Manufacturers implement die casting surface treatments for acquiring a finished metal product with increased functional and aesthetical characteristics. Die casting manufacturers prepare the component surface either during the last phase of the process or during any other step the die casting process.
Die casting surface treatments are applied for a number of reasons such as for improving the finished product’s chemical resistance, wear resistance, corrosion resistance, to remove flaws and blurs, for modifying the electrical conductivity of the metal, and to improve the aesthetic appeal. The quality of the finished product (both aesthetic and technical) depends entirely on the type of surface treatment.
Manufacturers implement a certain die casting and preparation process for metal components based on the demands of the customer. Die casting surface treatments are divided into two different categories. The first type of die casting surface treatment considers only a few factors like external agent resistance, physical characteristics, and chemical improvement.
On the other hand, the second type of die casting surface treatment has an aesthetic function. However, both these processes are performed on the surface of the product with a layer of a different material in it. The layer thickness of the finished product will also depend on the type of die casting surface treatment implemented by manufacturers.
Below are some of the most popular and common types of deposition process for both the processes.
- Painting
Manufacturers spray a liquid material to the surface of the die casting component during this particular deposition process.
- Polymerization
Manufacturers use electrostatic effects to drop off a solid material as dust on the component surface. The phase material is also subjected to high temperate until it reaches the stage of polymerization.
- Electrolytic cells
During this deposition process, the die cast component is linked to an electric circuit, which acts as a cathode while the secondary materials serve as an anode.
It is of significant importance to prepare the product surface before applying a certain type of die casting surface treatment. This is because most of the surface treatments are not capable of covering defects or imperfections that are caused by the die casting process. If you prepare the product surface before performing a die casting surface treatment, then it will help you to avoid defects such as surface porosity and air entrapments.