Lower sample loader

Abstract

The invention discloses a lower sample loader, which is a sample loading device capable of loading a test sample from the lower side of the test sample. The sample loader comprises a base and a bracket, wherein the upper end of the base is provided with inner threaded holes for installing the bracket and the lower end of the base is provided with positioning holes for fixing the base; the bracketcomprises a fastening end, a support post and a loading end; the fastening end is positioned at the lower end of the support post for fixedly connecting the bracket with the base; and the loading endis positioned at the upper end of the support post for loading samples. The sample loader has the advantages of disassembly capability, portability, positioning capability, convenient use, reliable performance, strong universality and the like, can be widely applied to the lower loading of test samples, provides a useful solution for upgrading the loading way of the test samples in the scientificresearch and experimental teaching, in particular for solving the problem of loading samples by using the conventional hanging sample loading methods in the special locations, and is particularly suitable for loading samples during the dynamic test of degradation performance of medical magnesium alloy.

Description

technical field [0001] The invention belongs to the technical field of material / device performance testing, and relates to a sample loading device for loading test samples from their lower ends in scientific research and experimental teaching. Background technique [0002] The loading of test samples, especially solid test samples that are preset to be immersed in liquid medium, is a basic link in scientific research and experimental teaching, and has a direct and important impact on research results / teaching effects. The existing test sample loading method is mainly based on the "suspended" sample loading method supported by the upper part, that is, a through hole is drilled on the test sample, and it is hung vertically on a supporting object such as a glass rod after being tied with a filament / thread. This "suspended" sample loading method is simple and easy to implement, and can meet the needs of general research and teaching, but it also has the following defects: 1) In ...

AI Technical Summary

Problems solved by technology

This "suspended" sample loading method is simple and easy to implement, and can meet the needs of general research and teaching, but it also has the following defects: 1) In special occasions where the upper support is difficult to achieve, such as the traditional hydrogen evolution of magnesium alloy biodegradability Among the test methods, the application of the "suspended" sample loading method is limited; 2) when performing material performance tests in fluid media, if the "suspended" method is used to hang the sample using silk / wire and other software, the sample's The position is "erratic" due to the double influence of its own gravity and medium flow velocity, which has intricate effects on the test results, which is not conducive to the analysis of data and the exploration of related laws

Images