日本語
I'm collecting the equipment and supplies needed to do surface mount hand soldering and rework at home. Among other things, I want to choose a compatible set of flux-core solder, solder paste, solder wick and flux cleaner with well-defined characteristics.
I'm having difficulty figuring out how to deal with solder paste. All the solder pastes that look promising come packaged in 500gm tubs or industrial-looking cartridges. So my questions are:
1. How do I transfer these materials into syringes (or other dispensers) that are practical to use for hand-applying solder paste in tiny dots and thin threads?
2. What are the best syringes, needles, etc. to use for this purpose?
3. Is there a gun, etc. into which those industrial-looking cartridges fit that is suitable for my purpose?
4. What else do I need to know?
- Comments(1)
A****min
Dec 30.2019, 17:33:11
I wouldnt recommend using a syringe at all, unless you have a dispensing machine. It's fairly difficult to get consistent dots amd you'll just end up with bridges on IC's or tombstones on small chip parts when you go to reflow. You may well end up spending more time fixing it than it would have taken to simply hand solder it point to point.
If your going to the trouble of using solder paste, get a stencil made with your boards. Prototype desktop stencils are cheap and save a great deal of time.
I suggest if you want to try with a syringe anyway, buy a paste that comes in a syringe already, it will likely have a consistency better suited to being pushed through a tiny needle. Solder paste has a limited shelf life so you don't want to have more sitting around than you can use in a few months, a little goes a surprisingly long way.
