Yuav Ua Li Cas Rov Siv Tungsten Carbide Cov Cuab Yeej

Tungsten carbide tseem hu ua tungsten alloy, cemented carbide, hard alloy, thiab tawv hlau. Cov cuab yeej tungsten carbide tau nrov zuj zus hauv kev lag luam niaj hnub txij li xyoo 1920s. Nrog rau ib puag ncig, kev rov ua dua tshiab ntawm cov khoom siv tungsten carbide tshwm sim uas tuaj yeem ua rau muaj nqi thiab siv zog. Muaj peev xwm ua tau ib txoj kev siv lub cev los yog kev siv tshuaj. Txoj kev siv lub cev feem ntau yog txhawm rau rhuav tshem cov cuab yeej tungsten carbide rau hauv daim, uas yog ib qho nyuaj rau kev paub thiab raug nqi ntau vim yog qhov nyuaj ntawm cov cuab yeej tungsten carbide. Yog li, kev rov ua dua tungsten carbide tej cuab yeej feem ntau pom tau hais hauv cov txheej txheem tshuaj. Thiab peb txoj kev tshuaj yuav raug qhia --- zinc rov qab, electrolytic rov qab, thiab rho tawm los ntawm oxidation.

Zinc Recovery

Zinc yog ib hom tshuaj lom neeg nrog atomic tooj 30, uas muaj cov ntsiab lus melting ntawm 419.5 ℃ thiab cov ntsiab lus kub ntawm 907 ℃. Nyob rau hauv cov txheej txheem ntawm zinc rov qab, tungsten carbide txiav cov cuab yeej muab tso rau hauv cov zinc molten nyob rau hauv ib puag ncig ntawm 650 mus rau 800 ℃ ua ntej. Cov txheej txheem no tshwm sim nrog cov roj inert nyob rau hauv lub cub hluav taws xob. Tom qab cov zinc rov qab, zinc yuav tsum tau distilled nyob rau hauv ib tug kub ntawm 700 txog 950 ℃. Raws li qhov tshwm sim ntawm zinc rov qab, cov hmoov rov qab yog ze li tib yam li cov hmoov nkauj xwb hauv kev faib ua feem.

Electrolytic Recovery

Nyob rau hauv cov txheej txheem no, cobalt binder tuaj yeem yaj los ntawm electrolyzing cov seem ntawm tungsten carbide txiav cov cuab yeej kom rov qab tau cov tungsten carbide. Los ntawm electrolytic rov qab, yuav tsis muaj paug nyob rau hauv reclaimed tungsten carbide.

Extraction los ntawm Oxidation

1. Tungsten carbide seem yuav tsum tau zom los ntawm fusion nrog oxidizing cov neeg ua haujlwm kom tau cov sodium tungsten;

2. Sodium tungsten tuaj yeem kho nrog dej thiab muaj kev pom thiab nag lossis daus kom tshem tawm cov impurities kom tau purified sodium tungsten;

3. Purified sodium tungsten tuaj yeem cuam tshuam nrog cov reagent, uas tuaj yeem yaj hauv cov organic hnyav, kom tau cov tungsten hom;

4. Ntxiv cov tshuaj aqueous ammonia thiab rov muab rho tawm, peb tuaj yeem tau txais cov tshuaj ammonium poly-tungstate;

5. Nws yog ib qho yooj yim kom tau txais ammonium para-tungstate siv lead ua los ntawm evaporating ammonium poly-tungstate tov;

6. Ammonium para-tungstate tuaj yeem calcined thiab txo qis los ntawm hydrogen kom tau cov hlau tungsten;

7. Tom qab carburizing cov tungsten hlau, peb tuaj yeem tau txais cov tungsten carbide, uas tuaj yeem tsim rau hauv cov khoom sib txawv tungsten carbide.

Yog tias koj txaus siab rau cov khoom lag luam tungsten carbide thiab xav paub ntau ntxiv thiab cov ntsiab lus, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa US MAIL hauv qab ntawm nplooj ntawv.