1827 British glasses

1875 French tempered glass

1903 American cylinder method for manufacturing window flat glass

19 16 Belgian Falk Process (Part I) to Produce Window Glass

19 18 production of window glass by German calendering method.

1925 Pittsburgh (grooveless) window glass production

1959 British pilkington float forming process

197 1 China Luoyang Float

1974 American wide launder float forming process

/kloc-At the end of 0/4, when Zheng He went to the Western Ocean, he brought craftsmen back to China to produce flat glass by hand blowing and flattening in Guangzhou.

During 1906, Chinese people purchased equipment and materials from abroad and built flat glass factories in Boshan, Shandong, Suqian, Wuchang, Hankou and other places by semi-mechanical blowing and flattening.

1922, national capitalist Zhou introduced Fokker process in Qinhuangdao, and built the first machine-made flat glass production line in China, Asia and even the Far East, which was put into operation in 1924. After that, China successively built Fokker production lines in Dalian and Shenyang.

From 65438 to 0949, only Qinhuangdao, Dalian and Shenyang produced flat glass in China, with an annual output of 920,000 weight boxes. Since 1953, China has started the process of designing, researching, developing and manufacturing its own equipment. The grooved glass factories in Luoyang, Zhuzhou, Kunming, Bengbu, Hangzhou, Xiamen, Suqian and Lanzhou have been built successively, and the grooveless drawing process and shallow pool flat drawing process have been successfully tested, and a large number of grooveless drawing production lines have been built in Qinhuangdao, Shanghai and Taiyuan.

1978, the total output of flat glass in China reached17.84 million weight boxes, about 9 times of 1949, with an average annual growth of 10.8%.

The research and development of float technology in China has gone through the laboratory test stage (1963 ~ 1967). In the semi-industrial test stage (1967 ~ 197 1 year), the calendered glass production line of Zhuzhou Glass Factory was changed to float method for semi-industrial test. In the industrial test stage (1971~1981year), the calendering production line of Luoyang glass factory was changed to float, and the industrial test was carried out. /kloc-was rebuilt four times after 0/0, and passed the national appraisal in 198 1 year, named as. 198 1 year later, it entered the stage of popularization, application and development. Since then, the flat glass industry in China has taken on a new look, and the advanced productivity formed by float technology has become the main body of contemporary china glass industry. Driven by the rapid development of glass processing industry, glass processing machinery has completed the process from import-oriented to digestion and absorption, and then to independent design and manufacture, and has been rapidly popularized and applied. Domestic equipment basically meets the needs of glass deep processing industry. At present, more than 80% of enterprises have realized the localization of equipment.

In the 20th century, there were two major changes in the production technology of flat glass in the world: the vertical lifting technology was invented for the first time, from manual intermittent operation to mechanized continuous production; The second time was the success of the float process test, which made the production enter the stage of high-quality and efficient automatic batch production. The first mechanically formed glass factory in China was built in 1924, which was mainly based on this process until the 1980s. 198 1 China Luoyang float glass process with independent intellectual property rights has passed the national appraisal and is constantly improving.