【文章內(nèi)容簡(jiǎn)介】 nd demonstrate the programmable controllers and industrial control puters and DCS (Distributed Industrial Control System) technology, the development trend of convergence, although this is still a relatively young technology, but in its more e more and more application areas, it is increasingly demonstrating its potential for development can not be underestimated. For the injection molding machine, the current widespread application of the PLC control system, but as technology advances, personalized, customized products, growing demand for injection molding machine control requirements more plex, higher and higher precision, PCC as a more advanced control system, will gradually occupy a certain market share. On the other hand, for the future workbased production requirements, obviously, PCC control system more petitive edge, so we have reason to believe, PCC control system will be in the future take place in the field of injection molding machines. There are many types of materials that may be used in the injection molding process. Most polymers may be used, including all thermoplastics, some thermosets, and some elastomers. When these materials are used in the injection molding process, their raw form is usually small pellets or a fine powder. Also, colorants may be added in the process to control the color of the final part. The selection of a material for creating injection molded parts is not solely based upon the desired characteristics of the final part. While each material has different properties that will affect the strength and function of the final part, these properties also dictate the parameters used in processing these materials. Each material requires a different set of processing parameters in the injection molding process, including the injection temperature, injection pressure, mold temperature, ejection temperature, and cycle time. A parison of some monly used materials is shown below (Follow the links to search the material library). Material name Abbreviation Description Applications Acetal POM Strong, rigid, excellent fatigue resistance, excellent creep Bearings, cams, gears, handles, plumbing ponents, rollers, rotors, slide guides, resistance, chemical resistance, moisture resistance, naturally opaque white, low/medium cost valves Acrylic PMMA Rigid, brittle, scratch resistant, transparent, optical clarity, low/medium cost Display stands, knobs, lenses, light housings, panels, reflectors, signs, shelves, trays Acrylonitrile Butadiene Styrene ABS Strong, flexible, low mold shrinkage (tight tolerances), chemical resistance, electroplating capability, naturally opaque, Automotive (consoles, panels, trim, vents), boxes, gauges, housings, inhalors, toys low/medium cost Cellulose Acetate CA Tough, transparent, high cost Handles, eyeglass frames Polyamide 6 (Nylon) PA6 High strength, fatigue resistance, chemical resistance, low creep, low friction, almost opaque/white, medium/high cost Bearings, bushings, gears, rollers, wheels Polyamide 6/6 (Nylon) PA6/6 High strength, fatigue resistance, chemical resistance, low creep, low friction, almost opaque/white, medium/high cost Handles, levers, small housings, zip ties Polyamide 11+12 PA11+12 High strength, Air filters, (Nylon) fatigue resistance, chemical resistance, low creep, low friction, almost opaque to clear, very high cost eyeglass frames, safety masks Polycarbonate PC Very tough, temperature resistance, dimensional stability, transparent, high cost Automotive (panels, lenses, consoles), bottles, containers, housings, light covers, reflectors, safety helmets and shields Polyester Thermoplastic PBT, PET Rigid, heat resistance, chemical resistance, medium/high cost Automotive (filters, handles, pumps), bearings, cams, electrical ponents (connectors, sensors), gears, housings, rollers, switches, valves Polyether Sulphone PES Tough, very high chemical resistance, clear, very high cost Valves Polyetheretherketone PEEKEEK Strong, thermal stability, chemical resistance, abrasion resistance, low moisture absorption Aircraft ponents, electrical connectors, pump impellers, seals Polyetherimide PEI Heat resistance, flame resistance, transparent (amber color) Electrical ponents (connectors, boards, switches), covers, sheilds, surgical tools Polyethylene Low Density LDPE Lightweight, tough and flexible, excellent chemical resistance, Kitchenware, housings, covers, and containers natural waxy appearance, low cost Polyethylene High Density HDPE Tough and stiff, excellent chemical resistance, natural waxy appearance, low cost Chair seats, housings, covers, and containers Polyphenylene Oxide PPO Tough, heat resistance, flame resistance, dimensional stability, low water absorption, electroplating capability, high cost Automotive (housings, panels), electrical ponents, housings, plumbing ponents Polyphenylene Sulphide PPS Very high strength, heat resistance, brown, very high cost Bearings, covers, fuel system ponents, guides, switches, and shields Polypropylene PP Lightwei