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Something you should know about the tungsten carbide ball

Publication date:

2025-10-31

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The production of tungsten carbide balls It involves mixing tungsten powder and carbon powder in specific proportions that determine the nature and properties of the final product. Typically, the standard chemical composition of tungsten carbide is about 93% tungsten and 7% carbon to ensure the product's strength and hardness.

In actual production, this ratio can be adjusted, and other metal powders may be added to ensure the quality and performance of the final product. The exact proportion can be fine-tuned depending on the quality of the raw material, sintering conditions, and the desired properties. The dosage of the powders can vary to achieve optimal sintering results. For instance, YN6-grade tungsten carbide balls containing 6% CO, 92% WC, and 2% Ni exhibit superior corrosion resistance and serve as an excellent alternative to steel balls.

Insert the prepared raw materials into the ball mill in the specified proportions for mixing. If prolonged grinding is required, steel balls can be used inside the ball mill. The mixed powder is then placed into a mold and pressed at high pressure to achieve a spherical shape. This step is carried out on a cold press under extremely high pressure to ensure uniform compaction of the powder. Finally, the pressed spherical powder is sintered in a sintering furnace.

Sintered tungsten carbide spheres must be cooled slowly. During cooling, they may develop surface burrs, which should be removed through machining to achieve a uniform surface. After cooling and deburring, the tungsten carbide spheres undergo finishing machining, including grinding and polishing, to ensure a smooth, even surface—and thus attain the desired appearance and dimensional accuracy.

On the previous page:

Characteristics of tungsten-nickel-iron alloy products

Types of tungsten carbide rods

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