A well-known fact about the operation of the electric arc furnace is that the water-cooled panels take away a considerable amount of the heat produced during melting cycle resulting in a reduced efficiency. Currently it is known that having a good slag cover will help reduce energy loss, damage to the pipes on the panels and increase life to a certain extent. However, the slag is not enough to keep the heat inside the furnace and so water continues to…
What is it? It is an alternative procedure that replaces the hydrostatic test, using pressurized inert gas in the water cooled components with an ultrasound leak detection equipment. Objective: Replace the hydrostatic test by a pneumatic pressure test in order to avoid remnants of fluids (water or antifreeze) inside the water-cooled circuits and detect even the smallest leaking spots before shipping the fabricated items to our customers. Remnants of liquids from hydrostatic test will freeze when exposed at low temperatures…
Different physical damages due to: Scrap impact Arcing Exposition to radiation of electric arc. Burner flame rebound Corrosion Thermal fatigue of the pipe base material When prevention is not possible, the option is to periodically verify the integrity of the panels in order to detect the problems on time. Periodical inspection of the panel’s exposed surface To determine if there’s any existing damage that might result in a failure and repair it before it causes a major issue in the…
