2026-04-15
In Polysilicon manufacturing, thermal management is critical for process stability and energy efficiency. The Bimetallic Extruded Fin Tube, featuring a 304L Stainless Steel Base Tube and Aluminum Fins, is the premium choice for Air-Cooled Heat Exchangers (ACHE) in these high-demand environments.
The low-carbon 304L SS offers exceptional resistance to intergranular corrosion from Trichlorosilane (TCS) and Hydrogen Chloride (HCl). It ensures zero contamination of metallic ions, maintaining the high purity required for electronic-grade polysilicon.
Aluminum’s high thermal conductivity combined with an increased surface area ensures maximum heat transfer efficiency, reducing the overall footprint of the cooling system.
Unlike traditional tension-wound fins, the Extruded Fin Tube is manufactured through a high-pressure cold-rolling process.
The mechanical bond between the base tube and aluminum fin is permanent, ensuring consistent heat transfer throughout the equipment's lifespan.
The aluminum sleeve completely covers the 304L base tube, shielding it from external atmospheric corrosion and oxidation.
These fins are rigid and resistant to high-pressure water cleaning, making them ideal for the harsh outdoor conditions of polysilicon plants in regions like Northwest China.
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