选择性波峰焊焊接工艺介绍

选择性波峰焊(Selective Wave Soldering)是一种用于焊接电子组件的工艺。它适用于那些不适合传统波峰焊的电路板,例如有大量表面贴装元件(SMD)的复杂电路板。


以下是选择性波峰焊焊接工艺的步骤:


1. 准备工作:首先,确定要焊接的电路板上需要焊的区域。再把扫描后的PCB板图片导入系统,编辑好喷雾路径和焊接路径。


2. 预热:将电路板放置在选择性波峰焊机的传送带上,通过预热区域预热电路板,以使焊点达到适当的焊接温度。

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3. 流动波峰:在电路板上的预定区域移动波峰焊头。波峰焊头会释放出熔化的焊锡,形成一个波浪状焊接池。


4. 焊接:将需要焊接的电子组件精确地放入波浪焊接池中。池中的焊锡会将组件端子与电路板焊盘相连接。


5. 冷却和固化:在焊接完成后,电路板会经过冷却区域,以确保焊点的固化和稳定。


选择性波峰焊焊接工艺具有高效率、高精度和较少的热应力等优点。它适用于焊接密集的SMD元件和复杂的组装结构。然而,使用该工艺时,需要根据电路板的特性和设计要求进行适当的工艺参数设置,以确保焊接质量和可靠性。


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