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Blue tungsten oxide for transparent thermal insulation window film can be used to prepare tungsten powder — hydrogen reduction of blue tungsten oxide to prepare tungsten powder. And some scholars have studied the effect of H2/WO3-x ratio and reduction temperature on the particle size of tungsten powder. It is found that the effect of the reduction temperature on the particle size of tungsten powder is quite obvious if the speed is 1.4r/min, the inclination angle is 1.6°, and the reduction…

Blue nano tungsten oxide for transparent thermal insulation window film can be used in hydrogen reduction to prepare tungsten powder, wherein the process needs to be carried out in a rotary furnace. So, how does the rotary furnace work? The working principle of the rotary furnace during the preparing process of blue tungsten oxide by hydrogen reduction method is shown as below: At a certain inclination angle, the rotary furnace tube rotates, the scraper in the furnace slides the material…

Dark blue nano tungsten oxide for transparent thermal insulation window film can be used for hydrogen reduction in a rotary reduction furnace to prepare tungsten powder. According to the flow form of the furnace charge, the reduction can be divided into static reduction method and dynamic reduction method. Therefore, there are currently two types of reduction furnace, i.e. propulsion reduction furnace (static reduction) and rotary reduction furnace (dynamic reduction). Nevertheless, the process of the reduction of blue tungsten oxide by…

Blue tungsten oxide nanopowder for transparent thermal insulation film is mostly produced by adopting static reduction method in the current industrial production as the relationship between the process parameters and the particle size of tungsten powder is quite clear. As you may have known, the static reduction is one of the ways divided according to the flow pattern of materials, and the other way is dynamic reduction. Certainly, the dynamic reduction of rotary reduction furnace is also generally valued as…

Blue tungsten oxide nano powder may be used not only for the preparation of transparent thermal insulation film, which is widely used in the heat insulation fields of architectural window glass and automobile window glass, and can also be used in the preparation of tungsten powder by hydrogen reduction method. Some scholars have studied the relationship between the process parameters of blue tungsten oxide reduction process and the particle size of tungsten powder in industrial rotary reduction furnace, and analyzed…

Nano grain size blue tungsten oxide for transparent thermal insulation film is the most widely used raw material in the production of tungsten carbide powder. And blue tungsten oxide powder is usually prepared by weak hydrogen reduction using ammonium paratungstate (APT) as a raw material. The blue tungsten oxide powder obtained maintains the pseudomorphic morphology of the raw material APT. The main phase components of blue tungsten oxide are WO3 and WO2.90, and some blue tungsten oxide powders also have…

Ammonium paratungstate has a great influence on the performance of nano blue tungsten oxide for transparent thermal insulation film. And the physical properties of nano grain size blue tungsten oxide powder have a great effect on the properties of tungsten powder and tungsten carbide powder. Therefore, special treatment of ammonium paratungstate is needed for preparing high quality tungsten carbide powder. The special treatment is mainly conducted before or after calcination of ammonium paratungstate. Some scholars have carried out related experiments…

Transparent thermal insulation film may be prepared by using blue tungsten oxide powder as raw material. And therefore, such material can be used in window glass of building and automobile where requiring high transparency and high ultrviolet shielding rate. While as you may have known blue tungsten oxide can be used in a rotary kiln in hydrogen reduction process to produce tungsten powder. The raw material required for the process is blue tungsten oxide, the FSSS particle size is (11-14)μm,…

Blue tungsten oxide powder for producing transparent thermal insulation film is formed by polymerizing crystal grains. However, some of the crystals of blue tungsten oxide powder are affected by the calcination atmosphere, so that they are also intercalated with violet tungsten oxide crystal grains or other crystal grains of tungsten oxides in addition to blue tungsten oxide crystal grains. After the blue tungsten oxide was ground and dispersed, it was observed by transmission electron microscopy. And it was found that,…

Blue tungsten oxide for transparent thermal insulation film’s morphology can be observed by conducting a transmission electron microscope experiment. In order to better observe the morphology of blue tungsten oxide crystals, the researchers selected two methods for preparing TEM samples, and compared the morphology images of samples prepared by the two methods. The following are discussing the two methods. 1.0 Grind the blue tungsten oxide agglomerate, disperse the agglomerates, and prepare a sample by using a carbon coating. The morphology…