Suitable for measuring: rounds, squares, rectangles, flats, triangles, hexagons and angles. Also for tubes and pipes.

Measurement System

The Hot Profiler is an oscillating profile measurement system designed for in-line measurement of products in section and bar mills. The system measures on hot or cold rolled material passing through the gauge and present measurement in 2D and 3D graphs as well as numerical values of key figures.  

Measuring method

The HotProfiler uses up to 18 synchronized laser

triangulation sensors mounted on a circular base plate

with the lasers directed to the centre of the wheel. The

mounting angle between the lasers is 20 degrees and the

wheel oscillates through an arc of ± 150 degrees. Each

laser precisely measures the distance to the hot or cold bar. The

software incorporates a patented algorithm ensuring that the

movement of the bar in the measuring field does not affect

the measuring accuracy. This method gives a high number

of highly detailed cross sections which provides a much

more detailed analysis of the shape than a typical 4 or 6 axis

shadow based measuring system. Furthermore this principle

detects all concave and convex surface defects. The system

incorporates an automated self centring mechanism to

adjust the height of the measuring wheel to suit the mill pass

line. A pyrometer measures the material temperature for hot

to cold conversion of the measurements. A large remote

display shows key measured values.

Applications

Round/hex bars from Ø 5mm to Ø 650mm
Square bars (a x a) in the range a of 5…600mm
Flat bars (t x w) in the range of (t=5…80) x (w=20…600)mm

Software

The software is designed for client/server mode. Several clients can be connected to one server. The server software collects data from the measurement system and handles communication with 2nd level systems. The client software calculates and displays the shape of the measured product graphically with cursors for max/min and two selectable cursors. Trend graphs show key dimensions over the length of the product. Numerical values display key figures of the product and the material temperature as well as the temperature inside the measurement frame. Nominal data from the 2nd level system is also presented. Hot measurement data is converted to cold data.

 

Benefits

Complete cross section profile measured with no missed areas

Instant recognition of rolling errors such as underfill, overfill,

roll misalignment, concave and convex surfaces, allowing

operator to take immediate action reducing scrap.

 

Mill setup time dramatically reduced between product changes, eliminating need for manually measuring of bars.