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Analysis of common corrosion phenomena of aluminum profiles

Dongguan aluminum profile pitting corrosion, also known as hole corrosion, is a very localized corrosion pattern that produces needle-like, point-like, and hole-like shapes on metal. Pitting corrosion is a unique form of anode reaction and is an autocatalytic process. According to the manufacturers of aluminum profile connectors, pitting of aluminum can occur in the atmosphere, fresh water, or neutral aqueous solutions, and severely can cause perforations, but corrosion holes may eventually stop developing and the amount of corrosion will remain at a limit.

Analysis of aluminum production process

Dongguan aluminum profile production includes three processes: casting, extrusion and oxidation. 1. Fused casting: Fused casting is the first process of aluminum production. (1)配料:根据需要生产的具体合金牌号,计算出各种合金成分的添加量,合理搭配各种原材料。 The main process is as follows: (1) Ingredients: According to the specific alloy grade to be produced, calculate the addition amount of various alloy components, and reasonably mix various raw materials.

Factors Affecting Oxidation Coloring of Aluminum Alloy

At present, the application of single-color anodized aluminum alloy building profiles in practice has been significantly reduced, and electrolytic coloring oxide films, organic coloring oxide films, porcelain oxide films, hard oxide films, and imitation stainless steel oxide films based on them have been significantly reduced. Has been widely used. For the oxide film coloring technology, the factors affecting aluminum oxide coloring are:

Introduction to the melting and casting process of industrial aluminum profiles

1. Materials: According to the needs of the detailed alloy trademarks produced, calculate the amount of various increased alloy compositions and reasonable various materials. 2. Smelting: Excellent raw materials participate in melting in the smelting furnace according to the process requirements, and after degassing, the essence of slag removal is useful to remove the mixed gas. 3. Forging: Under the certain conditions, the outstanding forging process of liquid aluminum smelting is formed by deep forging system and cooling forging to form round cast rods of various specifications.
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