Casting Technology Design of Bearing

First, the process

1, review the parts diagram Carefully read the parts diagram, familiar with the parts diagram, and provide the parts diagram must be clear, complete the size of the pattern. Note whether the structure of the parts map casting process.

2, the technical requirements of casting parts important work surface, in the casting is not allowed to have holes, trachoma, slag holes and other defects.

3. Material rationality of the material selected Casting is reasonable, the general can be combined with the use of parts requirements, workshop equipment, technical conditions, etc. Casting alloys (such as cast steel, gray cast iron, ductile iron) grades, Characteristics, price and application of a comprehensive analysis to determine whether the selected alloy qualified.

4. Review casting structure Casting wall thickness is not less than the minimum wall thickness of 5-6 in the critical wall thickness of 20-25

Second, the process to determine the program

1, the determination of casting methods include: modeling methods, core-making methods, casting methods and casting type selection (1) modeling methods, core-making method selection According to the characteristics of handmade and machine modeling, (3) Selection of mold type According to the characteristics and application of the mold selection of self-hardened sand. 2, Determination of pouring position According to the parameters of the parts, 3, sub-surface selection of the casting hatchback shape, according to the selection of sub-surface principle, the largest part-sectional surface taken, that is, the bottom surface.