Dongguan Haofu Electronic Technology Co. LTD
customer service

      4000220595

sales hotline

      13790497808

Complaint QQ

      1417149027

How to weld a light touch switch?

2020-06-05 16:25:30 admin7 3

As we all know, the application field of light touch switch is very wide. Its use makes our life more intelligent and convenient.The light touch switch is generally welded on the PCB board, so how is the light touch switch welded? Guangdong Xingkun technology here to give you a brief introduction to the welding method of the light touch switch.

As we all know, the application field of light touch switch is very wide. Its use makes our life more intelligent and convenient.The light touch switch is generally welded on the PCB board, so how is the light touch switch welded? Guangdong Xingkun technology here to give you a brief introduction to the welding method of the light touch switch.

There are three welding methods for touch switch: wave soldering, reflow soldering and manual soldering.

1. Wave soldering

Wave soldering is used for plug-in class electronic welding, welding equipment for wave welding machine, the commonly used three zones, temperature range of temperature range of 6, 8, 10 zones and 12 zones, in the wave soldering temperature does not exceed more than 240 degrees c / 2 seconds or 235 degrees c / 5 seconds, this kind of welding method has the advantage of low price, save time and effort, the disadvantage is that the PCB is more and more close and electronic components is more and more small, even in solder joint between bridge and the possibility of short circuit and therefore increase.

2. Reflow soldering

Reflow soldering of electronic components used in patch class welding, welding equipment for reflow welding machine, divided into preheating zone, heat preservation zone, reflow welding zone and cooling zone, reflow soldering does not exceed 270 degrees c / 2 seconds or 260 degrees c / 5 seconds, the advantage of this method is easy to control temperature, welding process can avoid oxidation, the manufacturing cost is also easier to control, defect is also produces in the process of welding heat solder side, the situation appeared in the preheating and the main heating two occasions, when the preheating temperature is within the scope of the decades to one hundred, as one component of solder solvent will flow out from the lower viscosity,If the outflow trend is strong, it will simultaneously extrude the solder particles out of the welding area containing gold particles, if it cannot return to the welding area during the melting, it will also form a retained solder ball.