1,resin sand stiffness,the initial sand casting,high strength,this conditional use graphite cast iron solidification expansion of the effective elimination of shrinkage,shrinkage defects,to achieve gray iron,ductile iron riser less,no risk Port casting.
2,real use of polystyrene foam casting production pattern,the application taste furan resin-bonded sand molding. When casting molten metal type,foam plastic look like liquid metal in high under the endless rapid gasification,combustion and subsided,the liquid metal foam to replace the original position occupied by Wang plastic cooling solidified into the same shape and look like real model castings .
3,relatively speaking,
lost foam casting For single or small batch production of automobile parts,machine tools and other large bed sand mold of traditional gown of great advantage,it not only eliminates the cost of the expensive type of wood,and easy to operate And shorten the production cycle and improve production efficiency,with size and high precision,small allowance,good surface quality and other advantages.