Aluminum plate refers to aluminum materials with a thickness of 0.2mm to 500mm, a width of 200mm and a length of less than 16m. Aluminum materials below 0.2mm and aluminum strips or bars within 200mm (of course, with the advancement of large equipment, there are more aluminum plates with a maximum width of 600mm).
Aluminum plate refers to a rectangular plate made by rolling aluminum ingots, which can be divided into pure aluminum plate, alloy aluminum plate, thin aluminum plate, medium and thick aluminum plate, and patterned aluminum plate.
Aluminum plates are usually divided into the following two categories:
1. According to alloy composition:
High-purity aluminum plate (rolled from high-purity aluminum with a content of more than 99.9)
Pure aluminum plate (basically rolled from pure aluminum)
Alloy aluminum plate (composed of aluminum and auxiliary alloys, usually aluminum-copper, aluminum-manganese, aluminum-silicon, aluminum-magnesium, etc.)
Composite aluminum plate or brazing plate (special-purpose aluminum plate material obtained by combining multiple materials)
Aluminum-clad aluminum plate (aluminum plate covered with thin aluminum plate for special purposes)
2. According to thickness: (unit: mm)
Thin plate (aluminum sheet) 0.15-2.0
Conventional plate (aluminum sheet) 2.0-6.0
Medium plate (aluminum plate) 6.0-25.0
Thick plate (aluminum plate) 25-200 Ultra-thick plate 200 or more
1. Lighting 2. Solar reflectors 3. Building exterior 4. Interior decoration: ceilings, walls, etc. 5. Furniture, cabinets 6. Elevators 7. Signs, nameplates, bags 8. Car interior and exterior decoration 9. Interior decorations: such as photo frames 10. Household appliances: refrigerators, microwave ovens, audio equipment, etc. 11. Aerospace and military, such as China's large aircraft manufacturing, Shenzhou spacecraft series, satellites, etc. 12. Mechanical parts processing 13. Mold manufacturing 14. Chemical/insulation pipe coating. 15. High-quality shipboard
The brand name is representative in aluminum alloys. Let's take the 7075T651 aluminum plate brand name as an example. The first 7 represents the aluminum and aluminum alloy group - aluminum-zinc-magnesium alloy. Aluminum and aluminum alloy groups are divided into nine categories. Among them, 1, 3, 5, 6, and 7 series of aluminum and aluminum alloys are the main ones, and other series are less likely to be used in actual use.
Category 1: Series 1: Industrial pure aluminum
Category 2: Series 2: Aluminum-copper alloy
Category 3: Series 3: Aluminum-manganese alloy
Category 4: Series 4: Aluminum-silicon alloy
Category 5: Series 5: Aluminum-magnesium alloy
Category 6: Series 6: Aluminum-magnesium-silicon alloy
Category 7: Series 7: Aluminum-zinc-magnesium-copper alloy
Category 8: Series 8: Other alloys
Category 9: Series 9: Spare alloys
Overproduction in five major areas of aluminum sheet materials - Analysis of overcapacity in five major areas of aluminum sheet materials, ceramic aluminum sheets, punched aluminum sheets, aluminum ceilings, mesh aluminum sheets, carved aluminum sheets, special-shaped tile sheets, aluminum sheet materials and other products "From 100 million tons to 800 million tons now, we are still talking about overcapacity," said the deputy secretary-general of the China Iron and Steel Association in an interview with China Investment. Recently, the China Iron and Steel Association announced that China's steel production capacity has reached 800 million tons, but in fact, only 400 million tons of compliant steel production capacity is available, and 400 million tons of production capacity has not been approved by the state.
Since being labeled as overcapacity in 1999, the capacity of the steel industry has continued to expand with the growth of demand. On the basis of demand forecasts, the state has continuously and seriously formulated plans for the expansion of the steel industry's capacity. However, as demand has repeatedly exceeded the planned capacity, the market's capacity has also repeatedly exceeded the national plan. For example, the State Council's "Steel Industry Adjustment and Revitalization Plan" in early 2009 predicted that China's crude steel consumption would be 430 million tons, but the actual consumption reached 570 million tons. The China Iron and Steel Association estimated that crude steel consumption would reach 680 million tons, while the country's approved steel production capacity was only 400 million tons at the time, and there were still 400 million tons of illegal production capacity in the market to make up for the demand gap.
In fact, in the past 10 years of government micro-control, China's steel, cement, non-ferrous metals and other industries have been defined as "overcapacity" industries, and have been subject to relatively strict land, finance, taxation, project approval and other industrial policies.