[CNPIM] Cov txheej txheem hlau txhaj tshuaj molding thiab lwm yam tshuab pwm

[CNPIM] Cov txheej txheem hlau txhaj tshuaj molding thiab lwm yam tshuab pwm

Cov txheej txheem teev nyob rau hauv tsab xov xwm no tsis yog tshiab. Yeej, nws muaj cov ntawv thov paub tab heev.

Kab lus no hais txog cov ntsiab lus ntawm Han Fenglin cov phau ntawv, tsom rau cov khoom lag luam zoo rau kev nug thiab kev siv ntawm cov phooj ywg xav tau.

Hlau txhaj tshuaj molding txheej txheem yog ib tug multidisciplinary technology thiab ib tug ntawm cov advanced precision molding txheej txheem rau hlau qhov chaw.

Cov txheej txheem hlau txhaj tshuaj molding tau maj mam lees paub, lees txais thiab muaj nuj nqis los ntawm tib neeg. Txhawm rau kom ua tiav cov txheej txheem ntau lawm, cov thev naus laus zis tshiab tshaj plaws hauv ntau qhov chaw tau nkag mus rau hauv MIM kev lag luam thiab tau ua kom muaj zog tshiab. Yog li ntawd, cov thev naus laus zis tshiab thiab cov txheej txheem tshiab ntawm cov txheej txheem hlau txhaj tshuaj molding kuj tau tshwm sim thiab siv rau kev tsim kho thiab tsim khoom.

Tom ntej no, cia peb ua ib qho khoom muag.

1. Hlau micro-txhaj tshuaj molding tshuab (μ-MIM)

Micro-mechanical lossis micro-electro-mechanical systems (MEMS) yog ib qho kev sib koom tes tshiab tsim nyob rau xyoo 1980s, thiab tau lees paub tias yog ib qho ntawm cov kev qhuab qhia tseem ceeb hauv lub xyoo pua 21st.

Kev ua tau zoo ntawm micromechanical lossis MEMS yog nyob ntawm kev nce qib ntawm micro-machining thev naus laus zis. Hlau micro-txhaj tshuaj molding tshuab yog txoj hauv kev zoo tshaj plaws rau kev tsim khoom loj ntawm high-precision thiab high-performance micro-hlau lossis ceramic qhov chaw.

Hlau micro-txhaj tshuaj molding tshuab yog hais txog cov txheej txheem thev naus laus zis uas siv cov txheej txheem MIM los tsim cov hlau lossis ceramic nrog micrometer loj lossis micrometer qauv. Nws feem ntau yog hais txog precision qhov chaw nrog qhov loj me dua 1 hli lossis hauv zos micrometer zoo qauv.

Tam sim no, 25 ~ 50 tuaj yeem npaj nrog cov hmoov zoo μ M tuab, cov ntsiab lus hauv zos tsawg dua 5 μ M. Qhov roughness yog 2 ~ 3 μ M ntawm cov hlau lossis cov khoom siv ceramic.

Qhov loj ntawm cov hlau txhaj tshuaj molding qhov chaw tau tsim mus rau ob qhov siab tshaj plaws. Micron-loj precision qhov chaw muaj peev xwm ua lag luam loj thiab kev loj hlob muaj peev xwm. Tus nqi ntxiv ntawm cov khoom me me no yog siab heev, xws li optical fiber hlau tes tsho, laser catheter, luam tawm Circuit Court micro laum, microelectronic actuator thiab kho hniav qhov chaw, thiab tus nqi yog 4000 ~ 20000 las ib kilogram.

Micro txhaj tshuaj molding cov khoom muaj ntau daim ntawv thov kev cia siab nyob rau hauv actuators, sensors, hnab tshos cov neeg siv khoom, riam phom, aerospace, hluav taws xob los ua ke cov cuab yeej, oxygen analyzers, cov ntxaij lim dej thiab cov cuab yeej kho mob thiab kev noj qab haus huv.

Lub ntsiab obstacles txwv txoj kev loj hlob ntawm micro txhaj molding tshuab yog kev tsim cov precision micro pwm, filling ntawm nqaim gaps thiab ua hauj lwm ntawm me me qhov chaw.

Cov pwm siv los tsim cov khoom siv high-precision micro-qhov no yog qhov tseeb ntau dua li cov pwm pwm, thiab ntau yam nyiaj txiag xav tau rau kev ua haujlwm zoo, xws li photolithography, electroforming, micro-cutting, micro-edm, thiab lwm yam. Cov teeb meem tuaj yeem daws tau zoo los ntawm kev siv LIGA (German phaj ua, electroforming thiab txhaj tshuaj molding peb lub npe) thiab lwm cov txheej txheem los tsim cov yas poob ua npuas ncauj pwm.

