Vim Li Cas Ib -Size-Fits-Txhua Pwm Tsim Tsis Tau
Cov yas sib txawv muaj tus cwj pwm txawv ntawm lub cev thaum lub voj voog molding.
Qee qhov yuav luag tsis tshua muaj thaum txias (0.4 feem pua rau PS). Lwm tus poob qis heev (2.5 feem pua rau qee qib POM). Qee qhov xav tau tshwj xeeb pwm steel qib los tiv thaiv tshuaj tua kab mob. Qee tus xav tau txias txias, lwm tus xav tau txias txias kom tsis txhob muaj kev ntxhov siab. Qee qhov ntws yooj yim mus rau hauv nyias ntu, lwm tus tawm tsam nrog txhua yam hauv qab 1 hli phab ntsa tuab.
Thaum tus tsim pwm tsis paub cov khoom twg nkag mus, lawv yuav tsum ua qhov kev xav. Cov kev xav no feem ntau ua kom zoo rau cov khoom siv ntau tshaj plaws hauv khw pom - feem ntau ABS rau cov khoom kom zoo nkauj. Yog tias koj qhov kev tsim tawm tiag tiag khiav iav- puv nylon lossis polycarbonate, tib lub pwm tuaj yeem ua rau qhov sib txawv, tsim cov kab sib txuas, lossis tsuas yog ua tsis tiav.
Tau txais qhov kev txiav txim siab ntawm cov khoom siv kaw ua ntej kev pib pib yog ib qho tseem ceeb tshaj plaws uas tus neeg yuav khoom tuaj yeem ua rau lawv qhov project. Tshaj dhau lub sij hawm lub voj voog thiab cov khoom zoo nkauj zoo nkauj, cov khoom xaiv tsav pwm steel xaiv, kev tsim cov txheej txheem txias, ejection lub tswv yim, thiab nto tiav specification - yeej txhua yam raws li nram no.
3 Cov Tsev Neeg Loj Loj thiab Lawv Cov Pwm Tsim Kev Xav Tau
Plastics faib ua peb hom kev coj cwj pwm. Kev nkag siab txog qeb twg koj cov khoom siv yog thawj kauj ruam hauv kev tsim pwm tsim rau cov khoom siv.
Amorphous Plastics - Rau Cosmetic thiab Optical Parts
Amorphous polymers zoo li ABS, polystyrene (PS), thiab polycarbonate (PC) muaj cov saw hlau molecular uas ua rau cov qauv sib txawv tsis yog cov qauv crystalline. Qhov no ua rau lawv ntau yam uas tseem ceeb rau kev tsim pwm:
Tsawg shrinkage tus nqi, feem ntau 0.4 mus rau 0.7 feem pua
Lub ntsej muag zoo kawg nkaus muaj peev xwm ua tiav - lawv tuaj yeem tuav polish kom pom qhov pom tseeb
Predictable dimensional raug
Siab rhiab heev rhiab heev, txhais tau tias lawv muaj kev ntxhov siab ntau dua
Rau Mouse Plhaub Txhaj Pwm, ABS yog cov khoom siv ua haujlwm. Nws cov shrinkage tsawg txhais tau hais tias nruj kam rau ua rau cov yam ntxwv sib dhos, thiab nws lub peev xwm ua tiav saum npoo sib phim cov kev xav tau ntawm cov neeg siv khoom siv hluav taws xob. Pwm tsim rau ABS tsom rau kev ua kom zoo nkauj ntawm qhov chaw khaws cia - qhov chaw zoo ntawm qhov rooj kom tsis txhob muaj cov kab sib txuas, txaus ejector tus pin suav los tiv thaiv kev ntxhov siab, thiab polishing nto tsim nyog rau qhov pom tau - thaj tsam specification.
A Yas PS Khob Txhaj Pwmsiv - lub hom phiaj PS lossis cuam tshuam - hloov pauv hloov pauv. Pwm tsim ntawm no tsom rau nyias - phab ntsa ntws optimization thiab ultra- lub sij hawm ceev ceev. PS tuav cov pwm txias kom zoo (feem ntau yog 35 txog 45 degree), uas ua rau nws txoj kev lag luam - ua haujlwm zoo rau siab - ntim nyias- phab ntsa ua haujlwm.
