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injection molding overview
何谓 injection molding parts molding injection molding parts molding (Injection Molding) is 指, will already add hot melt 化 材 material 喷射注入 to injection molding parts mold inner, cooling and solid rear, to formed product methods. suitable for amount and complex product and other formed processing field/area. 1. injection shot formed engineering is below/following large 顺序执行: clamping injection shot holding pressure cooling mold opening product heavy 复执行 this type of as process/workflow, can production products. 2. injection molding parts molding machine injection molding parts molding machine can separation is clamping plant/unit and injection plant/unit. clamping plant/unit is injection molding parts mold 以执行 demolding (eject) as 业, but also has 如图 示 肘杆 methods, and utilizing pressure 缸直接开闭 injection molding parts mold pressure methods. injection plant/unit is will resin add hot melt rear again injection molding parts mold inner. 此时, need screw, 并如图 示 let to material resin in screw front 端(称之 is amount ), versus 当于 需 resin amount 行程储藏 rear again injection shot. 当 resin in injection molding parts mold inner flow 时, control screw speed degree ( injection shot speed degree ), in filling resin rear use pressure ( holding pressure force )进行 control. to screw or injection shot pressure 时, from speed degree control formed pressure control. 3. injection molding parts mold injection molding parts mold (Mold) is 指, is will material resin formed certain types 形状, use injection shot resin metal made type. although has 图示记载, 但实际 upper has several 空孔, use temperature water, 油, add hot device and other temperature degree tube/pipe 理. already solvent understanding material is from gate injection molding parts mold inner, again runner and runner filling to inner. lower 则经由 cooling engineering and mold opening molding machine demolding upper injection molding parts mold demolding sheet/plate, ejection formed product. 4. formed product formed product is 由流入 melt resin gate, 导入模槽 runner and product 部份 构 formed. due to one-time formed as can as product, therefore efficiency high. can utilizing runner 连结数 模槽, can meanwhile formed product. 此时, 当各模槽 runner long degree meanwhile, method meanwhile filling resin, but also large separation dimensions, appearance, material property different, therefore usually will runner design formed same long degree. 5. use material formed product in gate and runner belongs to product. therefore separation by waste 弃, powder rear again degree used as formed specialized material, this is material. material can mono as is formed specialized use, usually is combined pelletizing can use. due to formed engineering, therefore can let resin various features 变化. material formulation ratio/proportion upper is 30% left right, formulation ratio/proportion high has can can loss to resin has property 质. use material 时, 请参阅 resin data recycled features. 6. formed conditions formed conditions is 指, is obtain formed product, utilizing molding machine molding temperature degree, injection shot speed degree, injection molding parts mold temperature degree and other combined formed setting conditions. due to can obtain formed product appearance, dimensions, machine material property formed conditions 而异, therefore need most formed conditions, must 仰赖熟练 technology and experience.
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