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Hardide Coating Reduces Friction Parts Replacement

United Kingdom-based Hardide Ltd., has launched Hardide, a gas-phase process coating technology.The environmentally sound process is the first low-temperature, super-hard coating that uniformly coats out-of-sight surfaces such as valves, bearings and extrusion dies, according to the company.Based on a tungsten carbide composition, Hardide includes the following characteristics: a wear factor between 40 and 100 times less than that for case-hardened steel; low dry-friction coefficient from 0.1 to 0.2; and porosity of less than 0.04 percent.Hardide has a high resistance to corrosion, and is inert to melt aluminum and other metals at high temperatures. The coatings slippery, low-friction surface reduces wear, in turn reducing shutdown time needed to replace parts, according to Hardide.

November 2001




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