Galvanized plate zinc mass detection method

A galvanized sheet, re-testing technology, applied in the direction of removing a certain component, weighing, etc., to achieve the effect of small loss, increased reliability, important practical value and scientific significance

Active Publication Date: 2019-01-15
TANGSHAN IRON & STEEL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The zinc weight detection of galvanized sheet is very important for galvanized sheet producers and galvanized sheet users. At present, there are few patents on the zinc layer weight detection of galvanized sheet. The zinc layer weight detection specified in the national standard generally uses instruments Analytical method and some chemical methods containing hydrochloric acid. The chemical method used in the national standard to detect zinc weight is generally a combination of hydrochloric acid and antimony trichloride, hydrochloric acid and hexamethylenetetramine. Although this method contains corrosion inhibitors, it is inevitable that there will be Part of the iron matrix reacts with hydrochloric acid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Adopt detection method of the present invention to detect Z80 galvanized sheet zinc weight specific steps are as follows:

[0038] (1) Prepare zinc-dissolving chemical reagents: add 100mL deionized water to the beaker, then add 120.0g potassium hydroxide, 8.7g disodium edetate, mix the solution thoroughly and heat to 80°C to stir evenly, then add 0.45g of triethanolamine, mixed and stirred for 3 minutes until uniform to obtain the zinc-dissolving chemical reagent, and then set aside;

[0039] (2) Galvanized sheet sample preparation: Wipe both sides of the galvanized sheet sample with 60mm diameter Z80 galvanized sheet disc with alcohol, blow it dry with a blower, and weigh it as M 1 , accurate to 0.1mg;

[0040] (3) Galvanized sheet sample zinc dissolution: put the weighed 60mm diameter Z80 galvanized sheet disc into the prepared zinc-dissolving chemical reagent, the liquid surface of the zinc-dissolving chemical reagent should not cover the galvanized sheet sample, S...

Embodiment 2

[0047] Adopt detection method of the present invention to detect Z100 galvanized sheet zinc weight specific steps are as follows:

[0048] (1) Prepare zinc-dissolving chemical reagents: add 100mL deionized water to the beaker, then add 112.0g potassium hydroxide, 8.1g disodium ethylenediaminetetraacetic acid, mix the solution thoroughly and heat to 80°C to stir evenly, then add 0.41g of triethanolamine, mixed and stirred for 2min until uniform to obtain the zinc-dissolving chemical reagent, and then set aside;

[0049] (2) Galvanized sheet sample preparation: Wipe both sides of the galvanized sheet sample with 60mm diameter Z100 galvanized sheet disc with alcohol, blow it dry with a blower, and weigh it as M 1 , accurate to 0.1mg;

[0050](3) Galvanized sheet sample zinc dissolution: put the weighed 60mm diameter Z100 galvanized sheet disc into the prepared zinc-dissolving chemical reagent, the liquid surface of the zinc-dissolving chemical reagent should not cover the galvan...

Embodiment 3

[0057] Adopt detection method of the present invention to detect Z120 galvanized sheet zinc weight specific steps are as follows:

[0058] (1) Prepare zinc-dissolving chemical reagents: add 100mL deionized water to the beaker, then add 116g potassium hydroxide, 8.6g disodium ethylenediaminetetraacetic acid, mix the solution thoroughly and heat to 80°C to stir evenly, then add 0.44 g of triethanolamine, mixed and stirred for 3min to obtain the zinc-dissolving chemical reagent evenly, and then for subsequent use;

[0059] (2) Galvanized sheet sample preparation: Wipe both sides of the galvanized sheet sample with 60mm diameter Z120 galvanized sheet disc with alcohol, dry it with a blower and weigh it as M 1 , accurate to 0.1mg;

[0060] (3) Galvanized sheet sample zinc dissolution: put the weighed 60mm diameter Z120 galvanized sheet disc into the prepared zinc-dissolving chemical reagent, the liquid surface of the zinc-dissolving chemical reagent should not cover the galvanized...

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PUM

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Abstract

The invention discloses a galvanized plate zinc mass detection method comprising the following steps of 1, preparing a soluble zinc chemical solvent; 2, preparing a galvanized plate sample; 3, puttingthe galvanized plate sample into the soluble zinc chemical solvent; and 4, computing the zinc mass of the galvanized plate sample. Compared with an existing chemical detection method, the galvanizedplate zinc mass detection method provided by the invention is smaller in loss degree of steel substrate, strong in zinc layer dissolving capacity and increased in reliability of data result; the usedsolvent is small in toxicity, the solution is simple to prepare, and the waste liquid is simple to process; the experimental expense is low, and the zinc mass result detection can be completed withoutpurchasing large instruments. The important practical value and scientific significance are provided for researchers for measuring the zinc mass of the galvanized plate.

Description

technical field [0001] The invention belongs to the field of zinc weight detection of a galvanized sheet, and in particular relates to a method for detecting the zinc weight of a galvanized sheet. Background technique [0002] The zinc weight detection of galvanized sheet is very important for galvanized sheet producers and galvanized sheet users. At present, there are few patents on the zinc layer weight detection of galvanized sheet. The zinc layer weight detection specified in the national standard generally uses instruments Analytical method and some chemical methods containing hydrochloric acid. The chemical method used in the national standard to detect zinc weight is generally a combination of hydrochloric acid and antimony trichloride, hydrochloric acid and hexamethylenetetramine. Although this method contains corrosion inhibitors, it is inevitable that there will be Part of the iron matrix reacts with hydrochloric acid. [0003] Considering that the zinc layer is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 孟凡月杜雁冰齐建群夏明生刘洁刘璐高杰赵江林魏焕君
Owner TANGSHAN IRON & STEEL GROUP
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