Dealing with the jamming phenomenon of light touch switch
Release time：2019-04-23 Clicks： Click
In the light touch switch industry, if there is a stuck situation, how should we deal with the specific treatment methods we will give you a detailed introduction below.
Speaking of tapping the switch, I believe all the brothers in the electronics industry know it. The application, performance, parameters and price of this switch need not be explained too much. A good light touch switch manufacturer will not talk to you about the quality of the product at the time of talking with you, at least in praising here. If a factory insists on the quality of its products, what do I believe it must be worrying about? Customers usually care about the quality of the product, and to be honest, I also care about it. In the previous articles, we have introduced some ways of choosing and considering problems, which I think I will not say, you also understand.
Many customers responded that some of the lightly touched switches they bought outside were very useful. But when it comes to real mass production, the product is very unusual. So where do these anomalies come from? Many people don't understand, including the business of some manufacturers. Today we'll tell you in detail why the light switch is stuck.
In our production process, our switch is to be welded with PCB board. Welding methods are divided into wave soldering and reflow soldering. Wave soldering is a kind of soldering method used for direct connectors. The normal temperature is 230 degrees, and the time is 3 seconds. Reflow soldering is a kind of soldering method for direct patch components. Normally, it is used in stages. The temperature is generally controlled at 250 degrees, and the time is 3 seconds, and a process is 10 seconds. We've already talked about the blistering of the light switch, so I won't talk about it today. Common switches on the market use phosphorus-copper shrapnel imported from Korea. This product has been driven to smallpox on the Internet. The characteristics of phosphorus-copper shrapnel are low price, life can reach the standard. Simply speaking, it has a high performance-price ratio. The disadvantage is that when high temperature occurs, the change of radian of the shrapnel is relatively large, and the handle will become lighter. If there is flux inflow in the process of re-welding, it will be. Cause stuck death. The problem does not occur on a single product shrapnel. The sealing of the switch body is also very important. If the sealing of the switch body is not good, the product will have flux inflow in the welding process. Therefore, summary and analysis, the cause of light touch switch card death is these two points.