Kev sib txuas ntawm inorganic non-hlau thiab hlau hauv electroplated hluav taws xob cua sov raj

Kev sib txuas ntawm inorganic non-hlau thiab hlau hauv electroplated hluav taws xob cua sov raj

Inorganic non-metallic cov ntaub ntawv yog dav siv nyob rau hauv metallurgy, aerospace, machinery, tsheb, electronics, optics thiab lwm yam kev lag luam vim lawv lub zog siab, siab hardness, corrosion kuj, zoo heev rwb thaiv tsev thiab lwm yam ntxwv. Txawm li cas los xij, cov yas tsis zoo thiab tawv tawv ntawm cov khoom siv tsis muaj hlau tsis zoo ua rau nws nyuaj rau tsim cov qauv loj thiab nyuaj, thiab lawv cov kev ua haujlwm txias tsis zoo txwv lawv cov kev siv tswv yim. Lub zog toughness thiab kev ua haujlwm txias ua haujlwm zoo ntawm cov ntaub ntawv hlau tuaj yeem them rau qhov tsis zoo ntawm cov ntaub ntawv ceramic. Yog li ntawd, kev sib txuas thev naus laus zis ntawm inorganic non-metallic cov ntaub ntawv thiab cov ntaub ntawv hlau yeej ib txwm yog ib qho ntawm cov kev tshawb fawb hotspots hauv kev sib txuas ntawm cov khoom siv.

Cov teeb meem tseem ceeb hauv kev sib txuas ntawm cov ntaub ntawv inorganic non-metallic thiab hlau cov ntaub ntawv yog lub cev thiab tshuaj sib raug zoo thiab thermal stress ntawm kev sib txuas. Ntawm cov khoom siv uas tsis muaj tshuaj lom neeg tsis yog xim hlau, ceramics li cov ntaub ntawv rwb thaiv tsev feem ntau yuav tsum tau muab khi thiab txuas nrog cov hlau, thaum cov ntaub ntawv iav tau siv rau hauv lub tshuab nqus tsev vim lawv qhov pom zoo thiab ua haujlwm yooj yim rau ntau yam duab. Cov hom kev sib txuas ntawm cov khoom siv tsis yog xim hlau (ceramics, iav) thiab cov ntaub ntawv hlau yog: iav hlau sealing, ceramic hlau sealing, ceramic hlau active brazing, ceramic hlau transient kua theem diffusion vuam, ceramic hlau fusion brazing. Cov ntsiab lus technical ntawm ntau txoj hauv kev yog:

1. Cov txheej txheem iav hlau sealing ua ntej oxidizes saum npoo ntawm cov hlau (xws li Kovar alloy) kom ua tiav cov dej sib txuas nrog iav. Kovar alloy muaj cov coefficient ntawm thermal expansion zoo ib yam li cov iav, yog li txo qhov kev sib txuas thermal stress.

2. Ceramic hlau sealing txheej txheem tsim ib txheej metallized nruj nreem txuas rau lub ceramic nto tom qab txheej, sintering, thiab electroplating, uas tuaj yeem ncaj qha braze nrog cov ntaub ntawv hlau kom tau cov pob qij txha uas ua tau raws li qhov yuav tsum tau ua.

3. Ceramic hlau active brazing siv cov khoom nquag (xws li Ti) kom ncaj qha cuam tshuam thiab txuas nrog cov theem ceramic, uas tuaj yeem txo cov txheej txheem nyuaj.

4. Cov txheej txheem ceramic hlau hloov ua kua theem Diffusion vuam txheej txheem nrog cov txheej txheem interlayer tuaj yeem txo qhov kev ntxhov siab ntawm kev sib koom ua ke, txhim kho cov khoom siv sib koom ua ke, thiab txhim kho kev hloov pauv ntawm kev sib koom ua ke mus rau qhov kub thiab txias ib puag ncig.

Inorganic non-metallic cov ntaub ntawv thiab metallic cov ntaub ntawv txhua tus muaj lawv cov khoom tshwj xeeb txhua yam thiab hluav taws xob, thiab kev sib txuas ntawm ob

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