Dry film lubricant composition

Abstract

The invention provides a dry film lubricant composition. Based on a liter, the composition comprises the following components: 40 to 80 grams of graphite powder; 230 to 300 milliliters of aid, 450 to 650 milliliters of main solvent, 30 to 100 milliliters of auxiliary solvent and 50 to 150 milliliters of lubrication improver. With low requirements on curing environment, the dry film lubricant composition provided by the invention can cure after being placed at a curing temperature. The curing temperature of the composition is low, and the curing time is short. In addition, the dry film lubricant composition obtained by the invention has high heat resistance, hot water resistance, oil resistance, lubricating performance and high adhesion force and flexibility and therefore can adapt to various working environments. Without self-curing capacity, the dry film lubricant composition provided by the invention avoids blocking spraying equipment in a spraying process. Meanwhile, the dry film lubricant composition provided by the invention has long period of validity.

Description

technical field [0001] The invention relates to the technical field of lubricants, in particular to a dry film lubricant composition. Background technique [0002] During the operation of mechanical equipment, wear between parts will inevitably occur. In order to maintain the lubricity of the parts, a lubricating layer is usually coated on the surface of the running-in worn parts to maintain the normal working condition of the parts, and the lubricating layer is applied It is beneficial to reduce the friction of the mating surface of the parts, improve the wear resistance and corrosion resistance of the parts, avoid the damage of rigid wear between the parts, and prolong the working life of the parts, thereby improving the working performance and service life of the equipment or equipment. Therefore, lubricants with superior performance play an important role in solving the wear problem between parts. [0003] Ordinary lubricating grease can reduce the wear between parts. H...

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Problems solved by technology

[0004] Based on the excellent performance of this dry film lubricant, various dry film lubricants have been disclosed in the prior art. For example, the Chinese patent application number CN200710164838.4 discloses a self-lubricating wear-resistant graphite TiC gradient composite film. This composite film contains 54-75wt% graphite-like and 25-46wt% TiC. This lubricating film requires a higher curing temperature; the Chinese patent application number CN200610014501.0 discloses an anti-sticking, anti-wear, anti-friction and lubricating properties comprising phosphoric acid, aluminum hydroxide, graphite, lead oxide, polyoxyalkylene sorbitan oleate, boron nitride, tungsten disulfide and water, however this invention results in a water-based composition , requires high curing temperature and long curing time

[0005] Dow Corning Corporation of the United States has produced a series of solid lubricating films modeled as D10 or 7409. This type of solid lubricating film is prepared with graphite or molybdenum disulfide as a solid lubricant, resin glue as a binder, and performance improvers and solvents. , this type of solid lubricating film has good environmental adaptability and lubricating performance, but it has strict requirements on curing conditions, such as humidity, etc., requires high curing temperature and long curing time, which will reduce the curing of dry film lubricants Efficiency, not conducive to the use of large quantities

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