3D luam ntawv kev ua tau zoo xav tau rau cov hmoov hlau
1. Kev ntshiab
Ceramic inclusions yuav txo qhov kev ua tau zoo ntawm qhov kawg, thiab cov kev suav nrog no feem ntau muaj lub siab melting point thiab nyuaj rau sinter, yog li yuav tsum tsis muaj ceramic inclusions hauv cov hmoov. Tsis tas li ntawd, cov ntsiab lus oxygen thiab nitrogen kuj yuav tsum tau tswj nruj me ntsis .Tam sim no, cov hmoov npaj tshuab rau hlau 3D luam ntawv feem ntau yog raws li txoj kev atomization. Cov hmoov muaj qhov tshwj xeeb ntawm thaj chaw loj thiab yooj yim rau oxidize. Hauv daim ntawv thov tshwj xeeb xws li aerospace, cov neeg siv khoom muaj kev txwv nruj dua rau qhov ntsuas no, xws li superalloys. Cov ntsiab lus oxygen ntawm hmoov yog 0.006 feem pua -0.018 feem pua, cov ntsiab lus oxygen ntawm titanium alloy hmoov yog 0.007 feem pua -0.013 feem pua , thiab cov ntsiab lus oxygen ntawm stainless hlau hmoov yog 0.010 feem pua -0.025 feem pua .
2. Hmoov fluidity thiab bulk ntom
Hmoov fluidity ncaj qha cuam tshuam rau qhov sib xws ntawm cov hmoov sib kis thaum lub sijhawm luam ntawv thiab kev ruaj ntseg ntawm cov hmoov pub mis. Lub fluidity muaj feem xyuam rau cov hmoov morphology, particle loj tis thiab bulk ntom. Qhov me me ntawm cov hmoov zoo, qhov zoo dua nws cov fluidity; qhov particle ntom tseem tsis hloov, qhov txheeb ze ntom ntom, thiab cov hmoov fluidity nce. Tsis tas li ntawd, qhov adsorption ntawm dej, roj, thiab lwm yam nyob rau ntawm particle nto yuav txo cov hmoov fluidity.
3. hmoov particle loj faib
Cov khoom sib txawv 3D luam ntawv thiab cov txheej txheem tsim muaj qhov sib txawv rau cov hmoov particle loj tis. Tam sim no, cov hmoov particle loj feem ntau siv hauv hlau 3D luam ntawv yog 15-53μm (cov hmoov zoo), 53-105μm (cov hmoov coarse). Kev xaiv ntawm cov hmoov hlau hmoov me me rau 3D luam ntawv yog feem ntau Raws li cov tshuab luam ntawv hlau nrog cov khoom siv hluav taws xob sib txawv, cov tshuab luam ntawv siv laser raws li cov khoom siv hluav taws xob tsim nyog rau kev siv 15-53μm hmoov li consumables vim lawv zoo focusing chaw thiab yooj yim rau yaj hmoov zoo, thiab cov hmoov muab txheej txheem yog txheej txheej hmoov txheej; Rau cov tshuab luam ntawv hmoov sib kis nrog cov kab hluav taws xob raws li lub zog qhov chaw, qhov chaw tsom yog me ntsis thicker, uas yog tsim nyog rau melting coarse hmoov, thiab nws yog tsim nyog los siv coarse hmoov ntawm 53-105μm; rau cov tshuab luam ntawv coaxial hmoov pub, qhov loj me ntawm 105-150μm tuaj yeem siv cov hmoov ua khoom siv.
4. Hmoov morphology
Cov hmoov morphology yog ze ze rau txoj kev npaj ntawm cov hmoov. Feem ntau, thaum cov hlau gaseous los yog molten kua yog hloov mus rau hauv cov hmoov, cov duab ntawm cov hmoov feem ntau yuav spherical. Feem ntau ntawm cov hmoov npaj los ntawm txoj kev yog dendritic. Feem ntau hais lus, qhov siab dua qhov sphericity, qhov zoo dua qhov fluidity ntawm cov hmoov hmoov. Lub 3D luam ntawv hlau hmoov yuav tsum muaj ib tug sphericity ntawm ntau tshaj 98 feem pua, kom nws yooj yim rau kis thiab pub cov hmoov thaum lub sij hawm luam ntawv. .