Semi-Crystalline Plastics Rau Kev Ua Haujlwm thiab Hnav
POM (acetal), polypropylene (PP), thiab nylon (PA66) yog semi-crystalline polymers. Lawv cov saw hlau molecular npaj rau hauv thaj tsam crystalline thaum lub caij txias, muab lawv cov yam ntxwv sib txawv ntawm cov khoom siv amorphous:
Siab shrinkage tus nqi, feem ntau 1.5 mus rau 2.5 feem pua
Cov khoom siv zoo heev - lub zog, nruj, hnav tsis kam
Qhov qis qis rhiab heev - ntau dua zam txim ntawm geometric stress concentrators
Ntau xav tau pwm kub tswj
ATsav Iav Txhaj PwmFeem ntau siv POM vim nws qhov zoo sib xws ntawm kev sib txhuam qis, qhov ruaj khov nyob rau hauv qhov hnyav, thiab ua rau qaug zog. Tab sis qhov siab shrinkage ntawm POM (1.8 mus rau 2.5 feem pua) txhais tau hais tias cov pwm kab noj hniav yuav tsum raug txiav kom loj dua qhov tiav qhov ntev los ntawm cov nqi raws nraim. Tau txais qhov tsis ncaj ncees lawm txhais tau tias tawm ntawm - ntawm - cov khoom tshwj xeeb uas tsis tuaj yeem ua kom zoo.
POM kuj xav tau pwm kub - pwm kub kub ntawm 80 txog 95℃- kom ntseeg tau tias muaj crystallization. Cov pwm txias tsim cov khoom uas tsis tshua muaj crystallinity, cov khoom siv tsis zoo, thiab kev ntxhov siab sab hauv uas tshwm sim ua tsov rog tom qab.
Engineering Plastics Rau Siab -Kev Ua Haujlwm Zoo
PC/ABS blends, PEEK, PPS, thiab zoo xws li engineering yas thawb pwm tsim rau hauv thaj chaw tshwj xeeb:
Ua haujlwm kub siab tshaj 300 degree
Feem ntau abrasive (iav- puv, ntxhia- qib puv)
Pwm steel xaiv ua qhov tseem ceeb
Rhaub pwm tshuab feem ntau xav tau
Rau cov ntaub ntawv no, tus qauv P20 pwm hlau yuav tsis muaj sia nyob ntev. H13 kub-cov cuab yeej ua haujlwm hlau lossis cov qib tshwj xeeb stainless xws li S136 feem ntau yuav tsum tau, nrog rau qhov nyuaj ntawm HRC 50 txog 58. Cavity polish yuav tsum tiv taus abrasive muab tub lim. Venting tsim yuav tsum tau ua phem gases tso tawm thaum lub sij hawm ua.
Khoom Parameters Txhua Pwm Designer yuav tsum paub
Ntawm no yog cov lus siv uas yuav tsum muaj nyob rau txhua tus pwm engineer's phab ntsa thaum pib ib qhov project.
|
Khoom siv |
Lub shrinkage |
Pwm Temp |
Melt Temp |
Ejection Risk |
Daim ntawv thov zoo tshaj plaws |
|
ABS |
0.4-0.7% |
50-80 degree |
220-260 degree |
Tsawg |
Mouse Plhaub Txhaj Pwm |
|
PS |
0.4-0.6% |
35-65 degree |
200-260 degree |
Siab |
Yas PS Khob Txhaj Pwm |
|
POM |
1.8-2.5% |
80-105 degree |
190-210 degrees |
Tsawg |
Tsav Iav Txhaj Pwm |
|
PC |
0.5-0.7% |
80-110 degree |
280-320 degree |
Nruab nrab |
Optical vaj tsev |
|
PP |
1.5-2.0% |
30-70 degree |
200-280 degree |
Tsawg |
Caps, ntim khoom noj |
|
PAB 66 |
1.5-2.5% |
80-110 degree |
270-300 degree |
Nruab nrab |
Kev lag luam iav |
Qee qhov kev soj ntsuam los ntawm cov ntaub ntawv no. POM qhov shrinkage ntawm 1.8 mus rau 2.5 feem pua yog kwv yees li 4 mus rau 6 npaug siab dua ABS's 0.4 mus rau 0.7 feem pua. Qhov ntawd yog qhov sib txawv loj heev - thiab nws yog vim li cas cov kab noj hniav qhov ntev ntawm POM pwm yuav tsum loj dua cov kab noj hniav qhov ntev ntawm qhov sib npaug ABS pwm rau tib qhov ua tiav qhov loj.
