1. Injection molding
Injection molding is a common production process. First, the rubber raw material is heated to a molten state, and then the molten rubber is injected into a mold of a specific shape by an injection molding machine. In the mold, the rubber quickly cools and solidifies to form a handle rubber shell that is consistent with the shape of the mold.
The advantage of this process is that it has high production efficiency and can achieve large-scale production. At the same time, injection molding can produce products with high dimensional accuracy to ensure the fit between the rubber shell and the handle. In addition, by adjusting the injection molding parameters, performance indicators such as the thickness and hardness of the rubber shell can be controlled. However, injection molding also has some limitations. For example, the mold cost is high, which may not be economical for small batch production. Moreover, there may be certain restrictions in design, and complex shapes may be difficult to achieve through injection molding.
2. Compression molding
Compression molding is another commonly used production process. The rubber raw material is first made into a sheet or block, and then placed in a preheated mold. By applying pressure and high temperature, the rubber flows in the mold and fills the entire cavity, eventually forming a handle rubber shell.
The advantage of compression molding is that it can produce products with more complex shapes, and it has good adaptability for some specially designed handle rubber shells. At the same time, the process is relatively simple, the mold cost is relatively low, and it is suitable for small and medium-sized batch production. However, the production efficiency of compression molding is relatively low, and the dimensional accuracy of the product may not be as high as that of injection molding. Moreover, during the compression molding process, parameters such as pressure and temperature need to be strictly controlled to ensure the stability of product quality.
3. Extrusion molding
Extrusion molding is mainly used to produce long strips of rubber products. For handle rubber shells, rubber tubes or rubber strips can be produced by extrusion molding, and then cut and processed to form the desired shape.
The advantage of extrusion molding is high production efficiency and the ability to produce a large number of products continuously. At the same time, the process can realize the production of rubber shells with different cross-sectional shapes, and has a certain degree of flexibility. However, the products of extrusion molding may not be as good as injection molding and compression molding in terms of dimensional accuracy and shape complexity. In addition, the rubber products after extrusion need to undergo subsequent processing, which increases the production process and cost.
4. Vulcanization treatment
Whether it is injection molding, compression molding or extrusion molding of rubber shells, vulcanization treatment is usually required. Vulcanization is the process of cross-linking rubber molecules, thereby improving the strength, elasticity, wear resistance and aging resistance of rubber. The vulcanization process is usually carried out at a specific temperature and pressure, and the duration depends on the type of rubber and product requirements.
In short, there are many different production processes for Handle rubber shells, and each process has its advantages and disadvantages. In actual production, it is necessary to select the appropriate production process based on product requirements, production quantity, cost and other factors to ensure the production of high-quality Handle rubber shell products.
