COMMON INJECTION DEFECTS AND THE REASON ANALYSIS Molding Machine, Molding Phenomena Inferior Sample Mold, Material Condition 現象 不良樣本 模具,材料 啤塑條件 High Injection Pressure No Mold Align or Lack of Contact of Burr 披鋒Parting Surface 披鋒 啤塑壓力高 模具不對中或分型面接 Lack of Clamping Force Excessively Large Projected Area of 鎖模力不足 Excessive Supply of Molding Material Mold Cavity 型腔投影面積太大 熔料過多 Low Resin Viscosity During Molding High Resin Temperature 啤塑期間溶料粘度低 料溫過高 Long Holding Time of Injection Pressure 保壓時間太短 Low Injection Pressure Excessively High or Uneven Mold Sink Marks Temperature 縮水 啤塑壓力偏低 Short Holding time of Injection 模具溫度過高或不穩定 Pressure Small Gate 縮水保壓時間太短 水口偏小 Slow Injection Speed Existence of Resistance Due to Narrow Runner and Sprue 啤塑時間太慢 Small Supply Amount of Molding 流道,分流道狹窄而引起的阻力 Materials Thick Section is Provided in the Cavity 熔料不足 收縮處截面偏厚 High Resin Temperature High Resin Shrinkage Ratio 熔料溫度高 村料收縮率高 Inferior Plasticizing Low Mold Temperature Silver Streaks and 塑化不良 模具溫度低 Spray Resin is Overheated and Resolved Lack of venting 銀紋,marks 熔料過熱分解 排氣不良 料花銀紋,料花 Excessively High Injection Speed Incorrect Gate placement 啤塑壓力過高,啤塑速度太快 水口位置不當 Excessively High Injection Pressure and Inferior Cavity Design Injection Speed is Too Fast 模腔干燥不合理 啤塑壓力過高,蜱塑速度太快 Insufficient Resin Drying Air Inside Screw (Lack of Back 膠料干燥不充分 Pressure and Compression) 啤塑螺杆中有空氣 Temperature Too Low and Lack of Mold Temperature Too Low flow Fluidity Marks 模具溫度太低 流動紋/走水溫度太低,流動性差 Improper Mold Cooling 流動紋Slow Injection Speed 紋 模具冷卻不合理 啤塑速度 Resin Does Not Flow Well Excessively Small Nozzle 熔料流動性差 噴嘴過小 Injection Holding Pressure Too Low 保壓壓力太低 ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- -----------------------------------------------------------------------------------------------------------------------------
----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- Phenomena Inferior Sample 現象 不良樣本 oudy, Appearance 色澤陰暗 色澤陰暗Poor Weld Lines 夾水紋 夾水紋Void 凹孔 凹孔Molding Machine, Molding Mold, Material Condition 模具,材料 啤塑條件 Uneven Melting of Partially Excessively High or Excessively Low Overheated Resin Mold Temperature 料溫太低,流動性差 過高或過低的模具溫度 Cold Nozzle Excessively Small Gate, Runner and 噴嘴溫度低 Excessively High or low Injection Sprue 過小的水口,流道,分流道 Speed 過高或過低的注射速度 Water and Oil Adhering to Mold Surface Overheated Resolution of Resin 模具表面粘有水和油 熔度過熱分解 Insufficient Resin Drying 膠料干燥不充分 Volatile Amount of Lubricant for Resin 膠料潤滑濟易揮發 Resin Temperature Too Low and Lack Path from Gate to Welded Section is Too of Fluidity Long 料溫太低,流動性差 水口距熔接區路徑太長 Low Injection Pressure Mold Temperature Too Low 啤塑壓力低 模具溫度太低 Slow Injection Speed 注塑速度慢 Improper Position and Number of Gates Cold Nozzle 水口得置,數量不合理 噴嘴溫度低 Insufficient Resin Drying 膠料干燥不充分 Resin Does Not Flow Well 熔料流動性差 Low Injection pressure Inferior venting 注射壓力低 排氣不良 Lack of Injection Holding Pressure Inferior Cavity Design (Thick Sections and Drastic Thickness Changes) 保壓壓力不足 Excessively High of Low Injection 型腔設計不合理(壁太厚及壁厚突變) Speed Improper Gate Position 注射溫度過高或過低 水口位置不合理 Short Holding Time Excessively Small Gate, Runner and Sprue 保壓時間短 水口,流道,分流道過小 High Material Shrinkage Ratio 膠料收縮率太高 ----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- -----------------------------------------------------------------------------------------------------------------------------
