Abstract:
Es wird ein Verfahren angegeben, um in einem einzigen Schritt Metallplättchen aus Tantal, Niob oder aus einer Basis-Legierung eines dieser Metalle durch Kaltfließpressen zu einem Formkörper zu verformen. Dabei wird als Schmiermittelfilm entweder eine Oxidschicht des Metalls, in die ein niedermolekulares Polytetrafluoräthylen eingelagert ist, oder ein Film aus Chlor-tri-Fluor-Äthylen verwendet und das Metallplättchen mittels eines Hartmetall-Stempels mit balliger Bodenfläche des Stempelkopfes und abgerundeten Hinterschneidungen im Übergangsbereich von Stempelkopf zu -schaft verformt.
Abstract:
A wire rod is payed out from a pay-off stand and descaled in a descaling process. After preheating to a predetermined temperature by a preheating device, it is subjected to a lubrication pretreatment through a zinc calcium phosphate solution applied with ultrasonic wave in the lubrication pretreatment process. After rinsing process, the lubrication-pretreated wire rod is coated with a calcium stearate or a sodium stearate in lubricating process. Thereafter, the wire rod is dried sufficiently in drying process, and then added with a predies lubricant in wire drawing process and coiled by a coiler.
Abstract:
Improved composite bearings are provided employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.
Abstract:
Improved composite bearings are provided employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.
Abstract:
A wire rod is payed out from a pay-off stand and 1 descaled in a descaling process. After preheating to a predetermined temperature by a preheating device, it is subjected to a lubrication pretreatment through a zinc calcium phosphate solution applied with ultrasonic wave in the lubrication pretreatment process. After rinsing process, the lubrication-pretreated wire rod is coated with a calcium stearate or a sodium stearate in lubricating process. Thereafter, the wire rod is dried sufficiently in drying process, and then added with a predies lubricant in wire drawing process and coiled by a coiler.
Abstract:
Lubricating oil compsn. (I) consists of: (a1) 0-80 (wt.%) glass powder; (a2) 0-50 glass frit, where one of (a1) or (a2) is hot 0 wt .%; (b) 10-25 natural or synthetic graphite; (c) 5-20 alkali silicates of formula: Me2OnSiO2 (where Me = Li, K or Na; and n = 1-4); (d) 1-6 water-soluble Na-polymetaphosphate; (e) 0-3 water-insoluble Na-polymetaphosphate; (f) 0.5-4 thickener; and (g) 0-1 borax.
Abstract:
Lubricating oil compsn. (I) consists of: (a1) 0-80 (wt.%) glass powder; (a2) 0-50 glass frit, where one of (a1) or (a2) is hot 0 wt .%; (b) 10-25 natural or synthetic graphite; (c) 5-20 alkali silicates of formula: Me2OnSiO2 (where Me = Li, K or Na; and n = 1-4); (d) 1-6 water-soluble Na-polymetaphosphate; (e) 0-3 water-insoluble Na-polymetaphosphate; (f) 0.5-4 thickener; and (g) 0-1 borax.
Abstract:
Thin impermeable, surface hardened, corrosion-resistant, durable, dry lubricant surface finishes are provided as well as surface finished products and methods for the production thereof. The surface finishes comprise particulate mixtures of sulfur containing metallic compounds and fluorocarbon polymers and are applied to surfaces of substrates such as metallic surfaces.
Abstract:
A lubricant additive that includes antimony thioantimonate and antimony trioxide in a specified ratio for enhancing the extreme pressure, antiwear, and antiabrasive properties of conventional lubricants as well as for use in lubrication of a wide variety of lubricated contact surfaces.