Stretching element

所属分类: Conveying element

Stretching elements, also known as S-shaped elements, are typically used in pairs—alternating forward and reverse—in the screw. They effectively enhance the material’s ability to exchange relative positions. S-shaped stretching elements are commonly employed in the semi-plasticization zone for modified plastics, where they generate relatively gentle shear and ensure more uniform mixing.

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Detailed description

Technical Details of the Stretching Component

Model: Φ18 mm ~ Φ400 mm

Material: WR5 / WR7 / WR13 / Nickel-based alloy

Performance: Wear-resistant and corrosion-resistant

WR5: The carbides in WR5 are predominantly fine, uniformly dispersed spherical vanadium carbides, with a suitable amount of chromium carbide as a secondary phase. This microstructure delivers excellent wear resistance, superior impact performance, and outstanding spalling resistance, resulting in a service life approximately three times that of 6542 material.

WR7: The carbides in WR7 are predominantly fine, uniformly dispersed spherical vanadium and chromium carbides, with a high carbide content that delivers the best overall wear and corrosion resistance, making it a high-end replacement for WR5.

WR13: Combines wear resistance and corrosion resistance, making it suitable for the battery slurry industry.

Nickel-based alloys: exhibit excellent wear and corrosion resistance.

Stretch Element Function

• Enhances the mixing capability and friction of the material, resulting in improved dispersion.