Lub ntsiab sib txawv ntawmthoriated tungsten electrodethiab lanthanum tungsten electrode yog raws li nram no:
1. Cov khoom xyaw sib txawv
Thoriumtungsten electrode: Cov khoom xyaw tseem ceeb yog tungsten (W) thiab thorium oxide (ThO₂). Cov ntsiab lus ntawm thorium oxide feem ntau yog nyob nruab nrab ntawm 1.0% -4.0%. Raws li cov khoom siv hluav taws xob, cov xov tooj cua ntawm thorium oxide tuaj yeem txhim kho cov hluav taws xob emission muaj peev xwm rau qee yam.
Lanthanum tungsten electrode: Nws yog tsim los ntawm tungsten (W) thiab lanthanum oxide (La₂O₃). Cov ntsiab lus ntawm lanthanum oxide yog li ntawm 1.3% - 2.0%. Nws yog lub ntiaj teb tsis tshua muaj oxide thiab tsis muaj hluav taws xob.
2. Cov yam ntxwv ua haujlwm:
Electron emission kev ua tau zoo
Thoriumtungsten electrode: Vim yog lub xov tooj cua tawg ntawm thorium caij, qee cov hluav taws xob dawb yuav raug tsim tawm ntawm qhov chaw ntawm cov electrode. Cov khoom siv hluav taws xob no pab txo qis kev ua haujlwm ntawm cov electrode, yog li ua kom lub zog hluav taws xob muaj zog. Nws tseem tuaj yeem tso tawm cov khoom siv hluav taws xob ntau ruaj khov ntawm qhov kub thiab txias, uas ua rau nws ua tau zoo dua nyob rau qee lub sijhawm xws li AC vuam qhov yuav tsum tau pib arc nquag.
Lanthanum tungsten electrode: Lub electron emission kev ua tau zoo kuj kuj zoo. Txawm hais tias tsis muaj xov tooj cua auxiliary electron emission, lanthanum oxide tuaj yeem kho cov qauv nplej ntawm tungsten thiab khaws cov electrode ntawm qhov zoo electron emission stability ntawm qhov kub thiab txias. Nyob rau hauv DC welding txheej txheem, nws muaj peev xwm muab ib tug ruaj khov arc thiab ua rau lub vuam zoo sib xws.
Kub kub tsis kam
Thorium tungsten electrode: Nyob rau hauv ib puag ncig kub, vim muaj cov thorium oxide, cov hluav taws xob kub hnyiab tuaj yeem txhim kho rau qee yam. Txawm li cas los xij, nrog rau kev siv sij hawm nce ntxiv thiab qhov nce ntawm qhov vuam tam sim no, lub taub hau electrode tseem yuav hlawv rau qee yam.
Lanthanum tungsten electrode: Nws muaj kev kub hnyiab zoo. Lanthanum oxide tuaj yeem tsim cov yeeb yaj kiab tiv thaiv ntawm qhov chaw electrode ntawm qhov kub thiab txias los tiv thaiv oxidation ntxiv thiab hlawv ntawm tungsten. Thaum lub sijhawm vuam tam sim no lossis kev ua haujlwm ntev ntev, qhov kawg ntawm lub lanthanum tungsten electrode tuaj yeem nyob ruaj khov, txo cov naj npawb ntawm cov khoom siv hluav taws xob ntau zaus.
Arc pib ua haujlwm
Thorium tungsten electrode: Nws yog ib qho yooj yim los pib lub arc, vim tias nws txoj haujlwm qis dua tso cai rau cov kab hluav taws xob tsim los ntawm cov hluav taws xob thiab cov vuam siv tau sai heev thaum lub sij hawm arc pib, thiab cov arc tuaj yeem ignited kuj smoothly.
Lanthanum tungsten electrode: Lub arc pib kev ua tau zoo yog me ntsis qis dua ntawm thorium tungsten electrode, tab sis nyob rau hauv cov khoom siv vuam tsim nyog, nws tseem tuaj yeem ua tiav cov txiaj ntsig zoo pib. Thiab nws ua tau zoo nyob rau hauv arc stability tom qab arc pib.
3. Daim ntawv thov scenarios
Thoriumtungsten electrode
Vim nws qhov zoo electron emission kev ua tau zoo thiab arc pib kev ua tau zoo, nws yog feem ntau siv nyob rau hauv AC argon arc vuam, tshwj xeeb tshaj yog thaum vuam aluminium, magnesium thiab nws alloys thiab lwm yam ntaub ntawv uas muaj siab arc pib yuav tsum tau. Txawm li cas los xij, vim muaj cov hluav taws xob muaj hluav taws xob, nws siv tau txwv hauv qee lub sijhawm nrog kev tiv thaiv hluav taws xob nruj, xws li kev tsim khoom siv kho mob, khoom noj khoom haus kev lag luam khoom siv vuam thiab lwm yam kev lag luam.
Lanthanum tungsten electrode
Vim tias tsis muaj hluav taws xob txaus ntshai, nws cov ntawv thov ntau dua. Nws tuaj yeem siv rau hauv DC argon arc vuam thiab qee qhov AC argon arc vuam xwm txheej. Thaum vuam cov ntaub ntawv xws li stainless hlau, carbon hlau, tooj liab alloy, thiab lwm yam., nws muaj peev xwm exert nws ruaj khov arc kev ua tau zoo thiab kub kub tsis kam los xyuas kom meej vuam zoo.
4. Kev nyab xeeb
Thorium tungsten electrode: Vim tias nws muaj cov thorium oxide, cov khoom siv hluav taws xob, nws yuav tsim qee yam kev phom sij hauv xov tooj cua thaum siv. Yog tias raug rau lub sijhawm ntev, nws yuav muaj kev cuam tshuam tsis zoo rau kev noj qab haus huv ntawm cov neeg ua haujlwm, suav nrog kev pheej hmoo ntawm cov kab mob xws li mob qog noj ntshav. Yog li ntawd, thaum siv thoriated tungsten electrodes, yuav tsum muaj kev tiv thaiv hluav taws xob nruj, xws li hnav khaub ncaws tiv thaiv thiab siv cov khoom siv hluav taws xob saib xyuas.
Lanthanum tungsten electrodes: tsis muaj cov khoom siv hluav taws xob, muaj kev nyab xeeb, thiab tsis tas yuav txhawj xeeb txog cov kab mob sib kis thaum siv, ua tau raws li kev tiv thaiv ib puag ncig thiab kev noj qab haus huv thiab kev nyab xeeb.
Post lub sij hawm: Dec-19-2024