注塑模具的进浇和排气设计要点.ppt

* * * * * * * M 0 注塑模具排气 Vents of Plastic Injection Mold 深度(depth) : 1. 0.075 mm 易流塑料(easy-flow mat.) 2. 0.125 mm 难流塑料(stiffer-flow mat.) 3. 深度深到流道末端见飞边为准 (deep enough to feel flash at runner end) 宽度(width) : 和流道同宽(as wide as runner dia.) 排气唇部(vent lip): 1.5mm A1抛光(finish) (SPI Finish Designations：A-1 Grade #3 Diamond Buff) 排气沟通大气(vent channel to atmosphere): 1mm深(deep) 流道排气 Runner Vent 流道排气 Runner Vent 深度(depth) : 参照厂商建议 (refer to manufacturer’s recommendation) 宽度(width) : 5mm/25mm or 全周长(whole perimeter) 长度(length) : 1 mm or 1.5 mm A1抛光(finish) (SPI Finish Designations：A-1 Grade #3 Diamond Buff) 排气沟通大气(vent channel to atmosphere): 1mm深(deep) 分型面排气 Parting Line Vent Injection Vent VENTING GUIDELINES FOR FULLY OPTIMIZED MOLDS POLYMER DEPTH OF VENT (mm) EASY FLOW STIFF FLOW GLASS FILLED ABS, SAN, HIPS 0.0508 0.0762 Acetal 0.0127 0.0381 Acrylic 0.0508 0.0762 Cellulose/Acetate/Butyrate 0.0254 0.0381 Nylon 6/6 0.0127 — Nylon 6/6 – 13% Glass 0.0127 0.0381 Polyallomers 0.0127 0.0254 Polycarbonate 0.0381 0.0762 Polyethylene 0.0254 0.0508 Polypropylene 0.0254 0.0508 Polyphenylene Oxide 0.0254 0.0762 Polyphenylene Sulfide 0.0127 — Polysulfone 0.0254 — Crystal Polystyrene 0.0254 0.0508 Polyvinylchloride (Rigid) 0.0254 0.0762 Polyvinylchloride (Plasticized) Styrene-butadiene copolymer(SBC)(K-Resin) 0.0254 0.03~0.08 0.0508 TPE 0.025 线槽, PP-TD10+阻燃剂, 浙江省宁波市, 熔接线处易裂, 2014. 8. 25-26. 形成熔接线的熔体前沿收口处要加排气。 Before Sputtering After Sputtering Mercedes-Benz Logo Current Applications of IHTCPVD technology (Sputtering) Sputtering technology (Nano coating) are taking a replacement for the Chrome plating With sputtering technology the near-perfect surface is needed on the plastic part in order to archive good results PVD (Physical Vapor Deposition) Made by ZANINI AUTO GROUP, Spain C.Hsu：后无卡扣板, 前沿会合时, 夹气无路可走, 熔接线明显。 Z.R.A.： 模温加到200°C, 熔接线依然可见。 - 2010. 8. 4. - C.Hsu ：后有卡扣板, 前沿会合时, 夹气有路可走, 熔接线不明显。 - 2010. 8.