Imtech Design Moldflow Analysis & Polymer Engineering solutions, operate the full suite of Moldflow flow simulation programs and software for injection molding product design advice and are able to analyses the smallest medical device to the largest car instrument panel quickly and efficiently to give you practical solutions to complex injection moulding problems for almost any type of plastic material on the database.

Imtech Design have offices in UK, USA and Australia. For more information Click Here

Imtech Design Ltd was founded to provide our consultancy clients with the most practical polymer solutions and service. Imtech is committed to the client and understanding markets they serve and the injection moulding technology required to help design for success and bring new products to market quickly and efficiently.

Imtech Design are Moldflow Silver Certified Plastic Flow Simulation Consultants and Engineers and are experts in Mpi filling, cooling and warpage analysis. Imtech Design web site provides usefull information on trouble shooting plastics moulds including free mould flow design advice for plastics professionals.

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Moldflow Plastic Adviser, Plastics Insight, Moldflow Mpi, Mold flow communicator and Mold Adviser are Mould flow software products for simulating the injection molding of plastic materials. Imtech use CAD Connectivity Tools to link structural CAD - CAE to MPI, MPA and MPX Community projects in the plastics and tool making industry.

Moldflow is the registered trademark Moldflow Corporation & Moldflow Europe ltd and Mold flow Plastics Labs as advised in the flow front magazine and trade publications.

A plastic is made up principally of a binder together with plasticizers, fillers, pigments, and other additives. The binder gives a plastic its main characteristics and usually its name. Thus, polyvinyl chloride is both the name of a binder and the name of a plastic into which it is made. Binders may be natural materials, e.g., cellulose derivatives, casein, or milk protein, but are more commonly synthetic resins. In either case, the binder materials consist of very long chainlike molecules called polymers. Cellulose derivatives are made from cellulose, a naturally occurring polymer; casein is also a naturally occurring polymer. Synthetic resins are polymerized, or built up, from small simple molecules called monomers. Plasticizers are added to a binder to increase flexibility and toughness. Fillers are added to improve particular properties, e.g., hardness or resistance to shock. Pigments are used to impart various colors. Virtually any desired color or shape and many combinations of the properties of hardness, durability, elasticity, and resistance to heat, cold, and acid can be obtained in a plastic.

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Common generic polymer names include: ABS, ABS GPS HIPS SAN ASA SBS PC PMMA PES PSU PUR FPVC RPVC PP PPO HDPE LDPE PA6 PA66 PA11 PA12 PBT PET POM POM PPS Acrylonitrile Butadiene Styrene Plating High Heat Polystyrene High Impact Polystyrene Styrene Acrylonitrile Acrylate Styrene Acrylonitrile Styrene Butadiene Polycarbonate Polymethyl Methacrylate Acrylic Polyethersulfone Polysulfone Polyurethane Flexible Polyvinyl Chloride Rigid polyvinyl Chloride Polypropylene Polyphenylene Oxide High Density Polyethlene Low Density Polyethlene Nylon 6 Nylon 66 Nylon 11 Nylon 12 Polybutylene Terephthalate Polyethylene Terephthalate Polyoxymethylene Homo Polyoxymethylene Copolymer Polyphenylene Sulphide

Styrene Acrylonitrile (SAN) & Acrylonitrile Styrene Acrylate (ASA)

Properties: Rigid, transparent, tough, resistant to grease, stress cracking and crazing, easily processed, resistant to food stains.

Applications: Drinking tumblers, hi-fi covers, lenses, water jugs and toothbrush handles, kitchen and picnic ware, radio dials, TV set screens, washing machine trims.

Fluoroplastics (PTFE – FEP)

Properties: Semi-rigid, translucent, exceptional low frictioin characteristics, superior chemical resistance, impervious to fungi or bacteria, high temperature stablilty (260'C), low temperature toughness (-160'C), good weathering resistance and electrical properties.

Applications: Non-stick coating, gaskets, packings, bearings, high and low temperature electrical and medical applications, laboratory equipment, pump parts, thread seal tape.

Polystyrene (High Impact - HIPS)

Properties: Hard, rigid, translucent, impact strength up to 7 x GPPS, other properties similar.

Applications: Yoghurt pots, refrigerator linings, vending cups, bathroom cabinets, toilet seats and tanks, closures, instrument control knobs.

Imtech's Injection Moulding Problem Solving guide indicates typical methods for fine tuning the plastic injection moulding machine to reduce the occurrence of common molding problems including:- Parts stick in the mould, Flash, Poor Weld Lines, Burn marks, Short Shots, Pit Marks, Surface Ripples, Sink Marks, Voids, Splay Marks / De-lamination, Discoloration, Warpage / Distortion, Brittleness, Nozzle drool, Incomplete melting of pellets.

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Common moulding simulation and calculation problems include: sink marks, air traps, air trap, weldline, moldflow examples, moldflow, weld as a line, weld line, weld lines

Plastic injection molding information in Chinese language from Imtech Design Click Here