Manufacturer: JL Becker Company
Type: Electrically Heated Mesh Belt Brazing Furnace
Serial: J3454 (built 2007)
Max Temp: 2100ºF
Dimensions:
Load Table: 3’-0” long (from exit of flame curtain door to centerline of front idler roller)
Charge Vestibule: 3’-0” long
Preheat: 2’-8” long
Heating Chamber: 8’-0” long (effective heating area)
Pre Cool Section: 2’-0” long
Flange Plate Connection: 4” long
Cooling Sections: Three (3) 10’-0” long section
Atmosphere Curtain:
Discharge Hood 3’-6” long
Discharge Table 3’-0” long
Load Height: 41” high (from floor to belt)
Clear Height: above the belt: 11" high
Belt Width: 26" wide
Overall Dim’s: 7’-0” wide x 54’-1” long
Zones of control: Two (2)
Heat Input: 225 kW
Zone #1: 150 kW – 5 feet long
Zone #2: 75 kW – 3 feet long
Operating Temp: 2050°F
Maximum Temp: 2100°F
Belt speed: Variable
Design speed: 9.6"/min
Estimated Capacity: 964 lbs./hr.
Belt Loading: 18 lbs./lineal foot
Controls:
Honeywell UDC 2500 Hi Limit controller
Type K thermocouples
Variable belt speed Fuji AC drive controller
Temperature control: JL Becker Computer Management System (CMS)
Allen Bradley SLC PLC,
Color monitor with terminal for operator input.
Furnace Case: Mild steel, welded gas tight; adjustable internal doors at charge and discharge ends; doors manually operated by handle through RC-40 sprockets and roller chain.
Insulation:
Sidewalls: 4½” of 2600ºF insulating firebrick (IFB),
4½” of 2000ºF (IFB)
4½” of high temperature block
Floor: 11" of insulating brick facing heated area
Roof: 12" ceramic fiber stud welded to roof plate
Floor: Supports refractory piers which support hearth plates; belt supported through furnace on silicon carbide hearth plates
Heat Input: 225 kW
Zone #1: Twenty-four (24) Silicon Carbide heating elements – 150 kW, complete with SCR power controller and Marelco Scott-T type multi tap changing transformer, (6) secondary taps
Zone #2: Twelve (12) Silicon Carbide heating elements - 75 kW, complete with SCR power controller and Marelco Scott-T type multi tap changing transformer, (6) secondary taps
