Grainger College of Engineering Seminars & Speakers

Part 1 Welding Different Geomembrane Polymers will focus on the following: • Welding PE and PP materials (HDPE, LLDPE. fPP and PP-R) • Welding PVC and similar products ( PVC, CSPE and EIA)

Lectures and discussions on current work in research and development in nuclear engineering and related fields by staff, advanced students, and visiting speakers.

Speaker: Jacob Repicky, Postdoctoral Associate, Yale University

Part 2: Welding Equipment and Selection will focus on the following: • Hot wedge fusion welder – solid and split wedges • Hot air fusion welder • Hand extrusion welder • Adhesive and solvent welding • Data logging technology and its benefits • Equipment setup

Speaker: Liang Jiang, Professor of Molecular Engineering, University of Chicago, Pritzker School of Molecular Engineering

Part 3 Welding Parameters will focus on the following: • Understanding Heat, Speed, and Pressure • Establishing Welding Windows • Importance of Welding Windows • Impact/Dangers/Wrinkles from Ambient conditions • Parameter recommendations • Pre-weld Testing • Correct seam overlap • What if FML is not clean (dust, water, painting)

Lectures and discussions on current work in research and development in nuclear engineering and related fields by staff, advanced students, and visiting speakers.

Part 4 Importance of Seam Testing will focus on the following: • Non-Destructive Testing – air channel, pick, air lance, and vacuum testing • Destructive Testing – In-house and 3rd Party Testing • Factory and Field Testing • What if seam test(s) fails - Patching • Project goal is a liner system that does not leak – work together-welder, CQA, regulator,