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Method for measuring content of each component in ferro-titanium by X-ray fluorescence spectrometry

A fluorescence spectrometry and titanium-iron alloy technology is applied in the field of X-ray fluorescence spectroscopy to determine the content of each component in titanium-iron alloy, which can solve the problems of large consumption of chemical reagents, cumbersome detection process and high detection cost, and achieve stable and reliable results. The effect of shortening analysis time and wide detection range

Inactive Publication Date: 2019-04-02
WUKUN STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] General analysis and detection of ferro-titanium chemical composition adopts traditional chemical analysis methods, such as GB / T4701.1-2009 iron ammonium sulfate titration method for determination of titanium, GB / T4701.2-2009 sulfuric acid dehydration gravimetric method for determination of silicon, GB / T4701. 6-2009 EDTA titration method for determination of aluminum, GB / T4701.7-2009 molybdenum blue photometric method for determination of phosphorus and other single element analysis methods, the detection process is cumbersome, the analysis speed is slow, the analysis cycle is long, and more manpower is required, and The consumption of chemical reagents is large, the cost of detection is high, and a large amount of chemical waste liquid causes environmental pollution, which can no longer fully meet the needs of fast-paced production

Method used

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  • Method for measuring content of each component in ferro-titanium by X-ray fluorescence spectrometry
  • Method for measuring content of each component in ferro-titanium by X-ray fluorescence spectrometry
  • Method for measuring content of each component in ferro-titanium by X-ray fluorescence spectrometry

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Making the tablet to be tested: the ferro-titanium alloy is dried, crushed, mixed, fractionated, ground, and sieved to obtain a powder sample, sample 1.5g, and make a sample on the tablet machine as the sample to be tested; The pressure in the process of making samples on the tablet press is 20t and the time is 20s. The samples described use boric acid as the substrate. The mesh number of the sieving is 150. The specifications of the sample are: diameter 25mm, thickness 5mm.

[0036] 2. Under selected working conditions, use X-ray fluorescence spectrometer to measure standard samples. According to the known content and measurement intensity of standard samples, draw calibration curves and perform matrix correction, spectral line overlap interference correction, and component content of standard samples. The following table:

[0037] Titanium iron standard sample

[0038]

[0039] 3. Spectrometer parameter setting: select the Ka spectral line of each element as the analy...

Embodiment 2

[0048] 1. Making the tablet to be tested: the ferro-titanium alloy is dried, crushed, mixed, shrunk, ground, and sieved to obtain a powder sample, sample 1.8g, and make a sample on the tablet machine as the sample to be tested; The pressure in the process of making samples on the tablet press is 25 and the time is 30 seconds. The samples described use boric acid as the substrate. The mesh number of the sieving is 160. The specifications of the sample are: diameter 30mm, thickness 5.5mm.

[0049] 2. Spectrometer parameter setting: Calibrate the spectrometer, select the Ka spectral line of each element as the analysis line, and select the 2θ angle corresponding to the spectral line at the same time. The tube voltage is 45kV when measuring Ti, Mn, and Cu, and measuring Si, Al, P is 26 kV, the light tube current is 55mA when measuring Ti, Mn, Cu, and 120mA when measuring Si, Al, P;

[0050] 3. According to the selected measurement conditions, use an X-ray fluorescence spectrometer t...

Embodiment 3

[0055] 1. Making the tablet to be tested: the ferro-titanium alloy is dried, crushed, mixed, shrunk, ground, and sieved to obtain a powder sample, sample 2g, and make a sample on the tablet machine as the sample to be tested; The pressure in the process of making samples on the tablet machine is 28t and the time is 35s. The samples described use boric acid as the substrate. The mesh number of the sieving is 170. The specifications of the sample are: 35mm in diameter and 5.8mm in thickness.

[0056] 2. Spectrometer parameter setting: Calibrate the spectrometer, select the Ka spectral line of each element as the analysis line, and select the 2θ angle corresponding to the spectral line at the same time. The light tube voltage is 48kV when measuring Ti, Mn, and Cu. When measuring Si, Al, P is 28kV, the light tube current is 58 mA when measuring Ti, Mn, and Cu, and when measuring Si, Al, and P, it is 123 mA;

[0057] 3. According to the selected measurement conditions, use an X-ray f...

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Abstract

The invention discloses a method for measuring the content of each component in the ferro-titanium by an X-ray fluorescence spectrometry. Since high-temperature fusing and sample preparation for a test sample can not be implemented, a test sample is made and analyzed by using a pressed pellet; analysis programs of all components are made based on a calibration curve method, feature X-ray intensities of all component are measured and a final analysis program and a drift correction program are established; and drift correction and verification analysis are carried out on an instrument, the testsample is analyzed after determination, and the analysis result is read out directly from a computer. According to the invention, various components like titanium, aluminum, silicon, phosphorus, copper, manganese a in the ferro-titanium are analyzed once; and thus the operation becomes simple and the analysis speed is fast.

Description

Technical field [0001] The invention belongs to the technical field of X-ray fluorescence spectroscopy, and specifically relates to a method for determining the content of each component in a ferro-titanium alloy by X-ray fluorescence spectroscopy. Background technique [0002] Ferro-titanium is one of the main raw materials in the steelmaking process. Its composition and weight percentage content are generally: titanium 25%-35%, aluminum ≤ 6%, silicon ≤ 4%, phosphorus ≤ 0.10%, and copper ≤ 0.10%. In the steelmaking process, ferro-titanium is added as an alloying element to the molten steel to refine the structure grains, fix the interstitial elements (C, N), and improve the strength of the steel. As a deoxidizer, the product deoxidized with titanium is easy to float up, and the titanium deoxidized with killed steel can reduce the segregation on the upper part of the steel ingot, thereby improving the quality of the steel ingot. When smelting stainless steel and heat-resistant s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/2202G01N23/223
Inventor 李文生孙肖媛王磊许涯平曾海梅
Owner WUKUN STEEL
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