Kev daws teeb meem ntawm qhov kub thiab txias tsis tas li ntawm qhov kub thiab txias soldering hlau
Qhov kub thiab txias tsis tu ncua ntawm cov hlau txuas tau txais lub siab kub Curie kub sawb PTC qhov kub thiab txias nyob rau hauv, nruab nrog lub fastening thermal conductive qauv. Cov yam ntxwv yog superior rau cov tsoos hluav taws xob cua sov hlau soldering hlau cores, nrog ceev cua sov, txuag hluav taws xob, txhim khu kev qha lag luam, kev pab lub neej ntev, thiab tus nqi qis. Tsis tshua muaj hluav taws xob PTC cua sov cov ntsiab lus tuaj yeem siv rau hauv kev ua haujlwm yooj yim txij nkawm.
Feem ntau malfunction ntawm ib tug tas li kub soldering hlau yog kub runaway, uas ua rau lub soldering hlau qhov kub siab heev. Ntawm ib sab, nws ua rau kub-kub oxidation ntawm cov hlau taub hau (lub solder kuj oxidized tib lub sij hawm); Ntawm qhov tod tes, vuam ntawm qhov kub thiab txias kuj tseem tuaj yeem hlawv cov khoom hluav taws xob tau yooj yim. Thaum cov hlau soldering ua haujlwm ntawm qhov kub siab ntev ntev, nws kuj yog ib qho yooj yim los ua kev puas tsuaj rau nws sab hauv Circuit Court, ua rau tsis muaj kev tswj xyuas tas li lossis txawm tias siv tsis tau. Thaum lub sij hawm kev soj ntsuam txhaum, nws yuav pom tias zawv zawg sib cuag ntawm qhov kub thiab txias regulating resistor R2 yog oxidized thiab ua rau cov neeg pluag kev sib cuag, uas yog sib npaug rau qhov kub thiab txias tau hloov mus rau qhov siab tshaj plaws sab sauv txwv, uas ua rau ib tug ntau dua kub ntawm soldering hlau. Muaj ob lub laj thawj tseem ceeb rau qhov no: ua ntej, thaum lub tshuab ua haujlwm hlau ua haujlwm, nws hloov qee qhov cua sov mus rau qhov kov ntawm cov hlau soldering (hauv Circuit Court), ua rau qhov kub ntawm qhov chaw ua haujlwm ntawm lub voj voog kom nce. Tom qab ib lub sij hawm, nws yog ib qho yooj yim los ua oxidation ntawm R2 tus tsiv hu; Qhov thib ob qhov teeb meem yog tias tam sim no limiting resistor R1 nyob rau hauv lub rectification thiab filtering Circuit Court dissipates tshav kub, ua rau ib tug nce nyob rau hauv qhov chaw ua hauj lwm kub thiab yooj yim ua rau lub oxidation ntawm R2 tus tsiv hu.
Txhawm rau tiv thaiv qhov tsis raug tshwm sim, ob txoj hauv kev hauv qab no ntawm kev hloov kho lub voj voog raug npaj:
(1) Hloov kho qhov hloov tau R2 nrog ib qho kev tiv thaiv ruaj khov: Ua ntej kho R2 kom ncav cuag qhov ntsuas kub zoo rau kev siv cov hlau soldering ib txwm, tom qab ntawd ntsuas tus nqi ntawm R2 thiab hloov nws nrog cov khoom ruaj khov.
(2) Hloov cov rectifier Circuit Court
