Document 2j687ZQDkaBD1RJBr4yNm02NR

for Steel Making Maximum life between relines Low refractory cost per ton of steel Products tailored to every service need Superior wear resistance t higher-cost refractories can cost less...in the long run ( More expensive energy sources... ever-rising hourly rates for masons... skyrocketing steel-making equipment costs... the need to increase productivity... These factors combine to greatly increase your per-ton cost of making and processing steel. Suddenly, refractories that promise greater life expectancy are economically more attractive ... even when they cost slightly more. With refractories that stretch out the time between major rebuilds, you increase productive on-stream time. With refractories that stand up against the physical and metal lurgical punishment of new steel-making processes, you greatly reduce the costly non-productive periods required for patching. NARCO Refractories can be supplied promptly to handle any process in your steel plant. Basic or acid. Blast furnace to continuous caster. Electric furnace to AOD vessel. no refractories for electric furnaces In the NARCO line, there are refractories for basic and acid practices in electric furnaces used for making steel. We have developed refractories that have higher resistance to the destructive effects of basic practice. And we have developed refractories to give longer life in today's ultra-high powered electric furnaces. Properties include better strength at higher temperatures, superior resistance to impact and abrasion, thermal-shock endurance, and low porosity and permeability. Together these properties can keep your electrics on-stream longer between repairs and relining, increase your yearly tonnage... improve your operating ratios, and profitability. Differences in zone-by-zone refractory service require ments call for a variety of refractories to work together in meeting all the conditions. We can supply the . most suitable refractory for each area. ROOF Narcal 70D Narcal 85B Ramal 85 Narcotab SIDEWALLS Narmag 608C Narmag 600BC Narmag 600BRC SLAGLINE Narmag B Narmag 608 Nartar Pad WO-808 HEARTH all-brick Nartar Pad SUBHEARTH Narmag 90B Narmag B refractories for A.O.D. vessels In argon-oxygen-decarburization reactors, unique factors cause unusual refractory wear problems. These factors are: thermal shock from temperature variations, oxidation reduction reactions caused by partial oxygen pressures during argon blowing, slag contamination at the hot face, high turbulence during gas injection, low-basicity slags. Plus some unique operating variables inherent in the A.O.D. process. Obviously, the special conditions in the A.O.D. vessel call for special refractories to meet these conditions. A number of NARCO Refractories have been created to deliver maximum refractory life in A.O.D.'s and keep your refractory cost per ton of steel low. CONE Naimag 60DB WORKING LINING Narmag 608 TUYERE ZONE Narmag 608 Rebonded Fused Grain BOTTOM Narmag 608 SAFETY LINING Narmag 30B Narmag 608 SEALS Narcal 90P (plastic) ( NARCO low-porosity 60% MgO direct bonded brick (NARMAG 608) with an accessory phase of dicalcium silicate has proved highly satisfactory for use in most areas of A.O.D.'s operating in this country. Rebonded fused-grain brick may be required above the tuyeres to balance wear. NARMAG 608 has shown excellent performance in withstanding the stirring action during gas injection, gas-bubble cavitation, variations in chemistry caused by oxygen pressure variations, temper ature fluctuations, and slag/metal chemistry reactions. There are ideal NARCO refractories for each zone... vessel liners, hoods, tuyere area, and safety linings. Ask us for recommendations that have been proved in service in nearly all the A.O.D. shops around the country. c refractories for BOF's NARCO has developed a complete family of refractories to meet the special needs and tougher environment of the BOF. We have also accelerated our productjpn and delivery of these special refractories to make the most of the shorter downtime periods required for relining a BOF. Our production schedules and local warehousing for all NARCO refractories for BOF's can provide all your needs promptly. CONE Nartar BT Super Nartar AT Super Nartar AT-M BARREL Super Nartar AT Super Nartar AT-M Nartar Pad Nartar 7 CHARGE PAD Nartar Pad Nartar 7 BOTTOM Nartar BT Super Nartar AT Super Nartar AT-M SAFETY LINING Narmag 90B Narmag B Nartar Pad Brick dimensional uniformity is quite critical in the life expectancy and endurance of a BOF lining. NARCO shapes are true to size and free from warped surfaces to simplify lay up and deliver maximum service on extended BOF schedules. For the newer Q-BOP furnaces, we have adapted certain NARCO