An adhesive shear strength test piece and its manufacturing method

Abstract

The present invention discloses an adhesive shear strength test piece, which comprises an adhesive test piece A and an adhesive test piece B. The adhesive test piece A and the adhesive test piece B are lap-bonded by an adhesive. The adhesive test piece A is located above the adhesive test piece B, and the centers of the adhesive test piece A and the adhesive test piece B are on the same straight line. The beneficial effects of the present invention are as follows: The adhesive test piece A and the adhesive test piece B are positioned through the positioning holes at both ends, and the middle 12.5 mm is used as the bonding area. After curing, it only needs to be cut along two adjacent strip-shaped perforations in the horizontal direction of the adhesive test piece A close to the bonding area, without affecting the bonded surface.

Description

Technical Field

[0001] The present invention relates to the technical field of testing the mechanical properties of materials, and particularly to an adhesive shear strength specimen and a manufacturing method thereof. Background Art

[0002] During the cutting process after the formation of the existing test plates, local overheating is caused, which damages the bonding interface and thus affects the test results of the shear strength. Summary of the Invention

[0003] The object of the present invention is to provide an adhesive shear strength specimen and a manufacturing method thereof. The bonding specimen A and the bonding specimen B are positioned through the positioning holes at both ends, and the middle 12.5 mm is used as the bonding area. After curing, only cutting is required along two adjacent strip-shaped perforations in the horizontal direction of the bonding specimen A close to the bonding area, without affecting the bonding surface.

[0004] The technical solution of the present invention is realized as follows:

[0005] An adhesive shear strength specimen, comprising a bonding specimen A and a bonding specimen B, wherein the bonding specimen A and the bonding specimen B are lap-bonded through an adhesive. The bonding specimen A is located above the bonding specimen B, and the centers of the bonding specimen A and the bonding specimen B are on the same straight line.

[0006] Further, the bonding specimen A and the bonding specimen B are aluminum plates of 238 mm * 100 mm.

[0007] Further, the bonding specimen A and the bonding specimen B are provided with positioning holes along their length directions, and the positioning holes are symmetrically arranged at both ends of the bonding specimen A and the bonding specimen B.

[0008] Further, the bonding specimen A and the bonding specimen B are overlapped along their length directions and positioned through the positioning holes.

[0009] Further, the width of the bonding area of the bonding specimen A and the bonding specimen B is 12.5 mm.

[0010] An adhesive shear strength specimen, wherein the bonding specimen A and the bonding specimen B are symmetrically provided with strip-shaped perforations along their length directions, and the strip-shaped perforations extend along the width directions of the bonding specimen A and B.

[0011] Further, it includes the following steps:

[0012] Step 1: Lap-bond the bonding specimen A and the bonding specimen B through an adhesive so that the width of the overlapping area is 12.5 mm;

[0013] Step 2: Fix the bonding specimen A and the bonding specimen B through the positioning holes;​

[0014] Step 3: Cut along two adjacent strip-shaped perforations on the horizontal direction of the bonded specimen A close to the bonding area.

[0015] The beneficial effects of the present invention are as follows: The bonded specimen A and the bonded specimen B are positioned through the positioning holes at both ends, and the middle 12.5 mm serves as the bonding area. After curing, only cut along two adjacent strip-shaped perforations on the horizontal direction of the bonded specimen A close to the bonding area, without affecting the bonding surface. After curing, only cut along two adjacent strip-shaped perforations on the horizontal direction of the bonded specimen A close to the bonding area, without affecting the bonding surface. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of a shear strength specimen of an adhesive and its manufacturing method in the prior art;

[0018] Figure 2 It is a structural schematic diagram of a shear strength specimen of an adhesive and its manufacturing method of the present invention.

[0019] In the figure:

[0020] 1. Bonded specimen A; 2. Bonded specimen B; 3. Strip-shaped perforation; 4. Positioning hole. Detailed Embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] According to the embodiments of the present invention, a shear strength specimen of an adhesive and its manufacturing method are provided.

[0024] Refer to Figure 1-2, An adhesive shear strength test piece and its manufacturing method according to an embodiment of the present invention include an adhesive test piece A1 and an adhesive test piece B2. The adhesive test piece A1 and the adhesive test piece B2 are lap-bonded by an adhesive. The adhesive test piece A1 is located above the adhesive test piece B2, and the centers of the adhesive test piece A1 and the adhesive test piece B2 are on the same straight line.

