The general principle of the production of anodized film of anodized aluminum plate. The aluminum plate is used as the anode and placed in the electrolyte solution. The electrolytic process is used to form an aluminum oxide film on the surface.
The selection of anodized electrolyte is first determined by the oxide film used. For decoration, wear-resistant, corrosion-resistant thick film. The selected electrolyte should have a slightly soluble effect on the oxide film. To get a thin and dense oxide film, an electrolyte that is almost insoluble in the oxide film is used.
1. sulfuric acid
2. oxalic acid
3. chromic acid
4. certain sulfo organic acids.
Direct Current Anodizing
Effect: It can shorten the production time to the pulse of the required thickness. The film is thick and uniform. And the corrosion resistance is significantly improved.
with sulfuric acid
Mixed acid and sulfo organic acid are the main solutions of natural coloring anodizing
Hard film (thick film)
Bright modified layer
Semiconductor barrier layer and other anodizing treatment.
In many anodizing methods. The most commonly used method is direct current sulfuric acid anodizing. Because it has an anodizing process suitable for aluminum and most aluminum alloys. The film is thick, hard and wear-resistant, and can be sealed after sealing. Get better corrosion resistance. Colorless transparent film, strong adsorption capacity, easy to color. Low processing voltage and low power consumption. There is no need to change the voltage cycle during processing. Conducive to continuous production and automatic operation. Sulfuric acid has less harm than chromic acid. The advantages of wide supply and low price. This method is mainly used in the surface treatment production line of Chinese building aluminum profiles.
Anodized aluminum plate
A: Anodized aluminum plate is a plate made of raw material aluminum plate after finishing. and then forming a protective film on the surface through anodizing process.
A: Before the aluminum plate is used as the anode. We use a suitable rubber plug to tightly block the hole, so that the anode plate will not reach the hole during the anode process.
A: For the aluminum plates in inch sizes, we usually look for suitable suppliers on the domestic B2B platform. If we do not find them, we will go to the international station platform to find the suppliers with the right price.
A: Anodizing will make the part size smaller. The anodizing pre-treatment of aluminum alloy will go through sandblasting, alkaline etching, chemical polishing and other treatments. Which will make the substrate smaller.
Also, if the oxidation treatment has undergone a heavy film removal process. The substrate has become smaller, and the film removal corrosion. Such as the use of alkaline film removal, will further affect the size of the finished product.
A: Explanation of terms of anodizing process flow Mechanical and chemical surface treatment Metals need to be polished or brushed, then degreased and degreased. And the quality of appearance is checked to prepare the surface for next processing procedures. Anodic oxidation forms a thick aluminum oxide film, that is, anodized film, by the means considered. That is, the oxide film is adsorbed. This is a prerequisite for adsorption coloring. Ⅲ dyeing deposits dye molecules in the micropore structure of the anodized film. Ⅳ Seal the pores to seal the fine pores, so that the dye is fixed in the oxide film
Aluminum Workpiece → Upper Hanger → Degreasing → Water Washing → Alkali Etching → Water Washing → Immersion → Water Washing → Anodizing → Water Washing → Deionized Water Washing → Dyeing or Electrolytic Coloring → Water Washing → Deionized Water Washing → Sealing → Water Washing → Lower Hanger
We can make gold anode,blue anode,blue anode,black anode,pink anode etc.Besides,we also can make hard anode in grey,nature,black.
We sell the anodized aluminum plate in pieces.
We sell the anodized aluminum plate in boxes.
We also can custom-make anodized aluminum plate.
We also can wholesale anodized aluminum plate in different colors,like blue,gold,pink,black,nature etc.
We can send the goods by air or by sea.Usually ,if weight is less than 100kg,we will send them by air,if more than 100kg,we will send them by sea.
Anodized aluminum plate suppliers: Yichangsheng,Chaomei,Qifeng