Advantages of metal casting compared to sand casting
Metal casting versus sand casting: There are many technical and economic advantages.
(1) (1) Metal-type castings produced on a casting machine have higher mechanical properties than sand-type castings. The same alloy, the tensile strength can be increased by about 25% on average, the yield strength is increased by about 20% on average, and the corrosion resistance and hardness are also significantly improved;
(2) The precision and surface finish of the casting are higher than that of the sand casting, and the quality and size are stable;
(3) The process yield of the casting is high, and the liquid metal consumption is reduced, generally saving 15 to 30%;
(4) Without sand or less sand, it can generally save 80~100% of modeling materials;
(5) The metal mold casting has high production efficiency; the cause of defects in the casting is reduced; the process is simple, and it is easy to realize mechanization and automation.
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