Soldering Safety

1
Soldering Safety Soldering Irons are very HOT!
1. When I am not using the soldering iron, I
should return it to the holder because___________
_______________________________________________
5. I will not touch the soldering iron to see if
it is on. Instead, I will ______________________
__________________________________________________
9. I can snip the excess wires off with wire
clips once I am finished because_________________
____________________________________________
Draw a soldering iron below
6. I wear an apron when soldering so that
_________________________________________________
_____________________________________
2 I will put a heat mat under the area I am
working on because ______________________________
______________________________________
7. I will clean the iron between each join to
make sure _______________________________________
_________________
3. Good ventilation is important when soldering
because _________________________________________
______________
You have 5 minutes to discuss the answers with
your table.
4. Only one person should solder at a time and
they should concentrate well so that
__________________________________________________
__________________________________________________
8. I can use a crocodile clip between the board
and my component to _____________________________
___________________________________
Name
2
Lesson Objectives To learn how to solder safely
and effectively. Success Criteria Must Have
filled in your table of resistor values and added
the first six resistors to your board, bending
the wires over so that they dont fall
off. Should Have soldered the six resistors in
place safely and accurately. Could Have
completed the soldering task and the soldering
safety homework sheet (NEATLY!). SOLDERING IRONS
ARE DANGEROUS - ANYONE CAUGHT ACTING STUPIDLY
WITH EQUIPMENT WILL AUTOMATICALLY BE GIVEN AN
AFTER SCHOOL DETENTION
3
Homework Complete the soldering safety
sheet. For next lesson (Wednesday 7th
December). Marks will be given for the quality
of your answers and for neatness!
4
SOLDERING
a step by step guide.
5
ADD YOUR COMPONENT (example shown is a
resistor)by pushing the wires through the holes
you have drilled in your PCB.
6
ADD YOUR COMPONENT (example shown is a
resistor)by pushing the wires through the holes
you have drilled in your PCB.
Bend over all of the wires youre not going to
solder now.
7
CLEAN THE POINT OF THE IRON - take away any dirt
on a damp (not soaking wet) sponge when the iron
is heated up.
This will help your solder to flow properly.
8
TIN THE IRON. This just means you should melt
a tiny bit of solder onto the point.
Try to avoid breathing in the fumes - they can be
harmful.
9
HEAT YOUR COPPER TRACK by holding the irons
point on it for 3 seconds.
If you heat it for too long, the track will burn
away.If you dont heat it for long enough, the
solder will not stick.
10
TOUCH THE SOLDER WIRE ONTO THE TRACK and heat
it quickly from above with the iron.
11
LIQUIFY JUST ENOUGH SOLDER TO MAKE THE JOIN and
then pull the iron away.
Your join should look something like this
one.You should only need a small amount of
solder for each join.
12
GOOD AND BAD ATTEMPTS
GOODThe join is complete and will hold in place.
BADNot enough solder applied. No join.
13
GOOD AND BAD ATTEMPTS
BADCopper track not heated long enough. No
join.
BADCopper track burned so no current can pass
through. No join.
14
Complete your soldering safety question sheet
15
GETTING YOUR RESISTORS IN THE RIGHT ORDER
violet
grey
Bear in mind this PCB is shown from the
BACK. Use these colour codes to fill the values
on your sheet.
16
Lesson Objectives To learn how to solder safely
and effectively. Success Criteria Must Have
filled in your table of resistor values and added
the first six resistors to your board, bending
the wires over so that they dont fall
off. Should Have soldered the six resistors in
place safely and accurately. Could Have
completed the soldering task and the soldering
safety homework sheet (NEATLY!).
17
ELECTRONIC ORGAN RESISTOR CODES
VALUE
No.
red
orange
violet
R1
orange
red
red
R2
brown
orange
black
R3
orange
grey
R4
brown
brown
orange
green
R5
green
orange
R6
brown
red
blue
grey
R7
orange
red
brown
R8
red
orange
R9
brown
orange
black
R10
brown
red
orange
grey
R11
18
ELECTRONIC ORGAN RESISTOR CODES
VALUE
No.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
19
ELECTRONIC ORGAN RESISTOR CODES
VALUE
No.
R1
27K
R2
22K
R3
10K
18K
R4
15K
R5
15K
R6
6.8K
R7
12K
R8
12K
R9
10K
R10
R11
82K