The plane grinder machine bedding castings are demand tempering: steel is a wide range of materials in the mechanical industry, and the microstructure of steel microstructure can be controlled by heat treatment, so the heat treatment of steel is the main content of metal heat treatment. In order to make the mechanical function, physical function, and chemical function of the machine tool castings, the heat treatment process is essential in addition to the rational selection of materials and various forming processes. Other, aluminum, copper, magnesium, titanium, and its alloys can also pass heat treatment to modify their mechanics, physics and chemical functions to obtain different use functions. It is characterized by improving the quality of the cast iron channels and machine bedding castings. As a large casting product, the machine bedding product is required to be treated with a time-effective treatment, and improve the content of the content of the bed castings. Machine tool bed castings, bed columns, machine tool tables and other castings are roughly annealing, normal fire, quenching and tempering four fundamental processes. When the machine bed, the tempering process should be strictly complied with the tempering process, the bridler or the deformable portion should be added to avoid the deformation and cracking of the temperature of the tempering temperature. There should be a special person to guard back the stove thermometer, manipulate the temperature in time, avoid high temperature or too low, which will have a big impact on the tempering workpiece. All heat treatment is to heat the cast iron plate, cast iron bend or machine bed casting, and then cool in an appropriate speed to change the metal heat treatment process of all mechanical functions of cast iron channels, plate, cast iron bend or machine bed castings.