CN218330846U

CN218330846U - Binding force test piece

Info

Publication number: CN218330846U
Application number: CN202222094677.9U
Authority: CN
Inventors: 韩佳霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-01-17
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a cohesion test piece, including sheetmetal and plastic piece, the plastic piece makes its end be connected with the sheetmetal end through nanometer intramode injection moulding technology, does not use any adhesion agent, sheetmetal and plastic piece lug connection, and has very big cohesion. The end of the plastic sheet is lapped or butted or partially combined with the end of the metal sheet. The utility model combines the metal sheet and the plastic sheet through the nano in-mold injection molding process, simultaneously provides a plurality of combination modes, combines the contact area, is different along with the design, provides a new combination mode for the combination of metal and plastic, and has higher combination force between the combined metal sheet and the plastic sheet; when the bonding process is normally performed, the larger the contact area of the bond, the greater the corresponding bond strength.

Description

Binding force test piece

Technical Field

The utility model relates to a cohesion test technical field specifically indicates a cohesion test piece that sheetmetal and plastic piece combined together.

Background

When two different materials are used in combination, a binding force test is required in order to detect the binding force of the two materials after combination. The existing products have different shapes, and when different materials are combined with each other, a reasonable and effective binding force test structure cannot be defined, and the test of the manufacturing and binding force of a test piece made of the same material with the product can be performed; the standard is simple, objective and effective.

Therefore, a bonding force test strip with a simple bonding structure is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model provides a technical scheme does: a bonding force test piece comprises a metal piece and a plastic piece, wherein the tail end of the plastic piece is connected with the tail end of the metal piece through a nano in-mold injection molding process, no adhesive is used, the metal piece is directly connected with the plastic piece, and the bonding force test piece has a large bonding force.

As an improvement, the tail end of the plastic sheet is overlapped or butted or partially combined with the tail end of the metal sheet.

Compared with the prior art, the utility model the advantage lie in: the utility model combines the metal sheet and the plastic sheet through the nano in-mold injection molding process, simultaneously provides a plurality of combination modes, combines the contact area, is different along with the design, provides a new combination mode for the combination of metal and plastic, and has higher combination force between the combined metal sheet and the plastic sheet; when the bonding process is normally performed, the larger the contact area of the bond, the greater the corresponding bonding strength.

Drawings

Fig. 1 is a schematic structural view of a bonding force testing sheet of the present invention.

Fig. 2 is a schematic structural diagram of a bonding force testing plate of the present invention.

Fig. 3 is a schematic structural diagram of a bonding force testing sheet of the present invention.

FIG. 4 is a graph showing the binding capacity of three binding structures.

As shown in the figure: 1. metal sheet, 2, plastic sheet, 3, and a combining block.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following will explain the present invention in detail with reference to the drawings.

With reference to the attached drawings 1-4, the specific implementation process of the binding force test strip of the present invention is as follows:

example 1:

with reference to the attached drawing 1, the plastic sheet 2 is overlapped with the metal sheet 1 at the end thereof by a nano-mold injection molding process, and the overlapped area is 0.5cm ² 。

Example 2:

with reference to fig. 2, the plastic sheet 2 is butt-jointed with the end of the metal sheet 1 by the nano-mold injection molding process, and the butt-jointed area is 0.36cm ² 。

Example 3:

with reference to fig. 3, a combining block 3 extends from the end of the plastic sheet 2, the combining block 3 and the plastic sheet 2 are integrally formed, and are combined with the end of the metal sheet 1 by a nano-mold injection molding process, that is, the local part of the plastic sheet 2 is combined with the metal sheet 1, and the area of the local part is 0.16cm ² . The bonding of the bonding pad 3 to the metal sheet 1 in this embodiment is shown on a limited area product as a test point for testing.

The binding force test pieces of examples 1 to 3 were placed in a testing machine for testing to obtain the test data shown in table 1 and the test result chart shown in fig. 4;

table 1: test data sheet

No.	Maximum force (kgf)	Tensile Strength (MPa)
			1	176.320	34.640
2	177.370	34.847
			3	175.820	34.542
Maximum value	177.370	34.847
			Minimum value	175.820	34.542
Median number	176.320	34.640
			Standard deviation of	0.791	0.155
Total standard deviation of	0.646	0.127

It can be seen from the test data and the test result chart of table 1 that the structure that plastic piece 2 and sheetmetal 1 that this application provided combined can bear great pulling force, and then has proved to possess good cohesion between plastic piece 2 and the sheetmetal 1.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a cohesion test piece which characterized in that: the metal sheet comprises a metal sheet (1) and a plastic sheet (2), wherein the tail end of the plastic sheet (2) is connected with the tail end of the metal sheet (1) through a nano in-mold injection molding process.

2. The bonding force test strip according to claim 1, wherein: the tail end of the plastic sheet (2) is in lap joint with the tail end of the metal sheet (1).

3. The bonding force test strip according to claim 2, wherein: the overlapped area between the plastic sheet (2) and the metal sheet (1) is 0.5cm ² 。

4. The bonding force test strip according to claim 1, wherein: the tail end of the plastic sheet (2) is butted with the tail end of the metal sheet (1).

5. The bonding force test strip according to claim 4, wherein: the butt joint area between the plastic sheet (2) and the metal sheet (1) is 0.36cm ² 。

6. The bonding force test strip according to claim 1, wherein: the plastic piece (2) end extends outwards to form a combination block (3), and the combination block (3) is pressed on the surface of the metal sheet (1) to enable the plastic piece (2) and the metal sheet (1) to form local combination.

7. The bonding force test strip according to claim 6, wherein: the bonding area between the plastic sheet (2) and the metal sheet (1) is 0.16cm ² 。