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Copper-based powder metallurgy thrust ring and preparation method thereof

A powder metallurgy and thrust ring technology is applied in the field of copper-based powder metallurgy thrust ring and its preparation, which can solve the problems of poor green compact strength, high forming pressure and high production cost

Active Publication Date: 2011-11-02
HANGZHOU FADA GEARBOX GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall copper-based powder metallurgy thrust ring requires high molding pressure and poor compaction strength, and requires a lot of precious metal raw materials such as copper, tin, lead, etc., and the preparation method of the thrust ring is complicated and the production cost is high

Method used

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  • Copper-based powder metallurgy thrust ring and preparation method thereof
  • Copper-based powder metallurgy thrust ring and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a copper-based powder metallurgy thrust ring, the copper core plate 1 is sprayed with tin bronze powder Sn6-6-3 as the bonding layer 2, and the bonding layer 2 is composited with copper-based powder metallurgy Friction layer 3; the copper-based powder metallurgy anti-friction layer 3 is formed by fully mixing 8% tin powder, 2% lead powder, 1% graphite powder and the rest copper powder. The thickness of the tin bronze powder bonding layer is 0.07mm. The thickness of the finished copper-based powder metallurgy anti-friction layer 3 is 0.4mm.

[0034] A method for preparing a copper-based powder metallurgy thrust ring, comprising the following steps:

[0035] (1) Copper plating layer: Copper plating is carried out on the surface of the stamped steel core plate after derusting and degreasing, and the thickness of the plating layer is 0.01mm;

[0036] (2), Coating adhesive layer and composite copper-based powder metallurgy anti-friction ...

Embodiment 2

[0045] Example 2: as figure 1 As shown, a copper-based powder metallurgy thrust ring, the copper core plate 1 is sprayed with tin bronze powder Sn6-6-3 as the bonding layer 2, and the bonding layer 2 is composited with copper-based powder metallurgy Friction layer 3; the copper-based powder metallurgy anti-friction layer 3 is formed by fully mixing 9% tin powder, 3% lead powder, 1% graphite powder and the rest copper powder. The thickness of the tin bronze powder bonding layer is 0.08mm. The thickness of the finished copper-based powder metallurgy anti-friction layer 3 is 0.5mm.

[0046] A method for preparing a copper-based powder metallurgy thrust ring, comprising the following steps:

[0047] (1) Copper plating layer: Copper plating is carried out on the surface of the stamped steel core plate after derusting and degreasing, and the thickness of the plating layer is 0.013mm;

[0048] (2), Coating adhesive layer and composite copper-based powder metallurgy anti-frict...

Embodiment 3

[0057] Example 3: as figure 1 As shown, a copper-based powder metallurgy thrust ring, the copper core plate 1 is sprayed with tin bronze powder Sn6-6-3 as the bonding layer 2, and the bonding layer 2 is composited with copper-based powder metallurgy Friction layer 3; the copper-based powder metallurgy anti-friction layer 3 is formed by fully mixing 10% tin powder, 4% lead powder, 1% graphite powder and the rest copper powder. The thickness of the tin bronze powder bonding layer is 0.10 mm. The thickness of the finished copper-based powder metallurgy anti-friction layer 3 is 0.6 mm.

[0058] A method for preparing a copper-based powder metallurgy thrust ring, comprising the following steps:

[0059] (1) Copper plating layer: Copper plating is carried out on the surface of the stamped steel core plate after derusting and degreasing, and the thickness of the plating layer is 0.015mm;

[0060] (2), Coating adhesive layer and composite copper-based powder metallurgy anti-...

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Abstract

The invention discloses a copper-based powder metallurgy thrust ring and a preparation method thereof and in particular relates to a powder metallurgy thrust ring, a thrust bearing and other parts containing mixed ingredients of copper, tin, lead and graphite as well as a preparation method, wherein the parts are applied to marine gear cases. The copper-based powder metallurgy thrust ring comprises a copper core plate, wherein the copper core plate is coated with tin bronze powder serving as an adhesive bonding layer; the adhesive bonding layer is compounded with a copper-based powder metallurgy antifriction layer; and the copper-based powder metallurgy antifriction layer is obtained by fully mixing 8-10% of tin powder, 2-4% of lead powder, 1% of graphite powder and the balance of copper powder. The copper-based powder metallurgy thrust ring is obtained through the following steps: plating a copper layer; coating the adhesive bonding layer and a compound copper-based powder metallurgyantifriction layer; presintering; pressing an oil groove; resintering; and discharging. In the copper-based powder metallurgy thrust ring and the preparation method thereof, the thrust ring has the advantages of small shaping pressure and high compaction intensity, and manufacture cost is lowered; and the preparation method has the advantages of strong maneuverability and high finished product rate.

Description

technical field [0001] The invention relates to a copper-based powder metallurgy thrust ring and a preparation method thereof, in particular to powder metallurgy thrust rings, thrust bearings and other parts and preparation methods involving copper, tin, lead and graphite mixed components used in marine gearboxes. Background technique [0002] The copper-based powder metallurgy thrust ring in the prior art is formed by mixing copper, tin, lead alloy powder or single-element powder, pressing and sintering as a whole, without a core plate in the middle. The overall copper-based powder metallurgy thrust ring requires high molding pressure and poor compaction strength, and requires a lot of precious metal raw materials such as copper, tin, lead, etc., and the preparation method of the thrust ring is complicated and the production cost is high. Contents of the invention [0003] The present invention mainly solves the deficiencies in the prior art, and provides a novel comp...

Claims

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Application Information

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IPC IPC(8): F16C17/08F16C33/14F16H57/00B22F7/04
Inventor 杨朝良蔡建平钟云达
Owner HANGZHOU FADA GEARBOX GROUP
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