Violet Tungsten Oxide Color Identification
- Category: Tungsten Information
- Published on 27 November 2017
Violet tungsten oxide, abbreviated as VTO, is named after the appearance of purple. It is the best raw material for the preparation of ultrafine or nanometer tungsten powder.
N-doped Tungsten Dioxide Vanadium Thin Films
- Category: Tungsten Information
- Published on 26 November 2017
Scientists discovered that VO2 has a distinctive phase change function long time ago. When the phase transition temperature is 68°C, it can change reversibly from low temperature monoclinic system to high temperature tetragonal system.
Machining Disadvantage
- Category: Tungsten Information
- Published on 26 November 2017
Tungsten carbide is a typical powder metallurgy product, which has a series of excellent properties. However, after sintering, the alloy has high hardness, brittleness, poor conductivity and difficulty in subsequent processing, which limits its application and development to a certain extent. Machining disadvantages of tungsten carbide machining are mainly as follows: strain sensitive processing, porosity and hard particles.
Influence Factor of Slip Forming
- Category: Tungsten Information
- Published on 26 November 2017
Powder sedimentation rate, water absorption rate, cast slurry viscosity and stability during slurry forming process are the most important factors which directly affect the quality of the casting. These parameters depend on the solid-liquid ratio, powder slurry pH, adding dispersant, adsorption gas powder etc. It is necessary to strictly control these factors in grouting process to ensure grouting quality.
Measure to Improve Green Strength
- Category: Tungsten Information
- Published on 26 November 2017
Means of presintering and the wax infiltration can increase the green strength. Through years of technological innovation, a variety of production processes have been developed, such as warm compaction process, high-speed compaction, etc.
Violet Tungsten Oxide for Making Ultrafine Tungsten Powder
- Category: Tungsten Information
- Published on 26 November 2017
What kind of tungsten oxide can produce high quality cemented carbide?
Mixed Tungsten Oxide Pressing Tungsten Plate
- Category: Tungsten Information
- Published on 26 November 2017
Tungsten plate is a tungsten material pressed by special process, it is mainly used in electronics and semiconductor industry parts manufacturing, tungsten sputtering target, high temperature furnace with tungsten boat, sapphire long furnace components etc.
Cutting-Tool Wear in The Green Process
- Category: Tungsten Information
- Published on 23 November 2017
The cutting-tool wear exists in the green process, if not controlled will seriously affect the processing performance of the tungsten carbide. At the same time, the cutting-tool wear, the average width of damage and surface finish are the three main parts of the green processing performance of tungsten carbide.
Green Machine Work of Tungsten Carbide
- Category: Tungsten Information
- Published on 23 November 2017
The appearance of the common tungsten carbide products prepared by hard sintering process is limited, and the hardness of the parts is high while the brittleness is great. Therefore, the subsequent processing of cemented carbide parts mainly adopts mechanical grinding and special processing, of which the cost is high. Machine work on the green before sintering can well solve the problem of limited size, simple form and high cost, expanding the scope of application of tungsten carbide.
Typical Tungsten Carbide Cutting Technology
- Category: Tungsten Information
- Published on 23 November 2017
For the cutting technology of tungsten carbide, the control of cutting condition is very important. The choice of different green parts, processing technology of sintered parts and the cutting tool determines the different optimal cutting parameters. For the processing of green parts, the high cutting speed can be adopted because the cutting speed has little effect on the surface finish and the edge breakage width.
