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Soldering Safety – Soldering Irons are very HOT!
Name:
1. When I am not using the soldering iron, I should return it to the holder because__________________________________________________________
2 I will put a heat mat under the area I am working on because ____________________________________________________________________
3. Good ventilation is important when soldering because _______________________________________________________
4. Only one person should solder at a time and they should concentrate well so that ____________________________________________________________________________________________________
5. I will not touch the soldering iron to see if it is on. Instead, I will ________________________________________________________________________
6. I wear an apron when soldering so that ______________________________________________________________________________________
7. I will clean the iron between each join to make sure ________________________________________________________
8. I can use a crocodile clip between the board and my component to ________________________________________________________________
9. I can snip the excess wires off with wire clips once I am finished because_____________________________________________________________
You have
5 minutes
to discuss the answers with your table.
Draw a soldering iron below:
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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 don’t 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
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Homework:
Complete the soldering safety sheet.
For next lesson.
Marks will be given for the quality of your answers
and for neatness!
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SOLDERINGa step by step guide.
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ADD YOUR COMPONENT (example shown is a resistor)by pushing the wires through the holes you have drilled in your PCB.
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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 you’re not going to solder now.
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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.
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”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.
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HEAT YOUR COPPER TRACK by holding the iron’s point on it for 3 seconds.
If you heat it for too long, the track will burn away.If you don’t heat it for long enough, the solder will not stick.
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TOUCH THE SOLDER WIRE ONTO THE TRACK and heat it quickly from above with the iron.
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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.
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GOOD AND BAD ATTEMPTS
GOOD:The join is complete
and will hold in place.
BAD:Not enough solder applied. No join.
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GOOD AND BAD ATTEMPTS
BAD:Copper track not
heated long enough. No join.
BAD:Copper track burned
so no current can pass through. No
join.
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GETTING YOUR RESISTORS IN THE RIGHT ORDER
Bear in mind – this PCB is shown from the BACK.
Use these colour codes to fill the values on your sheet.
violet
grey
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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 don’t 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!).
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ELECTRONIC ORGAN RESISTOR CODES
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
VALUENo.red
red red
red
redred
red
brown
brownbrown
brown
brown
brown
brown
blue
orange
orange
orange
orange
orange
orange
orange
orange
orange
orange
violet
black
black
grey
grey
greygreengreen
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ELECTRONIC ORGAN RESISTOR CODES
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
VALUENo.
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ELECTRONIC ORGAN RESISTOR CODES
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
27K
VALUENo.
22K
10K18K15K
15K6.8K
12K12K
10K
82K