Development of precision casting

        Precision casting is also known as the lost wax casting, its product precision, complex, close to the final shape of the part, can not process or very little processing is directly used, so the investment casting is a near net shape of advanced technology.

        In ancient China: Prince Ding, copper, bronze Wu ban and so on, are casting a masterpiece. Since 1940s, the investment of the investment in the industrial production has been developing at a fast pace in the half century. Especially in Europe and the United States to develop rapidly. The investment casting is used in the aerospace and weapon parts, and is used in almost all industrial sectors, especially electronics, petroleum, chemical, energy, transportation, light industry, textile, pharmaceutical, medical equipment, pumps and valves. In recent years, China has developed rapidly.

        The development of investment casting technology can produce small castings, and can produce large castings, the largest investment in the shape of the 2m, while the minimum wall thickness is less than 2mm. at the same time.