Hlau hmoov Cov Khoom Siv Rau 3d Printing

Hlau 3D luam ntawv yog 3D luam ntawv thev naus laus zis uas siv cov hmoov hlau ncaj qha luam ntawv hlau, tseem hu ua hlau hmoov sintering (SLM). Ntxiv nrog rau cov yas zoo, 3D luam ntawv hlau hmoov yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm cov hmoov zoo hmoov me me thiab siab particle loj faib. Nqaim, siab sphericity, zoo fluidity thiab siab bulk ntom yuav tsum. Tam sim no, cov hmoov hlau siv nyob rau hauv feem ntau 3D tshuab luam ntawv muaj xws li stainless hlau, txhuas alloys, cobalt-chromium alloys, tooj liab alloys, titanium alloys thiab nickel alloys. Hlau-raws li alloys yog engineering Cov khoom siv hlau tseem ceeb tshaj plaws thiab feem ntau siv hauv kev siv tshuab feem ntau yog siv los ua cov txheej txheem nyuaj, thiab siv dav hauv aerospace, tsheb, nkoj tsim, tshuab tsim thiab lwm yam lag luam.

Hom hmoov hlau thiab cov txheej txheem luam ntawv 3D siv los txiav txim siab cov khoom ntawm cov khoom kawg

● Stainless hlau hmoov

Cov ntaub ntawv hlau luam ntawv pheej yig heev, tus nqi tsim nyog, zoo corrosion kuj, siab zog, tuaj yeem ua tau sai thiab ua tau zoo tsim cov khoom me me ntawm cov khoom lag luam.

● Aluminium alloy hmoov

Tam sim no, aluminium alloys siv hlau 3D luam ntawv feem ntau suav nrog txhuas silicon AlSi12 thiab AlSi10Mg. Aluminium silicon 12 yog ib lub teeb yuag ntxiv siv los tsim cov hmoov hlau nrog cov khoom zoo thermal. Kev sib xyaw ntawm silicon thiab magnesium ua rau aluminium alloys muaj zog dua. thiab nruj, ua rau nws haum rau nyias-walled thiab complex geometries, tshwj xeeb tshaj yog nyob rau hauv daim ntaub ntawv nrog zoo thermal zog thiab tsis muaj hnyav. Aluminium alloys yog cov chav kawm uas siv ntau tshaj plaws ntawm cov khoom siv tsis muaj hlau nyob hauv siab zog, ze rau lossis tshaj cov hlau zoo, thiab cov yas zoo. Kev tshawb fawb qhia tau hais tias txhuas alloys tau ua tiav cov khoom siv tsis ntev, thiab piv rau cov txheej txheem ib txwm muaj los ntawm thaj chaw muaj peev xwm ua tau zoo li ntawm 22 feem pua, tab sis tus nqi tuaj yeem txo los ntawm 30 feem pua.

● Cobalt-chromium alloy hmoov

Vim nws zoo heev hnav tsis kam thiab corrosion kuj, cobalt-chromium alloy hmoov rau hlau 3D luam ntawv feem ntau yog siv los luam tawm ntau yam pob qij txha thiab orthopedic implants, thiab nws kuj yog siv nyob rau hauv kev kho hniav.

● Copper alloy hmoov

Nrog zoo thermal thiab hluav taws xob conductivity, tooj liab nrog zoo thermal conductivity nyob rau hauv thermal tswj daim ntaub ntawv yuav tsum tau ua ke nrog tsim kev ywj pheej los tsim complex sab hauv thiab conformal cua txias raws.

● Titanium alloy hmoov

Nws yog dav siv nyob rau hauv aerospace teb, siv qhov zoo ntawm 3D luam ntawv los pab optimize cov khoom tsim, xws li hloov lub qub khoom lub cev nrog ib tug complex thiab tsim nyog qauv, yog li ntawd cov khoom tiav lawm muaj tsawg yuag thiab zoo mechanical zog. Qhov no tuaj yeem tsis tsuas yog txo cov nqi xwb tab sis kuj sib zog ua haujlwm ntawm txhua yam tuaj yeem ua tiav.

● Nickel alloy hmoov

Cov oxidation tsis kam thiab corrosion kuj ntawm npib tsib xee alloy ua rau nws haum rau qhov hnyav ib puag ncig ntawm qhov kub thiab txias. Thaum cov nickel alloy yog rhuab, ib txheej tuab thiab ruaj khov oxide yuav passivated rau saum npoo ntawm cov hlau los tiv thaiv sab hauv ntawm cov hlau los ntawm corrosion. Zoo mechanical zog yog khaws cia nyob rau hauv ntau qhov kub thiab txias.

Cov ntaub ntawv hmoov siv li cas rau 3D luam ntawv

Lub zog hluav taws xob laser beam, tswj los ntawm 3D qauv cov ntaub ntawv, yog siv rau hauv zos yaj cov hlau matrix, thaum sintering solidifies cov hmoov hlau cov ntaub ntawv thiab cia li txheej-los ntawm-txheej stacking los tsim cov khoom ntom ntom geometric khoom.

