Comprehensive knowledge of aluminum alloy doors and windows?

The good performance of aluminum profiles determines that they are very popular among architects and users as soon as they are put on the market. As early as before World War II, a small number of buildings abroad had aluminum windows installed. Aluminum alloy doors and windows were introduced in my country in the early 1980s, and until the late 1990s, several old foreign window types were basically used, but the quantity was developed from less to more.

There are more than 1,000 aluminum profile factories in my country, and there are more than 2,000 extrusion machines of various specifications. However, there are many small extrusion tonnages and few large-tonnage extrusion machines. The current maximum tonnage extrusion press has reached 3600 tons. The color of its aluminum material gradually develops from bronze and white to color. For the surface treatment of aluminum materials, in addition to oxidation and electrophoretic painting, resin spraying, paint spraying and fluorocarbon spraying are added. In order to make the surface smoother, chemical polishing and sandblasting are also used. In order to reduce the heat conduction of aluminum profiles, some companies have begun to produce heat-insulating broken bridge aluminum profiles.

The advantages of aluminum alloy doors and windows have been around for decades. Its unique properties have been recognized by the world. They are light, corrosion-resistant, high strength and stiffness, non-toxic, high temperature resistant, and fireproof. It has good performance and long service life, can meet multiple functions of various complex sections, and is difficult to replace with ordinary materials.

With the acceleration of reform and opening up, my country's aluminum alloy doors and windows industry has developed rapidly, from glass curtain walls and glass daylighting roofs to the world's latest hidden frame glass curtain walls, frameless all-glass curtain walls and in recent years. Although the aluminum composite panel curtain walls that appeared in Shanghai, Guangzhou and other places started late, they have developed rapidly and have a high level.

A large number of powerful military industrial enterprises were engaged in the production of aluminum alloy doors and windows in the early days. Their products were appreciated by architectural designers and users as soon as they came out. However, due to the rise of many collective enterprises, township enterprises and individual enterprises, the quality of the products has declined, which has had a negative impact on the product for a period of time.

At present, there are many aluminum alloy door and window production lines introduced in our country, and they are available in almost all countries in the world. In addition to the introduction of more than 100 aluminum door and window processing and assembly lines, it has also introduced profile extrusion, oxidation coloring, powder spraying, insulating glass, mold processing, group punching, glass cutting, computer-aided design, door and window performance testing, and sealing tops. , low-frequency induction heating furnace, strong stretching and straightening, cut-to-length cutting, aging treatment, electrophoretic painting, wastewater and alkali recovery, pure water preparation and other production lines or equipment. At the same time, technical drawings, raw material formulas, production processes, and product standards have been introduced. , product trademarks, etc. Most of the introduced software and hardware are at the advanced level in the 1980s, laying the foundation for the modernization of the aluminum doors and windows industry.

With the introduction of technology from various countries, various series of doors and windows from various countries have also been introduced, which is also unique in the world. According to incomplete statistics, there are currently 6 major categories in my country's construction aluminum products industry, more than 30 series and thousands of specifications, among which door and window series mainly include 38, 40, 42, 46, 50, 52, 54, 55, 60, 64, 65, 70, 73, 80, 90, 100; curtain wall series include 60, 100, 120, 125, 130, 140, 150, 155. Profile colors include silver, bronze, golden, maroon and other colors.

In addition to supplying domestic products, it also supplies products to Algeria, Sri Lanka, Liberia, Tunisia, Ethiopia, Zaire, Burkina Faso, Mauritania, Western Samoa, Benin, Uganda, North Korea, Jordan, Djibouti, Exported to Russia, the United States, Japan and other countries.

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