Super Line-Magna (S-LM)
This system performs fully automatic surface flaw inspection of steel billet utilizing fluorescent magnetic particle testing method while the billet being transferred on the V-roller conveyor. The flaw images captured by CCD cameras are identified through the image processing unit and the Map-data of flaw positions is created and transmitted to the upper controller. The positions of the flaw are marked by the paint markers based on the Map-data for removal in the grinding process later.
Features
- Fully automatic, in-line continuous inspection using CCD cameras and image processing unit, complete control from operation room thus no worker in the inspection area
- Detecting longitudinal, transverse and corner defects simultaneously
- Fast inspection speed, max. 40 m/min.
- Outputting Map-data of flaw positions for each divided section of the billet surface, size of which is 100 mm (longitudinal) x 20 mm (circumferential)
| Main Specification | |
|---|---|
| Type of steel to be inspected | Carbon steel, Low alloy steel and Special steel |
| Dimension | Square billet 100-160 mm sq. (corner R 15-25 mm) |
| Billet transfer speed | Max. 40 m/min. |
| Magnetizing method | Combined magnetization with Yoke coils and Ring coil |
| MPT material | Fluorescent magnetic particle suspension |
| Defects to be detected | Surface breaking natural flaws (crack, scab etc.) |
| Detecting accuracy | Longitudinal flaw (crack): more than 0.3 mm (depth) x 5.0 mm (length) Transverse flaw (scab) : more than 0.3 mm (depth) x 5.0 mm (dia.) (Two detecting levels can be set automatically) |
| Marking color | Surface : White Corner : Red |
| Marking dimension | Unit dimension approx. 15 W mm x 100 L mm |
| Electric power | AC 400/440 V±10%, 3-phase, approx. 300 KVA |
| Air | More than 0.4 MPa, 2.0 Nm3/min. |
| Water | Service water 50 L/min. |
| Main Equipment | |
|---|---|
| Billet washing equipment | Water spray nozzles and Air curtain blow Approx. 800 L x 1200 H x 700 W mm |
| Suspension spraying equipment | Suspension spray nozzles and air blow nozzles to uniform suspension on the bullet surface |
| Magnetizing equipment | 2 sets of Yoke coils and one Ring coil Approx. 1100 L x 1050 H x 860 W mm |
| CCD camera | High-definition progressive scanning camera 44 W x 44 H x 78 D mm |
| Image processing unit | Approx. 800 W x 1100 H x 600 D mm |
| UV light | High intensity Super-Light D-150 |
| Marking machine | Surface : M-20S Corner : M-30S |
| Suspension supply and collection tank unit | Approx. 2000 L x 1500 H x 1000 W mm 2 sets of 500 L tank |
| Mixing tank unit | Approx. 1000 L x 1200 H x 1000 W mm 1 set 500 L tank |
| Blower | 3.75 KW, AC 200 V, 3-phase |
Inspection Procedure
