模具介绍ppt课件

1、JRF GEP 10/10/00JRF GEP 10/10/00GOODPARTTooling Considerations模具設計考量塑料成型條件模具設計JRF GEP 10/10/00Injection Tooling StructureTooling Type and Structure ( 模具型式及結構 )Runner System and Gating ( 進料系統 )Cooling System ( 溫度控制系統 )Ejector system ( 頂出系統 )Venting and others ( 逃氣及其它 )JRF GEP 10/10/00Two Plate Mold 兩

2、兩 板板 模模JRF GEP 10/10/00JRF GEP 10/10/001JRF GEP 10/10/002JRF GEP 10/10/003JRF GEP 10/10/004JRF GEP 10/10/00Tool Thermal ManagementPEI 塑料之模具建議运用隔熱裝置以利模溫控制 公模公模母模母模附加額外附加額外隔熱板隔熱板隔熱板隔熱板隔熱板隔熱板JRF GEP 10/10/00公模座公模座JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10

3、/10/00Injection Molding ToolingCam Actions ( 滑塊機構滑塊機構 )Hydraulic ( 油壓驅動油壓驅動 )PlasticCorePinCored HoleCoreHydraulic CylinderCavityJRF GEP 10/10/00123JRF GEP 10/10/00PEI 模具常用之鋼材硬 度鋼材特性運用範圍ASSABAISIHRC718P-2030-33高鎳鉻鉬合金工具鋼拋光行可可熱處理至HRC52大型熱塑性塑料模具 TV, LCD , Monitor , 儀錶板 , 家用品模具壽命約 30萬模次740HP-2035-40718

4、改良型拋光性較718好高拋光性 高硬度模具預硬合金鋼模具壽命約 35萬模次8407-MSH-1350-54結晶組織細緻化處理耐熱疲勞性佳高硬度模具要求表面亮度模具之塑膠模模具壽命約 50萬模次STAVAX ESR不鏽鋼模具鋼材鏡面拋光性佳光學鏡片 PVC模 光碟片 醫療器材模具壽命約 50萬模次CORRAX耐腐蝕性好熱處理此寸穩定性佳鏡面拋光性佳PVC 模具 車燈模具 醫療器材模具壽命約 50萬模次NAK-80 (JIS)NAK-8035-40結晶組織細緻化處理鏡面拋光性佳光學鏡片 PVC模 光碟片 醫療器材車燈模具模具壽命約 50萬模次鋼 材42032-50JRF GEP 10/10/00R

5、adiusOrificeJRF GEP 10/10/00Sprue Bushings ( 注道襯套注道襯套 )Thermal Shut - OffJRF GEP 10/10/00REVERSETAPER最正确最正确Z PULLER好好GROOVE尚可尚可SUCKER PIN 不建議运用不建議运用JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00PLJRF GEP 10/10/00冷料井建議尺寸冷料井建議尺寸JRF GEP 10/10/00AAAABBBBJRF GEP 10/10/00AAAAAAAAJRF GEP 10/10/00JRF GEP

6、10/10/00ETCJRF GEP 10/10/00 JRF GEP 10/10/00JRF GEP 10/10/00多點進膠方式多點進膠方式JRF GEP 10/10/00Injection Molding Tooling熱流板熱流板 (分流板分流板) Manifold 建議建議 由外部提功均勻熱源 (如右圖示 4 Heaters) 加熱器最少提供 50 Watts/in3 JRF GEP 10/10/00Injection Molding ToolingHot Runner SystemsCavity Plate = 1500CManifold = 3800C运用熱膠道好處运用熱膠道好處

7、 降低生產時間 - 降低約 10-15% 減少塑料浪廢 - 沒有料道及注道塑料改善废品外觀 - 低內應力 - 較好外觀JRF GEP 10/10/00JRF GEP 10/10/00由废品肉厚處由废品肉厚處; 接近轉角處接近轉角處; 遠離負載區或應力集中處遠離負載區或應力集中處 ; 質質量中心處量中心處 (非废品中心處非废品中心處)依废品厚度及塑料流動指數依废品厚度及塑料流動指數废品外觀需求废品外觀需求废品設計肉厚废品設計肉厚模穴數需求模穴數需求HOT RUNNER; HOT TIP; VALVE GATE; THREE PLATE; EDGE GATE; CASHEW GATE; DIAPH

