China lost mold casting, why is half flame, half iceberg!(a)

Although China is not the inventor of foam vanishing process, it is the country with the largest output of foam casting and one of the countries that has lost the relatively mature application of foam technology.

Currently, China's epc production is about 5 million tons, accounting for 10% of China's foundry production.

The research on epc technology in China originated from Shanghai.As early as 1970, Shanghai foundry cast a heavy??52 tons of steel castings.In 1974, 32.5 tons of cast iron were cast.Only the foam foundry with the lost top can still cast such a large lost mold casting.

Although the lost mode technology was invented by American Sloan in 1956.But between 1970 and 1980, China's model loss technology was not much worse than that of the United States.

In fact, it was also the Chinese foundry scholars who laid a solid foundation, and then had the strength and status of China's foam foundry in the world today.

After China followed the us, western countries were severely blocked.Mr. Liang guang, a casting expert, began to study the lost mold casting process in Shanghai institute of mechanical manufacturing technology in 1965.With rich casting knowledge, Mr. Liang has made great achievements in the field of lost foam casting.The steel castings with the maximum loss and the lost die castings mentioned in the above article were completed under the leadership of Mr. Liang.

After 1980, China entered an era of reform and opening up, and private foundries flourished like mushrooms.The construction of vanishing mold foundry has also entered a new era.Private foam foundries are disappearing.But the private sector lacks specialist lost-mode technicians.In order to get talent, private companies began to pay high prices for talent from state-owned start-ups.

State foundry technicians earn only a few dozen dollars a month.Once you enter the private sector, you can earn more than ten times your salary.The market economy allows some out-of-mode technicians to enter the market.Some technicians have gone into private enterprises, and some have started their own businesses.

Ten years before the reform and opening up, many regulations in the economic field had been published and everything was treated in terms of money.Under this ideology, heavy commerce, light r&d and light technology are becoming more and more serious.

Therefore, selling atomic bombs is better than selling tea eggs.This income imbalance has led to huge losses for technical researchers.This has to say that China's scientific research has failed.In the case of epc, a decade of technical stagnation has widened the gap between China and developed countries.

Outside, at the lost foam foundry institute in the form of a state-owned enterprise, the sound of a few tickets stirred by tickets outside, many technicians began to go to sea.

From 1990 to 2000, during this period, the international lost mold casting has entered the era of machinery and automation.Developed countries, mainly USA, Japan, Germany and UK, have made great achievements in epc..The application of epc is more and more extensive.It is also known as environmentally friendly casting and green casting.

During this period, the development of lost mold casting in China was also very fast.By the year 2000, nearly 200 epc plants were registered for industry and commerce.Many small and medium-sized foundries are not registered as lost foam foundries, but they are all on the foam line.In 2000, there were about 500 epc production lines in China.

Entering the 21st century, from 2000 to 2010, this period was the blowout period of foam foundry in China.From 2000 to 2010, domestic foundries began to roll out a large number of vanishing mold production lines.