Polishing
Surface Finishing
HYDieCasting
Surface finishing refers to the process of modifying a material's surface to enhance its appearance, functionality, and durability. Techniques like polishing, plating, and coating are used to achieve a desired texture, improve corrosion resistance, and ensure a consistent, smooth surface. In industries like automotive and electronics, high-quality surface finishing is crucial for both aesthetic appeal and performance, directly impacting product quality and customer satisfaction.
A high-quality surface finish improves the visual appearance of die-cast parts, making them more attractive and desirable, especially in consumer-facing industries like automotive and electronics.
A smooth surface finish can enhance the functional properties of a part, such as reducing friction or improving aerodynamic efficiency, contributing to better overall performance.
A good surface finish minimizes the risk of microcracks and pores, protecting the part from moisture and corrosive agents, thereby improving its durability.
A superior surface finish is often perceived as a mark of quality, increasing customer satisfaction and giving the product a competitive edge in the market.
In order to provide our customers with a one-stop solution, we are able to offer you a variety of high quality surface treatment options to match your end product. All our finishes are ROHS and REACH compliant.
Polishing
Polishing refers to the processing method that uses mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and flat surface. It is a modification and processing of the workpiece surface using polishing tools and abrasive particles or other polishing media.
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Electroplating
Electroplating is the process of depositing metal or alloy on the surface of the workpiece by electrolysis to form a uniform, dense and well-bonded metal layer, which is called electroplating. Simple understanding is the change or combination of physical and chemical.
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Baking paint
Baking paint is a spray paint production process. The method is to polish the die casting parts to a certain degree of roughness and spray several layers of paint on the substrate, and then bake and set at high temperature. At present, this process has higher requirements for paint and better color rendering. It is mainly divided into two categories: low-temperature baking paint and high-temperature baking paint. The temperature of low-temperature baking paint is between 140°C and 180°C, and the temperature of high-temperature baking paint is between 280°C and 400°C. Depending on the paint, whether to perform low-temperature paint or low-temperature paint is selected. High temperature paint.
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Powder coating
The powder coating is sprayed onto the surface of the die casting with a powder spraying equipment. Under the action of static electricity, the powder will be uniformly adsorbed on the surface of the die casting to form a powder coating. After high temperature baking and leveling curing, the powder coating becomes the final coating of different types of powder coatings; the texture can be adjusted to various effects, such as smooth surface, sand texture, foaming, etc.
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Passivation
Passivation is a process in which a metal is treated in a 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; the protection of non-ferrous metals; and the adhesion of the paint film, etc.
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Sandblasting
Sandblasting is to use compressed air as the power to form a high-speed jet beam, and spray abrasives (steel grit, brown corundum, glass beads, emery, etc.) at high speed to the surface of the die casting to be treated, 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 can obtain a certain cleanliness and different roughness, so that the mechanical properties of the surface of the die casting can be improved, thus improving the fatigue of the die casting. It increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also beneficial to the flow and decoration of the coating.
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Anodizing
Anodizing is a surface treatment process that uses electrochemistry to form a layer of Al2O3 (aluminum oxide) film on the surface of aluminum and aluminum alloy. Through anodic oxidation, the surface state and performance of the material can be changed, thus improving corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface.
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Cataphoresis
Cataphoresis, also called electrophoresis deposition(cationic electrophoresis), is a surface treatment that consists of electrochemically depositing an epoxy-type coating on a metal part (steel, cast iron, aluminium, magnesium, etc.)
Learn More>The choice of alloy greatly affects die-cast surface finish. Aluminum alloys are favored for their strength-to-weight ratio, ensuring high-quality finishes. Material properties like hardness, ductility, and grain structure are key in determining the final surface quality.
Mold design, quality, and condition are crucial for surface finish. A smooth, well-maintained mold yields better results, while a worn or poorly designed mold can cause defects. The texture and complexity of the mold also impact the final product's smoothness and consistency.
Controlling injection speed, pressure, and temperature in die casting is key to achieving a smooth, consistent surface finish. Proper parameter management ensures effective mold filling, reducing surface roughness and minimizing defects.
Die casting is preferred in the consumer electronics industry because it allows for the production of lightweight and intricate parts with excellent surface finish.
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Die casting is widely used in the automotive industry for the production of various auto parts due to its efficiency, precision, and cost-effectiveness. Some common auto parts manufactured through die casting include Engine Components, Car Charger Housing and etc.
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Die casting is utilized in the production of various components for medical equipment, offering precision, consistency, and the ability to create complex shapes. Additionally, the efficiency of the die casting process supports the scalability needed for mass production in the medical industry.
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Die casting ensures that smart home devices have sturdy and well-designed components that contribute to both functionality and aesthetics. The process allows for the creation of intricate shapes with precision, meeting the design requirements of modern smart home technology.
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