ATMOSPHERE AIR FURNACES NEWS

CAB Capabilities Expanded for Heat Exchanger Manufacturer

An aluminum heat exchanger manufacturer specializing in the production of heat exchangers recently expanded its production capabilities with a semi-continuous furnace for controlled atmosphere brazing (CAB) aluminum components. The system for semi-continuous operation, based on the cycle multi-stage division, is designed to increase the efficiency and quality of the heat exchangers with ribbed plate construction.

Piotr Skarbiński
Vice President of Aluminum and CAB Products Segment
SECO/WARWICK

SECO/WARWICK provided this CAB system, often chosen by the HVAC industry and manufacturers of car parts, for the industrial production of heat exchangers. The semi-continuous operation mode ensures uniform heating of elements even with above-average dimensions.

“The key advantages of this solution includes higher hourly efficiency — modern brazing technology ensures shorter production cycle time; stable and repeatable quality — the advanced brazing atmosphere control system minimizes the risk of defects, guarantees faster maintenance as well as no production downtime. . . . The semi-continuous CAB system is popular because it allows users to realize a reduction in costs while producing atmosphere brazing with exceptional quality control,” said Piotr Skarbiński, vice president of Aluminum Process and CAB Business Segment in the SECO/WARWICK Group. “We supply solutions to many companies in Asia, and a large part of the contracts are the result of recommendations we receive from our customers.”

The CAB line includes a drying furnace, an inlet purging chamber, a patented heating and brazing chamber, an intermediate cooling chamber with an air jacket and a direct final cooling chamber. The product moves between stages in a horizontal position based on a continuously adjustable cycle time, depending on the load’s type and configuration. The semi-continuous operation mode ensures that even large-sized heat exchangers will be heated evenly during the correct process time.

Press release is available in its original form here.



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Manufacturer Expands Aluminum Heat Treat Capabilities

A provider in the power solutions industry has enhanced its operations with a heat treat drop-bottom furnace for the solution heat treatment of aluminum castings. This installation will increase the company’s production capabilities, with the furnace having a load setting of 48 in (123 cm) wide x 36 in (91 cm) high x 141 in (358 cm) long.

The furnace, the fifth designed and manufactured by NUTEC Bickley, has a single temperature control zone, typically operating at 1000°F (573°C), with a maximum of 1075°F (580°C). The load setting will accommodate up to three baskets, equivalent to around 3600 lb (1635 kg) of aluminum parts per cycle. The furnace has been customized to be indirect gas-fired using radiant tube burners. Additionally, the project incorporates a motorized quench tank, rails, movement system, and load/unload platform with elevator device.

Arturo Arechavaleta
Vice President, Metal Furnaces
NUTEC Bickley

“Efficient and effective solution heat treatment is a vital part of the aluminum casting process,” said Arturo Arechavaleta, vice-president of Metal Furnaces at NUTEC Bickley. “Without the sort of advanced system that we have custom-designed, volume production of high-quality aluminum parts is not feasible. We’re proud to have played an important role in this technology partnership.”

The indirect gas firing is via single centrifugal recirculation that produces a vertical flow pattern. Heating is achieved with four radiant tube burners that have individual flame safety devices. The burner system incorporates a motorized control butterfly valve, and the gas flow is controlled by proportional ratio regulators. This design, with its baffle arrangement, delivers an even flow pattern, providing excellent temperature distribution and control in the furnace’s load chamber and high-efficiency heat recirculation (convection) horizontally across the aluminum castings. Excellent temperature uniformity was always considered an important parameter, and this has been shown to be ±5.4°F (±3°C) under full test in the provider’s manufacturing facility.

In order to maintain excellent thermal efficiency in operation, the furnace walls are fully lined using ultra large proprietary ceramic fiber modules. Their configuration and fixing provide for excellent insulation and long life coupled with low maintenance. The insulation layer is 6 in (150 mm) thick and has a density of 12 lb/ft3 (192 kg/m3).

The installation will see the drop-bottom furnace itself stationary — in a fixed elevated position — with the quench tank and loading car moving to accommodate baskets at the selected position. The furnace has a single, pneumatically operated horizontal slide door. For these particular aluminum castings, the company will employ a motorized water quench system provided by NUTEC Bickley, as well as its rails included leveling and installation. The tank has been designed to accept a full load of pieces within the work basket when the furnace is positioned vertically above it.

Press releases are available in their original form here.



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US Heat Treater Adds Furnaces, Marquenching Capabilities

A commercial heat treating company recently added new furnaces and process improvements to its operations in order to serve manufacturers in advanced industries, including aerospace and defense. The improvements include a high-temperature oxidation furnace, a fully rebuilt furnace, and the expansion of marquenching capabilities.

