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What is soldering?
What is soldering?
Soldering is a joining process used to join different types of metals together by melting solder. Solder is a metal alloy usually made of tin and lead which is melted using a hot iron. The iron is heated to temperatures above 600 degrees fahrenheit which then cools to create a strong electrical bond.
Soldering is a joining process used to join different types of metals together by melting solder. Solder is a metal alloy usually made of tin and lead which is melted using a hot iron. The iron is heated to temperatures above 600 degrees fahrenheit which then cools to create a strong electrical bond.
We will be using flux core solder in the soldering labs.
We will be using flux core solder in the soldering labs.
Flux is made up of a base material and an activator which is the chemical that promotes better wetting of the solder by removing oxides from the metal.
Flux is made up of a base material and an activator which is the chemical that promotes better wetting of the solder by removing oxides from the metal.
Flux generates the visible fumes seen during soldering. Exposure to rosin can cause eye, throat and lung irritation, nose bleeds and headaches. Repeated exposure can cause respiratory and skin sensitisation, causing and aggravating asthma. Rosin is a serious occupational health hazard.
Be careful!!!
Be careful!!!
Wear safety glasses at all times during soldering labs
Expect flying hot solder. Watch the location of the iron on the wire.
Expect dripping hot solder. Make sure your hands are not underneath hot solder.
Keep your distance from the hot end of the iron. Always place the iron in the rack when not in use.
Never leave the iron plugged in when not is use.
preLab procedures -
preLab procedures -
1. acquire 3 pieces of wire that will need to be cut to a 5 inch length.
2. strip half an inch of insulation off of each end.
3. use both the traditional and the Vise Grip style wire stripper.
4. these will be soldered together into connected loops (like a key chain). Use masking tape and a marker to write your name on the first loop. These will be left in your station cabinet's top drawer.
What is tinning?
What is tinning?
What is Tip Tinner?
What is Tip Tinner?
Soldering Lab 1 - Basic Soldering
Soldering Lab 1 - Basic Soldering
Solder stranded wires together
Solder stranded wires together
Try just soldering
two straightened wires together.
twisting them together into one.
meshing them together into one.
When done, compare the results.
IMPORTANT STEPS for just the independent tinned wires.
IMPORTANT STEPS for just the independent tinned wires.
Place an end of the wire in the 3rd Hand.
Tin the tip of the soldering iron.
Place the hot iron underneath the wire with gentle pressure upwards.
Add solder to the wire until it soaks in the solder. Complete both ends but do not connect them yet.
Finally, place the exposed wire ends facing each other on 3rd Hand and make sure the wires are properly placed for soldering together.
Touch the tinned wires together until they are visually soldered together. The soldering iron should feel like a paint brush.
IMPORTANT STEPS for just the twisted and meshed wires.
IMPORTANT STEPS for just the twisted and meshed wires.
Wrap or mesh the bare wires together.
Tin your iron.
Place the iron underneath the joined wires with a slight pressure upwards.
While adding heat, attempt to add solder to the wire.
Stop when the wire is soaking in the solder.
Soldering Lab 2 - Heat Shrink
Soldering Lab 2 - Heat Shrink
Heat shrink tubing, also known as heat shrink, is a shrinkable tube that shrinks radially when exposed to heat. In this case, you will use a lighter or a heat gun.
Heat shrink tubing, also known as heat shrink, is a shrinkable tube that shrinks radially when exposed to heat. In this case, you will use a lighter or a heat gun.
CAUTION!!! - Although heat guns can produce extreme heat and are often used in lieu of a gas blow torch, the lack of a visible flame can create a false sense of security. Make sure the item being heated is not held by your hands.
CAUTION!!! - Although heat guns can produce extreme heat and are often used in lieu of a gas blow torch, the lack of a visible flame can create a false sense of security. Make sure the item being heated is not held by your hands.
Try soldering two wires together and cover it with heat shrink.
Try soldering two wires together and cover it with heat shrink.
- Locate the appropriate size heat shrink (diameter - slightly larger so it slides on and length - double of exposed wire)
- Don't forget to apply the heat shrink to the wire prior to soldering.
- Make sure the soldered area is smaller than the opening of the heat shrink.
- Complete this task until finished.
- Add to your link of wires.
- Then try the life hack below.
Can you connect wires together without solder? Check out this life hack!
Can you connect wires together without solder? Check out this life hack!
Soldering Lab 3 - Heat Shrink solder tube
Soldering Lab 3 - Heat Shrink solder tube
Soldering Lab 4 - Circuit Board Practice
Soldering Lab 4 - Circuit Board Practice
Using the perfboard, practice filing the holes over with solder. You will need a tinned soldering iron and a steady hand.
Using the perfboard, practice filing the holes over with solder. You will need a tinned soldering iron and a steady hand.
Fill in at least 10 or when you feel comfortable with the task.
Fill in at least 10 or when you feel comfortable with the task.
Soldering Review
Soldering Review
Soldering Lab 5 - Build a circuitboard (Product Grade)
Soldering Lab 5 - Build a circuitboard (Product Grade)
A circuit kit will be given to you to complete. Read the directions carefully. You only get one of the circuits.
A circuit kit will be given to you to complete. Read the directions carefully. You only get one of the circuits.
Solar Cockroach Activity
Extra Resources
Extra Resources
A Soldering Activity (Year Two Students)
A Soldering Activity (Year Two Students)
Objective - Using SolidWorks, you will design a fully-defined encasement for the electrical components (LED, coin battery, switch)
Size/Build Criteria and Constraints
Use Unit System: MMGS
Object(s) created cannot be over 70 grams total
Walls of the encasement are recommended to be no less than 3mm
All electrical components for the device will be created first (except the wiring) then a full assembly.
Measurement using Millimeters
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