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What are the selection factors of tap switch

Release time:2019-10-31    Clicks: Click

 
Touch the switch in the selection of what factors, specific methods we will give you a detailed introduction below.
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The key to the influencing factors of touch switch lies in the resolution of touch switch's handle, weldability, conduction reliability, protection, life, production skills and installation scale. Specifically, we divide the selection method of tap switch into the following four points:
The key to the influencing factors of touch switch lies in the resolution of touch switch's handle, weldability, conduction reliability, protection, life, production skills and installation scale. Specifically, we divide the selection method of tap switch into the following four points:
Touch the switch to choose method 1. Production skills, with parts, ultimately affect the quality is assembly skills. Assembly skills depend on the management ability of the production company, quality awareness of employees, quality assurance ability and other elements of the resolution. The final production quality will be different if they are not the same. The assembly methods of shopping malls include labor and machines. The cost of machine assembly is low but the production quality is low. Low cost and high quality of manual assembly. The fifth is factory inspection. The methods and items of factory inspection also affect the quality of touch switch after all.
The selection method of tap switch 2. Life and hand feeling are the cooperative resolutions of tap switch travel and shrapnel. The shorter the travel, the lighter the sound, the longer the travel. On the contrary, in the case of fixed shrapnel skills, it mainly depends on the travel or sound resolution of tap switch life. Secondly, the key element of the resolution of shrapnel life is stamping skills. Stamping skills of Japan and Taiwan are in China. Now it is very common, so in the case of skill improvement, whether the request for information is the decline of imported information. For example, the 160gf shrapnel life in the shopping mall is mainly four kinds of 50000 times (domestic phosphor copper or relatively backward stamping skills), 100000 times, and more than 200000 times (stainless steel).
The key factor affecting the reliability of touch switch is the structure of touch point, because the function of touch switch is touch point and shrapnel for touch conduction. The larger the touch surface of touch point, the better. The touch surface is determined by the structure. There are about three types of structures in the market, the order of good and bad is as follows: bubble (crater type) "O-type touch", slotted "2-point touch", flat bubble. Type "1 touch".
The selection method of tap switch is 4. It is the base material of the pin. The base material of the tap switch is brass or phosphor copper (the low grade is iron). In order to reduce the touch resistance, the pin is basically silver plated. The silver will be oxidized when encountering the SO2 gas in the air, which directly affects the solderability and touch resistance of the switch. Therefore, the high-quality tap switch should mainly focus on the silver plating thickness and silver plating skills of the base material of the pin. The operation is in place. The order of silver plating on the market is as follows:
Thickness of silver plating: more than 0.3um (back silver), 0.2um (thin silver), 0.1um (white plating).
Silver plating skills: whether there is protective agent treatment or whether the switch has dust-proof and water-proof function is very important after the substrate is pre plated with nickel and silver, copper and silver, and silver is directly plated on the substrate. Otherwise, even the best silver plating treatment, the switch will be oxidized.
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