Silicon Nitride Thermocouple Tiv Thaiv Tube

Silicon nitride ceramic feem ntau yog siv los ua thermocouple tiv thaiv cov tub raj rau kev ntsuas qhov kub ntawm molten aluminium thiab titanium. Silicon nitride ceramic raj muaj qhov chaw ntub dej tsawg rau molten aluminium thiab tsis corrode nrog molten aluminium, thiab saum npoo tsis nkag rau molten aluminium, yog li thaj chaw tu yog qhov tsis tseem ceeb, thiab nws yog qhov txiaj ntsig ntxiv rau qhov kev txhim kho ntawm cov khoom txhuas khoom. Piv nrog cov hlau nrum, graphite thiab lwm yam ntaub ntawv, silicon nitride tiv thaiv raj yuav tsis xeb los ntawm txhuas kua, thiab lub silicon nitride ceramic kuj yog cov khoom siv hluav taws xob zoo ua kom zoo, yog li xyuas qhov tseeb thiab qhov paub ntawm qhov ntsuas kub. Roj siab sintered silicon nitride yog 100% cov khoom siv ntom ntom, thiab cov kua txhuas tsis tuaj yeem tsis nqus. Silicon nitride tsim tawm los ntawm cov tshuaj tiv thaiv sintering cov txheej txheem muaj kev pab cuam lub neej luv luv, thiab muaj ntau lub qhov hws hauv cov khoom siv, thiab kua txhuas ua kua yuav nkag rau lub sijhawm ntev. Ntxiv rau, silicon nitride thermocouple tiv thaiv raj muaj cov tshuaj tiv thaiv oxidation muaj zog, thiab tuaj yeem siv mus ntev ntev hauv huab cua qis dua 1,000 degrees Celsius tsis muaj oxidation. Tsis tas li ntawd, ntawm cov ntom ntom ntom ntom ntom, silicon nitride ceramic muaj zoo heev thermal poob siab ua hauj, tsis kam mus rau huab txias thiab kub kub, rov ua lwm yam hauv molten aluminium thiab huab cua tsis tawg, thiab tuaj yeem tswj lub zog zoo ib yam. Vim tias qhov kub siab tshaj qhov kev ua tau zoo ntawm silicon nitride tube, nws muaj lub neej pabcuam ntawm tsawg kawg 6 lub hlis hauv kev lag luam aluminium, thiab kev ntsuas tseeb tiag yog ntau dua 1 xyoos. Nws muaj tus nqi ua haujlwm siab heev.

Cov Khoom Muaj Khoom Siv

Nco tseg: Txawm hais tias peb tsis muaj laj thawj tsis ntseeg tias qhov tseeb ntawm cov ntaub ntawv hais tawm, cov ntaub ntawv no tsuas yog muab rau kev sib piv nkaus xwb. Cov yam ntxwv tseeb yuav sib txawv raws cov qauv tsim khoom thiab cov qauv ua haujlwm, thiab qee zaum yuav raug txiav raws li qhov tshwj xeeb.

Cov Txheej Txheem Ntau Lawm

Thawj yog slurry npaj. Cov khoom siv hauv cov khoom siv nyoos yog pob-milled siv silicon nitride sib tsoo xov xwm thiab dej cawv kom tau txais ib qho slurry uas muaj qhov nruab nrab cov zaub mov qhov loj me me ntawm 0.1-2.0 zaub mov. Tom ntej no yog tshuaj tsuag granulation kho. Lub tshuab ua tau zoo yog do thiab tom qab ntawd txau kom qhuav kom tau txais cov hmoov av ntawm cov khoom siv ua hmoov nrog cov khoom nruab nrab ntawm 20-300WH thiab cov dej cawv cov ntsiab lus ntawm 0.1-0.3%. Qhov thib peb kauj ruam yog txias isostatic nias, nyob rau hauv uas granulated raw cov hmoov tshuaj yog raug rau txias isostatic nias los tsim lub cev lub cev. Kauj ruam plaub yog kev kho cov pa roj sintering kev kho mob hauv qhov chaw sov. Lub uniformly nias ntsuab lub cev yog muab tso rau hauv qhov chaw siab atmospheric siab sintering rauv thiab ua txhaum nyob rau hauv ib puag ncig huab cua siab kom tau txais ib yam khoom uas tsis muaj lub qhov hws. Qhov kawg yog kev kho mob saum npoo av. Cov khoom lag luam sintered raug rau saum npoo tshuab kev sib tsoo kho nrog pob zeb diamond cuab yeej kom tau cov khoom kawg.

Cim npe nrov: silicon nitride thermocouple tiv thaiv raj, Tuam Tshoj, cov chaw muag khoom, chaw tsim khoom