High-temperature no-dropping-point lubricating grease and production technique thereof

Abstract

The invention relates to a high-temperature no-dropping-point lubricating grease and a production technique thereof. The high-temperature no-dropping-point lubricating grease is prepared from the following components in parts by weight: 13.7-84.4 parts of base oil, 5-15 parts of bentonite thickener, 5-50 parts of composite calcium sulfonate lubricating grease, 5-20 parts of tackifier, 0.5-1 part of antioxidant and 0.1-0.3 part of metal deactivator. The preparation method of the composite calcium sulfonate lubricating grease comprises the following steps: converting superhigh-base-number calcium sulfonate with a conversion agent at 60-100 DEG C for 20-60 minutes until the superhigh-base-number calcium sulfonate becomes obviously thickened, and heating to 140-180 DEG C to remove water. The high-temperature no-dropping-point lubricating grease has the advantages of long grease addition period and wide adaptability, and can be used in high-temperature positions; and at high temperature, the high-temperature no-dropping-point lubricating grease also has the advantages of no coking, light discolorment, less oil bleeding, low loss and longer service life.

Description

technical field

[0001] The invention relates to a lubricating grease and a production process thereof. Background technique

[0002] Bearings or gear parts of steel plants, automotive paint conveyor chains, paper mills, refractory plants, chemical plants, machining and other equipment, many parts are lubricated by grease, and the operating temperature is very high, generally around 150-250 °C.

[0003] High-temperature lubricating parts: such as bearings of coke cars in coking plants, bearings of furnace front and furnace top equipment in ironmaking plants, continuous casting machine bearings in steelmaking plants, gears of vertical reducers, racks of flame cutting machines, hot-rolled strip steel plants Furnace roller bearings, hot coil box bearings, coiler bearings, work roll bearings in profile rolling mills, cooling bed bearings, furnace front roller bearings in wide and thick plate factories, heat treatment hearth roller bearings, drying and setting machines in paper mi...