Lubricant composition and his use in a ball joint

A technology for lubricants, ball joints, applied in the field of application of lubricant components in such a ball joint, able to solve the problems of direct contact, enlargement, ball socket wear, etc.

Inactive Publication Date: 2002-03-13
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the torque during motion becomes greater and the lubricating film is broken during continuous motion, leading to direct contact between ball socket and ball seat, and the development of ball socket wear and increased displacement

Method used

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  • Lubricant composition and his use in a ball joint
  • Lubricant composition and his use in a ball joint
  • Lubricant composition and his use in a ball joint

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] Example 1 (the present invention)

[0039] A stainless steel container is filled with a viscosity of 5.2×10 at 25°C 4 mN·s / m 2 (cP) 200g of polyisoprene (hereinafter referred to as viscous medium A), 80g of ethylenebis-stearylamide (hereinafter referred to as amide A) and 30g of polyethylene wax, and stir to dissolve The charge was heated to 150°C. Stop heating when the contents melt and become transparent, add 1.0% amine-type antioxidant and cool to normal temperature. The contents are kneaded with a three-roll press to obtain a lubricated product. The penetration was 283 0.1 mm at 25°C, and the dropping point was 130°C in the lubricated product thus obtained.

example 2

[0040] Example 2 (the present invention)

[0041] By mixing at 25°C, the weight is 60%, the viscosity is 5.2×10 6 mN·s / m 2 (cP) polyisoprene and 40% by weight at 40°C, dynamic viscosity of 33.0mm 2 A viscous medium (hereinafter referred to as viscous medium B) was obtained from poly-α-olefin as a synthetic oil per sec. The viscosity of the viscous medium B is measured by a type B viscometer at 25°C as 8.0×10 4 mN·s / m 2 (cP). A stainless steel container was filled with 200 g of this viscous medium, 70 g of amide A and 30 g of paraffin, and the contents were heated to 150°C while being stirred. Heating was stopped when the content melted and became transparent, and after adding 1.0% of an amine type antioxidant to the content, it was cooled to normal temperature. The contents were homogenized by a three-roll press to obtain a lubricant product. The penetration was 2680.1 mm at 25°C and the dropping point for the product thus obtained was 124°C.

example 3

[0042] Example 3 (the present invention)

[0043] When mixed at 25°C, the weight is 40%, and the viscosity is 5.2×10 6 mN·s / m 2 (cP) polyisoprene and 60% by weight at 40°C with a dynamic viscosity of 23.5mm 2 / sec mineral oil to obtain a viscous medium (hereinafter viscous medium C). The viscosity of this medium is measured by a type B viscometer at 25°C as 1.1×10 4 mN·s / m 2 (cP). A stainless steel vessel was filled with 200 g of viscous medium C, 60 g of amide A and 40 g of microcrystalline paraffin. And the contents were heated to 150°C with stirring. Stop heating when the contents melt and become transparent, add 1.0% amine-type antioxidant and cool to normal temperature. After cooling, the contents are kneaded with a three-roll press to obtain a lubricated product. The penetration was 295 0.1 mm at 25°C, and the dropping point was 129°C in the lubricated product thus obtained.

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Abstract

Lubricant composition comprising: (A) 100 parts by weight of a viscous material having a viscosity from 3x103 to 105 mN.s/m2 (cP) at 25 ~C, which i s at least one member chosen from the group consisting of (i) polyisoprene rubber and (ii) viscous composition comprising polyisoprene rubber viscous substance; and (B) 15-45 parts by weight of at least one compound from a specific group of aliphatic amides and a specific group of aliphatic bisamid es and (C) 5-30 parts by weight of at least one wax chosen from the group of polyethylene wax, paraffin wax and microcrystalline wax; and ball joint comprising such lubricant composition, and use of such lubricant composition in a ball joint.

Description

field of invention [0001] The present invention relates to a lubricant component. In particular, the present invention relates to a ball joint comprising a ball seat made of synthetic resin and a metal ball socket, the ball joint further comprising the lubricant component of the present invention, and the use of the lubricant component in such a ball joint application. Background technique [0002] In ball joints generally used in automobiles, the basic lubrication method is to place a lubricant between a ball seat 1 made of synthetic resin and a metal ball holder 2 . Many methods have been proposed for the maintenance and performance improvement of ball joints. For example, increasing the hardness in the ball seat to prevent wear; adding molybdenum, graphite or lubricating oil to the ball seat to increase the smooth characteristics of the resin itself, or adding a groove on the inner surface of the ball seat to act as a grease container role. [0003] However, there are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M111/04C10MC10M101/02C10M105/68C10M107/14C10M133/16C10M159/06C10M169/00C10M169/02C10NC10N20/00C10N20/02C10N30/06C10N40/04C10N50/10
CPCC10M2205/066C10N2220/021C10N2230/74C10N2230/10C10N2230/02C10M2205/06C10N2230/06C10M2205/14C10M161/00C10N2240/02C10M2205/0285C10M2203/1006C10N2250/10C10M2215/08C10N2240/046C10N2020/04C10N2030/02C10N2030/10C10N2030/74C10N2040/046C10N2030/06C10N2040/02C10N2050/10C10M169/02
Inventor 益森隆一八冢嘉久田中启司
Owner SHELL INT RES MAATSCHAPPIJ BV
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