Overview
| Project No. | 4 |
|---|---|
| Contract No. | DTR 55681-C-00030 |
| Research Award Recipient | Dept. of Mechanical Engineering, Texas A&M University |
| AOTR | Empty Value |
| Researcher Contact Info | Texas A&M University Texas Transportation Institute 3135 TAMU College Station, TX 77843 |
| Project Status | Closed |
|---|---|
| Start Fiscal Year | 1981 (10/01/1980) |
| End Fiscal Year | 1982 (09/30/1982) |
| PHMSA $$ Budgeted | $0.00 |
Main Objective
Determination of a means of establishing the conditions for an optimum heat fusion cycle for thermoplastic pipeline joints.
Public Abstract
A means of establishing the conditions for an optimum heat fusion cycle for a given material has been determined. By investigating the effect of each of the processing parameters of temperature, heating time, heating pressure, and fusion pressure individually an optimum heat fusion cycle was specified. Joints were produced in pipes at various pressures, temperatures and weld times. The joined sections were then subject to tensile tests to determine joint tensile strength and elongation. Also, acoustic emissions were monitored during the tensile tests to determine if correlations existed between these emissions and conditions prior to failure.
Status History
Final report issued July 1992.