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A thin plate metallographic thermal embedding method

A technology of hot embedding and thin plate, which is applied in the preparation of test samples, etc., can solve the problems of capillary action, corrosion of metallographic surface, grinding sample corrosion, etc., and achieve the effect of reducing sample preparation cost, improving success rate and efficiency

Active Publication Date: 2021-04-13
INST OF RES OF IRON & STEEL JIANGSU PROVINCE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above patents all have small gaps between the thin plate and the holder, and between the thin plate and the thin plate, resulting in capillary action, abrasive corrosion, water stains, and corrosion of the metallographic surface

Method used

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  • A thin plate metallographic thermal embedding method
  • A thin plate metallographic thermal embedding method

Examples

Experimental program
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Effect test

Embodiment 1

[0028]The single-piece DC04 deep-cut IF steel sheet (0.8 mm) was mounted with a thermal inlaid method, and the size and uniformity of ferrite tissue were mainly observed. With the sheet thermal inlaid method of the sheet in the present invention, it is first used to form a thermosetting resin block (thickness 4.0 mm thick) with a gap, and the sheet is laminated with a cure resin with a gap. Between blocks, overallfigure 2Placed on the macrofaccelock lower platform platform, select the heating temperature of 180 ° C, heat free time of 4 min, pressure 250 bar, select high speed cooling, water cooling time for 4 minutes, and inlaid. The thin plate is flat, and the surface of the surface is no water in the surface of the corrosion, and the metal phase tissue is clean and convenient.

Embodiment 2

[0030]8-piece number DX53D + Z galvanized sheet (0.5 mm long 6.0 mm, width is 4.0 mm), and the zinc layer tissue is mainly observed in the zinc layer. The thermal inlaid method of the thin plate in the present invention is used, and the inlay structure is first used alone (0.2 mm thickness of 10.0 mm, width of 6.0 mm), and its gap size (length 8.0mm, width is 2.0 mm); processing resin Block (4.0mm), gap edge (2.0 mm). The adjacent sheet samples are separated by a thermosetting resin sheet with a gap, and the two ends are clamped with a cure resin block with a gap.figure 1 Indicated. Overall in the thermal inlaid socket, such asfigure 2As shown, the resin tissue is added, the heating temperature is 190 ° C, the heating time is 6 min, the pressure 280 bar, and the medium speed cooling is selected for 6 min, and the inlay is made. There is no gap between the galvanized sheet cross section, and the surface of the sample is smooth and clean, and the zinc layer is completely retained, whi...

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Abstract

The invention discloses a thin-plate metallographic heat embedding method. The heat-cured resin flake and the resin block are processed by processing the resin inlay material, and the heat-cured flake and the resin block are both processed to form gaps. When the thin plate sample is single, fix it with a heat-cured resin block with a gap, put the whole into a thermal mounting machine, add resin inserts for mounting; when there are multiple thin plate samples, use gaps between adjacent thin plate samples The heat-cured resin sheets are separated, and the two ends are clamped and fixed with a heat-cured resin block with a gap. The whole is put into a heat-mounting machine, and resin inserts are added for mounting. The invention has low sample preparation cost and no requirement on the thickness of the thin plate, can improve the inlay efficiency of the thin plate, does not generate capillarity, and improves the success rate of metallographic photography.

Description

Technical field[0001]The present invention belongs to a metallic phase such as a metal material, and more particularly to a thin plate gold phase heat inlay method.Background technique[0002]For thin plate samples, if fixed or mosaic is not performed, the sample and grinding operation are carried out, the cross section is not flat, and it is easy to cause mechanical damage to the sample person. Gold phase inlays generally use three methods of mechanical, cold inlaid, and hot inlaid. The mechanical inlaid is expensive, the efficiency is low, the stability is not sufficient, and the thin plate sample has caused stress concentration, and even deformation; the cold inlaid liquid insert is long, and the inlay is not completed in time; the thermal inlaid is the laboratory gold phase The most commonly used method, high efficiency, strong thermosetting resin samples, uniform size, can be bracomized automatic grinding. When the sheet is hot inlaid, since the thickness is thin and unable to er...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/36G01N1/44
Inventor 陈刚刘志桥张志建李化龙赵刚
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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