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Method for measuring band steel surface total residual and residual ferrous powder

A measurement method and technology of iron powder, which can be applied in the application of material absorption and weighing, material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc. Contaminate the effective area of ​​the steel plate, etc., to achieve the effect of ensuring accuracy

Active Publication Date: 2009-01-28
SHOUGANG CORPORATION
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Problems solved by technology

And the effective area of ​​the steel plate should not be polluted during the whole experiment, for example, touching with fingers, etc., which may affect the accuracy of the experimental results

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  • Method for measuring band steel surface total residual and residual ferrous powder

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Embodiment Construction

[0027] 1. Sampling:

[0028] Take four samples continuously, each piece of specification: plate width × 500mm; after cutting, put them flat, and put them in the following way:

[0029] The upper surface of the first board and the upper surface of the second board, the lower surface of the second board and the lower surface of the third board, the upper surface of the third board and the upper surface of the fourth board are stacked together in turn, taking the middle The two blocks are tested.

[0030] 2. Use methyl ethyl ketone to clean the residue on the board surface. The cleaning method is:

[0031] (1) 250ml beaker treatment: put the clean beaker (with zeolite inside) in an oven at 100°C for 1 hour at a constant temperature, then take it out and cool it at room temperature for 5 minutes, put it in a desiccator and cool it down to room temperature (about 30 minutes), Weigh to get G1.

[0032] (2) Place the steel plate to be tested horizontally on the table, select a rec...

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Abstract

The invention pertains to the field of metal material detecting and particularly provides a measuring method of total residues and residual iron powder on the strip surface. The measuring method of the invention is characterized in that a sampling mode that the upper surfaces of a first plate and a second plate, the lower surfaces of the second plate and a third plate, the upper surfaces of the third plate and a fourth plate are stacked together in sequence; when in measuring, two plates in the middle are taken to be detected. Butanone is used for cleaning the residues on the surface of the plate; a small amount of absorbent cotton is nipped by a tweezer to be dipped into little butanone so as to scrub the residues on the surface of the steel plate into a 250ml beaker till no dark mark can be scrubbed out by absorbent cotton; the absorbent cotton and the tweezer are washed by Ketone with small amount repeatedly to ensure accuracy of residues. When in analysis, total amount of residues is calculated by the formula: Oil(mg / m<2>single surface)=(G2-G1) / S, and the content of residual iron powder is calculated by the formula: Fe(mg / S<2> / single surface) is equal to V multiplied by C multiplied by 55.85 / 1.2 multiplied by 10<-1> multiplied by 2 multiplied by 10<-1>. The invention has the advantages that the effective area of a steel plate is ensured without being polluted when sampling is carried out and the effective area of the steel plate can not be polluted in the whole course of the experiment, thus ensuring the accuracy of the analysis result.

Description

Technical field: [0001] The invention belongs to the field of metal material detection, and in particular provides a method for measuring the total residue and residual iron powder on the surface of strip steel. Background technique: [0002] For the determination method of cold-rolled strip surface residue, until now, there is still no relevant standard and unified measurement method in the world. In the process of actually determining the content of residual iron powder, the difficulty in ensuring the accuracy of the analysis mainly lies in the three processes of sampling, cleaning and testing. First, it is necessary to ensure that sampling does not contaminate the effective area of ​​the steel plate. And the effective area of ​​the steel plate should not be polluted during the whole experiment, for example, touching with fingers, etc., which may affect the accuracy of the experimental results. Invention content: [0003] The purpose of the present invention is to prov...

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Application Information

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IPC IPC(8): G01N5/02G01N21/78
Inventor 王海全杨瑞峰熊爱明周建刘李斌张召恩滕华湘令狐克志周利刘光明李本海胡雄光
Owner SHOUGANG CORPORATION
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