The defects of the lost wax casting process
Mar 07, 2024| 1.High cost
Compared with other traditional casting processes, the lost wax casting process has higher requirements for materials and technology, so the cost is relatively high. In the entire casting process, the need to use high temperature, high pressure environment, the need for precision molds and equipment, which need to invest a lot of costs to complete.
2.The production cycle is long
The lost wax casting process usually has a longer casting cycle than the traditional casting process. For some large and complex castings, it is necessary to carry out many complicated processes such as mold making, wax injection, impregnation, drying, and sintering, and each process requires a certain amount of time and energy, so the production cycle is also longer.
3. Susceptible to impurities
Lost wax casting process in the manufacture of mold, mold surface must be smooth, no defects, no impurities. However, in actual operation, due to the quality of the molding material, baking conditions and other aspects of the influence, often appear mold surface defects, bubbles and other problems, these problems will have an impact on the final casting quality.
4. Easy to deform
The lost wax casting process needs to inject liquid metal when manufacturing castings, and the mold temperature changes quickly during the wax injection process, so it is prone to deformation, especially in some large and complex casting manufacturing, which is prone to deformation and warping.
5. Environmental protection
Lost wax casting process In the casting process, need to use some harmful chemicals, such as wax, pottery, paint and so on. During the use of these substances, some harmful gases and waste water will be released, causing certain pollution to the environment.
In summary, although the lost wax casting process is a high-precision and high-quality casting process, its shortcomings such as high cost, long production cycle, easy to be affected by impurities, easy deformation, and environmental protection problems can not be ignored. In the future development, it needs to be continuously optimized and improved to make it more suitable for market demand.