Cov txheej txheem tshiab hlau tsim: Taw qhia rau MIM (Hlau hmoov Txhaj Moulding) txheej txheem

Cov txheej txheem tshiab hlau tsim: Taw qhia rau MIM (Hlau hmoov Txhaj Molding) txheej txheem

Editor's Note: Raws li qhov xwm txheej tam sim no ntawm MIM hauv Suav teb, qee cov ntaub ntawv tau muab ntxiv.

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MIM yog qhov ze ntawm cov txheej txheem hlau hlau

MIM (hlau txhaj tshuaj molding) yog lub ntsiab lus ntawm kev txhaj tshuaj hlau. Ib txoj kev molding uas txhaj cov yas sib xyaw ntawm cov hmoov hlau thiab nws cov ntawv khi rau hauv cov qauv. Nws suav nrog kev sib xyaw cov hmoov hlau xaiv nrog cov nplaum nplaum, tom qab ntawd granulating qhov sib tov, txhaj cov matrix uas xav tau, thiab tom qab ntawd sintering ntawm qhov kub siab kom tau txais cov hlau muaj zog.

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MIM cov txheej txheem

Cov txheej txheem MIM muab cov kev hloov pauv ntawm kev txhaj tshuaj molding tsim nrog lub zog siab thiab kev ntseeg siab ntawm cov hlau precision kom ua tiav cov kev daws teeb meem qis rau cov khoom siv geometric nyuaj heev. Cov txheej txheem MIM tau muab faib ua plaub yam kev ua haujlwm tshwj xeeb (sib tov, molding, degreasing, thiab sintering) kom ua tiav cov khoom tsim, thiab txiav txim siab seb puas yuav tsum tau siv lub tshuab ntxiv lossis kev kho deg raws li cov yam ntxwv ntawm cov khoom.

sib tov

Cov hmoov hlau zoo yog tov nrog thermoplastic thiab paraffin adhesives nyob rau hauv meej proportions. Cov txheej txheem sib tov yog nqa tawm nyob rau hauv ib qho tshwj xeeb sib tov khoom, rhuab mus rau ib tug tej yam kub kom yaj cov nplaum. Feem ntau, kev sib xyaw tshuab yog siv kom txog thaum cov hmoov hlau hmoov sib xyaw ua ke nrog cov nplaum thiab txias kom tsim tau cov duab granular (hu ua raw khoom) uas tuaj yeem txhaj rau hauv pwm kab noj hniav.

CNPIM Faj seeb: Kev sib xyaw yog txheej txheem tseem ceeb hauv MIM txheej txheem. Tam sim no, muaj ntau lub tshuab sib xyaw nrog cov khoom sib txawv, uas yuav tsum tau muaj ntau txoj kev degreasing kom tshem tawm. Feem ntau siv siv quav ciab thiab yas hauv paus sib haum rau thermal thiab catalytic degreasing, feem.

tsim

Cov cuab yeej siv thiab thev naus laus zis ntawm kev txhaj tshuaj molding zoo ib yam li cov kev txhaj tshuaj molding. Granular raw cov ntaub ntawv yog pub rau hauv lub tshuab cua sov thiab txhaj rau hauv cov pwm kab noj hniav nyob rau hauv siab. Cov txheej txheem no yog tsim los ntawm qhov txias ntawm qhov ntsuab thiab demolding nws. Tsuas yog thaum cov nplaum yog yaj (tag nrho fused nrog cov hmoov hlau) ntawm qhov kub txog 200 ° C tuaj yeem ua tiav tag nrho cov txheej txheem. Cov pwm tuaj yeem tsim kom muaj ntau qhov kab noj hniav los txhim kho cov khoom tsim tau. Lub shrinkage generated thaum lub sij hawm sintering txheej txheem ntawm hlau qhov chaw yuav tsum tau txiav txim siab nyob rau hauv lub tsim ntawm pwm kab noj hniav qhov ntev. Lub shrinkage hloov rau txhua yam khoom yog raug thiab paub.

Degrease

Degreasing yog txheej txheem ntawm tshem cov nplaum los ntawm qhov molded. Cov txheej txheem no feem ntau ua tiav hauv ob peb kauj ruam. Feem ntau ntawm cov nplaum raug tshem tawm ua ntej sintering, thiab qhov seem ntxiv tuaj yeem txhawb nqa cov khoom nkag mus rau hauv qhov cub sintering.

Degreasing tuaj yeem ua tiav los ntawm ntau txoj hauv kev, feem ntau yog siv los ua kuab tshuaj extraction. Cov degreased Cheebtsam yog semi permeable, thiab cov residual nplaum yog yooj yim volatilized thaum sintering.

CNPIM Faj seeb: Tam sim no, txoj kev siv degreasing feem ntau yog Catalyst catalytic degreasing txoj kev pib los ntawm BASF, uas yuav tsum tau siv lub siab catalytic degreasing rauv. (Yog xav paub ntxiv, thov mus saib ntawm Zhongwei Precision official lub vev xaib.)

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