Wisconsin Oven Corp., East Troy, has shipped one electrically heated conveyor oven to an automotive manufacturer, which will be used for tempering automotive parts. The conveyor oven features a chain style conveyor system with vertical pins, ensuring the uniform transfer of parts through the heating and cooldown zones of the oven. The maximum temperature rating of the conveyor oven is 260° C, with interior chamber dimensions of 3’6” W x 20’10” L x 9” H.
The conveyor oven also features a top-down bottom-up airflow configuration designed with a 55,000 CFM @ 50 HP blower, ensuring optimal temperature uniformity of ±2.5° C at 163°C, documented with a temperature uniformity test. The oven is equipped with a continuous chain conveyor with vertical pins, programmable temperature controller, and recorder with Ethernet capabilities.
The unique features of this tempering oven include the ability to automatically scan the parts while being loaded onto the conveyor and validate that the correct part is being loaded, providing a pass/fail regarding heating time and temperature. The conveyor oven also includes an ambient cooldown zone and supervised installation with start-up and training.
Mike Grande, vice president of sales,said that, “Our continuous designs provide customers with innovative solutions to meet their load and process requirements. This conveyor oven was designed with high-velocity impingement air nozzles for rapid, uniform heating and optimal part results.” The equipment was fully factory tested and adjusted prior to shipment from the facility, ensuring it met all Wisconsin Oven quality standards. The equipment comes with a 2-year warranty, providing peace of mind for the automotive manufacturer.
Solar Atmospheres Inc. announces the acquisition of Vac-Met Inc., increasing its total commercial vacuum heat treating and brazing facilities to five plants across the U.S.
Wisconsin Oven Corp., East Troy, has shipped a natural gas direct-fired batch oven with a separate cooling chamber to a manufacturer of automotive parts for curing rubber automotive hoses.
Gas nitriding has been performed for almost a century with many variations over the years. The benefits of nitriding are well documented and nitriding has gained amazing industrial acceptance. However, the equipment and control of the nitrided layer has continued to be challenging, and as such, nitriding is still slowly being adopted by industry, but the rate of change is improving.
Today's competitive environment often requires one to do more with less – to make equipment last longer and run more efficiently. As such, there are several factors that go into making your equipment run to the best of its ability. With our industry becoming more demanding, there has never been a better time to ask the question: "Where, and in what, do I invest my money with aging equipment?"
This paper offers a close-up look at what is possible when weighing different options for upgrading an aging vacuum furnace, focusing on the many factors that go into choosing the right upgrades and repairs for both your equipment and process requirements.
Specific topics covered include:
The three factors you should always consider before replacing a hot zone
What is required for data acquisition?
The role preventative maintenance plays in extending your equipment's life span
How much is too much to invest in aging equipment?
Linde highlights advanced technologies at Heat Treat 2015
October 15, 2015
Source:
Linde LLC, Murray Hill, N.J., will showcase advanced gas control technologies and engineering services for heat treatment furnaces at Heat Treat 2015 next week in Detroit, booth 248. These include Carbojet gas-injection technology for improving production up to 20%; Hydroflex atmosphere control system for more reliable oxide-free annealing; world-class heat treatment engineering and laboratory services; and safety solutions for flammable atmosphere furnaces (re: NFPA 86)
These heat treatment services and proven technologies are in demand for improving process efficiency, productivity, and quality in manufacturing metal parts for automotive, aerospace, and military components; construction and industrial equipment; and electrical systems, to name a few. More consistent process quality can mean less rework and fewer rejects, and lead to higher profits, process reliability and longer service life.
Linde offers decades of experience in heat treatment across all common furnace types from continuous to batch type furnaces, including roller hearth, pusher, pit or rotary-retort. Expertise spans all typical protective atmospheres—from pure nitrogen, pure hydrogen, nitrogen/hydrogen, nitrogen/hydrocarbon type atmospheres to endothermic gas, exothermic gas and monogas atmospheres.
Improve gas flows and atmosphere homogeneity without fans
The patented CARBOJET gas-injection technology can improve efficiency and the productivity of heat treatment furnaces including roller hearth, pusher, pit, or rotary-retort. Ultrahigh-speed injection of a gas or gas mixture through special CARBOJET lances improves gas flows and atmosphere homogeneity without the use of circulation fans. This includes both the better mixing of the injected gases with the furnace atmosphere, and better movement of the gas flows within the furnace.
