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Method for detecting segregation of magnesium element in copper-magnesium alloy material

A technology of copper-magnesium alloy and detection method, which is applied in the direction of using chemical indicators for analysis, etc., can solve problems such as complicated procedures and long testing time, and achieve the effect of simple and easy method

Active Publication Date: 2013-10-23
FUJIKURA HENGTONG AERIAL CABLE SYST +2
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AI Technical Summary

Problems solved by technology

The traditional method of measuring magnesium segregation is to cut, polish and corrode the copper rod, and then observe it with a scanning electron microscope to find the magnesium segregation point. This method has complicated procedures and takes a long time to test.

Method used

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Examples

Experimental program
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Effect test

specific Embodiment 1

[0018] Measure 10ml of the detection solution base solution, add 90ml of pure water to dilute it to obtain a detection solution that can be used for magnesium segregation detection, pour the detection solution into a container, and then immerse the filter paper in the detection solution. In order to facilitate the immersion of the filter paper, it is advisable to use a shallow container for the container. After the filter paper is completely soaked, take out the filter paper and wrap the filter paper on the circumferential surface of the object made of copper-magnesium alloy material to be tested. In order to prevent the detection solution on the filter paper from After the peripheral surface of the object made of magnesium alloy material, the outer peripheral surface of the filter paper is also wrapped with plastic cloth, and the plastic cloth can be wrapped on the outer peripheral surface of the filter paper through ropes, rubber bands, etc., and it can be taken after standin...

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Abstract

The method discloses a method for detecting segregation of magnesium element in a copper-magnesium alloy material. An alkaline detection solution containing chrome black T is prepared by using the principle that an alkaline chrome black T solution can be used as a magnesium ion indicator, filter paper impregnated with the above detection solution is used to directly coat on the circumferential surface of an object made of a to-be-tested copper-magnesium alloy material, magnesium element can generate a purple complex on the filter paper after contacting with the detection solution on the filter paper, and an observer can detect the magnesium segregation problem of the object made of the to-be-tested copper-magnesium alloy material by observing the conditions of the complex on the filter paper. The method disclosed by the invention is simple and feasible, and can effectively detect the magnesium segregation problem of the object made of the copper-magnesium alloy material.

Description

technical field [0001] The invention relates to a method for detecting segregation of magnesium elements in copper-magnesium alloy materials. Background technique [0002] In the process of upward continuous casting to produce copper-magnesium alloy contact wire, the casting defect of magnesium segregation restricts the improvement of contact wire product quality. This is mainly because the existence of magnesium segregation will cause the instability of the mechanical properties of the contact wire and the reduction of the electrical properties of the contact wire. Therefore, the control of magnesium segregation becomes the key to improving the quality of the contact wire in actual production. The traditional method of measuring magnesium segregation is to cut, polish and corrode the copper rod, and then observe it with a scanning electron microscope to find the magnesium segregation point. This method has complicated procedures and takes a long time to test. Contents of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/22
Inventor 吴斌杜春雷聂杨凯宋培峰
Owner FUJIKURA HENGTONG AERIAL CABLE SYST
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