Choosing the Right Tungsten Carbide Ball Material for Aggressive Environments
Tungsten carbide is a homogenous mixture of tungsten carbide grains in a binder matrix, with cobalt being the most commonly used binder matrix. The tungsten carbide grains are fused into a solid matrix of cobalt metals under extreme heat and pressure in a process called sintering. There are many different grades of tungsten carbide balls available, making it possible to provide carbide balls that are tailored for most any application. In general, a higher percentage of cobalt will provide a tougher but softer grade while a lower percentage of cobalt will provide a harder but less tough grade.
The hardness of tungsten carbide ball is evidenced by the fact that it is commonly used for tools used to cut steel and other materials, and for armor piercing ammunition. Its abrasion resistance and resistance to shock are both excellent. Tungsten carbide balls are also practically inert so it is able to resist corrosion in nearly any environment. But it should be noted that bases with a pH below 4 have a tendency to attack the binder. Tungsten carbide ball is also one of the most costly ball materials.
Naturally, tungsten carbide balls are used in applications where extreme hardness and wear resistance are required. Tungsten carbide balls are used in heavy machinery applications because of their wear resistance and strength. They are frequently used in the down-hole tool industry for hard banding, which refers to covering the outer surface of the lower portion of a tool with a wear material to enhance its life. Other common applications for tungsten carbide balls include ball screws, bearings, valves, flow meters, pivots, detents and tips.
For example, tungsten carbide balls are often used as tips for ballpoint pens and instruments used to test the hardness of materials.
How Tungsten Carbide Balls are Manufactured?
Summarized Manufacturing Process of Tungsten Carbide Ball:
- - Pulverizing as formula
- - Mixing
- - Satin extrude
- - Granulating
- - Pressing
- - Molding
- - Vacuum Sintering
- - Rough Grinding
- - Fine grinding
- - Clean
- - Polish as per the client’s preferences
- - Inspection
- - Packing and warehousing
Features of Tungsten Carbide Balls
Tungsten carbide ball feature high hardness, wear resistance, rust free and anti bending. They can directly replace any application of steel ball. Usually, tungsten carbide balls are produced with a grade YG6 and with a hardness of HRA91.0 and density at 14.9g/cm3.
Generic Applications of Tungsten Carbide Balls
ITungsten carbide balls are widely used in many industrial applications such as precision bearings, instruments, meters, pend production, spraying machines, water pumps, machinery accessories, sealing valves, brake pumps, oil deposits, hydrochloric acid laboratory, hardness testers, fishing weights, weighting blocks, ornaments and precision machining.
Tungsten Carbide Ball’s Composition
Tungsten carbide balls are mainly composited with micron class carbide article powders such as WC, TiC with high hardness, and refractory performances, and binders phase like Co, Ni, or Mo, by means of sintering in vacuum or hydrogen reduction furnace. Now the common grades to produce tungsten carbide ball are YG, YN, YT and YW.
At WEISON, we have diversified diameters of tungsten carbide ball molds for a variety of sizes. According to vacuum furnace integrated and isostatic pressing, tungsten carbide ball’s performance has been largely strengthened. Our tungsten carbide balls have excellent quality and come with 100% non-porous. Samples are ready to deliver near you for testing! Don’t delay and order now!
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