摘要:
A heat conductivity from a heating body to a user's skin is improved to provide satisfactorily warm feeling to the skin of the user. A laminated heating body has a heating body and a cover sheet covering the heating body. The cover sheet defines at least one low temperature portion formed from a material having low heat conductivity and at least one high temperature portion formed from a material having high heat conductivity. The at least one low temperature portion and the at least one high temperature portion are formed separately on a surface of the cover sheet contacting with a user's skin.
摘要:
A method for using alkanolamine-carboxylic acid salts as a coating for friction materials which during use contact, at least part of the time, rustable metals. The method comprises contacting the friction material with an aqueous solution comprising at least about 0.05 weight alkanolamine-carboxylic acid salts being the reaction product of:(i) alkanolamine; and(ii) C.sub.4 -C.sub.20 carboxylic acid;and thereafter evaporating water from the aqueous coating on the friction material so as to leave the friction material with a coating comprising alkanolamine-carboxylic acid salts. Friction materials coated by above method are also claimed.
摘要:
Heat insulating materials having excellent heat resistance and durability prepared from glass-ceramic fibers composed chiefly of crystals, e.g., .beta.-spodumene and/or cordierite and containing 0.1 to 15% by weight of at least one metallic element capable of absorbing radiant heat energy, e.g., Cu, Co, Fe, Ni, Cr, Mn, Mg. The metallic element may be in the form of the metal or an oxide thereof and may be present as a film or coating on the fibers.
摘要:
A gasket with heat-insulating properties is provided for such uses as for mounting a carburetor on an internal-combustion-engine casting. A thick core of heat-insulating resin, such as phenolic resin, is sandwiched between two thin cutout sheets of resilient gasket material. The core provides the heat insulation, and the gasket material provides the resilience needed to assure sealing on rough surfaces. Heat-dissipating fins or the like may also be provided, as well as rings of heat-insulating material which can surround the bolts used to hold the carburetor in place. The core is molded to shape, while the gasket material may be cut out to shape and secured to it by a thermo-setting resin, such as a nitrile-rubber-phenolic-resin material.
摘要:
A diaphragm is disclosed for electrolytic cells, for example, chlor-alkali cells. The diaphragm is characterized in that it has been treated with a water-soluble silicate on the anolyte side. Also disclosed is an electrolytic cell process using such a diaphragm, and a method for preparing such a diaphragm.
摘要:
An engine component such as a cast iron engine exhaust manifold having an outer irregular-shaped surface is covered with an inorganic heat insulating layer preferably having a thermal conductivity in the range of from about 0.01 BTU/hr/ft/*F to 0.2 BTU/hr/ft/*F. An encapsulating, cast metal layer is formed over the insulating layer so that when hot fluids within the manifold reach temperatures of up to 2,000* F and higher, the temperature at the outer case metal layer does not exceed 450* F.
摘要翻译:诸如具有外部不规则形状表面的铸铁发动机排气歧管的发动机部件被无机绝热层覆盖,所述无机隔热层的导热率优选为约0.01BTU / hr / ft /°F至0.2BTU / hr / ft /°F。在绝缘层上形成包封的铸造金属层,使得当歧管内的热流体达到高达2000°F或更高的温度时,外壳金属层的温度不超过450 DEG F.
摘要:
A composite roofing or siding sheet and method of making the same is provided. Metal foil is laminated over a fibrous base layer by an improved polymeric bonding system.
摘要:
Metal substrates may be chromised by subjecting them to a diffusion heat treatment in which the substrate is placed in contact with a flexible carrier sheet having adherent thereto or incorporated therein chromium metal or an alloy thereof or a reducible compound of chromium. Particularly suitable flexible carrier sheets are made from asbestos paper. If chromium metal or an alloy thereof is employed it is necessary that a halide is also present. This may be present either on the surface of the substrate itself, on the flexible carrier sheet bearing the chromium or its alloy or on a separate sheet of flexible carrier material.
摘要:
A LAYER OF ASPHALT IMPREGNATED ASBESTOS FELT IS ADHERED TO A METAL ROOF DECK BY NONCUMBUSTIBLE ADHESIVE AND A LAYER OF NONCOMBUSTIBLE INSULATING BOARDS IS ADHERED TO THE ASBESTOS FELT BY MOPPING ASPHALT. A CONVENTIONAL BUILT-UP ROOF CAN BE INSTALLED OVER THE INSULATING BOARDS.