Fabricated Francis Runner

Fabricated Francis Runner

	High accuracy vane profile
	Even vane profile
	Improvement of working conditions

Flow of diagnosis

1.Raw material and single piece processing

2.Assembly

3.Inspectin of consutruction

4.Welding part ND inspection

5.Finishing

System

Manufacturing Method Conventional Method Wolding Method Raw materials All-in-one casting Built-up casting Surface finish Hand finishing grinder NC machining(partially hand finishing) Size of runner Medium-small Maximum dia. : over 1100 mm Profile accuracy Good Excellent(unifying dimensions & wave) Quality Good Excellent Working conditions Not good(dust, vibration, noise) Good Worker's conditions Not good Good Prospect Not good Excellent