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Plumbago Crucibles: Fire Clay, Coke and Graphite, Ure 1839
Crucibles must stand sudden heating and cooling without cracking. Andrew Ure (1839) gives the best as pure fire clay with ground old crucibles, black lead (graphite) and some coke: a Berlin mix of 8 parts clay and cement, 5 of coke and 4 of graphite stood 23 meltings of 76 lb of iron each. Mix it like a pottery body, press it into crucibles, dry them slowly and fire them.
The picture: used graphite crucibles.
Juu
A week with drying
Maagizo
1
1
Grind and sift
Grind and sift
Pound the coke and the plumbago fine and sift them; sift the grog.
Vifaa kwa hatua hii:
Kokoo ya kutengeneza chuma1 kg
Grafiti asilia1 kg
Grogi (vyombo vya udongo vilivyochomwa na kupondwa)0.5 kgZana zinazohitajika:
Kinu na mchi
Ungo wa Matundu Membamba
Barakoa ya vumbi2
2
Mix the body
Mix the body
Measure by bulk 8 parts fire clay with grog, 5 parts coke and 4 parts graphite (Ure's Berlin mix). Mix dry, then add water and knead to a stiff dough as for pottery.
Vifaa kwa hatua hii:
Udongo Unaostahimili Moto2 kg
Maji1 litaZana zinazohitajika:
Mizani ya mizani-mbili
Ndoo3
3
Form the crucibles
Form the crucibles
Press the dough hard into a mould round a wooden former, or over a tapered former, keeping the walls even and not too thick; ease each crucible off and trim the rim.
Zana zinazohitajika:
Nyundo ya mbao
Kisu cha kazi4
4
Dry slowly
Dry slowly
Dry them slowly in a warm room for several days, turning them now and then, until no moisture is left.
Zana zinazohitajika:
Kichanja cha Kukaushia5
5
Fire
Fire
Bake them in the kiln, raising the heat slowly. Store them dry and warm each before first use.
Zana zinazohitajika:
Tanuru la joto kali6
6
Ure's Berlin mix
Ure's Berlin mix
Inapakia daftari la Jupyter…
Vifaa
5- Kishikilia Nafasi
- 1 kgKishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- 1 litaKishikilia Nafasi
Zana Zinazohitajika
9- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.