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Environment-friendly nanocrystallizing compound deep modifying method for metal materials

A metal material, nano-technology, applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problem that ordinary nitriding technology is difficult to meet the requirements and so on

Inactive Publication Date: 2015-08-19
郭伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, many products related to foreign countries require extremely high corrosion resistance, and it is difficult for ordinary nitriding technology to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Nanoization: First, under the action of elastic pre-stress, the tool head of the nano-tool assembly contacts the surface of the workpiece; secondly, the plasticity of the metal material of the workpiece is improved under the action of high-energy and high-density nano-energy; thirdly , the tool head impacts the surface of the part at a frequency of 30,000 to 50,000 times per second; fourth, the tool head processes the part with a certain processing trajectory (such as: machine tool turning trajectory);

[0031] (2) Cleaning agent degreasing: place the workpiece in a container containing metal cleaning agent, use cotton yarn to clean the oil and dirt on the surface of the workpiece, and finally remove the cotton yarn sticking to the surface of the workpiece;

[0032] (3) Nitriding: first hoist the cleaned and derusted crucible into the nitriding furnace, then put the workpiece into the crucible, insert the temperature control couple into the crucible close to the cruc...

Embodiment 2

[0045] According to the method described in Example 1, but the base salt described in step (3) comprises the following components: sodium cyanate 80kg, Ce 2 CO 3 2kg, ZrO 2 2kg.

Embodiment 3

[0047] According to the method described in Example 1, but the base salt described in step (3) comprises the following components: sodium cyanate 80kg, Ce 2 CO 3 2kg, CeO 2 2kg.

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PUM

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Abstract

The invention relates to an environment-friendly nanocrystallizing compound deep modifying method for metal materials, in particular to a brand new composite surface strengthening and modifying technology for the metal materials. The environment-friendly nanocrystallizing compound deep modifying method includes the steps of (1) nanocrystallizing; (2) detergent degreasing; (3) nitriding; (4) oxidizing; (5) desalting by cold water; (6) drying. The environment-friendly nanocrystallizing compound deep modifying method has a deep modifying effect, can form a high-quality nanocrystallized infiltrated layer with a certain depth and certain hardness on the surface of a workpiece and is capable of improving performance of the workpiece.

Description

technical field [0001] The invention relates to a nano-composite, environmental-friendly deep-layer modification method, in particular to a nano-composite, environmental-friendly deep-layer modification method for metal materials. Background technique [0002] The nano-composite environmental protection deep modification technology is based on retaining the original ordinary nitriding technology, adding the depth of the compound in the nano-processing process, so that it can be deepened from the original 10-25 μm to more than 40 μm. Nano-composite environmental protection deep modification technology includes salt bath or gas nitriding with a compound layer depth of more than 40 μm, or carbonitriding and subsequent salt bath or gas oxidation process, and a polishing process in between. Using this process to treat metal does not require spraying any protective materials, and the process is simple, low in cost, energy-saving, environmentally friendly and pollution-free, the wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/58
Inventor 郭伟
Owner 郭伟
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