Abstract:
The present invention relates to lubricant compositions and can be used for treatment of friction units in different machines and mechanisms in manufacturing processes, the purpose of which is modification of friction surfaces. The basis of the invention is the improvement of lubricant composition, in which as the consequence of the additional use of thickener and wax, the viscosity of lubricant composition sufficient for conversation of uniform distribution of solid component in lubricant composition in broad temperature range is provided; and at the expense of that, the possibility of conservation of lubricant composition in any packaging and bulks, which are usable even under operating conditions of machines and mechanisms, is reached. The lubricant composition acquires the state of gel, that is convenient to put on any friction surface, to deposit on a zone of friction of any friction units. The lubricant composition ensures the receiving of engineering results similar to those, which solid components exhibit using fine-dispersed powder on basis of natural minerals from flaky silicates series and at the same time the sedimentation properties of lubricant composition permit its continuous conservation in broad temperature range without variation of lubrication and modification properties.
Abstract:
The present invention is directed to an antimicrobial composition, comprising pyrithione or a pyrithione complex; and a zinc or copper or silver source selected from the group consisting of zinc or copper or silver salts, oxides, hydroxides, sulfates, chlorides, metals, and combinations thereof; wherein the weight ratio of the zinc or copper or silver source to the pyrithione or the pyrithione complex is in the range from about 1:300 to about 50:1, and wherein the antimicrobial composition has an enhanced biocidal effect against a variety of free-living microorganisms or biofilms. Also disclosed is a method of inhibiting the growth of free-living microorganisms or biofilm utilizing the above antimicrobial composition, as well as use of such antimicrobial compositions in various products including fuels, fluids, lubricants, coatings, adhesives, sealants, elastomers, soaps, cosmetics, plastic or woven or non-woven fibers, pharmaceuticals, and as preservatives for the above products.
Abstract:
In order to free a seized valve, an inspection port (52) is formed in a wall of the valve body and the areas where the valve is seized are determined. One or more injection ports (54) are formed in the valve body adjacent to the seized portions of the valve, pressurised fluid (preferably an insoluble lubricant having a very high cone penetration) is injected through the or each injection port and the injection ports are then closed.
Abstract:
A highly effective solid cold working lubricant may be deposited on a metal surface from an aqueous solution/dispersion that contains ethoxylated alcohols with at least 18 carbon atoms per alcohol and lithium, calcium, and/or sodium salts of fatty acids. Optional preferred ingredients include inorganic boron containing compounds, ethoxylated castor oil, ionomers, and a corrosion inhibitor that includes azoles. No prior conversion coating, such as is generally used under conventional organic soap lubricants, is needed with this type of solid film.
Abstract:
An aqueous cutting fluid comprising a cationic water-soluble resin having an amino value of 20 to 200 mg KOH/g and at least one viscosity modifier selected from among inorganic and organic bentonites and aqueous silica sols, wherein the content of nonvolatiles in the viscosity modifier is 0.1 to 30 wt.% based on the nonvolatiles in the resin; an aqueous cutting agent prepared by incorporating abrasive grains into the fluid in an amount of 100 to 1000 wt.% based on the nonvolatiles of the fluid, which is excellent in the dispersion stability of abrasive grains and viscosity stability and effective particularly for wire saws; and a process for cutting hard brittle materials by the use of a cutting tool and the cutting agent, which permits high-accuracy processing of the hard brittle materials and excellent cleaning thereof.
Abstract:
An improved polybutene-free lubricant composition for marine diesel engines, comprising a major amount of oil of lubricating viscosity and, provided by admixing therewith, minor amounts of a) at least one of a borated dispersant or oil-soluble or oil-dispersible boron compound; and b) one or more overbased metal compounds, the or each compound having a TBN of at least 300, with the proviso that if an overbased metal salicylate is present then the TBN of said salicylate is at least 200; wherein the TBN of the composition is at least 10 and the viscosity index of the composition is at least 90.
Abstract:
The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can impart a relatively high pH and corrosion resistant properties to the grease.
Abstract:
A recirculating flow of a non-micellar milky white water-in-oil emulsion is provided to a metal workpiece (4) being subjected to a working operation in a work station (1), the fluid (20) returning from the work station (1) being collected in a tank (8) and its water content replenished by simple addition (21) of water thereto. The direction of circulation of fluid (20) is indicated by arrows (30). During recirculation, the fluid preferably passes through filters (17, 13) to a clean storage tank (14).
Abstract:
A lubricating composition comprising a base oil of mineral and/or synthetic origin in combination with a friction-reducing additive combination comprising molybdenum disulphide, zinc naphthenate and one or more metal dithiophosphates, and optionally one or more metal dithiocarbamates. A lubricating grease comprising such a composition in combination with a thickener, which may be a urea compound, a simple lithium soap or a lithium complex, is particularly suitable for lubricating constant velocity joints such as constant velocity ball joints.
Abstract:
A nitrite-free, aqueous wet temper pass agent that prevents staining of the rolls and corrosion of temper rolled sheet steel or galvanized sheet steel, contains at least one benzoylalanine of general formula (I) or its salts, at least one monocarboxylic and/or dicarboxylic acid, at least one alkanolamine, possibly an aromatic sulfonic acid and a water hardness complexant, the remaining being water. A process is also disclosed for temper rolling hoop-steel and galvanized hoop-steel with the disclosed wet temper pass agent.