rolling technology - mts sensors€¦ · rolling technology by the pioneers of magnetostrictive...
TRANSCRIPT
Rugged Sensors for Precise and Cost-Saving Roller Positioning
Temposonics®
Absolute, Non-Contact Position Sensors for
Rolling Technologyby the Pioneers of Magnetostrictive Measurement Technology
The Measurable Difference
Tight Tolerances
The demands on hot or cold rolled steel productsare high. The thickness tolerances are subjected to strict,international standards, which must be met or even have to beexceeded in the field. At the same time the surface texture ofthe products have to be extremely homogeneous.
Hydraulic controlling systems adjust the rollers during the rol-ling process by horizontal and vertical displacement. Duringthe roller positioning, high accuracy is essential.Temposonics® position sensors by MTS are reliable, preciseand dynamic in this rugged environment. They are a cost-effective alternative to other measuring systems.
Durable in a rugged Environment
For direct stroke measurement MTS has developedposition sensors which can be integrated into the hydrauliccylinder as well as mounted externally. The pressure-resistantsensor pipe is inserted into the open plunger. The pipe pro-tects the sensing element containing the ferromagnetic wave-guide that carries the measuring signal. A passive positionmagnet moves without contact and wear along the sensor pi-pe and marks the position through the wall of the pipe.
The robust design and the non-contact measuring principlereduce the time for maintenance and downtime. Despite hitsduring the rolling process, Temposonics® sensors are shockand vibration resistant and continue to perform well.
Applications
Rugged Temposonics® sensors measure the position
• of the working roller for hydraulic gap control
• to control the width of the strip
• for lateral support and alignment of the enteringrolling stock
• of the pressure roller at the winder
• for the roller changeover.
Roughing train Finishing train
Coiler
Feedback
Position sensorFinal inspectionstrip thickness
Rollstand with hydraulic gap control at a cold rolling mill
Precise Roller Positioning
Temposonics® position sensors offer accurate measurement signals and minimize system related delays fora precise, dynamic control. This performance is decisive foraccurate roller positioning and roller gap control. The stan-dard resolution for position and velocity is 1 µm and 1 mm/srespectively.
For maximum accuracy the internal linearization increases thestandard linearity. Due to a repeatability of < ± 0.001 % F.S.reference points can exactly be defined, stored and recalled bytargeted positioning of the rollers on top of each other.
Sample Rates up to 10 kHz
Temposonics® R-Series SSI sensors provide highquality, synchronous position measurement suitable for displacement, velocity and acceleration control and enhancethe quality of the finished roller product.
To fulfill high, dynamic requirements, the sampling time forthe measuring value is shortened so the controller can readthe position values out with an update frequency up to 10 kHz- independent of the measuring length.
Cost-saving Alternative
Magnetostrictive Temposonics® position sensors byMTS increasingly replace the widely-used incremental measu-ring systems. Major OEMs engaged in the rolling mill processalready accept them as an attractive alternative. In directcomparison, both transducers show the same accuracy. Butthe sensors by MTS are the more cost-efficient solution dueto a cheaper initial investment and their longer life cycle.
Temposonics® sensors are easy to install. All parameters arepreset according to the order specifications, thereby avoidinga time-consuming on-site calibration. The sensor head con-tains the whole electronics. When maintaining the machinethe electronics head and the sensing element can be dismant-led or installed quickly and separately from the sensor rodjust by loosening two screws.
51,75
51,50
51,25
51,00
50,75
50,50
50,25
50,00
31,750 31,775 31,800 31,025 31,050 31,075
- incremental magnetic scale- Temposonics position sensor®
Comparison of position signals at a resolution of 1 µm
Editorial
Dear Business Partner,
with the MTS magnetostrictive position sensors you can reduce your costs significantly. They are a well-priced invest-ment and operate without any wear for years. Decreasingmagnetisation and limited durability are worries of the past.Temposonics® sensors offer a considerably longer service life than other measuring systems due to their stability and nowear operation.
At the same time they are so precise, that the strip thicknesscan be adjusted to few micrometer. Their accuracy can de-finitely be compared to an incremental measurement system.Numerous equipped applications in rolling mills and extensivetest runs confirm their performance.
Decide today for a position measurement with unbeatable pri-ce-performance ratio. Choose Temposonics® sensors!
With kind regards from Lüdenscheid
Yours Joachim Hellwig(Vice President MTS Sensors)
MTS Sensor TechnologieGmbH & Co. KGAuf dem Schüffel 958513 Lüdenscheid, GermanyTel. + 49-23 51-95 87 0Fax + 49-23 51-5 64 91E-Mail: [email protected]
MTS Systems CorporationSensors Division3001 Sheldon DriveCary, N.C. 27513, USATel. + 1-919-677-0100Fax + 1-919-677-0200E-Mail: [email protected]
MTS Sensors Technology Corp.737 Aihara-cho, Machida-shi, JapanTel. + 81-42-775-3838Fax + 81-42-775-5516E-Mail: [email protected]
Pictures: MTS, Uwe Niggemeier
All Advantages at one Glance
Absolute, non-contact Temposonics® position sen-sors satisfy with a whole range of advantages:
+ easy installation+ no calibration+ sealed against dirt
(no connection for compressed air necessary)+ long life cycle+ non-contact and no wear (no friction)+ maintenance-free + resolution 1 µm+ jitter 1 µm+ absolute measurement: no position loss after
emergency stop or power failure+ vibration resistant+ competitively-priced, without maintenance expenses
High precision roller displacement and accurate control of the strip thicknessenable tight tolerances.