&Nbsp& Nbsp; Gray iron castings sometimes experience local sand sticking after casting, which is because during casting, the local coating in the mold cavity falls off or cracks, and liquid metal infiltrates between the sand particles, forming varying degrees of sand sticking defects& Nbsp& Nbsp; The main causes of sand sticking defects are:; Uneven coating application, excessive air permeability

&Nbsp& Nbsp; After production, cast iron parts generally need to undergo polishing treatment. Do you know how to do a good job in polishing cast iron parts? Below, technical personnel from casting manufacturers will briefly introduce to you, hoping to be helpful& Nbsp& Nbsp; Chemical polishing of cast iron parts: Chemical polishing is the process of allowing the surface of a material to preferenti

Due to various factors, cast iron castings often exhibit defects such as pores, pinholes, slag inclusions, cracks, and pits. Common repair equipment includes argon arc welding machines, resistance welding machines, cold welding machines, etc. For casting defects with low quality and appearance requirements, welding machines with high heat generation and fast speed such as argon arc welding machine

&Nbsp& Nbsp; Reason for deformation of machine tool castings: to prevent sudden changes in wall thickness. Machine tool castings with small and uniform wall thickness condense simultaneously, while machine tool castings with large and uneven wall thickness condense sequentially from thin to thick, and the placement of cold iron is reasonable. A slag hole is an irregularly shaped hole inside or out

The low cost, good processability, and saving resources and energy through remelting and regeneration of ductile iron components make the application and development of this material long-lasting. Research and development of cupola electric furnace dual melting process and equipment; Widely adopting advanced desulfurization and filtration technologies for molten iron; Manufacturing technology for