Development prospect and characteristics of investment casting

Investment casting, also known as investment casting, is a precision casting process with little or no cutting.It is a kind of technology in precision casting industry, and its application is very extensive.It is not only suitable for precision casting of various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other precision casting methods.More complex, high temperature resistant and less machined castings can be used.Precision casting.

The practical application of modern investment casting method in industrial production was in the 1940s.At that time, the development of aviation jet engines required the manufacture of heat-resistant alloy parts, such as blades, blades, nozzles, etc., which were complex in shape, accurate in size, and smooth in surface.Because heat-resistant alloy materials are difficult to process, the shapes of the components are so complex that they cannot or cannot be made by other means.Therefore, it is necessary to find a new precision molding process, so that the wax loss precision casting has been passed down since ancient times, through the improvement of materials and technology, modern investment casting method has made an important development.On the basis of ancient technology.Therefore, the development of aviation industry has promoted the application of investment casting, and the continuous improvement of investment casting has also created favorable conditions for the aviation industry to further improve its performance.

Investment casting is based on ancient wax casting.As an ancient civilization, China was one of the early countries to use this technology.For hundreds of years before British Columbia, the ancient Chinese laboring people created this precision casting technique for precision casting, with various fine patterns.There are also clocks and utensils and other products of the inscription, such as the spring and autumn period of the post-post-post tomb.The base of the tomb is a pair of intertwined dragons.They are end to end and staggered up and down to form a multi-layered cloud map in the middle.These patterns are difficult to make by ordinary precision casting processes.Precision casting processes can take advantage of the fact that paraffin wax has no strength and is easy to carve.With ordinary tools, it can carve lime-like handicrafts, such as zengyao yi tomb, and then add pouring system, coating, dewaxing, pouring, you can get exquisite zengyao tomb.

The advantage of investment casting is that the investment casting has a higher dimensional accuracy and surface finish, so it can reduce the machining work, but only a small amount of machining allowance is needed on the parts, even some castings only have grinding and polishing allowance and can be used without machining.It can be seen that investment casting precision casting method can save a lot of machine tools and processing, greatly save metal raw materials.