Tungsten alloy, tseem hu ua lub ntiajteb txawj nqus tshwj xeeb tungsten alloy, yog ob-theem alloy. Lub ntiajteb txawj nqus tshwj xeeb tungsten alloy tam sim no tau siv dav hauv ntau yam, xws li aviation, aerospace, riam phom thiab khoom siv, tsis yog hauv kev lag luam tub rog nkaus xwb, tab sis kuj siv hauv kev siv pej xeem. Tam sim no cia peb nkag siab txog cov txheej txheem tsim khoom ntawm lub ntiajteb txawj nqus tshwj xeeb tungsten alloy.
1. Kev tsim qauv tsim
Hauv cov ntsiab lus siab tshwj xeeb tungsten alloys, cov ntsiab lus tungsten feem ntau yog 85-98wt feem pua. Ntxiv rau W, cov ntsiab lus nrog cov ntsiab lus siab ntawm tungsten alloy hauv siab tshwj xeeb lub ntiajteb txawj nqus yog Ni thiab Fe (Cu, thiab lwm yam). Thaum npaj siab tshwj xeeb lub ntiajteb txawj nqus tungsten alloys, cov ntsiab lus lossis cov khoom sib txuas xws li Mo, Ta, re thiab LA kuj tseem yuav ntxiv.
2. Milling
Alloys nrog cov cuab yeej zoo heev tuaj yeem npaj tau los ntawm kev siv cov hmoov uas muaj purity siab, me me particle loj thiab zoo uniformity. Hauv kev ua cov hmoov nplej, nano hmoov yog qhov kev tshawb fawb hotspot, feem ntau suav nrog ob hom hauv qab no:
1) Txau kom qhuav
Txoj kev tshuaj tsuag kom qhuav yog thawj qhov kev xaiv los npaj cov tshuaj ntsev thawj nrog qee yam khoom. Cov tshuaj ntsev muaj xws li tungstate thiab hlau chloride. Cov tee me me yog tsim tom qab cov tshuaj atomized. Vim qhov ceev ceev evaporation ntawm hnyav thiab ceev deposition ntawm solute nyob rau hauv me me droplets, hmoov crystals nrog uniform tshuaj muaj pes tsawg leeg yuav tau.
2) Mechanical alloying
Mechanical alloying txoj kev yog xaiv ib feem ntawm tungsten alloy pib hmoov thiab hlau pob rau hauv lub pob zeb. Nyob rau hauv qhov kev txiav txim ntawm qhov sib npaug ceev ntawm cov hlau pob, cov hmoov ua kom txias vuam thiab ntau yam deformation, thiab thaum kawg tau txais cov hmoov sib xyaw nrog cov qauv zoo thiab cov khoom sib xws.
3. Kev tsim
Cov txheej txheem tungsten alloy txheej txheem yog kev tuag, thiab cov txheej txheem tshiab yog hmoov extrusion thiab hmoov txhaj tshuaj molding. Txij li ob txoj kev molding tuaj yeem sib xyaw nrog cov hmoov thiab tshuaj molding tus neeg sawv cev, lawv kuj muaj qhov zoo ntawm cov hmoov thiab cov tshuaj molding tus neeg sawv cev.
4. Sintering
Vim tias qhov loj me me ntawm cov hmoov hlau qub hauv cov khoom siv-theem sintering txoj kev, lub sijhawm sintering ntawm cov kua-theem sintering txoj kev yog ntev, thiab nws yog ib qho yooj yim ua rau lub cev qhuav dej thiab deformation. Raws li qhov zoo thiab qhov tsis zoo ntawm ob qho tib si, ob-kauj ruam sintering txheej txheem ntawm cov khoom-theem sintering ntxiv rau cov kua-theem sintering yog npaj. Vim tias qhov deformation ntawm ob-kauj ruam sintering yog me me, cov qauv ntawm tungsten alloy yog ntau yam, thiab cov khoom siv yuav zoo heev, yog li ob-kauj ruam sintering yog dav siv. Tsis tas li ntawd, qhov tsim tshiab microwave sintering thiab spark plasma sintering tshuab kuj tau nrov thiab siv nyob rau hauv xyoo tas los no.
