Electrophoresis Electroplating and Painting
Electrophoresis, electroplating and painting are common surface treatment processes in jewelry processing, and they each have different applications and characteristics.
The following is a detailed introduction:
1. Electrophoresis
-Definition:The electrophoresis process is to migrate charged paint particles to the surface of the jewelry through an electric field to form a uniform coating. Common electrophoresis processes include cathodic electrophoresis (E-Coat) and anodic electrophoresis (Anodic Electrophoresis).
-Process flow:
Pretreatment: Clean and polish the surface of the jewelry to remove dirt and oxides.
Immerse in electrophoresis liquid: Immerse the jewelry in an electrolyte containing electrophoretic paint.
Apply an electric field: The paint particles are moved and attached to the surface of the jewelry through an electric field.
Curing: The coating is baked or chemically cured to make the coating hard and durable.
-Advantages:
Uniform coating: Ability to form a uniform and seamless coating that covers complex shapes and details.
Corrosion resistance: Provides good corrosion protection and enhances the durability of jewelry.
Environmental protection: Relatively environmentally friendly, high coating utilization rate.
-Disadvantages:
High equipment cost: Special electrophoresis equipment and process conditions are required.
Long processing cycle: The process may be long, especially in the curing stage.
2. Electroplating
-Definition: Electroplating is a process in which metal ions are deposited on the surface of jewelry through electrochemical reaction to form a metal coating. Common electroplated metals include gold plating, silver plating, chrome plating, etc.
Click to more more //www.jialinjewellry.com/brooch-pin-backs/gold-tie-tac-pin-backs-JP080203C1.html
-Process flow:
Pretreatment: Clean and polish the jewelry to improve the adhesion of the metal.
Electroplating: Place the jewelry in the electroplating tank and turn on the power to deposit metal ions on the surface of the jewelry.
Cleaning and curing: After electroplating, clean the jewelry, remove excess plating, and stabilize the coating.
-Advantages:
Decorative: It can provide beautiful metallic luster and color, and enhance the appearance of the jewelry.
3. Baking paint is a process in which powder or water-based paint is evenly sprayed on the surface of the jewelry, and then cured by heating to form a hard coating. Unlike traditional liquid paint, baking paint uses powdered paint.
-Process flow:
Pre-treatment: Clean and polish the accessories to ensure good powder adhesion.
Spraying powder: Use a spray gun to evenly spray the powder coating on the surface of the accessories.
Baking and curing: Put the sprayed accessories into the oven for heating and curing, and the powder melts at high temperature to form a hard coating.
Finished effective can be made via Paint process, click to know more
-Advantages:
Strong durability: The baking paint coating is wear-resistant, corrosion-resistant, and not easy to fade.
Environmental protection: Powder coating does not contain solvents, which reduces the release of volatile organic compounds (VOC).
Uniform effect: A uniform and thick coating can be formed.
-Disadvantages:
High processing temperature: A higher curing temperature is required, which may not be suitable for some materials.
Equipment cost: Special spraying and baking equipment is required.
Summary
-Coating uniformity:
Electrophoresis: uniform coating, suitable for complex shapes.
Electroplating: thin coating, suitable for accessories that require metallic luster.
Painting: thick coating, evenly surface.
-Durability:
Electrophoresis: corrosion-resistant, suitable for long-term use.
Electroplating: strong protection, but thin coating, easy to wear.
Painting: strong wear and corrosion resistance, long-lasting and durable.
-Application scenarios:
Electrophoresis: used for accessories that require corrosion resistance and uniform coating, such as automotive parts.
Electroplating: used to enhance the appearance of accessories and increase metallic luster, such as metal accessories.
Painting: used for accessories that require durable and thick coating, such as home decoration, tools, etc.
According to the design requirements and usage scenarios of accessories, electroplating is mainly metallic color, baking paint is solid color, and electrophoresis is more like a combination of them. We can choose the appropriate process according to the design style to optimize the appearance and performance of accessories.
This article was created by Dongguan Jialin Hardware Jewelry Co., Ltd. It introduces 3 commonly used surface treatment processes in jewelry processing, that's are electrophoresis, electroplating and painting. In addtion, it explained each advantages and disvantages.Welcome to contact us if any queries.
Hand-feel Paint and Rubber Paint
Standards for Distinguishing the Quality of Epoxy
