Stainless Steel Ceramic Sleeve Lined Pipe for Lithium Battery Powder Conveying – Batch Project

Project Background

This project involved the batch production of flanged stainless steel pipes lined with integral alumina ceramic sleeves.

The pipe sections were designed for a lithium battery powder conveying line. In addition to wear resistance, the internal structure needed to provide a consistent powder-contact surface and reduce unnecessary exposure to the stainless steel outer pipe.

Engineering Focus

The project was not evaluated only according to ceramic thickness. Several construction details required attention:

• Finished internal diameter after lining
• Alignment between adjacent ceramic rings
• Ceramic termination at both flange ends
• Consistency of the internal flow passage
• Pipe and flange dimensions according to the confirmed drawings

Integral ceramic sleeves were selected to provide full-circumference protection and reduce longitudinal joints along the powder-flow direction.

Manufacturing and Inspection

Before ceramic installation, the stainless steel pipe dimensions, flange arrangement and ceramic ring fit were checked.

During assembly, the ceramic sleeves were installed in sequence to maintain a consistent internal bore. Particular attention was given to ring joints and flange-end transitions, as these positions may become localized wear points if internal steps are created.

Final inspection included:

• Ceramic-lined bore condition
• Ceramic joint alignment
• Finished internal diameter
• Flange dimensions and orientation
• Weld appearance
• Conformity with the confirmed drawings

Packing and Delivery

After inspection, the finished pipe sections were individually protected. Flange faces and ceramic-lined openings were covered to reduce the risk of impact, moisture and foreign-material entry.

The pipes were then secured on steel racks according to their dimensions and weight before batch dispatch.

Project Conclusion

This project demonstrates that a ceramic sleeve-lined pipe is not simply a stainless steel pipe with ceramic added inside.

For lithium battery powder conveying, the value of the lining depends on the continuity of the powder-contact surface, the alignment of the ceramic rings and the treatment of every internal transition.

Elacera — Wear Protection Expert