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Selective pre-fluxing with adhesives: fashion or progress - Paint fluxing: pros and cons

机译:选择性用粘合剂预涂助焊剂:时尚还是进步-涂料助焊剂:利弊

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摘要

Over the last 15 years, selective pre-fluxing - also called paint fluxing or binder-based fluxing - has evolved as an alternative method for applying flux powder. There are many activities in the aluminium brazing industry to define process parameters of fluxing with adhesives. The first part of this presentation outlines key features of pre-fluxing. The methodology for measurements of physical characteristics of binders and paint flux mixtures are described. General rules for behaviour of flux paints in brazing process are discussed together with some examples of flux paint features. In the second part a case study is shown to illustrate common challenges when brazing with flux paint. The last part of this presentation provides a cost comparison as guidance for chosing the right fluxing method for a particular given case.
机译:在过去的15年中,选择性的预熔剂(也称为涂料熔剂或基于粘合剂的熔剂)已经发展成为一种使用熔剂粉末的替代方法。铝钎焊工业中有许多活动来定义用粘合剂助焊剂的工艺参数。本演示文稿的第一部分概述了预焊的主要功能。描述了用于测量粘合剂和涂料助焊剂混合物的物理特性的方法。讨论了助焊剂在钎焊过程中行为的一般规则,并列举了一些助焊剂特性的示例。在第二部分中,案例研究显示了使用助焊剂钎焊时的常见挑战。本演示文稿的最后一部分提供了成本比较,以指导在特定情况下选择正确的助焊剂方法。

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