Review of die lip buildup in plastics extrusion
Review of die lip buildup in plastics extrusion
复制标题
塑料挤出中模唇堆积的回顾
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
A. J. Giacomin
中科院分区：
文献类型：
--
作者：
Jesse D. Gander;A. J. Giacomin
模唇积料，也称为板出、模头滴落、或模头剥离，是指挤出模头开口面上不需要的材料积聚。由于这种材料的堆积会干扰挤出，因此必须定期关闭加工线以清洁模具。这些关闭是昂贵的。模唇堆积的机理尚不清楚，尽管有各种各样的解释。抑制这个问题的方法已经通过试验而发展出来了。我们的文献回顾表明，有许多机制在发挥模唇建设。对于一个特定的工业问题，可能只有几个问题重要，但哪个问题重要呢？在这里，我们使用量纲分析，以制定一个统一的方法，模具流口水的问题。
Die lip buildup, also called plate-out, die drrool, die drip, or die peel, refers to the unwanted material accumulation on the open faces of extrusion dies. Since this buildup of material can interfere with extrusion, the processing line must be shut down periodically to clean the die. These shutdowns are costly. The mechanism for die lip buildup is not understood, though there are a variety of proposed explanations. Ways to suppress the problem have been developed by trial. Our review of the literature suggests that there are many mechanisms at play in die lip buildup. For a given industrial problem only a few may matter, but which? Here we use a dimensional analysis to develop a unified approach to die drool problems.