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Cemented carbide products prices have been raised
The reason for the current increase in the prices of cemented carbide products is still the continued rise in the prices of the main raw materials tungsten and cobalt. According to reports, most of the mines were forced to stop production or rectification due to the tightening of the implementation of environmental protection policies by the country last year, and the supply of mineral resources such as tungsten, molybdenum, and rare earths. The majority of mines are still shut down. At the same time, because China supplies about 80% of the world's tungsten raw materials, the reduction in output has led to the reversal of the market's supply and demand relationship, which has changed from a seller's market to a buyer's market.
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What is the difference between cemented carbide and tungsten steel?
Tungsten steel: 18% alloy steel containing tungsten in the finished product. Tungsten steel is classified as cemented carbide, also called tungsten titanium alloy. The hardness is 10K Vickers, second only to diamonds. Because of this, the products of tungsten steel (the most common ones are tungsten steel watches) have the characteristics of not being easily worn. Commonly used on lathe tools, impact drill bits, glass cutter bits, and ceramic tile cutters, they are strong and not afraid of annealing, but they are brittle.
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2020
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Classification and application of common cemented carbide
Commonly used hard alloys are divided into three categories according to their composition and performance characteristics: tungsten-cobalt, tungsten-titanium-cobalt, and tungsten-titanium-tantalum (niobium). The most widely used in production are tungsten-cobalt and tungsten-titanium-cobalt cemented carbides.
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2020
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Carbide mechanical properties?
As an industrial tooth, cemented carbide uses one or more refractory metal carbides (WC, TiC, etc.) as the hard phase, and transition metal (Co, etc.) as the bonding phase, and is produced by powder metallurgy technology. Multi-phase materials. For cutting carbide tools, commonly used carbides are WC, TiC, TaC, NbC, etc., and commonly used bonding phases are Co, Ni, Fe, etc. The strength of cemented carbide mainly depends on the bonding phase Carbide has the advantages of high strength, high hardness, wear resistance, corrosion resistance, high temperature resistance, small linear expansion coefficient, etc. It is widely used in many industrial production and processing operations and is one of the most excellent tool materials.
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2020
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What is the development history of cemented carbide waterjet?
What is the cemented carbide waterjet The nozzle of the waterjet is made of cemented carbide, sapphire and other materials. The diameter of the nozzle is only 0.05 mm, and the inner wall of the hole is smooth and flat, can withstand the pressure of 1700 MPa, so the high pressure water jet Cut the material like a knife. Some water is also added with some long-chain polymers, such as polyethylene oxide, which increases the viscosity of the water" and makes the sprayed water look like a "thin line"
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2020
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Process and technical requirements of carbide valve processing
A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in the piping and equipment to flow or stop and can control its flow. The application range of the valve is very wide. Wide so it is particularly important for the carbide processing of the valve.
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