source:Industry News release time:2021-09-13 Article author:sznbone Popular:pcb
The latest PCB circuit board chemical deburring method
When it comes to deburring a PCB circuit board, many people immediately think of washing and polishing. Washing and grinding is the most commonly used method of deburring. 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 simple operation is one of its advantages. However, with the continuous improvement of industrial requirements, its dominance of the world has begun to decompose, 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 process is a soaking process, and CULLYGRAT is a solution. The circuit board product utilizes the difference of substrate structure and burr, and through the principle of vertical reaction, selectively achieves the effect of removing the burr of the PCB circuit board. Compared with traditional chemical deburring, the circuit board process has made great progress in all aspects, especially in terms of reliability, repeatability, stability, and environmental protection. It is far superior to traditional processes. The process performance is briefly introduced as follows.
Multilayer PCB circuit board/gold finger circuit board
Multilayer PCB circuit board/gold finger circuit board
1. Improve the surface finish of circuit board products
Using this process to treat burrs can also improve the surface finish of the circuit board of the workpiece, thereby achieving a polishing effect. When the workpiece is processed by various methods, its plane has a different degree of roughness. When processed by this process, this index can be reduced very well. This is because the process can selectively react to the product vertically. , 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 specifically, it depends 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 widely used in mass production. Due to the extremely high reproducibility and reliability of this product, the processed products have extremely high consistency in terms of precision and color size. Especially in terms of size control, the precision can reach micrometers. Require. All of these provide a guarantee for its large-scale application in industry.
Immersion gold PCB multilayer board
Immersion gold PCB multilayer board
3, can enhance the 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, some customers have done a salt spray test, and the result found that there are products processed by this process, which can greatly extend the salt spray test time.
4, safe and reliable, environmentally friendly and economical, simple operation
This process is used for deburring, which has the characteristics of safety, reliability, and environmental protection. There are two main aspects of safety. First, product safety. It mainly means that the processed products have a higher quality assurance, 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, the operators only need to undergo simple training before they can start their posts, and during operation, they only need to pay attention to the safety of general chemical tests and reagents. When it comes to environmental protection, the product meets the ROHS certification, which is also an important guarantee for its long-term application in the German Bosch company.
5. Wide application range
Whether a product can use this process is mainly determined by the material and processing requirements of the PCB circuit board product, and is not affected by its processing method, geometric shape, etc. Its PCB materials are mainly iron, copper, aluminum and their alloy materials. So far, it has successfully applied more than 200 kinds of circuit board materials, and its application fields are more extensive, especially in various machining and mechanical, electronic In the manufacturing field, the application is even more special.
6. It can improve the electroplating effect and phosphating amount of the product, and prevent hydrogen embrittlement
Because the product can generally improve the surface finish of the product, it is beneficial to enhance the electroplating adhesion of the product, thereby improving the electroplating effect. In addition, the use of this process can prevent hydrogen embrittlement. This is because the process does not form a closed space, which helps prevent acidic substances during electroplating from staying inside the workpiece, thereby preventing hydrogen from entering the internal material of the workpiece. Cause hydrogen embrittlement.
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