PCB plating includes the following:
A. Prepare soldering tools and materials, such as soldering iron, solder, tweezers and so on.
B. Insert the components to be soldered into the corresponding position on the PCB board, make sure the components are aligned with the pads.
C. Heat the soldering iron, place the solder on the pads to be soldered, and use the soldering iron to melt the solder and wet the pads.
D. When the solder is melted, align the pins of the component with the pads of the PCB board and push the component into the soldered part.
E. Keep the soldering iron and component steady until the solder is completely solidified.
F. Check the quality of the soldering with tweezers or other tools to make sure it is solid.
G. Repeat the above steps until all components to be soldered have been completed.
Conduct a final test to ensure the quality of the soldering and the functionality of the circuit.
It should be noted that different soldering tools and materials may affect the quality and effectiveness of soldering, so careful consideration is needed when selecting soldering tools and materials. At the same time, in order to ensure the quality and stability of the soldering, you also need to pay attention to the details of the soldering temperature, time and the cleaning of the soldering iron tip.
Characteristics of The PCB Welding Process
The PCB welding process includes the following features:
High Flexibility: Manual soldering is suitable for small batch production and sample production, and can be quickly adjusted and modified as needed.
Relatively Low Technical Requirements: Compared with other advanced soldering processes, manual soldering on the operator’s technical requirements are relatively low, non-professionals can also carry out simple soldering work.
Low Cost: Manual welding is relatively inexpensive and does not require much welding equipment or materials.
High Efficiency: The efficiency of manual welding is relatively high, and can quickly complete small batch welding tasks.
Unstable Welding Quality: Due to the different skills and experience in manual welding, the welding quality may be unstable.
Limited Scope of Application: Manual welding is suitable for small batch production and repair, and may not be suitable for large-scale, high-precision and high-reliability production.
Environmental Protection: Manual soldering using flux and solder may have a certain impact on the environment, need to pay attention to environmental issues.
PCB welding has a high degree of flexibility, relatively low technical requirements, low cost, high efficiency, welding quality is not stable, limited scope of application and environmental protection. When selecting the welding process, it is necessary to consider the actual situation and specific needs.
PCB Welding Process Considerations
In the PCB welding process, the following points need to be noted:
Welding Temperature and Time: The temperature and time of welding have a great impact on the welding quality and reliability. The temperature is too high may lead to component damage, while the temperature is too low may lead to welding is not solid or false welding. Therefore, the appropriate soldering temperature and time should be selected according to the specific situation.
Soldering Order: When soldering multiple components, they should be soldered in a certain order to avoid leakage or repeated soldering. Generally speaking, the low profile components should be welded first, and then welded the higher components to ensure the stability and reliability of welding.
Preventing False Soldering: False soldering is caused by the solder joints not conforming to the expectation, which is manifested as blackened and rough solder joints. In order to prevent false soldering, you should choose the appropriate soldering temperature and time, and clean the PCB before soldering to ensure that the solder joints are firm and reliable.
Component Polarity: When soldering some components with polarity, attention should be paid to the direction of the polarity of the components to ensure proper connection.
Keep Clean: In the welding process, should keep the welding parts and soldering iron tip clean, to avoid impurities or oxides affect the welding quality.
Reasonable Choice of Soldering Materials: Suitable soldering materials should be chosen according to the specific situation, such as solder, flux, etc.. Meanwhile, attention should be paid to the storage and use conditions of the material to avoid oxidation or pollution.
Standardized Operation: In the welding process, the operation should be carried out in accordance with the specifications to avoid misoperation or bad habits and so on. At the same time should pay attention to observe the welding effect, timely detection of problems and processing.
Tool Use: When using tools such as soldering iron, should pay attention to the safe operation procedures to avoid scalding and other accidents. At the same time should pay attention to the maintenance and maintenance of tools to ensure the normal use and life of tools.
Quality Inspection: After the completion of welding, the circuit board should be quality inspection, such as visual inspection, power test, etc., to ensure that the circuit board welding quality and reliability.
PCB welding process requires attention to many issues, the need for board manufacturers with advanced equipment and technical strength and strict quality management system to ensure that the production of circuit boards to meet customer requirements. At the same time, in the design phase need to consider the performance and reliability requirements of the circuit, rational arrangement of component layout and wiring and other elements. In addition, attention also needs to be paid to environmental protection and safety measures and other aspects of the problem.
