The future of Chinese investment casting

China's investment casting industry was built in the 1950s. There are two types of technology enterprises for historical reasons: one is silica sol or ethyl silicate shell process, and the other is water glass shell process. The investment castings of the former type of factories have reached international levels, and the castings of the latter type of factories have not yet reached international levels, but the latter type of factories account for the majority of the total number of manufacturers. The former type of factories are mainly backbone foundries in the former aerospace sector and new joint ventures in the 1990s. In the past decade, this type of factory has developed rapidly. In 1988, it accounted for only 6 of the country's investment foundries, with an output value of about 10%. In 1993, the number of factories increased to 10 and the output value increased to 25. In 1997, the number of plants increased to 13. Nearly 50. At present, there are about 1,500 investment casting plant points in China, with an annual output of 170,000 tons of precision castings and an output value of about 280 million US dollars.

With the development of the domestic economy and aerospace industry, the development of the international market, the improvement of process technology and management level, and the improvement of the supply of raw and auxiliary materials and equipment, the former type of foundry will continue to develop. The former aviation backbone factory keeps up with the international advanced technology, improves the management level, and moves towards the international market. Export enterprises with stable technology and production scale should improve the product grade and stop mainly producing golf heads, hardware, harnesses, pipe valves with low high-precision requirements, but expand the precision. Requirements for the production of mechanical parts.

The number of investment casting foundries of the latter type is too large and in oversupply. With the development of cast steel and resin sand technology, market competition will become more intense. Some companies will be eliminated. It is recommended that factories with higher levels and conditions should take advantage of the advantages of fast and cheap water glass shells, invest a small amount of money to develop silica sol water glass composite shell technology, and produce high-quality low-cost investment castings. Such as water glass shells. In order to meet the needs of domestic and foreign automobile, machinery manufacturing, instrumentation, electronic communication equipment, food machinery and other industries, China's investment foundries have a large output, but the products have reached international standards. The output value of these products only accounts for the international. Investment casting is about 2. Most of China's precision casting raw materials can be based on domestic prices, cheaper prices, low labor costs, and a large number of technicians.

The future of China's investment casting

The domestic market has great potential. Due to high labor costs, energy and environmental protection, developed countries are gradually turning to developing countries. This is a favorable condition for the Chinese investment casting industry to provide opportunities and development. Investment casting colleagues should strive to improve the company's process technology and management level, improve product quality, open up the market, and have broad prospects.