1, Yas Khoom Khoom & Kev Xaiv
|
Khoom siv |
Ceev / Shrinkage Rate |
Yam ntxwv & Daim Ntawv Thov |
Txoj kev kho deg |
|
ABS ua |
1.05g / cm³ / 0.5% yog ' |
Zoo tag nrho kev ua tau zoo thiab yooj yim rau xim match. |
Painting, Silk Printing, Pad Printing, Plating, Laser Engraving, IML |
|
PC ua |
1.20g / cm³ / 0.6% yog ' |
Siab hardness, nyuaj rau kev txhaj tshuaj molding, pob tshab, cuam tshuam -resistant. |
Painting, Silk Printing, Pad Printing |
|
PMMA ua |
1.18g / cm3 / 0.6% |
Cov khoom siv pob tshab, siv rau cov lus qhia thiab lo ntsiab muag. |
Painting, Silk Printing, Pad Printing, IML |
|
PP cov |
0.90g / cm³ / 1.5% yog ' |
Tsis yog - tshuaj lom, tsis muaj ntxhiab, siab - kub resistant, zoo toughness. Siv rau cov hnab ntim khoom noj thiab khob dej. |
Painting, Silk Printing, Pad Printing |
|
POM |
1.41g / cm³ / 1.5% yog ' |
Tsawg creep, tshuaj tiv thaiv, tus kheej -lubricating. |
Feem ntau tsis muaj kev kho mob |
|
PA |
1.20g / cm³ / 1.5% yog ' |
Tsawg creep, tus kheej -lubricating. Siv rau molded seals thiab gaskets. |
Feem ntau tsis muaj kev kho mob |
2, Yuav ua li cas tiv thaiv lub suab nrov ntawm iav? Siv cov ntaub ntawv zoo li POM, PA uas muaj kev hnav tsis kam, qaug zog, kev cuam tshuam, thiab tus kheej - lubrication.
3, "Pwm core / kab noj hniav ncaj qha los ntawm thaiv" txhais li cas? Nws hais txog machining qhov ncaj qha los ntawm ib qho thaiv ntawm cov hlau, uas tsis yog siv cov khoom ntxig.
4, Rib thickness feem ntau yog 0.6 ~ 0.7 npaug ntawm phab ntsa loj kom tsis txhob muaj cov cim dab dej.
5, Undercut tso txoj kev: Internal lifter, sab nraud slider.
6, Yas qhov rooj qhov rooj txoj kev: Lub rooj vag ncaj, ntug rooj vag, kiv cua rooj vag, tus pin- rooj vag taw tes, rooj vag cashew, lub rooj vag submarine.
7, Keypad tsim kev txiav txim siab: khawm clearance, phab ntsa thickness yuav tsum tsis txhob tuab heev, tsim nyog qhov tseem ceeb mus txawv tebchaws.
8, PCB thickness: 0.8 ~ 1 hli.
9, Qhov txawv ntawm "Tiao" thiab "Si"? Ob leeg yog 0.01mm; "Tiao" yog lus Taiwanese, "Si" yog Hong Kong lub sij hawm.
10, Aesthetic gaps tuaj yeem daws cov teeb meem tsis sib xws.
11, Yas haum rau ultrasonic vuam: PA, PC, PE, PP, PS, ABS.
12, Qhov tsawg kawg nkaus tshem tawm rau kev txav mus los: 3mm.
13, Kev ncua deb ntawm daim di ncauj rov qab thiab snap- haum: txog 10mm (ze dhau ua rau tsis txaus deformation).
14, Kev xaiv qhov chaw ntawm lub rooj vag: Cov ntu tuab, txoj kev luv tshaj plaws, cov cheeb tsam tsis cuam tshuam rau cov tsos lossis kev ua haujlwm.
15, Kev Ua Haujlwm:
- Mus koom cov khoom ncaws tawm - tawm lub rooj sib tham, nkag siab cov neeg siv khoom xav tau thiab cov khoom lag luam.
- ID ua kev tsim qauv, tshuaj xyuas ID, txheeb xyuas moldability, sib dhos, ib feem splitting, kho nto.
- Kev nthuav dav cov qauv tsim, tshuaj xyuas cov qauv, qauv qauv, qauv qauv sib dhos, txhim kho cov qauv raws li cov qauv qauv.
- Ua DFM (Design for Manufacturability) tshuaj xyuas, paub meej tias qhib pwm.
- Pwm ua raws- nce, sim txhaj tshuaj, sau cov teeb meem, qhia kev txhim kho.
Ua raws li kev tsim qauv tsim, tawm tswv yim txhim kho rau cov teeb meem kev tsim khoom.
16, Txhaj Moulding Defects & Txhim Kho Kev Txhim Kho:
- Sink Marks: Phab ntsa tuab heev - core tawm.
- Flow Marks: Nce venting - ntxiv inserts.
- Flash: Txo kev txhaj tshuaj siab, ua kom lub zog clamping, txo qhov kub thiab txias, rov- haum pwm.
- Weld Lines: Ua rau pem hauv ntej pwm kub, txhim kho lub qhov rooj qhov chaw, ntxiv tav, txo kev txhaj tshuaj ceev.
- Short Shot: Txhim kho qhov chaw ntawm lub qhov rooj, nce txhaj tshuaj, nce thickness.
- Flow Hesitation/Shadow Marks: Nce pwm kub, kho saum npoo, tsim gradual thickness hloov.
- Kos / Dragging: Nce lub kaum sab xis, polish pwm.