[0025] Further, the adhesive test piece A1 and the adhesive test piece B2 are aluminum plates with a size of 238mm * 100mm.

[0026] Further, the adhesive test piece A1 and the adhesive test piece B2 are provided with positioning holes 4 along their length directions, and the positioning holes 4 are symmetrically arranged at both ends of the adhesive test piece A1 and the adhesive test piece B2.

[0027] Further, the adhesive test piece A1 and the adhesive test piece B2 are overlapped along their length directions and positioned through the positioning holes 4.

[0028] Further, the width of the bonding area of the adhesive test piece A1 and the adhesive test piece B2 is 12.5mm.

[0029] An adhesive shear strength test piece, wherein the adhesive test piece A1 and the adhesive test piece B2 are symmetrically arranged with strip-shaped perforations 3 along their length directions, and the strip-shaped perforations 3 extend along the width directions of the adhesive test pieces A and B1, 2.

[0030] Further, it includes the following steps:

[0031] Step 1: Lap-bond the adhesive test piece A and the adhesive test piece B with an adhesive so that the width of the overlapping area is 12.5mm;

[0032] Step 2: Fix the adhesive test piece A and the adhesive test piece B through the positioning holes;

[0033] Step 3: Cut along the horizontal direction of the adhesive test piece A between two adjacent strip-shaped perforations close to the bonding area.

[0034] As Figure 1 shown, bond the adhesive test piece A and the adhesive test piece B. The 12.5mm overlapping area is the bonding area. After the adhesive test piece A and the adhesive test piece B are cured, a cutting tool is used to cut along the vertical direction of the bonding surface A. Local overheating will be caused during the cutting process, especially when cutting the bonding area. The high temperature will damage the bonding quality of the bonding surface, thus affecting the test results of the shear strength.

[0035] As Figure 2 shown, bond the adhesive test piece A and the adhesive test piece B. The 12.5mm overlapping area is the bonding area. Through both sides The holes are positioned, and the middle 12.5mm is used as the bonding area. After curing, it is only necessary to cut two adjacent strip holes close to the bonding area along the horizontal direction of the bonding specimen A ( Figure 2 direction of B in the figure) without affecting the bonding surface.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An adhesive shear strength test piece, characterized in that, It includes an adhesive test piece A (1) and an adhesive test piece B (2). The adhesive test piece A (1) and the adhesive test piece B (2) are lap-bonded by an adhesive. The adhesive test piece A (1) is located at the upper end of the adhesive test piece B (2). The respective centers of the adhesive test piece A (1) and the adhesive test piece B (2) are on the same straight line. Strip-shaped perforations (3) are symmetrically arranged on both sides of the adhesive test piece A (1) and the adhesive test piece B (2) along their length directions. The strip-shaped perforations (3) extend along the width direction of the adhesive test pieces A and B (1, 2). The adhesive test piece A (1) and the adhesive test piece B (2) are overlapped along their length directions. The center lines of the strip-shaped perforations in the overlapping area of the adhesive test piece A (1) and the adhesive test piece B (2) are on the same straight line and partially overlap.

2. The adhesive shear strength test piece according to claim 1, characterized in that, The adhesive test piece A (1) and the adhesive test piece B (2) are aluminum plates of 238mm * 100mm.

3. The shear strength test piece of an adhesive according to claim 1, wherein, Positioning holes (4) are arranged along the length direction of the adhesive test piece A (1) and the adhesive test piece B (2). The positioning holes (4) are symmetrically arranged at both ends of the adhesive test piece A (1) and the adhesive test piece B (2) along their width directions.

4. A shear strength specimen of an adhesive according to claim 3, wherein, The adhesive test piece A (1) and the adhesive test piece B (2) are positioned through the positioning holes (4).

5. A shear strength specimen of an adhesive according to claim 4, characterized in that, The width of the overlapping area of the adhesive test piece A (1) and the adhesive test piece B (2) is 12.5mm.

6. A method for manufacturing a shear strength test piece of an adhesive as described in claim 3, characterized in that, It includes the following steps: Step 1: Lap-bond the adhesive test piece A and the adhesive test piece B with an adhesive so that the width of the overlapping area is 12.5mm. Step 2: Fix the adhesive test piece A and the adhesive test piece B through the positioning holes. Step 3: Cut along the two adjacent strip-shaped perforations on the horizontal direction of the adhesive test piece A close to the bonding area.

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