Method for evaluating bonding properties of a metallic pipe
US6332361A · kind A · utility
17Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2675
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating bonding properties of a metallic pipe, the method comprises steps of measuring, in advance of a pipe expansion operation, at least one selected from a degree of shape discontinuity, a degree of defect at a bonding portion, and a degree of change in crystal structure, and comparing a measurement value with a predetermined threshold value to evaluate suitability of the bonding properties for applying pipe expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.