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Slide member and fluid machine utilizing the same

A technology for sliding parts and fluid machinery, applied in the field of fluid machinery and sliding parts, it can solve the problems of inability to ensure the adhesion between the resin and the base material, it is difficult to reduce the mechanical loss of the sliding part, and the resin has poor wear resistance, so as to achieve adhesion Good, reduced mechanical loss, high effect

Inactive Publication Date: 2009-08-26
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the method for producing a sintered sliding material disclosed in Patent Document 1, an appropriate resin film thickness is not formed in the combination of the porous sintered body and the resin, so that the adhesiveness between the resin and the base material cannot be ensured, and the base material The irregularities on the surface of the material may cause the base material to penetrate the resin layer and be exposed, resulting in poor burn resistance
Therefore, it is difficult to reduce the mechanical loss caused by the miniaturization of the sliding part, and it is also difficult to improve the endurance, so there is a problem that it is difficult to ensure reliability.
[0008] In addition, since the sliding part material for a compressor of Patent Document 2 is only impregnated with a fluororesin, the wear resistance of the resin is poor, and the adhesiveness between the resin and the base material cannot be ensured as in Patent Document 1. There is a problem that it is difficult to ensure reliability

Method used

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  • Slide member and fluid machine utilizing the same
  • Slide member and fluid machine utilizing the same
  • Slide member and fluid machine utilizing the same

Examples

Experimental program
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Effect test

no. 1 approach

[0050]

[0051] figure 1 The slide member 1 shown can be applied to a scroll compressor (for example, image 3 The bearing of the high and low pressure dome type compressor 101) of the present invention, in more detail, can be applied to a bearing pad and the like that are in contact with the shaft of the bearing. The dimensions of the bearing pad are, for example, an inner diameter of 20 to 40 mm, an outer diameter of 25 to 50 mm, and a thickness of about 2.5 to 5 mm.

[0052] Such as figure 1 As shown, the sliding part 1 has: a porous sintered base 2 made of a porous sintered body; and a surface coated with pores 6 exposed on the porous sintered base 2 (see figure 2 ) resin composition 3. The porous sintered base 2 is produced by sintering sintered metal powder such as iron.

[0053]The resin composition 3 has: a simple resin layer 3 a covering the surface of the porous sintered base 2 ; and an impregnated layer 3 b impregnated into the pores 6 exposed on the surface ...

Embodiment

[0094] The following test method was used to obtain the relationship between the expression (resin film thickness - hole depth) and the critical load ( Figure 4 and Table 1), the relationship between hole depth and critical load ( Figure 5 and Table 2) test results.

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Abstract

The invention provides a sliding member having reduced mechanical loss due to a smaller slider and possessing high reliability due to improved durability, and also provides a fluidic machine that uses the sliding member. The sliding member (1) has a porous sintered base (2) and a resin composition (3). The porous sintered base (2) is made of a porous sintered compact. The resin composition (3) is coated onto the surface of the porous sintered base (2). The resin layer thickness t1 is obtained by adding 10 [mu]m or more to the pore depth t2. The resin layer thickness t1 is the thickness of the resin composition (3). The pore depth t2 is the depth of the pores (6) exposed on the surface of the porous sintered base (2).

Description

technical field [0001] The present invention relates to a sliding member and a fluid machine using the same. Background technique [0002] Fluororesin has excellent wear resistance and low friction, but since the strength of the resin alone is low, it is usually used by coating a fluororesin on an iron-based substrate. On the other hand, it is difficult for a fluororesin to secure an adhesive force with a base material. Furthermore, when a porous sintered metal is used as a base material, an anchor effect can be increased and a large effect in improving adhesion can be expected, so various sliding parts made of a porous sintered body have been proposed conventionally. [0003] The method for producing a sintered sliding material disclosed in Patent Document 1 includes the steps of sintering a porous molded body, immersing the obtained sintered body in a resin, and curing the resin. [0004] Furthermore, the sliding part material for a compressor of Patent Document 2 is man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/20F04C29/00F04C29/02F16C33/12
CPCF04C23/008F05C2253/20F16C33/201F04C18/0215F04C2230/22F16C2360/42Y10T428/249955Y10T428/249992Y10T428/249991F16C33/12F16C33/20F16C33/10F04C29/00
Inventor 大川刚义井尚志
Owner DAIKIN IND LTD