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CN-224202995-U - Auxiliary tool for testing bonding strength of metal layered composite material

CN224202995UCN 224202995 UCN224202995 UCN 224202995UCN-224202995-U

Abstract

The utility model discloses an auxiliary tool for testing the bonding strength of a metal layered composite material, which comprises a cylindrical sample locking mechanism, wherein an upper pull rod is connected to the center of the upper part of the cylindrical sample locking mechanism, a T-shaped sample groove penetrating through the cylindrical side surface of the lower part of the sample locking mechanism is arranged at the center of the lower part of the sample locking mechanism and used for being connected with the upper part of a sample, and a lower pull rod, wherein a T-shaped through hole penetrating through the radial direction of the lower pull rod is arranged at the upper part of the lower pull rod and used for being connected with the lower part of the sample. The auxiliary tool is used for clamping the test sample in the process of testing the bonding strength of the metal material, and can prevent the metal composite layer of the material from deforming or tearing in the process of testing.

Inventors

  • YUAN MAN
  • WANG HUA
  • ZHANG GUOLING
  • QI LINA

Assignees

  • 中国船舶集团有限公司第十二研究所

Dates

Publication Date
20260505
Application Date
20250515

Claims (8)

  1. 1. The auxiliary tool for testing the bonding strength of the metal layered composite material is characterized by comprising a cylindrical sample locking mechanism (2), wherein an upper pull rod (1) is connected to the center of the upper portion of the cylindrical sample locking mechanism, a T-shaped sample groove penetrating through the cylindrical side face of the lower portion of the sample locking mechanism (2) is arranged in the center of the lower portion of the sample locking mechanism, the T-shaped sample groove is used for being connected with the upper portion of a sample (4), the auxiliary tool further comprises a lower pull rod (5), and a T-shaped through hole penetrating through the radial direction of the upper portion of the lower pull rod (5) is arranged on the upper portion of the lower pull rod, and the T-shaped through hole is used for being connected with the lower portion of the sample (4).
  2. 2. The auxiliary tool for testing the bonding strength of the metal laminar composite according to claim 1, wherein two 180-degree handles (3) are fixed on the circumferential surface of the side surface of the sample locking mechanism (2).
  3. 3. The auxiliary tool for testing the bonding strength of the metal laminar composite material according to claim 1, wherein a threaded hole is formed in the center of the upper portion of the sample locking mechanism (2) along the axial direction, and the upper pull rod (1) is connected with the sample locking mechanism (2) through the threaded hole.
  4. 4. The auxiliary tool for testing the bonding strength of the metal layered composite material according to claim 1, wherein the whole longitudinal section of the test specimen (4) is of an inverted I-shaped structure with long upper part and short lower part.
  5. 5. The auxiliary tool for testing the bonding strength of the metal layered composite material according to claim 4, wherein the sample (4) comprises a metal composite layer (41) and a base metal (43), and the contact part of the metal composite layer and the base metal is a bonding surface (42).
  6. 6. The auxiliary tool for testing the bonding strength of the metal laminar composite according to claim 5, wherein the transverse part of the upper part of the test specimen (4) is a metal composite layer (41) with a circular or racetrack-shaped transverse section, the middle part of the test specimen (4) is of an elongated cylindrical structure, the lower part of the test specimen is of a flat cylindrical structure, and the headquarters and the lower part of the test specimen form a base metal (43).
  7. 7. The auxiliary tool for testing the bonding strength of the metal laminar composite according to claim 6, wherein the shape and the size of the T-shaped sample groove are matched with the upper half part of the sample (4).
  8. 8. The auxiliary tool for testing the bonding strength of the metal laminar composite according to claim 6, wherein the shape and the size of the T-shaped through hole are matched with those of the lower half part of the test sample (4).

Description

Auxiliary tool for testing bonding strength of metal layered composite material Technical Field The utility model belongs to the technical field of metal material performance testing devices, and relates to an auxiliary tool for testing the bonding strength of a metal layered composite material. Background With the development of industrial technology, the metal layered composite material is widely applied in the fields of petroleum, chemical industry, aerospace, automobiles, shipbuilding, electric power and the like due to excellent properties such as high strength, corrosion resistance, wear resistance and the like, and the material is a composite material which forms metallurgical bonding between two or more metal materials by utilizing a unique advanced process, and each component of the material is mutually independent, but the final property of the material is not simply superposed with the properties of each component, but has extremely important improvement. The metal layers with different properties are combined by a specific process, and the combination interface of the metal layers is often a weak point of the properties, so that in order to ensure the reliability and the safety of the materials in actual use, it is very important to accurately test the combination strength of the materials. Currently, the testing methods of the bonding strength of the metal layered composite material mainly comprise GB/T6396-2008 composite steel plate mechanical and technological property testing methods and GB12948-91 sliding bearing bimetal bonding strength destructive testing methods. GB/T6396-2008 adopts static pressure and passes through corresponding bonding test device, makes matrix and composite material perpendicular to acting force direction receive a normal pulling force on annular faying surface, until fracture to determine its bonding strength, and this method is only applicable to the relatively thicker sample of composite layer, if the material composite layer is thinner, is liable to take place deformation and tearing at the position that the stress of sample composite layer concentrates, reduces the accuracy of testing result. GB12948-91 provides 2 methods such as a tensile test method, a compression test method and the like used for testing the bimetal bonding strength aiming at a sliding bearing product, the testing principle is the same as that of GB/T6396-2008, the annular bonding surface of a sample is subjected to the tensile force to break, the tensile test method adopts a hinge device, the position of the test device on a testing machine is required to be carefully adjusted, and the problems of complex tool structure, complex testing process and the like exist. Therefore, it is necessary to provide an auxiliary tool for testing the bonding strength of the metal layered composite material with a simple structure, so that the deformation and tearing of the sample composite layer in the testing process are reduced, and the accuracy of the detection result is improved. Disclosure of utility model The utility model aims to provide an auxiliary tool for testing the bonding strength of a metal layered composite material, which is used for clamping a sample in the process of testing the bonding strength and can prevent the metal composite layer of the material from deforming or tearing in the process of testing. The technical scheme adopted by the utility model is as follows: The auxiliary tool for testing the bonding strength of the metal layered composite material comprises a cylindrical sample locking mechanism, wherein an upper pull rod is connected to the center of the upper portion of the cylindrical sample locking mechanism, a T-shaped sample groove penetrating through the cylindrical side face of the cylindrical sample locking mechanism is arranged in the center of the lower portion of the sample locking mechanism and used for being connected with the upper portion of a sample, and a lower pull rod is arranged on the upper portion of the lower pull rod and used for being connected with the lower portion of the sample. The utility model is also characterized in that: two handles which are 180 degrees are fixed on the circumferential surface of the side surface of the sample locking mechanism. The center of sample locking mechanism upper portion is provided with the screw hole along the axial, and the upper pull rod passes through the screw hole and is connected with sample locking mechanism. The whole longitudinal section of the sample is of an inverted I-shaped structure with long upper part and short lower part. The sample comprises a metal composite layer and a matrix metal, and the contact part of the metal composite layer and the matrix metal is a bonding surface. The transverse part of the upper part of the sample is a metal composite layer, the transverse section of the sample is round or racetrack, the middle part of the sample is of an elongated cylindrical structure, the lower p