UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Brass Sheet, Strip and Rod from an Ingot
Brass from the alloying blueprint is cast into bars, then worked cold like copper: rolled or hammered for sheet and strip, drawn for rod. It work-hardens faster than copper, so it is annealed often, to a dull red, and can be quenched. Molten brass gives off white zinc-oxide smoke: melt it outdoors with the wind behind you.
Hagati
A day
Amabwiriza
1
1
The brass
The brass
Making the brass ingot.
2
2
Cast bars
Cast bars
Outdoors, melt brass pieces in a crucible in the charcoal forge and pour them into a warmed, dry ingot mould: flat bars for sheet and strip, square bars for rod.
Ibikoresho by'iyi ntambwe:
Ikirundo cy'umuringa w'umuhondo1 kg
Amakara5 kgIbikoresho bikenewe:
Uruganda rw'umucuzi
Ikirahure cy'Ibumba Rirwanya Umuriro
Amakoro y'Icyombo Gishongesha
Imbumbe yo gusukamo icyuma gishongeye
Ikanzu y'uruhu
Uturindantoki two gukomeza ibyuma
Amadarubindi y'umutekano3
3
Anneal
Anneal
Heat each bar on fire bricks to a dull red with the torch and quench it in water.
Ibikoresho by'iyi ntambwe:
Amazi10 litiroIbikoresho bikenewe:
Itara rya Propane
Itafari ryihanganira umuriro
Amafashi y'umucuzi
Indobo yo gukonjesha4
4
Roll or hammer sheet and strip
Roll or hammer sheet and strip
Pass the flat bar through the rolling mill, closing it a little each pass, or hammer it on the anvil. Anneal whenever it stiffens. Cut strip from the sheet with snips.
Ibikoresho bikenewe:
Imashini isingiya icyuma
Ingoyi
Inyundo ifite umutwe utambitse
Ibyuma bikata ibyuma bisanzwe
Ikigereranyo cya Digitale cy'Amasentimetero 65
5
Draw rod
Draw rod
Hammer the square bar round, taper the end, and draw it through the drawplate with draw tongs and wax, annealing every few holes.
Ibikoresho bikenewe:
Ingoyi
Inyundo ifite umutwe wa buruta
Urubaho rwo gukurura insinga rw'icyuma
Koleyo yo gukurura insinga
Ifatiro ry'Ameza6
6
Clean
Clean
Soak in vinegar with salt to lift the oxide, scrub with the wire brush, rinse and dry.
Ibikoresho by'iyi ntambwe:
Inkarabyo0.5 litiro
Umunyu10 gIbikoresho bikenewe:
Ibakuli
Ibikoresho by'uburoso bw'insinga7
7
Troubleshooting
Troubleshooting
Brass working troubleshooting.
Flow
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Ibikoresho
5- Umwanya
- 5 kgUmwanya
- 10 litiroUmwanya
- 0.5 litiroUmwanya
- 10 gUmwanya
Ibikoresho bikenewe
22- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.