In the practical application of lost foam casting in China and abroad, the lost foam casting of cast iron alloy is the most widely used. Its production line appeared earlier and has a large number.
In 1985, General Motors established the first lost foam casting production line in Massena, which is mainly used for the production of aluminum alloy cylinder block and cylinder head. In 1986, Ford invested millions of dollars to build a lost foam casting production line, which is mainly used for the production of castings such as intake and exhaust pipes and oil pans. The production line has an annual output of 2million automobile intake and exhaust pipes. In 1996, statecasts company of the United States used the lost foam casting technology to produce 26000 tons of iron alloy castings.
In 1991, Teksid invested 15million dollars to build the ductile iron lunyi automatic production line. The annual output of castings can reach 10000-15000t, and the scrap rate can be controlled below 1%. In addition to Teksid company’s investment in the establishment of the lost foam casting automatic production line, Italy’s fata company and Massi fond company have also successively established the lost foam casting automatic production line.
The advantages of lost foam casting technology have been recognized in many countries and regions, such as Japan, France, Germany, South Korea, Brazil and Taiwan, China. Moreover, lost foam casting technology has been applied and popularized in these countries and regions, and has achieved obvious economic benefits.
China is one of the countries that applied the lost foam casting technology to actual production earlier, and there are a large number of lost foam casting production enterprises. In 1900, Songzhuang foundry in Tongxian County, Beijing built a lost foam casting production line with an annual output of 5000 tons; From 1993 to 1996, Wuxi Yongxin foundry, first automobile group, Hubei Hanjiang group and other companies spent a lot of money to introduce the lost foam casting production automation production line. According to incomplete statistics, until the end of the last century, more than 40 large and medium-sized enterprises in China applied the lost foam casting production technology to mass produce castings, and dozens of lost foam casting automatic production lines were successively completed and put into operation. In addition, nearly 100 small and medium-sized enterprises in China have built simple lost foam casting production lines with an investment of 150000-300000 yuan.