Special Materiale Spirală Rană Garnituri

Principiul sigilării închiderii

The sealing principle of special materials spiral wound gaskets is mainly based on the elastic and plastic deformation of the gasket material. When the gasket is under pressure, the metal strip will bend, elongate, and shrink, causing the non-metallic material to fill between the sealing surfaces to form a certain sealing force.

In addition, the plastic deformation of the gasket material can fill the gap in the sealing surface, block the leakage channel, and further improve the sealing effect.

Structură și Material

■ The structure and material of special spiral wound garnituri vary depending on the specific type. Generally speaking, spiral wound gasts are composed of metal strips, filling materials, and upper and lower sealing materials.

1. Metal benzi sunt de obicei fabricate din inox oțel, cupru, aluminiu, și altele metal materiale și au caracteristicile de ridicat rezistență, înalt uzură rezistență, și rezistență la coroziune rezistență.

2. Umplutura material de obicei utilizări flexibil grafit, PTFE, și alte materiale la îmbunătăți the sealing performance and high-temperature resistance of the the garnitură.

3. Superioara si inferioara etansare materiale uzual utilizare cauciuc, politetrafluoretilen, and other materials to enhance the sealing performance and corrosion resistance of the garnitura.

■ In terms of structure, special materials spiral wound gaskets can be divided into single-layer metal spiral wound gaskets and multi-layer metal spiral wound gaskets. Single-layer metal spiral wound gaskets are made of a layer of metal strips, while multi-layer metal spiral wound gaskets are made of multiple layers of metal strips. Between the layers, they are connected by welding, soldering, or pressure welding.

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