Steckel Mills e - SMS group - Efficient solutions for ...

1 Steckel Mills Steckel Mills Creative solutions for the metal industryHOT ROLLING MILLSSMS metallurgySteckel MillsSMS DEMAG2 SMS Demag AGdraws on a long history as a part-ner of the iron, steel and nonferrous metal indus-tries. It began as early as 1856 when a forerunnercompany built the first rolling mill. Since then, wehave developed into a global-player group . That show decades of know-how and experience havemerged into a performance and innovation strengththat shapes the future, yet builds on corporate has coincided with steady progress in the steel industry and its production processes in recentyears. Next in line were more Efficient and eco-friendly technologies that have replaced traditionalmethods. We played our part in this transformationwith market-molding our group holds a leading position in interna-tional machinery and plant construction for the steeland aluminum industries. We have systematicallyexpanded our product range, so now it covers theentire process chain of metallurgical plant and rollingmill technology from steelmaking plants and contin-uous casters through hot and cold rolling Mills tostrip Technologieswas founded in 1923 as Tippins& Springle, Inc.

2 Initially, the company focused on buy-ing and selling as well as modernizing used , since the early 1960 s, it has specialized inbuilding and revamping Steckel and CoilPlate Mills ,and has made a name for itself in this field Mills Steckel Mills Creative solutions for the metal industry3 Introduction2 Steckel mills4 Twin-stand Steckel mills6 CoilPlate and combined plate/ Steckel mills8 TSP and CSP plants10 Modernization 14 Electrics and automation16 Service18To pool their activities in Steckel and CoilPlate Mills ,SMS Demag and Tippinsfounded SMS DemagTippins LLCin Demag Tippins LLC, headquartered in Pitts-burgh, Pennsylvania, USA, specializes in the supplyand modernization of Steckel Mills for the ferrousand nonferrous industries. You gain a great deal fromthis joint venture. Why? Because it combines thetechnologies of SMS Demag and Tippins to providethe world s best Steckel mill technology. Even more,it boasts the longest reference list of Steckel millsaround the globe.

3 Included in the product range areliterally all steel grades from carbon steels to stain-less steels to super alloys in sizes from medium strip to wide coil an added extra, you receive a valuable key to the success of your project. Typically, SMS DemagTippins applies its creativity to solve complex prob-lems yours too. What you get is an array of solu-tions that meet your technical requirements as wellas your Demag Tippins offers you mechanical equip-ment complete with the latest process automationsystems, electrical controls and fluid systemsdesigned as units that complement each means you can expect plants that produce first-class products at competitive your goal whether improved productquality, enhanced productivity or the capacity tomanufacture higher added value products, the expe-rience and know-how of SMS Demag Tippins arevital to your is what you will gain:Coordinated planning and design of the mechani-cal equipment, the fluid systems, the foundationsand the electrics and automationManufacturing, assembly and tests in our workshopsInstallation, installation monitoring and commis-sioningAll-inclusive project management from the planning phase to final approvalCONTENTSSTECKEL MILLSS teckel MillsSMS DEMAG4 Steckel MILLSThe classic Steckel mill configuration consists of arougher with an attached edger that jointly roll outslabs to transfer bar thicknesses of 25 45 mm.

4 Next,a four-high reversing stand rolls the transfer bar to thedesired finished strip thickness in 5 9 passes. Tokeep the material hot during the rolling process, thestrip is coiled after each pass and transported into oneof the two Steckel furnaces arranged on the entry andexit sides. The heat in the furnaces maintains the striptemperature at a high plant configuration isideal for the cost-effective production of hot strip with an annual capacity of 100,000 1,000,000 noting is that the roughing stand is not neces-sary if medium-thickness slabs are actuators such as hydraulic cylinders for thickness control and CVC plus technology for controlling profile and flatness are used in today sSteckel Mills to achieve product tolerances comparableto those of modern conventional hot strip can see quite a lot of Steckel Mills featuring thiskind of configuration that we successfully built inrecent years for the cost-effective production of stain-less and acid-resistant stainless is also a trend toward utilizing the versatility ofmodern Steckel Mills to roll a very wide range of prod-ucts.

5 Not only stainless steels but also carbon steels,silicon steels, thermo-mechanically rolled tube steelsand high-strength materials. Included here are alu-minum as well as copper strip and special alloys thatyou can easily produce with Steckel Commissioning Annual production (India)1995200,000 t/yearYieh United (Taiwan)1994900,000 t/yearOutokumpu Stainless (Sweden)19921,000,000 t/yearOutokumpu Stainless (Finland)1988800,000* t/yearColumbus Stainless (South Africa)1982150,000 t/yearIPSCO (Canada)1979900,000 t/yearMario Maraldi (Italy)1979500,000 t/yearOregon Steel (USA)1978500,000 t/yearAllegheny Technologies (USA)1977250,000 t/yearMittal Canada (Canada)1967650,000 t/year* After modernization 1,600,000 t/year5 Steckel mill Salem, India. Coiler of Steckel mill Salem, mill stand OutokumpuAvesta, mill AlleghenyTechnologies, MillsSMS DEMAG6 TWIN-STAND Steckel MILLSTWIN-STAND Steckel MILLSTwin-stand technology gives you the capacity to produce high-quality thin-gauge hot strip on Steckelmills at production rates of 1 million t per s because we combined Steckel technology andtandem rolling to create a mill that can economicallyproduce the full range of thin gauge materials all this at production rates suitable for twin-stand Steckel Mills you can produce a widerange of carbon steels and stainless steels in excel-lent qualities but in smaller SMS Demag Tippins Twin-Stand mill is a flexiblesolution you can integrate into your metallurgicalfacility.