Oxide-free parts annealing
The HYDROFLEX atmosphere control system offers a universal solution for clean and bright oxide-free annealing of steel, stainless steel, copper, bronze or brass, with high reliability and repeatability. One or more carrier gases (nitrogen or argon) maintain the furnace pressure while a controlled ratio of hydrogen helps prevent oxidation. With the HYDROFLEX® technology, many annealing tasks can be completed with non-flammable gas mixtures containing less than 5 percent hydrogen.
Engineering and lab services
Engineering is key to optimizing heat treatment solutions. Linde engineers can perform process audits to investigate areas for improvement. This may include analyzing furnace atmospheres, gas supply and control systems, as well as upstream and downstream processes. Linde can also perform customer tests and demonstrations in furnaces at its Technology Center to support feasibility studies, and provide safety and process training.
In addition, engineers at Linde Application Centers can develop new gas supply systems for heat treatment processes and improve the control systems of existing processes. Our metallography laboratory services include material analyses, scanning electron micrography (SEM) and a variety of hardness tests.
Meeting new NFPA safety standards
The National Fire Protection Association (NFPA) is the industry accepted authority of industrial gases and furnaces. All heat treating facilities should familiarize themselves with NFPA 86 "Standard for Ovens and Furnaces". Within NFPA 86 there are specific requirements for Nitrogen Supply Systems used to purge flammable atmosphere furnaces. Linde developed the system to satisfy the NFPA 86 "Standard for Ovens and Furnaces." It includes a nitrogen supply system with an integral alarm panel for safety purge of flammable atmosphere furnaces.
Heat Treat 2015 is the premier heat treating event in North America and presented by the ASM Heat Treating Society. The conference and exposition run in conjunction with Gear Expo, presented by the American Gear Manufacturers Association.
Linde LLC, Murray Hill, N.J., will showcase advanced gas control technologies and engineering services for heat treatment furnaces at Heat Treat 2015 next week in Detroit, booth 248.
The ASM Heat Treating Society announced that the exposition for Heat Treat 2015 has sold out for the second time in a row. Hundreds of heat treating companies and gear manufacturers will be displaying their latest and greatest products and services next month at the 28th annual ASM Heat Treating Society Conference and Exposition in Detroit, Michigan.
With over 290 booths on the sold out floor – an increase of over 20 booths from 2013 – attendees will have plenty of opportunities to see the latest technology in action. A new addition this year are scheduled live demonstrations on the expo floor, which will educate attendees about new equipment in a hands-on way. Other exciting events happening on the show floor are plenary talk from Dr. Alan Taub of the LIFT consortium on Tuesday afternoon, and the exhibitor reception on Tuesday evening. Exhibitors are encouraged to invite their clients and prospects to attend, particularly if they are local.
Heat Treat 2015 is a biannual conference recognized by industry, academia and government professionals as the premier heat treating gathering in North America. This year it is taking placing in Detroit Michigan, a place with deep roots in heat treating and the birthplace of the ASM Heat Treat Society.
To register for Heat Treat 2015, visit here on the Heat Treat event website.
Dual chamber furnace enables simultaneous hardening and tempering
June 23, 2015
Source:
Lucifer Furnaces, Warrington, Pa., announces that a Red Devil dual chamber furnace has been added to the line of analytical equipment at Laboratory Testing Inc., Philadelphia. Dual chamber furnaces allow hardening in the upper chamber while tempering in the lower oven, without waiting for a single-chamber unit to cool. The furnace is capable of meeting AMS 2750 requirements for aerospace, and its large work zone can accommodate larger parts.
LTI uses the furnace for heat treating to various specifications for ASTM, AMS, GE, ASME, and other customer requirements, including solution treatment cycles, aging cycles, post-weld heat treat, normalizing, hardening, and tempering. With both chambers 12x14x24 inches, the upper chamber is programmed to heat to 2200°F, while the lower oven reaches 1200°F. Both chambers are lined with 4.5 inches of multilayer lightweight firebrick insulation and mineral wool backup precision dry fit, to allow for thermal expansion while minimizing heat loss. Easy-to-replace heating elements simplify maintenance.
For this furnace, Lucifer customized a standard Red Devil Model RD8-KHE24 with Eurotherm 3204 programmable controllers and Honeywell UDC1200 over-temperature controllers. The upper chamber was modified with a gas spring vertical lift door.
Laboratory Testing Inc. specializes in metals testing through destructive testing methods, including mechanical, metallurgical, chemical, and corrosion testing, as well as nondestructive testing methods.
Lucifer Furnaces, Warrington, Pa., announces that a Red Devil dual chamber furnace has been added to the line of analytical equipment at Laboratory Testing Inc., Philadelphia.
