The vanishing mold casting process first of all eliminates the sand core and core making process, eradicates the casting defects caused by core making and core lowering, greatly reducing the generation of scrap; vanishing mold casting technology simplifies the sand processing system, the sand can be used repeatedly, eliminating the sand preparation and waste sand processing department, and also can be set in a more ideal location reasonable shape of the gate, and not subject to traditional factors such as parting and mold taking, etc. The casting process can not only complete the casting process, but also reduce the internal defects of the casting.
The disappearing mold casting process can be applied to other places besides the box and shell castings. Due to the disappearing mold casting process like pyrolysis products will cause carbon increase, black slag and other defects, in the casting of low carbon steel castings and the requirements of very high density of automotive ductile iron security parts, the scrap rate is still relatively high, the choice should be particularly careful. The more complex the structure of the casting shape is particularly adaptable, and the more complex the structure, the more sand cores need to be used when the original sand casting, the greater the amount of machining of the casting, the superiority of the use of disappearing mold casting technology is more prominent, the more significant economic benefits.
The most critical point of the disappearing mold casting process reduces the smoke, dust and noise pollution, improving the working environment of the casting industry, but also reduce the labor intensity of the casting workers. At the same time, it also simplifies the process operation. The degree of technical requirements for the operating workers is greatly reduced.
Casting is the foundation of the equipment manufacturing industry, the casting process is good or bad to determine the performance and quality of castings, directly affecting the level of operation and reliability of equipment. Although China is already a veritable power of casting, but the quality of casting products and the international advanced level there is a clear gap. Most of the product quality indicators there is a stage gap, imitation of more innovation less. Vanishing mold process of large castings industry in technology has experienced the introduction, digestion and absorption and reinvention of the development process, in all aspects of the process has accumulated a richer technical and professional production experience.
Casting industry outstanding enterprises in some aspects have a unique proprietary technology, thus forming their own core competitiveness. Large machine tool casting enterprises need to constantly accept the challenge of new materials and new processes.
