Tungsten

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Main Applications of Tungsten Carbide Balls 31

Tungsten Carbide Balls are widely used in a variety of fields due to their high hardness, wear resistance, corrosion resistance, and high strength. The following are their main applications: 1. Bearings and Valves: They are used in precision bearings, ball bearings, and valve balls, providing high wear resistance and low friction, suitable for high-temperature, high-pressure, or corrosive environments. Examples include precision components in petrochemical and aerospace equipment. 2. Industrial Nozzles and Seals: They are used in nozzles (such as sandblasting…

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Common Uses of Tungsten Carbide Balls 33

Tungsten carbide balls are spherical products made through a powder metallurgy process, using a high-hardness metal carbide matrix such as tungsten carbide (WC) and a metal binder such as cobalt (Co). Their core properties include high hardness, high wear resistance, high compressive strength, corrosion resistance, and good dimensional stability. The following are common uses and specific application scenarios: I. Precision Machinery and Bearings 1. High-Precision Bearings: Tungsten carbide balls, as core components of ball bearings, are used in mechanical transmission…

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Applications of Tungsten Cemented Carbide Balls 35

Due to their excellent physical and chemical properties, tungsten cemented carbide balls are widely used in applications requiring high wear resistance, precision, and corrosion resistance, particularly in industry, manufacturing, energy, and precision instrumentation. The following are key application areas: 1. Industrial Valves and Pumps Tungsten cemented carbide balls are commonly used in sealing components for ball valves, check valves, and control valves. Their wear and corrosion resistance allows them to maintain long-term stability in high-pressure, high-temperature, or corrosive fluid environments.…

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Environmental Adaptability of Tungsten Carbide Balls 32

Tungsten Carbide Balls are made from a matrix of high-hardness, refractory metal carbides (such as WC and TiC), with binders such as cobalt and nickel added, and sintered using a powder metallurgy process. Their environmental adaptability is particularly outstanding under extreme operating conditions, as demonstrated in the following dimensions: 1. Extreme Temperature Tolerance High-Temperature Stability: Tungsten carbide balls can withstand long-term use in environments exceeding 400°C, retaining their hardness better than steel balls. For example, in oil drilling, they function…

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Toughness of Tungsten Cemented Carbide Balls 33

Tungsten cemented carbide balls are spherical materials made by sintering powder metallurgy with tungsten carbide (WC) as the hard phase and cobalt (Co), nickel (Ni), or molybdenum (Mo) as the binder phase. Their toughness performance is influenced by the composition, processing, and microstructure, requiring a comprehensive analysis from the perspectives of impact toughness and fracture toughness. I. Toughness Performance Indicators of Tungsten Cemented Carbide Balls 1. Impact Toughness Impact toughness reflects a material’s ability to resist damage under impact loads…

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Strength of Tungsten Cemented Carbide Balls 32

Due to their high hardness, high wear resistance, high compressive strength, and excellent bending resistance, tungsten cemented carbide balls are widely used in key applications such as high-load precision bearings, oilfield valve ball seals, and high-temperature mold components. Their strength characteristics stem from the combined effects of material composition, microstructure, and process control, as analyzed below: I. The Determining Role of Material Composition and Microstructure on Strength 1. Strengthening Effect of Tungsten Carbide (WC) Grains WC grains are the “skeleton”…

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Mechanical Properties of Tungsten Cemented Carbide Balls 35

Tungsten cemented carbide balls are characterized by high hardness, high compressive strength, moderate flexural strength, low impact toughness, and excellent wear and corrosion resistance. This comprehensive combination of mechanical properties makes them an ideal material for high-load, harsh working conditions. 1. Hardness: Ultra-High Hardness, Excellent Wear Resistance Value Range: Tungsten cemented carbide balls typically have a hardness of ≥90.5 HRA (Rockwell A Scale), with some products reaching HRC 80-90 (Vickers hardness approximately 1800-2200 HV), far exceeding high-speed steel (HRA 82-87)…

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Oxidation Resistance of Tungsten Cemented Carbide Balls 34

The excellent oxidation resistance of tungsten cemented carbide balls is primarily due to their material properties and optimized composition. 1. Material Properties Lay the Foundation for Oxidation Resistance Tungsten cemented carbide balls are manufactured through a powder metallurgy process, using a high-hardness ceramic phase such as tungsten carbide (WC) as a skeleton and a metal such as cobalt (Co) as a binder phase. This structure provides the following oxidation resistance advantages: 1. High-Temperature Stability The WC ceramic phase has a…

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Chemical Stability of Tungsten Cemented Carbide Balls 30

The excellent chemical stability of tungsten cemented carbide balls stems primarily from their unique material composition and powder metallurgy process, as demonstrated below: 1. The Material Basis for the Chemical Stability of Tungsten Cemented Carbide Balls Tungsten cemented carbide balls are based on high-hardness, refractory metal carbides (such as tungsten carbide (WC) and titanium carbide (TiC). These carbides are inherently extremely chemically inert and, at room temperature, do not react with common acids and bases such as water, hydrochloric acid,…

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Test Methods for Impact Resistance of Tungsten Cemented Carbide Balls 30

The impact resistance test of tungsten cemented carbide balls is an important method to evaluate their ability to resist damage when subjected to external force impact, and is usually used to test the strength, toughness and durability of tungsten cemented carbide balls. The test methods for impact resistance of tungsten cemented carbide balls mainly include the following: 1. Drop ball impact test: Equipment: Drop ball impact tester Principle: A steel ball or tungsten cemented carbide ball of specified mass is…

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