Mold classification and processing technology of vulcanized automobile tire

Classification of automobile tire molds:

1. The flexible mold is composed of pattern ring, mold sleeve and upper and lower side plates.
2. The two half mold is composed of an upper mold and a lower mold.

Processing technology of automobile tire mould (taking mould as an example):

1. Casting or forging the blank according to the tire die drawing, and then rough turning the blank and heat treatment. The tire mold blank shall be annealed to eliminate internal stress. It shall be flattened during annealing to avoid excessive deformation.
2. Drill the lifting hole according to the drawing, then process the outer diameter and height of the pattern ring in place according to the semi finishing drawing, turn the inner cavity of the pattern ring with the semi finishing procedure, and use the semi finishing sample plate for inspection after turning.
3. Use the processed tire mold pattern electrode to form the pattern in the pattern ring by EDM, and use the sample plate for inspection.
4. Divide the pattern ring into several parts according to the requirements of the manufacturer, draw the marking lines respectively, put it into the tooling, punch the back waist hole and tap.
5. According to the equal parts divided in procedure 8, align and cut at the scribed line.
6. The cut pattern block shall be polished, corners cleaned, roots cleaned and exhaust holes drilled according to the requirements of the drawing.
7. Sand shall be sprayed evenly inside the cavity of the pattern block, and the color shall be consistent.
8. Combine and assemble the tread ring, mold sleeve and upper and lower side plates to complete the tire mold.

Mold Classification and Processing Technology of Vulcanized Automobile Tire

Vulcanized automobile tires are essential components of modern vehicles. They are made using a complex manufacturing process that involves several stages, including mold classification and processing technology. In this article, we will explore the different types of molds used in tire manufacturing and the processing technologies used to produce high-quality vulcanized automobile tires.

Mold Classification

There are two main types of molds used in the manufacture of vulcanized automobile tires:

1. Curing Molds

Curing molds are used to shape the tire tread, sidewall, and bead during the curing process. These molds are typically made of high-strength steel and are designed to withstand high temperatures and pressures. They are also designed to create a precise tread pattern and sidewall profile to ensure the tire’s optimal performance.

2. Building Drums

Building drums are used to assemble the different layers of rubber that make up the tire. The drums are typically made of a durable material, such as aluminum or steel, and are designed to rotate slowly while the tire is being built. Building drums are also designed to maintain a precise diameter and to apply consistent pressure to ensure that the different layers of rubber are evenly distributed.

Processing Technology

The process of manufacturing a vulcanized automobile tire involves several stages. Here are the key processing technologies used in the production of high-quality tires:

1. Mixing

The mixing stage involves combining different types of rubber, fillers, and other materials to create a rubber compound. The rubber compound is then shaped into a sheet and cut into the appropriate size for the tire.

2. Building

The building stage involves assembling the different layers of rubber that make up the tire. The inner liner, bead, and carcass plies are assembled on a building drum, and the tread and sidewall components are added on top. The layers are then wrapped around the drum and vulcanized to create a single tire component.

3. Curing

The curing stage involves heating the tire in a curing mold at high temperatures and pressures. The heat causes the rubber to vulcanize, which creates a strong, durable, and flexible tire. The curing process also creates the precise tread pattern and sidewall profile that is essential for the tire’s performance.

4. Inspection and Testing

After the tire has been cured, it undergoes a rigorous inspection and testing process to ensure that it meets strict quality standards. The tire is inspected for defects such as bubbles, air pockets, or uneven tread wear. It is also tested for performance factors such as rolling resistance, wet and dry grip, and durability.

Conclusion

Vulcanized automobile tires are essential components of modern vehicles. They are made using a complex manufacturing process that involves several stages, including mold classification and processing technology. The two main types of molds used in tire manufacturing are curing molds and building drums. The different layers of rubber that make up the tire are assembled on a building drum and vulcanized in a curing mold. The tire is then inspected and tested to ensure that it meets strict quality standards. By understanding the different types of molds and processing technologies used in tire manufacturing, we can appreciate the complexity and precision involved in producing high-quality vulcanized automobile tires.