How to choose a good slide switch? Slide switch profile, slide switch analysis, slide switch series, slide switch classification, slide switch type, slide switch type, slide switch style, Costa slide switch KSDKG.COM/
Look at the housing material first. The main switch brands in the market generally use PC materials. PC materials are also called bulletproof rubber. The characteristics of impact resistance, high temperature resistance and non-discoloration are very important for controlling electrical switches. The better front panel and the back base are made of PC material, and the general switch will replace the PC material with black nylon material on the base, so the cost can be reduced a lot. Also using PC materials, many switch manufacturers use domestically produced products (even if the US GE is actually used by domestic cooperative factories, but only sold by GE), but currently there is no company in China that has the ability to produce PC materials, the so-called domestic production is generally reworked with recycled materials, so the impurities are relatively high, it will be very brittle, and the heat resistance is also obviously poor. Poor switches are used to reduce costs. The front panel may not be populated with PC material and replaced with mix or ABS. These materials are not only resistant to impact and heat, but also prone to discoloration and appear rough when the surface is touched. Secondly, the contact is the contact point of the conductive part during the switching process. The size of the contact depends on the size (the bigger the better), the second depends on the material.
There are currently three main types of contacts, silver-nickel alloy, silver-cadmium alloy and sterling silver.
Silver-nickel alloy is an ideal contact material at present, and its conductivity and hardness are relatively good, and it is not easy to oxidize and rust.
Silver-cadmium alloy contacts are also better in other aspects, but the cadmium is a heavy metal. On the one hand, it is harmful to the human body. On the other hand, the fusion with silver is not ideal. It will form small particles of cadmium metal on the surface of the contact, and conduct electricity. The arc may be pulled out. The contact of sterling silver is not suitable. The conductivity is good, but the texture of sterling silver is soft and it is easy to oxidize (like silver jewelry will turn black after a long time). The texture is soft, the toggle switch is deformed when the toggle switch is more; the oxidation performance is much worse when the oxidation is rusted, the rust point is also prone to heat, and the contact is easily burned.
The third look at the structure. Nowadays, it is mainly a large panel type, and the appearance and feel are better than the previous thumb type. The biggest problem with the thumb type is that it is easy to get stuck, because the torque is relatively short, the switching action is relatively small, and the spring is slightly softer or harder, which may cause the switch to get stuck. I saw Gray in the first two days (don't tell me that it is the country of rice, if it is the Martian, I have a so-called reset switch), try to feel violent, take a look inside is a small wheel, press Turn 1/4 turn at a time to reduce the inevitable friction and the top is covered with lubricant. Imagine that the lubricant is dry after half a year. How to use this switch? Choose the reminder of the toggle switch and the slide switch. 