What are the steps involved in the production process of tire rubber?

The production process of tire rubber mainly includes the following steps:

1、 Raw material preparation

Rubber material selection:

Natural rubber: latex cut from rubber trees and processed to produce excellent elasticity and wear resistance.

Synthetic rubber: synthesized through chemical methods, such as styrene butadiene rubber, butadiene rubber, etc., with different physical and chemical properties, can be selected according to needs.

Other additives:

Carbon black: As a reinforcing agent and filler, it improves the wear resistance and strength of tires.

Vulcanizing agent: such as sulfur, transforms rubber from a plastic state to an elastic state, forming a stable cross-linked structure.

Accelerators and catalysts: accelerate the vulcanization process and improve vulcanization efficiency.

Antioxidants, anti scorching agents, softeners and other additives: improve the processing performance and finished product performance of tire rubber.

2、 Ingredients and mixing

mixed ingredients:

Accurately weigh various raw materials according to the tire formula requirements.

Mixing:

Mix rubber materials with other additives in a mixer or open mill.

By mixing, various raw materials are evenly dispersed in rubber to form a uniform mixture.

3、 Rolling and extrusion

Rolling:

Press the mixed rubber material into thin sheets or strips through a rolling mill.

During the rolling process, it is necessary to control the rolling temperature and pressure to ensure the uniformity and continuity of the rubber material.

squeeze:

Squeeze the rolled rubber material into the desired shape and size through an extruder.

During the extrusion process, it is necessary to control the extrusion temperature and speed to ensure the quality and performance of the tire rubber.

4、 Molding and vulcanization

forming:

Place the extruded tire rubber components into the mold and shape them into various parts of the tire through pressure.

During the molding process, it is necessary to ensure the accuracy and temperature control of the mold to ensure that the size and shape of the tire meet the requirements.

Sulfurization:

Put the formed tire into the vulcanizing machine for vulcanization treatment.

During the vulcanization process, the rubber material undergoes cross-linking reaction through heating and pressure, forming a stable network structure.

The vulcanized tire has excellent elasticity, wear resistance, and strength.

5、 Inspection and testing

Appearance inspection:

Inspect the appearance of vulcanized tires to ensure that there are no defects such as cracks or bubbles.

Performance testing:

Conduct various performance tests on tires, such as wear resistance, tensile strength, hardness, etc.

Through testing, ensure that the quality of the tires meets relevant standards and requirements.

6、 Packaging and storage

packing:

Pack the tires that have passed inspection to prevent damage during transportation and storage.

Storage:

Store the packaged tires in a dry and ventilated warehouse, avoiding direct sunlight and high temperature environments.

In summary, the production process of tire rubber is a complex and refined process that requires strict control of the conditions and parameters of each link to ensure that the quality and performance of tire rubber meet relevant standards and requirements.