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[Chemical Knowledge]：The production and manufacturing method and process of rubber accessories.

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The manufacturing method
of rubber accessories
1. Introduction

Rubber accessories are an important part of chemical production and play a key role in improving the performance and quality of rubber products. This article will detail the manufacturing method of rubber accessories, including raw material preparation, mixing, molding and vulcanization process steps.

2. Raw material preparation

1. Natural rubber: Select high-quality natural rubber as the main material to ensure the elasticity and wear resistance of the auxiliary materials.
2. Synthetic rubber: According to product requirements, synthetic rubber such as styrene-butadiene rubber and butadiene rubber can be used to improve the oil resistance, acid and alkali resistance of accessories.
3. filler: such as carbon black, white carbon black, etc., to improve the strength and hardness of rubber accessories.
4. Plasticizer: such as plasticizer, used to adjust the hardness and plasticity of rubber.
5. antioxidant: delay rubber aging, improve service life.

3. mixing process

1. Mixer mixing: the raw materials into the mixer, high temperature, high pressure mixing, the rubber and filler fully mixed.
2. Open mixer mixing: put the rubber mixed by the internal mixer into the open mixer, add the remaining raw materials, and further mix evenly.

4. molding process

1. extrusion molding: the mixed rubber through the extruder head to form the desired shape of semi-finished products.
2. Calendering: The compound is placed on the calender, and the semi-finished product with the required thickness and width is made by the pressure and temperature of the roller.

5. vulcanization process

1. Molding vulcanization: Put the molded semi-finished product into the mold, add a vulcanizing agent, and carry out a vulcanization reaction at a certain temperature and pressure to crosslink the rubber molecules and improve the physical properties of the auxiliary materials. And service life.
2. Injection vulcanization: The rubber and vulcanizing agent are injected into the vulcanizing machine, and the vulcanization reaction is completed by high temperature and high pressure.

6. Quality Control

In the manufacturing process, strict quality control is required for each step of the process, including the quality of raw materials, mixing uniformity, molding dimensional accuracy, and vulcanization degree. At the same time, it is also necessary to test the performance of the final product to ensure that it meets the relevant standards and quality requirements.

7. environmental protection and safety

in the manufacturing process, need to pay attention to environmental protection and safety issues. Try to choose environmentally friendly and non-toxic raw materials to reduce the emission of waste gas, waste water, waste residue and other pollutants in the production process. At the same time, it is necessary to strengthen the safety training and education of employees to ensure the safe and smooth progress of the production process.

8. conclusion The manufacturing method of

rubber accessories involves multiple process steps and links, and it is necessary to strictly control the process parameters and quality indicators of each link to ensure the quality and performance of the final product. At the same time, we also need to pay attention to environmental protection and safety issues, and promote green production and sustainable development. Through continuous technological innovation and improvement, the production efficiency and quality level of rubber accessories can be improved, and the development of chemical production field can be contributed.

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