Development of aluminum alloy formwork at home and abroad

Aluminum alloy formwork was born in the United States in 1962. It is the fourth generation of formwork after experiencing wood formwork, steel formwork and plastic formwork, Because of the advantages of aluminum alloy (light weight, convenient disassembly and assembly, high rigidity, large plate surface, few splices, good stability, high accuracy, smooth and smooth pouring concrete, long service life, many turnover times, good economy, high recovery value, fast construction speed, high construction efficiency, safe and clean construction site, good construction image, low dependence on machinery and wide range of application), it is popular in the United States The application of Canada and other developed countries, as well as the construction of emerging industrial countries such as Mexico, Brazil, Malaysia, South Korea and India, has been widely used, with a history of 61 years.

Before 2008, the annual aluminum template market in the United States was about US $100 million, which was divided up by four or five local aluminum template manufacturing companies. The aluminum alloy formwork technology is also widely used in the indemnificatory housing in Mexico. Just take an aluminum template manufacturing company headquartered in Colombia as an example. During the term of President Fox in Mexico, it participated in the construction of more than 1 million guaranteed houses with its aluminum template technology. Countries have also accumulated a lot of experience in the design, manufacture, application and construction of aluminum formwork in the process of promotion and use.

In recent years, under the call of the country to build a low-carbon and environment-friendly economy, the construction sector has followed the trend of environmental protection and advocated green buildings. (Green building refers to saving resources, protecting the environment and reducing pollution to a large extent during the whole life cycle of the building, and providing people with healthy, applicable and efficient use space.) In China, it has been favored by many builders in just a few years.

On December 20, 1986, our country successfully developed the rare earth cast aluminum alloy template jointly by the municipal cast aluminum products factory and the municipal second light construction company. It has been applied in several civil residential projects with good results, and has passed the technical appraisal of the municipal economic committee. This is the earliest aluminum alloy template technology developed in China. This template technology is based on the cast aluminum alloy template developed by the United States International Housing. It is cast by mold. It has the characteristics of light weight, good rigidity, long service life, can be used repeatedly, high accuracy of template, and can process decorative patterns on the surface. At the beginning of the 21st century, bamboo and wood plywood templates were widely used, forming a tripartite confrontation with steel templates. The use of steel templates was significantly reduced. In the situation of shrinking steel template market, many template enterprises were forced to change production or develop new products. Under this background, aluminum alloy template, namely aluminum mold, has developed in China.