Method for detecting chemical components comprising nickel, chromium and manganese of stainless steel

Abstract

The invention discloses a method for detecting chemical components comprising nickel, chromium and manganese of stainless steel. The method comprises the following steps: (1) preparing a standard stainless steel solution; (2) preparing a mixed standard solution; and (3) carrying out an ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) detection method. By virtue of the method, series of standard stainless steel samples are used for establishing standard curves of the detected elements, and target elements are detected and determined by using the ICP-OES technology. The method focuses on the research of the detection of the contents of main elements Ni, Cr and Mn in the stainless steel. Compared with a current main detection method, the method according to the invention has the advantages that the standard stainless steel samples are used for establishing the standard curves of the detected elements, so that the matrix interference is fully removed, a detection result is relatively accurate, and the operation of preparing the standard sample solution is relatively simple and convent. The invention discloses a relatively accurate, simple and convenient method so as to provide detection basis for accurately detecting the chemical components of stainless steel products.

Description

technical field [0001] The invention belongs to the technical field of stainless steel, in particular to a method for detecting the chemical composition of nickel, chromium and manganese in stainless steel. Background technique [0002] Stainless steel materials are widely used in architectural decoration because of their resistance to weak corrosive media such as air, steam, water, and chemically corrosive media such as acids, alkalis, and salts, and are not prone to corrosion, pitting, rust, or wear. With the prosperity of the decoration market, stainless steel materials are favored, so people pay great attention to the quality of stainless steel. There are many factors that affect the quality of stainless steel pipes for decoration, among which the content of the main chemical elements (such as Cr, Ni, Mn, etc.) has a particularly important impact on the quality of stainless steel pipes. Therefore, chemical composition detection is very important in the quality inspection...

AI Technical Summary

Problems solved by technology

There are many factors that affect the quality of stainless steel pipes for decoration, among which the content of the main chemical elements (such as Cr, Ni, Mn, etc.) has a particularly important impact on the quality of stainless steel pipes. Therefore, chemical composition detection is very important in the quality inspection of stainless steel materials for decoration. At present, there are two main methods for detecting the chemical composition of stainless steel. One is inductively coupled plasma spectrometry. The interference that may exist in the complex matrix of the sample needs to be fully considered and the accuracy of using this standard to determine the content of the corresponding element in the sample needs to be further studied, and the process of configuring a series of standard working curves for this method is relatively cumbersome, which prolongs the detection cycle in disguise.

The other is spark discharge atomic emission spectrometry, which plays an important role in the quality supervision of stainless steel products as a routine method for determining the content of stainless steel constituent elements, but this method is only used as a routine detection in the determination of stainless steel chemical composition method is using

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