Fluorine rubber, because of its excellent high temperature resistance, chemical corrosion resistance and oil resistance, has been widely used in many industrial fields. However, to transform this high-performance material from its original state into a practical product, a series of processing processes are required. The following are the main steps of the fluorine rubber processing process:
1. plasticizing
Plasticizing is the first step in the processing of fluorine rubber, the purpose of which is to break the raw rubber and make it have certain plasticity. In this process, through mechanical means, such as an open mixer or a mixer, the raw rubber is violently stirred and rubbed to break its molecular chain, reduce its viscosity and improve its fluidity.
2. Ingredients
After plasticizing is completed, various additives need to be mixed with the raw rubber after plasticizing. These additives include vulcanizing agents, accelerators, fillers, softeners, etc., their roles are to harden rubber, improve processing performance, change physical properties and adjust costs.
3. mixing
Mixing is the process of further mixing the material after plasticizing and batching. In this step, by using a mixer, the raw glue and additives are thoroughly mixed to form a uniform mixture. This process is essential to ensure the performance of the final product.
4. forming
Molding is the process of processing the mixed rubber material into the desired shape through a specific mold or tool. According to the complexity and accuracy requirements of the product, different molding methods can be used, such as calender, extrusion, injection molding, etc.
5. vulcanization
Vulcanization is the most critical step in the process of fluororubber processing. In the vulcanization process, the rubber molecular chains are rearranged and cross-linked by heating and pressurizing to form a three-dimensional network structure, thereby improving its physical properties and service life. Vulcanization conditions (temperature, pressure, time) have an important impact on the performance of fluororubber, and must be strictly controlled.
6. Post-processing
Vulcanized fluorine rubber requires a series of post-treatment steps, including cooling, stripping, dressing, etc., to ensure its surface quality and dimensional accuracy. In addition, according to the need, further processing can be carried out, such as cutting, drilling, grinding, etc.
7. Summary
The processing technology of fluorine rubber includes plasticizing, batching, mixing, molding, vulcanization and post-treatment steps. These steps require precise control of various process parameters, such as temperature, pressure, time, etc., to ensure the performance and reliability of the final product. In the process of processing, attention should also be paid to prevent the phenomenon of scorching and over-sulfur of the rubber material to ensure the quality and service life of the product. With the continuous development of science and technology, the processing technology of fluorine rubber is also constantly improving and perfecting. Through the use of new processing technology and equipment, the performance of fluorine rubber can be further improved and production costs can be reduced to meet the changing market demand.
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