International aluminum market increased by 22% year-on-year in January-February 2011

The aluminum market has increased by 22% over the same period of last year from January to February 2011. In January and February, the remaining amount of primary aluminum was 302,000 tons, compared with 247,000 tons in January and February 2010. In January and February 2011, the demand for primary aluminum was 6.460 million tons, which was 103,000 tons more than in 2010. In January 2010, primary aluminum consumption was 6.35.1 months and February aluminum output increased by 158,000 tons. In February 2011, the output of primary aluminum was 3354.3 tons and consumption was 3207.4 tons. At the end of February, the total inventory of aluminum was 3920,000 tons, which was equivalent to 63 days of demand. At the end of last year, it was 6.5 million tons. Compared with January and February 2010, global production capacity increased by 2.4% in January and February of this year. China's production capacity is 2588 tons, accounting for about 38% of the world's total production capacity. In 2010, China’s net imports were 390,000 tons.

Zinc Selenide CO2 Laser Lens

The transmission range of Zinc Selenide ZnSe-CVD is 0.5 - 20 µm.
ZnSe CVD used for high power CO2 laser optics at 10.6µm, for protective optics windows or optical elements in FLIR (forward looking infrared) thermal imaging equipment, optics for medical and industrial applications (optical plane parallel windows (plates, disks, blanks), wedged windows, optical meniscus, spherical and cylindrical lenses, prisms, resonator mirrors of CO2 laser).
The refractive index is near 2.4. Zinc Selenide has a very low absorbtion coefficient and is used extensively for high power infrared laser optic. It is non-hygroscopic.
Zinc Selenide (ZnSe) - transparent in wide spectral range from yellow (visible) to far IR. ZnSe material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined.

Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.

ZnSe coated curve ZnSe uncoated curve


ZNSE properties


Zinc Selenide Co2 Laser Lens,Zinc Selenide Focusing Lens,25.4Mm Znse Lens,Zinc Selenide Lens

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