SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Bourdon-Tube Pressure Gauge
The heart of a dial pressure gauge is the Bourdon tube: a metal tube of oval section bent into a C and sealed at its free end. The greater the pressure, the farther the free tip moves, but only about 0.125–0.25 in (3–6 mm) across the whole range. A geared movement, built much like clockwork, turns that small movement into the sweep of a pointer, usually over 270° of dial. The tube metal must take a spring temper; phosphor bronze is used for most gauges for air, light oil or water, and beryllium copper for high pressure. The tube's wall thickness and the radius of its curve set the pressure range.
Juu
Factory process
Maagizo
1
1
Roll the C
Roll the C
Pass the tubing over a lubricated steel mandrel and between two grooved, powered rollers. One roller grips the end and bends the inside radius while the other presses from outside; the grooves keep the tube from flattening.
Vifaa kwa hatua hii:
Mrija wa shaba ya fosforasi1 as requiredZana zinazohitajika:
Mashine ya kupinda mirija ya Bourdon2
2
Cut and heat treat
Cut and heat treat
As the roller keeps turning, a saw blade on it cuts the tube to length. Heat treat the tubes in ovens to give them their spring temper.
Zana zinazohitajika:
Tanuri ya kutibu kwa joto3
3
Machine the socket
Machine the socket
Turn, drill, mill and thread the socket from bar stock in one cycle on a machining centre. One end is threaded to screw into the pressure source.
Vifaa kwa hatua hii:
Ufito Duara wa Shaba ya Njano1 as requiredZana zinazohitajika:
Kituo cha uchakataji cha CNC4
4
Join tube and socket
Join tube and socket
Solder, braze or weld the open end of the tube to the socket, locating the free end precisely, and seal the free end the same way. Fit an endpiece to the tip; its small hole links the tip to the movement.
Zana zinazohitajika:
Kichomeo cha kulehemu kwa shaba5
5
Fit movement, dial and pointer
Fit movement, dial and pointer
Mount the movement, the dial and the pointer onto the socket as a group.
Vifaa kwa hatua hii:
Mtambo wa kipimo cha shinikizo1 kipande
Uso na mshale wa kipimo1 kipande6
6
Calibrate and case
Calibrate and case
Connect the assembly to a pressure source alongside a master gauge of known accuracy and adjust it until it reads the same; 2% is a common accuracy, finer grades 1, 0.5 or 0.25%. Then fit the case and lens.
Vifaa kwa hatua hii:
Kasha na lenzi ya kipimo1 kipandeZana zinazohitajika:
Benchi la kusawazisha lenye kipimo kikuuVifaa
5- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Zana Zinazohitajika
5- 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.