Rubber Auto Products

Rubber Injection Molding Products Good Advantages:

Compared to other rubber processing techniques, rubber injection molding has the following advantages:
1. Large single production capacity: The single production capacity of rubber injection molding machines is generally between tens to thousands of grams, greatly improving the yield of finished products.
2. High product accuracy: The rubber injection molding machine can accurately control the temperature, pressure and other parameters of the material during the molding process, greatly improving the accuracy of the product.
3. Short molding cycle: Because rubber injection molding can simultaneously shape multiple products and has a high production capacity, the molding cycle is relatively short.
4. High finished product quality: Rubber injection molding can reduce problems such as uneven molding and bubbles, thereby significantly improving product quality.
Overall, rubber injection molding technology has broad application prospects in the field of rubber product processing and has become an important part of the rubber industry.

Rubber Injection Molding Products Process

Firstly, prepare the raw materials. Raw rubber is the most basic, followed by auxiliary materials used to improve certain product properties (such as acid and alkali resistance, insulation, and flame resistance), and finally fibers and metal materials used to limit product deformation. Although there are only a few materials, the amount of each raw material used is very particular, which is also the key to testing the experience level of workers.
The second step is to refine. Because raw rubber is elastic and not conducive to processing, and molding is the process of making raw rubber malleable,
The third step is mixing. We often hear that products need to have chemical resistance, oil resistance, flame resistance, insulation, and other properties. These properties are obtained by adding auxiliary materials (such as flame retardants, anti-static agents, fillers, etc.) in this step. The specific method is to mix the plasticized raw rubber with the compounding agent, and stir it in the rubber mixer to ensure that the compounding agent and the raw rubber are fully and evenly mixed together. Mixing is an important process in the production process. If the plasticized raw rubber and the compounding agent are not mixed evenly, it will ultimately affect the performance of the product.
The fourth step is molding. This step is to see the actual process of seeing silicone rubber products. There are many molding methods, such as compression molding, extrusion molding, injection molding, and rolling molding. Due to the excessive content, limited space, and excessive professionalism, please Baidu yourself,
The fifth step is vulcanization. Sulfurization is the process of adding some sulfurizing agents such as sulfur to semi-finished products, heating them at a set temperature, and finally converting them into an elastic process. It should be noted that insufficient or too long vulcanization time can affect the performance of the product
The final step is inspection, including visual inspection (whether there are burrs/defects), dimensional inspection (whether the size is correct), performance testing (whether it has chemical resistance, oil resistance, flame resistance, insulation, etc.)

Rubber Auto parts production of machine

Rubber Injection Molding Machine Advantages

Improve Efficiency

A fully automatic machine can increase production capacity by 10 times 20 times, used the servo motor

Improve Quality

The quality of automatic operation is stable and will not fluctuate due to artificial factors

Low Cost

Fully automatic machines save time and use materials more precisely, saving costs and electricity

Turnkey Machine

We improve after-sales service, you have no worries, lift-time services

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Common problems and solutions in rubber injection molding:

1. The mold produces bubbles
The generation of bubbles inside the mold during rubber injection molding is a common problem. There are many reasons for the formation of bubbles, such as foreign objects in rubber materials, mold temperatures that are too high or too low, uneven rubber injection, and so on. To address this issue, the following measures can be taken:
(1) Seal the mold to prevent foreign objects from entering;
(2) Control the mold temperature to ensure stable temperature during the injection process;
(3) Change the injection angle to ensure even rubber injection.
2. Inconsistent hardness
The hardness of rubber products is an important indicator of their quality, but inconsistent hardness is a common problem during injection molding. There are many reasons for inconsistent hardness, such as unreasonable processes, uneven rubber materials, or unsuitable product requirements. The methods to solve hardness inconsistency include:
(1) Optimize the process to ensure stable parameters such as temperature and pressure during the injection process;
(2) Use rubber materials with stable quality;
(3) Improve product design to ensure even force distribution of rubber materials during the injection process.
3. Shear fracture
Shear fracture is another common problem during rubber injection molding. This may be caused by unreasonable mold design, excessive injection pressure, or fast injection speed. To avoid shear fracture, the following measures need to be taken:
(1) Optimize mold design to ensure uniform force distribution during the injection process;
(2) Control injection pressure and speed to avoid excessive stretching of rubber materials;
(3) Select high-strength and wear-resistant rubber materials.


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