The quality of machine tool castings mainly includes appearance quality, intrinsic quality and quality of use. Machine tool casting appearance quality refers to the machine tool casting surface roughness, surface defects, size deviation, sh

1, the hole in the bed castings inside, at or near the surface, there are different sizes of smooth eyelet, the shape of a round, long and irregular, there are single, there are gathered into pieces. Color white or with a dark layer, and so

1, good resin sand stiffness, early casting sand strength, which conditions the use of cast iron solidification process of graphitization expansion, effectively eliminating shrinkage \ shrinkage defects, to achieve gray cast iron ductile ir

The first is the casting process design process. In order to determine the casting geometry and size according to the working conditions and the properties of the metal material, it is necessary to consider the rationality of the design fro

The advantages of using resin sand casting bed casting: 1, resin sand rigidity is good, pouring early sand strength is high, which is the condition of the use of cast iron solidification process of graphitization expansion, effectively elim

1, the stomata in the bed inside the casting, the surface or near the surface, there are sizes ranging from smooth holes, the shape of a round, long and irregular, there are single, but also gathered into pieces. The color is white or with

Machine casting casting method is commonly used sand casting, followed by special casting methods, such as: metal casting, investment casting, gypsum casting and so on. And sand casting can be divided into clay sand, organic binder sand, re

Casting production is an old and emerging industry, but also an important base industry in the machinery industry. Determines the service life of the equipment and the use of reliability. Through thousands of years of production practice ac

Casting is a multi-process, multi-operation of the type of work, so in any one part of the problem, will lead to the occurrence of defects, really a chess full disk are lost may. On-site inspection of the project is mainly the model of clea