Muaj ob txoj hauv kev los tsim cov yas poob ua npuas ncauj pwm los ntawm LIGA txheej txheem:

Ib txheej txheem yog los pwm PMMA yas pwm tub ntxhais, ntxig rau PMMA yas pwm tub ntxhais rau hauv pwm pwm rau kev txhaj tshuaj molding ncaj qha, PMMA yas pwm core thiab MIM ib feem dawb paug yog cais los ntawm pwm pwm tag nrho, thiab MIM ib feem dawb paug yog tshuav nyob rau hauv cov yas pwm core rau direct degreasing thiab sintering, uas dhau los ua ib kauj ruam replication txheej txheem.

Lwm cov txheej txheem yog tso ib txheej ntawm cov hlau npib tsib xee rau saum npoo ntawm PMMA yas qhov chaw los ntawm cov txheej txheem electroforming, thiab tom qab ntawd tev PMMA yas los ntawm lub plhaub npib tsib xee, thiab tom qab ntawd ntxig lub plhaub npib tsib xee rau hauv cov pwm hlau ntawm pwm txheej txheej txheem los tsim cov txheej txheem. MIM part blank. Qhov no dhau los ua txheej txheem rov ua dua ob kauj ruam.

Lub precision ntawm cov khoom tsim los ntawm ib-kauj ruam replication txheej txheem yog siab, thiab cov teeb meem ntawm demoulding thiab tom qab ua hauj lwm ntawm qhov chaw yog daws, tab sis tus nqi yog siab; Lub precision ntawm qhov chaw tsim los ntawm ob-kauj ruam replication txheej txheem yog txo, uas yog haum rau loj ntau lawm, tab sis muaj teeb meem nyob rau hauv demoulding thiab tom qab ua hauj lwm ntawm qhov chaw.

2. Cov khoom siv sib xyaw ua ke ntawm kev txhaj tshuaj molding tshuab

Nws yog ib qho nyuaj rau cov khoom uas ua los ntawm ib qho tshuaj muaj pes tsawg leeg cov ntaub ntawv kom tau raws li cov kev cai tshwj xeeb ntawm niaj hnub tsim kev lag luam rau complex kev koom ua ke ntawm ib feem functions. Qhov sib txawv ntawm ib feem yog ua los ntawm cov ntaub ntawv sib txawv, thiab ua tau raws li qhov xav tau ntawm kev ua haujlwm sib txawv yog kev txhim kho ntawm kev tsim khoom niaj hnub.

[CMPIM] Innovativehlau txhaj moldingtxheej txheem thiab lwm yam pwm tshuab Multi-component khoom sib xyaw txhaj tshuaj molding tshuab

Ob-xim (ntau xim) txhaj tshuaj molding tshuab tau siv dav hauv kev lag luam yas tau nkag mus rau hauv cov hlau txhaj tshuaj molding, ua rau nws muaj peev xwm ua batch thiab kho tau zoo ntawm cov hlau lossis cov khoom siv ceramic.

Lub hauv paus ntsiab lus ntawm kev txhaj tshuaj molding tshuab yog tias lub tshuab txhaj tshuaj yog nruab nrog ob lossis ntau pawg ntawm cov thoob tib lub sijhawm, thiab cov ntaub ntawv txhaj tshuaj hauv txhua pawg ntawm cov thoob yog tib yam. Cov pwm ruaj khov ntawm ntau cov kab noj hniav tuaj yeem tig ib ncig ntawm cov ncej tig, thiab cov khoom siv sib txawv yog txhaj rau hauv cov kab noj hniav sib txawv ntawm txhua txoj haujlwm. Thawj qhov kev txhaj tshuaj yog sab laug ntawm sab hauv, thiab cov pwm qhib tom qab txias, tab sis nws tsis yog demoulded tam sim ntawd. Tom qab cov pwm ruaj khov yog tig mus rau ib lub kaum ntse ntse, cov pwm ruaj khov raug kaw, thiab tag nrho cov kab noj hniav nthuav tawm sab nraud txheeb ze rau thawj qhov kev txhaj tshuaj dawb, thiab tom qab ntawd qhov kev txhaj tshuaj thib ob ntawm cov khoom sib txawv yog nqa tawm. Txhua feem yog tsim los ntawm ntau yam kev txhaj tshuaj thiab thaum kawg ejected.

