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Powder metallurgy material, cross slip ring and manufacturing method of the cross slip ring

A technology for Oldham slip rings and manufacturing methods, which is applied in the field of metallurgy, can solve problems such as wear of Oldham slip rings, and achieve the effects of improving wear resistance, reducing manufacturing costs, and reducing wear

Active Publication Date: 2016-03-30
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a powder metallurgy material, an Oldham slip ring and a manufacturing method of the Oldham slip ring, so as to solve the problem of serious wear of the Oldham slip ring in the prior art

Method used

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  • Powder metallurgy material, cross slip ring and manufacturing method of the cross slip ring
  • Powder metallurgy material, cross slip ring and manufacturing method of the cross slip ring
  • Powder metallurgy material, cross slip ring and manufacturing method of the cross slip ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The copper powder that is 2.2% by weight, the graphite powder of 0.7%, the nickel powder of 0.5%, the molybdenum powder of 0.8%, the iron powder of 0.3% manganese powder and the iron powder of balance and weight are the above-mentioned powder metallurgy material weight 0.8% Zinc stearate is mixed to form a mixed powder; at room temperature, the mixed powder is extruded in an Oldham slip ring die to a density of 3.7g / cm with a pressing pressure of 600MPa 3 ; Sinter the extruded mixed powder at 1200°C for 60 minutes to form the Oldham slip ring blank; then pass steam into the Oldham slip ring blank at 340°C, and raise the temperature of the steam and the Oldham slip ring blank to 570°C and keep it warm 30 minutes; then the 570°C steam and the Oldham Oldham blank were cooled to 540°C, and kept at 540°C for 90 minutes to obtain the powder metallurgy Oldham Oldham of Example 1.

Embodiment 2

[0039] Mix 2.2% copper powder, 0.2% phosphorus powder, 0.7% graphite powder, 0.5% nickel powder, 0.8% molybdenum powder, 0.3% manganese powder and the rest iron powder to form a mixed powder ; Extrude the mixed powder in the Oldham slip ring mold with an extrusion pressure of 600MPa at 65°C to a density of 3.7g / cm 3 ; Sinter the extruded mixed powder at 1200°C for 60 minutes to form the Oldham slip ring blank; then pass steam into the Oldham slip ring blank at 340°C, and raise the temperature of the steam and the Oldham slip ring blank to 570°C and keep it warm 30 minutes; then the 570°C steam and the Oldham Oldham blank were cooled to 540°C, and kept at 540°C for 90 minutes to obtain the powder metallurgy Oldham Oldham ring of Example 2.

Embodiment 3

[0041] The copper powder that is 2.2% by weight, the phosphorus powder of 0.4%, the graphite powder of 0.7%, the nickel powder of 0.5%, the molybdenum powder of 0.8%, the iron powder of 0.3% manganese powder and the balance and the weight of the above powder Metallurgical materials with 0.8% zinc stearate by weight are mixed to form a mixed powder; at room temperature, the mixed powder is extruded in the Oldham slip ring die to a density of 3.7g / cm with a pressing pressure of 600MPa 3 ; Sinter the extruded mixed powder at 1200°C for 60 minutes to form the Oldham slip ring blank; then pass steam into the Oldham slip ring blank at 340°C, and raise the temperature of the steam and the Oldham slip ring blank to 570°C and keep it warm 30 minutes; then the 570°C steam and the Oldham Oldham blank were cooled to 540°C, and kept at 540°C for 90 minutes to obtain the powder metallurgy Oldham Oldham ring of Example 3.

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Abstract

The invention provides a powder metallurgy material, a cross slip ring and a manufacturing method of the cross slip ring. The powder metallurgy material comprises the following components in percentage by weight: 1.5-3.0% of copper, 0-0.6% of phosphorus, 0.5-1.0% of graphite, 0.5-2.0% of nickel, 0.5-1.0% of molybdenum, 0.3-0.6% of manganese, 0-0.2% of sulphur and 92-96% of ferrum. The components of the powder metallurgy material provided by the invention are wide in source and low in cost, so that the manufacturing cost of the product is greatly lowered. The powder metallurgy material through metallurgical treatment forms products in different shapes, and the hardness and strength of the products are remarkably improved compared with those of existing aluminum alloy products. The powder metallurgy material is good in wear resistance, so that a series of problems caused by abrasion are avoided.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a powder metallurgy material, an Oldham slip ring and a manufacturing method of the Oldham slip ring. Background technique [0002] When two parts in contact with each other have relative motion or relative motion tendency, friction will be generated on the contact surface, resulting in corresponding wear. The magnitude of friction directly reflects the level of power consumption, and the quality of wear performance determines the length of life of parts or the whole machine. Therefore, reducing the friction between the contact surfaces of parts and improving the wear resistance of materials is of great significance to improving the reliability of the whole machine. [0003] Taking the work of the Oldham slip ring in the compressor as an example, the Oldham slip ring is one of the key components of the scroll compressor, and its function is to convert the rotational motion of the crank...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/16F04C18/02B22F3/16
Inventor 史正良陈定川薛鹏飞
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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