Daim Ntawv Thov ntawm Tungsten-Rhenium Thermocouple nyob rau hauv cemented carbide cov txheej txheem

Hauv kev tsim cov tungsten carbide, tungsten-rhenium thermocoumles tau dhau los ua qhov kub thiab kub ua hauj lwm, siab precision thiab corrosion tsis kam. Hauv qab no yog cov ntawv thov tshwj xeeb thiab cov ntsiab lus qhia tshwj xeeb:

1. Kev soj ntsuam kub hauv Sintering cov txheej txheem

- Daim Ntawv Thov Kev Ua Ntawv:

- Tus carbide sintering kub yog ib txwm 1400 ~ 1600 degree, uas yuav tsum tau ua kom muaj kev tswj hwm carbide kev loj hlob thiab tsim nyog ntub dej ntawm cov binder theem (piv txwv li cobalt).

- Saib xyuas lub ntsuas kub thiab txias rau hauv cov sintering rauv kom tsis txhob muaj cov nplej vim muaj kev kub ntxhov los yog hauv qab-hlawv ua rau tsis muaj zog.

- Kev ua txuj ci:

- Ntsuas dav txoj kev ntsuas ntau yam: nws tuaj yeem them rau 1000 ~ 2300 degree kom tau raws li qhov xav tau ntawm Ultra-siab sintering.

- Cov lus teb ceev: Kev ntes tau sai sai thiab txhawb nqa kev haum zog ntawm sintering nkhaus.

- Kuj yuav tsum txo cov cua nab kuab: superior stability rau platinum Rhodium throdoco thermocoen lossis lub tshuab nqus tsev sintering lossis lub tshuab nqus tsev sintering.

2. Kev tswj qhov kub ntawm cov txheej txheem melting

- Daim Ntawv Thov Kev Ua Ntawv:

- Siv los soj ntsuam qhov kub ntawm cov hlau melts (piv txwv li, cobalt-based alloys) nyob rau hauv rauv melting (piv txwv li, intermediate NTAU SOUNCES) kom ntseeg tau cov kev sib xyaw ua ke.

- Tswj yaj ncuav qhov kub kom tsis txhob muaj porosity los yog tawg yam tsis xws luag vim yog ntsuas kub.

- Cov ntsiab lus technical:

- resistant rau hlau yaj yaig erosion: corundum lossis silicon carbide tiv thaiv lub tes tsho

- Lub sijhawm ntev ruaj khov: tswj qhov tseeb hauv qhov kub-kub yaj thiab txo cov zaus ntawm calibration.

3. Cov txiaj ntsig tseem ceeb

- Cov kev ntsuas kub siab tiv thaiv: qhov ntsuas kub tshaj plaws yog nce mus txog 2300 degree, uas deb tshaj qhov ntsuas kub ntawm cov txheej txheem carbide.

- High rhiab: siab thermoelectric muaj peev xwm tus nqi (txog 10 ~ 12μv / degree) tuaj yeem tshawb xyuas qhov ntsuas kub me me.

- Nqi-siv txiaj ntsig: tsawg dua li platinum Rhodium rho thermoco thermoco thermocouples thiab tshem tawm cov kev them nyiaj rau cov hlau ua.

- Kev cuam tshuam kev cuam tshuam tiv thaiv muaj peev xwm: teeb liab ruaj khov nyob rau hauv cov liaj sib nqus muaj zog (piv txwv li, induction cua sov).

4. Txhim kho thiab txij nkawm

- Mounting txoj hauj lwm:

- Ze rau lub workpiece nyob rau hauv cov sintering rauv tab sis zam kev sib cuag kom ntseeg tau tias qhov tseeb kub yog ntsuas.

- Cov yaj yuav tsum tau ntxig rau hauv lub cub tawg mus rau qhov tob ntawm ntau dua lossis sib npaug rau 100 mm los txo cov cawv ntawm qhov kub thiab txias.

- Kev Tiv Thaiv Kev Tiv Thaiv:

- Siv ob-txheej tiv thaiv lub tes tsho (EG sab nraud Corundum + sab hauv Silicon Carbide) kom cais cov tshuab corrosive.

- Txheeb xyuas lub tes tsho rau kev hnav los tiv thaiv kev tawg uas tuaj yeem ua rau thermocouple tsis ua hauj lwm.

- Kev ntsuas hluav taws xob lub voj voog: nws raug nquahu kom ntsuas calibrate txhua 6 lub hlis kom paub tseeb tias qhov tseeb (feem ntau 0. 5% FS).

5. Kev ceev faj

- Oxidation tau: Nws yooj yim rau oxidize hauv huab cua lossis oxidizing huab cua, thiab xav tau kev tiv thaiv los ntawm cov roj inert.

- Neeg kho tshuab zog: tungsten rhenium xaim hlau muaj nkig thiab yuav tsum zam zam kev co lossis khoov.

- Ib puag ncig sib haum: zam kev sib cuag nrog cov tshuaj uas muaj cov leej faj, phosphorus thiab lwm cov ntsiab lus los tiv thaiv kev lom neeg corrosion.

Cov xwm txheej ib txwm muaj

- Lub tshuab tungsten carbide cuab yeej: siv hom B Tungsten-rhi demoulti (interction ±) hauv 3%, thiab txo cov nqi ntawm kab ntawv los ntawm 1.5%.

- Tungsten carbide hmoov melting: lub suab ceebtoom ntsuas kub yog soj ntsuam nyob rau hauv cov txheej txheem c-rhing tungocouple (wre {3}} cov teeb meem ntawm cov khoom tawg.

Los ntawm kev xaiv muaj kuab, cov kev ua kom zoo ntawm cov txheej txheem kev teeb tsa kub, tungsten-rhenium thermocoup tuaj yeem txhim kho cov khoom khov kho thiab tawm los ntawm kev ua kom cov paemented carbide. Hauv cov ntawv thov siv tau, nws yog ib qho tsim nyog los xaiv cov hom thermocouple tsim nyog (hom b) thiab hom kev tshwj xeeb (xws li kub siab tshaj).