Patent · US Expired

Method for manufacture of tubes of a zirconium-based alloy

US6524169B1 · kind B1 · utility

3Cited by

2References

6Claims

0Family size

Assignee

SANDVIK AB · SE

Inventors

Thomas Andersson · Eskilstuna, SE
Leif Söderqvist · Sandviken, SE

Key dates

Filing date	Oct 1, 2001
Grant date	Feb 25, 2003
Priority date	—
Expiry date	Oct 1, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Method for manufacturing tubes especially for fuel elements and tubes for construction of fuel rod skeletons made of zirconium-based alloy for nuclear reactors and a tube made thereby. The tubes are ground to a surface roughness of &lE;0.2 &mgr;mRa with a belt device of SiC-based belts, so-called “dressed” SiC-based belts with cotton back or SiC-cork belts. The tubes may possibly be polished after grinding with a wheel to a surface roughness <0.25 &mgr;mRa.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.