The English name of burr is veining. Generally, there are scraps and tiny microscopic metal particles on the surface of metal parts, which are called burrs. The more glitches, the lower its quality standard. Therefore, when enterprises produce products, they will try to reduce the burrs as much as possible. Causes of burrs: a. The shearing blade becomes dull and the gap is too large; the saw blade is dull or improperly installed; b. The punch is worn or improperly installed; c. Improper flame cutting operation; d. The welding system is not standardized.
Hazards of PCB burrs: The main hazards of printed circuit board burrs are to reduce the quality of the product, making the product less beautiful, and at the same time weaken the outgoing strength of the signal, reduce the transmission distance, easily cause signal interference, and reduce the mechanical strength. Easy to fall off!
When it comes to how to deburr a PCB circuit board, many people immediately think of washing and grinding. Washing and grinding is the most commonly used deburring method. It is a way to remove burrs by using the friction between the grinding stone and the workpiece. Compared with many deburring methods, the initial investment cost is low and the operation is simple. However, with the continuous improvement of industrial requirements, its dominance of the world begins to break down, and more and more new methods are used in the field of deburring. , see more electrochemical methods, electrothermal methods, sandblasting, ultrasonic and so on. The following jigsaw technology introduces a new deburring method: chemical deburring method.
The process is a soaking process, and CULLYGRAT is a solution. This circuit board product uses the difference in the structure of the substrate and the burr to selectively remove the burr of the PCB circuit board through the principle of vertical reaction. Compared with traditional chemical deburring, this circuit board process has made great progress in all aspects, especially in terms of reliability, repeatability, stability, environmental protection, etc. It is far superior to traditional processes. The process performance is briefly described as follows.
1. Improve the surface finish of circuit board products
Using this process to deal with burrs can also improve the surface finish of the circuit board of the workpiece, so as to achieve the polishing effect. When the workpiece is processed in various ways, its plane has a roughness to varying degrees. When it is processed by this process, this index can be reduced very well, because this process can selectively react vertically to the product. , so that the uneven surface gradually approaches the flat surface.
2. Efficient and time-saving
Compared with the traditional process, the process has been greatly improved in processing time. Using this process for deburring treatment generally only takes a few minutes, and the shortest product only takes tens of seconds. More specific circumstances depend on the material of the product, the size of the burr and the processing requirements of the customer. Another manifestation of high efficiency and time saving is that the process can be applied to mass production on a large scale. Due to the high reproducibility and reliability of this product, the processed products have extremely high consistency in terms of precision, color and size, especially in terms of size control, and the precision can reach microns. Require. These all provide a guarantee for its wide-ranging application in industry.
3. It can enhance the anti-corrosion and anti-corrosion ability of the product
Using this process can better combine the anti-rust layer with the product, so as to better protect the workpiece. For this process, a customer has done a salt spray test, and it was found that some products treated by this process can greatly extend the salt spray test time.
4. Safe and reliable, environmentally friendly and economical, easy to operate
Using this process for deburring treatment has the characteristics of safety, reliability and environmental protection. There are two main aspects of safety. First, product safety, which mainly refers to the high quality assurance of the processed products, and the mechanical properties and physical and chemical properties of the products will not be changed due to the process. In addition, it also includes the safety performance of the product itself, which has MSDS safety certification. Second, operation and personnel safety. The process does not require specialized technical personnel to operate, and the operators only need to undergo simple training before they can take up their posts, and during operation, they only need to pay attention to the safety of general chemical reagents and reagents. When it comes to environmental protection, this product complies with ROHS certification, which is also an important guarantee for its long-term application in German companies.
5. Wide range of applications
Whether a product can adopt this process mainly depends on the material and processing requirements of the PCB circuit board product, and is not affected by its processing method, geometric shape, etc. The PCB materials it targets are mainly iron, copper, aluminum and its alloy materials. So far, it has successfully applied more than 200 circuit board materials, and its application fields are more extensive, especially in various machining and mechanical, electronic In the field of manufacturing, the application is even more special.
6. It can improve the electroplating effect and phosphating amount of the product and prevent hydrogen embrittlement
Since this product can generally improve the surface finish of the product, it is beneficial to improve the electroplating adhesion of the product, thereby improving the electroplating effect. In addition, the use of this process can prevent hydrogen embrittlement, because this process will not form a closed space, which is beneficial to prevent the acidic substances during electroplating from staying inside the workpiece, thereby preventing hydrogen from entering the internal material of the workpiece. lead to hydrogen embrittlement.
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