模具设计外文翻译--注塑成型(9)

enough injection pressure and holding pressure. Can meet these requirements of injection equipment mainly have piston type, plunger -- screw, screw, etc. Note: Injection action program: Nozzle forward - injection - pressure-keeping - plastic shrinkage furnace-rough pour gets back - cooling furnace-rough furnace-rough nozzle open mold - ejection - back needle - open closed - shut the mould - nozzle forward Injection molding machine operation projects: injection molding machine operation project including control keyboard, electric contorol operation and hydraulic system operating three aspects. Separately injection process action, charging action, injection pressure and injection velocity, ejector type selection, nitrogen-treated barrel paragraphs temperature and current and voltage monitoring, injection pressure and back pressure adjustment, etc

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