注塑调机技巧与原理的-赫倍热流道.ppt

昆山赫倍热流道有限公司 注塑机调试及原理 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 成型四大要素 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 塑膠成型加工原理 塑膠成型是利用塑膠原料受熱后成為熔融狀態流體,利用注射成型機油壓系統之壓力.流量,將熔融之塑膠註射入預先設計好的緊閉模腔內,經過冷卻后所得到的制品的過程. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 成型條件介紹 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 成型條件介紹 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 成型條件介紹 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 塑膠成型加工工藝 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 周邊設備介紹 热流道 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 成型不良術語介紹 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 燒焦(Burn Mark) 現象 模腔內氣體(空氣或瓦斯氣)無法排出於包風位置產生燒焦現象。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 燒焦(Burn Mark) 排氣不良 塑料本身氣體 含量過多 降低射速 爭取氣體 排出時間 兩段式鎖模 先低壓排氣 再高壓鎖模 分割模仁增 加排氣槽 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 脫模不順 現象 產品脫模時，頂穿或不能平衡頂出的現象。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 短射(Short Shot) 現象 融膠射入模穴中，產品某區域無法完全充填，因而產生填料不足之現象。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 短射(Short Shot) 主因(一) 產品肉厚不均，造成薄區流動遲滯。嚴重時造成短射。 解決方案 設計時儘量將肉厚均勻化 主因(二) 多模穴中各穴流動不平衡。 解決方案 採平衡流道設計 利用模流