Abstract:
Lubricating grease having high dropping point, superior stability against oxidation and long life is obtained by having a thickener contained in grease, said thickener comprising the three components:a. lithium soap of C.sub.12-24 hydroxyfatty acid,b. lithium phosphate salt produced from phosphoric or phosphorous acid ester andc. dilithium borate.
Abstract:
A high performance lubricating grease effectively lubricates and greases front-wheel drive joints. The front-wheel drive grease has excellent extreme pressure properties and antiwear qualities and is economical, non toxic and safe. In one preferred form, the front-wheel drive grease comprises a base oil, a thickener comprising polyurea and calcium complex soap, and an additive package comprising tricalcium phosphate and calcium carbonate.
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:
A water-in-oil emulsion lubricant concentrate useful in drawing and ironing of various metals is described. The active ingredients are a monohydric alcohol ester of polycarboxylic acids. Included in the concentrates are emulsifying agents and optionally, corrosion inhibitors.
Abstract:
Substantially oil-free aqueous industrial fluids possess superior lubricating and wear preventing characteristics and are useful as hydraulic fluids and metalworking compositions. Fluids of the invention comprise (1) an aqueous liquid and (2) a water-soluble synthetic addition copolymer of (a) an ethylenically unsaturated crosslinking monomer, (b) an ethylenically unsaturated water-soluble monomer, and (c) an ethylenically unsaturated water-insoluble monomer.The industrial fluids exhibit good Newtonian behavior and mechanical stability at high shear.
Abstract:
A process for the production of an aqueous lubricant composition free of oil including water and at least one metallic carboxylate, wherein the anionic is at least one saturated linear organic radical containing at least 12 carbon atoms and the cationic is at least one bivalent or trivalent metal having an electro-chemical oxidation-reduction potential greater than -0.7 volts. The process includes mixing of two mother solutions. The first mother solution is an aqueous solution of at least one alkali metal carboxylate soluble in water wherein the anionic is at least one saturated linear organic radical with at least 12 carbon atoms. The second mother solution is an aqueous solution of at least one metallic salt whereof the anionic is selected from the group consisting of hydroxide, chloride, sulphate, nitrate or phosphate ions and whereof the cationic is at least one bivalent or trivalent metal having an electro-chemical oxidation reduction potential greater than -0.70 volts.
Abstract:
The invention relates to lubricants for use in metal shaping operations, especially hot and cold rolling of steel and aluminium, and casting of aluminium. Preferred lubricants comprise in a mixture (i) a tetraester of pentaerythritol and a C.sub.16 to C.sub.20 aliphatic monocarboxylic acid, (ii) orthophosphoric acid. The lubricants have markedly reduced coefficients of friction; improved roll-wear characteristics and good stability at temperatures of 250+.degree.C. Incorporation of mineral oil and an emulsifier enables the thus modified composition to be used for the preparation of aqueous emulsions or dispersions.
Abstract:
A method of treating steel sheets which have good corrosion resistance after forming, which comprises coating a steel sheet with a solution which contains:(a) water-soluble or water-dispersible lithium silicate at a concentration of 2 to 250 g/l, which lithium silicate is a mixture of silicic acid or silicate and lithium salt in a molar ratio of 20:1 to 1:1.(b) at least one water-soluble or water-dispersible saturated or unsaturated fatty acid compound, higher alcohol wax, polyethylene type resin, fluorine type resin or silicone type resin at a concentration of 1 to 250 g/l.
Abstract:
A machining fluid includes a basic component in the form of an aqueous solution and an aliphatic acid organic compound which is produced by a fermentation process comprising cultivating a microorganism in a culture medium containing a saccharide, nitrogen source and an inorganic salt and accumulated in a culture broth and separated and recovered from the culture broth.
Abstract:
Method and composition for applying a coating to a metallic surface, the surface being immersed in an acidic aqueous coating composition comprising dispersed solid particles of an organic polymeric resinous coating-forming material and an oxidizing agent, wherein the weight or thickness of the coating formed on the surface is a function of the time the surface is immersed in the composition.