ROTOMAC® BQ HOT TESTER
The Rotomac® BQ rotary eddy current test system is successfully detecting long, continuous defects in hot wire during production in a key Scandanavian steel hot mill. Used in conjunction with an encircling coil eddy current test, the system offers reliable detection of both short and long defects in hot wire.
The rotary eddy current test utilizes test probes which spin around the wire as it passes through. The helix test pattern that results detects long defects that are present, at each pass. By using rotary probes to detect long defects in combination with an encircling coil to detect short defects, the Rotomac BQ detects the widest range of flaws, even at the high through put speeds typical of wire production.
The electronics analyze and present an integrated screen of the data from both the rotary and encircling tests on a monitor. Results are color coded for severity. Low level defects can be counted per unit of length and defects detected by the rotary and encircling tests can be recorded, integrated, stored and networked.
Systems for wire ranging up to 37mm diameter are available. Customers who already have an encircling coil system in place can “upgrade” to a Rotomac® BQ complete system with the addition of the rotary tester. For new installations, the customer can install the complete system or begin with either an encircling or rotating test, depending on the type of defects that are most prevalent, and then add the other test at a later date.
- Testing wire in hot rolling mills
PDF File: ROTOMAC BQ.pdf
For Use With: Bars and Rods, Wire