Machine tool castings can not only save the manufacturer the expensive wood mold cost, but also is easy to operate, shorten the production cycle, improve the production efficiency, and has the advantages of high dimensional accuracy, small machining allowance, and good surface quality.
All castings of machine tool bed castings need to undergo heat treatment to improve the performance of the casting itself, so as to improve its internal quality. An important process link in mechanical manufacturing is the heat treatment of metals. Compared with other processing methods, the heat treatment process generally does not change the shape of the workpiece and the overall chemical composition, but by changing the internal display of the workpiece. Microstructure or change the chemical composition of the cast iron platform and the surface of the machine bed casting to improve the performance of the workpiece. Its characteristic is to improve the inherent quality of the cast iron platform and bed castings. The overall heat treatment of machine bed castings and other castings can be roughly divided into four basic treatment processes: annealing, normalizing, quenching and tempering. When the machine bed castings are tempered, they should strictly abide by the tempering process to prevent the deformation and fracture of the castings caused by the tempering temperature. Special personnel should take care of the thermometer of the tempering furnace, and control the temperature in time to prevent the temperature from being too high or too low.
