Grain size testing device for metal material detection

Abstract

The invention discloses a grain size testing device for metal material detection. The grain size testing device comprises a supporting column, the top end of the supporting column is rotatably connected with a metallographic microscope, the bottom end of the metallographic microscope is sleeved with a camera, the interior of the supporting column is electrically connected with an image sensor, the bottom end of the supporting column is fixedly connected with a rotating rod, and the outer side of the supporting column is sleeved with an auxiliary box; a sleeve is fixedly connected to the top of the auxiliary box, a metal hose penetrates through the top of the sleeve, a nozzle is fixedly connected to the top end of the metal hose, a rotating motor is installed in the sleeve, and fan blades sleeve the output end of the rotating motor; the problems that in the using process of an existing grain size testing device, a user needs to rotate a structure to adjust the distance between an objective table and an objective lens while using an eyepiece to observe, so that the distance adjusting process is time-consuming, and the grain size testing efficiency of the device is low, dust at dead corners of the device is not agreed to be cleaned out and thus the device is not cleaned thoroughly and the subsequent use of the device is influenced can be solved.

Description

technical field [0001] The invention relates to the technical field of grain size testing devices, in particular to a grain size testing device for metal material detection. Background technique [0002] Grain size is the measure of the grain size. Commonly used methods include the number of grains per unit volume, the number of grains per unit area, or the average line length of grains. When a metal crystallizes, each grain is composed of a The crystal nuclei grow up, so the size of the grains depends on the number of crystal nuclei and the relative size of the grain growth rate. The value of the grain size will affect the structure and properties of the product obtained after the metal is cooled. However, during the use of the existing grain size testing device, the user needs to use the eyepiece to observe while rotating the structure to adjust the distance between the stage and the objective lens, which makes the process of adjusting the distance time-consuming, resultin...

AI Technical Summary

Problems solved by technology

However, during the use of the existing grain size testing device, the user needs to use the eyepiece to observe while rotating the structure to adjust the distance between the stage and the objective lens, which makes the process of adjusting the distance time-consuming, resulting in low efficiency of the device for testing the grain size ; In addition, when the device is cleaning the device, the dust located in the dead corner of the device is not easy to be cleaned out, which makes the device not clean enough and affects the subsequent use of the device. For this reason, we propose a metal material detection grain degree test device

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