Soldering

Overview

SMD components during a reflow soldering process.
SMD components during a reflow soldering process.

Manually Applying Solder Paste

Plastic syringe tips are usually better than metal ones, as they offer less friction to the paste, making it easier to control the amount of paste which comes out.

Solder Paste Dispensing Machines

If you are applying solder paste by hand (as opposed to using a template), you can purchase machines which help automatically dispense a measured amount of solder paste from the syringe. Most are operated with air pressure and require an external air compressor (recommended to be at least 1.5HP). You can also get based around linear motors and peristaltic pumps. Common models from AliExpress include:

  • YDL-983A
  • AD-982
Model Number Features Vendor Vendor Price
xxx-982 Analogue dials AliExpress US$70 (inc. shipping)
xxx-983A Digital dials AliExpress US$120 (inc. shipping)

Pre/Post Soldering Heaters

Many components require controlled pre-heating and post-cooling to solder effectively.  

Posted: August 27th, 2013 at 5:21 pm
Last Updated on: May 10th, 2016 at 12:51 pm