Method for measuring aluminum, magnesium, calcium, vanadium, titanium, nickel, copper and manganese in rare earth silicon-magnesium alloy

Abstract

The invention discloses a method for measuring aluminum, magnesium, calcium, vanadium, titanium, nickel, copper and manganese in rare earth silicon-magnesium alloy, and belongs to the field of metallurgy analyzing methods. The aim that the provided method for measuring aluminum, magnesium, calcium, vanadium, titanium, nickel, copper and manganese in the rare earth silicon-magnesium alloy is high in sensitivity, high in measuring speed, easy and convenient to operate and small in interference relative to other methods, has good selectivity, and can provide accurate data for the smelting ingredient control process is achieved. The method comprises the following steps that 1, a sample is prepared; 2, the sample is dissolved; 3, a standard calibration curve solution is prepared; 4, a standard curve is drawn; 5, the content of all elements is measured. The method is high in precision, high in accuracy, fast, simple and convenient to use, and can be used for measuring the content of aluminum, magnesium, calcium, vanadium, titanium, nickel, copper and manganese in the rare earth silicon-magnesium alloy in production.

Description

technical field [0001] The invention specifically relates to a method for measuring aluminum, magnesium, calcium, vanadium, titanium, nickel, copper and manganese in rare earth silicon-magnesium alloys, and belongs to the field of metallurgical analysis methods. Background technique [0002] Rare earth is known as "gold" in industry, and rare earth alloys mainly include: rare earth ferrosilicon alloy, rare earth aluminum alloy, rare earth silicon magnesium alloy, etc. Rare earth alloys are widely used in iron and steel smelting, greatly improving the quality and performance of steel used to manufacture tanks, aircraft, and missiles, as well as the tactical performance of aluminum alloys, magnesium alloys, and titanium alloys. In order to ensure the quality of rare earth alloys and control production costs, impurity elements in rare earth alloys must be quickly and accurately measured in production to provide analytical data for production control. [0003] There have been s...

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Problems solved by technology

[0003] There have been some studies on the determination of non-rare earth elements in rare earth alloys at home and abroad. Among them, the national standard method GB / T12690.14-2003 uses plasma spectroscopy to determine the amount of titanium in rare earth metals and their oxides. The measurement range of this method is 0.005 ~0.5%; National standard GB / T12690.5-2003 stipulates the determination of aluminum oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide in rare earth oxides by inductively coupled plasma atomic emission spectrometry and the determination method of lead oxide content, the determination range is 0.001-0.1% of manganese oxide, 0.005-0.1% of nickel oxide, and 0.002-0.1% of copper oxide; "Rare Earth" in December 2013, the paper "ICP - Determination of Waste Rare Earth Elements in NdFeB Waste by AES Method" provides a determination method, the determination range of this method is 0.005-0.5% for manganese, 0.05-1.0% for copper, 0.01-1.0% for nickel, and 0.1-1.0% for titanium; The determination ranges of several methods cannot meet the analysis requirements of each element in rare earth silicon-magnesium alloys

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