According to Taiwan media reports, Taiwan University of Science and Technology recently announced that it has developed a solar glass material that can save 74% of air-conditioning energy. It is reported that this type of solar energy-saving glass combines power generation, high light transmission, radiation resistance, summer heat insulation, and winter heat preservation functions. The surface is more nano-treated and does not accumulate dirt, thus ensuring that the normal operation of solar power is not affected. The specific technical principles and effects are that through a high-efficiency reflective film technology, the thermal conductivity coefficient is reduced from 1.6 to 0.8, the radiant heat transmittance coefficient is reduced from 0.14 to 0.08, and the solar radiation blocking solar radiant heat energy enters the room, and the heat insulation effect doubles. . The power generation also increased from 70 W/m2 to 110 W/m2. Due to its highly insulating effect, the average room test saved an average of 74% of air-conditioning power consumption, and in the winter, it can save 30% of the power consumption of the heating room.
PVA sponge polishing wheel adopts special synthetic resin to enhance its wear resistance
And the grinding force, by the existence of special air hole, can quickly eliminate the dust, no packing and hair
Heat phenomenon, avoid heat burn workpiece, suitable for long time grinding work. The binder is soft and slow
Impact, no deep blemishes on the grinding surface.
Use of PVA grinding wheel :1. It is easy to heat up when using general sand flower and sand cloth
Used for grinding stainless steel, aluminum, copper, iron, wood, gemstone, marble, glass, graphite
Products, urea products and leather, etc. PVA sponge grinding wheel is the most suitable. In addition, it can be eliminated
Burr, dirt, rust, etc.
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Omitted number of projects. For example, all kinds of metal grinding, copper mixing cylinder (centerless polishing), watchcase,
Grinding of watchband, gemstone and marble before plating or polishing.
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Taiwan has developed solar glass that can save 74% of air-conditioning energy