One Minute Mentor: High-Performance Line

The continuous heat treatment of tool steel is applied to low- or medium-alloyed carbon steel strips as well as martensitic stainless steels. The described lines produce high-quality strip with respect to uniform structure, flatness, and bright surface finish. High quenching rates are necessary, especially for plain carbon steels. Cooling gradients of up to 600 K/s are possible in a molten lead-bismuth quench. Because two-stage quenching technology provides considerable advantages over quenching in oil, this method has been adopted worldwide. It is also possible to achieve isothermal transformation to bainite and pearlite using a molten metal quench, so this type of hardening and tempering line is extremely versatile.

The configuration of a high-performance line involves an entry and exit section of the strip handling equipment. The hardening section consists of the austenitizing furnace, the molten metal quench or hydrogen quench, and a martensite cooler.

For more information, click on the link below (subscription required). Then scroll to Figure 10. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014 

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Quintus cold isostatic press delivered to China’s Lingchuang Special Material Co

Qunitus, Västerås, Sweden, delivered a supersized Cold Isostatic Press (CIP) to China’s Henan Lingchuang Special Material Co. to raise the bar for domestically produced high-quality Isostatic Graphite. 

With its sights set on securing a place as market leader in both product quality and production efficiency, Lingchuang will install a Quintus press model QIC 2.4 x 4.5 – 2000 to maximize operation and output capabilities. The press itself is setting new standards, with its world’slargest vessel dimension—2400 mm x 4500 mm (7.87’ x 14.7’)—along with a new energy management system that offers energy savings of more than 30 percent compared to conventional intensifier solutions.

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Solar Atmospheres adds Boeing approval

Solar Atmospheres, Souderton, PA, has announced the addition of Boeing BAC-5613 approval for the processing of titanium for Boeing aircraft. With this approval, all five Solar Atmospheres facilities are approved to process Boeing end-use titanium components requiring vacuum heat treatment.

Mike Moyer, vice president of sales for Solar Atmospheres of Eastern Pa facility said that “We are proud to announce this addition to our scope of approvals for Boeing. Solar has unique expertise and capabilities in the realm of processing titanium, and we are happy to gain Boeing’s confidence in that regard. This new approval opens the door for Solar Atmospheres to better serve Boeing’s suppliers in the Mid-Atlantic region of the US, as well as provide overflow capacity for other Solar facilities nationwide.”

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Wisconsin Oven ships electrically heated horizontal quench system

Wisconsin Oven, East Troy, announced the shipment of an Electrically Heated Horizontal Quench System to a manufacturer of products for the automotive industry. This system will be used for the solution treatment of aluminum.

The maximum temperature for this horizontal quench furnace is 1200°F and interior chamber dimensions of 2′ wide x 2′ high x 2′ long. The system has the capacity to heat 450 pounds of aluminum parts and the steel basket within 60 minutes. Temperature uniformity of +/- 10°F at set points 850°F and 1050° F was verified with a nine point profile test prior to shipment.

This horizontal quench system provides a 15 second quench delay from when the door begins to open until the load is fully submerged in the tank. The quench is manual, where the operator pulls the load out of the oven and onto the quench elevator using a hook. The quench delay time is recorded and enforced using sensors to detect the start and end of the quench operation, and to stop the process if the quench delay time expires.

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Seco/Warwick furnace to process Jet Engine components

Seco/Warwick, Meadville, PA, has developed a system to perform clean brazing processes in high vacuum as efficiently as possible, ensuring the highest protection of the treated part surfaces. The solution will be used to process jet engine components.

The German Partner carries out comprehensive repairs of technologically advanced jet engines. The company also has a research center which develops innovative repair techniques for various types of components and entire engines. The group employs several thousand qualified employees in various locations around the world and is a leader among companies repairing and providing full service MRO for jet engines. The purchase of a vertical vacuum furnace will improve production processes and significantly increase the commercial heat treater’s efficiency.

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Medical implant hardening in a SECO/WARWICK furnace

SECO/WARWICK, Meadville, PA, announced that they will supply a Vector vacuum furnace to the Marle Group, a global manufacturer of orthopedic prostheses. The furnace on order will be used for the heat treatment of cobalt implants. Cobalt alloy hardening requires very high temperatures, and the heating process for these materials require a high puriity environment, temperature uniformity and very fast and effective cooling.

In order for cobalt alloys to be used in implantology, they must be deprived of their ferromagnetic properties. This shiny, hard metal loses this property only when it reaches a temperature higher than 1131°C. Such a high temperature makes it necessary to use a vacuum furnace in the implant production process. The furnace can not only provide such a temperature, but also guarantees its maintenance over a longer period of time. As a comparison, the temperature, above which a ferSECO/WARWICK, Meadville, PA, announced that they will supply a Vector vacuum furnace to the Marle Group, a global manufacturer of orthopedic prostheses. The furnace on order will be used for the heat treatment of cobalt implants. Cobalt alloy hardening requires very high temperatures, and the heating process for these materials require a high puriity environment, temperature uniformity and very fast and effective cooling.


