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 |
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成型質(zhì)量快檢表
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↑增加 ↓減少
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即時效應
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緩時效應
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背壓
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注塑壓力
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注塑速度
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開模速度
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填充壓力
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螺桿卸壓
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螺桿前進時間
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成型周期時間
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熔體溫度
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模具溫度
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噴嘴溫度
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氣泡/真空泡
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↑
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|
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↑
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↓
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↑
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↓
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↑
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改善排氣，擴大澆口及最小壁厚區(qū)域
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燒焦痕
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↓
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↓
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|
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↓
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↓
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改善排氣，澆口位置改變
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變色
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↓
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↓
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|
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↓
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↓
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↓
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過料筒，清洗螺桿，料筒，噴嘴
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頂出變形
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|
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↓
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↓
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檢查型腔面，改善脫模
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異常螺桿回退
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↑
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↑
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檢查螺桿磨損
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飛邊
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↓
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↓
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↓
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↓
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|
|
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↓
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↓
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模具需要整修，鎖模力太低
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流痕
|
|
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↓
|
|
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↑
|
|
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↑
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擴大澆口，改善排氣
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頂針頂穿
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↓
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↓
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↑
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模具冷卻差
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分層起皮
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↑
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↑
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↑
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↑
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↑
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原料污染，擴大澆口
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噴嘴流延
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↓
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↑
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|
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|
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↓
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↓
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使用倒斜角噴嘴
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制品粘模
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↓
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↓
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↓
|
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↓
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↑
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↓
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↓
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↑
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檢查型腔面損壞
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熔接痕強度低
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↑
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|
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↑
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|
|
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↑
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↑
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改善排氣，澆口位置改變，清洗排氣槽
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缺料
|
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↑
|
↑
|
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↑
|
|
↑
|
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↑
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↑
|
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擴大澆口，增加注塑量
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|
注塑量不穩(wěn)定
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|
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↑
|
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↑
|
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↑
|
|
|
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止回閥泄露
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收縮痕
|
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↑
|
|
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↑
|
|
↑
|
|
|
|
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擴大澆口
|
|
遲滯痕
|
|
|
↓
|
|
|
↓
|
|
|
↓
|
↑
|
↓
|
原料受潮
|
|
料柄粘模
|
|
|
|
|
↓
|
|
↓
|
|
|
|
↑
|
料柄套管損壞，增加斜角
|
|
表面玷污
|
|
↑
|
↑
|
|
↑
|
|
|
↑
|
|
↑
|
|
原料受潮
|
|
不熔粒子
|
↑
|
|
|
↑
|
|
|
|
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↑
|
|
|
檢查加熱器
|
|
翹曲
|
|
|
|
|
↑
|
|
↓
|
↑
|
|
↓
|
|
檢查冷卻管位置
|
|
白斑
|
↓
|
↑
|
↓
|
|
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↓
|
|
|
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↑
|
|
原料受潮
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