Combined analytical method for 8-element in aluminium alloy

A technology of aluminum alloy and analysis method, which is applied in the direction of material analysis through observation of the influence of chemical indicators, analysis through chemical reaction of materials, color/spectral characteristic measurement, etc., can solve difficult problems and achieve reduction The effect of matrix interference

Active Publication Date: 2006-09-13
向良鑫
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Problems solved by technology

[0022] To sum up, as far as the analysis method of 8 elements in aluminum alloy is concerned, there is no systematic and perfect spectrophotometric method in China at present, especially the spectrophotometric method for Mg and Zn is relatively difficult and is a technical blank

Method used

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  • Combined analytical method for 8-element in aluminium alloy
  • Combined analytical method for 8-element in aluminium alloy
  • Combined analytical method for 8-element in aluminium alloy

Examples

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Embodiment Construction

[0096] 1. The selection of standard samples (i.e. fixed value standard samples) for analyzing unknown samples:

[0097] Select several standard samples of the same brand and the sample to be tested under the same conditions for analysis at the same time, select the standard sample with a small error and analyze the sample under the same conditions for analysis, if necessary, select a known sample that is basically the same as the matrix composition of the sample for comparison Analyze and verify. When necessary, verification is also required between standard samples.

[0098] For example, the ZL101-2# standard sample can be used as the fixed value standard sample for analyzing ZL101, ZL101A, A356.0 and other brand samples.

[0099] 2. The selection principle of test solution pipetting volume:

[0100] because ΔC C 5 % , In the measurement, the transmittance is generally controlled at 10%-80...

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Abstract

A method for integrally analyzing eight elements in aluminium alloy includes weighing test sample once for testing eight elements of Si, Mg, Cu, Mn, Zn,Ti and Ni; applying direct comparison means calculate and process test sample for directly printing out test result by instrument; using only one operator to finish work from weighing test sample to reporting out analysis result of eight element in 5 - 6 hours; rechecking or arbitrating eight element analysis result done by photoelectric direct - read spectrograph.

Description

1. Technical field: [0001] The invention belongs to the field of chemical analysis of metal elements, in particular to the technical field of spectrophotometric analysis (Si, Fe, Mg, Cu, Mn, Zn, Ti, Ni). The aluminum alloys described in the present invention are cast aluminum alloys and die-cast aluminum alloys. 2. Background technology: [0002] 1. The chemical analysis method of aluminum and aluminum alloy (GB / T6987-2001), the analysis method of 8 elements is listed as follows: [0003] (1) GB / T6987.6-2001, molybdenum blue spectrophotometric determination of silicon content. [0004] (2) GB / T6987.4-2001, spectrophotometric determination of iron content by o-phenanthroline. [0005] (3) GB / T6987.2-2001, oxalodihydrazide spectrophotometric determination of copper content. [0006] (4) GB / T6987.7-2001, Potassium Periodate Spectrophotometric Determination of Manganese Content. [0007] (5) GB / T6987.12-2001, Determination of titanium content by diantipyridine methane spectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/31G01N21/25
Inventor 向良鑫
Owner 向良鑫
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