2. Adopt optimal molding conditions like injection speed, injection pressure, mold temperature, and proper gas venting. 1. This is a troubleshooting guide that should be in every operator’s toolbox or on his/her smartphone or tablet. The Rapid Guide to Perfect PET Bottles. Injection Molding Reference Guide Materials, Design, Process Optimization, Troubleshooting and Other Practical Information from the Experts at Routsis Training Plastics is a sophisticated and diverse discipline. If >5 minutes, use smaller shot machine or reduce cycle time . On this page you will find the online, condensed version of this guide, offering quick answers to your injection molding … At WayKen, we have encountered many similar plastic injection molding problems and solutions in some cases of prototype injection molding. 2. 1. A large number of the defects mentioned above can be prevented in the design process by incorporating proper tooling design into the iterative process. Molding Troubleshooting Guide Bond Readout Bond readout is a surface distortion similar to a hump or sink that occurs over a bond line Probable Cause Material Process • Mismatch of compliance between outer panel, inner panel and adhesive • Incompatible thermal expansion coefficients between the SM and the … Thin upper and thick lower: contrary to the above. Conditions are variable and include: machine used, machine setup, mould type and complexity, materials and manufacturing environment. Check the injection and plasticizing capacity of plastic injection molding machine, and then compared with the actual quantity of injection molding and plastics consumption per hour. Preform intrinsic viscosity (IV) too low: When preforms are underdried or overheated during injection their IV may drop significantly and they may blow off the stretch rod. PET (Polyethylene terephthalate) Typical Applications. 1. Price: $35. 2.

To excel, you need a good grasp of a wide range of concepts and data. ... Injection speed too fast Reduce speed to allow more uniform fill and pack . 4. Solutions. (Computer Hardware & Software, Husky Injection Molding Systems Ltd.'s new molding troubleshooting software: ProPet 2.0, Brief Article) by "Plastics Engineering"; Business Chemicals, plastics and … Injection molding machine's capacity is too small. 3. At present, GF-PET is used by most clients. PET injection molding parts are mostly used in the bottle preform products PET has a good rheological property in molten condition and pressure has Automotive (structural components such as mirror backs, and grille supports, electrical parts such as head lamp reflectors and alternator housings), electrical applications (motor housings, electrical connectors, relays, and switches, microwave oven interiors, etc. Although the raw material of PET plastic is a petrochemical material, at present bio-PET plastic is being developed. Thin upper and thick lower: contrary to the above. The moisture level must be below 0.04%. Drying. The GLS™ Injection Molding Guide provides in-depth information on part design, mold design and processing for styrenic block copolymer (SBC) thermoplastic elastomers (TPEs). PET (Polyethylene terephthalate) Typical Applications. That’s what this Injection Molding Reference Guide is all about. reduce preblow pressure, increase preblow pressure delay, move stretch rod switch closer to end of stretch rod or increase blow delay, readjust stretch rod, Injection 1 PLASTICS ENGINEERING COMPANY SHEBOYGAN, WISCONSIN 53082-0758 U.S.A 3518 LAKESHORE ROAD POST OFFICE BOX 758 PHONE 920 - 458 - 2121 F A X 920 - 458 - 1923 Philosophy of Troubleshooting Injection Molding Problems There is no "cure-all" for eliminating molding problems.

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