Device for measuring quickly elongation after fracture and percentage of area reduction of circular sample

圆形试样断后伸长率和断面收缩率的快速测量装置

Abstract

The utility model relates to a fast measuring device for quickly measuring the extension rate of the broken the round cross section specimen and the reduction of cross sections in the tensile test of the metal materials. A fast measuring device for extension rate of the broken round specimen and reduction of cross sections includes a bottom and a measuring base on the bottom, characterized in that a plurality of V-shaped slots are opened on the upper and lower surfaces of the measuring base; magnetic bodies are built in the measuring base, corresponding magnetic switches are positioned on the lateral side of the measuring base, and the number of the measuring base is at least two. The utility model has simple structure and is easy to use, capable of adapting broken parts of the specimen during measurement, with high measuring efficiency; meanwhile, can randomly adopt correspondent number of measuring bases and V-shaped slots consistent with the diameter of the specimen based on different diameters and lengths of the specimen, having wide scope of application and capable of meeting requirements for measurement of the extension rate of the broken the round cross section specimen and the reduction of cross sections in general mechanical labs.
本实用新型涉及一种在金属材料拉伸试验中快速测量圆形横截面试样断后伸长率和断面收缩率的快速测量装置。一种圆形试样断后伸长率和断面收缩率的快速测量装置,包括底座和置于底座上的测量基座,其特征是:所述的测量基座上、下表面分别开设有若干V型槽;测量基座内置有磁性体,在测量基座侧面设置有相应的磁力开关,测量基座至少为二个。本实用新型结构简单,使用灵活,在测量时能方便配接试样断裂部分,测量效率高;同时,可以根据不同直径、长度的试样,任意采用相应的测量基座个数及符合试样直径的V型槽,因此适用范围广,可满足一般力学实验室测量圆形横截面试样断后伸长率和断面收缩率的要求。

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