Rigid alloy soldered joint shearing property testing device

A technology of brazed joints and hard alloys, applied in the direction of using stable shear force to test the strength of materials, etc., can solve the problems of inability to accurately test the strength of brazed joints, achieve efficient and reliable testing methods, ensure test quality, and process convenient effect

Inactive Publication Date: 2015-04-08
SHANGHAI INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And since the bending moment is applied on the specimen, the strength of the brazed joint cannot be accurately tested

Method used

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  • Rigid alloy soldered joint shearing property testing device
  • Rigid alloy soldered joint shearing property testing device
  • Rigid alloy soldered joint shearing property testing device

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 to Figure 4 As shown, the present invention is used for rod-shaped brazing samples ( Figure 5 ) The composition and structure of the shear performance testing device are as follows:

[0018] The cemented carbide brazed joint shear performance testing device uses a tetragonal structure as the base 1, and a light hole 4 for placing the sample is designed and processed on one side. The light hole can be circular or square or other shapes. Design a vertical round hole with a threaded hole 3 in the light hole 4 for fixing the bolt 10, and design a square groove 5 on the other side for taking out the sample. The square groove 5 communicates with the light hole 4, and the axis of symmetry coincides. A smooth hole 2 is designed on the upper surface of the square groove 5. The smooth hole 2 can be circular or square, and is mainly used f...

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Abstract

The invention relates to a rigid alloy soldered joint shearing property testing device which comprises a base, a pressure rod, a lug boss and a fastening screw, wherein the upper surface of a tetragonal structure of the base is provided with a smooth hole and a threaded hole, and the side surface of the tetragonal structure of the base is provided with an unthreaded hole and a square groove; one end of the lug boss contacts with an upper press plate of a universal testing machine, and the other end of the lug boss is connected with the pressure rod; and the pressure rod penetrates through the smooth hole, and the pressure rod exceeds the unthreaded hole positioned on the side surface in length and reaches the lower part of the square groove. The rigid alloy soldered joint shearing property testing device disclosed by the invention can very easily and conveniently complete the soldered joint property testing experiment of a dissimilar material through the traditional universal testing machine and completely ensure the testing quality. According to the rigid alloy soldered joint shearing property testing device, a used test sample is convenient to process, so that the problems that the dissimilar material, especially a material with fragile physical property is difficult to process and the joint property is difficult to test through stretching are solved. A testing method is high in efficiency, reliable and convenient to operate.

Description

technical field [0001] The invention relates to a material mechanical property detection device, in particular to a shear test device for brazing joints of cemented carbide and dissimilar metals. Background technique [0002] In the test of the mechanical properties of brazed joints, there is a very important mechanical performance test experiment——shear performance test experiment, through which the shear strength of the brazed joint is tested to obtain the corresponding fracture index, which is stipulated at home and abroad. Corresponding standards, such as the national standard GB / T11363-2008 "Brazed Joint Strength Test Method", the international standard ISO5187:1985 "Welding and related processes using solder and brazing metal parts mechanical test method" (English version), etc. . With the development of brazing technology, brazing of dissimilar materials, such as ceramic-metal alloy, cemented carbide-carbon steel or alloy steel, composite material-metal alloy, etc., ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24
Inventor 徐春周漭森赵飞
Owner SHANGHAI INST OF TECH
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