----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- REDO Z Molding Machine, Molding Mold, Material Condition 模具,材料 啤塑條件 Resin Partially Overheated Due to Grease and Oil Adhering to Mold Cavity Residue in the Cylinder and Others 型腔有油脂 由于料筒或其他部件中的殘余膠料,Overheated and Resolved Resin Due to Friction at the Gate Section 使膠料局部過熱 由于在水口處摩摩擦引起膠料過熱分Inferior Nozzle Attachment 噴嘴在料筒中持續時間長 解 High Injection Speed Inferior Exhaust 啤塑速度高 排氣不良 Long Holding Time of Materials Excessive Solvent 膠料在料筒中持續時間長 色粉過多 High Cylinder Temperature and Injection Pressure 料筒溫度過高,啤塑壓力太高 Injection Pressure Too High Excessively Wide Gate 啤塑溫度太高 水口太寬 Low Resin Temperature and Lack of Mold Temperature Too Low Fluidity 模具溫度太低 膠料溫度低,流動性差 Inferior Adhering of Parts Injection Holding Pressure Too High 熔接不良 保壓壓力太高 Inferior Cavity Design Holding Pressure Time Too Long 型腔設計不合理 保村時間太長 Improper Annealing 退火不當 Injection Pressure Too High Inferior Mold Releasing 注射壓力太高 模具開啟不良 Injection Holding Pressure Too High Improper Ejection 保壓壓力太高 頂出機構不合理 Holding Pressure Time Too Long Uneven Cooling, Insufficient Cooling 保壓時間太長 冷卻不穩定,不充分 Resin Temperature Too High Mold Temperature Too High 注射溫度太高 模具溫度太高 Slow Injection Speed Improper Annealing 注射速度太慢 退火不當 Injection Pressure Too High Molded Products Adhere to the Mold Due to Insufficient Cooling 注射壓力太高 冷卻不充分引起啤件粘模 Injection Holding Pressure Too High Mold Temperature Too High 保壓壓力太高 模具溫度太高 Holding Pressure Time Too Long Nozzle Hole is Larger Than Sprue Hole 保壓時間太長 噴嘴孔比流道孔大 Excessive Material Supply Excessively Small Sprue and Taper 膠料過多 Resin Temperature Too High and Section, Inferior Finish 流道及脫模斜度不足,表面光潔度低 Excessive Fluidity Improper Ejection 膠料溫度太高,流動性太大 頂出機構不合理 Excessively Small R in Mold Cavity, Phenomena Inferior Sample 現象 不良樣本 Black Streaks Burn Marks 黑條紋,燒焦 黑條紋,燒焦Crazing and Cracking 裂紋 裂紋Warpage 拗曲 拗曲Part Sticking 粘模 裂紋INSERTCODE----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- -----------------------------------------------------------------------------------------------------------------------------
----------------------------精品word文档 值得下载 值得拥有---------------------------------------------- Lack of Taper, inferior Finish 訓型腔圓角R小 Phenomena Inferior Sample 現象 不良樣本 Jetting 射紋 射紋Short Shot 射膠不足 走水不齊 應充滿射膠不齊 Molding Machine, Molding Mold, Material Condition 模具,材料 啤塑條件 Excessively Cooled Nozzle Inferior Gate Position 噴嘴過冷 水口位置不當 Excessively Low Resin Temperature Inferior Gate Size 料溫過低 水口尺寸不當 Excessively Late Injection Speed Excessively Thick Molded Products 啤塑速度過緩 啤件太厚 Low Mold Temperature 模具溫度太低 Lack of Molding Machine Injection Inferior Gate Balance Capacity 水口不平衡 啤塑機啤塑容量不足 Insufficient Vent Lack of Material Supplying Amount 排氣不良 料量不足 Excessively Small Gate, Runner and Injection Pressure too Low Sprue 注射壓力太低 水口,分流道,流道過小 Low Resin Temperature, Lack of Low Mold Temperature Fluidity 模具溫度低 熔料溫度低,流動性差 Clogged With Cold Slugs Slow Injection Speed 冷料塊阻塞走水通道 啤塑速度慢 Resin Does Not Flow Well Resistance is Produced at the Nozzle 熔料流動性差 Section and head loss is High 噴嘴產生阻力,水壓損失大
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