Shanghai Daoqin Plastics Co., Ltd.

         molding product appearance, dimensions, combined

        1, product surface 不允许 defect: material, 烧焦, 顶白, 白线, 披峰, 起泡, whitening on ejection (or 拉裂, 拉断), 烘印, 皱纹.

        2., 熔接痕: generally 圆形穿孔熔接痕 long degree large 于5mm, 异形穿孔熔接痕 long degree small 于15mm, 熔接痕 strong/high degree can through function safety testing.

        3, shrinkage: appearance obvious 处不允许 has shrinkage, obvious 处允许 has light micro sink marks (手感不 to 凹痕).

        4, generally small type product 平面不平 degree small 于0.3mm, has assembly requirements ensure assembly requirements.

        5, appearance obvious can has gas marks, material 花, product generally can has bubbles.

        6, product 几何形状, dimensions large small degree combined positive has mold opening 图纸(or 3D文 parts) requirements, product 公差需 according to 公差原则, type dimensions is negative 公差, type dimensions is positive 公差, has requirements requirements.

        7, product thick: product thick generally requirements to 平均壁 thick, non 平均壁 thick combined requirements, according to mold features to -0.1mm.

        8, product combined: housing/shell housing/shell combined —— surface small 于0.1mm, can has phenomenon, has combined requirements 孔, 轴, need ensure combined and use requirements.

         mold appearance

        1, mold inner 容完整, 字符清晰, 排列整齐.

        2, 铭牌应 solid in upper 靠近模 sheet/plate and 基准角 方. solid can 靠, easy 剥落.

        3, cooling water selection plastics block water 嘴, 顾客另 has requirements requirements.

        4, cooling water 嘴不应伸出模架 surface.

        5, cooling water processing 沉孔, 沉孔直径 is 25mm, 30mm, 35mm三 types specifications, 孔口倒角, 倒角应一致.

        6, cooling water has 进出标记.

        7, 标记英文字符 and 数字应 large 于5.

        8, in water positive lower 方10mm处, 字迹应清晰, 美观, 整齐, uniform.

        9, mold parts effect/influence mold and 存放. 安装时 lower has outer 露 油缸, water 嘴, 预复位 machine and other, has 支撑腿保护.

        10, 支撑腿 安装 application 螺钉穿 支撑腿 solid in upper, long 支撑腿 can use processing outer 螺纹柱子紧 solid in upper.

        11, mold ejection dimensions combined injection molding machine requirements, remove small type mold outer, can use in ejection.

        12, 定位圈应 solid can 靠, 圈直径 is 100mm, 250mm两 types, 定位圈 high sheet/plate 10~20mm. 顾客另 has requirements remove outer.

        13, mold outer dimensions combined injection molding machine requirements.

        14, has direction requirements mold in front sheet/plate or rear sheet/plate upper use 箭头标明安装 direction, 箭头旁应 has “UP”字样, and 文字均 is color, high is 50 mm.

        15, surface has 凹坑, 锈迹, more 余 吊 ring, water 汽, and other and effect/influence appearance defect.

        16, mold 应便于吊装, 运输, 吊装时不 拆卸 mold parts, ring and water 嘴, 油缸, 预复位杆 and other dry 涉.

         mold material and hardness

        1, mold 模架应 selection combined standards standards 模架.

        2, mold molding parts and system (type 芯, 动定模镶 block, active block, separation 流锥, 推杆, gate sleeve/set)材 material using/adopting property can high 于40Cr above material.

        3, molding for mold easy plastics 时, molding parts using/adopting corrosion resistant material made as, or its molding 面应采取 anti measures.

        4, mold molding parts hardness low 于50HRC, or surface hard 化处理 hardness high 于600HV.

        模出, 复位, 抽插芯, parts

        1, ejection 时应顺畅, 无卡滞, 无异常声响.

        2, surface light, 斜顶面 low type 芯面.

        3, sliding parts 应开设油槽, surface 需进行 nitrogen 化处理, rear surface hardness is HV700 above.

        4, has 顶杆应 has 止转定位, 每 顶杆都应进行编号.

        5, ejection application block 进行限位.

        6, elastic selection standards parts, elastic 簧两端不 打 abrasion, 割断.

        7, slip block, 抽芯应 has 行程限位, small slip block use elastic 簧限位, elastic 簧不便安装时 can use 波子螺 filament;油缸抽芯必 must has 行程开关.

        8, slip block generally using/adopting 斜导柱, 斜导柱角 degree ratio slip block 锁紧面角 degree small 2°-3°. slip block long using/adopting 油缸抽拔.

        9, 油缸抽芯 molding separation by 包覆时, 油缸应 add machine 构.

        10, slip block wide degree ultra- 150mm large slip block lower has wear resistant sheet/plate, wear resistant sheet/plate material selection T8A, hot rear hardness is HRC50-55, wear resistant sheet/plate ratio large high 出0.05-0.1 mm, made 油槽.

        11, 顶杆不应 upper lower 串动.

        12, upper add 倒钩, direction maintain 一致, easy from products upper remove.

        13, 顶杆孔 and 顶杆 配 combined 间隙, 封胶段 long degree, 顶杆孔 surface coarse degree related enterprise standards requirements.

        14, products has 利于操 as lower.

        15, products ejection easy 跟 斜顶走, upper add or 蚀纹.

        16, solid in upper block, solid can 靠, non molding separation processing 3°-5° 斜 degree, lower 部周边应倒角.

        17, upper 油路孔 inner iron material.

        18, 回程杆端面平整, 无点焊. 胚头底部无垫 sheet/slice, 点焊.

        19, sheet/plate gate sheet/plate toward sliding 顺利, gate sheet/plate easy 拉开.

