Kub kub kuj MLa Hlau
Ntau hom hlau yog tsim los tiv thaiv qhov kub thiab txias, suav nrog:
1. Nickel-based alloys: Nickel-based welding xov hlau, xws li Inconel thiab nichrome, paub txog lawv qhov kub thiab txias thiab feem ntau siv rau hauv cov ntawv thov uas yuav tsum tau ua kom muaj cua sov, xws li cov khoom cua sov thiab cov cua sov ua haujlwm.
2. Tungsten: tungsten hlau muaj qhov taw tes melting siab heev thiab siv rau hauv cov ntawv thov kub xws li cov qij taws teeb thiab cov khoom cua sov hauv cov cua kub kub.
3. Molybdenum: Molybdenum hlau kuj muaj qhov siab melting point thiab yog siv nyob rau hauv high-temperature daim ntaub ntawv, nrog rau cov aerospace thiab electronics industries.
4. Platinum: Platinum hlau yog lub npe hu rau nws qhov kub thiab txias stability thiab siv nyob rau hauv cov khoom siv kuaj, thermocouples thiab lwm yam kev siv kub.
Cov xov hlau no tau tsim tshwj xeeb los tiv thaiv huab cua kub thiab siv ntau yam kev lag luam, kev tshawb fawb thiab kev siv tshuab uas yuav tsum tau muaj kev kub ntxhov.
Feem ntau hais lus, cov hlau kub muaj qhov ua haujlwm siab dua li cov xaim txias. Qhov no yog vim qhov tsis kam ntawm cov khoom siv feem ntau nce nrog qhov kub thiab txias. Qhov kev sib raug zoo no tau piav qhia los ntawm qhov kub thiab txias coefficient ntawm kev tiv thaiv, uas ntsuas qhov ntau npaum li cas cov khoom hloov pauv nrog kub.
Thaum cov hlau yog rhuab, lub zog thermal zog ua rau cov atoms nyob rau hauv cov khoom vibrate ntau dua, ua rau muaj kev sib tsoo ntau dua nrog cov kwj deg. Qhov no muaj zog atomic vibration cuam tshuam kev txav ntawm electrons, ua rau muaj zog dua rau cov dej ntws ntawm hluav taws xob.
Hloov pauv, raws li cov xaim txias, qhov txo qis hauv thermal zog ua rau cov atoms vibrate tsawg dua, yog li txo qhov tsis kam mus rau qhov ntws ntawm hluav taws xob.
Nws yog ib qho tsim nyog sau cia tias qhov kev sib raug zoo ntawm qhov kub thiab txias no tsis siv rau txhua yam ntaub ntawv, vim qee cov ntaub ntawv tuaj yeem pom qhov tsis zoo ntawm qhov kub thiab txias coefficient ntawm kev ua haujlwm, txhais tau hais tias lawv qhov tsis kam txo qis thaum kub nce. Txawm li cas los xij, rau feem ntau cov khoom siv hluav taws xob, suav nrog cov hlau xws li tooj liab thiab txhuas, kev tiv thaiv feem ntau nce nrog qhov kub thiab txias.
Thaum cov xov hlau muaj kev tiv thaiv siab, ntau yam cuam tshuam thiab qhov tshwm sim tuaj yeem tshwm sim, nyob ntawm qhov xwm txheej thiab daim ntawv thov. Nov yog qee qhov txiaj ntsig dav dav rau cov xaim hluav taws xob siab:
1. Cua sov: Thaum hluav taws xob tam sim no dhau los ntawm cov xaim hluav taws xob siab, cov cua kub ntau yog tsim. Cov cuab yeej no tuaj yeem siv rau hauv cov khoom cua sov xws li cov uas pom hauv toasters, hluav taws xob qhov cub thiab cov khoom siv hluav taws xob.
2. Voltage poob: Nyob rau hauv ib lub voj voog, cov xaim hluav taws xob muaj zog tuaj yeem ua rau qhov hluav taws xob tseem ceeb poob raws qhov ntev ntawm cov hlau. Qhov no yuav cuam tshuam rau kev ua haujlwm ntawm lub voj voog thiab kev ua haujlwm ntawm cov khoom siv txuas nrog.
3. Lub zog poob: Cov kab hluav taws xob muaj zog ua rau lub zog poob rau hauv daim ntawv ntawm cov cua sov, txo cov kev ua haujlwm ntawm cov hluav taws xob thiab cov khoom siv.
4. Txo cov hluav taws xob tam sim no: Cov kab hluav taws xob muaj zog txwv tsis pub khiav ntawm cov hluav taws xob tam sim no, uas tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob thiab cov tshuab hluav taws xob, tshwj xeeb tshaj yog cov uas yuav tsum tau muaj cov tam sim no siab.
5. Cheebtsam cua sov: Hauv cov khoom siv hluav taws xob, kev sib txuas siab lossis cov khoom siv hluav taws xob tuaj yeem ua rau cov cua sov hauv cheeb tsam, cuam tshuam rau kev ua haujlwm thiab kev ntseeg siab ntawm Circuit Court.
Zuag qhia tag nrho, qhov cuam tshuam ntawm kev ua haujlwm siab hauv cov xov hlau nyob ntawm qhov kev thov tshwj xeeb thiab kev npaj ua haujlwm ntawm cov xov hlau hauv qhov system.
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