Five minutes will take you to understand metal material detection and analysis
When you take out a pen or piece of jewelry, you're already making a connection with the metal. And detection and analysis and metal materials also have an inevitable relationship, metal materials can be through detection and analysis to upgrade products breakthrough innovation.
The chemical composition of metal is the key factor to determine the properties and quality of metal materials. Therefore, the standards for the vast majority of metal materials, must ensure the chemical composition, some even as the main quality, variety indicators. Chemical composition can be detected and analyzed by chemical and physical methods. At present, the following three kinds of detection and analysis methods are commonly used.
Chemical detection analysis: chemical analysis is divided into qualitative analysis and quantitative analysis. Through qualitative analysis, we can identify what elements the material contains, but can not determine their content; Quantitative analysis is used to accurately determine the content of various elements. Quantitative analysis is mainly used in actual production. The quantitative analysis methods are gravimetric analysis and volumetric analysis. Gravimetric analysis: Separation of the element to be measured from the other components of the metal by proper means of separation, followed by measurement of the element content by means of weighing. Volumetric analysis: The complete reaction of a standard solution (a solution of known concentration) with the element to be measured in the metal, and then the amount of the element to be measured is calculated from the volume of the standard solution consumed.
Spectral detection analysis method: various elements can produce their own unique spectrum under high temperature and high energy excitation. The method of determining the chemical composition and approximate content of metals according to the characteristic spectrum generated after the excitation of elements is called spectral analysis method. Usually by means of electric arcs, electric sparks, lasers and other external energy. Spectral analysis: OES excited the atoms of the material to produce electronic transition, and the composition and the exact content of elements were obtained in the process of receiving the characteristic spectrum and intensity of the electronic transition, and then analyzed by comparing with the chemical element spectrum table after spectroscopic analysis.
Spark detection and analysis: mainly used for iron and steel, in grinding wheel due to friction, high temperature, various elements, particles oxidation spark number, shape, bifurcation, color, etc., to identify the chemical composition of the material (component elements) and the approximate content of a method.
If the enterprise has a project about metal products, want to know about the metal detection and analysis of the relevant services. Noah detection analysis can provide comprehensive professional services, Noah certification testing was founded in 1999, the examination as the pioneer brand, deep ploughing in the field of testing for many years, is an independent, impartial and professional inspection, testing and certification, technical service comprehensive third-party services, has a group of first-class research and development team and professional testing personnel.
Noah testing and analysis Laboratory can use a variety of equipment and means to detect the elemental composition and precise content of metal materials.
Here Noah detection analysis expert, for you focus on plasma emission spectroscopy analysis.
Application scope of ion emission spectrum analysis: ferrous metal (carbon steel, alloy steel, stainless steel, cast iron, ferroalloy, etc.) and non-ferrous metal (aluminum alloy, copper alloy, zinc alloy, magnesium alloy, titanium alloy, nickel alloy, etc.).
ICP vaporizes and dissociates the material into atoms or ions after dissolution, and excites to produce electron transitions, and obtains the composition and the exact content of elements from the characteristic spectrum and intensity during the process of receiving electron transitions. Wet titration dissolves the material into a solution, using various chemical quantitative reactions to determine the element content. The content of gaseous elements (C/S/O/N/H) can be obtained by means of absorption spectrum or thermal conductivity. Moving the direct reading spectrum with the direct reading spectrum. Suitable for on-site inspection of metal materials.
Metal material detection and analysis not only have a variety of methods, but also can help enterprises through detection and analysis, solve the problems encountered in the production of metal material, but also can find out the problem of product failure, to help enterprises avoid unnecessary losses, so the importance of detection and analysis to the industry.
