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Spray Quench Aluminum Solution Furnace

Wisconsin Oven announced the completion of a Horizontal Spray Quench Furnace for C/A Design located in Dover, NH. This furnace 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 company reported.

The maximum temperature for this system is 1,150 °F. It has sufficient capacity to heat a 200 lb. aluminum load plus the work grid and product fixture. A temperature uniformity survey was documented for +/-10 °F at 985 °F to verify the furnace has the capability to meet AMS 2750G, Class 2 furnace and Instrumentation Type D requirements.

The spray quench is located in front of the oven and has vertical-lift, pneumatically operated doors on each end. The spray quench system utilizes 50 fine mist nozzles located above, below and on each side of the quench chamber to rapidly cool the product from all sides. Each nozzle is independently selectable from the touchscreen HMI and a variable frequency drive allows the pump speed to be adjusted to maintain a constant pressure to each spray nozzle.

Doug Christiansen, Senior Application Engineer, said, "This aluminum solution treatment furnace utilizes a unique spray system for quenching of the load. The spray system is programmed to allow the nozzles to be independently selectable and is capable of turning off up to 75% of the nozzles giving the operator the flexibility to control the quenching of various size loads. Wisconsin Oven worked extensively with C/A Design's team to provide a custom solution to meet their requirements including several automated features built into the system."

Features of this horizontal spray quench system include:

  • Maximum quench delay of 15 seconds
  • Spray quench system with 50 nozzles (each is manually selectable or programmable within a heating/quenching recipe)
  • Spray nozzles are individually isolated for ease of maintenance and replacement
  • Powered pusher/extractor for charging the load into the furnace (capable of manual or automatic operation)
  • Chiller system to remove heat from the spray quench water tank (exterior roof mounted to save valuable floor space)
  • Seven day programmable automatic start-up (to allow the furnace to be preheated before the start of the each shift)
  • Scissor lift elevator with manual foot pedal or automated lift/lower capabilities
  • 10,000 CFM at 10 HP plug-mounted recirculation blower with combination air flow
  • 15" HMI color touchscreen for furnace/spray quench/pusher operator interface control
  • Eurotherm Nanodac controller/recorder for furnace temperature and spray pressure control
  • Feature to disable the quench chamber sprayers with capability to place the load directly onto the scissor lift to utilize the customers air quenching capabilities.

For more information contact:

Wisconsin Oven Corporation

2675 Main St.

East Troy, WI 53120


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