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Spray Tips: Motion Control

Motion control is necessary to ensure operator safety and coating quality. Although handheld spraying has been carried out for nearly a century, it is not the preferred or safest means of spraying. The thermal spray environment is harsh and not suited for handheld operations.

Safety has become more of an issue as HVOF and plasma energies and velocities have continued to increase. Operator fatigue (typical surface speeds are 30 m/min, or 1200 in/min) and inconsistency also affect coating uniformity. Part- and gun-handling equipment is required to eliminate the operator from the process. Commercially available, off-the-shelf motion-control equipment usually takes the form of turntables, x–y manipulators, and six-axis robots.

Where the production volume of a specific part warrants the investment, specialized tooling is often used. The disadvantage of using manipulators is in spraying small numbers of complex parts. In limited production runs, programming the manipulation equipment can be more expensive and time-consuming than spraying the part. There are many applications where handheld spraying seems to be the only practical approach to the problem, for example, bridges, boilers, architecture, artwork, one-of-a-kind parts, and so forth.

High-volume production spraying dictates that ancillary processes such as surface cleaning, masking, and grit blasting also be automated. Coating process cells, which represent the highest level of automation, may include pick-and-place robots to handle part loading and unloading.

The figure shows an automated thermal spray cell for coating aircraft engine components. In this plasma spray cell, the operator loads and unloads parts, and the spray cell does all of the operations, including process control, statistical process control, quality inspection for thickness, and final processing. Although expensive, such equipment is justified for coating applications where consistency is critical.

 

Image – Advanced thermal spray cell. Courtesy of Sulzer Metco.

 

This information is from ASM Handbooks Online, Vol. 5A: Thermal Spray Technology, Coating Structures, Properties, and Materials. To find this information (subscription required), click on the link below and scroll down to Figure 11.

https://dl.asminternational.org/handbooks/edited-volume/12/chapter/133823/Feedstock-Material-Considerations-for-Thermal

 

FIU unveils cutting-edge cold spray lab for advanced manufacturing innovation

Florida International University, Miami, Fla., introduced its new Cold Spray and Rapid Deposition Laboratory, a facility that will advance techniques in the repair, design and durability of high-performance materials. The lab is supported by a five-year, $22.9 million grant from the U.S. Army Combat Capabilities Development Command Army Research Laboratory.

The lab will advance additive manufacturing techniques such as cold spray, a technique where particles are blasted onto a material surface at low temperatures. The techniques are highly relevant to 3D printing, the rapid repair of machinery, and the coating of materials to make them stronger. The research stands to benefit the manufacturing of next-generation vehicles and munitions while also boosting workforce development and activity across the economy.

“FIU’s commitment to innovation and impact is on full display today as we celebrate the opening of this lab,” said Kenneth A. Jessell, president of FIU. “We show the world today that we are a leader for Army Research Lab Cold Spray Technology and an influential partner, together with our congressional delegation, in building up Miami’s tech, innovation and manufacturing ecosystem.”

The lab will be led by Distinguished University Professor Arvind Agarwal, chair of FIU’s department of mechanical and materials engineering at the College of Engineering and Computing (CEC) and a renowned expert on advanced additive manufacturing techniques.

“From developing antibacterial coatings for biomedical use to assisting in environmental corrosion prevention in coastal communities, these technologies promise to deliver solutions to a myriad of real-world problems, while helping to train the next generation of researchers, technologists and STEM professionals in the fields of robotics, advanced manufacturing, aerospace technologies and machine learning,” Agarwal said.

The opening of the lab positions FIU as a key provider of research and talent for the Department of Defense and industry partners, particularly due to the increase demand for electronics and the expansion of both the aerospace and defense industries.

Image – Cold spay lab. Courtesy of: FIU.

For more information:

Florida International University

https://news.fiu.edu

 

YouTube Video – First large scale cold spray facility in a Florida university

https://www.youtube.com/watch?v=LIGu6-6Jf-A

Lindberg/MPH ships rod overbend box furnace to the manufacturing industry

Lindberg/MPH, Mich., has announced the shipment of a rod overbend box furnace with powered load/unload table to the manufacturing industry. This heat-treating furnace has a maximum temperature rating of 2000°F and a load capacity of 900 lbs. 

The workspace dimensions of the furnace are 24” W x 36” D x 18” H and it is designed for air atmosphere applications. The box furnace features an automated actuator to flip the push/pull mechanism on the load table to eliminate the operators need to manually flip it into push position. This option allows the push/pull head to retract from the furnace once the work grid is in the furnace chamber and increase operator safety by removing the need to reach into the hot furnace with a hook to flip the push/pull head and.

