Ushirikiano
SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI

Refractory Cement: Clay, Iron Filings and Manganese, Fired Hard (Spon's Workshop Receipts)
A fireproof and waterproof cement from Spon's Workshop Receipts: dried clay, clean iron filings, peroxide of manganese, sea salt and borax, ground fine, wetted to a thick paste, applied at once and then heated slowly almost to white heat.
Fired, it is very hard and stands both red heat and boiling water.
Source: Spon, Workshop Receipts, first series, p. 24. Picture: the recipe.
Mwanzo
Unknown
Maagizo
1
1
Dry and powder the clay
Dry and powder the clay
Dry 4 or 5 parts of clay thoroughly and pulverize it.
Vifaa kwa hatua hii:
Udongo ghafi kutoka shimoni1 4 or 5 partsZana zinazohitajika:
Kinu na mchi2
2
Mix the powders
Mix the powders
Add 2 parts of fine iron filings free from oxide, 1 part of peroxide of manganese, 1/2 part of sea salt and 1/2 part of borax. Mingle them thoroughly and make the mixture as fine as possible.
Vifaa kwa hatua hii:
Vinyoo vya chuma1 2 parts, fine, free from oxide
Dioksidi ya manganizi (pairolusiti)1 1 part
Chumvi ya Bahari Mbichi1 1/2 part
Poda ya boraksi1 1/2 partZana zinazohitajika:
Kinu na mchi3
3
Make the paste, apply and fire
Make the paste, apply and fire
Work the powder into a thick paste with as much water as it needs, mixing thoroughly. Use it at once. After applying it, heat it gradually, almost to a white heat.
Vifaa kwa hatua hii:
Maji1 kipandeZana zinazohitajika:
Kinu na mchiVifaa
6- 1 4 or 5 partsKishikilia Nafasi
- 1 2 parts, fine, free from oxideKishikilia Nafasi
- Kishikilia Nafasi
- 1 1/2 partKishikilia Nafasi
- 1 1/2 partKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Vifaa vya Michoro Iliyounganishwa
Mchoro huu unatengeneza
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.

