Qauv & Txoj Cai
Bimetal thermometers yog tsim los ntawm thermal expansion thiab contraction hauv paus ntsiab lus ntawm cov hlau. Lawv feem ntau muaj qhov ntsuas qhov ntsuas kub, lub raj tiv thaiv hlau, kis tau tus mob thiab tus taw tes, hu xov tooj thiab rooj plaub, thiab cov khoom sib txuas.
Ib daim kab xev bimetallic yog tsim los ntawm ob daim hlau uas muaj qhov sib txawv thermal expansion coefficients sib txuas ua ke. Lub bimetallic sawb yog txiav thiab coiled rau hauv ib tug kauv los yog lwm yam tsim nyog cov duab los ua tusqhov ntsuas kub ntsuas.
Hauv kev tsim cov khoom siv hluav taws xob bimetal, qhov ntsuas qhov ntsuas feem ntau yog nruab rau hauv cov hlau tiv thaiv raj, nrog rau ib qho kawg ruaj rau hauv qab ntawm lub raj (taw kawg), thiab lwm qhov kawg txuas nrog tus taw tes ntawm lub xaim xaim (xws li cov ncej nyias thiab hloov tau yooj yim) raws li qhov kawg.
Thaum qhov kub hloov pauv, qhov ntsuas qhov ntsuas coils lossis uncoils, tsav qhov kawg kom tig. Lub xaim ncej ces ua rau tus pointer deflect los ntawm lub kaum sab xis. Lub kaum sab xis ntawm lub pointer muaj ib qho kev sib raug zoo ntawm qhov kub thiab txias. Tom qab calibration, lub cuab yeej siv tau rau kev ntsuas kub.
Technical Parameters
|
Kev ntsuas ntau |
-80 ~ 500 degree |
|
Ntsuas qhov tseeb |
Chav Kawm 1.5, Chav Kawm 1.0 |
|
Kev daws teeb meem |
1 ~ 5.0 degree |
|
Thermal teb lub sij hawm |
Tsawg dua los yog sib npaug li 40 s |
|
Tiv thaiv txoj kab uas hla |
Φ12, 10, 8, 6, 4 |
|
Mounting xov |
M27×2 |
|
Dial txoj kab uas hla |
150, 100, 60, 40, 25 |
|
Qib tiv thaiv |
IP55 |
|
Lub kaum sab xis hloov yuam kev |
Tsis pub tshaj 1.0% ntawm tag nrho cov nplai |
|
Hysteresis |
Tsis ntau dua tus nqi kiag ntawm qhov kev txwv qhov yuam kev |
|
Rov ua dua |
Tsis ntau tshaj 1/2 ntawm tus nqi kiag li ntawm qhov kev txwv tsis raug cai |
|
Cov qauv siv tau |
JB/T 8803, JJG 226 |
Classification & Application
Bimetal thermometers tau muab faib ua hom axial, hom radial, 135℃kaum hom, thiab universal hom raws li kev taw qhia ntawm lub dial thiab lub raj tiv thaiv.
Raws li kev ua haujlwm, lawv tau muab faib ua hom qauv, hom hluav taws xob tiv tauj lub tswb, thiab hom kev sib kis ntawm cov chaw taws teeb.
Raws li ib puag ncig ib puag ncig, lawv tau muab faib ua hom qauv, hom shockproof, tawg- hom pov thawj, thiab hom tsis muaj dej.
Cov ntsuas kub bimetal yog cov cuab yeej zoo tshaj plaws rau ntawm - qhov ntsuas kub ntawm qhov chaw nruab nrab thiab qis qis (-80 ~ 500 degree) yam tsis muaj hluav taws xob sab nraud, ua lwm txoj hauv kev ntsuas ntsuas dej. Lawv tau siv dav hauv kev lag luam xws li petrochemical, shipbuilding, machinery, pharmaceuticals, thiab lwm yam.