Cov txheej txheem ib txwm muaj rau kev tso cov txheej tawv tawv

1. Kev siv tshuab thermal CVD

Cov txheej tawv feem ntau yog cov hlau ceramic coatings (TiN, thiab lwm yam), uas yog tsim los ntawm cov tshuaj tiv thaiv ntawm cov hlau hauv cov txheej thiab cov pa roj reactive. Thaum xub thawj, cov thev naus laus zis thermal CVD tau siv los muab lub zog ua kom muaj zog ntawm kev sib xyaw ua ke los ntawm lub zog thermal ntawm qhov kub siab ntawm 1000 ℃. Qhov kub no tsuas yog tsim rau kev tso TiN thiab lwm cov txheej tawv rau ntawm cov cuab yeej cemented carbide. Txog tam sim no, nws tseem yog ib qho thev naus laus zis tseem ceeb rau kev tso TiN - Al2O3 composite coatings rau ntawm cov cuab yeej cemented carbide taub hau.

1. Txheej ion cathode hollow thiab txheej hlau kub arc ion

Xyoo 1980, cov txheej txheem ion cathode hollow thiab cov txheej txheem arc ion kub tau siv los tso cov cuab yeej txiav uas tau coated. Ob qho tib si ntawm cov txheej txheem ion coating no yog cov txheej txheem arc discharge ion coating, nrog rau tus nqi ionization hlau txog li 20% ~ 40%.

1. Cathode arc ion txheej

Qhov tshwm sim ntawm cathodic arc ion cating tau ua rau muaj kev txhim kho ntawm cov thev naus laus zis ntawm kev tso cov txheej tawv rau ntawm cov pwm. Tus nqi ionization ntawm cathodic arc ion txheej yog 60% ~ 90%, uas tso cai rau ntau cov hlau ions thiab cov pa roj ions kom ncav cuag qhov chaw ntawm qhov workpiece thiab tseem tswj tau qhov kev ua haujlwm siab, ua rau muaj kev tso cov tshuaj tiv thaiv thiab tsim cov txheej tawv xws li TiN. Tam sim no, cathodic arc ion txheej thev naus laus zis feem ntau yog siv los tso cov txheej tawv rau ntawm cov pwm.

Lub cathode arc qhov chaw yog ib qho khoom siv evaporation solid-state tsis muaj lub pas dej molten ruaj khov, thiab qhov chaw ntawm arc qhov chaw tuaj yeem tso rau qhov chaw tsis xav tau, txhim kho qhov chaw siv ntawm chav txheej thiab ua kom lub cub tawg muaj peev xwm thauj khoom. Cov duab ntawm cathode arc qhov chaw suav nrog cov khoom me me ncig cathode arc qhov chaw, columnar arc qhov chaw, thiab rectangular tiaj tiaj loj arc qhov chaw. Cov khoom sib txawv ntawm cov khoom me me arc qhov chaw, columnar arc qhov chaw, thiab cov khoom loj arc qhov chaw tuaj yeem npaj sib cais los tso cov yeeb yaj kiab ntau txheej thiab cov yeeb yaj kiab nano ntau txheej. Lub caij no, vim yog qhov siab ntawm cov hlau ionization ntawm cathodic arc ion txheej, cov hlau ions tuaj yeem nqus tau ntau cov pa roj teb, ua rau muaj ntau yam txheej txheem thiab kev ua haujlwm yooj yim kom tau txais cov txheej tawv zoo heev. Txawm li cas los xij, muaj cov dej me me hauv cov qauv me me ntawm cov txheej txheej tau los ntawm cathodic arc ion txheej. Nyob rau hauv xyoo tas los no, ntau cov thev naus laus zis tshiab tau tshwm sim los txhim kho cov qauv ntawm cov txheej zaj duab xis, uas tau txhim kho qhov zoo ntawm cov yeeb yaj kiab arc ion txheej.