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Grinding Wheel: Vitrified, Clay-Bonded (Machinery's Handbook, 1924)
The common machine-shop wheel: abrasive grains held in a bond of clay and fluxes, moulded and fired until the clay partly melts and vitrifies. Porous and free-cutting, unaffected by water, acids, oils, heat or cold.
Source: Machinery's Handbook (1924), pp. 1101-1102. Unknown: proportions and temperatures. Picture: the handbook's text.
Juu
100+ hours firing, a week cooling
Maagizo
1
1
Mix and mould
Mix and mould
Mix suitable clays and fluxes with the abrasive grain and mould the wheels. Not given: proportions.
Vifaa kwa hatua hii:
Changarawe ya kusugua ya oksidi ya alumini1 kipande
Udongo wa ball clay1 kipande
Kipande cha feldspa1 flux
Maji1 kipandeZana zinazohitajika:
Seti ya bakuli za kuchanganyia
Kiolezo
Nyundo ya mbao2
2
Fire and cool
Fire and cool
Burn the wheels continuously for 100 hours or more, longer for bigger wheels, raising the heat gradually until the clay partly melts and vitrifies. Cool slowly for a week, guarding against sudden temperature changes; as it cools the clay binds the grains.
Zana zinazohitajika:
TanuruVifaa
4- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 fluxKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
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.