Excess production in five fields of aluminum plate material supply - analysis of overcapacity in five fields of products such as aluminum plate material, ceramic aluminum plate, perforated aluminum plate, aluminum ceiling, mesh, strong aluminum plate, carved aluminum plate, profiled tile and roofing plate, aluminum plate material supply "from 100 million tons to 800 million tons now, we are still talking about overcapacity", said the Deputy Secretary General of China Iron and Steel Industry Association in an interview with China Investment. Recently, CISA announced that at that time, China's steel production capacity had reached 800 million tons, but in practice, the compliant steel production capacity was only 400 million tons, and 400 million tons of production capacity had not been approved by the state.
Since being labeled as overcapacity in 1999, the capacity of the steel industry has been expanding constantly with the increase of demand. On the basis of the demand forecast, the state has constantly made serious plans for capacity expansion of the steel industry. However, because demand has repeatedly broken the planned capacity, the market capacity has repeatedly broken the national plan. For example, in the Steel Property Adjustment and ZTE Plan of the State Council in early 2009, it was predicted that China's crude steel consumption in the past was 430 million tons, but the actual consumption in the past was 570 million tons. CISA estimated that crude steel consumption would reach 680 million tons, while the steel production capacity agreed by the state at that time was only 400 million tons, and 400 million tons of illegal production capacity in the market would compensate for the demand gap.
In fact, in the recent 10 years of micro regulation and control by the local authorities, the aluminum plate data has been continuously defined as "overcapacity" industries in China's steel, cement, non-ferrous metals and other industries, and applied to relatively serious property policies such as territory, finance and taxation, and project approval.
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Brushed aluminum plate: the manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. The main process flow is divided into three parts: deaster, sand mill and water washing. In the aluminum plate wire drawing process, the special coating technology after anodizing can make the aluminum plate surface generate a coating layer containing the metal component, clearly showing every fine trace, so that the metal matt has a fine luster.
Aluminum oxide plate: aluminum plate is formed by electrolysis under specific conditions and under the action of impressed current by placing aluminum plate in corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as anode. The aluminum plate of the anode is oxidized, and a thin layer of aluminum oxide is formed on the surface, with a thickness of 5~20 μ m and a hard anodic oxide film of 60~200 μ m.
PS aluminum plate (advertising aluminum plate, also known as printed zinc plate and newspaper plate): aluminum plate with printed pattern thickness of 025 or 03 on the back.
Mirror aluminum plate: refers to the aluminum plate with mirror effect on the surface of the plate through rolling, polishing and other methods.
Embossed aluminum plate can also be called aluminum embossed plate: it is an aluminum product that forms various patterns on the surface after calendering on the basis of aluminum plate. It is widely used, mainly in packaging, architecture, curtain wall, etc.
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