Ultra 76 Plus tantalum alloy resists corrosion in hot concentrated acids
July 8, 2015
Source:
H.C. Starck, Newton, Mass., introduces the Ultra 76 Plus tantalum alloy, which is designed to combat aggressive hazardous-chemical corrosion in hot concentrated acids. The alloy is based on the Ta2.5W alloy, which improves corrosion resistance by minimizing hydrogen embrittlement, extending equipment life, and reducing downtime.
Ultra 76 Plus was designed by H.C. Starck's Fabricated Products Division. It enables increased concentrations and operating temperatures in HCI, H2SO4, and other acids. It can add value to a multitude of products, from heat exchangers, condensers, and coils, to thermocouple protection sheaths, pumps, distillation columns, boilers, and condensers.
H.C. Starck's high-tech materials — molybdenum, tungsten, tantalum, niobium, and their alloys — are excellent choices for applications in high temperatures and severe environments. Tantalum, in particular, is widely used in electronics, chemical processes, and biomedical industries, where its alloys provide cost-effective, long service-life solutions for mission-critical components. In addition, it enables users to eliminate separate "Platinum Spot Welding" steps.
www.hcstarck.com
H.C. Starck, Newton, Mass., introduces the Ultra 76 Plus tantalum alloy, which is designed to combat aggressive hazardous-chemical corrosion in hot concentrated acids.
Continue reading
Ajax Tocco PowerForge billet heater integrates entire induction heating system
Source:
Ajax Tocco Magnethermic, Wickliffe, Ohio, recently shipped a 1300 kW PowerForge billet heating system to Bonney Forge Corp., Mt. Union, Pa. The PowerForge design integrates the entire induction heating system, including the water cooling system, onto a common base for a quick, efficient installation that conserves floor space. The system is designed to heat carbon steel billets to forging temperatures.
The system includes a coil shuttle table for automatic changing of the coils and frequency for differing billet sizes. A PLC with touch screen display featuring ForgeView Plus Software is also included. The unit is loaded by a vibratory bowl feeder.
Bonney Forge's decision was based on several factors: Ajax Tocco's total package fit their requirements; service, when required, is expeditious; and PowerForge provides versatility and multi-frequencies, as well as the ability to easily run a wide variety of parts.
Bonney Forge is an industry leader in marketing and manufacturing forged steel fittings and unions, branch connections, forged steel valves, cast steel valves, and specialty products.
Ajax TOCCO Magnethermic, a subsidiary of ParkOhio Holdings Corp., designs and manufactures induction heating and melting equipment for various industries.
www.AjaxTocco.com
Ajax Tocco Magnethermic, Wickliffe, Ohio, recently shipped a 1300 kW PowerForge billet heating system to Bonney Forge Corp., Mt. Union, Pa.
Continue reading
Plansee’s new cold rolling mill produces thin moly sheets up to 1000 mm wide
Source:
Plansee, Austria, recently invested in an ultramodern cold rolling mill to produce thin and medium-thickness molybdenum sheets up to 1000 mm wide, and to ensure increased capacity. Plansee also operates the world's largest hot rolling mill for molybdenum, tungsten, tantalum, and niobium sheets. With a rolling force of 50,000 kilonewtons, this produces sheets up to 2000 mm wide and several meters long.
Whether smooth or etched, for punching or in deep-drawing quality, a wide range of sheets is now available at a reduced price. Plansee also makes rods, wire, and ribbon of molybdenum, tungsten, tantalum, and niobium. These materials withstand high temperatures, have long service lives, and retain their shape even when exposed to frequent changes of temperature. Aside from semi-finished products, Plansee also develops and manufactures custom components from refractory metals.
The Plansee High Performance Materials division has expertise in the field of molybdenum, tungsten, tantalum, niobium, and chromium components. Alloys and composite materials from Plansee are in electronics, coating technology, and high-temperature furnaces, wherever traditional materials are stretched beyond their limits.
www.plansee.com
Plansee, Austria, recently invested in an ultramodern cold rolling mill to produce thin and medium-thickness molybdenum sheets up to 1000 mm wide, and to ensure increased capacity.
Continue reading
Constellium forms partnership to develop 3D printing of aluminum aircraft fuselage
Source:
Constellium N.V., Amsterdam, announces that it has formed a partnership with Stelia Aerospace and CT Ingenierie to optimize large aluminum aerostructures via additive manufacturing. Called Fast, the goal of the project is to make large aerospace structures and parts more efficiently and cost effectively by developing 3D printing on a large scale. In particular, 3D printing of a fuselage has the potential to transform the aerospace industry, allowing for easy design modification, duplication, and customization at a lower cost.
