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Method for embedding thin plate metallographic sample

A metallographic sample and thin plate technology, which is applied in the field of inlaid thin plate metallographic samples, achieves the effects of reducing consumables, shortening sample preparation and image acquisition time, and strong practicability

Inactive Publication Date: 2017-05-31
INNER MONGOLIA BAOTOU STEEL UNION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report in the prior art on the mosaic method that can not only ensure the smooth grinding surface of the sample, but also reduce the cost and be easy to operate.

Method used

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  • Method for embedding thin plate metallographic sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Ten thin plate specimens 2 (0.5 mm) were mounted using this method. Bind the thin plate sample 2 on the waste sample with glue, put the whole sample into the mosaic machine, set the mosaic parameters, the mosaic result is: the surface of the thin plate sample is smooth, the purpose of edge protection is achieved, and it is easy to collect metallographic photos and data analyze.

Embodiment 2

[0029] After using this method, the three failed thin plate samples 2 were inlaid. Sheet sample 2 is a cold-rolled sheet product (thickness 0.8mm) of DC04 produced by a steel factory. Cracks occurred during stamping deformation. Due to stamping deformation, the thickness of the failure part is very thin. The sheet sample 2 was bound with adhesive tape On a waste sample 1, put it into the mosaic machine as a whole, set the mosaic parameters, the mosaic result is: the defect surface of the thin plate sample 2 is flat, retaining the original state of the sample, providing a real and powerful original for failure analysis data.

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Abstract

The invention discloses a method for embedding a thin plate metallographic sample. The method comprises the following steps: binding a thin plate test sample to an old test sample, which is higher than the thin plate test sample, through an adhesive tape or glue; putting the overall bound test samples into a hot embedding machine, and feeding a proper amount of embedding resin for sample embedding. According to the method, the thin plate test sample with a flat smooth surface can be successfully embedded; meanwhile, the method is low in cost and easy to operate.

Description

technical field [0001] The invention relates to a metallographic sample preparation technology for metal materials, in particular to a method for inlaying thin plate metallographic samples. Background technique [0002] For thin-plate samples with a thickness below 3mm, there are disadvantages such as uneven grinding and unstable hand-holding, which may easily cause personal injury in metallographic sample preparation. Therefore, most of the metallographic sample preparation methods are inlaid. There are generally two methods: One is to adopt the mechanical inlay method, clamp the thin plate sample with steel clips, and then tighten it with bolts and nuts. The strength of the mechanical clamping is not easy to grasp, the clamping is loose, the grinding surface deviates, the sample is easy to break away from the fixture, and the clamping is tight, it is easy to cause stress concentration and even deformation of the grinding surface; in addition, during corrosion, steel clamps...

Claims

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 寇沙沙李智丽杨维宇李文亚刘莉靳燕王亚男
Owner INNER MONGOLIA BAOTOU STEEL UNION
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