Rubber expansion joints are also known as steel wire rubber expansion joints.

The reason why Rubber Expansion Joints are also referred to as steel wire rubber expansion joints is that their internal structure incorporates high-strength steel wires. This design not only enhances the joint's strength but also improves its pressure resistance, enabling it to maintain superior performance in various harsh environments.

Below is a detailed explanation:

Structural Components of Rubber Joints

Rubber expansion joints are typically composed of an inner rubber layer, a fabric reinforcement layer (such as multi-layer rubber-coated nylon cord fabric), a middle rubber layer, an outer rubber layer, and end-reinforcing metal rings or steel wire rings. The inclusion of steel wires or steel cables significantly improves the tensile strength and pressure resistance of the rubber expansion joints.

The Role of Steel Wires

Enhancing Strength: Steel wires effectively increase the joint's strength, allowing it to withstand significant pressure and temperature variations.

Improving Durability: The addition of steel wires further enhances the Rubber Soft Joint's resistance to stretching, ensuring its stability during long-term use.

Therefore, rubber joints are called steel wire rubber expansion joints primarily because steel wires are a key component that elevates the overall performance of the joints, making them more suitable for applications in complex and demanding environments.