"The goal of the Fast project is to change the way innovative technologies are implemented and to expand the usage of 3D printing. 3D printing will allow us to create metal shapes and properties that were previously impossible to produce," said Bruno Chenal, Director of R&D, Constellium Research and Technology. Fast is a long-term project that was formed last year and currently remains in early stages of development.
Constellium will act as the primary material supplier, while Stelia Aerospace will lead the design and production efforts and CT Ingenierie will optimize the design. 3D printing is already used widely in technology and extrusion manufacturing, but the large scale and the holistic optimization approach make this project unique.
www.constellium.com
Constellium N.V., Amsterdam, announces that it has formed a partnership with Stelia Aerospace and CT Ingenierie to optimize large aluminum aerostructures via additive manufacturing.
Continue reading
Houghton International celebrates 150-year anniversary
July 2, 2015
Source: ASM International
Open House at Valley Forge Headquarters Kicks Off a Year of Worldwide Events
Continue reading
C.I. Hayes installs humpback furnace for annealing stainless steel
July 1, 2015
Source:
C.I. Hayes, a Gasbarre Furnace Group Company, Cranston, R.I., announces the recent installation of a Humpback Conveyor Belt Furnace for bright annealing of stainless steel materials. The furnace operates with hydrogen atmosphere at a low dewpoint (-60°F range), and has a maximum operating temperature of 2100°F.
The C.I. Hayes Humpback is an inclined mesh belt conveyor furnace designed to allow large door openings while providing extremely low furnace dewpoints. This combination assures minimal gas consumption and maximized operational cost savings. The Humpback's name is derived from the appearance of the equipment, with inclined entrance and exit tunnels between which are positioned horizontal heating and cooling sections. Parts up to 24 inches high can be processed without negative effects on the furnace atmosphere integrity.
www.cihayes.com
C.I. Hayes, a Gasbarre Furnace Group Company, Cranston, R.I., announces the recent installation of a Humpback Conveyor Belt Furnace for bright annealing of stainless steel materials.
Continue reading
Missouri S&T developing high-strength TRIP steel for autos
Source:
Missouri University of Science and Technology, Rolla, announces that a third-generation high-strength steel being developed by Missouri S&T metallurgical engineers should be lighter, easier to make, and strong enough to address automotive safety concerns. The technology is based on TRIP – transformation-induced plasticity. It involves the transformation of austenite, which normally exists at high temperatures, into martensite, a harder phase that develops as the steel deforms.
Because of their high fatigue strength and ability to absorb high amounts of energy, TRIP steels are well suited for automotive structures and safety components such as cross members, longitudinal beams, B-pillar reinforcements, and bumper reinforcements.
"We are currently refining the steel design to achieve ‘Gen 3' mechanical property goals while also maintaining manufacturability," says center director Dr. Ronald J. O'Malley, the F. Kenneth Iverson Endowed Chair of Steelmaking Technologies at Missouri S&T. "The alloy design is based on a two-stage or ‘dual TRIP' mechanism that leads to extreme work hardening and energy absorption, so it's very good for automotive crash-worthiness."
Under the direction of Dr. David C. Van Aken, Curators' Teaching Professor of metallurgical engineering, the Missouri S&T team has used an atomic modeling method known as "density functional theory" to identify alloying elements to create the dual TRIP character of these new steels.
The real challenge, however, lies with the large-scale production of these new steels. With the help of industrial partners, the researchers at Peaslee Steel Manufacturing Research Center are examining all aspects of the steel manufacturing – "from melt practice to final formability by the automotive producer," Prof. O'Malley says. A committee of representatives from four steel manufacturers – Nucor, U.S. Steel, AK Steel and ArcelorMittal – oversees the project.
One benefit of conducting the research at Missouri S&T is the ability of researchers to create and test small batches of steel. In S&T's labs, researchers can create 200 pounds of steel at a time, whereas big steel manufacturers like Nucor, where Prof. O'Malley was chief metallurgist before joining S&T, would have to make 170 tons of steel for testing.
www.mst.edu
Missouri University of Science and Technology, Rolla, announces that a third-generation high-strength steel being developed by Missouri S&T metallurgical engineers should be lighter and easier to make, while being strong enough to address automotive safety concerns.
Continue reading
TimkenSteel opens SBQ steel development tech center
Source:
TimkenSteel, Canton, Ohio, recently opened a $5 million technology center for developing clean special bar quality (SBQ) steel and new steel grades. The TimkenSteel Technology Center features a dozen laboratories, including a new scanning electron microscope, an ultrasonic lab, a physical process modeling lab, and additional labs where metallurgists and materials scientists can test steel and find inclusions less than the width of a human hair.