6 Use it either to roll slabs from a conventionalcontinuous caster, or connect it directly to an inter-mediate thickness slab caster as part of a TSP (Tippins Strip Process) Commissioning Annual production Steel (Marocco)20081,000,000 t/yearKunming Iron & Steel (China)20021,200,000 t/yearMittal Steel Ostrava (Czech Republic)19991,000,000 t/yearTwin-stand Steckel mill, mill Mittal Steel Ostrava,Czech Steckel millKunming, MillsSMS DEMAG8 COILPLATE PLATE/ Steckel MILLSCOILPLATE and combinedPLATE/ Steckel MILLSCoilPlate millOPERATIONAL MODESWe upgraded the CoilPlate process in recent yearsfrom a simple Steckel process for broad productsinto a combination of conventional plate rolling plusthe advantages of the Steckel process applied CoilPlate mill produces plate in three distinctmodes:Discrete platesIn this mode, the mill rolls smaller slabs into dis-crete plates just like a conventional plate mill.

7 Somemills include the capability to cross-roll in order toproduce plates wider than the casting width of thecontinuous caster. This mode is ideal for rollingthick plates and for thermomechanically controlledrolling of API grades. You can use the SMS DemagTippins CoilPlate plant to manage several thermo-mechanically rolled plates in the plant simultane-ously and fully In this mode, the mill uses jumbo slabs as the starting material. It operates like a plate mill for theinitial flat passes and then as a Steckel mill duringfinish rolling. Cropping and crosscut shears installedon the cooling bed cut the plate into cooling bedlengths, then they are transported to a conventionalplate mill finishing this mode, the mill also uses jumbo slabs. The rolling process is largely identical with the previously described mode. However, after the final pass, the plate is cooled to the required tem-perature in a laminar flow cooling system and then coiled to produce a wide hot band Commissioning Annual production (Canada)1998900,000 t/yearIpsco Steel (USA)19971,200,000 t/yearLPN Plate Mill (Thailand)1996600,000 t/yearOregon Steel (USA)1996900,000 t/yearPT Gunung Raja Paksi (Indonesia)1996500,000 t/yearIndusteel, Arcelor group (Belgium) 1992500,000 t/yearNucor Steel Tuscaloosa (USA)1985750,000 t/yearHighveld Steel & Vanadium (South Africa)1984400,000 t/yearHaynes International (USA)198320,000 t/year9 Ipsco, Oregon Steel, bed Ipsco, Steel, MillsSMS DEMAG10 TSP andCSP PLANTSTSP andCSP PLANTSTSP The Tippins Strip Process (TSP ) is a revolutionarytechnology for producing hot strip on a mini-mill is a patented process that combines a mediumthickness slab caster (thicknesses of 90 150 mm)

8 With a Steckel -type rolling mill to produce a hot stripfacility with modest capital expenditure. So, if you area mini-mill producer, you can adopt this technology to get into the market for flat products (annual produc-tion to million t/year) at low TSP facility consists of four basic components:Steelmaking / ladle refiningContinuous slab castingSlab equalizing/reheatingHot rollingREFERENCESC ustomer Commissioning Annual production Iron & Steel (China)20051,000,000 t/yearMittal Steel Ostrava (Czech Republic)19991,000,000 t/yearIpsco Steel (USA)19971,180,000 t/yearYour benefits from a TSP facility:Easy integration into mini-millsEnergy saving due to high hot charging proportionLow capital cost11 CSP Here is another highly cost-effective plant type for you because it combines the CSP process with theSteckel casters cast thin slabs with thicknesses of 50 70 mm, then cut them to the length you require.

9 CSP , the downstream equalizing furnace heats thethin slabs to the hot-rolling temperature of ,100 thin strips are transported with a very even tem-perature out of the equalizing furnace, through thehigh-pressure descaler and into the Steckel on the annual production level you want,the Steckel mill is built with one stand or two as a twin stand here is its low investment cost and a much lower energy requirement compared to the conventional process. That s why this highly economi-cal plant type is also ideal for integration into mini- Mills . Equally useful, it can be used to extend theproduct range of larger Mills by special steel grades or MillsSMS DEMAG12 CONVERTING PLATE Mills INTOCOILPLATE MILLST here are already several plate Mills that SMS DemagTippins has successfully converted into CoilPlate carried out these conversions with minimal inter-ference in production. Now these Mills can still roll dis-crete plates as before.

10 However, due to the upgradeinto CoilPlate Mills , it was possible to add a wholenew range of products. Now these plants can producecoils, plus they can roll thinner plates. Equally impor-tant here is the increase in production by 40% andmore as well as a better you are wondering where these drasticimprovements come from. Simple: the operators arenow able to produce large coils and longer motherplates. Obviously, using longer slabs also improves furnace hearth plants are excellent for rolling API X gradesutilizing controlled into a CoilPlate plant involves adding twoSteckel furnaces, two pinch roll units, one laminar flowcooling system and one downcoiler to the plate included are the associated electrical, fluid andautomation systems. It is no problem to prepare theinstallation of the new equipment alongside the exist-ing plant, then to integrate it during a regular mainte-nance PROJECTSMODERNIZATION PROJECTSC onverting into CoilPlate millLPN, Steckel furnaces used to keep the plate ends hotduring rolling can be designed stationary or movableout of the is what you gain from conversion into a CoilPlate mill:Higher production rateBetter plate yieldImproved qualityThinner-gauge plates13 OUTOKUMPU Steckel MILL IN FINLANDOne recent, highly unconventional revamp was theupgrade of the Outokumpu Steckel mill in Finland.