Taw qhia rau cov khoom ua haujlwm ntawm Thermostatic Electric Solder Irons
Daim duab kos duab yog tsim los, thiab cov kauj ruam tom ntej yog los npaj cov khoom. Qhov kub thiab txias adjustable hluav taws xob soldering hlau feem ntau yog tswj los ntawm cov thermocouples thiab kev sib xyaw ua ke, nrog rau kev tswj qhov kub thiab txias thiab kho qhov kub thiab txias. Nws yog lub zog muaj zog engineering yas kov, feem ntau yog tsim los ntawm cov khoom siv no: ob lub diodes dub thiab liab, cov tub ntxhais hlau soldering, lub teeb-emitting diode, thermocouple, adjustable resistor, sensor, HA17358, ob electrolytic capacitors, a hlau zaj duab xis resistor, thiab ib tug voltage regulator.
Txhua yam khoom muaj nws lub hom phiaj: adjustable resistors yog siv los kho qhov kub thiab txias, voltage regulators thiab hlau zaj duab xis resistors yog siv los tiv thaiv circuits, thiab electrolytic capacitors yog siv los lim thiab hloov AC rau DC. Thermocouple yog siv los ntsuas qhov ntsuas kub ntawm cov tub ntxhais hlau soldering, thiab nws nres cua sov thaum qhov kub ntawm cov tub ntxhais hlau soldering mus txog qhov kub ntawm qhov kev hloov kho.
Qhov no yog los qhia txog lub hauv paus ntsiab lus ntawm kev ntsuas kub ntawm thermocouple:
Kev siv lub hauv paus ntsiab lus ntawm kev ntsuas kub ntawm thermocouple:
Thermocouples yog ib qho ntawm cov khoom siv ntsuas kub tshaj plaws hauv kev lag luam. Nws qhov zoo yog:
① Kev ntsuas qhov tseeb. Vim yog kev sib cuag ncaj qha ntawm cov thermocouple thiab cov khoom ntsuas, nws tsis cuam tshuam los ntawm qhov nruab nrab nruab nrab.
② Kev ntsuas dav dav. Cov thermocouples feem ntau tuaj yeem ntsuas tsis tu ncua los ntawm -50 mus rau +1600 degree, thaum qee qhov tshwj xeeb thermocouples tuaj yeem ntsuas qhov ntsuas kub qis li -269 degree (xws li kub hlau nickel chromium) thiab mus txog {{3} } degree (xws li tungsten rhenium).
③ Kev tsim kho yooj yim thiab siv tau yooj yim. Thermocouples feem ntau yog tsim los ntawm ob hom hlau hlau, thiab tsis txwv los ntawm qhov loj lossis pib. Lawv muaj lub tes tsho tiv thaiv sab nraud, ua rau lawv yooj yim heev rau siv.
ib. Lub hauv paus ntsiab lus ntawm thermocouple ntsuas kub
solder ob yam khoom ntawm conductors los yog semiconductors A thiab B ua ke los tsim ib tug kaw Circuit Court. Thaum muaj qhov kub thiab txias sib txawv ntawm ob lub ntsiab lus txuas 1 thiab 2 ntawm conductors A thiab B, lub zog hluav taws xob tau tsim los ntawm ob, ua rau muaj qhov sib txawv ntawm qhov sib txawv hauv Circuit Court. Qhov tshwm sim no hu ua cov nyhuv thermoelectric. Thermocouples ua haujlwm los ntawm kev siv cov nyhuv no.
b. Hom thiab cov qauv tsim ntawm Thermocouples
(1) Hom thermocouples
Feem ntau siv cov thermocouples tuaj yeem muab faib ua ob pawg: tus qauv thermocouples thiab tsis yog tus qauv thermocouples. Tus txheej txheem thermocouple xa mus rau yog ib lub thermocouple uas muaj lub teb chaws tus qauv uas qhia txog kev sib raug zoo ntawm nws cov thermoelectric peev xwm thiab qhov kub thiab txias, tso cai yuam kev, thiab ib qho kev sib koom ua ke ntawm cov qauv kawm tiav. Nws muaj nrog cov cuab yeej tso saib muaj rau xaiv. Tsis yog tus qauv thermocouples tsis zoo li cov qauv thermocouples raws li kev siv ntau lossis qhov loj, thiab feem ntau tsis muaj lub rooj kawm tiav. Lawv tsuas yog siv rau kev ntsuas hauv qee lub sijhawm tshwj xeeb. Standardized thermocouple
(2) Txhawm rau kom ntseeg tau tias kev ua haujlwm ruaj khov thiab ruaj khov ntawm cov thermocouples, cov txheej txheem ntawm cov thermocouples yog raws li hauv qab no:
① Lub vuam ntawm ob lub tshuab hluav taws xob uas ua rau lub thermocouple yuav tsum ruaj khov;
② Ob lub thermoelectric electrodes yuav tsum tau zoo insulated los ntawm ib leeg los tiv thaiv luv luv Circuit Court;
③ Kev sib txuas ntawm cov xaim them nyiaj thiab qhov kawg ntawm lub thermocouple yuav tsum yooj yim thiab txhim khu kev qha;
④ Lub tes tsho tiv thaiv yuav tsum xyuas kom muaj kev sib cais txaus ntawm cov thermoelectric electrode thiab cov xov xwm tsis zoo.
c. Kub them nyiaj ntawm thermocouple txias kawg
Vim tias cov ntaub ntawv ntawm cov thermocouples feem ntau kim heev (tshwj xeeb tshaj yog thaum siv cov hlau zoo), thiab qhov kev ncua deb ntawm qhov ntsuas kub thiab ntsuas qhov ntsuas nyob deb heev, thiaj li yuav txuag tau cov ntaub ntawv thermocouple thiab txo cov nqi, cov nyiaj them poob haujlwm feem ntau yog. siv los txuas qhov txias kawg (dawb kawg) ntawm cov thermocouples mus rau chav tswj nrog qhov kub thiab txias thiab txuas lawv mus rau qhov ntsuas terminals. Kev ua haujlwm ntawm cov thermocouple them nyiaj hlau tsuas yog txhawm rau txuas lub tshuab hluav taws xob hluav taws xob, ua rau qhov txias kawg ntawm lub thermocouple txav mus rau qhov ntsuas lub davhlau ya nyob twg hauv chav tswj. Nws tus kheej tsis tuaj yeem tshem tawm qhov cuam tshuam ntawm qhov kub thiab txias ntawm qhov kawg ntawm qhov ntsuas kub thiab tsis muaj qhov cuam tshuam. Yog li, lwm txoj kev kho yuav tsum tau siv los them rau qhov cuam tshuam ntawm qhov txias kawg kub t {{0}} ≠ 0 degree ntawm qhov ntsuas kub.