Cov pwm kub sib txawv kuj tseem ceeb. ABS pwm khiav 50-80℃siv tus qauv ntsuas kub. POM pwm khiav 80-105℃xav tau ntau dua qhov muaj peev xwm cua sov tshuab thiab rwb thaiv tsev kom zoo. PC pwm khiav 80-110℃nrog yaj kub siab tshaj 280℃yuav tsum tau kub-khiav tshuab tshwj xeeb rau kev ua haujlwm kub.
Yuav Ua Li Cas Pwm Hlau Yuav Tsum Hloov Nrog Cov Khoom
Pwm xaiv cov khoom siv feem ntau tsis saib xyuas ntawm cov qauv tsim, tab sis nws cuam tshuam rau ob qho tib si pib pwm nqi thiab ntev - lub neej kev pab cuam.
|
Hom yas |
Pom zoo Mould Steel |
Hardness |
Kev Pabcuam Lub Neej |
|
PS, PP (kev siv dav) |
P20 |
HRC 28-32 |
500K-1M txhaj tshuaj |
|
ABS (cosmetic) |
NAK80, P20 |
HRC 38-43 |
1M txhaj |
|
POM, iav -fiber |
S136, H13 |
HRC 48-55 |
1.5M + txhaj tshuaj |
|
PC, PA66 (Engineering) |
H13, HWV 61 |
HRC 50-58 |
1M + txhaj tshuaj |
|
Corrosive (PVC, FR) |
420 Ib., 136 |
HRC 48-52 |
Hloov pauv |
Ib hom yas PS khob Txhaj Pwm ua haujlwm dav dav- lub hom phiaj polystyrene tuaj yeem siv tus nqi- siv tau zoo P20 steel vim PS tsis yog- xeb thiab tsis yog- abrasive. Cov pwm xa tawm 500,000 rau 1,000,000 txhaj tshuaj yam tsis muaj qhov tseem ceeb.
Lub Mouse Plhaub Txhaj Mould rau ABS feem ntau siv NAK80 - ua ntej- cov pwm tawv tawv uas tuav cov txhuam zoo tshwj xeeb rau cov kev xav tau ntawm lub ntsej muag zoo nkauj. Tus nqi siab dua me ntsis (kwv yees li 25 feem pua ntau dua P20) yog qhov ncaj ncees los ntawm kev ua kom zoo nkauj zoo nkauj thiab ua haujlwm ntev me ntsis.
ATsav Iav Txhaj Pwmkhiav POM, tshwj xeeb tshaj yog iav - cov qib puv, xav tau cov hlau tawv tawv xws li S136 lossis H13. iav - puv POM yog abrasive - khiav nws los ntawm P20 kab noj hniav hnav qhov chaw pom pom hauv 200,000 txhaj tshuaj. Nrog rau kev xaiv hlau zoo, tib lub iav pwm xa 1.5 lab txhaj tshuaj lossis ntau dua.
Lub tuam txhab muaj koob npe txhaj tshuaj pwm sib tw steel xaiv rau cov khoom siv tiag tiag thiab ntim cov cai es tsis yog ua rau ib qib steel rau txhua qhov project. Cov khoom zoo li ntawd - tshwj xeeb engineering yog dab tsi cais cov cuab yeej hwm zoo los ntawm cov khoom siv cuab yeej.
Kev lag luam Trends Sustainable Materials Yog Hloov Pwm Tsim
Ob qhov kev tshwm sim tshiab tau hloov kho li cas pwm tsim kom haum rau cov ntaub ntawv tshiab.
Cov khoom siv rov ua dua tshiab tau loj hlob sai thoob cov neeg siv khoom ntim. Recycled PS tshwj xeeb yog nce ntau hauv cov khob ntim khoom pov tseg, ob qho tib si rau kev thov kom ruaj khov thiab txo tus nqi. Qhov kev sib tw: cov qib rov ua dua tshiab muaj ntau dua batch-rau-batch variation dua li cov ntaub ntawv nkauj xwb. Cov qauv tsim pwm xav tau kev ua haujlwm dav dav kom haum rau qhov kev hloov pauv no yam tsis muaj qhov tsis xws luag.
Bio-raws li cov yas xws li PLA, PHA, thiab bio-PE tab tom loj hlob hauv zaub mov- thov hu rau daim ntawv thov. Cov ntaub ntawv no muaj cov yam ntxwv ua haujlwm sib txawv ntawm cov roj av-raws li qhov sib npaug. Cov qauv tsim pwm yuav xav tau kev hloov pauv cua txias, qhov sib txawv ntawm qhov sib txawv, thiab hloov cov tshuab ejection piv rau cov khoom siv ib txwm muaj.
