PCB Board Soldering: Techniques and Safety Measures

• Visual soldering machines are widely used for soldering PCB boards.
• Clean the workpiece surface to ensure a strong bond with the solder.
• Solderability of the workpiece is crucial for quality solder joints.
• Set the soldering time appropriately for optimal results.

Common Electronic Components on PCBs

Advancements in technology have led to wave soldering and surface-mount processes for PCB components, enhancing efficiency and reliability. However, some components require manual soldering after automatic processes. Manufacturers are constantly improving soldering methods to ensure high quality and efficiency.

Challenges in PCB Soldering

Issues often arise with inadequately soldered PCBs using automatic soldering machines. Through years of analysis, we have identified common problems and solutions to enhance soldering quality and efficiency.

Solving Common Issues in PCB Manufacturing

• Soldering Pad Coating:

  Green oil coating on PCB soldering pads can impact solder joint quality, especially with automatic soldering machines.

  To improve this, PCB manufacturers need to enhance the solder pad contact time.

• Oxidation of PCB Pads:

  Oxidation on gold-plated surfaces is increasing due to cost-cutting measures in PCB production.

  Two scenarios of oxidation exist: pre-gold plating and post-gold plating, each requiring different remedial actions.

• Cutting Leads of Electronic Components:

  Proper lead length is crucial to avoid obstacles for soldering and prevent defects in automatic soldering machines.

  Adjusting lead length can help maintain soldering quality and efficiency.

• Installation of PCB Heat Sinks:

  Heat sinks in communication devices need secure installation methods to prevent failures.

  Mechanical fixation and adhesive fixation are two common methods, each with its challenges and considerations.

If you require PCB manufacturing assistance, feel free to contact me.