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October 2011
Walk-in batch oven

Wisconsin Oven Corp.’s most recently built gas-fired, walk-in batch oven for curing composites is 12-ft wide by 8-ft high by 46-ft long (3.7m by 2.4m by 14m) and is divided into two independent chambers.

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Posted on: 9/29/2011
Source: Composites Technology

Wisconsin Oven Corp.’s (East Troy, Wis.) most recently built gas-fired, walk-in batch oven for curing composites is 12-ft wide by 8-ft high by 46-ft long (3.7m by 2.4m by 14m) and is divided into two independent chambers. The chambers are separated lengthwise by a vertical-lift door. That permits the operator to significantly expand the ovens' capacity. The front section has a useful chamber length of 25 ft/7.6m, and the rear section has a useful length of 20 ft/6.1m. When the center door is open, the useful length is 45 ft/13.7m. It is designed to ramp 3,500 lb/1,588 kg of molded composites and steel tools per section from 70°F/21°C to 300°F/149°C within one hour. The maximum operating temperature is 500°F/260°C. Each section has a 1.5 million BTU/hr industrial air heat burner, including a motorized gas control valve, a flame detector and a flame relay with an alarm horn. The front chamber recirculation system has a blower that moves air at a volume of 37,000 ft³/min at 30 hp, and the rear chamber's blower is capable of moving 30,000 ft³/min of air at 25 hp. A combination airflow design was used to maximize heating rates and temperature uniformity. For precise temperature and pressure control when curing composites, the system features motorized dampers on both the fresh air inlet and the exhaust outlet to enhance heating and cooling capabilities. The vacuum system has a total of 80 interior vacuum stubs and 40 vacuum ports located throughout the oven. The oven also is equipped with 80 J-type thermocouple jacks and a jack panel that is wired to the data-acquisition system. This permits the operator to control and record temperatures during the cure cycle.  

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