The service life of the silicone electric heater is related to the use time of the overall product, and it is also the most concerned issue of the merchants. However, most of the heater manufacturers do not understand the heating products and think that the low price does not necessarily lead to the bad quality, which leads to the appearance of the final product on the market. Quality and brand crisis, through the following points can confirm the quality of the heating line.
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1. Product temperature resistance performance. Common heating wires in the market are generally divided into silicone heating wires, PVC heating wires, and Teflon heating wires. In terms of temperature resistance, it is definitely the first choice for Teflon, but the expensive price makes buyers Unbearable. PVC materials are notoriously not resistant to high temperatures. Higher temperatures will cause the outer skin to melt. The biggest problem is that many manufacturers use recycled materials to produce, which makes materials that are not resistant to high temperatures more likely to melt. Therefore, PVC is definitely not optional. Silica gel is a common high-temperature insulation material. The outer skin is soft and elastic. The working temperature is between minus 60 degrees and 200 degrees. The price is cheap and cannot be produced with recycled materials. I recommend using it, but choose The right is in the hands of the customers. For those who only look at the price, I do not object to their use of PVC.
2. Bending performance, as the old saying goes, you get what you pay for. Good products cannot be separated from good materials. The selection of heating wire is the key to the life of the core. Although the common heating wire heating conductor materials in the market are also nickel-chromium, Constantan, copper-nickel alloy, etc., but the final material is still different. Products in any industry are good or bad. According to the UL standard, only heating wires with a bending test greater than 25000 times can meet the UL production technical standards. Of course Nine of the ten companies fail to meet the standards. Generally, the heating wire will be disconnected after 7,000 bending tests.
3. Appearance problem. The appearance of a good quality heating wire should be smooth and bright. Now many buyers will find that after buying the product, if they leave it at home for a period of time, they will find that there is a layer of white fur on the heating wire insulation layer, which is passed through silica gel. The heating film manufacturers learned that this original act of stealing materials, in order to reduce the process and reduce the cost, the electric heating film manufacturers often omit the most critical and troublesome process. Although it does not affect the use, it is spent after all. Money is uncomfortable.
