Embossed copper tapeIt is a product that forms regular microstructure patterns (such as diamond patterns, grid patterns, mirror patterns, etc.) on the surface of copper strips to enhance their reflectivity, decorativeness and functionality. It is commonly usedPhotovoltaic reflectors, outer layers of electronic and electrical conductors, building decoration, electromagnetic shielding, labels, etc.The core of this isEmbossing and rolling technology.
Advantages and benefits of embossed copper strip rolling technology
1. Enhanced reflective performance
- The microstructure embossed texture changes the angles of light refraction and reflection, greatly improving the surface's diffuse reflection ability and making the light diffuse evenly.
- In the photovoltaic field, it can improve the light capture rate (Light-catching copper tape), reduce energy consumption.
2. Improve decoration and aesthetics
- Form a unique metallic luster texture to improve the product appearance quality;
- Commonly used in high-end electronic products, metal labels, shell trims and other scenarios.
3. Enhance surface hardness and wear resistance
- The embossing process improves the surface hardness through local work hardening;
- Increase the friction coefficient to prevent slipping and scratching.
4. Improve bending and tensile stability
- The embossed texture on the surface can effectively disperse external stress and resist deformation and fracture. It is particularly suitable for flexible connectors and anti-bending occasions.
5. Improved adhesion and coating performance
- The surface roughness after embossing is moderate, which is conducive to the adhesion of adhesives, conductive pastes or coatings;
- Suitable for applications such as FPC, EMI shielding, structural adhesive bonding, etc.
6. Enhanced electromagnetic shielding performance (specific pattern)
- After forming a specific periodic structure, it interferes with and absorbs electromagnetic waves of certain frequencies, thereby improving the EMI shielding effect.
Technical advantages of embossing rolling equipment
| Technical Points | describe |
|---|---|
| Precision engraving of flower rollers | Use laser etching or CNC engraving to ensure the pattern is consistent in depth and high in precision (±0.005mm) |
| Constant tension control | Ensure that the copper strip does not deviate or crack during the rolling process, and avoid dislocation embossing |
| Constant temperature control system | Control the temperature rise during rolling to prevent thermal expansion and contraction from causing pattern deformation or copper strip warping |
| Oil selection | Specially formulated embossing rolling oil, which has good lubricity while maintaining clear lines and forming |
| Automatic deviation correction & automatic thickness correction system | Achieve continuous embossing of large rolls, improving productivity and consistency |
Summary of the advantages of embossed copper tape compared with ordinary copper tape:
| Comparison Items | Ordinary copper strip | Embossed copper tape (Reflective copper tape） |
|---|---|---|
| Reflective ability | generally | Significantly enhanced |
| Decorative | Ordinary metallic luster | Beautiful pattern and three-dimensional texture |
| Mechanical strength | Single material strength | Strengthen the surface bending and wear resistance |
| Adhesion ability | Smooth surface is not conducive to adhesion | Surface roughening facilitates coating and bonding |
| Surface defect masking | Scratches and blemishes are easily visible | Embossed structure can partially cover imperfections |
| EMI protection performance | No structural shielding effect | Specific structures have shielding functions |
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