Nitrex Partners with Telfer School of Management

February 6, 2024
Source: ASM International

Nitrex Partners with Telfer School of Management

Nitrex, Quebec,  announced a collaboration with the Telfer School of Management, with the aim of nurturing innovation and cultivating the next generation of visionaries through the new PhD scholarship in Digital Transformation and Innovation (DTI). 

Nitrex said that this partnership echoes their commitment to driving digitalization, not only within the heat treat industry but also within academia. They added that this scholarship marks a significant leap in empowering brilliant minds to spearhead groundbreaking research, shaping the future technological landscape of industrial manufacturing.

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Bodycote appointments Group Chief Executive

December 4, 2023
Source: ASM International

Bodycote appointments Group Chief Executive

Bodycote, Macclesfield, U.K, announced the appointment of Jim Fairbairn as the new Group Chief Executive, succeeding Stephen Harris upon his retirement. Fairbairn is set to join the company and its Board in March 2024 and will assume the role of Group Chief Executive in May 2024, following a structured transition period. Stephen Harris will retire and step down from the Board at the Annual General Meeting on May 31, 2024.

Jim Fairbairn, 54, brings a wealth of experience in managing engineering businesses. His career, spanning over thirty years, includes significant roles at John Wood Group, PE-owned Clyde Bergemann, Howden Group, and Megger Group, culminating in substantial experience as both a Divisional and Group CEO.

Fairbairn’s most recent position was Group CEO at Megger Group, a test and measurement specialist based in Dover, which he joined in 2017. Under his leadership, the company saw significant revenue growth to £325m and a notable increase in operating margins. He also played a pivotal role in evolving Megger’s strategy and culture. Before Megger, he held executive roles at Howden Group in Glasgow from 2009 to 2017, ending his tenure there as President of the Howden Power, Environment and Process business, overseeing global product and service revenues exceeding $1 billion across 19 sites worldwide.

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One Minute Mentor: Continuous Operating Furnaces for Tool Steel Strips


Source: ASM International

One Minute Mentor: Continuous Operating Furnaces for Tool Steel Strips

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. Steel grades with 0.4 to 1.2% C, low and high alloyed, can be processed. 

Strip dimensions range between 10 to 750 mm (0.4 to 29.5 in.) wide and 0.05 to 4 mm (0.002 to 0.16 in.) thick. 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.

For more information, click on the link below (subscription required). Then scroll to Figure 9. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005958

Wisconsin Oven ships two horizontal quench systems to the semiconductor industry


Source: ASM International

Wisconsin Oven ships two horizontal quench systems to the semiconductor industry

Wisconsin Oven, East Troy, WI, announced the shipment of two Electrically Heated Horizontal Quench Systems to the semiconductor industry. These systems are designed for the annealing and rapid cooling of various high purity alloy parts.

The operation of each horizontal quench system begins with loading the product onto a work grid located on the loading platform. After the load is lifted into position, a pusher/extractor mechanism at the front of the quench tank moves the load onto the quench lift platform. Then, the furnace pusher/extractor mechanism transfers the load into the furnace for annealing. Once the heating cycle is complete, the vertical lift door opens, and the furnace pusher/extractor moves the load back onto the quench lift platform, lowering it into the water quench tank for cooling. After adequate cooling, the quench lift raises the load, and the front-mounted pusher/extractor mechanism returns it to the scissor lift, where a blow-off system removes most of the water from the load. A video demonstrating this system’s operation is available through a provided link.

Each horizontal quench furnace can reach a maximum temperature of 1,250°F and has the capacity to heat and support a 4,500-pound gross load. These furnaces are designed to achieve a temperature uniformity of +/-10°F. The customer requested a uniformity tolerance of ±20°F at 500°F, 900°F, and 1200°F, which was documented for each system through a nine-point profile test conducted in an empty oven chamber under static conditions.

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Solar Atmospheres South Carolina facility orders 10 bar vacuum furnace


Source: ASM International

Solar Atmospheres South Carolina facility orders 10 bar vacuum furnace

Solar Atmospheres, Greenville, SC, has announced the acquisition of a new 10-bar vacuum furnace for its Greenville, SC facility. Manufactured by Solar Manufacturing, this new horizontal vacuum furnace measures 48 inches wide, 48 inches high, and 96 inches deep. It is designed to handle loads up to 12,000 pounds and is scheduled for installation in late 2024.

The furnace will be equipped with a vacuum pumping system capable of achieving an ultimate vacuum of 1×10-6 Torr, essential for processing titanium and other high-grade alloys. It also features advanced designs for the uniform and rapid cooling of large workloads, enhancing the processing capabilities at the Greenville facility.

Steve Prout, president of Solar Atmospheres Southeast, said, “This new furnace will provide an additional option for high-pressure quenching of large components and workloads in the region. It also offers an opportunity for cost-effective thermal processing in the current economic environment.”

https://solaratm.com/solar-atmospheres-south-carolina-facility-orders-10-bar-vacuum-furnace/

One Minute Mentor: Indirectly heated fluidized-bed furnace

October 16, 2023
Source: ASM International

One Minute Mentor: Indirectly heated fluidized-bed furnace

Most fluidized-bed furnaces are used at temperatures below 1095 °C (2000 °F), although some manufacturers have furnaces capable of treating components to temperatures through 1205 °C (2200 °F). Initially, the gas flows upward through the permeable base to agitate the particles as the pressure is gradually increased. (b) Eventually, the gas flow is sufficient to lift the small particles of refractory materials and to transform the particle movement into a violent turbulent motion.

