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1、塑膠電鍍介紹PlatingonPlastics塑膠電鍍介紹PlatingonPlastics塑膠電鍍?cè)砑白⒁馐马?xiàng)PrinciplesofPlatingonPlastic第一站素材選擇ABS塑料案例(Step1:SelectingMaterialABSPlasticCase)1.最好採(cǎi)用電鍍級(jí)ABS塑膠如圖所示其丁二烯含量15%~16%密著強(qiáng)度最好SelectstheABSplasticsshowingontherightwhichthebutadieneis15%-16%.Itsadhesionisbest.2.采用70%~95%PC+ABS材料要請(qǐng)供應(yīng)商
2、提供防火材料%、PC%、等相關(guān)資料Appliershouldofferfireproofmaterial,PC%,etc,andreferencesbeforeselecting70%-95%PC+ABS.3.塑膠電鍍?cè)蠎?yīng)完全乾燥(含水率0.1%以下)Materialsofplatingonplasticshouldbedriedtotally.4.塑膠電鍍?cè)媳M量避免染色Materialsofplatingonplasticmustpreventdyeing.5.塑膠電鍍?cè)蟄L認(rèn)證Materialsofplatingonplasticshouldbea
3、ttestedbyUL.0.51.52.02.53.03.54.04..51.0141915161718密著強(qiáng)度Kgf/cm丁二烯?。鱰%各材質(zhì)丁二烯之含量塑膠電鍍介紹PlatingonPlastics塑膠電鍍?cè)砑白⒁馐马?xiàng)第二站模具設(shè)計(jì)Step2:MouldDesign1.塑膠電鍍模具必須預(yù)留電鍍夾具掛架點(diǎn)(以防產(chǎn)品變形及生產(chǎn)便利性)Remainspointsforelectroplatingrackinmouldofplatingonplastic.2.模具設(shè)計(jì)趨向:耐高溫不易頂開產(chǎn)生毛邊、射出點(diǎn)不可太細(xì)以防入水?dāng)嗔衙撀?、預(yù)防尖端放電(加框)、注意離模斜
4、度、預(yù)留排氣孔、注意頂針粗細(xì)影響外觀及進(jìn)膠口位置產(chǎn)生之結(jié)合線等Trendofmouldsdesign:Mouldsshouldofberesistanttohightemperatureandnoteasilyopentocreatecrudeoutline,theejectionpointshouldnotbetoosmalltoprevententeringwaterandbreaking.Preventsdischargeoftip.Remindstheventilator.Paysattentiontothatthicknessoftipwillin
5、fluencetheexteriorandthecombinationlinecreatedintheejectionhole.5.模具需預(yù)留電鍍後膜厚及組裝間隙Remainthethicknessofmembranewhichformedafterelectroplating.3.塑膠電鍍模具成型盡量避免尖端設(shè)計(jì),盡可能改為R角Adoptsroundcornerinsteadoftipcornerinmoulddesign.4.模具孔洞盡量設(shè)計(jì)導(dǎo)通,預(yù)防殘留藥水不易清洗Designspassageintheholetocleantheremnants.塑膠
6、電鍍介紹PlatingonPlastics塑膠電鍍介紹PlatingonPlastics塑膠電鍍?cè)砑白⒁馐马?xiàng)第三站成型射出FormationandEjection5.尺寸確認(rèn):依廠商訂定長(zhǎng)寬尺寸、範(fàn)圍Affirmingthesize:decidesthesizeandrangeoflenthandwidthaccordingtotherequirementofthefirm.2.射出參數(shù)在不頂模、不起毛邊狀況下,盡可能拉高樹脂溶解溫度及模溫溫度,降低射出壓力及射出速度,以減少應(yīng)力產(chǎn)生TheejectionparametersuchasplasticTman
7、dmouldtempretureshouldriseashighaspossidbleandtheejectionstressandspeedshouldbereducedtolessenthestress.3.成形表面確認(rèn):不可有感結(jié)合線、刮痕、頂凸、拉模、縮水、起蒼、包風(fēng)、及異色點(diǎn)(浮出表面上)等等Affirmingthesurface:Theremustbenocombinationline,scratch,etc.4.成型品包裝:用Tray(托盤)+紙箱,以防碰刮傷Packing:adopttrayandpapercasetopreventbeing
8、scratched.1.脫模劑最好能不用,要用務(wù)必使