ACTIVITIES
| No. | Phase title |
| 1. | Phase I - Security in exploitation of the pipelines used for the natural gas supplying
Activity I.1. State-of-art on the security in exploitation of the pipelines used for the natural gas transport Activity I.2. Consortium strategy setting regarding the research methodology applied during project development Activity I.3. State-of-the-art on the calculus of the pipelines. New analytical model for the pipelines calculus Activity I.4. Support activities |
| 2. | Phase II - Approach on the base materials and welding processes used in the pipelines fabrication
Activity II.1. Approach on the pipelines fabrication Activity II.2. Approach on the base materials used in the pipelines fabrication Activity II.3. Approach on the advanced welding processes applied for the longitudinal welded joints of the pipelines Activity II.4. Support activities |
| 3. | Phase III - Tridimensional mathematical modelling of heat transfer at mono and multiarc welding
Activity III.1. Analytical and numerical modelling of the temperature field at monoarc and multiarc welding Activity III.2. Temperature field analysis at mono and multiarc welding. Heating and cooling speeds evaluation Activity III.3. Conception of the system for temperature field monitoring using infrared thermography method Activity III.4. Experimental validation of the mathematical models for the temperature field analysis Activity III.5. Support activities |
| 4. | Phase IV - Conception of the original multiarc welding installation
Activity IV.1. Development of multiarc welding installation prototype Activity IV.2. Multiarc welding technology implementation Activity IV.3. Support activities |
| 5. | Phase V - Completion of Welding specification procedures (WPS) of mono and multiarc welding technologies, with or without cold wire. Mechanical behavior of X70 mono and multiarc welded joints. Activity V.1. The completion of monoarc submerged arc welding procedure specification, with and without cold wire Activity V.2. The completion of biarc submerged arc welding procedure specification, with and without cold wire Activity V.3. The completion of triarc submerged arc welding procedure specification Activity V.4. Mechanical properties evaluation of the X70 welded joints performed by monoarc welding, with and without cold wire Activity V.5. Mechanical properties evaluation of the X70 welded joints performed by biarc welding, with and without cold wire Activity V.6. Mechanical properties evaluation of the X70 welded sjoints performed by triarc welding Activity V.7. The evaluation and comparative study of the X70 welded joints mechanical performances achieved by monoarc and multiarc welding procedures Activity V.8. The establishment of the optimal technologies which ensures the best mechanical performances of the welded joints achieved by using mono and multiarc welding procedures Activity V.9. Support activities Activity V.10. Workshop organizing for research result dissemination Activity V.11. Pattent application |
| 6. | Phase VI - Metallurgical characterisation of the mono and multiarc welded joints. The optimisation of the innovative multiarc welding technologies. of Implementation of multiarc welding technologies of pipelines. Valorisation and dissemination of results.
Activity VI.1. Metallurgical characterization of X70 monoarc welded joints, with or without cold wire Activity VI.2. Metallurgical characterization of X70 biarc welded joints, with or without cold wire Activity VI.3. Metallurgical characterization of X70 triarc welded joints Activity VI.4. The evaluation and comparative study of the X70 welded joints metallurgical performances achieved by monoarc and multiarc welding procedures Activity VI.5. The establishment of the optimal technologies which ensures the best mettalurgical performances of the welded joints achieved by using mono and multiarc welding procedures Activity VI.6. Multiarc welding technology implementation in national industry Activity VI.7. Work visits and best practices Activity VI.8. Dissemination activities Activity VI.9. Workshop organizing for research result dissemination Activity VI.10. Patent Application |
