Detailed description of self-lubricating bearings on the casting

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    Wide temperature self-lubricating bearings, solid lubrication material is abundant, uniform release, has a good self-lubricating properties and occlusion, can effectively protect the journal, to achieve a lasting purpose. Applies at high temperature, low-speed, heavy duty , dust, water, shower and run under shock and vibration environment can be widely used in mining machinery, metallurgy, petroleum, chemical, food, textile, paper, printing and dyeing machinery and equipment rolling and the sliding bearing parts. angular bearing

Aluminum cell to produce aluminum liquid, suction vacuum lift package pour into the mixing vessel through ratio and slag removal after the inflow to the aluminum ingot casting machine, casting molding, forming solid called aluminum ingots, production of aluminum ingot stacker stacking. In order to improve production efficiency, aluminum ingot molding must be a lot of cooling water for cooling, the tremendous heat in the cooling process of molten aluminum released into the cooling water, hot steam.

Casting machine bearings in high temperature and water vapor environment, bearing greas e, the grease add a relatively short time because of the high-temperature melt overflow removed, maintenance difficulties, equipment, surface hygiene and ease of swabbing. Steel bearings in the hot, humid environment, it is easy to rust corrosion, the failure rate is very high, higher cost of equipment maintenance, equipment operation often subject to the troubles of the following two problems. cross bearing

Oil operation is difficult to achieve high-temperature continuous operation of the pull ingot casting machine, shift spindle, then ingots, turned spindles and other devices are installed in the unit housing, each rotating bearing on the design of the nozzle facilities regularly inject grease, oiling to be parking removal of the shell, oil gun pressure grease. And machine oiling points up to 30 places, and long-term operation and maintenance can not be achieved this kind of com plicated oiling operation had to hand-held thin oiler with spraying in the operation of bearing external oil is difficult to enter the bearing friction pair, large part of the bearing in a state of friction.

Ambient temperature grease suited to the casting machine Rolling of molybdenum disulfide grease is considered to be high-temperature grease, we know that the base oils are petroleum products, plus a small amount of high-temperature molybdenum disulfide additives, the temperature limit is 120 ℃. According to the measured casting machine bearing operating temperature up to 200 ° C, have gone far beyond the grease temperature limit.

In such high temperature conditions, the base oil in grease becomes thinner and gradually solidified in the rolling bearing cage by evaporation, and the remaining residue of carbon, molybdenum disulfide, dust mixed into a solid block, not only lost its lubrication. also impede the normal operation of rolling bearing s wear quickly, up to two weeks you have to stop, remove the bearing cleaning a new grease. angular contact bearing