Amorphous alloy strip surface cleaning method and amorphous alloy strip

A technology for the surface of amorphous alloys and strips, which is applied in the direction of building components, slender components, etc., can solve the problems such as the influence of coating coating process, achieve good cleaning effect and enhance the effect of adhesion

Pending Publication Date: 2022-07-12
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to overcome the problem that the coating process is affected by the removal of residual cutting fluid or oil stains on the surface of the existing amorphous alloy strip, and proposes a Surface cleaning method of amorphous alloy strip with good cleaning effect, thorough cleaning and ability to increase surface friction and enhance adhesion to coating and amorphous alloy strip

Method used

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  • Amorphous alloy strip surface cleaning method and amorphous alloy strip
  • Amorphous alloy strip surface cleaning method and amorphous alloy strip
  • Amorphous alloy strip surface cleaning method and amorphous alloy strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this embodiment, the Fe-based amorphous alloy strips rolled to a width of 40 mm are cleaned by the above cleaning method. The cleaning process is set as: alkaline washing -> water washing -> alcohol washing. The alkaline washing solution adopts NaOH solution, the pH value is 8, and 5% surfactant is added to the alkaline washing solution to accelerate the removal of oil stains. The cleaning process adopts ultrasonic cleaning. The surface morphology of the amorphous alloy strip before and after cleaning was compared by SEM observation, such as figure 2 , 3 As shown in the figure, there is a lot of dirt on the surface of the strip that has not been cleaned. In the black dots in the figure, the surface of the cleaned amorphous alloy strip is clean and free of dirt.

Embodiment 2

[0047] In this example, the Fe-based amorphous alloy strip cleaned in Example 1 is cleaned twice, and the cleaning process is: pickling->water-washing->alcohol-washing. The pickling solution is a phosphoric acid solution with a pH value of 6. Use a micrometer to measure the difference between the thickness of the strip at the pitted position and the position without pitting, and the height of the pitting can be calculated. Before pickling, the pit height was 1.5 μm, and after pickling, the pit height was 0.5 μm, indicating that the sharp corners of the pits were obtuse. The obtuse pitting will prevent the subsequent coating from causing discontinuity of the coating due to sharp protrusions, and improve the insulating ability, as shown in Table 1 (testing 100 points).

[0048] Table 1 Number of coating insulation points before and after pickling

[0049] Coating before pickling Coating after pickling Number of insulation points 8 20

Embodiment 3

[0051] This example compares the effect of ultra-thin coating on Fe-based amorphous alloy strips before and after cleaning. The Fe-based amorphous alloy strip was 16 μm thick and was roll cut into strips with a width of 40 mm. The cleaning process selection is: alkaline washing -> water washing -> alcohol washing -> acid washing -> water washing -> alcohol washing. Among them, the alkaline washing solution is a NaOH solution with a pH value of 8, and 5% of surfactant is added, and the constant temperature of the alkaline washing solution is 50°C. The pickling solution is a phosphoric acid solution with a pH of 6, and the constant temperature is 20°C. The water washing solution was deionized water at a temperature of 20°C. The alcohol washing solution adopts ethanol, and the temperature is 20 ℃. All cleaning procedures are carried out by ultrasonic cleaning.

[0052] The cleaned and uncleaned rolling shear belts are respectively coated with the equipment described in the pa...

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Abstract

The invention discloses an amorphous alloy strip surface cleaning method and an amorphous alloy strip, and belongs to the field of amorphous alloy strip processing. According to the technical scheme, the method sequentially comprises an alkali washing step and an acid washing step, ultrasonic cleaning is utilized during cleaning, the PH value of the alkali washing step is 7-10, the temperature of an alkali washing solution is 40-60 DEG C, the PH value of the acid washing step is 4-7, and the temperature of the acid washing solution is 10-25 DEG C. The amorphous alloy strip surface cleaning agent is applied to the aspect of amorphous alloy strip surface cleaning, solves the problem that the coating process of a coating is affected due to removal of residual cutting fluid or oil stains on the surface of an existing amorphous alloy strip, and has the characteristics of being good in cleaning effect, thorough in cleaning and capable of increasing the surface friction force and enhancing the adhesive force to the coating.

Description

technical field [0001] The invention belongs to the field of amorphous alloy strip processing, and particularly relates to a surface cleaning method of an amorphous alloy strip and an amorphous alloy strip. Background technique [0002] Various annular or rectangular magnetic cores made of amorphous alloys are basically formed by winding, and the inner and outer diameters can be controlled by winding the lining and the thickness of the winding, and the height of the magnetic core is the width of the amorphous alloy. In order to meet the height and size requirements of various magnetic cores, the amorphous alloy strip needs to be rolled and cut into strips before being wound into various types of magnetic cores, so that the strips can be divided into a specified width. However, the tools used in hobbing shears may have residual cutting fluid or oil due to grinding and reducing wear. The residual cutting fluid or oil will adhere to the surface of the amorphous alloy strip dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/02C23G1/14F16S3/00
CPCC23G1/02C23G1/14F16S3/00
Inventor 李晓雨王泽凡杨东车贵迪金鹏许哲杨建成付盺
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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