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tungsten carbide |
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tungsten carbide [′təŋ·stən ′kär‚bīd] (inorganic chemistry) WC A hard, gray powder; insoluble in water; readily attacked by nitric-hydrofluoric acid mixture; melts at 2780°C; used in tools, dies, ceramics, cermets, and wear-resistant mechanical parts, and as an abrasive. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Improved wear protection comes from brazing the tungsten carbide die-hole cylinders to each other instead of to the chrome die surface. The tungsten carbide wear tips, which are inserted at the bottom of the seed tube, prevent the double disk openers from wearing through the tip. To reduce premature tip wear, the BullsEye Seed Tube has embedded tungsten carbide tips at the points of contact between the tube and the double-disk openers. |
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