PCB Pressing Process and Precautions
The process of PCB pressing mainly includes the following steps:
Prepare the materials required for pressing, such as PP sheet, film, inner layer board, etc., to ensure that their quality is qualified and meets the process requirements.
Place the inner layer board on the working table of the laminating machine to ensure that it is flat and not tilted.
According to the process requirements, the PP sheet and film are placed on the inner layer plate in order to ensure that they are tightly fitted and free of air bubbles.
Set the laminating temperature and pressure as needed, and adjust the temperature and pressure according to the material characteristics.
Turn off the laminating machine and start the laminating operation. During the pressing process, the proper temperature and pressure should be maintained to ensure that the layers of material are tightly laminated.
After completing the pressing, remove the sheet and check the fit of each layer to ensure there are no bubbles, wrinkles or other problems.
If problems are found, rework or re-pressing is required. If the layers of material fit well, subsequent processing and fabrication can be carried out.
During the pressing process, proper temperature and pressure should be maintained to avoid deformation or breakage of the material caused by too high temperature or too much pressure.
When placing the materials, make sure that each layer is flat and correctly placed to avoid tilting or misalignment leading to failure of pressing.
When checking the lamination of each layer of material, it should be done carefully and conscientiously to avoid missing or misjudging problems. If any problems are found, timely measures should be taken to rework or re-press the lamination.
For different types of materials and process requirements, different pressing temperatures, pressures and times are required, and the material properties and process requirements should be fully understood.
During the pressing process, care should be taken to prevent contact between the material and hands or other objects to avoid contamination or damage.
Quality inspection is required after pressing, including the fit of each layer of material, whether there are bubbles or wrinkles, etc., to ensure that the quality of the PCB produced is reliable.
During the pressing process, attention should be paid to safety issues, such as avoiding high-temperature burns, avoiding the use of sharp tools.
For multilayer boards or special boards, special pressing process and technology are needed to ensure that the PCB meets the requirements.
In the pressing process, attention should be paid to the treatment of waste gas and waste liquid, and take appropriate environmental protection measures to ensure environmental protection and safety in the production process.
After the press-fit need to carry out post-processing, such as cleaning, drilling, welding, etc., should follow the corresponding process requirements and technical specifications to ensure that the production of PCB quality and reliability.
In general, press-fit is an important part of the PCB production process, you need to follow the appropriate process requirements and technical specifications to ensure that the production of reliable PCB quality. At the same time, also need to pay attention to safety issues and environmental issues, take appropriate measures to ensure that the production process of safety and environmental protection.
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