding and core making, making the process relatively complex.
Product Forms and Applications
Continuous casting mainly produces semi-finished products such as slabs and billets, which are directly used for rolling, suitable for large-scale standardized production of steel and non-ferrous metals.
Casting can produce complex-shaped parts (such as engine blocks and artistic castings), suitable for small-batch, customized applications, such as automotive parts and precision instruments.
Quality and Cost
Continuous casting produces denser billets, increasing metal yield by 8%-14%, with only 1%-2% loss from head and tail trimming.
Castings may require further processing, resulting in lower yields, but offer high flexibility and can manufacture parts with complex internal cavities.
The above explains the differences between continuous casting and casting. Of course, as a professional foundry in China, Mulan Metal only provides various metal casting services and can help you with the commissioned production of various finished castings. If you have large-scale customized casting needs, please contact Mulan Metal. Mulan Metal has provided customized casting services to customers in more than 30 countries and has received consistent recognition. We look forward to your cooperation and consultation.
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