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Dry film lubricant coating composition and preparing method thereof

A technology of dry film lubrication and composition, which is applied in the field of molybdenum disulfide-based dry film lubricating coating composition and its preparation, can solve the problems of binding force, oil resistance and wear resistance that cannot be applied to the core components of aero-engine high-speed rotation, and achieve Excellent tribological properties, excellent lubricating properties, the effect of reducing vibration and noise

Active Publication Date: 2013-12-04
PLA NO 5719 FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it cannot solve the problems of bonding force, oil resistance and wear resistance at the same time, it cannot be applied to the high-speed rotating core components of aero-engines, especially the lubrication performance of the Su-27 aircraft engine transfer components with a speed of up to 10,000 rpm
At present, there is no report in China that can meet the requirements for the use of parts with a speed of up to 10,000 rpm.

Method used

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  • Dry film lubricant coating composition and preparing method thereof
  • Dry film lubricant coating composition and preparing method thereof
  • Dry film lubricant coating composition and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] At normal temperature and pressure, molybdenum disulfide was added to the X-13 stainless steel drum according to the components specified in Table 1, and stirred evenly. The amount of X-13 added was 25g. Shake in the washing machine for 10 minutes. Then add dibutyl phthalate to the mixed solution in the above-mentioned stainless steel drum, and stir evenly. Take the two-component H01-32 varnish, add it to the above stainless steel roller, mix it in the above two liquids, and place the roller in an ultrasonic cleaning machine with a proper amount of water to vibrate for 10 minutes. Add 300 g of stainless steel beads with a diameter of 8 to 10 mm to the mixture prepared above, then put the drum into a ball mill, and ball mill for 2 hours at a speed of 120 r / min to prepare a slurry coating composition. Then, the coating composition is coated on the surface of the aircraft engine transfer component by a spraying method, and dried in an air environment at room temperature f...

Embodiment 4

[0025] Formulated paint

[0026](1) Accurately weigh 28g of calcined molybdenum disulfide, add it into a stainless steel drum equipped with X-13 (25g), stir evenly, and vibrate for 10min in an ultrasonic cleaner with an appropriate amount of water.

[0027] (2) Accurately weigh 6g of dibutyl phthalate, add it to the mixture in (1), and stir evenly.

[0028] (3) Accurately weigh two-component H01-32 varnish, component one 48g, component two 8g.

[0029] (4) Mix the two liquids in (2) and (3) in a stainless steel drum, and place the drum in an ultrasonic cleaner with an appropriate amount of water to vibrate for 10 minutes.

[0030] (5) Add 300g of stainless steel beads with a diameter of 10mm to the mixture of (4), then put the drum into the ball mill, and mill for 2 hours at a speed of 120r / min.

Embodiment 5

[0032] Preparation before spray coating

[0033] (1) After degreasing the parts with gasoline without additives by means of a brush, dry them in the air for not less than half an hour. Clean the dried parts with a mixed solvent. The composition of the mixed solvent is shown in Table 4.

[0034] Table 2 Composition of mixed solvents

[0035]

[0036] (2) After cleaning, dry the parts in a covered environment for 30 minutes until the solvent is completely evaporated. Do not allow dust and dirt to fall on the surface to be sprayed.

[0037] (3) For parts working in lubricating oil, first clean them with acetone or a mixed solvent, dry them in the air for 30 minutes, and then use filter paper to check whether there is oil on the surface of the parts to be sprayed. If there is still oil, repeat this process until the parts The surface of the coating to be sprayed is free of oil.

[0038] Ball mill the prepared dry film lubricating paint for another 15 minutes, stir evenly, ...

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Abstract

The invention provides dry film lubricant coating composition and a preparing method of the dry film lubricant coating composition. The dry film lubricant coating composition has a good lubricating property, high abrasive resistance and strong binding force and can meet the requirements for being used for coating of the surface of a transportation assembly with the rotating speed of up to 10000 RPM. According to the technical scheme, the dry film lubricant coating composition comprises, by weight, H01-32 varnish 43%-53%, molybdenum disulfide 23%-33%, dibutyl phthalate 4%-6% and organosilicon coating diluents X-13 13%-24%, wherein the grain diameter of the molybdenum disulfide is smaller than 2 microns. The preparing method of the dry film lubricant coating composition comprises the following steps: roasting the molybdenum disulfide at 300+ / -10 DEG C for 3-4 hours, adding the molybdenum disulfide into a steel drum loaded with the diluents X-13 after the molybdenum disulfide is processed and cooled, mixing well, shocking the mixture in an ultrasonic cleaner loaded with water for 5-10 minutes, then adding the dibutyl phthalate and the H01-32 varnish into the organosilicon coating diluents X-13, mixing well, shocking the mixture in the ultrasonic cleaner, and finally adding the solution into a roller ball grinder loaded with stainless steel beads to be made into the pasty coating composition.

Description

technical field [0001] The present invention relates to a kind of molybdenum disulfide-based dry film lubricating coating composition and its preparation method, more specifically, the present invention relates to a kind of dry film lubricating coating composition mainly used for the surface coating of aero-engine transfer components and its preparation method. Background technique [0002] Dry film lubricant, also known as bonded solid lubricant film or solid lubricant coating, is one of the main types of solid lubricants, which is a solid lubricant dispersed in an organic or inorganic adhesive and coated by a specific process Lubrication technology on the friction surface of mechanical parts to reduce friction and wear. With the development of science and technology, dry film lubricant coating has been widely used in modern industry. At present, the application of dry film lubricant coatings under high and low temperature conditions has become very common, such as high-t...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D161/06C09D7/12C10M125/22C10N30/06
Inventor 向巧何勇唐恩军刘智赵云强杨大胜
Owner PLA NO 5719 FACTORY
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