SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
PTFE Film: Powder Rolled Thin, a Minute at 400 °C, Quenched (Brubaker & Hanford 1946)
Fed between two smooth rolls set 1–2 thousandths of an inch apart, PTFE powder comes out as a fragile film. One minute in a furnace at 400 °C and a dip in cold water turn it into a tough, flexible film. Rolling it again cold makes it stronger and clearer.
Source: M. M. Brubaker and W. E. Hanford (du Pont), US 2,400,099 (1946), Example III. The furnace and quench bucket are ours. Picture drawn by Youblob.
Juu
1 day
Maagizo
1
1
Set the rolls 1–2 mils apart
Set the rolls 1–2 mils apart
Set a pair of smooth calender rolls to a gap of about 1 to 2 mils (0.001–0.002 in).
Zana zinazohitajika:
Roli laini za kalenda
Maikromita2
2
Roll the powder into film
Roll the powder into film
Feed powdered PTFE between the rolls. The film that comes out is fragile: handle it gently.
Vifaa kwa hatua hii:
Unga wa resini ya PTFE1 as requiredZana zinazohitajika:
Roli laini za kalenda3
3
One minute at 400 °C
One minute at 400 °C
Pass the film through a furnace at 400 °C so that each part stays in the heat for about 1 minute.
Zana zinazohitajika:
Tanuri ya muffle
Themokapo yenye kionyeshi
Koleo4
4
Quench in cold water
Quench in cold water
Quench it straight into cold water. The film is now tough, flexible and even.
Zana zinazohitajika:
Ndoo ya kupoza chuma5
5
Cold-roll it (optional)
Cold-roll it (optional)
Rolling the film again cold makes it stronger and clearer. The patent gives no gap for this pass.
Zana zinazohitajika:
Roli laini za kalendaMaikromitaVifaa
1- 1 as requiredKishikilia Nafasi
Zana Zinazohitajika
6- 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.