Electric pure iron and electric pure iron part surface anti-oxidation treatment method

An electrical pure iron, anti-oxidation technology, applied in the field of surface treatment, can solve the problems of electrical pure iron being easy to rust, difficult to store, etc., and achieve the effects of reducing cost and time, being less prone to oxidation and rusting, and having good application prospects.

Active Publication Date: 2017-02-15
成都凯赛尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of easy rusting and difficult storage of electrical pure iron and its parts in the high temperature and humid environment, and to provide a kind of electrical pure iron and its parts. Surface anti-oxidation treatment method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides an anti-oxidation treatment method for the surface of electrical pure iron and its parts, including 1) machining; 2) parts inspection; 3) parts cleaning and 4) vacuum packaging.

[0030] Among them, 3) parts cleaning steps are: polishing liquid configuration - degreasing - mirror polishing - electrochemical polishing - emergency water rinsing - deionized water immersion - ultrasonic cleaning - drying.

[0031] Among them, in the steps of machining and parts inspection, the process of storage and transfer is protected by anti-rust oil.

[0032] Parts inspection step conditions: room temperature is 20 ℃, humidity is 50%;

[0033] Polishing solution configuration: put chromium trioxide into an electric fryer, pour phosphoric acid into it, heat the mixture to 70 °C, stir well until chromium trioxide is fully and evenly dissolved, wherein the mass ratio of chromium trioxide to phosphoric acid is 1:40 ;

[0034] Degreasing: add the parts into degreasi...

Embodiment 2

[0043] Similar to Example 1, the difference is:

[0044] Parts inspection step conditions: room temperature is 25 ℃, humidity is 30%;

[0045] Polishing liquid configuration: the mixture of chromium trioxide and phosphoric acid is heated to 80 ℃, and the mass ratio of chromium trioxide and phosphoric acid is 1:50;

[0046] Degreasing: add the parts into degreasing solution, heat to 90 °C for 30 min, and the degreasing solution consists of 1000 ml water and 66.66 g alkaline degreasing agent;

[0047] Electrochemical polishing: use φ1.0 stainless steel wire to fix the parts;

[0048] Emergency water flushing: the flow rate of tap water is 40 L / min, and the flushing time is 1 min;

[0049] Immersion in deionized water: Put the parts rinsed with emergency water into deionized water with a conductivity of 5 μS / cm, immerse them in deionized water for 3 minutes, and then place them in deionized water at 80 °C for 1 minute;

[0050] Ultrasonic cleaning: The time of ultrasonic clean...

Embodiment 3

[0054]Similar to Example 1, the difference is:

[0055] Parts inspection step conditions: humidity is 40%;

[0056] Polishing liquid configuration: the mixture of chromium trioxide and phosphoric acid is heated to 75 ℃, and the mass ratio of chromium trioxide and phosphoric acid is 1:45;

[0057] Degreasing: add the parts into degreasing solution, heat to 80 °C, and treat for 35 min. The degreasing solution consists of 1000 ml of water and 60 g of alkaline degreaser;

[0058] Emergency water flushing: the flow rate of tap water is 35 L / min, and the flushing time is 2 minutes;

[0059] Immersion in deionized water: Put the parts rinsed with emergency water into deionized water with a conductivity of 10 μS / cm, immerse them in deionized water for 2 minutes, and then place them in deionized water at 75 °C for 2 minutes;

[0060] Ultrasonic cleaning: The time of ultrasonic cleaning is 40 min and the frequency is 45 Hz;

[0061] Drying: the temperature is 60 °C, and the drying ti...

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Abstract

The invention provides an electric pure iron and an electric pure iron part surface anti-oxidation treatment method in order to solve the problems that the electric pure iron is likely to be rusted in the high-temperature moist environment. The method comprises the first step of machining, the second step of part inspection, the third step of part cleaning and the fourth step of vacuum packaging, wherein the step of part cleaning comprises the substeps of preparation of a polishing solution, oil removal, mirror polishing, electrochemical polishing, rapid water washing, deionized water dipping, ultrasonic cleaning and drying. By means of the method, the cost spent by enterprises for producing electric pure iron parts can be greatly reduced, the electric pure iron and the electric pure iron parts which are subjected to surface anti-oxidation treatment are not likely to be oxidized or rusted under high-temperature moist conditions, and the cost and time spent for repeated treatment of the electric pure iron parts can be effectively saved; and meanwhile, the electric pure iron parts treated through the method can meet using requirements of electric vacuum devices, and using of the electric pure iron in the electric vacuum field is effectively popularized.

Description

technical field [0001] The invention relates to the technical field of surface treatment, and relates to a surface treatment and purification technology of electrical pure iron and its parts, in particular to an anti-oxidation treatment method for the surface of electric pure iron and its parts. Background technique [0002] Electrical pure iron, also known as industrial pure iron, is a high-quality steel with an iron content of more than 99.5%. Electrical pure iron is particularly soft, tough, and has good electromagnetic properties. Industrial pure iron has a higher melting point than iron, and is harder to rust than iron in humid air, but in a high-heat and humid environment, electrical pure iron is still very easy to produce rust. Due to the soft texture of electrical pure iron, once rust stains are formed, it is easy to form deep corrosion pits on the surface of the parts, especially in high temperature and humid environments. Such rust stains can be purified and deru...

Claims

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Application Information

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IPC IPC(8): C23F3/06C25F3/24C23F17/00C23F15/00
CPCC23F3/06C23F15/00C23F17/00C25F3/24
Inventor 刘斌张晓梅黎花曾春辉冯家豪
Owner 成都凯赛尔科技有限公司
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