The furnace chamber is heated with a radiant heating system the utilizes heavy gauge alloy rod over-bend heating elements mounted along the side-walls and the floor. The furnace temperature is controlled by an Allen Bradley ControlLogix Programmable Logic Controller that includes digital setpoint and display. A Honeywell DC2500 high limit controller disconnects the power to the heating elements and sounds an audible alarm if the temperature exceeds desired set-point. 

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Lindberg/MPH ships mesh belt conveyor furnace for use with powdered metal

Lindberg/MPH, Mich., has announced the shipment of an electrically heated, full muffle, mesh belt conveyor furnace. This furnace is designed for treating pressed powdered material.

The furnace is designed for applications with a maximum process temperature of 1000° C (1832° F) that utilize a nitrogen or clean dry filtered air process atmosphere. The unit is configured with 9 temperature control zones and includes a water-cooling section. The conveyor system features a 14 inch wide mesh belt with belt stop alarm to provide an audible and visual indication in case of a conveyor stoppage.

There are purge chambers at the entrance and exit of this conveyor furnace. In these chambers purge gas flows from perforated plenum chambers above and below the belt and exhaust stacks with adjustable butterfly valves are located at the inner ends of each chamber. Load and unload tables at the entrance and exit of the conveyor provide ease of product transfer for the operator.

The furnace zone temperatures are controlled by Eurotherm controllers. These controllers have advanced PID control with variable overshoot inhibition. A hi-limit Eurotherm controller guards against over temperature conditions in each zone of temperature control.  A visual and audible alert and removal of power to the heating element occur in the event the monitor temperature exceeds a desired set point. 

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Can-Eng Furnaces contracted for continuous quench and temper furnace system

Can-Eng Furnaces International Ltd., Niagara, Ontario, was recently contracted to engineer and commission a continuous quench and temper furnace system for a North American producer of mining, construction, and materials handling products. The purchase of this equipment is part of a larger plant expansion and initiative to bring foreign outsourced manufacturing in house.  

This move is not only to improve part quality but also to help eliminate overall shipping costs and reduce supply chain issues which have been plaguing many industries over the past couple of years. This equipment will be part of an automated manufacturing cell and fed automatically from upstream handling equipment. Special considerations have been made to precisely control the quench temperature to reduce hardness variations and improve overall part quality.  

The multizone belt style temper furnace employs high efficiency natural gas fired heating and recirculation systems which have been proven to provide the ultimate in temperature uniformity in even the most demanding of applications.  

 

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Ipsen installs vacuum furnace at Taiwan Hodaka Technology

Ipsen, Tainan City, Taiwan, has announced the installation of a TurboTreater vacuum furnace for a customer in Southeast Asia. Established in 2002, Taiwan Hodaka Technology Co., Ltd. is an aluminum extrusion supplier, specializing in high-end aerospace aluminum alloys. 

They also produce products used in the sporting goods, consumer electronics and automotive industries. The TurboTreater boasts a work zone size of 36” (914 mm) x 36” (914 mm) x 48” (1219mm) with a weight capacity of 3000 lb (1360 kg) and normal operating temperature up to 2400 °F (1315 °C). The furnace was designed with convection heating, allowing for more uniform processing of large cross-section parts and dense loads. It is also capable of quenching at up to 12 bar positive pressure in nitrogen.

Hodaka chose Ipsen for their positive brand reputation, technical capabilities and process know-how.

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Kanthal and Rath announce strategic partnership to expand sustainable industrial heating technology offerings

Kanthal and Rath, Amherst, NY, have announced a strategic partnership aimed at expanding their combined offering in industrial heating technology. This collaboration is set to benefit industries such as steel and petrochemical as they strive to transition to greener practices.

By joining forces, Kanthal and Rath will create the most extensive range of sustainable industrial heating solutions available in the market. Kanthal’s expertise in heating elements and systems, combined with Rath’s premium insulation and refractory products, will provide customers with a unique and comprehensive offering to meet their industrial heating needs.

Robert Stål, president of Kanthal, expressed enthusiasm about the partnership, stating, “We are thrilled to partner with Rath to further expand our offerings in industrial heating technology, enabling societies and industries to make the green shift. In this era of electrification, this partnership will provide our customers with a broader range of innovative solutions that will enable them to optimize their operations and achieve their sustainability goals. Together, we can leverage our collective expertise to deliver greater value to our customers and help them thrive in a rapidly evolving market.”

Andreas Pfneiszl, CFO/CSO of Rath, emphasized their focus on sustainability, particularly in developing energy-saving refractory products and materials for electrically heated furnaces. He stated, “With our strategic partner Kanthal, we will enable customers’ shift towards fossil-fuel-free production.” This partnership aligns with Rath’s commitment to environmentally friendly practices.

Through closer collaboration in developing new technologies and solutions, Kanthal and Rath will leverage their expertise to drive the technology shift that industries like steel and petrochemical are currently undergoing. The joint go-to-market model will provide customers with a comprehensive portfolio of products and services, offering enhanced value and convenience.

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