        20, sheet/plate 模限位拉杆应布置 in mold direction 两侧, or in outer add sheet/plate, anti 止限位拉杆 and as dry 涉.

        21, gas 道应顺畅, liquid pressure ejection 复位应 to 位.

        22, sleeve/set 底部应开 made gas 口.

        23, 定位销安装不 can has 间隙.

         cooling, add hot system

        1, cooling or add hot system separation 畅通.

        2, 密封应 can 靠, system in 0.5MPa pressure lower has phenomenon, easy 于检修

        3, in upper 密封槽 dimensions and 形状应符 combined related standards requirements.

        4, 密封圈安放时应 coating 抹黄油, rear high 出模架面.

        5, water, runner sheet/slice using/adopting easy 受腐蚀 材 material.

        6, front rear using/adopting in water methods.

        浇注 system

        1, gate 设置应不 effect/influence product appearance, meet/satisfy product assembly.

        2, runner 截面, long degree design combined 理, in ensure formed quality front lower amount shrink short process/workflow, decrease/reduce 截面积以 shrink short filling and cooling time, meanwhile system loss consumption plastics most less.

        3, sheet/plate separation in front sheet/plate 背面 部 separation 截面应 is or semi 圆形.

        4, sheet/plate in gate sheet/plate upper has material, 浇道入口直径应 small 于3mm, 球头处 has gate sheet/plate deep 3mm 台阶.

        5, 球头拉 material can solid 定, can pressure in 定位圈 lower 面, can use 无头螺 filament solid 定, can use pressure sheet/plate pressure 住.

        6, gate, runner 应按图纸 dimensions requirements use machine processing, 不允许手工甩打 abrasion machine processing.

        7, gate 处应按 specification requirements.

        8, separation runner front has 一段延 long separation as is cold material 穴.

        9, material 杆Z形倒扣应 has slip 渡.

        10, separation type upper separation runner is 圆形, front rear can 错位.

        11, in material upper 潜伏式 gate surface shrinkage.

        12, transparent products cold material 穴直径, deep degree combined design standards.

        13, material easy remove, products appearance gate 痕迹, products assembly 处无残余 material.

        14, 弯勾潜伏式 gate, separation block nitrogen 化处理, surface hardness to HV700.

         molding separation, separation type 面, gas 槽

        1, front rear surface has 不平整, 凹坑, and other its it effect/influence appearance defect.

        2, block and frame combined, 四周圆角应 has small 于1mm 间隙.

        3, separation type maintain dry 净, 整洁, 无手提砂轮 abrasion 避空, 封胶部 separation 无凹陷.

        4, gas deep degree small plastics value.

        5, parts 研配应 to 位, 安放顺利, can 靠.

        6, block, and other can 靠定位 solid 定, parts has 止转, block lower 面不垫 copper sheet/slice, iron sheet/slice.

        7, 顶杆端面 and type 芯一致.

        8, front rear molding separation 无倒扣, and other defect.

        9, ejection 应顺利.

        10, more mold products, left right parts for 称, 应注明L or R, for and dimensions has requirements, combined requirements, generally in effect/influence appearance and assembly add upper, is 1/8.

        11, 模架锁紧面研配应 to 位, 75% above 面积碰 to.

        12, 顶杆应布置 in 离侧壁 relatively and 筋, 凸台 旁边, use relatively large 顶杆.

        13, for/regarding same parts 应注明编号1, 2, 3 and other.

        14, 各碰穿面, 插穿面, separation type 面应研配 to 位.

        15, separation type 面封胶部 separation combined design standards. in type below/following mold 10-20mm, large type mold 30-50mm, its separation machine processing 避空.

        16, and 喷砂应 uniform to requirements.

        17, appearance has requirements products, products upper 螺钉应 has anti shrink measures.

        18, deep degree ultra- 20mm 螺钉柱应 selection tube/pipe.

        19, products thick uniform, control in ±0.15mm below/following.

        20, wide degree in appearance thick separation 之六十 below/following.

        21, 斜顶, slip block upper 镶芯应 has can solid methods.

        22, front 模插入 rear or rear 模插入 front 模, 四周应 has 斜面锁紧并 machine processing 避空.

         injection molding production process

        1, mold in positive injection molding process conditions scope/range inner, tool has injection molding production stability property and process parameters can heavy property.

        2, mold injection molding production injection pressure, generally small injection molding machine most large injection pressure 85%.

        3, mold injection molding production injection speed degree, its separation 之三行程 injection speed degree low 于额定 most large injection speed degree 10% or ultra- 额定 most large injection speed degree 90%.

        4, mold injection molding production holding pressure pressure generally small 于实际 most large injection pressure 85%.

        5, mold injection molding production clamping force, small suitable machine type clamping force 90%.

        6, injection molding production process in, product and water material need easy, safety (time generally ultra- 2秒钟).

        7, belt/tape parts product mold, in production parts 安装方便, parts solid need can 靠.

         packaging, 运输

        1, mold type 腔应清理 dry anti 锈油.

        2, sliding parts coating lubricated 油.

        3, gate sleeve/set material application lubricated 脂封堵.

        4, mold 应安装锁模 sheet/slice, specifications combined design requirements.

        5, product parts easy loss parts full, has fine table/sheet and supply 商名称.

        6, mold water, liquid, gas, electrical export 应采取封口 measures anti material 进入.

        7, mold outer surface made paint, has requirements requirements.

        8, mold using/adopting anti 潮, anti water, anti 止磕碰 packaging, has requirements requirements.

        9, mold product 图纸, structure 图纸, cooling add hot system 图纸, hot runner 图纸, parts and mold material supply fine, use 说明书, mold trial report, testing combined 格证, electronics 文档均应齐 full.