 |
| Hikaru |
: |
Now, let's start soldering. First, I'll connect
the plug into an outlet. |
| Mr. Fusamura |
: |
No Hikaru. Make sure everything is prepared
before connecting the plug into the outlet.
|
| Hikaru |
: |
What should I prepare? |
| Mr. Fusamura |
: |
First, ensure proper ventilation.
|
| Hikaru |
: |
Why? Does this room smell? |
| Mr. Fusamura |
: |
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".
|
|
Types of Resin Flux
| 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. |
|
|
|
|
|
|
