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FOR
PUBLICATION INQUIRIES:
Phone: 713-630-0505 ext.207 • Fax: 713-630-0560 • Email: info@ttoolboxes.com
Thermal Analysis Model for Hot-Tap Welding Version 4.2 (eBook)
| Category: |
Materials |
| Project Number:
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PR-185-9632 |
| Catalog Number: |
L51837e |
| Hardcopy Version Available: |
Yes, L51837 |
| Publication Date: |
May 07, 2002 |
| Author(s): |
William A. Bruce, Victor Li, and Ron Citterberg |
| Research Agency: |
Edison Welding Institute |
| Pages: |
53 |
| Binding Type: |
PDF |
| Software Included: |
Yes |
| System Requirements: |
The project software is contained in a WinZip file. The software necessary for opening this file is found at the “http://www.winzip.com” website. The extracted software has three options for installation. Please consult the Draft Final Report for installation and operation instructions.
Note: The software includes the PDF version of the manual. If you download the software, there is no need to download the PDF file. 32MB RAM, 10MBHD, Pentium PC, Windows 95/98/NT |
Click
here to view Table of Contents
Abstract:
Need: There are two primary concerns with welding onto in-service pipelines. The first is for welder safety during welding, since there is a risk of the welding arc causing the pipe wall to be penetrated allowing the contents to escape. The second concern is for the integrity of the pipeline following welding, since welds made in-service cool at an accelerated rate as the result of the ability of the flowing contents to remove heat from the pipe wall. These welds, therefore, are likely to have hard heat-affected zones (HAZ) and a subsequent susceptibility to hydrogen cracking.
Benefit: This manual describes the use of the PRCI Thermal Analysis Model for Hot Tap Welding - V4.1, which was developed by Edison Welding Institute (EWI) for PRCI. The model is intended to provide welding engineers with guidance for establishing safe parameters for welding onto in-service pipelines (hot-tap welding).
Result: The model allows burnthrough risk to be controlled by limiting inside surface temperature and hydrogen cracking risk to be controlled by limiting weld cooling rates.
Price: $1,895.00
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