Rau cov khoom lag luam taug kev hloov pauv no, ua haujlwm nrog kev paub txog kev txhaj tshuaj pwm lub Hoobkas uas tau tsim cov khoom hauv ob qho tib si nkauj xwb thiab bio- raws qib ua rau muaj qhov sib txawv loj hauv kev sim - mus rau - kev ua tau zoo.
Regulatory and Industry Standards that Apply
Kev xaiv cov khoom sib txuas rau hauv kev tswj hwm ncaj qha:
ASTM D3641 tus qauv kev coj ua rau kev txhaj tshuaj molding
TS EN ISO 1043 Cov ntaub ntawv pov thawj cov khoom yas
FDA 21 CFR rau cov khoom siv tiv tauj rau zaub mov (tseem ceeb rau zaub mov- qib PS daim ntawv thov)
RoHS thiab REACH rau cov khoom siv hluav taws xob (tseem ceeb rau cov neeg siv khoom siv hluav taws xob)
IATF 16949 rau kev siv tsheb (tseem ceeb rau lub tsheb iav tshuab)
EU Txoj Cai 10/2011 rau cov khoom siv tiv tauj cov khoom noj yas
Cov ntaub ntawv sib piv cov qauv no yuav tsum nrog cov cuab yeej xa khoom los ntawm tus neeg xa khoom loj - tsis yog qhov kev xav tom qab, tab sis raws li tus qauv xa tawm.
Kev tsim khoom tiag tiag Scenario Ib Pwm, Peb Cov Khoom? Vim Li Cas Thiaj Ua Tsis Tau
Ntawm no yog ib tug scenario peb pom ntau zaus. Cov neeg siv khoom lag luam nug seb ib qho pwm puas tuaj yeem tsim ib feem hauv ABS, PC-ABS sib xyaw, thiab iav- puv PC - kom yooj yim rau lawv cov khoom muag thiab txo cov cuab yeej peev.
Ntawm daim ntawv, qhov no suab tsim nyog. Tag nrho peb cov ntaub ntawv tsim cov khoom zoo sib xws thaum txhaj tshuaj molded. Hauv kev xyaum, tus nqi shrinkage sib txawv txaus (0.5%, 0.6%, 0.3%) uas tib lub kab noj hniav ua rau qhov sib txawv ntawm qhov sib txawv ntau dua li cov neeg siv khoom tau teev tseg los ntawm ib qho ntawm 2 mus rau 3 zaug.
Qhov kev daws teeb meem tiag tiag: sib koom pwm puag nrog peb qhov sib hloov kab noj hniav ntxig, txhua qhov txiav kom them nyiaj rau cov khoom siv tshwj xeeb shrinkage tus nqi. Tus nqi yog kwv yees li 1.6 npaug ntawm ib qho pwm es tsis yog 3 zaug - ib qho txiaj ntsig txuag - thaum tseem xa qhov tseeb qhov ntev rau txhua yam khoom.
Qhov project zoo li no yog vim li cas qhov kev sib tham pem hauv ntej nrog koj tus neeg muag khoom txog cov khoom siv thiab cov khoom tseem ceeb heev. Txawm hais tias koj tab tom nrhiav ntau- kab noj hniav yas PS Khob Txhaj Pwm rau siab - ntim ntim, precision Tsav Iav Txhaj Pwm rau cov khoom siv iav sib dhos, lossis cov tshuaj pleev ib ceMouse Plhaub Txhaj Pwmrau cov neeg siv khoom siv hluav taws xob, cov khoom siv txiav txim siab tsav txhua lwm yam kev xaiv engineering hauv qab.
FAQ
Q: Tib lub pwm puas tuaj yeem ua cov yas sib txawv?
A: Feem ntau tsis muaj. Qhov sib txawv shrinkage tus nqi thiab cov txheej txheem ua tiav txhais tau hais tias pwm tsim rau ib yam khoom yuav tsim tawm - ntawm - qhov kam rau ua rau lwm qhov. Sib koom pwm hauv paus nrog cov khoom siv- cov kab noj hniav tshwj xeeb yog qhov chaw nruab nrab ua haujlwm rau cov neeg siv khoom xav tau ntau yam khoom siv ntawm tib qhov tsim.
Q: Vim li cas POM Pwm tsim txawv ntawm ABS?
A: POM shrinks 4 mus rau 6 npaug ntau dua li ABS thaum lub sij hawm txias, xav tau ntau qhov kab noj hniav loj los tsim kom raug - qhov loj me. POM kuj xav tau pwm kub (80-95℃piv rau 50-70℃rau ABS) thiab muaj peev xwm txias dua. Cov pwm hlau feem ntau yuav tsum tau ua kom nyuaj dua los daws cov kev xav tau ntau dua.
