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Method for analyzing surface silver coating components of high-temperature alloy GH4169 part

A technology of GH4169 and high-temperature alloys, which is applied in the direction of material excitation analysis and preparation of test samples, which can solve the problems of cumbersome analysis process and so on

Active Publication Date: 2013-04-24
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing silver-plated analysis methods include atomic absorption method and spectrophotometry. When these methods are used to analyze the chemical composition of the silver-plated layer on the surface of a superalloy GH4169, each element in the silver-plated layer needs to be measured separately. Elements need to go through different pre-processing processes, resulting in cumbersome analysis process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In this embodiment, the composition of the silver-plated layer on the surface of a part made of superalloy GH4169 is analyzed, mainly analyzing the content of four elements of copper, iron, lead, and bismuth in the silver-plated layer, and then calculating the silver content in the silver-plated layer.

[0022] The method steps of the present embodiment are as follows:

[0023] Step 1: Immerse the part test piece in the superior pure nitric acid solution of 1+9 for 5 minutes, clean the dirt on the surface of the part test piece, then remove the part test piece, rinse it with distilled water, and then use ether to test the part. The surface of the sheet is cleaned, and after cleaning, the part test piece is dried and weighed to obtain a weight M=30.25 grams;

[0024] Step 2: Immerse the part test piece treated in step 1 in the 1+2 nitric acid solution, take out the part test piece after the silver layer on the surface of the part test piece is dissolved, fully rinse the ...

Embodiment 2

[0035] In this embodiment, the composition of the silver-plated layer on the surface of a part made of superalloy GH4169 is analyzed, mainly analyzing the content of four elements of copper, iron, lead, and bismuth in the silver-plated layer, and then calculating the silver content in the silver-plated layer.

[0036] The method steps of the present embodiment are as follows:

[0037] Step 1: Immerse the part test piece in the superior pure nitric acid solution of 1+10 for 8 minutes, clean the dirt on the surface of the part test piece, then remove the part test piece, rinse it with distilled water, and then use ether to test the part. The surface of the sheet is cleaned, and after cleaning, the part test piece is dried and weighed to obtain a weight M=35.31 grams;

[0038] Step 2: Immerse the part test piece treated in step 1 in the nitric acid solution of 1+3, take out the part test piece after the silver layer on the surface of the part test piece is dissolved, fully rinse ...

Embodiment 3

[0049] In this embodiment, the composition of the silver-plated layer on the surface of a part made of superalloy GH4169 is analyzed, mainly analyzing the content of four elements of copper, iron, lead, and bismuth in the silver-plated layer, and then calculating the silver content in the silver-plated layer.

[0050] The method steps of the present embodiment are as follows:

[0051] Step 1: Immerse the part test piece in the superior pure nitric acid solution of 1+12 for 10 minutes, clean the surface dirt of the part test piece, then remove the part test piece, rinse it with distilled water, and then use ether to test the part. The surface of the sheet is cleaned, and after cleaning, the part test piece is dried and weighed to obtain a weight M=28.69 grams;

[0052] Step 2: Immerse the part test piece treated in step 1 in the nitric acid solution of 1+5, take out the part test piece after the silver layer on the surface of the part test piece is dissolved, fully rinse the pa...

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Abstract

The invention provides a method for analyzing the surface silver coating components of a high-temperature alloy GH4169 part. According to the invention, first, a part test piece is cleaned; a surface silver coating is dissolved, and a sufficient amount of dilute hydrochloric acid is added to the solution, such that a precipitate is formed; after the volume is metered, the supernatant is adopted as a sample solution; a blank contrast solution and a calibration solution are prepared; and the sample solution, the blank contrast solution and the calibration solution are detected by using an inductively coupled plasma atomic emission spectrometer, such that the component contents of the surface silver coating of the part test piece are obtained. According to the invention, various elements canbe detected simultaneously with a single time of sample pretreatment. Further, the single time of sample pretreatment is more convenient than pretreatment processes of existing methods.

Description

technical field [0001] The invention relates to the technical field of material detection, in particular to a method for analyzing the composition of a silver-plated layer on the surface of a superalloy GH4169 part. Background technique [0002] As a metal with stable chemical properties and not easy to react with air, silver has good anti-oxidation and anti-corrosion effects. Moreover, silver has good ductility and is a metal with excellent electrical and thermal conductivity. Therefore, silver plating on the surface of parts can play a very good role in conductivity, oxidation resistance, corrosion resistance, adhesion prevention and aesthetics. By analyzing the composition of the silver-plated layer on the surface of the part, the effect of the silver-plated layer can be considered, and whether the silver purity of the silver-plated layer meets the requirements or whether there are other substances mixed into the silver-plated layer during the silver-plated process, so a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/62G01N1/34G01N1/44
Inventor 李骏涛刘朝岳航赵勇郭子静
Owner AECC AVIATION POWER CO LTD
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