STORY 3: "Essential points"
Now, let's start soldering. First, I'll connect the plug into an outlet.
No Hikaru. Make sure everything is prepared before connecting the plug into the outlet.
What should I prepare?
First, ensure proper ventilation.
Why? Does this room smell?
No, it doesn't. This resin-containing solder contains flux, or an agent that makes the target metal surface easy to solder. The principal ingredient of the flux is pine resin (rosin), so it is called "resin flux cored solder".
- R type
- Does not contain any activator. The R type flux is used for soldering that requires high reliability, because it contains no chemical substance that causes corrosion.
- RMA type
- To increase solderability of the flux, a small quantity of activator is added. Among the three types described here, the RMA type flux is ranked at an intermediate position, in terms of reliability and solderability.
- RA type
- The RA type flux contains a larger quantity of activator than the RMA type. The RA type is used for soldering that requires excellent solderability.
* Activator: Chemical substance that contains organic acid and amine. It is added to flux to improve solderability.