UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO

Tin Bronze Ingots, Wire and Rod
Bronze is copper alloyed with tin. Bronze Age smiths used about 10 % tin for castings and a softer 'mild' bronze of about 6 % tin that they hammered into sheet; modern bronze is about 88 % copper and 12 % tin. It melts at about 950 °C, depending on the mix. Melt the copper, stir in the tin, pour ingots; for wire and rod, use the 6 % alloy and draw it like copper, annealing often.
Ophakathi
A day
Imiyalelo
1
1
Weigh the charge
Weigh the charge
Ilayisha incwadi ye-Jupyter…
2
2
Melt the copper
Melt the copper
Melt the weighed copper in a crucible in the charcoal forge with the air on, under a layer of charcoal to keep the air off the metal.
Izinto zokwakha zalesi sinyathelo:
Isigaxa Sethusi940 g
Amalahle10 kgAmathuluzi adingekayo:
Iziko lomkhandi wensimbi
Imbiza Yobumba Emelana Nomlilo
Isikali
Ipheshana Lesikhumba
Amagilavu okushisela
Izibuko zokuphepha3
3
Add the tin
Add the tin
Push the weighed tin under the melt with a dry iron rod and stir it in.
Izinto zokwakha zalesi sinyathelo:
Ingqimba ye-tin60 gAmathuluzi adingekayo:
Udlawu Lwesitsha Sokuncibilikisa4
4
Pour ingots
Pour ingots
Lift the crucible with the tongs and pour into a warmed, dry ingot mould. Let it cool.
Amathuluzi adingekayo:
Udlawu Lwesitsha Sokuncibilikisa
Isikhunta sokuthela insimbi5
5
Hammer and draw
Hammer and draw
Anneal a 6 % ingot at a dull red and quench, hammer it round, taper the end, and draw it through the drawplate with wax, annealing every two holes. Stop at rod or go on to wire.
Izinto zokwakha zalesi sinyathelo:
Isibabule Sezinyosi10 g
Amanzi5 amalithaAmathuluzi adingekayo:
Insimbi Yokukhandela
Isando esinekhanda eliyindilinga
Isibani Se-propane
Isitini somlilo
Udlawu lomkhandi wensimbi
Ibhakede lokupholisa
Iqoqo Lamafayela
Ipuleti lokudonsa ucingo lensimbi
Udlawu lokudonsa
Isibambo Sebhentshi6
6
Measure
Measure
Measure the rod or wire and label it with its tin percentage.
Amathuluzi adingekayo:
I-Caliper Yedijithali Yamayintshi Ayi-67
7
Troubleshooting
Troubleshooting
Bronze troubleshooting.
Flow
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Izinto
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- 60 gIsibambeli
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