Phoenix Heat Treating, based in Phoenix, AZ, has introduced a high-temperature oxidation furnace specifically designed for space components. This equipment has a maximum operating temperature of 1975oF and operates in an air atmosphere, providing the thermal stability and precision needed for the demands of aerospace applications and to serve the evolving needs of the space industry.

A fully rebuilt furnace has been reactivated in the company’s production lineup. This furnace is tailored for processing primary long Inconel 718 and A286 age cycles. With a maximum weight capacity of 2000 lbs., it handles heavy and complex loads with a goal of ensuring consistent and reliable results for critical nickel-based alloy applications and improving efficiency and capacity by increasing the number of Inconel 718 cycles per week.

Marquenching operations are also seeing an upgrade as materials have been ordered to increase load sizes from 25 lbs. per load to 250 lbs. per load. Expected to be complete by mid-February, this enhancement represents a tenfold increase in capacity, allowing Phoenix Heat Treating to achieve faster turnaround times and larger batch processing capabilities.

Additionally, a state-of-the-art freeze/temper unit has been brought online. This equipment is capable of reaching temperatures between -270oF and 200oF and will be a part of the company’s aluminum thermal cycling processes, enabling precise control over temperature profiles for optimal material performance. The new unit’s capacity is roughly double that of the previous maximum reached and will allow Phoenix to handle significantly larger loads and meet growing customer demand.

The press release is available in its original form here.



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Agriculture Solutions Manufacturer Bolsters Furnace Line

A manufacturer which supplies agricultural ground engaging solutions has improved its production efficiency with two roller hearth furnace systems. The furnaces will be used to re-heat flat stock for hot forming, replacing existing equipment as part of a plant modernization initiative at its locations in both the United States and Canada.

The company commissioned the two 8000 lb/hr, high-temperature re-heat furnaces lines from CAN-ENG Furnaces International Limited (CAN-ENG) to heat steel plates to temperatures suitable for hotworking, where pieces are formed by a hydraulic press. The Ontario-based heat treating equipment provider designed the fully automated system to reduce energy consumption and floor space, while improving product flow and maintaining high-throughput requirements.

Scott Cummings
Sales Manager
CAN-ENG Furnaces International Limited

Each furnace is capable of operating up to 1750F and producing a part ready for forming every 15 seconds. The former equipment required alloy fixtures that consumed additional energy to heat up each time along with the product as well as costly periodic replacement and maintenance, heating the product directly on the furnace rolls increases the efficiency and reduces the overall equipment size.

“Can-Eng was selected as the supplier for this project based on our vast experience with high temperature roller hearth furnace systems and Can-Eng’s reputation to stand behind our equipment,” said Scott Cummings, sales manager for CAN-ENG.



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Aero/Auto Aluminum Manufacturer Expands Heat Treatment

Taiwan Hodaka Technology, an aerospace and automotive manufacturer, extends its market reach by adding an aluminum aging furnace to its heat treatment capabilities. The furnace, which is designed for aging using T77 technology, will allow the company to meet the highest safety and strength standards. 

This is the first transaction between Taiwan Hodaka Technology, which is involved in the design and processing of parts made of aluminum alloys, and SECO/WARWICK. The furnace operates in the temperature range from 176° to 428°F (80° to 220°C) with a temperature uniformity in the last heating phase, of ±47.4°F (3°C) in accordance with the AMS 2750 standard.

“The solution supplied by SECO/WARWICK will allow us to enter a new market segment. We are a partner for many key players in the aviation industry. The T77 aluminum aging furnace will enable us to serve customer requirements even better. At the same time, the new technology will support our commitment to reducing our impact on the environment,” said Dr. Sam Chiang, vice president for R&D at Taiwan Hodaka Technology Co. Ltd.

Tomasz Kaczmarczyk, Sales Manager of the Aluminum Process and CAB Furnaces Teams, SECO/WARWICK

For heat treated alloys (2xxx, 6xxx and 7xxx series), the letter T and one or more digits are used after the alloy series symbol. The first digit is the most important, as it indicates the type of heat treatment applied to the alloy, while the remaining digits (if provided) indicate heat treatment variants or their modifications. The 7000 series of aluminum alloys have the highest strength of all other aluminum alloy series and are commonly used in aviation since they are held to the highest safety and strength standards.

“T7 denotes the process of solution heat treatment and artificial aging to an overaged state to obtain specific properties, e.g. increased corrosion resistance,” said Tomasz Kaczmarczyk, sales manager of the Aluminum Process and CAB Furnaces Team at SECO/WARWICK. “Sometimes, in addition to the digit denoting the standard heat treatment, an additional digit is used to denote modifications to the given treatment or stress relief procedures. For example, for 7xxx alloys, the symbol T77 denotes retrogression and re-aging. The use of this process improves the alloy’s corrosion resistance, which is so crucial in the production of aircraft parts. The applied technology will allow Taiwan Hodaka Technology to produce high-quality profiles used in the aviation industry in accordance with the AMS standard.” 

