Collection: Part Two

Workshops

Soldering Workshop

annealing 

heating the metal to a certain point

crystal parts become dislocated and hardens metal

work hardening

hearth

blow torch

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

needle flame.

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.

Details

Polishing

must pickle before polishing

an extention of sanding

coarse paper, finer finer finer then polish

softer duster mop is for the red (mirror polish) 

wear goggles

apply the left side first first after turning on

move on to mirror finish

for tiny pieces use a manual mop

Soldering

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

steel tweezers

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

vorax it

heat the flame round the brass, not where the solder is.

push the solder down regularly with probe as it will move about

quench

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.