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Plain bearing

A technology for sliding bearings and bearing alloys, applied in bearings, bearing components, shafts and bearings, etc., can solve problems such as poor adaptability, seizure, and insufficient retention of solid lubricants in the internal strength of the coating

Inactive Publication Date: 2003-01-01
TAIHO INDUSTRIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the solid lubricant layer in the related art described above has an additional amount of solid lubricant of 55 to 97% by weight or more, the internal strength of the coating and the retention of the solid lubricant are insufficient
Correspondingly, due to the shedding of the membrane or other defects, the adaptability becomes poor, and occlusion occurs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、 comparative Embodiment 1 and 2

[0046] 60 volume % of polyamide-imide resin A (Hitachi Chemical Co., Ltd. production) as shown in table 1, 40 volume % of molybdenum disulfide as solid lubricant and an appropriate amount of organic solvent (N-methyl- 2-pyrrolidone) was added into the ball mill, and then mixed and ground in the ball mill for 3 hours to prepare a coating solution for forming a resin coating.

[0047] Subsequently, the surface of the bearing in the shape of a semi-cylindrical, etc., containing a liner material made of an aluminum alloy (Al-11Sn-1.8Pb-1Cu-3Si) tightly bonded to a backing steel plate is degreased, and then Sandblasting to obtain a roughness Rz of 1 μm. Subsequently, the above-mentioned coating solution was air-sprayed onto the bearing to a thickness of about 6 μm, and then thermally cured at 180° C. for about 60 minutes to form a resin coating on the bearing. Thus, a sliding bearing (covered with metal) is produced. (Example 1)

Embodiment 2-5 and comparative Embodiment 3 and 4

[0050] Resin coating was formed in the manner of Example 1 to prepare sliding bearings, except that the type and amount of polyamideimide resin (PAI) used were changed, the amount of molybdenum disulfide (MoS2), and optionally used as an extreme pressure additive The amount of zinc sulfide (ZnS) and aluminum oxide (Al 2 o 3 ) consumption, as shown in Table 2.

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Abstract

An object of the present invention is to provide a sliding bearing having an excellent initial conformability and seizure resistance as well as desired durability and heat resistance required particularly for high speed engine. The present invention provides a sliding bearing having a resin coating layer comprising a thermosetting resin being soft and having a good elongation at high temperature and a solid lubricant formed on a bearing alloy layer.

Description

technical field [0001] The present invention relates to a sliding bearing that can be used in automobile engines and engines of other industrial machines. Background technique [0002] Sliding bearings used in automobile engines are usually made of aluminum alloy or copper-lead alloy plated with lead-based materials. In recent years, the performance of automobile engines has improved significantly, such as greater output and faster speed have been developed. Accordingly, sliding bearings are required to have excellent performance in sliding performance, especially in initial confomability and seizure resistance, as well as durability and heat resistance. [0003] JP-A-04-83914 discloses a sliding bearing material comprising a coating comprising 55 to 95% by weight of a solid lubricant and 10 to 45% by weight of a polyimide-based binder, coated The layer is formed on the surface of the aluminum alloy bearing. Such a solid lubricant coating makes it possible to improve the ...

Claims

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Application Information

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IPC IPC(8): C09D179/08C10M103/00C10M103/02C10M103/04C10M103/06C10M107/38C10M145/20C10M149/18C10M151/04C10M169/04C10N10/08C10N10/12C10N20/00C10N30/06C10N30/08C10N40/02C10N50/08F16C33/20
CPCC09D179/08F16C33/201Y10S384/909F16C2240/40C23C22/22F16C2208/40F16C33/20
Inventor 金山弘出崎亨川越公男后藤保明不破良雄道冈博文秋山健优
Owner TAIHO INDUSTRIES CO LTD
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