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Common defects and preventive measures in the use of resin sand
If furan resin self-hardening sand is used improperly, casting defects such as pores, mechanical sand sticking, and mold sticking often occur. 1. Generation and prevention measures of pores During metal solidification, trapped bubbles form pores in the casting. The shape, wall characteristics, surface texture, and location of pores help distinguish them from shrinkage, sand holes, […]
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