- Ejector Pin Marks/Whitening: Nce lub kaum sab xis, polish pwm, ntxiv ejector pins.
- Silver Streaks: Cov khoom tsis qhuav kom zoo.
- Dub Specks: Cov khoom overheated / decomposed; txawv teb chaws nyob rau hauv cov khoom los yog tsis huv tshuab ziab khaub ncaws; pluag pigment dispersion.
17, Cov khoom siv caij nplooj ntoos hlav? Yuav ua li cas nthuav dav ntawm 2D kos duab?
Khoom siv: Stainless hlau 304, Phosphor bronze.
2D kos duab qhov ntev: Sab hauv / sab nraud txoj kab uas hla, tus naj npawb ntawm cov coils nquag, ntev, txoj kab uas hla.
18, Txoj kev kho cov khoom seem?
Screws, snap-fits, ultrasonic vuam, nplaum nplaum, nias- haum, kub staking, threading.
19, Waterproofing qauv?
Overmolding, ultrasonic vuam, nplaum, O-rings, potting.
20, Yuav ua li cas txhim kho cov khoom thaum muaj teeb meem?
Teeb meem txhaj tshuaj
Tsim teeb meem
Cov teeb meem ntau lawm
21, Qhov txawv ntawm peb - phaj pwm thiab ob - phaj pwm?
Peb- phaj pwm muaj ib qho ntxiv txav tau stripper phaj. Ob- phaj pwm siv cov rooj vag loj loj (cov neeg khiav dej num txuas nrog rau ib feem, tshem tawm phau ntawv). Peb- phaj pwm siv qhov rooj pinpoint (kev sib txuas me me, tsis siv neeg sib cais).
22, Ua haujlwm ntawm qhov txias slug zoo?
Tiv thaiv cov khoom txias rau pem hauv ntej los ntawm kev nkag mus rau hauv cov kab noj hniav, ua rau muaj kev ntxhov siab thiab txo qis zog.
23, Cov txheej txheem kho deg rau cov khoom siv hlau?
Plating, electrophoresis, anodizing, txhuam, pleev xim, laser engraving.
24, Rib (txhim kho tav) tsim kev txiav txim siab:
Thickness yog 0.4 ~ 0.7 ntawm phab ntsa tuab, tsis pub tshaj 0.7 kom tsis txhob muaj cov cim dab dej.
Tsim nyog lub kaum sab xis.
Txo kev ntxhov siab ntawm lub hauv paus kom tsis txhob muaj cov cim dab dej.
25, Yuav ua li cas lub tshuab pwm muab faib ua?
Gating - Tsim - Venting - Txias - Ejection.
26.Yuav kuaj cov khoom siv hluav taws xob li cas?
Kev sim poob, kev sim ua haujlwm, kev sim khawm, ntsuas tus nqi / tso tawm, ntsuas dej tsis zoo.
Cov cuab yeej kuaj tau teev tseg: Cawv abrasion tester, hluav taws xob tensile tester, khawm lub neej tester, nag kuaj chamber, ntsev tsuag tester (rau kho vajtse), hluav taws xob moj tej tawg ziab qhov cub, vibration simulator, airtightness tester, leak point tester.
27, Lub taub hau kaw - tawm vs. sab kaw - tawm?
Butt kaw-tawm: tub ntxhais thiab kab noj hniav sib ntsib lub ntsej muag-rau- ntsej muag. Sab kaw-off: Cov tub ntxhais thiab kab noj hniav sib ntsib tom qab, xav tau kev nyab xeeb kev nyab xeeb. Preference: Butt shut-off > side shut-off > lifter.
28, Txoj Cai & Kev Ua Haujlwm ntawm cov txheej txheem kho saum npoo?
- Lub hauv paus ntsiab lus: Ua ib txheej txheej nrog cov khoom tshwj xeeb los ntawm kev siv lub cev / tshuaj. Txhim kho qhov tsos, kev ntxhib los mos, kev ua haujlwm.
- Muaj nuj nqi: Hloov cov tsos (xim, gloss, kab), kev ntxhib los mos (xav, roughness), functionality (hardening, anti{0}} ntiv tes, khawb kuj).
- Peb lub ntsiab tseem ceeb: Smoothness, zaj duab xis thickness, adhesion.
29, Cov Ntsiab Lus Tseem Ceeb ntawm Kev Tsim Qauv (Bosses/Snap-fits/Dips)
Cov ntsiab lus tshuaj xyuas tus qauv:
A. Kev tsim nyog ntawm cov khoom phab ntsa thickness, tav thickness.
B. Boss pilot qhov thiab sab nraud qhov ntau thiab tsawg, snap- haum kev koom tes (xav nruj snap ~ 0.7mm, yoog raws snap<0.5mm).
C. Yooj yim ntawm kev sib dhos, xav tau kev ruam - pov thawj tsim.
D. Kev tsim nyog ntawm kev tshem tawm, khawm-rau- qhov kev tshem tawm, cuam tshuam cuam tshuam.
30, Ob-shot molding vs. Overmolding:
Ob- txhaj pwm: tuaj yeem ua xim sib txawv, siab precision, hnav ntau dua- tiv taus, zoo dua qub. Yuav tsum muaj ob lub pwm. Ib feem tsis raug tshem tawm; pwm rotates hauv tshuab.
Overmolding: Kev tsim qauv yooj yim, ntau dua cov khoom. Thawj qhov txhaj tshuaj raug tshem tawm thiab muab tso rau hauv lwm lub pwm rau txhaj tshuaj thib ob.
