Introduction of the process flow of wave soldering machine
Author:Fu Xia Time:2021-06-07 10:16 Browse(108)
Wave soldering process introduction, touch screen and OLED Forum
0 A# v0 |( N! N       Wave soldering refers to that the molten solder (lead tin alloy) is sprayed by electric pump or electromagnetic pump to form the solder wave required by the design. It can also be formed by injecting nitrogen into the solder pool, so that the printed circuit board with components in advance can pass the solder wave to realize the mechanical and electrical connection between the component solder end or lead pin and the printed circuit board pad. There are many kinds of wave soldering systems according to the different geometric shapes of wave crests used by the machine& G( M+ e. s: O7 g7 R7 I# w( W2 u7 N, f7 ~1 P! h$ s       Wave soldering process: insert the component into the corresponding component hole → precoat flux → pre dry → wave soldering → cut off the redundant plug-in pin → check. With the enhancement of people's awareness of environmental protection, wave soldering has a new welding process. In the past, tin lead alloy was used, but lead is a heavy metal, which is harmful to human body. So now there's the lead process. It uses * Sn Ag Cu alloy * and special flux, and requires higher welding temperature, higher preheating temperature. In addition, a cooling area workstation should be set up after the PCB passes through the welding area. This is to prevent thermal shock. On the other hand, if there is ICT, it will affect the detection.3 [1 i& f- v' C6 p$ c0 [0 ~7 {* f! Y。。。

Introduction of the process flow of wave soldering machine

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