With the development of technology, the weight of aluminium-plastic sheet used in people's life is getting higher and higher, and its color is no longer as monotonous as it used to be. Current Aluminum Plastic Plate Processing
You can colour the color you want, but when we colour the aluminium plastic sheet, we will inevitably encounter the situation that the color cannot be dyed. Then, the origin of the color cannot be dyed on the aluminium plastic sheet.
The causes and treatment methods are as follows:
1. Insufficient thickness of anodic oxide film: The solution is to check whether the anodic oxidation process is standardized and whether the factors such as temperature, voltage and conductivity are stable, if different.
Often, please adjust the specifications accordingly. If there is no abnormality, the oxidation time can be prolonged appropriately to ensure that the film thickness is up to standard.
2. The PH value of dye solution is too high: at this moment, the PH value can be adjusted to the standard value by glacial acetic acid.
3. After oxidation, the workpiece is placed in the tank for too long: initiating timely dyeing, if this situation has occurred, the workpiece can be placed in the anodic oxidation tank or nitrate
Appropriate activation treatment in acid neutralization tank before dyeing can achieve good results.
4. Choose dyestuffs that have been decomposed or moulded. At this moment, dyestuffs need to be replaced and suitable dyestuffs should be selected.
5. Low oxidation temperature results in dense skin film: oxidation temperature can be properly improved.
6. Poor conductivity: Batch conductivity shown by poor contact of anode copper rod or cathode lead plate may be poor. Pay attention to cleaning anode copper rod and cathode lead plate to ensure good conductivity
Above is about the causes and treatment methods of stainless aluminium-plastic sheet. Now, aluminium-plastic sheet has become a common building material, which is widely used in buildings.
Exterior walls, interior walls, advertising signs and other decoration areas. However, along with people's increasingly high aesthetic requirements for decoration supplies, single color, stiff drawing of aluminum-plastic sheet
It is no longer able to satisfy the production demand.
The above information is our aluminium plate manufacturer collation and release hope to help you a little bit: !