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UREMBO NA USTAWI
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Hatari
Cresol-Formaldehyde Resin for Wire Enamel, Jackson and Hall 1938
Cresol and formalin, with a little triethanolamine as catalyst, are boiled under reflux for about two hours until the resin starts to cloud out, dried under vacuum below 80 °C and thinned with cresol to a 50 % solution. GE's wire-enamel patent (Jackson and Hall, 1938) gives the recipe; heat later cures it hard.
The picture: our diagram of the cook.
Juu
Half a day
Maudhui hatari
Blueprint hii ina taratibu za hatari. Ingia na uwashe maudhui ya hatari katika mipangilio ya akaunti yako ili kuona maagizo ya hatua kwa hatua.
IngiaMchoro 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.