Kev taw qhia ntawm cov khoom siv sib xyaw ua ke ntawm cov khoom sib xyaw ua ke tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm thiab kev ua haujlwm ntawm ib qho, txuag cov khoom tseem ceeb thiab txo cov nqi.

Composite thev naus laus zis muaj cov ntawv thov dav dav hauv ntau qhov chaw, xws li steel-hardened carbide lossis ceramic txiav cov cuab yeej, nag lossis daus-hlau stainless-steel hlau-aluminium alloy nozzle, sib nqus thiab cov khoom siv hluav taws xob tsis sib nqus, thiab lwm yam.

Rau thawj thiab thib ob kab lus, thov mus saib cov lus qhia ntxaws ntxiv: [Technology] Tshiab hlau txhaj tshuaj molding tshuab: μ- Taw qhia rau MIM thiab 2C-MIM txheej txheem

3. Gas (kua) pab molding tshuab

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov pa roj (kua) pab molding yog txhaj ib qho ntawm cov khoom siv tshuaj molten (feem feem ntawm 50 feem pua ​​~ 80 feem pua) rau hauv pwm kab noj hniav, thiab tom qab ntawd txhaj cov pa roj los yog dej los ntawm cov yaj kom cov khoom hollow. . Cov khoom siv tshuaj molten nthuav dav thiab haum rau sab hauv phab ntsa ntawm cov pwm kab noj hniav. Txij li thaum lub hauv paus ntawm lub thicker ib feem ntawm cov khoom yog thaum kawg solidified, qhov no feem ntau yuav ua hollow..

[CMPIM] Schematic daim duab ntawm lub tshiab hlau txhaj tshuaj molding txheej txheem thiab lwm yam pwm technology gas-pab molding khoom

Vim tias qhov ntim hloov pauv nrog lub siab, uas ua rau cov pa roj ntau dua, cov dej ntws thiab tsim cov hollow phab ntsa tuab yog yooj yim rau kev tswj. Nrog rau cov pa roj (kua) lub cev pab tsim cov txheej txheem, kev tsim kev ywj pheej yog nce, thiab cov khoom nrog cov phab ntsa loj thickness sib txawv yog ib qho yooj yim rau kev tsim; Kev txhaj tshuaj siab tuaj yeem txo qis, thiab qhov kev faib tawm sab hauv ntawm cov khoom yog ntau yam sib xws; Cov khoom koom nrog hauv kev txo qis kev ntxhov siab, warpage, vau thiab nto zoo; Nws tuaj yeem txo lub sijhawm degreasing, txo cov khoom siv thiab txo qhov hnyav ntawm qhov chaw.

Cov pa roj (kua) pab molding tshuab tau ua tiav rau kev ua haujlwm ntawm lub taub hau golf, qhov rooj kov, khoom siv tes ua, thiab lwm yam, nrog cov txiaj ntsig zoo kawg.

4. Ua thiab sib dhos tshuab ntawm kev txhaj tshuaj dawb paug

Txawm hais tias lub zog ntawm kev txhaj tshuaj dawb paug ua ntej degreasing yog qis dua li ntawm cov hlau sintered, nws tseem muaj qee lub zog los ua tiav thiab txiav.

Kev siv thev naus laus zis ntawm kev ntxiv thiab rho tawm cov ntaub ntawv tuaj yeem siv los hloov qhov loj thiab cov duab ntawm qhov khoob. Kev txhaj tshuaj dawb paug ua ntej degreasing tuaj yeem ua tiav los ntawm kev txiav cov rooj vag, kev faib cov kab ua haujlwm, drilling, chamfering thiab lwm yam khoom tshem tawm.

Vim tias qhov khoob khoob yog mos, qhov hnav ntawm lub cuab yeej txo qis heev. Lub zog ntawm qhov khoob yog qhov tsis muaj zog thiab yooj yim rau kev puas tsuaj. Nws xav tau kev txiav ceev ceev thiab tus nqi qis qis kom tau raws li qhov kawg ntawm qhov machining raug.

Cov txheej txheem kev sib dhos ib txwm yog los txuas cov sintered qhov chaw, thiab nws kuj tseem ua tau los muab cov kev txhaj tshuaj dawb paug ua ntej degreasing. Tam sim no, muaj peb txoj hauv kev rau cov txheej txheem sib dhos: ua ntej, qhov pib molding dawb paug yog siv los ua ib qho ntxig rau qhov thib ob txhaj tshuaj molding; Qhov thib ob yog qhov sib xyaw molding ntawm ntau cov khoom siv; Thib peb, sib sau ua ke ib qho kev txhaj tshuaj dawb paug rau hauv tag nrho ua ntej degreasing.