In the early 1980s, this furnace technology seemed to be on the right track as an alternative to salt bath technology, showing similar advantages and applications but without the environmental hazard of salt compounds, waste disposal, recycling of salts, and so on. Nowadays it can be concluded that salt bath technology was partially substituted by vacuum technology, but especially for bainitic hardening (austempering processes), salt baths are still commonly used and show a slightly growing tendency, whereas fluidized beds are hardly used any more.

This temperature limitation is related to the wear and tear on the retort materials at high temperatures, which was one of the reasons for the reduced interest in this furnace type after the initial hype.

For more information, click on the link below (subscription required). Then scroll to Figure 8.

R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014, https://doi.org/10.31399/asm.hb.v04d.a0005958

Lindberg/MPH completes roller hearth furnace system for the energy industry


Source: ASM International

Lindberg/MPH completes roller hearth furnace system for the energy industry

Lindberg/MPH, Mich., announced the installation of a roller hearth furnace system for a manufacturer of products used in the energy industry. The heat treat system is comprised of two box furnaces with quench tanks, a dual directional load transfer car, four companion draw batch ovens, and two stationary load/unload tables.

The maximum operating temperature of the box furnaces is 1850°F and they are designed for nitrogen-based atmosphere applications. The load space dimensions of the box furnaces are 48” W x 96” D x 36” H, and the internal chambers are larger to provide clearance for baskets or fixtures. A snake chain pusher assembly is used by each furnace to transfer the loads from the chamber to the quench elevator deck.

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Wisconsin Oven to ship three custom conveyor ovens to the molded-fiber industry


Source: ASM International

Wisconsin Oven to ship three custom conveyor ovens to the molded-fiber industry

Wisconsin Oven, East Troy, is scheduled to ship three custom dryers to a manufacturer in the molded-fiber industry. The ovens will be used for drying thick-walled paper pulp molded fiber packaging material used in a variety of products. Molded fiber packaging is made of 100% recycled materials, making them an environmentally friendly solution for companies looking to use sustainable packaging and reduce their environmental impact.

These paper pulp drying conveyor ovens are designed with four temperature zones, and each has the sufficient capability to remove 850 pounds of water per hour from the molded pulp. The ovens feature a maximum temperature rating of 500°. The work chamber dimensions are 8’ W x 120’ L x 1’ H. A total of twelve personnel access doors with explosion relief latches are located on the sides of each unit. Each unit also has stainless steel sheet metal and structure on the wet end to reduce corrosion.

The conveyor ovens are designed with top-down and bottom-up airflow to maximize the drying rate of the paper pulp shapes. The flat wire belt continuous conveyor system uses a variable frequency drive that is adjustable from 0-3 FPM. Emergency stop buttons are located at the load and unload sections of each oven for operator safety.

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Three from Aalberts Surface Technologies included in this years 40 under 40


Source: ASM International

Three from Aalberts Surface Technologies included in this years 40 under 40

Aalberts Technologies, Livonia, announced today that Angella Sell, Connor Montgomery, and Chris Pietszak are members of Heat Treat Today’s 40 Under 40 Class of 2023. The Heat Treat Today 40 Under 40 award recognizes rising leaders in the heat treat community who are giving their time, talent, and education to make the industry a great place to work.

Angella Sell, Research & Development Engineer, is a proven leader, having chaired the ASM Detroit Chapter from June 2020 to June 2021. In 2022 Angella received the ASM Detroit Chapter President’s Award for her leadership role during the challenging pandemic years. Angella is the vice-chair of the AFS Cast Iron Research Committee and will assume the role of chair in May 2024. 

Connor Montgomery, Oshkosh Plant Manager, is focused on hiring and retention practices as well on effective communications. Connor is leading major efforts to improve flow, efficiency, and throughput in the Oshkosh plant. He has introduced the use of modern lean tools such as 5S, FIFO, and Supermarkets to reduce unproductive manhours. He is actively involved in the reduction of additional waste within plant processing. 

Chris Pietszak, Quality Manager, is focsed on the implementation of and support of ISO, IATF, and Nadcap as well as CQI-9 compliance. He is a trained ISO and IATF auditor and an MTI YES Program graduate. Chris played an important role implementing the quality systems during the start-up of the Fort Smith facility. 

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One Minute Mentor: Fluidized Bed

October 4, 2023
Source: ASM International

One Minute Mentor: Fluidized Bed

A fluid bed results when a gas is passed upward through a bed of small solid particles at a rate fast enough to lift these particles and to create turbulence. This motion of particles, which are usually made of aluminum oxide or silica oxide, is similar to that of a fluid, which can be seen schematically in the figure.

When gas is forced upward through small holes in a supporting plate, two forces meet to raise the particles: the buoyancy of the gas and the retarding force known as aerodynamic drag. Objects to be heat treated are immersed directly into the bed of particles.

For more information, click on the link below (subscription required). Then scroll to Figure 7.

R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014, https://doi.org/10.31399/asm.hb.v04d.a0005958