Investment casting is a general term for precision casting technology obtained through precision casting methods. The factories engaged in precision casting are called investment casting foundries or investment casting suppliers. JC Casting is an investment casting supplier in China. We have our own foundry. Mainly production technic is in precision casting, sand casting, and machining.
Investment-Casting-Suppliers-in-China
The development status of China’s investment casting industry
- The scale of China’s precision machining industry
Although China’s precision casting industry has been established in the 1950s. But the real rapid development occurred during the more than ten years that appeared in the early 1990s. Especially in recent years.
At present, China’s investment casting has three types of processes.
First: The investment casting process of medium temperature investment and shell made of silica sol or silicic acid catalyst. That is known as the investment casting process.
Second: low-temperature mold material and shell-making process of water glass luminescent agent. Its casting size is accurate and its surface color is worse than investment casting.
Third: composite process. Use medium temperature or low-temperature molding material to make the mold. The surface layer is made of silica sol, and the layers are made of water glass by a composite process.
- The technological level of China’s precision machining industry
At present, the castings produced by China’s precision casting are mainly investment casting. Like castings for aviation and gas turbines, the quality has reached international standards. There are 150 manufacturers with an annual output of 1.5 tons. The annual output value is 35 US dollars.
Aviation precision castings can account for 1.8% of the total output. Generally, rapid precision castings account for 29.4%. Water glass castings accounted for 68.8% of the total output. China’s casting output continues to rank first in the world
The various molds of China’s investment process have made great progress. There are also many new materials, new processes, and new equipment. They have an impact on the development of investment technology. Such as melting core, ceramic core, material technology. Large-scale investment casting technology, titanium alloy investment casting. Fine text and single crystal casting, filtration technology. Thermal automation isostatic pressing, rapid prototyping technology.
The application of computers in investment casting has enabled investment casting molds. They can produce small and large castings. The shape of the largest investment casting is already 2 meters. The thinnest wall thickness is less than 2 mm.
At the same time, investment castings tend to be more precise. In addition to deformation. The parts can also reach the surface value of investment castings and the surface value will increase slightly, reaching Ra0.4um.
- Between China’s precision casting industry and the international level . China’s casting output continues to rank first in the world