OVEN RACK HAVING INTEGRAL LUBRICIOUS, DRY PORCELAIN SURFACE

摘要

A lubricious porcelain coated steel wire oven rack. The preferred coated steel wire oven rack includes a plurality of elongated steel wire members joined together to form an oven rack having an outer surface. The plurality of elongated steel wire members are made from a cold drawn steel rod material containing from about 80 to about 99.9% by weight of iron, up to about 0.08% by weight of carbon and from about 0.001 to about 0.2% by weight of a carbon stabilizing transition metal, preferably selected from the group consisting of Vanadium, Tantalum, Titanium and Niobium, hi a preferred embodiment, the porcelain surface of the oven rack includes a dry lubricant selected from carbon; graphite; boron nitride; cubic boron nitride; molybdenum (IV) sulfide; molybdenum disulfide; molybdenum sulfide; molybdenum (W) selenide; molybdenum selenide; tungsten (FV) sulfide; tungsten disulfide; tungsten sulfide; silicon nitride (Si3N4); TiN; TiC; TiCN; TiO2; TiAlN; CrN; SiC; diamond-like carbon; tungsten carbide (WC); zirconium oxide (ZrO2); zirconium oxide and 0.1 to 40 weight % aluminum oxide; alumina-zirconia; antimony; antimony oxide; antimony trioxide; and mixtures thereof. The preferred dry refractory lubricant material is TiO2 having a particle size below about 105 µm, preferable less than 45 µm, and having an aspect ratio less than 2:1, preferably about 1 :1, incorporated into the lubricious porcelain coating in an amount of about 0.5% to about 10% by weight of the porcelain coating composition, preferably about 2% to about 5% by weight, and more preferably about 3% by weight.