SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
REVERSE ENGINEERING
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Hatari
Lead Pipe Extrusion
Rolling squeezes metal between two rolls and can only make sections open to the outside. Extrusion pushes it through a hole instead — and if you put a mandrel in the middle of that hole, what comes out is a tube, seamless, in one continuous length. Joseph Bramah patented a lead pipe press in 1797 and Thomas Burr built on it, replacing pipe that had been made by casting sheet, bending it round a rod and soldering the seam. The seam was the weak point and the failure point; extrusion abolished it. The metal behaves almost like a fluid under enough pressure, and the die's shape becomes the product's shape — which is why extrusion can produce complex hollow profiles that no rolling mill could ever form.
Juu
5 hours
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.
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.