Vacu-Braze recently installed a new water quenching furnace in their Quakertown, PA, facility. This acquisition will allow for the expansion of capabilities to include rapid quenching of specialty aerospace materials such as steels or titanium.
The new furnace from LuciferFurnaces, measuring 45.5”x29.5”x28,” contains argon and nitrogen atmosphere capabilities which allow for processing in a protective atmosphere even at high temperatures while maintaining AMS 2750 compliant uniformity. The pyrometry team at Vacu-Braze was able to achieve Class 2 pyrometry, opening up more available processes such as annealing, austenitizing, normalizing, stress relieving, solution treating, and tempering.
"Lucifer Furnaces was selected for the order," commented Jerry Novak, process engineer at Vacu-Braze, "[as their furnaces] are locally made and could be custom designed for the application. They are built in Eastern Pennsylvania to our desired specifications. Vacu-Braze is always happy to partner with companies that manufacture quality equipment and products in the USA."
The heat treat company also noted that this piece of equipment expands their services to existing clients while providing processes for new clients.
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A manufacturer for the energy industry has recently announced the installment of a roller hearth furnace system. The heat treat system is comprised of two (2) box furnaces with quench tanks, a dual directional load transfer car, four (4) companion draw batch ovens, and two (2) stationary load/unload tables.
The system from Lindberg/MPH has a maximum operating temperature of 1850°F for the box furnaces, which are designed for nitrogen-based atmosphere applications. The load space dimensions of the box furnaces are 48” W x 96” D x 36” H, with larger internal chambers to provide clearance for baskets or fixtures. A snake chain pusher assembly with a dual-directional pacecar is used by each furnace to transfer the loads from the chamber to the pneumatically operating quench elevator deck.
The glycol quench tanks are designed for quick and uniform quenching, featuring an immersion oil heater and an externally mounted air-to-quench media heat exchanger. The tanks’ agitation systems include four agitators with draft tubes. The gross load capacity of the car is 10,000 lbs., and it travels linearly in front of the equipment on two embedded floor rails.
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A horizontal spray quench furnace has been completed for C/A Design’s heat treat facility in Exeter, NH. The system will help treat components for the aerospace and defense industry.
The furnace, from Wisconsin Oven, will be used for the solution treatment of aluminum. The system is designed to soak the product load at temperature in the furnace and then a pusher mechanism rapidly moves the load into the spray quench. The spray quench offers reduced distortion in comparison to submersion quenching.
The maximum temperature for this system is 1150°F and it has the capacity to heat a 200 pound aluminum load plus the work grid and product fixture. C/A Design’s new furnace has the capability to meet AMS 2750G, Class 2 furnace and Instrumentation Type D requirements.
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A Pennsylvania company recently heat treated and quenched a fabricated 47,000-pound gear. In addition to this gear, about a month ago, its reverse image (with the helix in the opposite direction) was also heat treated. The halves will be matched when grinding is complete to make a complete gear to drive a rolling mill for a steel plant.
Mark Podob President Metlab Source: LinkedIn
The gear, the largest Metlab has ever treated, measured 12' in diameter and has a 30” face width. Material was 18CrNiMo6-7, and case depth required was a nominal 0.275” effective case depth with a surface hardness of HRC 58 – 62. Typical taper on a gear this size is about 0.030”. Carburizing time to achieve the required case depth is about 10 days in the furnace at 17250F. After lowering the temperature of the furnace and gear to 15500F, it is quenched in oil. The transfer time from the pit furnace into the quench tank is less than a minute.
After quench, the gear will be double tempered, sandblasted and prepared for shipment to the Midwest for final grinding. Mark Podob, president at Metlab, commented, "To our knowledge, the furnace used to heat treat this series of four gears is the largest pit carburizing furnace in the United States . . . . [T]he two 47,000 pound gears are the largest that Metlab has carburized and hardened in its 25 year history."
Photographs show the gear at 1550°F being lowered into the oil tank.
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A new, fully automated quenching system is nearing completion and will be installed at C/A Design’s heat treat facility in Exeter, NH, which serves the aerospace and defense industry. It has been custom designed and developed specifically to service aluminum brazing applications, expanding capabilities and services.
The system, from Wakefield Thermal, adheres to the guidelines set by both AMS2750 and AMS2770, ensuring proper heat treatment for aluminum brazements and adherence to critical specifications. The custom solution for C/A Design includes temperature and quenching control technology.
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An East Troy, WI, heat treat systems manufacturer announced the shipment of an electrically heated horizontal quench system to a manufacturer of products for the automotive industry, specifically for aluminum solution treatment.
Wisconsin Oven manufactured the system with a maximum temperature of 1,200°F and interior chamber dimensions of 2' x 2' x 2'. The system has the capacity to heat 450 pounds of aluminum parts plus the steel basket within 60 minutes. Temperature uniformity of +/- 10°F at set points 850°F and 1,050°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. "This horizontal quench system was designed with a manual quench which is a cost-effective option and still ensures there are no improperly processed parts," commented Doug Christiansen, senior application engineer at Wisconsin Oven. "The system also features foldable unload wheel rails to save on floor space.”
