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286results about How to "Good mechanical stability" patented technology

Flame-retarded lubricating grease and preparation method thereof

The invention relates to flame-retarded lubricating grease and a preparation method thereof. The preparation method comprises the following technical steps: firstly, putting base oil and an inorganic thickening agent in an open reaction kettle for stirring and mixing, adding a dispersant after heating and heating again to take the mixture out of the kettle for use; secondly, mixing fatty acid calcium soap with the base oil, adding fatty acid lithium soap after heating, keeping heat, dehydrating and refining; finally, removing the materials to a middle kettle, lowering the temperature by cooling, stirring the materials with lubricating grease prepared by the inorganic thickening agent, adding an antioxidant, a flame retardant and an anti-rusting agent for homogenization and filtering to obtain finished products. The lubricating grease not only keeps various excellent properties of original general lithium grease, but also specially enhances the incombustible flame retardance of a 600 DGE C hot plate. Assessment of the properties of the flame-retarded lubricating grease shows that the flame-retarded grease lubricant has excellent mechanical stability, water resistance, lubricating property, anti-rusting property and flame retardance, long service life and low cost, and can replace general lithium grease used in coal mine, subway, metallurgy and other industries at present.
Owner:无锡中石油润滑脂有限责任公司

Turbine worm lubricating grease composition and preparation method thereof

The invention relates to a turbine worm lubricating grease composition and a preparation method. The turbine worm lubricating grease composition is prepared from 85-90% of base oil, 10-15% of thickener, 0.5-1% of antioxidant, 0.05-0.1% of antirust agent, 0.5-2% of extreme-pressure abrasion-resisting agent and 0.5-1% of tackifier. The thickener is generated through reaction of fatty acid and an alkaline water solution, wherein the fatty acid is a mixture of 12-hydroxy stearic acid and sebacic acid, and alkali is the mixture of lithium hydroxide and calcium hydroxide. The lubricating grease is of a unique mixed thickener type, so that the water-resistant and shearing properties of the lubricating grease are remarkable, and the usage requirement for the 30-70 DEG C wide temperature range of a turbine worm accessory itself can be well met. The colloid stability, water resistance and oxidation resistance of the lubricating grease are effectively improved, meanwhile the lubricating grease composition has the advantages of being low in oil separation rate, small in evaporation loss, high in shear stability, good in high and low temperature performance and corrosion protection effect and the like, and the usage temperature range of the lubricating grease is 30-150 DEG C.
Owner:CHINA PETROLEUM & CHEM CORP

High-temperature lubricating grease for food processing and preparation method thereof

The invention relates to lubricating grease and a preparation method thereof, in particular to high-temperature lubricating grease for food processing and a preparation method thereof, and belongs to the technical field of chemistry. The high-temperature lubricating grease is prepared from base oil accounting for 70%-92% of the total weight of the lubricating grease, an inorganic thickening agent accounting for 3%-20% of the total weight of the lubricating grease, a tackifier accounting for 2%-6% of the total weight of the lubricating grease, an auxiliary dispersant accounting for 0.1%-1.5% of the total weight of the lubricating grease, an antioxidant accounting for 0.3%-1.0% of the total weight of the lubricating grease, a corrosion inhibitor accounting for 0.05%-1% of the total weight of the lubricating grease, a friction modifier accounting for 0.1%-0.5% of the total weight of the lubricating grease and a solid additive accounting for 2%-10% of the total weight of the lubricating grease. The high-temperature lubricating grease has the advantages of being capable of not being fused at high temperature, high in dropping point, few in high-temperature consistence change, good in colloid stability and the like and especially suitable for lubricating and sealing high-temperature food processing equipment.
Owner:JIANGSU LOPALTECH
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