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Ultrasonic sclerometer

A hardness tester and ultrasonic technology, applied in the analysis of solids using sonic/ultrasonic/infrasonic waves, material analysis using sonic/ultrasonic/infrasonic waves, measuring devices, etc. The effect of reducing design cost and improving accuracy

Inactive Publication Date: 2018-09-07
GUANGZHOU LANDTEK INSTR
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Problems solved by technology

[0004] However, since the fixed sleeve is cylindrical and the main body of the durometer is telescopically arranged in the fixed sleeve, when measuring the hardness of metal, the main body of the durometer will contact or collide with the inner wall of the fixed sleeve many times when it runs in the fixed sleeve. As a result, friction is generated, which greatly affects the accuracy of hardness measurement. In order to solve this technical problem, the common method is to smooth the inner wall of the fixed sleeve, but this will increase the design cost

Method used

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Embodiment Construction

[0023] see Figure 1-6 , the ultrasonic hardness tester includes a probe rod 10 , a hardness tester main body 11 , a fixing sleeve 12 , a first metal support piece 13 and a second metal support piece 14 .

[0024] The hardness tester main body 11 has a cylindrical shape.

[0025] The detection rod 10 is cylindrical, wherein the detection rod 10 is telescopically arranged on one side of the main body 11 of the hardness tester. It should be understood that the connection structure between the probe rod 10 and the hardness tester main body 11 is a prior art, and will not be repeated here.

[0026] The fixed sleeve 12 is cylindrical, and the main body 11 of the durometer is telescopically arranged in the fixed sleeve 12 . In this embodiment, the outer wall of the fixing sleeve 12 is provided with an annular locking groove 120 , which can be held in the annular locking groove 120 to increase the grip strength.

[0027] In this embodiment, the fixing sleeve 12 is provided with a ...

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Abstract

The invention discloses an ultrasonic sclerometer. The sclerometer comprises a sclerometer body, a probing rod, a fixing sleeve and a first metal supporting sheet, wherein the probing rod can be telescopically arranged on one side end of the sclerometer body; a first through hole is formed in the fixing sleeve, and the sclerometer body is arranged inside the first through hole; the first metal supporting sheet is arranged at one end inside the first through hole, and the sclerometer body is arranged in the first metal supporting sheet; the first metal supporting sheet comprises a first annularmetal sheet arranged inside the first through hole, a second annular metal sheet arranged inside the first annular metal sheet and a first metal connecting sheet connecting the first annular metal sheet with the second annular metal sheet, and the sclerometer body is arranged inside the second annular metal sheet. By adopting the above means, the provided ultrasonic sclerometer can effectively avoid that when the sclerpometer body operates inside the fixing sleeve, the contact or collision between the sclerometer body and the inner wall of the fixing sleeve causes friction phenomenon, the accuracy of hardness measurement is greatly improved, and the design cost is reduced.

Description

technical field [0001] The invention relates to the technical field of hardness testers, in particular to an ultrasonic hardness tester. Background technique [0002] The metal hardness value indicates the ability of a metal material to resist hard objects being pressed into its surface. It is one of the important performance indicators of a metal material. Generally, the higher the hardness, the better its wear resistance. The existing hardness testers include ultrasonic hardness testers and cloth hardness testers. Hardness tester and many other types. [0003] At present, the ultrasonic hardness on the market includes a probe rod, a durometer main body connected with the probe rod, and a cylindrical fixing sleeve wrapped outside the durometer main body. Wherein the main body of the hardness tester is telescopically arranged in the fixed sleeve. The probe rod is mainly used to place on the metal surface, and the main body of the hardness tester is connected with the probe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/04G01N29/22G01N2291/0234
Inventor 杨成杨春连
Owner GUANGZHOU LANDTEK INSTR
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