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Sample preparation device for micro Vickers hardness analysis

A technology for sample preparation and Vickers hardness, which is applied in the preparation of test samples, measuring devices, and analysis materials, etc., and can solve the problem that cylindrical samples cannot be fixed firmly.

Inactive Publication Date: 2019-06-07
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for cylindrical samples with a large bottom diameter and a small upper diameter, it still cannot be fixed firmly.

Method used

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  • Sample preparation device for micro Vickers hardness analysis
  • Sample preparation device for micro Vickers hardness analysis
  • Sample preparation device for micro Vickers hardness analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] As shown in the figure, this embodiment includes a housing 1, which is provided with a clamping member 2 that can be clamped in the middle, and one end of the housing 1 is provided with a horizontal positioning member 3 that can be combined with and separated from the housing 1 The surface of the horizontal positioning member 3 facing the housing 1 is arranged as a plane, and the other end of the housing 1 opposite to the horizontal positioning member 3 is provided with a push rod 4 .

[0016] The housing 1 and the horizontal positioning member 3 are connected by bolts. After the horizontal positioning member 3 is connected to the housing 1, the surface facing the housing 1 is a finely machined plane, and the housing 1 is positioned relative to the horizontal position. The outer surface of the housing 1 at the other end of the member 3 can define a plane, and the plane defined by the outer surface of this end is parallel to the finishing plane of the horizontal positioni...

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PUM

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Abstract

The invention relates to the field of micro Vickers hardness gauges, in particular to a sample preparation device for micro Vickers hardness analysis. The sample preparation device includes a shell. The shell is internally provided with a clamping piece which can carry out clamping towards the middle. A horizontal positioning piece which can be combined with or separated from the shell is arrangedat one end of the shell. The surface of the horizontal positioning piece facing the shell is set to a plane. An ejector rod is arranged at the other end of the shell relative to the horizontal positioning piece. The sample preparation device of the invention can adapt to irregularly-shaped samples under test. A piece of preparation equipment for micro Vickers hardness samples which is simple in structure, fast in use and convenient is provided.

Description

technical field [0001] The invention relates to the field of micro-Vickers hardness testers, in particular to a sample preparation device for micro-Vickers hardness analysis. Background technique [0002] Micro-Vickers hardness has been widely used due to its wide range of hardness measurement and high measurement accuracy. However, the micro-Vickers indentation is small, so it also puts forward high requirements on the surface roughness of the sample and the horizontal state of the sample surface, such as in GB / T4340. : "Test Method" clearly points out that the difference between the lengths of two diagonals in a plane indentation should not exceed 5% of the average length of the diagonals. And when the sample is measured uneven, the measurement indentation will be deformed to exceed 5%. This leads to large errors in the test results and reduces the accuracy of the test. [0003] At present, in order to ensure the level of the upper and lower surfaces of the sample, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/42G01N3/04G01N1/36
Inventor 王坤
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE