Method for bonding a metal substrate and a rubber piece

Abstract

The method for bonding metal base and rubber part of the present application comprises: preparing an adhesive, which comprises propyl methacrylate, propyl acrylate and a cross-linking agent; coating the adhesive on the surface of the metal base to form an adhesive film; performing vacuum treatment on the adhesive film to remove bubbles; placing a rubber part on the adhesive film and applying pressure to the rubber part for a predetermined time; and performing heat treatment on the rubber part together with the metal base. The bonding method is simple and easy to operate, has high internal bonding strength and is less likely to separate, can effectively protect the performance of the product and prolong the service life, and is environment-friendly, thus being suitable for popularization and application.

Description

Technical Field

[0001] This invention relates to the field of material bonding, and more particularly to a method for bonding a metal substrate and a rubber part. Background Technology

[0002] In industry, bonding between metals and rubber is frequently involved. This type of bonding provides excellent sealing and wear resistance, effectively protecting the metal while also offering good corrosion resistance to ensure product performance and lifespan. However, existing bonding methods have some drawbacks, such as low bond strength, instability, and environmental pollution.

[0003] Therefore, it is necessary to provide a method for bonding metal substrates and rubber parts to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a bonding method for metal substrates and rubber parts. This bonding method is simple and easy to implement, has high internal bonding strength, is not prone to separation, can effectively protect the performance of the product and extend its service life, and is also environmentally friendly and suitable for widespread application.

[0005] To achieve the above objectives, the bonding method for a metal substrate and a rubber component according to the present invention includes the following steps:

[0006] An adhesive is prepared, wherein the adhesive comprises methyl acrylate, ethyl acrylate, and a crosslinking agent;

[0007] The adhesive is applied to the surface of a metal substrate to form an adhesive film.

[0008] The adhesive film is subjected to vacuum treatment to remove air bubbles;

[0009] The rubber component is placed on the adhesive film, and pressure is applied to the rubber component for a predetermined time; and

[0010] The rubber part, together with the metal substrate, is subjected to heat treatment.

[0011] Compared with existing technologies, the bonding method of this invention is simple and easy to implement. The adhesive raw materials used are simple, readily available, low in cost, and environmentally friendly. After being coated onto a metal substrate to form an adhesive film, vacuum treatment is used to remove air bubbles, which improves the bonding effect. The rubber part is bonded to the adhesive film by applying pressure, followed by heat treatment to induce a vulcanization reaction, thereby greatly enhancing the bonding strength and obtaining a composite material with excellent bonding performance. This bonding method is simple and easy to implement, has high internal bonding strength, is not prone to separation, effectively protects the performance of the product and extends its service life. At the same time, this method is environmentally friendly and suitable for widespread application.

[0012] As an example, the weight ratio of methyl propylene to ethyl propylene is 6:3-4:1.

[0013] As an example, the crosslinking agent accounts for 10%-15% by weight.

[0014] As an example, the pressure applied to the rubber component is 3-6 MPa, and it is kept at room temperature for a predetermined time of 24-36 hours.

[0015] As an example, the heat treatment specifically includes: controlling the heat treatment temperature to 110-130℃ and holding it for 2-3 hours.

[0016] As an example, the heat treatment is followed by a cooling treatment of the rubber part and the metal substrate.

[0017] As an example, the cooling temperature of the cooling process is 15-25°C.

[0018] As an example, the surface of the metal substrate is cleaned with a solvent before applying the adhesive. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific implementation methods of this application are described in detail below with reference to some embodiments. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] The bonding method between the metal substrate and the rubber part of the present invention will be further described below with reference to embodiments, but this does not limit the present invention. The method of the present invention aims to provide a bonding method between a metal substrate and a rubber part, which is simple and easy to implement, has high internal bonding strength, is not prone to separation, can effectively protect the performance of the product and extend its service life, and is also environmentally friendly and suitable for widespread application.

[0024] In one embodiment of the bonding method between the metal substrate and the rubber part of the present invention, the following steps are included:

[0025] An adhesive is prepared, wherein the adhesive comprises methyl acrylate, ethyl acrylate, and a crosslinking agent;

[0026] The adhesive is applied to the surface of a metal substrate to form an adhesive film.

[0027] The adhesive film is subjected to vacuum treatment to remove air bubbles;

[0028] The rubber component is placed on the adhesive film, and pressure is applied to the rubber component for a predetermined time; and

[0029] The rubber part, together with the metal substrate, is subjected to heat treatment.

