Method for repairing metal frictional or worn surface and special mixing powder used thereby

A wear surface and mixed powder technology, which is applied in the repair of wear surface and the field of metal friction, can solve the problems of inconspicuous repair effect, unstable repair effect, limited scope of application, etc., and achieve broad application range, good economic and social benefits , Good safety and stability

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

[0007] In order to solve the problems of slow repairing speed, inconspicuous repairing effect, unstable repairing effect and limited scope of application in the existing methods for repairing metal friction and worn surfaces, the existing repairing materials lack the functions of cleaning and activating the metal surface The composition of the problem; and then provide a metal friction, repair method of worn surface and the special mixed powder in this method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014]Embodiment 1: The method for repairing metal friction and wear surfaces described in this embodiment is realized in accordance with the following steps: Step 1. Prepare mixed powder with functions of cleaning and activating metal friction and wear surfaces: 10-30 parts of nickel-coated diamond powder with a particle size of 0.1-10 microns and 10-20 parts of nickel chloride powder with a particle size of 0.1-10 microns are put into the ball mill jar, and the planetary ball mill is mechanically processed at a speed of 30-40 revolutions per minute. Homogenize (uniformly mix) for 20 to 30 minutes, then put 50 to 80 parts of magnesium stearate evenly into the ball mill according to the ratio of parts by weight, and mechanically homogenize at a speed of 60 to 100 revolutions per minute for 60 to 70 minutes, finally make the mixed powder of nickel-coated diamond powder, nickel chloride powder and magnesium stearate; Step 2, prepare the mixed powder with repairing function and th...

specific Embodiment approach 2

[0015] Specific embodiment 2: In step 3 of this embodiment, the mixed powder with the function of cleaning and activating metal friction and wear surfaces and lubricating oil or grease are added to the lubrication system of metal friction and wear surfaces in a weight ratio of 1 / 1000 In the lubricating oil or lubricating grease; in step 4, the mixed powder with the function of repairing and having the function of exothermic heat increase due to the reaction of the introduced material and lubricating oil or lubricating grease are added to the metal friction and wear at a weight ratio of 2 / 1000 Lubricating oil or grease in the lubrication system of the surface. Other steps are the same as in the first embodiment. Adopting this implementation mode is suitable for metal friction pairs with less pollutants on the wear surface and less wear amount.

specific Embodiment approach 3

[0016] Specific embodiment three: In step three of this embodiment, the mixed powder with the function of cleaning and activating metal friction and wear surfaces and lubricating oil or grease are added to the lubrication system of metal friction and wear surfaces in a weight ratio of 3 / 1000 In the lubricating oil or lubricating grease; in step 4, the mixed powder with repairing function and the function of exothermic heat increase due to the reaction of the introduced material and lubricating oil or lubricating grease are added to the metal friction and wear at a weight ratio of 5 / 1000 Lubricating oil or grease in the lubrication system of the surface. Other steps are the same as in the first embodiment. This implementation method is suitable for metal friction pairs with more pollutants on the wear surface and a large amount of wear.

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Abstract

The invention discloses a method for restoring the frictional surface and the wearing surface of metal and mixed powder specially used in the method and relates to a restoring method and mixed powder used in the method. The method solves the problems that the prior restoring method has slow restoring speed, unobvious restoring effect and the prior restoring material has no compositions which have the functions of cleaning and activating the metal surface. The method comprises the following steps: A mixed powder which has the functions of cleaning and activating the frictional surface and the wearing surface of the metal is prepared; B mixed power which has the functions of restoring and introducing a material, reacting, releasing heat and increasing heat energy is prepared; the A mixed powder is added into lube of the frictional surface and the wearing surface of the metal; and the B mixed powder is added into lube of the frictional surface and the wearing surface of the metal. The A mixed powder consists of nickel-clad diamond powder, nickelous chloride powder and magnesium stearate. The B mixed power consists of enstatite powder, calcium carbonate powder, rose aurora powder, nickel-clad aluminum powder, nickel iron alloy powder, yttria powder and magnesium stearate. The method and the mixed powder used in the method can achieve the aim of rapidly restoring the micro-disadvantages of the frictional surface and the macro-wearing disadvantages of the wearing surface of the metal.

Description

technical field [0001] The invention relates to a method for repairing metal friction and wear surfaces and special mixed powder in the method. Background technique [0002] Where there is friction, there is wear. Half of the materials in the world are consumed in wear. Most of the metal friction pairs in mechanical products fail due to surface wear. Only the surface wear exceeds the limit, and the worn part only accounts for a small part of the entire component. A small part will cause the entire part to be scrapped, and the loss caused by wear and tear is staggering. [0003] At present, technologies such as thermal spraying, spray welding, brushing, repair welding, and surfacing welding are used to repair the worn surface of the metal, so that it can compensate for the missing geometric dimensions and restore the working ability, which has achieved the purpose of saving materials and maintenance costs. However, these technologies are all offline processing, and the mecha...

Claims

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Application Information

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