heating the metal to a certain point
crystal parts become dislocated and hardens metal
firebricks - insulating material. can use charcoal as well
Soldering flame and annealing flame
press green button to switch on
wait until gas goes through hose
wait for the green light
turn nozzle to open up gas
light torch close to the fire (netted thing)
soft flame used for annealing
tip of the turquoise triangle is the hottest point
copper has a high melting point
wait until red hot
quench it - putting it in cold water
metal oxidizes - black crust - oxidised. in order to solder you need to take that off
dont put steel in the solution to get the oxidisation out as it will go pink
alluminium has a very low melting point so it cannot be soldered
steel goes black
brass goes into a dull yellow
if overheat brass, it could melt.
use brass tweezers.
must pickle before polishing
an extention of sanding
coarse paper, finer finer finer then polish
softer duster mop is for the red (mirror polish)
apply the left side first first after turning on
move on to mirror finish
for tiny pieces use a manual mop
put water onto ceramic dish
yellow liquid - flux
mix the paste
compressed vorex powder cone
cleaning metal is taking the top layer off - so that it isnt oxidized
soldering probe - titanium with insulating handle
always clean metal first by sanding
put paste on to protect it
clean every edge you are going to join
cleaning and fitting
reverse round tweezers - need to squeeze to open so that you dont need to hold it
use the frame to prop it up
three different types of silver solder - diff melting points - hard, medium, easy.
hard - highest melting point
If you have a lot of soldering points, you would start with hardest, so that later on you wont melt your work.
Because silver is an alloy, 92.5 percent silver, but the 7.25 other things bring the other stuff down e.g. nikel. etc. Each will give it a different kind of colour
clean the solder as everything else.
always use the smallest amount of solder possible. otherwise it will look messy. when it looks invisible, it is the best.
solder always wants to run towards the heat.
fringe the solder to get tiny bits.
pick up the solder with the vorax brush
make sure you fix the probing hand against something (the table)
start with gentle heat,
important that both sides have the same heat at the same time to prevent the solder running off
look for the even red glow.
could heat away from where the solder is to direct solder to run down to that point.
when you see that it has run down, see it glistening. quench it when finished.
Soldering A Spiral
use thin pliers to shape it,
stamp it so it is flat
clean it with sand paper
heat the flame round the brass, not where the solder is.
push the solder down regularly with probe as it will move about
to solder a tip of a wire on. (usually used for earing backs)
therefore, need to put solder on the ring first.
use ring soldering frame.
put vorax on the brass first
get tiny tiny piece of solder
file the tip, put vorax on
melt the solder.
rest hand holding the tongs against the table so it is very steady.
on the ring holder, it conducted heat so takes too long
so change the tray. it will melt a lot quicker.
ear wire- if it is too floppy, twist it
Making A Ring
shape with pliers
cut extra bit with bandsaw
check it for size and cut appropriately.
file it so that the edges are nice and flat.
half round ring pliers.
if freshly cut, its clean, so no need to sand. but remember to put on the paste.
place solder in the middle
soft flame, bring the flame round in a cup shape round
stamp around ring shaper.
put it in the pickle.
half-round file to file later.