Teach you how to identify the quality of the switc

2022-07-22
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1. The production of key switches is relatively simple, and the technical content is a little low, generally only a dozen dollars. Due to thin profits, there are fewer inferior products. The price of five hole socket, telephone and computer socket is expensive, which costs 80 or 90 yuan. Therefore, it is easy to buy inferior products. We should focus on the quality of these two sockets. 2. Look at the details. The details of the switch reflect the workmanship of the manufacturer. The panel of a good switch and the workmanship inside are the same inside and outside, there is no big difference

1. The production of key switches is relatively simple, and the technical content is a little low, generally only a dozen yuan. Due to thin profits, there are fewer inferior products

the price of five hole socket, telephone and computer socket is expensive, which costs 80 or 90 yuan. Therefore, it is easy to buy inferior products. We should focus on the quality of these two sockets

2. See details. The details of the switch reflect the workmanship of the manufacturer. The panel of a good switch and the workmanship inside are the same inside and outside, and there is no big difference. You can disassemble the panel and have a look

some brand switches have machine sprayed codes on the inner plate. These codes are clear and can be wiped by hand without ink marks

3. Switches with good materials use high-quality PC materials. This material not only has good flame retardancy, but also has good toughness. Hold the outer frame of the switch tightly with your hand. Although it is deformed, it will not crack. Poor materials will crack after denaturation due to brittleness

the copper sheet containing tin and phosphorus has the best strength, toughness and elasticity, so it is used as the spring sheet of switches and sockets for good switches. The copper of tin phosphorus alloy is dark red, which is easy to distinguish from bright yellow brass

silver has strong conductivity, low calorific value and good safety coefficient, so a layer of silver is added to the spring leaf of the good switch as the contact. The poor switch is only plated with a layer of silver, and the quality cannot be guaranteed

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