refractories originally compounded for BOF's. Presently NARCO refractory materials are used in all Q-BOP's in North America. The performance and cost of refractory/ton of steel,of NARCO materials for the BOF's and Q-BOP's are highly satisfactory both technically and costwise to steel makers throughout the Western hemisphere. n,,. Two major applications for NARCO refractories in con tinuous casters are the ladle and the tundish. NARCO refractories with special characteristics have been developed for the tundish applications. These refracto ries are compounded to have high resistance to: impact wear from the ladle outflow, slagging, gassing, and the chemical/ metallurgical effects of special continuous-caster-grade alloys. Ladle linings used with continuous casters are laid up with NARCO high-alumina, expanding-type ladle brick. These bricks have greater resistance to higher tapping temperatures and extended holding times common in this type of service. Their expansion characteristics provide tighter joints and greater freedom from rat-holing. other applications in steel making There are job-proved NARCO Refractories for every spot in the steel plant. In addition to the ones already discussed, NARCO Refractories are used in hot-metal cars, and other places where minimum downtime, maximum time between scheduled repairs, and low refractory cost to steel tonnage are important. Ladle slide gates and nozzles in chemistries to withstand any combination of chemical attack, erosion, and physical opening and shutting of the gates are supplied by NARCO. We can provide shapes and sizes to work perfectly with any ladle gating system. Call your NARCO man, or write us for technical advice, specification help, and refractory data. refractories for blast furnaces Demands for greater blast furnace availability and a decision by many steel makers to eliminate stand-by furnace capacity have greatly increased the importance of topquality refractories that will stay on the job longer. NARCO researchers have developed improved grades of refractories to meet your demands. To help your masons lay tighter bottoms and walls, we can supply NARCO brick of all grades true to size and free from warpage. STOCKLINE Mohawk BF Farber BF Narcal 606 UPPER INWALL Farber BF Mohawk BF LOWER INWALL Farber BF Mohawk BF Narcal 606 Narcal 6061 BOSH Mohawk BF Narcal 606 Narcal 6061 BOTTOM Mohawk Farber BF GUN REPAIRS Narco Blast Furnace Castable Our NARCO line contains a full range of refractories to operate longer, minimize wear in all blast furnace zones under greatly extended operation peri ods, and reduce your refractory cost per ton of steel. These refrac tories have higher resistance to CO disintegration, thermal shock, alkali at tack, impact and abrasion, and slag attack. The NARCO line includes brick shapes, castables, gun mixes, and a variety of mortars. Stoves are also an application where NARCO refractories have an enviable record of life, low cost, and maximum operating service time, top temperatures approaching 2800F. We also supply special silica brick for the new European-type stoves. ^O o ) open hearth and Narco Refractories Stepped-up demand for steel has also stepped up the service requirements for refractories in existing open hearths. And has placed a large premium on longer time between open hearth relining. NARCO Refractories for open hearths can be supplied in a number of chemistries to give extended life in the bottom, along the slag line and in the roof where gases and highimpingement flames corrode and erode the lining. There are NARCO brick and shapes to expedite relining any type, size, and shape of open hearth. Close control of dimensions assures that NARCO refractories can be laid up at top economic speed. And that the refractories will stay firmly in place for many more heats between shut-downs. Narmag 600BC Narmag 60DBRC SUBHEARTH Narmag 90B Narmag B NORTH AMERICAN REFRACTORIES CO. National City/East Sixth Bldg. Cleveland, Ohio 44114 Phone: 216/621-5200 an Eltra company nn xjt .? >-, -wK > r; ........... -;'v; rV*v:'v" - yfv '; ''w'.r. pperatijqDbieH^sptJBnoqernioundries ue^oIpcusfeqipiStitabjlity^fldjqSalitv'i ssman6^^GQinIm^egt^eS^lopgiiew (efractoriesfenHimprowElim^teste'diDnesto xiIiHLLtlimjji* un^rmnfc*. osefcontactiS^thypisnciiVfneJtTOomsuper -- isorSIetftiARGQ * '* * - - ceep5breast|Bf/Di5ridrj^rogfess]|^two^r^as: hi^ndii|ti^B^td5rsb^Tt$indppgraded ;qwpmenwnB|t^)Hiqaesjinlndiv]dJal ^ oundries^T ~ thine - r'-` ^.v:^-VT -t--. . .V ,-flr 236 Refractories for Electric Furnaces Induction and direct-arc electric fumactflinings must resist the mechanical impact of scrap charging, torsions set up in tilting, arcing, as well as chemJcal attack by metal and slag constituents. Melting temperatures