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A forging tool manufacturer will receive an agitated heated oil quench tank to be used post-heat treatment in order to set hardness. Tools such as nippers and ladles -- critical components in the foundry and in forging equipment -- are heat treated to the required hardness and then quenched in oil to set that hardness.
The L&L Special Furnace Co. small model QTO1224 heated oil quench tank holds 65 gallons of oil and can quench parts from 50 to 75 pounds. The quench tank oil is agitated by an impeller with a ½ HP explosion-proof motor and is heated with a 4.5 kW immersion heater to maintain the oil at a slightly elevated temperature to help eliminate oil flashing and fire potential.
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Maciej Korecki Vice President of Business of the Vacuum Furnace Segment SECO/WARWICK
The Andritz Group, a manufacturer of complete lines for cold-rolled strip production and processing, has ordered a vertical vacuum furnace. The furnace for gas quenching processes will help produce consistent product quality.
SECO/WARWICK Group , a manufacturer with North American locations, equipped the Vector® furnace with a graphite chamber, gas cooling system, and a rotating hearth. The Andritz Group, with this system, adds to their heat treat capabilities in hydraulic power, pulp, and paper as well as metals processing industries.
This is the first vacuum furnace manufactured in the Tianjin facility of the SECO/WARWICK Group. “We have already worked with the Andritz Group, but this time it is the first contract with our Chinese branch. The Vector furnace is manufactured in our Chinese factory, which significantly shortens the solution’s delivery time to the customer," says Maciej Korecki, vice president of the Vacuum Products Segment at SECO/WARWICK Group.
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ThermTech, heat treat service provider in Waukesha, WI, has increased their capabilities to provide services for the medical, aerospace, mining and oil, nuclear, and agricultural industries.
Jason Kupkovits, vice president of Sales & Strategic Direction at the company, commented on that ThermTech will be continuing their 40 years of quality assurance, turnaround time, on-site engineering, and customer service standards.
Ben Gasbarre Executive Vice President of Sales Gasbarre Thermal Processing Systems
Partnering with Gasbarre Thermal Processing Systems, ThermTech significantly increased their normalizing, annealing, stress relieving, tempering, and neutral hardening capacity through the acquisition of three new furnaces. These three furnaces --- now fully operational --- include: a dual zone, direct-fired box austenitizing furnace; a large batch tempering furnace; and an additional tempering furnace. These furnaces are compliant with AMS2750 at different class certifications.
ThermTech has also added two additional vacuum furnaces from Ipsen, USA. The furnaces have dimensions of 36” wide x 36” tall x 48” long with capabilities of quenching up to 6 bars of pressure utilizing nitrogen or argon gas as the quench medium. These large vacuum furnaces are AMS class 3 (+/-15°F) certified capable of AMS2750.
ThermTech added a solution annealing furnace from Williams Industrial Service to give their operational aluminum line additional heat treat capabilities. This line is capable of a sub-15 second transfer to air blast quench, a water quench range of 55°F up to boiling, a sub-7 second transfer to water quench which exceeds AMS 2770/AMS2771 specifications, as well as load thermocouple monitoring during the solution treatment, quenching, and aging.
Daniel Hill, PE Sales Engineer AFC-Holcroft Source: AFC-Holcroft
Another recent acquisition includes a new austempering/marquenching furnace from Michigan based AFC-Holcroft. This furnace can handle a single part racked in the vertical orientation up to 56" long. The working dimension of the furnace is 36" W x 72" L x 56" H and is capable of operating with salt temperatures ranging from 350°F -- 750°F. "The UBQA system is an environmentally friendly ‘green technology,’" commented Dan Hill, sales engineer at AFC-Holcroft, "which can be used to impart resistance to distorting, cracking or warping of heat-treated components.” Applicable processes include marquenching, austempering, and carburizing with additional washing and tempering capacity accompanying the new marquenching/austempering furnace. Installation is expected in early 2023.
The heat treat service provider's long-term strategy is to increase growth in the Midwest and on a national scale. This includes adding more workers and integrating the use of a robotics handling systems, which is expected to be installed in late 2022.
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PEMCO Conversions – Airborne Maintenance and Engineering Services operators will join the "Three Second Club" with a new dual chamber heat treating system capable of quenching aviation grade aluminum aircraft parts in less than five seconds.
The modern DELTA H® Technologies, LLC Dual Chamber Aerospace Heat Treating (DCAHT®) system will replace PEMCO's previous DELTA H furnace which was installed in 2011 at PEMCO's location at Tampa International Airport.
The system, with an upper chamber convection oven operable to 500°F and a lower chamber convection furnace operable to 1200°F, includes soak time and quench delay recorded to within 1/10 of a second as well as full documentation systems for work order, part name, quality, and before/after condition. Honeywell controls and recorders are featured and include remote computer control, data entry, and process monitoring. In addition to processing aluminum parts, the system is equipped for PH stainless steel aging and titanium ferrous alloy processes. The replacement system is fully compliant with SAE AMS2750G requirements.
Team with DCAHT® system Source: DELTA H
To achieve SAE compliance, DELTA H provided additional training for PEMCO employees.
DCAHT® system Source: DELTA H
“We look forward to sharing about our continued success with [DELTA H’s] great product [. . . ]. We couldn't be any happier," Cruz Hernández, Airborne Maintenance and Engineering Services Back-Shop supervisor stated,
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