Non-standard pig iron cast CNC gantry milling machine bed base

Non-standard pig iron casting CNC gantry milling machine bed base
The material of the machine tool castings in the machine tool factory is made of resin sand, etc. Due to the large size of the machine tool castings and the length of up to several meters, lost foam is used as a single piece of castings. The weight can reach more than tons, and the wall thickness is in. It has good precision stability and shock absorption, high elastic modulus, suitable compressive strength, moderate hardness and excellent wear resistance. It requires good casting technology. performance, has high resistance to deformation, is easy to cut and process, and requires lower production costs, such as using a cupola furnace for smelting and using a smaller amount of alloy elements. Gray iron casting machine tool castings are more durable and have better casting performance. They are not only practical, but also relatively affordable.
Botou people in large-scale casting technology are all engaged in resin sand technology. Castings made by resin sand technology have good intrinsic quality, beautiful appearance, are not easy to be packed with sand, save energy and working hours, and have low labor intensity for workers. Resin sand is the Resin is a molding sand formulated with a binder. Resin sand is divided into thermosetting resin sand, shell resin sand, molding sand, etc. The casting method that uses molding sand to compactly shape is called sand casting. Sand casting is the most widely used casting method. Its main processes include making patterns, preparing molding materials, molding, core making, mold closing, smelting, pouring, and falling sand. , cleaning and inspection, etc.