Tungsten

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Impact Resistance of Tungsten Cemented Carbide Balls 30

I. Impact Resistance of Tungsten Cemented Carbide Balls Tungsten cemented carbide balls are made from a carbide matrix such as tungsten carbide (WC) or titanium carbide (TiC), sintered with a binder such as cobalt (Co), nickel (Ni), or molybdenum (Mo). Their impact resistance is primarily reflected in the following aspects: 1. Synergistic Effect of High Hardness and High Density Tungsten cemented carbide balls typically have a hardness of ≥90.5 HRA and a density of approximately 14.9 g/cm3. Their high density…

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Thermal Stability and Applications of Tungsten Cemented Carbide Balls 32

Tungsten cemented carbide balls are high-performance powder metallurgy products. They are primarily composed of tungsten carbide (WC), a high-hardness, refractory metal, with cobalt (Co), nickel (Ni), or molybdenum (Mo) as a binder, and are sintered in a vacuum furnace or hydrogen reduction furnace. Common series include YG, YN, YT, and YW. This material is highly valued for its excellent hardness, wear resistance, and corrosion resistance, while thermal stability is one of its core advantages in high-temperature environments. I. Thermal Stability…

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Fatigue Resistance of Tungsten Cemented Carbide Balls 21

Tungsten cemented carbide balls exhibit excellent fatigue resistance, which is significantly affected by composition, processing, and operating conditions. A high binder phase content, nickel-chromium additions, and optimized processing significantly enhance fatigue resistance, making them suitable for long-term stable operation under high-load, complex environments. I. Advantages of Tungsten Cemented Carbide Balls Fatigue Resistance 1. High Fatigue Stability: Tungsten cemented carbide balls are made from a matrix of micron-sized metal carbides such as tungsten carbide (WC) and titanium carbide (TiC), sintered with…

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Compressive Strength of Tungsten Cemented Carbide Balls 22

The compressive strength of tungsten cemented carbide balls is their ability to resist failure under compressive loads and is a key indicator for evaluating their performance. 1. Material Properties of tungsten Cemented Carbide Balls Carbide is primarily composed of tungsten carbide (WC) and a metal binder such as cobalt (Co). Its compressive strength is generally much higher than its tensile strength. Compressive strength generally ranges from 2000-4000 MPa, depending on the composition ratio, grain size, and manufacturing process. For example:…

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High-Temperature Resistance of Tungsten Cemented Carbide Balls 31

Tungsten cemented carbide balls are primarily composed of tungsten carbide (WC) powder as the main component, with metals such as cobalt (Co), nickel (Ni), or molybdenum (Mo) as binders, manufactured through powder metallurgy processes such as vacuum sintering. This composite material, due to its unique microstructure, performs exceptionally well in high-temperature environments, effectively resisting thermal deformation and oxidation. It is widely used in high-temperature and high-pressure applications such as the petroleum, chemical, and aerospace industries. 1. High-Temperature Resistance Mechanism and…

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Corrosion Resistance Mechanism of Tungsten Cemented Carbide Balls 31

Tungsten cemented carbide balls use carbides (such as WC, TiC) as hard phase and metal binders (such as Co, Ni) as bonding phase. Their corrosion resistance mechanism comes from the chemical inertness of the hard phase, the optimization of the corrosion resistance of the bonding phase and the synergistic inhibition. I. Chemical Inertness of the Hard Phase: Corrosion Barrier WC particles possess extremely high chemical stability and virtually no reaction in most corrosive environments (such as acidic, neutral, and weakly…

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Corrosion Resistance of Tungsten Cemented Carbide Balls 23

Tungsten cemented carbide balls are precision spherical products manufactured through a powder metallurgy process using tungsten carbide (WC) powder as the primary component and a metal binder such as cobalt (Co), nickel (Ni), or molybdenum (Mo). Common grades include the YG, YN, YT, and YW series. This material is renowned for its high hardness (typically ≥90.5 HRA) and high density (approximately 14.9 g/cm3). Its excellent corrosion resistance makes it particularly suitable for use in harsh chemical environments, such as oil…

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Wear Resistance Test of Tungsten Cemented Carbide Balls 25

The wear resistance test of tungsten cemented carbide balls is an important means to evaluate their wear resistance under specific working conditions. It is often used in oil drilling, mining machinery, cutting tools and other fields. 1. Common wear resistance test methods Wear resistance test usually measures wear amount, wear rate or surface morphology change by simulating the friction and wear process in actual use. The following are several main methods: (1) Linear reciprocating friction test Principle: By applying a…

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Wear Resistance of Tungsten Cemented Carbide Balls 28

Tungsten cemented carbide balls possess exceptional wear resistance, tens to hundreds of times greater than that of traditional steel balls. They can operate stably and long-term under harsh conditions such as high loads, high speeds, and severe corrosion, significantly reducing equipment wear and maintenance costs. I. Data Supporting Tungsten Cemented Carbide Balls Wear Resistance 1. Hardness Tungsten cemented carbide balls generally have a hardness of ≥90.5 HRA (Rockwell hardness), approaching that of diamond (100 HRA) and far exceeding that of…

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Friction Coefficient of Tungsten Cemented Carbide Balls 22

The friction coefficient of tungsten cemented carbide balls depends on the contact material, surface roughness, lubrication conditions, and environmental factors (such as temperature and humidity). The following is an overview of the friction coefficient of tungsten cemented carbide balls: I. Friction Coefficient Range of Tungsten Cemented Carbide Balls 1. Dry Friction (Unlubricated): The static friction coefficient of carbide against carbide or carbide against steel is typically in the range of 0.3 to 0.6. The dynamic friction coefficient is slightly lower,…

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