Hmoov metallurgy tungsten feem ntau muaj cov nplej zoo, nws qhov khoob yog feem ntau xaiv los ntawm kev kub siab forging thiab dov txoj kev, qhov kub yog feem ntau tswj ntawm 1500 ~ 1600 ℃.Tom qab qhov khoob, lub tungsten tuaj yeem txuas ntxiv dov, forged lossis spun.Lub siab machining feem ntau yog ua raws li qhov ntsuas kub ntawm recrystallization, vim hais tias cov ciam teb ntawm cov recrystallized tungsten yog nkig, uas txwv kev ua haujlwm.Yog li ntawd, nrog rau qhov nce ntawm tag nrho cov nqi ntawm tungsten, qhov deformation kub txo qhov sib npaug.
Tungsten phaj dov tuaj yeem muab faib ua kub dov, sov dov thiab txias dov.Vim yog qhov loj ntawm deformation tsis kam ntawm tungsten, cov rollers tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm dov tungsten daim hlau, thaum rollers ua los ntawm cov khoom tshwj xeeb yuav tsum tau siv.Nyob rau hauv cov txheej txheem dov, rollers yuav tsum tau preheated, thiab preheating kub yog 100 ~ 350 ℃ raws li qhov sib txawv dov.Cov khoob khoob tuaj yeem ua tau tsuas yog thaum qhov sib txheeb qhov ntom ntom (qhov sib piv ntawm qhov tseeb qhov ceev rau qhov theoretical ntom) siab dua 90%, thiab muaj kev ua haujlwm zoo ntawm qhov ceev ntawm 92 ~ 94%.Lub tungsten slab kub yog 1,350 ~ 1,500 ℃ nyob rau hauv cov txheej txheem kub dov;Yog hais tias cov txheej txheem deformation tsis raug xaiv tsis raug, cov blanks yuav raug txheej.Qhov pib kub ntawm qhov sov dov yog 1,200 ℃;8mm-tuab kub dov daim hlau tuaj yeem ncav cuag lub thickness ntawm 0.5mm los ntawm sov dov.Tungsten daim hlau yog siab deformation tsis kam, thiab lub cev ntawm cov menyuam tuaj yeem khoov thiab deformed nyob rau hauv cov txheej txheem dov, yog li cov phaj yuav tsim cov tuab tsis sib xws raws qhov dav kev taw qhia, thiab tej zaum yuav tawg vim tsis yog-uniform deformation ntawm tag nrho cov. cov khoom nyob rau hauv cov menyuam pauv los yog dov zeb txauv txheej txheem.Lub brittle-ductile hloov kub ntawm 0.5mm-thick daim hlau yog chav tsev kub los yog siab tshaj chav tsev kub;Nrog brittleness, cov nplooj ntawv yuav tsum tau dov rau hauv 0.2 hli-thick nplooj ntawv ntawm qhov kub ntawm 200 ~ 500 ℃.Nyob rau tom qab lub sij hawm ntawm dov, tungsten nplooj yog nyias thiab ntev.Txhawm rau kom tsis txhob muaj cua sov ntawm daim hlau, graphite lossis molybdenum disulphide feem ntau yog coated, uas tsis yog tsuas yog muaj txiaj ntsig zoo rau cov cua sov ntawm daim hlau tab sis kuj muaj cov nyhuv lubricating hauv cov txheej txheem machining.
Post lub sij hawm: Jan-15-2023