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The method of reducing the casting temperature of machine to

Category:The method of reducing the casting temperature of machine to

Summary:The surface of the machine tool castings is covered with a mixture of metal (or metal oxide) and sand (or paint) or a layer of burnt sand, which results in rough surface of the machine tool castings. Reduce sand clearance. Lower the pouring

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The surface of the machine tool castings is covered with a mixture of metal (or metal oxide) and sand (or paint) or a layer of burnt sand, which results in rough surface of the machine tool castings. Reduce sand clearance. Lower the pouring temperature of metal properly. Reduce sand clearance. Lower the pouring temperature of metal properly. Improve the refractoriness of molding sand and core sand. Machine tool castings do not break during pouring. Can be used for the processing of instruments, electronics, light industry, standard parts, bearing industry, auto parts industry and other parts. Wear resistance and dimensional stability directly affect the accuracy of the machine tool maintenance life. Machine tool castings are widely used, so the primer of machine tool castings should be evenly coated or sprayed and dipped. The primer should be thoroughly stirred before use and then diluted to the appropriate year before application. After machining the bed casting, before painting with metal cleaner or clean industrial gasoline for washing or brushing, to ensure the surface of oil and other dirt.
 
After a to be bored with child polishes clean, need to spray perchloroethylene channel primer, can improve the flatness of paint film, improve the gloss of paint film. The casting can only be polished after it is dried after the indentation of the filling machine with perchloroethylene. After each polishing, the surface pulp and dust are required. Cold insulation an unfused gap or pit in a machine tool casting with a rounded boundary. Increase pouring temperature and pouring speed. Improved casting system. Pour without interruption.
 
 
As a product frequently used in our daily life, casting is mainly affected by the following four factors.
 
1. Whether the quality of casting raw materials is excellent or not. If the quality of materials such as metal charge, solvent, metamorphic agent or coating is not up to the standard, the cast iron will produce porosity, slag, sand and other defects, thus affecting the internal and external quality of cast iron.
 
2. Reasonable process operation rules. In the process of making castings, it is necessary to constantly improve the technical level of the workers, and at the same time, formulate reasonable process operation rules to make the production process correct and reasonable.
 
3, cast iron design technology. In the process of design, in addition to determining the geometric shape and size of the casting according to the working conditions and metal materiality, the design rationality should also be considered according to the Angle of casting process characteristics and casting alloy, so as to avoid deformation, cracking, component segregation and other defects of the casting.
 
4, the casting process should be reasonable, is according to the structure of cast iron, machine size and weight to choose the appropriate modeling, core method. In addition, the chiller, riser and casting system should be reasonably set up to ensure the quality of cast iron.

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