1 specification and structure of solar vacuum tube

From the domestic solar products, solar vacuum tube is more diverse. Common solar vacuum tube diameter in 4 of the 7 mm, 5 8 mm, solar vacuum tube length is 1 - 2 m, 1.5 m, 1.6 m, 1.8 m, 1.9 m, 2.0m, 2.1 m, 2.2 m, single quality 0.6 k g to 2.8 k g ranging: but all of the solar vacuum tube structure is basically the same, as shown in Figure 1.

2 types of solar vacuum tube products

2.1 the polyethylene foam (E P E) as buffer material polyethylene foam (E P E) is a kind of low density. High borosilicate glass tube; 2. The vacuum layer; 3. Solar absorbing coatings; 4. High borosilicate glass tube; 5. Support and inspiration.

Figure 1 solar vacuum tube structure diagram, semi hard, obturator structure and good weather resistance materials, it is non-toxic, corrosion resistance, water resistance, deformation and conforms to the environmental protection, and other characteristics (as shown in Figure 2), has gradually

Other E S (such as P), which is widely used as a buffer material, has become a widely used packaging buffer material. P E E is a new type of high buffering and anti shock capacity. It is flexible, light and rich.

Flexibility and other characteristics, can be bent to absorb and disperse the impact force of external impact, in order to achieve the effect of the buffer, thereby

To overcome the ordinary styrofoam brittle deformation, recovery etc. E p e density is small, have a certain robustness; softness and buffer is good, subject to repeated impact the properties remain unchanged; low thermal conductivity, excellent heat insulation performance; almost no water absorption of fireproof material, with strong buoyancy; is not affected by a variety of climatic conditions.

Superior performance: there is a very good shock, the sound insulation is cut off, running, laminating, vacuum forming, compression

Convenient and excellent processing performance. 2.2 using P S E foam as inner package cushioning P S E foam is expandable polystyrene as shown in Figure 3. As the raw material, can be made of foam products, different shapes, produce various

The thickness of the foam sheet, is a kind of widely used cushioning material products. Although it has the characteristics of good cushioning performance, low cost and simple production process, its waste can not be degraded naturally, and it is difficult to recover 5 to form a serious white pollution.