TV Yas Tsev Pwm

Raws li lub hauv paus tseem ceeb ntawm tag nrho TV teeb, TV vaj tse tsis tsuas yog tiv thaiv precision sab hauv xws li Circuit Court boards thiab cov ntxaij vab tshaus, tab sis kuj ncaj qha txiav txim siab cov khoom zoo li, kev ruaj ntseg, thiab cov neeg siv kev paub. Lub tsev zoo hauv TV yog nyob ntawm kev sib koom ua ke ntawm kev tsim pwm, kev tsim khoom, thiab kev txhaj tshuaj molding tshuab- pwm tsim yog lub hauv paus hauv paus, kev tsim precision yog qhov zoo hauv paus, thiab kev ua kom zoo tshaj plaws ua kom muaj ntau lawm. Cov kev sib txuas ntawm peb txoj kev sib txuas thiab sib koom ua ke txiav txim siab qhov kawg ntawm cov vaj tsev zoo thiab cov khoom lag luam kev sib tw. Daim ntawv no tau txheeb xyuas tag nrho cov txheej txheem kev daws teeb meem rau TV vaj tsev pwm nyob ib ncig ntawm peb qhov tseem ceeb.

 

I.Mould Tsim: Daim Ntawv Qhia meej meej rau Kev Tswj Xyuas Qhov Chaw

(1) Cov khoom siv hloov kho thiab Shrinkage tswj

Cov ntaub ntawv vaj tsev:Cov ntaub ntawv tseem ceeb yogABS thiab PC / ABS alloy, sib npaug toughness, rigidity, ua fluidity, thiab tus nqi. Cov phab ntsa nyias lossis cov qauv zoo nkauj tuaj yeem siv HIPS lossis nplaim hluav taws hloov kho ABS kom ua tau raws li kev tiv thaiv hluav taws thiab lub teeb yuag.

Pwm steel:Core kab noj hniav nyiam 718H, S136 (rau daim iav / siab polishing xav tau), thiab 2738 (rau kev pom dav); pwm puag siv tus qauv P20 los xyuas kom meej hnav tsis kam thiab thermal stability. Cov khoom siv shrinkage tus nqi (ib txwm 0.5% -0.7% rau ABS) yuav tsum raug xam los ntawm CAE simulation, nrog tsim nyog shrinkage nyiaj tshwj xeeb kom tsis txhob muaj qhov sib txawv ntawm qhov sib txawv, cov cim dab dej, thiab deformation tom qab molding.

 

(2) Kev ua kom zoo ntawm cov ntsiab lus tseem ceeb

1.Parting nto:nruj me ntsis kom tsis txhob Class A zoo li qhov chaw, tso rau ntawm qhov tsis pom cov npoo, thiab tswj cov kab sib cais tsawg dua lossis sib npaug li 0.02 hli kom tiv thaiv flash thiab burrs thaum ua kom pom tseeb thiab qhib / kaw.

 

2. Kub khiav system:Txais cov ntsiab lus submarine / taw tes rooj vag sib npaug sib npaug raws li lub tsev loj thiab cov duab kom tsis txhob muaj cov cim sib txuas thiab cov cim ntws. Sequential valve kub khiavraug pom zoo rau cov vaj tsev loj kom ua tiav cov kauj ruam los ntawm kauj ruam uniform melt filling.

 

3. Cua txias system:Conformal waterway + zonal kub tswj; dej channel spacing 40-50 mm, nrug ntawm kab noj hniav nto 15-20 mm. CAE simulation ua kom cov cua txias zoo ib yam thoob plaws txhua qhov chaw kom txwv kev sib ntaus sib tua.

 

4. Tshem tawm thiab tso pa tawm: Ua ke ejector pins + ejector daim hlau kom tsis txhob muaj cov cim ejector thiab whitening. Venting grooves nrog qhov tob 0.01-0.02 hli, muab tso rau ntawm qhov kawg ntawm cov yaj thiab cov fab tuag kom tsis txhob muaj roj hlawv thiab ua npuas tsis xws luag.

 

5.Draft lub kaum sab xis thiab phab ntsa thickness: Draft lub kaum sab xis Ntau dua los yog sib npaug rau 1℃rau qhov chaw pom, Ntau dua lossis sib npaug li 0.5℃rau sab hauv. Uniform phab ntsa thickness 2.0-2.5 hli; rib cag thickness Tsawg dua los yog sib npaug li 0.7 npaug ntawm lub ntsiab phab ntsa tuab kom tsis txhob muaj cov cim dab dej thiab kev ntxhov siab.

 

(3) CAE Aided Verification

Mould flow analysis ntawm software xws li Moldflow yog qhov yuav tsum tau ua hauv theem tsim los simulate filling, packing, thiab txias txheej txheem. Nws optimizes lub rooj vag txoj hauj lwm, khiav qhov luaj li cas, thiab txias layout, thiab txheeb xyuas tej yam tsis xws luag xws li weld kab, tsis txaus filling, thiab warpage ua ntej.

 

 

II.Precision Manufacturing: Paub qhov tseeb los ntawm kos rau qhov chaw

 

1.Cov cuab yeej siv thiab thev naus laus zis:Txais 5 axis CNC milling, EDM, thiab qeeb hlau txiav los tswj kab noj hniav qhov ntev ntev nyob rau hauv ± 0.01-± 0.02 hli. Pwm core deg kho yog xaiv raws li xav tau: daim iav polishing (Ra Tsawg dua lossis sib npaug ntawm 0.02 μm rau cov tsev siab gloss), tshuaj pleev xim (MT11-13 rau matte zoo nkauj).

2.Kev sib dhos thiab kev sim molding:Qhia pins thiab bushes siv H7 / g6 haum los xyuas kom meej qhib / kaw. Ua ntau yam kev sim moldings, maj mam kho cov kev txhaj tshuaj (kub, siab, ceev, lub sij hawm txias), daws qhov teeb meem xws li flash, dab dej cim, thiab xim sib txawv hauv kev sim ntau lawm, thiab ua tiav cov txheej txheem zoo.

3.Kev soj ntsuam zoo:Tag nrho- kev tshuaj xyuas qhov loj los ntawm peb- kev sib koom tes ntsuas tshuab, kuaj pwm hardness, thiab kev ntsuas kev sib khi hauv dej tau ua kom ntseeg tau tias txhua qhov ntsuas tseem ceeb ua tau raws li tus qauv tsim.

 

 

III.Injection Molding Process Optimization: Kev txhim kho ruaj khov hauv pawg ntau lawm

 

• Kev tswj qhov kub thiab txias:Barrel kub 200-230℃(ABS), pwm kub 60-80℃kom tsis txhob yaj degradation los yog tsis sib xws.
• Siab thiab ceev:Txhaj siab 80-120 MPa, tuav siab 60% -70% ntawm kev txhaj tshuaj siab; staged txhaj ceev tswj kom tsis txhob yaj turbulence.
• Cycle thiab post processing:Moulding voj voog 30-60 s nyob ntawm seb qhov loj me. Annealing yog siv thaum tsim nyog los txo cov kev ntxhov siab sab hauv thiab txhim kho qhov ruaj khov.
• Kev them nyiaj yug Automation:: Reserve automation interfaces ntawm cov pwm rau tsis siv neeg demolding, rooj vag txiav, thiab tshuaj xyuas los txhim kho kev tsim khoom thiab sib xws.

 

 

Cim npe nrov: tv yas tsev pwm, Tuam Tshoj tv yas tsev pwm manufacturers, hoobkas