can be especially high and spotty. These hot spots increase localized wear and need for repair. O For all types and capacities of electric furnaces, there's a family of MARCO Refractories that will improve productivity, reduce downtime and cut annual refractory costs. Direct Arc Furnaces Roofs MARCAL 606 MARCAL 70D Sidewalls MTU-R (Silica) MARCAL 606 (High Alumina) MARCAL 70D (High Alumina) Basic: MARMAG 608 (Direct Bonded) MARMAG 60DBR (Direct Bonded) MARMAG 60P (Phos Bonded) CARMAG (Carbon Magnesite) Induction Furnaces Working Linings MARCAL 85B RAMAL 85 RAMAL90 Back up Linings MARCAL 85B MARCAL 70D MARCAL 606 Spouts S Patching MARCAL 90P MARCAL 90TP MARCAL85P MARCAL85TP 237 Refractories for Aluminum Furnaces NARCO brick, castable, and plastic refractories have excellent service and performance records in the melting furnaces of many aluminum foundries, both jobbing and captive. NARCO bricks are especially recommended for their outstanding life under these conditions: Mechanical abuse during charging and skimming, Aggressive fluxes. Reactive alloys and additives, Inter mittent furnace operation. They especially show excellent life and economy in the sidewalls and hearths exposed to molten aluminum. NARCO plastic and castable materials have the rugged properties needed for upper walls and roofs. Their service life, of course, is based on the care used in installation so that a tight and leak proof lining is obtained. Positive anchorage is also a must Combinations of NARCO brick, castable, and plastic refractories are operating with high success in many types of aluminum melting furnaces under varying operating conditions. Recommended NARCO Refractories: Lower Sidewalls & Hearth Upper Walls Roofs NARCAL 85B and 85C brick for metal contact areas. NARCAL 85P Plastic and RAMAL 85 Ramming Mix in metal contact areas under certain specific conditions. NARCO 68 Super Duty Firebrick. NARCO 68 brick and suspended tile. SHCJR-RAM NARCOCAST 30 Plastic Firebrick. or NARCOCAST 30 NARCOCAST 60 NARCOCAST 60 Castable. Customized recommendations and drawings will be supplied on reque 236 Refractories for Cupolas Cupolas impose some of the most severe conditions on refractories of any equipment in the foundry. The refractory has to withstand a combination of abrasion, heat, thermal shock, acid or basic slag chemistries and mechanical stress. Added to these are: high-velocity air-blast, spotty air impingement caused by channeling because of non-uniform density of the charge, and variations in tuyere design. No one refractory can be the answer to all these punishing variables in day-to-day foundry operations and materials. NARCO can provide a complete range of refractories developed and proved to work best at each trouble spot. Taphole RAMAK RAMAKP RAMAL 85G Trough Area RAMAK RAMAL 80G RAMAL 85G Well & Bottom RAMAKP NARCAL 60PG NARCOLINE Charge Area GUNCRETE 230 ... for Ladles and Forehearths Transfer and innoculating ladles are readily lined with NARCO Refractories brick ramming mixes, plastics and castables. These have been developed to give maximum resistance to fluid erosion, chemical attack and thermal shock. Users report longer in-service life and less repair downtime. Brick NARCAL 606 NARCAL 70D NARTAR PAD Plastic NARCOLINE SHUR-RAM NARCAL 60PG NARCAL 70P NARPHOS 70P Ramming Mix BERLITE CAROLINE FIRELINE Castable NARCOCAST 30 NARCOCAST 60 ... for Anti-Pollution Systems High temperature entry areas on dust collectors and fume-removal systems are protected from heat, corrosives and highvelocity dust-laden air impingement by NARCO refractory linings. The wide variety of available forms of refractories that can be brick-layed, cast, or gunned permits their use in all types of hot-spot anti-pollution systems and equipment. Call on NARCO for refractory rec ommendations, as well as for solutions to unusual refractory problems, equipment operations, and slag chemistries. Ask your regional NARCO sales technician. Or write or phone us. NORTH AMERICAN REFRACTORIES CO. Hanna Building Cleveland, Ohio 44115 Phone: 216/621-5200 Eltraan company 240 l 24i Reduce kiln operating costs and downtime with the NARCO Family of refractories The Portland Cement Industry is currently facing a period of rapid tech nological change. Energy is scarce. And expensive. At the same time, there is ever-increasing emphasis by build ers and governments on more predic table, repeatable performance by the cement in producing uniform topgrade concrete. Higher rates for skilled masons make rebricking even more costly. The ratio between refractory cost and labor rates now makes it wise to buy better refrac tories with longer life expectancy, thus reducing labor costs by reducing the number of kiln outages. You are struggling with