[0030] The bonding method of this invention is simple and easy to implement. The adhesive raw materials used are simple, readily available, low in cost, and environmentally friendly. After being coated onto a metal substrate, an adhesive film is formed. Vacuum treatment to remove air bubbles improves the bonding effect. The rubber part is bonded to the adhesive film under pressure, followed by heat treatment. Heating induces a vulcanization reaction, which greatly enhances the bonding strength, resulting in a composite material with excellent bonding performance. This bonding method is simple and easy to implement, has high internal bonding strength, and is not prone to separation. It effectively protects the product's performance and extends its service life. Furthermore, this method is environmentally friendly and suitable for widespread application.

[0031] Specifically, in a preferred embodiment, the parts to be bonded are first prepared, namely a metal substrate and a rubber component. Optionally, the metal substrate is an iron plate, and the rubber component is ethylene propylene rubber, but it is not limited to these.

[0032] Next, the parts to be bonded are pre-treated. Specifically, the metal substrate undergoes surface cleaning, including solvent cleaning and removal of surface oxide layers. The rubber parts are then surface-cleaned to remove oil and other impurities.

[0033] Next, an adhesive is prepared. Specifically, the adhesive of the present invention comprises methyl acrylate, ethyl acrylate, and a crosslinking agent. Preferably, the weight ratio of methyl acrylate to ethyl acrylate is 6:3-4:1, and the weight percentage of the crosslinking agent in the total adhesive is 10%-15%. In one embodiment, the adhesive is composed of the following weight ratio: 60% methyl acrylate, 30% ethyl acrylate, and 10% crosslinking agent. The preparation process of the adhesive involves sequentially adding the above components and thoroughly mixing them.

[0034] Next, an adhesive is applied. Specifically, the adhesive is evenly applied to the surface of the metal substrate to form a uniform adhesive film on its surface.

[0035] Next, a vacuum treatment is performed. Specifically, the metal substrate coated with the adhesive is placed in a vacuum treatment device, and air bubbles in the adhesive film are removed through vacuum treatment to improve the subsequent bonding effect.

[0036] Next, rubber bonding. Specifically, the prepared rubber part is placed on the metal substrate treated with the adhesive and subjected to appropriate pressure treatment, for example, the applied pressure is 3-6 MPa, preferably 5 MPa, and kept at room temperature for 24-36 hours.

[0037] Next, heat treatment is performed. Specifically, the bonded rubber parts and the metal substrate are heat-treated together, and the vulcanization reaction is carried out by heating, thereby enhancing the bond strength. In one embodiment, the heat treatment temperature is 110-130°C, and the holding time is 2-3 hours.

[0038] Finally, a cooling treatment is performed. Specifically, the bonded rubber parts and metal substrate are cooled as a whole until completely cooled, resulting in a well-bonded composite material. Optionally, a cooling temperature of 15-25°C is preferred.

[0039] In summary, the bonding method of the present invention is simple and easy to implement, has high internal bonding strength, is not prone to separation, can effectively protect the performance of the product and extend its service life, and is also environmentally friendly and suitable for widespread application.

[0040] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for bonding a metal substrate and a rubber part, comprising the following steps: An adhesive is prepared, wherein the adhesive comprises methyl propylene, ethyl propylene, and a crosslinking agent; The adhesive is applied to the surface of a metal substrate to form an adhesive film. The adhesive film is subjected to vacuum treatment to remove air bubbles; The rubber component is placed on the adhesive film, and pressure is applied to the rubber component for a predetermined time; and The rubber component, together with the metal substrate, is subjected to heat treatment.

2. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The weight ratio of methyl propylene to ethyl propylene is 6:3-4:

1.

3. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The crosslinking agent accounts for 10%-15% by weight.

4. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The pressure applied to the rubber component is 3-6 MPa, and it is kept at room temperature for a predetermined time of 24-36 hours.

5. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The heat treatment specifically includes controlling the heat treatment temperature to 110-130℃ and holding it for 2-3 hours.

6. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The heat treatment is followed by a cooling treatment of the rubber part and the metal substrate.

7. The bonding method for a metal substrate and a rubber part as described in claim 6, characterized in that, The cooling temperature for the cooling process is 15-25℃.

8. The bonding method for a metal substrate and a rubber part as described in claim 1, characterized in that, The process also includes cleaning the surface of the metal substrate with a solvent before applying the adhesive.