Steel cleanliness is important for high performance in critical products such as gears, bearings, axles, crankshafts, downhole drilling equipment, and military applications. The 20,000-square-foot facility, in combination with the company's steelmaking capabilities, allows TimkenSteel to integrate learning and knowledge and achieve high levels of steel performance from the company's new $200 million jumbo bloom vertical caster at the Faircrest Steel Plant in Canton.
"TimkenSteel is the global leader in clean steels because we understand the science and measurement of inclusions better than anyone, and we're the only steelmaker that can take that understanding and use it to predict component life," said Ray Fryan, vice president of technology and quality at TimkenSteel. "The new TimkenSteel Technology Center, along with the talent across our entire team, enhances our ability to develop the SBQ steel that our customers need to solve their toughest challenges."
www.timkensteel.com
TimkenSteel, Canton, Ohio, recently opened a $5 million technology center for developing clean special bar quality (SBQ) steel and new steel grades.
Continue reading
Sandvik chromium-nickel steel extends pulverized coal injection lance life
Source:
Sandvik Materials Technology, Sweden, reports that its Sandvik 253 MA tubing has extended the service life of pulverized coal injection (PCI) lance tubes to a year at a Chinese iron and steel plant. Previous tube materials lasted as little as one month. Sandvik 253 MA is an austenitic chromium-nickel steel that is designed for good high temperature strength and excellent resistance to high-temperature oxidation and carburization corrosion.
"Sandvik 253 MA has higher creep rupture strength, abrasion resistance, and corrosion resistance at higher temperatures. The grade has improved high-temperature strength and structural stability to give added safety benefits," said David Zhou, Technical Marketing Specialist, Sandvik.
Whereas standard grades last between one and two months, or for as little as two-to-three weeks with standard AISI 304L, Sandvik 253 MA can increase PCI lance tube life by more than three times. It has been widely used abroad to replace familiar PCI lance tubes manufactured from conventional materials such as 310S, TP 321H and 316L. The increased cost can be quickly offset by the extended lifecycles and reduced maintenance costs.
The Sandvik material exhibits high oxide scale density and strong adhesion due in part to its extra 0.05% cerium (Ce) content. In combination with added 1.5% silicon (Si), this gives the grade excellent high-temperature oxidation resistance and high temperature carburization resistance properties. Added 0.17% nitrogen (N) improves high temperature creep rupture strength over standard grades like AISI 310.
www.smt.sandvik.com
Sandvik Materials Technology, Sweden, reports that its Sandvik 253 MA tubing has extended the service life of pulverized coal injection (PCI) lance tubes to a year at a Chinese iron and steel plant.
Continue reading
SecoWarwick to deliver equipment for recycling aerospace titanium in Europe
June 24, 2015
Source:
Seco-Warwick Europe, Poland, together with Retech Systems, Ukiah, Calif., have signed a contract for delivery of a comprehensive melt-shop equipment package to a new European facility for recycling aviation-grade titanium. EcoTitanium, launched in France in April, will provide the aerospace industry with a new titanium supply channel, independent of American and Russian sources.
The equipment package includes three metallurgical units: one plasma arc melting (PAM) furnace, two vacuum arc remelting (VAR) furnaces, and associated equipment. Plasma melting systems have the proven commercial ability to consistently produce titanium alloy ingots and castings more efficiently than competing technologies. This is primarily because plasma melting systems operate under an inert gas atmosphere, which allows the alloy composition of the metal to be maintained easily with minimal evaporative losses, as opposed to other processes that operate in a vacuum.
The Retech PAM system fully integrates simple, robust mechanisms with proven melting systems and control techniques. The feed system consists of a proven rotary can feeder and vibratory chute combination that delivers turnings to the melt hearth. Also included is a bar feeder for feeding titanium scrap.
Once in the melt hearth, the material is thoroughly melted by Retech's robust transferred-arc plasma torch. Material continues on to a series of refining hearths where both high-density and low-density inclusions are removed under the action of the plasma torches and the residence time provided by the refining hearths.
An ingot is formed within the water-cooled copper mold, on top of a matching water-cooled copper puller. As the puller withdraws out the bottom of the mold, the titanium alloy solidifies as new liquid continues to flow into the top of the mold. The system will be able to produce large ingots that will be then used as electrodes for the VAR system.
Two vacuum arc remelting furnaces Retech, each equipped with two melt stations, are designed to melt and refine titanium and titanium alloy final ingots. These ingots will be produced from fully dense electrodes produced by Retech's Plasma Cold Hearth Melting process. New ingots will be formed in copper crucibles by melting the consumable electrode under vacuum conditions by the electric arc.
www.secowarwick.com
Seco-Warwick Europe, Poland, together with Retech Systems, Ukiah, Calif., have signed a contract for delivery of a comprehensive melt-shop equipment package to a new European facility for recycling aviation-grade titanium.
Continue reading 