Polishing, coating (such as paint or powder coating), electroplating, and anodizing are among the common ones.
In our one-stop die-casting factory, no matter what manufacturing process or surface effect is used, we can achieve it. We wish you the realization of your dream parts!
Surface Treatment | Description | Material | Color |
---|---|---|---|
Powder spraying
/ coating |
Powder spraying is to spray powder coating onto the surface of die castings with powder spraying equipment. Under the action of static electricity, the powder will be evenly adsorbed on the surface of die castings to form a powder coating. The powder coating is leveled and solidified after high-temperature baking to become the final coating with different effects of powder coating; the texture can be adjusted to various effects, such as glossy, sand texture, foaming, etc. | Zinc / Aluminum alloy | black / white |
Baking paint
|
Baking varnish is a painting process, which involves spraying several layers of paint on a die-casting that has been polished to a certain degree of roughness, and then baking it at high temperature to set the shape. This process currently has relatively high requirements for paint, and the paint must have good color rendering. It is mainly divided into two categories: low-temperature baking varnish and high-temperature baking varnish. The temperature of low-temperature baking varnish is between 140°C and 180°C, and the temperature of high-temperature baking varnish is between 280°C and 400°C. Whether to use low-temperature baking varnish or high-temperature baking varnish depends on the type of paint being baked. | Zinc / Aluminum alloy | Any color |
Passivation
|
Passivation is the process of treating metal in nitrite, nitrate, chromate or dichromate solution to form a chromate passivation film on the metal surface. It is often used as a post-treatment for zinc and cadmium coatings to improve the corrosion resistance of the coating; protect non-ferrous metals; improve the adhesion of paint films, etc. | Zinc / Aluminum alloy | white |
Oxidation
|
Aluminum alloy surface oxidation is suitable for conductive oxidation, and aluminum or aluminum profiles are suitable for anodizing. The oxidation colors of aluminum alloys are generally natural color and sky blue. Anodizing is carried out under high voltage, and it is an electrochemical reaction process; conductive oxidation does not require electricity, but only needs to be immersed in the potion, and it is a pure chemical reaction. Anodizing takes a long time, often tens of minutes, while conductive oxidation only takes a few tens of seconds. | 6061 / 6063 / 7075 | Any color |
Electroplating
|
Electroplating is the process of depositing metal or alloy on the surface of a workpiece by electrolysis to form a uniform, dense, and well-bonded metal layer. Simply put, it is a change or combination of physics and chemistry. | Zinc / Aluminum alloy | Any color |
Electrophoresis
/ E-coat |
E-coat, also known as paint deposition, is a process that uses electricity to attract paint products to metal surfaces. It is often used alone because of its excellent coverage, but can also be used as a base coat for other coatings such as powder coating. Traditionally, it has been used for functional purposes such as protection, rather than for decorative purposes. | Zinc / Aluminum alloy | black / white |
Sandblasting
|
Sand blasting uses compressed air as the power to form a high-speed jet beam, and sprays abrasives (steel sand, brown corundum, glass beads, corundum, etc.) at high speed onto the surface of the die-casting to be processed, so that the appearance of the outer surface of the die-casting changes. Due to the impact and cutting effect of the sand on the surface of the die-casting, the surface of the die-casting obtains a certain degree of cleanliness and different roughness, and the mechanical properties of the surface of the die-casting are improved, thereby improving the fatigue resistance of the die-casting, increasing the adhesion between it and the coating, extending the durability of the coating, and also facilitating the leveling and decoration of the coating. | Zinc / Aluminum alloy | black / white / grey |
Polishing
/ grinding |
Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and smooth surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media. | Zinc / Aluminum alloy | Natural |
Chromate
|
Chromating refers to a treatment method that causes metal to react chemically with chromate to form a stable chromate film on its surface. | Zinc / Aluminum alloy | Not suitable |
Wire drawing
/ Surface brushing |
Surface brushing is a surface treatment method that forms lines on the surface of the workpiece by grinding the product to achieve a decorative effect. | Zinc / Aluminum alloy | Not suitable |
Electrostatic spraying
/ coating |
It refers to the process in which atomized negatively charged paint particles fly toward a positively charged workpiece under the action of a DC high-voltage electric field to obtain a paint film. This is called electrostatic spraying. | Zinc / Aluminum alloy | Any color |
The advantages of die casting surface finishing include:
We have extensive die casting surface finishing expertise and advanced equipment, ensuring quality and diverse options.
Tailor solutions to your needs with strict quality control to meet or exceed standards.
Continuously innovate to offer latest services and a wide range of finishing choices.
Deliver on time, cost-effectively, build long-term relationships, and focus on your concerns.
Your ideas should be matched with the best solutions. Use our rich surface treatment methods to improve stability and aesthetics. Product surface treatment technology can meet both practical needs and aesthetic needs. Each method has specific conditions, such as material, color, texture and cost. Instantly improve your expected effect.
QWhat are the most common surface finishing methods for die casting?
Polishing, coating (such as paint or powder coating), electroplating, and anodizing are among the common ones.
Q How does surface finishing improve the performance of die-cast parts?
It can enhance corrosion resistance, durability, and functionality, as well as improve the appearance and add value.
QCan you achieve different colors with die casting surface finishing?
Yes, through various coating options like paint or specific electroplating processes.
Q How long does the surface finishing typically last?
This depends on many factors such as the type of finish, usage conditions, and maintenance, but a well-done surface finishing can last for a significant time.
QIs it possible to repair a damaged surface finish?
In some cases, it may be possible to repair or reapply the finish, but it depends on the extent of the damage.
QWhat is the cost of different surface finishing options?
Costs vary depending on the method, materials used, and complexity of the finish.
QHow do I choose the right surface finishing for my die-cast part?
Consider factors such as the part's application, environmental conditions, aesthetic requirements, and budget.