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Method for characterizing inclusions on section of stainless steel precision strip steel

A technology for stainless steel and inclusions, which is applied in the field of inclusion characterization of stainless steel precision strips, and can solve problems such as the inability to observe and characterize the morphology of inclusions

Pending Publication Date: 2021-08-20
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the thickness of the stainless steel precision strip is very thin, reaching a quarter of an A4 paper, it is impossible to observe and characterize the inclusion morphology of its cross-section with a traditional metallographic microscope

Method used

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  • Method for characterizing inclusions on section of stainless steel precision strip steel
  • Method for characterizing inclusions on section of stainless steel precision strip steel
  • Method for characterizing inclusions on section of stainless steel precision strip steel

Examples

Experimental program
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Effect test

Embodiment 1

[0051] (1) Sample preparation, process the stainless steel precision strip steel sample with a section thickness specification of 0.05 mm, and cut it into a long strip sample with a length of 25 mm and a width of 18 mm with scissors to meet the sample preparation requirements for inclusions ;

[0052] (2) Fix the sample, superimpose the processed 30 samples, align the cross-section of the sample with a length of 25 mm, put it into two stainless steel clips, and the aligned cross-section protrudes 1 mm from the end of the clip, and then Fasten the stainless steel clips with two pairs of screws and nuts to ensure that the aligned sections of the 30 samples are on one plane;

[0053] (3) Sample polishing, rough polishing, medium polishing, and fine polishing of the fixed sample section to achieve a mirror effect, cleaning and drying, to meet the analysis and detection requirements for inclusions;

[0054] (4) Analysis and detection, put the discarded sample into the EVO18 scanni...

Embodiment 2

[0056] (1) Sample preparation, process the stainless steel precision strip steel sample with a section thickness specification of 0.02 mm, and cut it into a long strip sample with a length of 30 mm and a width of 20 mm with scissors to meet the sample preparation requirements for inclusions ;

[0057] (2) Fix the sample, superimpose the processed 50 samples, align the section of the sample on the side with a length of 30mm, put it into two stainless steel clips, and the aligned section protrudes 1mm from the end of the clip, and then Fasten the stainless steel clips with two pairs of screws and nuts to ensure that the aligned sections of the 50 samples are on one plane;

[0058] (3) Sample polishing, rough polishing, medium polishing, and fine polishing of the fixed sample section to achieve a mirror effect, cleaning and drying, to meet the analysis and detection requirements for inclusions;

[0059] (4) Analysis and detection, put the discarded sample into the EVO18 scanning...

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Abstract

The invention discloses a characterization method of section inclusions of stainless steel precision strip steel. The characterization method comprises the following steps of S1, shearing the stainless steel precision strip steel into samples with preset sizes; S2, overlapping 30-50 pieces of samples together according to a mode of aligning cross sections on one side, placing the overlapped samples between two clamping pieces, enabling the aligned cross sections to extend out of the clamping pieces by a certain length, and fastening the clamping pieces; S3, carrying out polishing treatment on the aligned cross sections of the superposed samples; and S4, detecting and analyzing the inclusions in the polished superposed sample by adopting a scanning electron microscope. The method provided by the invention overcomes problems existing in the conventional metallographic microscope for observing the inclusions on the section of the stainless steel precision strip steel, realizes complete characterization of information such as microstructure, size, component content and the like of the inclusions on the section of the stainless steel precision strip steel, and can provide basic theoretical data for further in-depth research of the stainless steel precision strip steel.

Description

technical field [0001] The invention belongs to the technical field of inclusion characterization methods for iron and steel materials. Specifically, the invention relates to a method for characterization of inclusions in precision stainless steel strips. Method for characterization of cross-sectional inclusions in precision strip. Background technique [0002] The thickness specification range of stainless steel precision strip is different from that of conventional stainless steel sheet. It refers to the cold-rolled stainless steel strip with special ultra-thin specifications. The thickness range is generally between 0.02mm and 0.05mm, and the thickness below 0.05mm is called stainless steel foil. [0003] As a high-end product in the field of stainless steel plate and strip, stainless steel precision strip has excellent strength, precision, surface finish and other properties. It is widely used in aerospace, petrochemical, automobile, textile, electronics, home appliances...

Claims

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Application Information

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IPC IPC(8): G01N23/2202G01N23/2251
CPCG01N23/2202G01N23/2251
Inventor 卫海瑞张寿禄王斌赵振铎李俊廉晓洁徐梅李筱
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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