Yuav Ua Li Cas 3D Printing Hlau Hmoov

Kev tsim cov hmoov hlau yog ib qho tseem ceeb ntawm cov hmoov metallurgy. Cov txheej txheem sib txawv siv los npaj cov hmoov hlau xws li txo qis, electrolysis, carbonyl decomposition, sib tsoo, thiab atomization.

Plaub txoj kev siv dav tshaj plaws los tsim cov hmoov hlau yog cov khoom siv hauv lub xeev txo, electrolysis, tshuaj, thiab atomization.

Feem ntau cov tuam ntxhab siv electrolysis thiab txo txoj hauv kev los tsim cov hmoov hlau hlau. Tab sis lawv tsis haum rau kev tsim cov hmoov hlau alloy. Txawm li cas los xij, txoj kev atomization nyhav dhau qhov kev txwv no, yog li cov tuam txhab siv nws rau kev tsim cov hmoov hlau alloy.

Electrolysis yog lwm txoj kev siv los tsim cov hmoov hlau. Los ntawm kev xaiv qhov tsim nyog electrolyte muaj pes tsawg leeg, qhov kub thiab txias, concentration thiab qhov ceev tam sim no, cov hlau sib txawv tuaj yeem muab tso rau hauv daim txhuam cev lossis hmoov. Qhov no tuaj yeem ua raws li kev ntxuav, ziab, txo, Annealed thiab crushed. Txoj kev no ua rau cov hmoov hlau ntawm purity siab heev. Nws yog ib qho yooj yim siv rau cov khoom siv tooj liab zoo heev vim nws txoj kev xav tau siab zog.

Atomization txoj kev hais txog ib txoj kev ntawm crushing molten hlau mus rau hauv hais nrog ib tug loj ntawm tsawg tshaj li 150 μm los ntawm cov neeg kho tshuab txoj kev. Raws li txoj kev crushing molten hlau, atomization txoj kev muaj xws li ob-kwj atomization, centrifugal atomization, ultrasonic atomization, Nqus atomization, thiab lwm yam. Ntawm lawv, cov dej vapor atomization txoj kev muaj qhov zoo ntawm cov khoom siv yooj yim thiab cov txheej txheem, kev siv hluav taws xob tsawg thiab cov khoom loj loj, thiab tau dhau los ua cov hmoov hlau loj. Muaj txoj kev tsim khoom.

3D luam ntawv kev ua tau zoo yuav tsum muaj 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 txhob muaj cov khoom siv ceramic hauv cov hmoov. Tsis tas li ntawd, cov ntsiab lus ntawm cov pa 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 thaj chaw loj tshwj xeeb 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 pa oxygen cov ntsiab lus 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 yog txuam nrog 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), thiab 53-105μm (cov hmoov ntxhib). Qhov 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 sib txawv, cov tshuab luam ntawv siv laser ua lub zog tsim nyog rau kev siv 15-53μm hmoov raws li consumables vim lawv qhov zoo tsom qhov chaw thiab yooj yim yaj. ntawm hmoov zoo. Cov txheej txheem hmoov yog txheej txheej hmoov txheej; Lub tshuab luam ntawv hmoov sib kis nrog lub teeb hluav taws xob raws li lub zog qhov chaw muaj qhov ua kom pom tseeb me ntsis, uas yog qhov tsim nyog rau melting coarse hmoov, thiab yog tsim rau kev siv cov hmoov coarse ntawm 53-105 μm; rau coaxial hmoov pub hom tshuab luam ntawv, qhov loj me ntawm 105-150 μm tuaj yeem siv cov hmoov ua khoom siv.

4. Hmoov morphology

Cov hmoov morphology yog ze ze rau txoj kev npaj hmoov. Feem ntau, thaum cov roj hlau los yog cov kua molten hloov mus rau hauv cov hmoov, cov duab ntawm cov hmoov hmoov zoo li 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 tau asphericity ntawm ntau tshaj 98 feem pua ​​​​kom cov hmoov sib kis thiab cov hmoov noj tau yooj yim dua thaum luam ntawv.

Qhov tseem ceeb ntawm 3D Hlau Powder Printing

Cov hmoov hlau ua rau 3D luam ntawv sai dua thiab tso cai rau kev tsim qauv sai. Cov neeg tsim khoom kuj tuaj yeem hloov kho cov qauv tsim tau zoo dua. Txoj kev no kuj raug nqi zoo vim cov hlau 3D tshuab luam ntawv tsuas yog siv cov khoom siv los ua qhov xav tau. Ua rau kev tsim cov khoom siv tshuab ua kom yooj yim thiab ua rau cov khoom siv "tsis tuaj yeem" tshuab.