摘要:
A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.
摘要:
A slide bearing fashioned as a ball bearing or a roller bearing, wherein contact portions of a roll shaft and a bearing, and rolling elements are formed of a combination of a ceramic material and a solid lubricant material. The slide bearing is advantageously utilized in a continuous hot dipping apparatus in which ball bearings or roller bearings are used as bearings of a sink roll and guide rolls of the apparatus.
摘要:
A slide structure comprises a roll shaft and a roll bearing. A whole circumference of the roll shaft is made of a sintered ceramics body. A sliding surface of the roll bearing is constructed by inserting a cermet into a carbon-carbon reinforcing graphite member. A continuous hot dipping apparatus has a roll supported and rotated in a molten metal bath. A sliding surface of the roll shaft and the roll bearing employs the slide structure. The corrosion resistivity and the wearing resistivity can be improved and a long service life can be attained. The slide structure comprised of the roll shaft and the roll bearing can be smoothly rotated by decreasing the friction coefficient of the slide structure.
摘要:
A slide bearing fashioned as a ball bearing or a roller bearing, wherein contact portions of a roll shaft and a bearing, and rolling elements are formed of a combination of a ceramic material and a solid lubricant material. The slide bearing is advantageously utilized in a continuous hot dipping apparatus in which ball bearings or roller bearings are used as bearings of a sink roll and guide rolls of the apparatus.
摘要:
An aluminum nitride sintered body produced by sintering under pressure of a powder composition comprising aluminum nitride and 5 to 30% by weight of at least one sintering aid selected from the group consisting of Nd, Sm, Eu, Er, Dy, Gd, Pr and Yb, per 100% by weight of the powders of aluminum nitride and the sintering aid, wherein the amount of the sintering aid is a conversion value as oxides of the elements, the sintering body that has been subjected to mirror-polishing having a surface roughness R max of 0.2 μm or less and a thermal conductivity of 200 (W/mK) or more.
摘要翻译:一种氮化铝烧结体,其通过在包含氮化铝的粉末组合物和5-30重量%的至少一种选自由Nd,Sm,Eu,Er,Dy,Gd,Pr和 Yb,每100重量%的氮化铝粉末和烧结助剂,其中烧结助剂的量是作为元素的氧化物的转化值,已经经过镜面抛光的烧结体具有表面粗糙度 R max为0.2μm以下,热导率为200(W / mK)以上。