an unusual combination of operating circum stances . . . keep production up . . . hold maintenance costs down . . . use energy more efficiently . . . reduce un productive downtime ... makje a profit . . . maintain cement quality and uniformity. A refractory for every need The NARCO line of cement kiln re fractories was designed to meet the specific thermal, chemical, and me chanical requirements for prolonged service life in each zone of your kiln. We offer one of the most complete lines of refractories available to the Portland cement industry. NARCO refractory researchers are not resting on their achievements. New combinations of refractory materials are being developed in a continuing s program to keep NARCO number one y in quality. Let our kiln refractory engineers help you select the most suitable NARCO products for your particular kiln, fuel, operating procedures, raw materials, and end products. We can help you keep your kiln running longer between refractory-related outages. 0, 21Z c oc2 oV) V) Q) <u Ok. oc0. >c., o8<c ok <oooocc SzEO >- Z20 EOuzumzuazr2i h- h" DC O <I CO z Li. LU O DC > OC --1 I- I- vj UJ UJ DC 5 LU UJ 2 CO LL o ! 2 BtoE -< 3o _ | | W 25 re*z j m ~O*2"s-3oCg*s =tJc-esoocoe?> c coV) o -ar *c= * f2l= 1 =iljg n gs'SS 2 e 5 ^l^iS ococoo --Ld>; "-oi5a.>&^*ss3"22-j!-iio0r?2sa=> >O|>--S5eS|1=-f2g52=ofi=Sx3C=ecgIlg C E .E ^Efgai.'~uSuu oouSOO-<wZ"c 3Ew`3Sveo^z-i2pzao;EuJcp`iCQrDC;a*s.D5rtoot"-SJPE*U"?RSJ^oocjes^f:rt";5..C8* ^g. * I M C n h g O r> 3 (A CO a> a> 2. _ _ w U u u s mt NEW REFRACTORY FROM NARCO... NARMAG 608K-C delivers longer life in the burning zone. This patented refractory was developed by NARCO research to meet the requirements of Portland cement producers for a basic liner that will provide substantially longer burning zone life. NARMAG 608K-C refractory is 20% less porous than most directbond brick. Its unique combination of properties includes chemical compatability with the kiln feed, produces faster clinker coating for mation, improves fuel utilization. This makes the clinker coating more stable; combined with the fact that in most cases, the clinker coating can be removed from the liner with minimum damage to the surface of NARMAG 608K-C refractory. NARMAG 608K-C's 20% lower porosity reduces penetration of the refractory pores by alkalies and sulfides. It also holds thermal dimensional changes to a minimum, resulting in less change in re fractory microstructure at elevated process temperatures. (The tend ency of this product to spall during outages is also less than with other basic brick.) Chemical compatibility of NARMAG 608K-C with the feed in the burning zone is excellent. This prevents the development of an overly dense structure in the refractory hot face that can cause undesirable spalling during outages. Higher strengths at refractory operating temperatures greatly improve the structural stability of the refractory at maximum kiln zone temperatures. It also improves the resistance of the refractory to mechanical torsional stresses set up in kilrrand liner during rotation. For complete information, analysis, and lining recommendations on our newest NARMAG 608K-C refractory in all standard shapes, call your NARCO sales/service representative. 2U ( OUR SERVICE EQUALS OUR LINE . . . IT'S COMPLETE! Technical Services: When you need recommendations or answers, the NARCO Technical Services staff will provide them promptly, using the latest de velopments in refractory technology and the newest improvements in the state of the art as their bases. If yours is an unique problem, NARCO refractories re search will provide unique answers... or even develop a special refractory to meet your need. Quality Control Lab: Uniform adher ence to chemical and physical specifi cations is carefully maintained by regular, statistically-determined pro duction-line tests of all NARCO refractory materials in our own Quality Control Laboratories. NARCO also runs tests under conditions that parallel your own operating environments. Field Service Staff: In the actual instal lation of refractory materials in com mercial kilns, the NARCO Field Installation staff can install NARCO monolithic specialty refractories to supplement your own lay-up crews or masonry contractors in getting the job done quickly and properly. Our staff can also provide supervisory assist ance for your crews when unusual lay up is required or new materials are being installed. Engineering: Engineering assistance and lay-up drawings for all parts of your kiln and its auxiliaries are avail able when you require them. If you don't find what you need in this catalog, phone us. NORTH AMERICAN REFRACTORIES CO. National City/East Sixth Bldg. Cleveland, Ohio 44114 Phone: 216/621-5200 an Eltra company