Yog tias tag nrho cov khoom seem yog tsim los ntawm kev txhaj tshuaj molding ntawm cov ntaub ntawv txhaj tshuaj zoo tib yam, qhov sib txuam degrease sintering shrinkage cov cuab yeej tuaj yeem ua kom lawv cov kev sib xyaw ua ke zoo; Yog tias txhua qhov khoob yog txhaj los ntawm cov khoom siv sib txawv, yuav tsum ntsuas kom tsis txhob tawg thiab deformation.

Siv cov cuab yeej no tuaj yeem ua kom yooj yim rau cov qauv pwm thiab txo tus nqi pwm; Cov khoom uas muaj cov duab ntau dua thiab nyuaj rau kev ua tiav los ntawm kev siv tshuab tsoos; Tsim cov khoom sib xyaw nrog cov kev ua tau zoo sib txawv thiab cov kev xav tau ua haujlwm lossis txuag cov khoom tseem ceeb.

5. Kub khiav tshuab

Qhov kub khiav txhaj tshuaj pwm yog qhov tsis yog-khiav kev txhaj tshuaj pwm tiag tiag, thiab cov tshuab kub khiav yog ib qho kev siv tshuab siab heev hauv cov txheej txheem txhaj tshuaj.

Los ntawm cov qauv tsim, kev tsim khoom thiab kev tswj hwm thev naus laus zis, cov khoom siv tshuaj txhaj tshuaj nyob rau hauv tag nrho cov dej ntws yog ib txwm khaws cia rau hauv lub xeev molten, tsis tsim cov dej ntws channel condensate, salivation, thiab overheating, sib cais lossis degradation ntawm cov khoom txhaj tshuaj.

Cov txheej txheem kub khiav yog tsim los ntawm lub ntsiab khiav nozzle, lub phaj khiav, lub nozzle, cua sov thiab ntsuas kub ntsuas cov ntsiab lus, installation thiab fastening qhov chaw.

[CMPIM] Cov txheej txheem hlau txhaj tshuaj molding thiab lwm yam tshuab pwm - kub khiav qauv

Vim muaj kev nyuaj siab, tag nrho cov kub khiav yog feem ntau tsim thiab tsim los ntawm cov tuam txhab kev tshaj lij. Ib qho ua tiav ntawm cov txheej txheem kub khiav pwm yog sib koom ua ke tsim thiab tsim los ntawm kev paub txog kev txhaj tshuaj pwm kev lag luam thiab cov tuam txhab kub khiav cov cuab yeej siv los xyuas kom meej kev txhaj tshuaj molding.

Cov qauv pwm ntawm qhov kub khiav qhov system yog qhov nyuaj thiab tus nqi siab, uas yog tsim rau kev tsim khoom loj:

-Txoj kev txhaj tshuaj tag nrho yog yooj yim dua kom paub txog kev tswj tsis siv neeg los ntawm kev siv lub tshuab kub khiav tsis muaj kev khiav rau cov txheej txheem demoulding;

-Tsis muaj kev sib xyaw ntawm cov khoom siv rov ua dua tshiab hauv cov neeg khiav dej num, uas txhim kho kev ruaj ntseg ntawm cov txheej txheem ntau lawm thiab cov khoom zoo sib xws ntawm cov khoom tsim tawm ntau;

-Thaum lub siab poob hauv cov dej ntws tau txo qis, qhov kev txhaj tshuaj siab tuaj yeem txo qis, uas txo qhov kev nyiam ntawm kev sib cais thiab degradation ntawm cov khoom txhaj tshuaj, txo qhov seem ntawm cov khoom, thiab txo qhov deformation;

-Lub sijhawm tuav tau ntev dua thiab ua haujlwm tau zoo, txo qis qhov shrinkage ntawm qhov kev txhaj tshuaj, thiab qhov ntom ntawm txhua qhov sib txawv ntau dua;

-Nws tuaj yeem tsim cov khoom lag luam nrog qhov loj dua, thinner phab ntsa thickness, ntau cov duab thiab ntau dua precision;

- Ua ke nrog lub rooj vag latent uas tsis tuaj yeem siv rau hauv MIM pwm, kev tsim khoom tuaj yeem txhim kho los ntawm kev txo cov kev ua haujlwm ntawm lub qhov rooj dawb paug;

-Kev txuag hluav taws xob thiab kev tsim khoom loj tuaj yeem txo cov nqi.

