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Nano-level coating iron powder

A nano-scale, iron powder technology, applied in the direction of coating, etc., can solve the problems of poor coating effect and achieve the effect of increasing vividness, strong adhesion and improving efficacy

Inactive Publication Date: 2007-05-30
王惠民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a nanoscale coating iron powder in order to solve the problem that the coating effect of the coating is poor due to the ordinary quality of the additives in the existing coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: A nano-scale coating iron powder, which is realized by the following method, under the condition of 10 ° C, and then high-speed cutting of iron powder particles, and the frequency of high-frequency cutting is set at 4500 times per minute. Nano iron powder. Sort (10μm as an example) D3=150nm D25=1μm D50=5μm D75=10μm D97=15μm S, S, A=0.1 powder materials with relatively dispersed particle distribution, 3% pure powder should be added during processing. Oxygen, an oxide layer with a thickness of 3nm-12nm is formed on the surface of the metal powder particles. In a high-temperature tunnel furnace, the temperature is adjusted to 350°C, and the inert gases N and He with a dew point ≤6-10 are injected in a volume ratio of 4:6. The injection time is controlled within 30 minutes to 45 minutes, so that the inert gas can fully penetrate into the oxide layer on the surface of the metal powder material, so that an anti-oxidation protective layer with a thickness of 2nm-3m ...

Embodiment 2

[0014] Example 2: A nano-scale coating iron powder, which is realized by the following method, under the condition of 25 ° C, and then high-speed cutting of iron powder particles, and the frequency of high-frequency cutting is set at 5,000 times per minute. Nano iron powder. Sort (10μm for example) D3=150nm D25=1μm D50=5μm D75=10μm D97=15μm S, S, A=0.1 powder materials with relatively dispersed particle distribution, 20% pure powder should be added during processing. Oxygen, an oxide layer with a thickness of 8nm-12m is formed on the surface of the metal powder particles. In a high-temperature tunnel furnace, the temperature is adjusted to 510°C, and inert gases N and He with a dew point ≤ 6-10 are injected in a ratio of 4:6. The time is controlled between 30 minutes and 45 minutes, so that the inert gas can fully penetrate into the oxide layer on the surface of the metal powder material, so that an anti-oxidation protective layer with a thickness of 2m-3nm is formed on the su...

Embodiment 3

[0015] Example 3: A nano-scale coating iron powder, which is realized by the following method. Under the condition of 15 ° C, the iron powder particles are then cut at a high speed, and the frequency of high-frequency cutting is set at 4700 times per minute. Nano iron powder. Sort (10μm as an example) D3=150nm D25=1μm D50=5μm D75=10μm D97=15μm S, S, A=0.1 particle distribution powder materials, 15% pure oxygen should be added at the same time of processing. An oxide layer with a thickness of 8nm-12nm is formed on the surface of the metal powder particles. In a high-temperature tunnel furnace, the temperature is adjusted to 400°C, and inert gases N and He with a dew point of ≤6-10 are injected at a ratio of 4:6(V). The time is controlled at 35 minutes, so that the inert gas can fully penetrate into the oxide layer on the surface of the metal powder material, so that an anti-oxidation protective layer with a thickness of 2nm-3nm is formed on the surface of the metal powder mater...

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Abstract

It relates to a nanometer iron powder production. It solves the problem of mediocre quality of the additive to result of poor coating of the paint. In 10DEG C-25DEG C temperature, quickly cutting nanometer metal grain to generate powder, forming oxidized layer at the surface of the metal powder grain by the filled oxygen, filling inert gases like N and He in the high temperature tunnel oven, permeating inert gas to the oxidization layer of the metal powder material, forming a thin oxidization prevention layer with thickness of 2nm-3nm. It dissolves poisonous gas in the air, good hydrophobicity, easy to be washed, strong adhering force, and antifreezing ability.

Description

technical field [0001] The invention relates to a production technology of nano-iron powder, in particular to a nano-scale coating iron powder. Background technique [0002] At present, various architectural coatings sold in the market have different degrees of high surface tension, poor adhesion, washability, acid resistance, easy adhesion to dirt, poor hydrophobicity, weak dust resistance, and short lifespan, etc. question. my country's annual housing completion area is about 1.8 billion square meters, with an annual growth rate of about 3%. If the buildings of 1.8 billion square meters are all decorated with architectural coatings, a total of nearly 3 million tons of architectural coatings will be required, which is a market of about 20 billion to 30 billion yuan. At present, the annual output of architectural coatings in my country is only more than 600,000 tons. The world's total annual output of coatings is 25 million tons. Each person consumes 4 kg per year, which i...

Claims

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Application Information

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IPC IPC(8): B22F1/02B22F9/04
Inventor 王惠民
Owner 王惠民
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