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Warwick Group to supply furnaces to titanium recycling plant
dissolve in solvents like benzene or toluene. The dysprosium complexes do not dissolve, enabling the two metals to be easily separated. Once apart, an acid bath can strip the ligand off both metals, enabling it to be recycled as well. ‘If you have the right ligand, you can do this separation in five minutes, whereas the liquid-liquid extraction method takes
weeks,’ Schelter said. ‘A potential magnet recycler probably doesn’t have the capital to invest in an entire liquid-liquid separations plant, so having a chemical technology that can instantaneously separate these elements enables smaller scale recyclers to get value out of their materials.’ Future work will involve improving the stability of the ligand so it is less
PRODUCT SHOWCASE
likely to fall off before the metals are separated. Further modification of the ligand could enable other rare earths in technology products, such as compact fluorescent light bulbs, to be recycled this way. The research was published in Angewandte Chemie, International Edition. University of Pennsylvania; www.upenn.edu
SECO/Warwick Group to supply furnaces to titanium recycling plant SECO/Warwick Europe and Retech Systems (USA) have signed a contract to deliver a comprehensive melt shop equipment package to a new European facility for recycling of aviation-grade titanium. The EcoTitanium unit, launched in December 2014, aims to build and operate Europe’s first recycling plant for aviation grade titanium. The plan is to provide the aerospace industry with a new supply channel, independent of American and Russian sources, giving it better control over its sourcing of titanium. The full delivery will be comprised of three metallurgical units: one plasma arc melting furnace (PAM), two vacuum arc remelting furnaces (VAR), and accompanying equipment. According to the company, plasma melting systems can consistently produce titanium alloy ingots and castings more efficiently than other competing technologies. This is primarily due to the fact that the systems operate under an inert gas atmosphere which allows the alloy composition of the metal to be maintained easily with minimal evaporative losses,
The companies will deliver a comprehensive melt shop equipment package to a new European facility for recycling of aviation-grade titanium.
as opposed to other processes which operate in a vacuum.
Furnace system The Retech PAM system integrates mechanisms with melting systems and control techniques. The feed system consists of a rotary can feeder and vibratory chute combination that deliver turnings to the melt
hearth. Also included is a bar feeder for feeding titanium scrap. Once in the melt hearth the material is melted by Retech’s transferred-arc plasma torch. Material continues on to a series of refining hearths where both high 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 which will be then used as electrodes for VAR system. The two vacuum arc remelting furnaces are equipped with two melt stations and 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 crucible by melting of the consumable electrode under the vacuum conditions by the means of the electric arc. SECO/Warwick; www.secowarwick.com
Sinterite installs humpback brazing furnace Sinterite, a Gasbarre Furnace Group Company, has recently installed a 12-zone Continuous Belt Humpback Brazing Furnace, the third furnace supplied to the customer by Gasbarre Furnace Group in the past three years. This newest furnace is a humpback muffle-channel heating chamber design that includes a Sinterite HyperCooler rapid cooling system and 100% hydrogen atmosphere
system. The furnace is utilized for continuous copper brazing of stainless steel materials, and the rapid cooling capability of the HyperCooler provides for desensitization and control of copper braze flow arresting in the 304 stainless steel component assemblies. The furnace is equipped with a 24 inch mesh belt conveyor system, one-zone inclined entrance section, four-zone
two chamber heating section (21008F/ 11498C capability), seven-zone exit cooling system, multiple zone atmosphere control system and HMI control system. In addition, the project included installation of a second HyperCooler system, retrofitted to an existing furnace, also to reduce sensitization of brazed 304 stainless steel. Sinterite; www.sinterite.com
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PRODUCT SHOWCASE
Metal Powder Report Volume 70, Number 5 September/October 2015
weeks,’ Schelter said. ‘A potential magnet recycler probably doesn’t have the capital to invest in an entire liquid-liquid separations plant, so having a chemical technology that can instantaneously separate these elements enables smaller scale recyclers to get value out of their materials.’ Future work will involve improving the stability of the ligand so it is less
PRODUCT SHOWCASE
likely to fall off before the metals are separated. Further modification of the ligand could enable other rare earths in technology products, such as compact fluorescent light bulbs, to be recycled this way. The research was published in Angewandte Chemie, International Edition. University of Pennsylvania; www.upenn.edu
SECO/Warwick Group to supply furnaces to titanium recycling plant SECO/Warwick Europe and Retech Systems (USA) have signed a contract to deliver a comprehensive melt shop equipment package to a new European facility for recycling of aviation-grade titanium. The EcoTitanium unit, launched in December 2014, aims to build and operate Europe’s first recycling plant for aviation grade titanium. The plan is to provide the aerospace industry with a new supply channel, independent of American and Russian sources, giving it better control over its sourcing of titanium. The full delivery will be comprised of three metallurgical units: one plasma arc melting furnace (PAM), two vacuum arc remelting furnaces (VAR), and accompanying equipment. According to the company, plasma melting systems can consistently produce titanium alloy ingots and castings more efficiently than other competing technologies. This is primarily due to the fact that the systems operate under an inert gas atmosphere which allows the alloy composition of the metal to be maintained easily with minimal evaporative losses,
The companies will deliver a comprehensive melt shop equipment package to a new European facility for recycling of aviation-grade titanium.
as opposed to other processes which operate in a vacuum.
Furnace system The Retech PAM system integrates mechanisms with melting systems and control techniques. The feed system consists of a rotary can feeder and vibratory chute combination that deliver turnings to the melt
hearth. Also included is a bar feeder for feeding titanium scrap. Once in the melt hearth the material is melted by Retech’s transferred-arc plasma torch. Material continues on to a series of refining hearths where both high 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 which will be then used as electrodes for VAR system. The two vacuum arc remelting furnaces are equipped with two melt stations and 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 crucible by melting of the consumable electrode under the vacuum conditions by the means of the electric arc. SECO/Warwick; www.secowarwick.com
Sinterite installs humpback brazing furnace Sinterite, a Gasbarre Furnace Group Company, has recently installed a 12-zone Continuous Belt Humpback Brazing Furnace, the third furnace supplied to the customer by Gasbarre Furnace Group in the past three years. This newest furnace is a humpback muffle-channel heating chamber design that includes a Sinterite HyperCooler rapid cooling system and 100% hydrogen atmosphere
system. The furnace is utilized for continuous copper brazing of stainless steel materials, and the rapid cooling capability of the HyperCooler provides for desensitization and control of copper braze flow arresting in the 304 stainless steel component assemblies. The furnace is equipped with a 24 inch mesh belt conveyor system, one-zone inclined entrance section, four-zone
two chamber heating section (21008F/ 11498C capability), seven-zone exit cooling system, multiple zone atmosphere control system and HMI control system. In addition, the project included installation of a second HyperCooler system, retrofitted to an existing furnace, also to reduce sensitization of brazed 304 stainless steel. Sinterite; www.sinterite.com
263
PRODUCT SHOWCASE
Metal Powder Report Volume 70, Number 5 September/October 2015