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Copper base sintered slide member

A technology of sliding parts and sintered layers, which is applied in the direction of anti-centrifugal force rotating parts, bearing elements, rolling resistance optimization, etc., to achieve the effect of excellent sliding characteristics

Inactive Publication Date: 2009-02-18
OILES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, the use of lead has to be given up in consideration of environmental issues and the like.

Method used

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  • Copper base sintered slide member
  • Copper base sintered slide member
  • Copper base sintered slide member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Among the electrolytic Cu powders with a particle size of 45μm or less, 10% by weight atomized Sn powder with a particle size of 45um or less, Mn powder with a particle size of 45μm or less and 6% by weight, and 5% by weight with a particle size of 150μm or less % Of natural graphite powder is put into the V-shaped mixer and mixed for 20 minutes to make a mixed powder. Fill the mixed powder in a metal mold at a molding pressure of 2ton / cm 2 Under compression molding, a flat plate-shaped compact is obtained. The compact was sintered in a heating furnace adjusted to a hydrogen atmosphere at a temperature of 760°C for 60 minutes. After cooling, it was machined to produce a square sintered sliding part with a side of 30 mm and a thickness of 5 mm. Next, the sintered sliding part is treated with oil to form an oily sintered sliding part.

Embodiment 2～5

[0026] In Example 1, except for changing the composition as shown in Tables 2 to 3, an oil-impregnated sintered sliding part was produced in the same manner as in Example 1.

Embodiment 6

[0042] Put Cu-10wt% Sn atomized alloy powder with a particle size of 45μm or less, 2.5wt% Mn powder with a particle size of 45μm or less, and 20wt% natural graphite powder with a particle size of 150um or less into the V type In the mixer, the mixture was mixed for 20 minutes to prepare mixed powder (Cu: 69.8% by weight, Sn: 7.7% by weight, Mn: 2.5% by weight, and graphite: 20% by weight). Fill the obtained mixed powder in a metal mold at a molding pressure of 4ton / cm 2 Under compression molding, a flat plate-shaped compact is obtained. The compact was sintered in a heating furnace adjusted to a hydrogen atmosphere at a temperature of 760°C for 60 minutes, and after cooling, mechanical processing was performed to prepare a square sintered sliding part with a side of 30 mm and a thickness of 5 mm.

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Abstract

A copper base sintered slide member is characterized by being composed of 0.5 to 20 wt.% tin, 0.1 to 35 wt.% manganese, 2 to 25 wt.% solid lubricant and the balance copper. Further, there is provided a double layer copper base sintered slide member consisting of a copper base alloy sintered layer and, unified therewith, a metal lining, characterized in that the copper base alloy sintered layer is composed of 0.5 to 20 wt.% tin, 0.1 to 35 wt.% manganese, 2 to 25 wt.% solid lubricant and the balance copper. These slide members are lead-free copper base sintered slide members, which exhibit slide performance equal to or superior to that of lead-containing copper base sintered slide members and can be appropriately used as oil-bearing sintered slide members. Moreover, the copper base sintered slide member can be appropriately used even in dry friction conditions or high-temperature region where use of lubricating oil is difficult, and the double layer sintered slide member exhibits excellent slide performance even in high-load conditions.

Description

Technical field [0001] The present invention relates to a copper-based sintered sliding part, and more specifically, to a copper-based sintered sliding part containing a solid lubricating material and a multilayer copper-based sintered sliding part. Background technique [0002] As copper-based sintered sliding parts (bearings), Cu-Sn-solid lubricating material-based sintered sliding parts containing solid lubricating materials such as graphite and lead are known. In addition, for the purpose of improving the load resistance, a multilayer sintered sliding member in which a sintered layer of the above-mentioned sintered material is integrally formed on the surface of a sleeve (gold-coated) such as a steel plate is known. For example, it is proposed that in a multilayer copper-based sintered sliding part composed of a multilayered integration of a copper-based alloy sintered layer and a steel plate bushing, the copper-based sintered bonding metal contains 1 to 11% by weight of tin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02B22F1/00B22F5/00B22F7/04C22C1/04C22C9/05C22C32/00F16C33/10F16C33/12
CPCC22C9/05B22F2998/10F16C2204/12C22C9/02C22F1/08Y02T10/865F16C33/121F16C33/10B22F7/08Y10T428/12139Y10T428/12063Y10T428/12903
Inventor 岩桥正一郎加藤和夫城崎武浩吉川隆
Owner OILES CORP
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