Copper Round Blanks

Product Description

Overview

Copper Round Blanks are typically thin, circular sheets made of copper or copper alloys. Due to their excellent physical and chemical properties, they are widely used in mechanical parts, electronic contacts, and heat dissipation components. They also have considerable collectible and decorative value. Our company has extensive experience in the production and export of non-ferrous metal products. For more product details, please get in touch with us by email.

Copper Features

• Copper's electrical conductivity is second only to silver among metals, making it highly efficient in transmitting current and suitable for applications such as circuit board contacts and electrode pads.
• It also offers excellent thermal conductivity, enabling rapid heat transfer, making it a popular choice for LED heat sinks and thermal pads for electronic components.
• It possesses sufficient hardness and toughness to resist deformation or breakage and withstand even minor impacts.
• Copper resists rusting in dry environments, and surface coatings (such as nickel or gold) can further enhance corrosion resistance and extend its service life.
• Copper is easily stretched, stamped, and cut, enabling the precise production of small discs with uniform thickness and smooth edges to meet diverse size requirements.
• The discs' simple structure allows for direct bonding, riveting, or gluing to the desired location, making them suitable for a variety of assembly scenarios without the need for complex processing.

Dimension

Copper Round Blanks Application

1. Electronics and Electrical

• Circuit Board Assemblies: Copper Discs serve as conductive contacts and connection pads on circuit boards, enabling current transfer between components.
• Batteries and Capacitors: Used as positive/negative pads in button batteries and as electrode substrates in supercapacitors, ensuring stable current output.
• Connector Accessories: Serving as contact pads in RF connectors and terminal blocks, they reduce current transmission losses.

2. Heat Dissipation and Cooling

• Electronic Component Cooling: Attached to the bottom of LEDs and power chips, they quickly dissipate heat and prevent overheating.
• Local Device Cooling: Copper Blanks serve as auxiliary heat dissipation pads for CPUs and graphics cards, or as heat dissipation module components for small appliances (such as routers).
• Heat Exchange Accessories: Serving as a heat transfer medium in micro heat exchangers, improving heat transfer efficiency.

3. Machinery and Hardware

• Sealing and Cushioning: Serving as small sealing gaskets in pipes and valves, or as cushioning washers between mechanical components, they reduce friction.
• Positioning and Spacing: Serving as positioning pads and spacers in precision instruments, they ensure precise spacing between components. Hardware Connectors: Serves as rivet washers and screw washers to enhance the stability and wear resistance of joints.

4. Chemical Engineering and Laboratory

• Laboratory Consumables: Serves as electrodes in electrochemical experiments (such as electrolytic cells and galvanic cell experiments) or as auxiliary accessories for reaction vessels.
• Anti-Corrosion Accessories: Serves as small anti-corrosion gaskets and test specimens in some mildly corrosive environments to monitor the degree of environmental corrosion.

5. Decoration and Crafts

• Jewelry Making: Serves as a base component for earrings and necklace pendants, or as a component in handmade jewelry.
• Home Decoration: Serves as wall decorations, furniture inlays, or festive decorations.
• Cultural and Creative Industries and Handicrafts: Serves as a component in notebook stickers, seal bases, and handicraft ornaments.

Process

① Select the type of copper material based on the application scenario. Cut the raw copper material (mostly copper coil or copper sheet) into fixed-size blanks, slightly larger than the final discs, to allow for machining margins.

② For extremely high-dimensional accuracy requirements, laser cutting can be used. A high-energy laser beam is used to cut the discs directly from the copper sheet.

③ Customized, special-shaped parts can be precisely milled using CNC milling equipment.

④ Grinding, chamfering, or drum polishing removes burrs and flash from the edges, ensuring smooth, non-sharp edges.

⑤ The surface can be polished, plated, or passivated to ensure surface finish and longevity.

⑥ Rigorous quality inspections, such as visual inspection, dimensional accuracy testing, conductivity testing, and component analysis, are performed.

Pictures

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