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Method for detecting purity of magnesium alloy

A technology of purity detection and magnesium alloy, applied in the field of detection, can solve the problems of magnesium alloy purity reduction, non-metallic slag inclusion, etc.

Inactive Publication Date: 2017-08-29
BEIJING NORTH LIGHT ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, the use of flux in magnesium alloys is likely to cause non-metallic slag inclusions, and the generation of chlorides will reduce the purity of magnesium alloys. At present, ultrasonic testing is used to detect the internal quality of alloys, but ultrasonic waves can only identify impurities inside the alloy and it is difficult to judge whether chlorides are formed.

Method used

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Embodiment Construction

[0024] The present invention will be further described in detail below, so that those skilled in the art can implement it according to the description.

[0025] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0026] The detection method of magnesium alloy purity provided by the invention comprises the following steps:

[0027] Step 1: Drill a sample of 2.5g of debris with a thickness not greater than 1mm from selected parts of magnesium alloys of different furnace numbers;

[0028] Step 2, put the above sample into a 300ml beaker and add 50ml of sulfuric acid (1:3) to fully dissolve it. Cool to room temperature, transfer to a 100ml volumetric flask (if cloudy, re-sample is required), and do a blank test at the same time;

[0029] Step 3, add 3ml of nitric acid, 2ml of acetone, and 2ml of silver nitrate solution, mix well, dilute to ...

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Abstract

The invention provides a method for detecting the purity of a magnesium alloy. A white silver chloride sediment is generated by adopting a silver chloride nephelometry according to interaction of chloride ions and silver ions; the content of chloride ions in sediment is the content of chloride ions of chloride. The silver chloride nephelometry adopted for judging the content of chloride is the most rapid and rigorous judgment method, the accuracy is high, and the control on the purity of magnesium alloy in the production process is very reasonably guided, so that the method is very suitable for detection of the purity of magnesium alloy in industrial production.

Description

technical field [0001] The invention belongs to the detection field, and in particular relates to a method for detecting the purity of a magnesium alloy. Background technique [0002] Magnesium alloy is one of the lightest structural materials and has incomparable advantages over other metals. It features low density, high specific strength and specific stiffness, good vibration damping, excellent electromagnetic shielding performance, good machinability and thermoformability, and good corrosion resistance to organic substances and alkalis. [0003] Magnesium-aluminum alloys are currently the most widely used, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. Because of its excellent properties, magnesium alloys have been widely used in the housing structures of mobile communications, laptop computers, etc., as well as in the fields of automobiles, electronics, electrical appliances, aerospace, national defense, transportation, etc. [0004] The p...

Claims

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Application Information

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IPC IPC(8): G01N21/82G01N21/31
CPCG01N21/31G01N21/82
Inventor 仝仲盛张瑞莉张洋
Owner BEIJING NORTH LIGHT ALLOY