Grease composition and sliding member

A grease composition and polymer technology, applied in the fields of mechanical devices and parts, can solve the problems of muteness and insufficient lubricating performance of the grease composition, and achieve the effects of excellent damping characteristics, excellent lubricating performance and noise reduction.

Inactive Publication Date: 2018-12-21
DOW CORNING TORAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the grease composition proposed above is not sufficient especially in properties such as quietness and lubricating performance, and there is room for improvement.

Method used

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  • Grease composition and sliding member
  • Grease composition and sliding member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8 and comparative example C1～C5

[0093] Mix the components according to the ratio shown in Table 1 to Table 2. First, dissolve component B in toluene, and then mix the toluene solution of B and oil A evenly. A homogeneous mixture of A and B was prepared by evaporating toluene in an oven. Add solid powder C to the mixture of A and B, mix with a dental mixer, process with three rolling mills, and use a dental mixer for defoaming, so as to obtain the grease compositions of Examples 1-8 and Comparative Examples C1-C5 . In addition, the numerical value shown in Table 1 and Table 2 represents a mass part. In addition, grease compositions could not be prepared when the ingredients were incompatible during the mixing stage, as noted in the table. Specifically, in Comparative Example C5, the methyl silicone oil was not compatible with any of the (B) components, and a grease composition could not be prepared.

[0094] In Tables 1 to 2, each component is as follows. In addition, in component (a1), "Tfp group" refers...

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Abstract

The purpose of the present invention is to provide: a grease composition, which has excellent damping characteristics, for which there is almost no problem of oil separation even at high temperature,which has excellent lubrication performance, and when applied to noise-generating areas that configure a mechanical device, can reduce noise generated from the mechanical device; a sliding member using same; etc. A grease composition which: contains 100 parts by mass of (A) an aryl group-containing polyorganosiloxane and 1-50 parts by mass of (B) an acrylic block copolymer with a weight average molecular weight of 10,000-1,000,000 and a molecular weight distribution [ratio (Mw / Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn)] of 1.5 or less; contains the component (B) in a range of 1-40 mass% of the composition as a whole; and may contain (C) solid particles.

Description

technical field [0001] The present invention relates to a lubricating grease composition and a sliding member using the same. The lubricating grease composition has excellent damping properties, basically does not cause oil separation at high temperatures, has excellent lubricating performance, and is used to form mechanical devices When the sliding member is used, the noise generated by the mechanical device can be reduced. Furthermore, the present invention also relates to a component and a mechanical device having the member. In addition, the present invention also relates to a noise reduction method of a mechanical device characterized by applying the grease composition to a sliding member. Background technique [0002] A sliding member coated with a grease composition is used in driving parts, sliding parts, or conveying parts used in mechanical devices such as automobiles. In recent years, in order to improve the reliability and prolong the service life of sliding me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00F16C33/10F16D69/00C10M107/50C10M125/02C10M125/10C10M125/22C10M125/26C10M143/02C10M143/04C10M145/14C10M147/00C10M147/02C10M149/18C10M155/02C10N10/04C10N10/06C10N10/08C10N10/12C10N20/02C10N20/04C10N30/00C10N40/02C10N40/08C10N50/10
CPCC10M169/041C10M2201/041C10M2201/062C10M2201/066C10M2201/105C10M2205/022C10M2205/024C10M2209/0813C10M2209/084C10M2209/0845C10M2213/062C10M2217/044C10M2229/02C10M2229/0415C10M2229/0425C10M2229/0515C10N2020/02C10N2030/06C10N2030/08C10N2050/10C10N2030/76F16C33/10F16D69/00C10N2020/04C10N2010/08C10N2010/06C10N2020/06C10N2010/04C10M107/50C10M125/02C10M125/10C10M125/22C10M125/26C10M143/02C10M143/04C10M145/14C10M147/02C10M149/18C10M155/02C10M169/04C10M169/00
Inventor 横山高田中辉義山口哲司
Owner DOW CORNING TORAY CO LTD
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