Views: 0 Author: Site Editor Publish Time: 2018-04-09 Origin: Site
H2. The analysis and research on casting defects is one of the key techniques to improve the casting yield. However, the difficulty is not small.
H3. Main performances:
1.It covers a wide range of knowledge, such as alloy, casting process, molding material, casting equipment and testing of production process.
2.Defect can be caused by a variety of causes, and one cause may cause several defects.
3.Technical measures, such as the adoption of a measure, can prevent a certain type of defect, but may lead to another defect.
4.The influence factors are difficult to control, such as raw material quality, air temperature and humidity.
H4. The enterprise that produces castings, its business goal is to realize profit maximization.To this end, in the production process, as far as possible to improve the casting yield. The yield of the castings is the percentage of the total weight of qualified casting and the total weight of the cast metal charge.
H5. According to the material and size of the casting, the yield of the casting is normal in the following range: 60% ~ 64% of the cast iron pieces, 64% of the pieces are 70%, and the large parts are 70% ~ 80%; Steel casting, 50% ~ 55%; Nodular cast iron and alloy cast iron 45% ~ 50%; Malleable cast iron, 38% ~ 45%; Aluminum casting, about 50%; Steel casting, 50% ~ 55%; Malleable cast iron, 38% ~ 45%.