Q: Kuv puas xav tau cov pwm sib txawv rau cov yas sib txawv?
A: Yog, tshwj xeeb tshaj yog rau cov khoom siv abrasive sau lossis cov yas corrosive. Tus nqi -P20 zoo ua haujlwm zoo rau cov khoom siv dav dav- cov khoom siv xws li PS lossis ABS tsis tau ntim. Iav- puv POM lossis polycarbonate feem ntau xav tau cov pwm tawv tawv zoo li S136 lossis H13. Corrosive plastics zoo li PVC lossis nplaim hluav taws- cov qib retardant xav tau cov hlau tsis muaj pwm.
Q: Ua li cas Recycled Yas cuam tshuam rau Pwm Tsim?
A: Cov qib rov ua dua tshiab muaj ntau dua batch- rau- batch variation dua li cov khoom siv nkauj xwb, xav tau cov pwm nrog cov qhov rais dav dua. Qhov no feem ntau txhais tau hais tias me ntsis ntau lub rooj vag qhov loj me, ntau qhov kev tsim tawm ejection zoo dua, thiab qhov cua zoo dua los tswj cov cwj pwm sib txawv ntawm cov dej ntws ntau.
Q: Kuv tuaj yeem nrhiav tus neeg tsim khoom muaj kev paub nrog ntau yam ntaub ntawv nyob qhov twg?
A: Nrhiav ib tus neeg muag khoom nrog cov ntaub ntawv kev paub dhau los ntawm amorphous, semi-crystalline, thiab engineering plastics. Ib tug zoo-cov lag luam wholesale txhaj tshuaj pwm yuav tsum muaj peev xwm qhia tau cov ntaub ntawv kawm nyob rau hauv ABS vaj tse, POM gears, PC optical qhov chaw, thiab ntim cov ntaub ntawv - tsis yog ib tug tshwj xeeb cheeb tsam. Sunhingstones ua haujlwm thoob plaws cov khoom siv no nrog rau tag nrho DFM kev sib tham tshwj xeeb rau koj xaiv polymer.
Ntsiab Cai
Cov ntaub ntawv yas faib ua peb tsev neeg: amorphous (ABS, PS, PC), semi-crystalline (POM, PP, PA66), thiab qib engineering (PEEK, PPS, puv engineering plastics)
Shrinkage tus nqi sib txawv 4-6x ntawm cov ntaub ntawv, ua rau muaj kev cuam tshuam rau kab noj hniav
47% ntawm cov pwm rov ua haujlwm yog los ntawm cov khoom siv- pwm mismatch (ASTM cov ntaub ntawv)
Pwm steel yuav tsum phim cov khoom siv: P20 rau lub hom phiaj dav dav, NAK80 rau tshuaj pleev ib ce, S136 / H13 rau engineering plastics
Cov khoom sib txawv ntuj ua ke nrog cov tsev neeg sib txawv polymer:Mouse Plhaub Txhaj PwmFeem ntau siv ABS, Lub Cev Lub Cev Txhaj Pwm siv POM, Yas PS Khob Txhaj Pwm siv PS
Recycled thiab bio-raws li plastics yuav tsum tau ua ntau qhov rais hauv pwm tsim
Xauv hauv cov khoom tshwj xeeb ua ntej kev tsim cov cuab yeej pib - nws tsav txhua qhov kev txiav txim siab engineering
Tsim ib lub pwm uas phim koj cov khoom siv tiag tiag
Txawm hais tias koj qhov project xav tau ABS cosmetic qhov chaw, POM precision gears, PS ntim khoom, lossis cov khoom siv tshwj xeeb engineering, txoj cai pwm tsim pib nrog kev txiav txim siab ntawm cov khoom raug kaw. Tau txais qhov kev sib tham no nyob rau theem DFM, thiab tag nrho cov haujlwm ua haujlwm zoo.
Sunhingstones muab cov khoom siv -Kev tshuaj xyuas DFM tshwj xeeb thoob plaws peb yam khoom lag luam - Yas PS Khob Txhaj Pwm cov cuab yeej rau siab - ntim ntim, Lub Cev Lub Cev Txhaj Tshuaj Pwm tsim rau cov khoom lag luam precision, thiab Mouse Plhaub Txhaj Mould cov kev pab cuam rau cov neeg siv khoom siv hluav taws xob.
