A kind of jig for metallographic analysis samples of thin slices

Abstract

The invention discloses a sheet-like metallographic analysis sample fixture. The sheet-like metallographic analysis sample fixture comprises screws, a pressure plate, a base and a cushion block, wherein the base is of a rectangular solid hard structure, an inverted triangle-shaped bayonet is machined downwards from the top, the bottom end of the bayonet communicates with a through hole of the base, and threaded holes A are respectively machined downwards at both sides of the top of the base bayonet; the top of the cushion block is a rectangular solid brace table, the bottom is an inverted triangle-shaped plug, and the inverted triangle-shaped plug matches with the inverted triangle-shaped bayonet of the base; the main body of the pressure plate is of a rectangular solid plate structure, a pressure groove corresponding to the rectangular solid brace table of the cushion block in size is machined at the bottom, and threaded holes B are respectively arranged downwards at both sides of the top of the pressure plate; and the inverted triangle-shaped plug of the cushion block is inserted into the inverted triangle-shaped bayonet of the base, the pressure groove of the pressure plate is buckled on the brace table of the cushion block, and the screws are connected with the threaded holes B of the base through the threaded holes A of the pressure plate. The sheet-like metallographic analysis sample fixture has the advantages of simple and reasonable structure, convenient operation, low cost and the like.

Description

technical field [0001] The invention relates to the field of metallographic sample preparation, in particular to a clamp device used in the preparation process of thin metallographic samples. Background technique [0002] Metallographic analysis is one of the means of testing and analyzing materials, aiming to reveal the real structure of materials. To conduct metallographic analysis, it is necessary to prepare samples that can be used for microscopic observation and inspection, that is: metallographic samples. In metallographic analysis, it is very important to select and prepare representative samples. Usually, the preparation of metallographic samples will go through the following steps: sampling, inlay (sometimes can be omitted), polishing (coarse grinding and fine grinding), polishing and corrosion. During the grinding and polishing process of the sample, the experimental operator needs to hold the sample by hand, and then process it on a metallographic grinder, metal...

AI Technical Summary

Problems solved by technology

During the preparation process, the sample is too small to hold, it is inconvenient to grind and polish, and it is impossible to directly prepare the sample. The usual treatment method is to complete the sample preparation by mounting the sample first and then preparing the sample. Equipment and mosaic materials cannot be reused, and are time-consuming, labor-intensive, and resource-wasting

[0003] When preparing metallographic samples, we will inevitably encounter samples of different sizes and shapes, which will cause trouble for the subsequent grinding and polishing steps, especially when encountering thin slice samples , the sample size is small and difficult to hold, so grinding and polishing cannot be carried out

Similarly, when thin-sheet samples are scanned by electron microscope, they often encounter the phenomenon that they cannot be well matched with the stage in the sample chamber on the scanning electron microscope (SEM).

This leads to the fact that the mounting step cannot be ignored in the preparation process of thin slice samples.

In addition, when performing hardness testing on thin-sheet samples, the sample cannot be fixed on the stage of the hardness tester, which increases the difficulty of the experiment

Therefore, when preparing thin-sheet samples, the experimental steps will become more complicated, time-consuming, labor-intensive, and costly

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