Method for measuring Ti content in low-carbon ferrophosphorus

A technology of titanium content, carbon and phosphorus, applied in the direction of material stimulation analysis, thermal stimulation analysis, etc., can solve the problems of no analysis method and no analysis items in steel mills

Inactive Publication Date: 2010-06-23
ANGANG STEEL CO LTD
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Problems solved by technology

[0003] Regarding the titanium element in low-carbon ferrophosphorus, steel mil...

Method used

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  • Method for measuring Ti content in low-carbon ferrophosphorus
  • Method for measuring Ti content in low-carbon ferrophosphorus

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Embodiment Construction

[0011] Inductively coupled plasma emission spectrometry is used to determine the titanium content in low-carbon ferrophosphorus. This method is to dissolve the sample with nitric acid and hydrofluoric acid, fume with perchloric acid, dilute it to a certain volume with water, and introduce the atomized solution into the inductively coupled The plasma emission spectrometer is used to measure the spectral line intensity of the element to be measured. According to the spectral line intensity measured by the standard substance with known content, the element content corresponding to the substance to be tested is calculated.

[0012] 1. Main instruments

[0013] 1.1 IRIS Intrepid II high-resolution, high-sensitivity full-spectrum direct-reading inductively coupled plasma emission spectrometer from American Thermo Company; TEVA software (version: 1.5.0).

[0014] 1.2 Instrument measurement conditions:

[0015] Titanium analysis spectrum line 336.1nm, high frequency generator power ...

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Abstract

The invention relates to a technical field of ferrous metallurgical analysis and discloses a method for measuring the Ti content in low-carbon ferrophosphorus. The method comprises the following steps: dissolving a sample through a nitric acid and a hydrofluoric acid; fuming the sample by a perchloric acid; diluting to a certain volume with water; introducing atomization solution into an inductively coupled plasma atomic emission spectrometer; and measuring the intensity of a spectral line to be tested; and calculating the content of the corresponding element of the substance to be tested according to the intensity of the spectral line which is measured by the standard substance at known concentration. The method has the advantages of capacity of quickly and accurately analyzing the Ti content in low-carbon ferrophosphorus and no pollution.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgical analysis, and relates to a method for measuring titanium content in low-carbon ferrophosphorus. Background technique [0002] Low-carbon ferrophosphorus is an additive and deoxidizer for steelmaking. The titanium content is very strict for some steel types, because titanium exists in the form of TiN or Ti(C, N) inclusions in molten steel, which cause defects on the steel surface. In particular, the cord steel has stricter requirements on titanium, so we need to control the steelmaking additive—titanium content in low-carbon ferrophosphorus to less than 0.5%, so as to meet the production of high-quality cord steel. [0003] Regarding the titanium element in low-carbon ferrophosphorus, steel mills did not do analysis items in the past, and there is no analysis method in China. Contents of the invention [0004] In order to effectively control and quickly and accurately analyz...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 赵云霞董玲赵竞泽康宝军单桂艳
Owner ANGANG STEEL CO LTD
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