6. Cov cuab yeej ceev ceev

Tus nqi tsim khoom ntawm cov pwm ntau lawm feem ntau yog siab. Feem ntau, nws yog ib qho tsim nyog yuav tsum tau ua cov pwm sim kom pom cov teeb meem uas yuav ntsib thaum lub sij hawm tag nrho cov txheej txheem ntawm kev txheeb xyuas thiab kev tsim khoom, thiab cov pwm zaum kawg yuav tsum tau hloov kho. Txhawm rau hloov mus rau qhov xwm txheej no, ntau cov txheej txheem pwm sai lossis muag muag tau tshwm sim los tsim cov pwm sim uas tuaj yeem ua tau raws li qhov kev sim ntau lawm ntawm ntau pua qhov chaw.

Tam sim no, aluminium alloy, particle reinforced epoxy resin, beryllium tooj liab, qis carbon steel, stainless hlau thiab cobalt alloy tau siv los tsim cov hlau mos txhaj tshuaj pwm. Vim nws txoj kev yooj yim, zinc, aluminium thiab bismuth alloys qee zaus siv los tsim cov pwm kuaj thiab cov qauv qauv.

Txawm li cas los xij, vim qhov yooj yim khawb thiab kev puas tsuaj, qhov kawg pwm tsim yuav siv cov ntaub ntawv nyuaj.

Nws yog ib qho tshiab pwm thev naus laus zis los ua MIM yas txhaj tshuaj pwm nrog kev pab cuam lub neej tsawg raws li cov txheej txheem ntawm silicone roj hmab pwm. Ncuav cov yas molten nyob ib ncig ntawm kab noj hniav ntawm niam pwm. Tom qab solidification thiab hardening, txiav cov yas thiab tshem tawm cov niam pwm. Nias rau hauv qhov txwv pwm puag, xws li yas pwm tuaj yeem siv los tiv thaiv ntau pua qhov kev ntsuas qis qis.

Laser ceev prototyping tshuab yog ib txoj kev yooj yim heev ntawm pwm lossis qauv tsim. Nws siv laser scanning ib feem tsub zuj zuj ntawm cov yas los yog hlau hmoov los ncaj qha mus tsim pwm kab noj hniav. Lwm cov txheej txheem tsim pwm ntawm laser sai prototyping thev naus laus zis yog siv cov khoom sib dhos lossis daim ntawv qauv los tsim cov pwm kab noj hniav los ntawm precision casting lossis electroforming.

Qhov saum npoo ntawm cov pwm tsim los ntawm cov txheej txheem no yog qhov ntxhib thiab qhov tseeb yog qhov tsawg, uas tsis tuaj yeem ua tau raws li qhov xav tau nruj ntawm cov pwm tsim.

Cov kab noj hniav pwm lossis nws cov khoom siv hauv cov khoom loj heev yog yooj yim hnav. Cov cuab yeej siv tshuab nrawm nrawm yuav yog cov cuab yeej siv tau zoo heev.

7. Fusible core forming technology

Rau qhov chaw nrog cov tub ntxhais nyuaj lossis cov qauv tshwj xeeb uas nyuaj rau demoulded los ntawm cov txheej txheem, fusible core forming technology tuaj yeem daws qhov teeb meem molding ntawm cov khoom zoo li no.

Lub tswv yim tseem ceeb ntawm fusible core molding tshuab yog ua kom cov tub ntxhais cov qauv ntawm qhov chaw uas nyuaj los yog nyuaj rau demoulded rau hauv cov ntxig nrog resin, ntawv, qis melting point hlau thiab lwm yam ntaub ntawv. Tom qab molding thiab demoulding, qhov ntxig tseem nyob hauv qhov txhaj tshuaj dawb paug thiab tsis tuaj yeem tawm tam sim ntawd. Tom qab ntawd cov ntawv ntxig sab laug hauv qhov kev txhaj tshuaj dawb raug tshem tawm ua ntej sintering los ntawm melting, cracking, solvent dissolution thiab lwm txoj kev.

Siv txoj kev no, nws yog ib qho yooj yim mus nqa tawm loj ntau lawm ntawm qhov chaw uas nyuaj los yog tsis yooj yim sua kom ncaj qha tsim los ntawm cov pa hlau txhaj molding, xws li ib puag ncig puab concave, zoo xov thiab me me xov.