8、RAGM GATE SUBGATE; TUNNEL GATE; FLASH GATE; FAN GATE; HOT EDGE GATE; DIRECT SPRUE; ETC. ETC. ETC.JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00RADIUSJRF GEP 10/10/00PARTFLASH GATEFANGATEPRIMARY RUNNERSECONDARY RUNNERSPRUEJRF GEP 10/10/00Tunnel GateJRF GEP 10/10/00Cashew Gate ( 牛角澆口牛角澆口 )不建議运用於不建議运

9、用於 ULTEMJRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00Injection Molding Design MoldabilityHoles靠破孔設計會靠破孔設計會阻礙塑料流動阻礙塑料流動Gate - Melt Entry PointJRF GEP 10/10/00Injection Molding Design MoldabilityGate - Melt Entry Point塑料可得到塑料可得到較好流動較好流動HolesJRF GEP 10/10/00JRF GEP 10

10、/10/00JRF GEP 10/10/00JRF GEP 10/10/00Mold Cooling隔板式噴水式導熱棒 冷卻水路製作方式JRF GEP 10/10/00Injection Molding Tooling連續式水路 INOUTPinBladeJRF GEP 10/10/00Injection Molding Tooling噴泉式冷卻噴泉式冷卻INOUTPinTube冷卻效率佳JRF GEP 10/10/00最少尺寸為水路直徑兩倍JRF GEP 10/10/00JRF GEP 10/10/00INOUTOOOOOOOOOOOO1201251251451301401401301501

11、45不建議运用不建議运用JRF GEP 10/10/00MOLD成形 PEI 塑料之模具溫度建議為 150 CJRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00Tooling and Processing Tooling and Processing Design and Processing Dictate Part PerformanceApply Full Parting Line Venting降低射出壓力防止氣體在充料末端聚集废品外觀較佳0.038 - 0.075mmdept

12、hGateVent1.5 mm min Land LengthNoteStep12.7mm1.27 mmVent Placement Every25mm to 50mmIntervalJRF GEP 10/10/000.04 0.07 mmJRF GEP 10/10/00JRF GEP 10/10/00JRF GEP 10/10/00無拔模斜度無拔模斜度 不易頂出不易頂出易頂出易頂出JRF GEP 10/10/00 拔模斜度拔模斜度最少最少 1/2O 拔模斜度拔模斜度拔模斜度拔模斜度JRF GEP 10/10/00 JRF GEP 10/10/00JRF GEP 10/10/00Stainle

13、ss or Hardened P-20 with SPI 1 FinishTooling Surface Treatment Tooling Surface Treatment Most of the industry uses 420 stainless steel with a mininum hardness of 46 Rc. This approach offers good surface appearance with a low risk for corrosion.Some suppliers use high-purity P20 steel. While we are n

14、ot aware of any rusting or corrosion issues associated with P20 steel, this material will rust fairly easily as compared with stainless steel.Finkel, double vacuum re-melt steel has been used successfully. The vacuum re-melt process reportedly removes sulfides that can lead to surface pitting.In ter

15、ms of surface nitriding, there are some unconfirmed reports that ULTEM has an affinity for Nitrided surfaces. We Recommend That You Do Not Use Nitrided MaterialsJRF GEP 10/10/00研磨表面狀況Type of FinishSPI 番號SPI NumberDescriptionA1鑽石膏 # 8000A2鑽石膏 # 5000A3鑽石膏 # 3000B1砂紙 # 600B2砂紙 # 400B3砂紙 # 320C1油石 # 600

16、C2油石 # 400C3油石 # 320D1噴砂 # 1000D2噴砂 # 240D3噴砂 # 24高光澤度High Polish Finishes砂紙研磨表面Paper Finishes油石研磨表面Stone Finishes噴砂研磨表面Dry Blasted FinishesJRF GEP 10/10/00Polished Tool Surface Preparation: Tool PolishBenching: 100 grit stone 800 grit stoneTypically 5 to 6 stepsBenching: Emory Paper FinishFelt and Diamond Paste (8000 grit #3 micron range)Hyprex Diamond CompoundThe Society of Plastics IndustryCosmetic Specificationsof Injection Molded PartsJudgement as to the conformance ofsurface finish is to be made by comparinga part to an SPI