Composition for repairing surfaces of metallic rubbing pairs and preparation thereof

A composition and friction pair technology, which is applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of ineffective control of metal friction pair gaps and limited repair film thickness, so as to reduce the difficulty of repair technology and reduce maintenance labor intensity , the effect of improving life expectancy

Inactive Publication Date: 2009-04-22
三亚圣龙新材料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the thickness of the repair film formed by the existing repair materials is limited, less than 0.5 mm, and the gap between the metal friction pairs cannot be effectively controlled, the present invention further provides a combination for repairing the surface of the metal friction pairs substances and their preparation methods

Method used

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specific Embodiment approach 1

[0016] Specific embodiment one: The composition for repairing the surface of the metal friction pair described in this embodiment consists of 5 to 10 parts by weight of nickel chloride powder (NiCl 2 ·6H 2 O), 5-10 parts of aluminum powder (Al), 20-30 parts of nickel powder (Ni), 15-20 parts of ferric oxide powder (Fe 2 o 3 ), 5-10 parts of silica powder (SiO 2 ), 2 to 5 parts of powder suspending agent, 0.5 to 1 part of surface modifier and 14.5 to 47 parts of mineral lubricating oil; the nickel chloride powder (NiCl 2 ·6H 2 O) has a particle size of 0.5 to 2 microns, the aluminum powder (Al) has a particle size of 20 to 100 nanometers, the nickel powder (Ni) has a particle size of 100 to 200 nanometers, and the ferric oxide powder (Fe 2 o 3 ) has a particle size of 50 to 200 nanometers, and the silica powder (SiO 2 ) has a particle size of 100 microns to 200 nanometers.

specific Embodiment approach 2

[0017] Specific embodiment two: The composition of repairing the metal friction pair surface described in this embodiment consists of 5.5 to 9.5 parts of nickel chloride powder, 5.5 to 9.5 parts of aluminum powder, 21 to 29 parts of nickel powder, 16 to 9 parts by weight. It consists of 19 parts of ferric oxide powder, 5.5-9.5 parts of silicon dioxide powder, 2.5-4.5 parts of powder suspending agent, 0.55-0.95 parts of surface modifier and 16-45 parts of mineral lubricating oil. Other steps are the same as in the first embodiment. The composition of this embodiment is suitable for metal friction pairs in mechanical equipment, and the composition can determine the thickness of the repairing modified layer according to the gap between the metal friction pairs.

specific Embodiment approach 3

[0018] Specific embodiment three: the particle size of the nickel chloride powder described in this embodiment is 0.6-1.9 microns, the particle size of the aluminum powder is 30-90 nanometers, the particle size of the nickel powder is 110-190 nanometers, the three The particle size of the ferric oxide powder is 60-190 nanometers, and the particle size of the silicon dioxide powder is 300 nanometers-90 microns. Other steps are the same as in the first embodiment. The composition of this embodiment is suitable for metal friction pairs in mechanical equipment, and the composition can determine the thickness of the repairing modified layer according to the gap between the metal friction pairs.

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Abstract

The invention provides a composition for restoring the surface of a metallic rubbing pair and a preparation method thereof, and relates to the composition for restoring the surface of the metallic rubbing pair and the preparation method thereof. The invention solves the problem that the restoring film formed by the prior restoring material has limited thickness which can not reach over 0.5 millimeter and can not effectively control the clearance between the metallic rubbing pair. The composition consists of nickelous chloride powder, aluminum powder, nickel powder, ferric oxide powder, silicon dioxide powder, a powder suspending agent, a surface modifier and mineral lubricating oil. The preparation method is to put the nickelous chloride powder, the aluminum powder, the nickel powder, the ferric oxide powder, the silicon dioxide powder, the powder suspending agent, the surface modifier and the mineral lubricating oil in a high-speed viscolizer to be homogenized for 30 to 40 minutes. The composition for restoring the surface of the metallic rubbing pair and the preparation method thereof realize restoring modification to the surface of the metallic rubbing pair of which a restoration layer reaches 1.5 millimeters, and effectively control the clearance between the metallic rubbing pair.

Description

technical field [0001] The invention relates to a composition for repairing the surface of a metal friction pair and a preparation method thereof. Background technique [0002] When the metal friction pair is working, surface wear will inevitably occur. When the wear reaches a certain level, the metal friction pair will fail due to surface wear and must be replaced or repaired to make the equipment work normally. At present, the surface of the metal friction pair is repaired by spray welding, spray coating, electroplating, and electric brushing, and the thickness of the repair layer can reach more than 0.5mm; surface strengthening modification technologies such as vapor deposition, surface quenching, chemical heat treatment, and ion implantation can strengthen the modification. Some metal surfaces can also be deposited to form a film on the metal surface, but the thickness of the repair is very limited, usually less than 1 micron, and will not significantly increase the geom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/00B23P6/00
Inventor 孙启龙
Owner 三亚圣龙新材料开发有限公司
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