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Preparation of high purity tungsten

Preparation of high purity tungsten

(Summary description)The preparation methods of high-purity tungsten can be divided into powder metallurgy, melting and chemical vapor deposition.

Preparation of high purity tungsten

(Summary description)The preparation methods of high-purity tungsten can be divided into powder metallurgy, melting and chemical vapor deposition.

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The preparation methods of high-purity tungsten can be divided into powder metallurgy, melting and chemical vapor deposition.

high purity tungsten manufacturers


powder metallurgy
Powder metallurgy refers to the process in which tungsten powder is heated to a certain temperature below its melting point after being formed, and the densification process is completed through material migration, and finally tungsten blanks or some tungsten products with simple shapes can be obtained.
smelting method
The smelting method refers to the process of heating the tungsten raw material above its melting point to form a liquid phase, removing impurities and then cooling and solidifying to achieve densification. and plasma beam melting.
chemical vapor deposition
Chemical vapor deposition refers to the use of tungsten compound gas (generally WF6) as the tungsten source, which is reduced by H2 at a certain temperature, and the generated tungsten is deposited on a specific substrate. After the deposition is completed, the substrate material is removed to obtain a dense tungsten blank (or product) process.

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Compounds of Osmium
Compounds of Osmium
The chemical formula is OsO2, there are two crystal forms (1) The molecular weight is 222.20, it is an orange-brown crystal, and the relative density is 11.37 (21.4°C).
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The chemical formula is OsO2, there are two crystal forms (1) The molecular weight is 222.20, it is an orange-brown crystal, and the relative density is 11.37 (21.4°C).
Osmium can make crystal dials
Osmium can make crystal dials
Osmium is a chemical element with the chemical symbol Os, atomic number 76, and atomic weight 190.23 u. Osmium is a hard, brittle platinum-group transition metal with a distinctive bluish-white luster.
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Osmium is a chemical element with the chemical symbol Os, atomic number 76, and atomic weight 190.23 u. Osmium is a hard, brittle platinum-group transition metal with a distinctive bluish-white luster.
Osmium ingot manufacturers explain the chemical properties of osmium
Osmium ingot manufacturers explain the chemical properties of osmium
Osmium is the densest known metal element, with a density of 22.48g/cm3, a melting point of 3045°C, and a boiling point of over 5027°C. Hexagonal dense lattice.
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Osmium is the densest known metal element, with a density of 22.48g/cm3, a melting point of 3045°C, and a boiling point of over 5027°C. Hexagonal dense lattice.
Osmium ingot manufacturers explain the distribution of osmium deposits
Osmium ingot manufacturers explain the distribution of osmium deposits
Osmium is a platinum group element, which exists almost completely in elemental state and is highly dispersed in various ores.
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Osmium is a platinum group element, which exists almost completely in elemental state and is highly dispersed in various ores.
Osmium ingot manufacturers introduce the chemical properties of osmium
Osmium ingot manufacturers introduce the chemical properties of osmium
Reflective tin white with light blue. Reflectance: 67.5 (green light), 66 (orange light), 67 (red light). The double reflection of the plane parallel to the c-axis is clear.
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Reflective tin white with light blue. Reflectance: 67.5 (green light), 66 (orange light), 67 (red light). The double reflection of the plane parallel to the c-axis is clear.
Uses of Ruthenium
Uses of Ruthenium
The ability of ruthenium to exist in multiple oxidation states is an important property of this rare element and plays an important role in its applications.
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The ability of ruthenium to exist in multiple oxidation states is an important property of this rare element and plays an important role in its applications.
Application types of ruthenium and its compounds
Application types of ruthenium and its compounds
Rhodium-ruthenium alloy: a binary alloy containing ruthenium based on rhodium. The maximum solubility of ruthenium in rhodium is >20%, and the as-cast Vickers hardness of RhRu10 alloy is 1344.
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Rhodium-ruthenium alloy: a binary alloy containing ruthenium based on rhodium. The maximum solubility of ruthenium in rhodium is >20%, and the as-cast Vickers hardness of RhRu10 alloy is 1344.
The main method of preparing spherical tungsten powder in China
The main method of preparing spherical tungsten powder in China
Using the technology of secondary oxidation and reduction of tungsten powder, quasi-spherical tungsten powder can be obtained, and the manufacturing cost is low,
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Using the technology of secondary oxidation and reduction of tungsten powder, quasi-spherical tungsten powder can be obtained, and the manufacturing cost is low,
High-quality 3D printing spherical tungsten powder must have the following characteristics
High-quality 3D printing spherical tungsten powder must have the following characteristics
Metal powder is the cartridge of metal 3D printers, a raw material that is continuously consumed. The powder spreads evenly on the equipment substrate,
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Metal powder is the cartridge of metal 3D printers, a raw material that is continuously consumed. The powder spreads evenly on the equipment substrate,
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