Piotr Skarbiński
Vice President of Aluminum and CAB Products Segment
SECO/WARWICK

“The furnace on order equipped with electric heating will process 1500 kg of aluminum profiles with a maximum length of 5500 mm. This is a two-zone solution with a total heating power of 420 kW. The solution for aluminum aging, powered by electric heaters, eliminates the problem of CO2 emissions and is in line with the ecological trend increasingly common in heavy industry,” said Piotr Skarbiński, vice president of the CAB and aluminum products segment at SECO/WARWICK.

The furnace will be used at the company’s newly built plant in Taiwan.

The project partner was PEERENERGY, which offers thermal process consulting, project management, and equipment supply for the aerospace, military equipment, and semiconductor industries.

The press release is available in its original form here.



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Furnace Manufacturers Form Partnership To Bolster Processing in North America

AFC-Holcroft (AFCH), an industrial furnace manufacturer based in Wixom, MI, recently announced a strategic partnership with Tokai Konetsu Kogyo Co., Ltd. (TKK), a designer and manufacturer of industrial furnaces in Japan and China. The merger is aimed at enhancing their industrial furnace business for electronics part and battery material (anode/cathode) processing in North America.

Tracy Doughterty
Chief Operating Officer
AFC Holcroft
Source: AFC Holcroft

AFC-Holcroft designs and manufactures a wide range of industrial furnaces, including universal batch quench, pusher, continuous belt, roller and rotary hearth, and walking beam furnaces, predominantly for the North American market. Tokai Konetsu Kogyo Co., Ltd., based in Tokyo, Japan, is an industrial furnace manufacturer with a client base primarily in Japan and China. The company has supplied continuous and batch furnaces and battery material processing furnaces to industrial sectors across North America, including the United States, Canada, and Mexico, as well as Asia.

“AFC-Holcroft is thrilled to join forces with TKK,” said Tracy Dougherty, chief operating officer of AFCH. “Together, we will drive innovation and deliver exceptional value to our EV customers in the anode and cathode materials industrial furnace market.”

The press release is available in its original form here.



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Truck Beam Heat Treat Line For Auto Industry

A truck beam heat treat line with two large walking-beam furnaces is currently being installed for a leading Latin American auto structural component designer and manufacturer. The industry leader will use one furnace for austenitizing and the other for tempering. The truck beams are 13 in (33 cm) wide, 4.5 in (11.5 cm) high, and 49 ft (15 m) long, weighing at about 625 lb (285 kg). A closely controlled environment is necessary in order to induce the required change to the steel beams’ crystal structure.

The furnace line will be provided by NUTEC Bickley, their third such order for this auto industry manufacturer.

New furnace line from Nutec Bickley
Source: Nutec Bickley

The austenitizing furnace is a continuous unit, capable of treating 60 beams (roughly equivalent to 17 tons of steel) per hour. It has an operating temperature of 1670°F (910°C), and a maximum temperature of 2010°F (1100°C). There are 10 automatic control zones, designed to promote temperature uniformity.

There are 29 high-velocity burners, sited above the load. These allow for low NOx emissions, featuring stable high excess air and excess fuel operation, direct spark ignition, integral air and gas meters, sturdy cast construction and flame rod ionization. The burner configuration creates gas recirculation and allows uniform heating of the load and better heat transfer to the product through radiation mechanisms and convection.

The furnace employs NUTEC Bickley’s IMPS™ combustion system for energy savings, enhanced process control, optimal kinetic energy utilization from burners, temperature uniformity without excess air, a high turndown ratio, and other key benefits.

The tempering furnace — capable of heat treating beams at a rate of 60 pieces per hour — has an operating temperature of 915°F (490°C) and a maximum temperature of 1110°F (600°C). There are six automatic control zones and the heating method for tempering is via air circulation with a vertical flow pattern, ceiling to floor with six centrifugal fans.

Both of these furnaces benefit from insulation based on the patented Jointless® ceramic fiber system that allows fast heating and cooling and reduces heat storage. Using MacroModules, this insulation is 8 in (20 cm) thick in the combustion zones. Thermal efficiency has also been guaranteed with a specifically design of the door frame and canopy for both access and exit doors. Both furnaces are fully NFPA 86 compliant.

The press release is available in its original form here.



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Schilling Forge Increases Capacity with Car Bottom Furnace

Schilling Forge, a supplier of precision forgings based in Syracuse, NY, recently increased its annealing capacity with a car-bottom furnace. The company produces forgings for a variety of industry segments in medical manufacturing, including surgical, dental, orthodontic, and endoscopic.

The furnace, designed and manufactured for the company by Gasbarre Thermal Processing Systems, is electrically heated with an operating range of has a work zone of 60” x 84” x 40” with a 9,000-lb load.  It is electrically heated with operating range of 1250°F to 1600°F (732°C to 871°C).

