Hankook Tire brings nearly 20 tires such as its eco-friendly and comfortable high-performance tires to the 2010 Beijing Auto Show. Among them, the first Chinese-made Enfren H430, an eco-friendly, high-performance tire, attracts the most attention. President of Hankook Tire Co., Ltd. Chairman of China's headquarters Xu Qilie introduced that Enfren H430 is the latest research result of Hankook Tire's core technology concept “Kontrol” technology in terms of environmental performance, which can reduce tire rolling resistance by 21%, save fuel consumption by 2%, and drive emissions. The CO2 decreased by 4.1 grams per kilometer from the average product. This time, Hankook Tire exhibited two Enfren H430 series, one of which was imported tires, and the other was domestically produced new products that were unveiled for the first time. It is expected that the domestic Enfren H430 will be available in the middle of the year.

In addition, Xu Qilie also stated that the current production capacity of Hankook Tire's two factories in China is 30 million. From last year to this year, the export rate has dropped from 60% to 35%, and more products are supplied to the domestic market. It is expected that more than 2 million capacity will be added this year, and the construction of the third factory is also planned.

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P-n junction terminal voltage constitute a certain potential barrier, when the positive bias voltage drop time base, P and N the majority carrier diffusion to the other party.Due to the electron mobility is much bigger than hole mobility, so there will be a large number of electronic spreading P area, constitute of P area of minority carrier injection.These electrons and valence with hole composite, composite when the energy in the form of light energy to release out.This is the principle of PN junction glow.

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