PCB screen printing is a technology for screen printing text or patterns on PCB boards. It is a very important step in the PCB manufacturing process. Next, this article will introduce to you the working principles, techniques and application cases of PCB screen printing by a 20-year PCB intelligent screen printing equipment and energy-saving oven manufacturer to help readers better understand and use this technology.
- Working principle of pcb silk screen printing
1. The process of PCB screen printing includes circuit diagram design, sheet cutting, screen printing and other steps.
2. Circuit diagram design: Before PCB silk printing, the silk screen patterns and text need to be designed based on the circuit design and wiring diagram. These patterns and text need to be consistent with the circuit diagram and meet electrical specifications and workmanship requirements.
3. Sheet cutting: Cut large sheets into small pieces for screen printing.
4. Screen printing: Use the screen as the printing plate to evenly print the ink on the plate to form the required patterns and text.
2. PCB silk screen printing skills
1. When performing PCB screen printing, you need to pay attention to the following tips:
2. Choose the appropriate screen printing material: According to the requirements of the circuit diagram and the performance of the ink, select the appropriate screen printing material, such as single-sided paper, polyester fiber, metal wire, etc.
3. Control the screen printing temperature: During the screen printing process, temperature has a great impact on the printing quality. It is necessary to adjust the appropriate temperature according to the characteristics of the ink and the characteristics of the screen printing material to ensure printing quality.
4. Adjust screen printing pressure: Pressure is one of the key factors to ensure uniform printing of ink. The appropriate pressure needs to be adjusted according to the characteristics of the screen printing material and ink to ensure printing quality.
5. Ensure printing accuracy: Printing accuracy is one of the key factors to ensure printing quality and circuit diagram consistency. The working status of printing equipment needs to be checked regularly to ensure printing accuracy.
3. Application cases of pcb silk screen printing
1. PCB silk screen printing is widely used in the manufacturing of electronic products. The following are several common application cases:
2. Circuit board of electronic equipment: Silk printing on the circuit board of electronic equipment can mark the direction of the circuit diagram and the position of each component to facilitate subsequent welding and assembly.
3. Battery electrode sheets: Silk screen printing can be performed on the battery electrode sheets to mark the working voltage, current and other information of the electrode sheets for user convenience and safe use.
4. Conclusion
PCB silk screen printing is an indispensable step in modern electronic product manufacturing, which can improve product quality and reliability. By mastering the working principles and techniques of PCB silk screen printing, you can better apply this technology. With the continuous development of technology, we believe that PCB screen printing technology will become more mature and intelligent in the future, bringing more convenience and benefits to the manufacturing of electronic products.
As a leader in automation equipment for PCB circuit board resin/ink plugging, solder mask/text ink screen printing, solder mask pre-baking/text post-baking and drying series processes, Xin Jinhui has experienced 20 years of technology accumulation and takes quality as the cornerstone. With technology as the weapon and service as the backing, Pijianjianrui has developed rapidly and has become a benchmark brand for domestic first-line PCB special equipment. It has developed PCB vacuum/pressure plugging machines, PCB intelligent automatic solder mask/text screen printing machines, PCB resistors Welding pre-baking/text post-baking, pcb fully automatic plugging + solder mask/text screen printing + tunnel oven intelligent production line and pcb flipper and other supporting intelligent auxiliary equipment, network room equipment, etc., according to customer process requirements, professional and fast, Tailor-made one-stop technical solutions and intelligent automation equipment production lines that meet the production needs of PCB circuit board customers.
Post time: Feb-29-2024