> The essence of technology lies in providing accurate solutions to every unique need.
Today's power bank market product forms are ever-changing, from high-end models with metal texture to light and colorful portable models, the choice of materials is increasingly diversified. This diversity brings a key technical challenge: How to achieve the same exquisite and lasting logo effect on completely different surfaces of materials? **
As a professional partner in the field of laser marking of power banks, Fly Laser has been deeply engaged in this field for many years and has accumulated rich process experience in dealing with various materials. This article will analyze in detail the marking process solutions of Fly Laser on different power bank shell materials.
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## Metal material: marking process of aluminum alloy shell
Aluminum alloy is the first choice material for high-end power banks, and its marking requires the problem of balance between the highest contrast and the highest depth.
Fly Laser uses a fiber laser marking machine to accurately control the laser parameters to generate a dense oxide film on the surface of the aluminum alloy. The thickness of this film is only micron level, but it can present a dark black mark through optical interference effects.
**Key technical parameters**:
- Laser power: 20-30W (adjustable)
- Marking speed: 1000-1500mm/s
- Filling line spacing: 0.02-0.05mm
- Frequency: 20-50kHz
The advantage of this "low temperature oxidation" process is that the marking is clear and durable, and it does not damage the material matrix, and does not affect the structural strength and sealing performance of the shell. For parts that require conductive connections, insulating marking can also be achieved through special processes to ensure product safety.
## Engineering Plastics: Fine marking of PC/ABS materials
PC/ABS alloy is the most commonly used shell material for power banks. The difficulty in marking is to avoid material carbonization and deformation.
Fly Laser has developed the lowest power marking mode specially used for plastic materials. By precisely controlling the heat-affected zone, the surface of the material is slightly foamed or colored, forming a sharp contrast.
**Craftspots**:
1. **Fine power control**: Use 5-10W lower power to avoid excessive heating
2. **High-speed scanning**: Shorten the laser residence time and prevent heat accumulation
3. **Auxiliary gas cooling**: Use compressed air to synchronously cool the marking area
This "cold processing" method can form white or light gray marks on the plastic surface, with clear edges without burrs, fully meeting the requirements for markings in international safety standards such as UL certification.
## Marking challenges and solutions for surface treatment materials
### Anodized aluminum shell
For aluminum materials that have been anodized, Fly Laser uses the ** peeling layer marking process to accurately remove the surface coloring layer and expose the silver-white primary color of the bottom layer, forming a sharp contrast. The key is to control the depth of the peeling layer to ensure that the oxide film protection function is not damaged.
### Electroplating surface
For electroplating shells, we have developed the ** micro-carving process, which changes the surface microstructure through lasers, forms a diffuse reflection area, and forms a visual contrast with the surrounding mirror. This process does not affect the corrosion resistance of the coating.
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## Special process: Advanced applications for realizing personalized design
In addition to basic logos, Fly Laser also supports a variety of special marking processes that enhance product added value:
**Color marking technology**: By controlling laser energy to produce interference effect on the surface of stainless steel, it can achieve gold, blue and other colors to mark, greatly improving the product level.
**3D Dynamic Marking**: For curved shells, Fly Laser is equipped with a 3D Dynamic Focusing System to ensure that the marking effect of each point on the undulating surface is consistent and clear.
**Deep Engraving**: Through repeated markings, three-dimensional engraving effect can be achieved with a depth of 0.1-0.5mm, suitable for areas such as brand logos that need to be highlighted.
## Fly Laser's comprehensive technical support system
Choosing Fly Laser means getting ** all-round process support**:
**Free proofing service**: We provide free material testing and proofing to each customer to ensure that the best process parameters are determined before mass production.
**Process Parameter Database**: Fly Laser has a process parameter library covering hundreds of materials, which can quickly provide mature solutions to new customers.
**Technical Personnel Training**: We not only provide equipment, but also provide complete process training to ensure that customer operators are proficient in the marking techniques of various materials.
**Fast after-sales response**: The professional technical team provides remote or on-site technical support within 24 hours to ensure that production is not interrupted.
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Fly Laser's material adaptability not only solves current production needs, but also reserves sufficient space for customers' future product upgrades. Choosing Fly laser means obtaining a logo solution that can evolve with the changes in the market.
**Fly Laser - uses professional craftsmanship to give each material a unique identity mark. **
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