Defect scriber
Abstract
This disclosure describes a device for repeatably scribing a V-shaped scratch having sharply defined dimensions on the interior surface of a nuclear reactor fuel rod tube. A cutting tool having a V-shaped cutting tip is supported within the fuel rod tube so that the V-shaped cutting tip can be pivoted about an axis and scribe a scratch on the interior surface of the fuel rod tube. Lengthwise the scratch runs parallel to a line drawn through the axis of the fuel rod tube and is in the shape of an arc, and widthwise the scratch is V-shaped. This shape is used because the dimensions of the scratch can be plugged into appropriate formulas to calculate stress intensity of cracks in fuel rod tubes. Since the fuel rod tubes which are to be scribed may be radioactive, the scratching assembly is designed for use in a fixture which allows it to be operated in a cave by remote control handling devices.
- Inventors:
-
- Hickory Hills, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 863336
- Patent Number(s):
- 4151773
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- defect; scriber; disclosure; describes; device; repeatably; scribing; v-shaped; scratch; sharply; defined; dimensions; interior; surface; nuclear; reactor; fuel; rod; tube; cutting; tool; tip; supported; pivoted; axis; scribe; lengthwise; runs; parallel; line; drawn; shape; widthwise; plugged; appropriate; formulas; calculate; stress; intensity; cracks; tubes; scribed; radioactive; scratching; assembly; designed; fixture; allows; operated; cave; remote; control; handling; devices; remote control; nuclear reactor; interior surface; cutting tool; reactor fuel; fuel rod; disclosure describes; sharply defined; /83/376/976/
Citation Formats
Russell, Harold C. Defect scriber. United States: N. p., 1979.
Web.
Russell, Harold C. Defect scriber. United States.
Russell, Harold C. Mon .
"Defect scriber". United States. https://www.osti.gov/servlets/purl/863336.
@article{osti_863336,
title = {Defect scriber},
author = {Russell, Harold C},
abstractNote = {This disclosure describes a device for repeatably scribing a V-shaped scratch having sharply defined dimensions on the interior surface of a nuclear reactor fuel rod tube. A cutting tool having a V-shaped cutting tip is supported within the fuel rod tube so that the V-shaped cutting tip can be pivoted about an axis and scribe a scratch on the interior surface of the fuel rod tube. Lengthwise the scratch runs parallel to a line drawn through the axis of the fuel rod tube and is in the shape of an arc, and widthwise the scratch is V-shaped. This shape is used because the dimensions of the scratch can be plugged into appropriate formulas to calculate stress intensity of cracks in fuel rod tubes. Since the fuel rod tubes which are to be scribed may be radioactive, the scratching assembly is designed for use in a fixture which allows it to be operated in a cave by remote control handling devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}