Phosphoric Acid - Sulfuric Acid Decomposition Scheelite Flotation
- Category: Tungsten Information
- Published on 08 January 2018
At present, the scheelite flotation method in China is mainly used to treat scheelite with the treatment technology of alkali pressure boilding with wolframite. The process makes the scheelite effectively decomposed under the conditions of high alkali concentration, high alkali dosage and high temperature and high pressure, and the slag containing WO3 can be reduced to 1-3%.
Bismuth Excess Type Bismuth Tungstate Photocatalyst
- Category: Tungsten Information
- Published on 08 January 2018
In recent years, photocatalytic degradation technology has been paid much attention to environmental pollution control. Photocatalytic treatment of pesticide wastewater is considered an ideal method for energy consumption and effect. The tungstate photocatalyst is widely praised by people for its advantages of energy saving, high efficiency, easy operation, wide range of application, thorough degradation of pollutants and no secondary pollution.
Preparation of Tungsten Alumina Ceramic Heating Substrate
- Category: Tungsten Information
- Published on 07 January 2018
Ceramic heating substrate is a new generation of new heating element developed in recent years. Because it has the characteristics of environmental protection, high reliability and long life, it is replacing the commonly used PTC heating element containing lead. It has wide market prospect at home and abroad. Therefore, the research on the production technology of high temperature alumina ceramic heating substrate has been paid more and more attention.
Tungsten Copper Alloy Casting Method Preparation
- Category: Tungsten Information
- Published on 07 January 2018
Tungsten copper alloy composite material combines the advantages of two kinds of elements W and Cu, has low thermal expansion coefficient, good conductivity, good thermal conductivity and good arc erosion resistance, in mechanical processing, electrical engineering and electronic information field is widely used as electrical contact materials, electrode materials and electronic packaging materials.
One Step Reduction Method of Ultrafine Tungsten Carbide Powder
- Category: Tungsten Information
- Published on 07 January 2018
Ultrafine cemented carbide is a tool material developed in recent years, mainly based on ultrafine WC powder and adding appropriate binder and grain growth inhibitor to produce high hardness, high wear resistance and high toughness cemented carbide materials.
Proton Exchange Membrane Fuel Cell Tungsten Carbide / Platinum Composite Catalytic Material
- Category: Tungsten Information
- Published on 07 January 2018
Fuel cell is a proton exchange membrane fuel cell (PEMFC), which directly uses methanol water or hydrogen as fuel to generate electricity from the source. It has the characteristics of rapid start-up at low temperature, clean fuel and environmental protection, and simple structure of battery. It is an environmentally friendly and efficient new energy.
Re Strengthening of Cemented Carbide by Lanthanide Rare Earth
- Category: Tungsten Information
- Published on 07 January 2018
Tungsten cobalt cemented carbide has been widely used as cutting tool and die material because of its high hardness and high wear resistance. By reducing the size of WC grain in the alloy to the ultrafine crystal grade (1um ~ 300nm), the strength and wear resistance of WC/Co system cemented carbide can be greatly improved.
Cemented Carbide Porous Material Manufactured by Powder Sintering
- Category: Tungsten Information
- Published on 07 January 2018
Because of its excellent physical and mechanical properties, porous materials have great potential in many industrial fields, such as aerospace, chemical industry, medicine, energy and metallurgy. Porous materials including ordinary iron-based, copper, bronze, nickel base, titanium and stainless steel base, these materials are the biggest drawback is the corrosion resistance is relatively poor, and high temperature, and the system needs adding pore forming agent in the preparation process, it is difficult to control the quantity and size of pores.
Nano Tungsten Carbide / Carbon Composites and Their Preparation Methods
- Category: Tungsten Information
- Published on 06 January 2018
Nanocrystalline tungsten carbide has a catalytic activity similar to platinum, which is stable in physical and chemical properties and low in price. With the emphasis on clean energy, tungsten carbide has attracted widespread attention in the field of catalysis, such as direct methanol fuel cell, catalytic hydrogen evolution, super capacitor and catalytic desulfurization. In the field of electrochemistry, tungsten carbide as an anode catalyst has the advantage of not only having catalytic properties, but also difficult to be poisoned by carbon monoxide, such as platinum and palladium. Therefore, nano tungsten carbide as a catalyst can partly replace or to a certain extent save precious metals such as platinum, palladium and so on, and its application prospect is broad.
Nanocrystalline Synthetic Tungsten Copper Alloy
- Category: Tungsten Information
- Published on 06 January 2018
Tungsten copper composite is composed of tungsten and copper, which are not mutually soluble and intermetallic compounds do not form intermetallic monomers. They are generally called tungsten copper pseudo alloys. In large-scale integrated circuits and high-power microwave devices, tungsten copper alloy sheet has broad application prospects as an electronic packaging substrate, connectors, heat sink and microelectronic shell materials.