“We are excited about the arrival of our new Gasbarre car-bottom furnace that increases our annealing capacity by 67%,” reported Schilling Forge on a LinkedIn post. “You can see our survey posts where we attached our thermo-couples at 9 various locations to verify the temperatures throughout the cycle.



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Volkan Steels Expands Production Capabilities With Nitriding/Nitrocarburizing System

A tool supplier has boosted its production capabilities with the installation of a new nitriding/nitrocarburizing system, expanding its heat treatment services with a large-capacity batch furnace to perform advanced nitriding, nitrocarburizing, and post-oxidation treatments.

Belgin Mert
General Manager
Volkan Steels
Source: kalypdunyasi

Volkan Steels Powders Metal San. Tic ve Ltd. Şti. (V’Steels) acquired the nitriding/nitrocarburizing system from North American furnace manufacturer Nitrex to match the company’s current production capacity and to accommodate future expansion. The Nitrex turnkey system has a 2,000 kg (4,400 lb) capacity for processing tooling loads, including aluminum extrusion dies, die-casting dies, forging dies, and plastic injection molding dies, for industries such as energy, petrochemistry, defense, and maritime.

“Our heat treatment services, which began in 2023, have been strengthened by our recent investment in a Nitrex furnace. This enhancement allows us to comprehensively meet the heat treatment needs of our long-standing business partners in the tool steel industry, enabling them to achieve higher performance,” said Belgin Mert, general manager of V’Steels.

Utku Inan
Nitrex Sales Representative in Türkiye
BDI
Source: Nitrex

“The decision to integrate a Nitrex system was influenced by the expertise of the V’Steels team, several members of whom have prior experience with Nitrex from their previous roles. Our strong relationship and the team’s deep understanding of Nitreg® technologies made this an easy choice,” said Utku Inan of BDI Metal, Nitrex sales representative in Türkiyee. “We managed the installation and startup seamlessly, ensuring optimal performance from the start. V’Steels’ positive feedback underscores their satisfaction with both the Nitrex system and our comprehensive support.”

Marcin Stokłosa
Project Manager
NITREX Poland
LinkedIn.com

“The integration of the Nitrex system will significantly enhance the performance and reliability of tool steels, resulting in longer-lasting and more efficient tooling for V’Steels’ customers,” said Marcin Stoklosa, technical sales manager – EMEA region at Nitrex. “By utilizing Nitreg® technologies, V’Steels is set to offer finished tooling that endures longer under operational stress, translating into increased throughput and reduced downtime for their clients. This advanced treatment not only boosts tool durability but also improves operational value, giving V’Steels’ customers a competitive edge through superior tool steel quality and consistency.”

The press release is available in its original form here.



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Fringe Friday: Furnace Designed To Fit Medical Industry Supplier Specs

We’re celebrating getting to the “fringe” of the weekend with a Heat Treat Fringe Friday covering news about a Class A safety batch furnace delivered to a supplier to the medical industry. The components manufacturer needed equipment that would accommodate the doorway dimensions of its facility and found a Pennsylvania-based international industrial and laboratory furnace manufacturer able to design one to fit the specs. 

While not exactly heat treat, “Fringe Friday” deals with interesting developments in one of our key markets: aerospace, automotive, medical, energy, or general manufacturing.


A supplier to the medical industry recently purchased a Class A safety oven from an international industrial and laboratory furnace manufacturer. The Pennsylvania-based provider designed the batch furnace for ease of move-in and installation, modified to an overall height of 79 inches and width of 45” to accommodate the ceiling height and doorway dimensions at the client’s facility.

Blue M® manufactured the furnace with a temperature range of 15°C (59°F) above ambient to 316°C (601°F). The temperature is controlled by a Watlow EZ Zone PM controller with advanced PID control algorithm. The controller offers TRU-TUNE™ adaptive control for tight control and auto-tune for a quick, efficient start up.

 “Blue M offers customers the flexibility to request engineered-to-order modifications to our standard oven designs,” said Jonathan Young, product manager at Blue M. “This Class A oven features custom exterior dimensions to accommodate the customer’s facility ceiling height and doorways. This is the second unit with these special dimensions that this customer has ordered.”

The interior chamber has dimensions of a 48″ W x 24″ D x 48″ and is constructed with 304 stainless steel. All of the seams and ports of the interior chamber are Heli-Arc welded vapor tight to prevent fume infiltration and buildup of flammable materials between the chamber walls. The unit includes five (5) 304 stainless steel slotted shelves with rolled fronts for ease of product loading. Each shelf is capable of holding a 75lb product load.

Blue M is located in New Columbia, PA, owned by Thermal Product Solutions.

The press release is available in its original form here.



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