Overview of Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder
Tungsten is a metallic element with the element symbol W and atomic number 74. It is located in the VIB group of the sixth period of the periodic table of elements. In nature, tungsten mainly exists in the form of hexavalent cations. Its ionic radius is small, it has strong polarization ability, and it is easy to form complex anions.
When preparing pure tungsten or tungsten alloy, the main methods include powder metallurgy, smelting (including electron beam melting, vacuum melting, plasma beam melting) and chemical vapor deposition.
Feature of Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder
The thermal expansion coefficient of tungsten is very low, only 4.5×10^-6 m/mK, so it has good thermal stability. These properties make tungsten widely used in manufacturing high-temperature components and reliable heat detectors.
(Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder)
Parameters of Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder
Tungsten carbide cobalt-chrome alloy (WC-Co-Cr) with the chemical composition WC10Co4Cr HVOF (High Velocity Oxygen Fuel) powder typically has the following parameters:
1. Chemical Composition:
– Tungsten Carbide (WC): 10% by weight
– Cobalt (Co): 4% by weight
– Chrome (Cr): The remaining balance, usually around 86% (since WC is 10% and Co is 4%, that leaves approximately 86% for Cr)
– Additional elements: May also contain small amounts of niobium (Nb), titanium (Ti), or molybdenum (Mo) for improved wear resistance and strength.
2. Particle Size Distribution (PSD):
– Widely available in various sizes, typically ranging from submicron to several micrometers for better control over coating properties. Common particle size specifications include 325 mesh (45 microns), 600 mesh (74 microns), or 1000 mesh (150 microns).
3. Shape:
– Mostly in spherical or irregular shapes, which promote uniform distribution during the manufacturing process.
4. Density:
– Generally, WC-Co-Cr powders have a high density, around 14 to 16 g/cm³, contributing to the dense coatings produced by HVOF.
5. Hardness:
– Due to the high tungsten content, WC10Co4Cr has excellent hardness, typically HV1000 or higher, making it suitable for wear-resistant applications.
6. Thermal Conductivity:
– High thermal conductivity, which helps maintain efficient heating during the HVOF process and minimizes thermal stress on the substrate.
7. Melting Point:
– The melting point of WC-Co-Cr alloy is quite high, around 3692°C (6660°F), ensuring the formation of a strong bond with the substrate during deposition.
8. Processing Parameters for HVOF:
– Deposition Temperature: Typically in the range of 3000-4000°C (5432-7232°F).
– Pressure: Atmospheric pressure or slightly above.
– Oxygen Pressure: High, around 20-40 bar, for the generation of high-speed oxygen fuel jet.
– Particle Velocity: Very high, up to several thousand meters per second, which results in a fine and dense coating.
9. Application:
– Primarily used for wear-resistant coatings on cutting tools, dies, and other industrial components exposed to abrasive or erosive environments.
Please note that specific parameters may vary depending on the manufacturer and the desired properties of the final coating. It’s essential to consult the supplier for detailed information on the exact powder parameters.
(Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder)
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FAQ
Question: What are some common applications for Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder?
Answer: Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder are widely used in cutting tools, drilling tools, high-speed steel, carbide, electrode materials, lighting equipment, aerospace, nuclear industry and other fields.
Question: What is tungsten alloy?
Answer: Tungsten alloy is an alloy composed of tungsten as a base and other elements added. It has the characteristics of high density, high hardness, good corrosion resistance and thermal stability. It is often used to make radiation shielding materials, counterweights, etc.
Question: Why is tungsten filament used in light bulbs?
Answer: Tungsten wire has a high melting point and excellent electrical conductivity, and can maintain stable luminous performance at high temperatures, so it is often used to make filaments for incandescent light bulbs.
Question: What is the role of the tungsten electrode in TIG welding?
Answer: Tungsten electrode is used as an electrode in tungsten argon arc welding. It has high melting point, high thermal conductivity and high electron emission capability. It can stably generate arc and achieve high-quality welding.
Question: What is Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder? What are its uses?
Answer: Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder is a compound composed of tungsten and carbon and has extremely high hardness and wear resistance. It is commonly used in the manufacture of cutting tools, drill bits and wear-resistant parts.
Question: What are the applications of tungsten in aerospace?
Answer: Tungsten and its alloys are used in the aerospace field to manufacture rocket engine nozzles, missile structural components, etc. Because of their high temperature resistance and corrosion resistance, they can withstand extreme working environments.
Question: What is the mining and processing process for Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder?
Answer: Mining of Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder usually involves underground mining or open-pit mining. After the ore is crushed and ground, the tungsten is extracted through chemical or physical methods. The processing process includes steps such as smelting, powder preparation, molding and sintering.
Question: What impact does Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder have on the environment?
Answer: Waste water, waste gas and solid waste may be produced during the mining and processing of Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder, which will have a certain impact on the environment. Therefore, appropriate environmental protection measures need to be taken to reduce pollution.
Question: How to identify the authenticity of tungsten products?
Answer: The authenticity of tungsten products can be identified by observing the appearance of the product, measuring its physical properties (such as density, hardness), and conducting chemical composition analysis. It is recommended to choose formal channels and reputable brands when purchasing.
(Tungsten carbide cobalt chrome alloy WC10CO4CR HVOF Powder)
