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Fuji fdp-523M high frequency preheater pre-heater rf
Fuji Electronic Industries (FDC) FDP-523M High-Frequency Preheater
Specifications are from Fuji and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
Input Power Requirements: 480 V, 3 Phase, 50/60 Hz, 11 KVA
* Reduction of the molding cycle time by 1/2 to 1/5
* Improvement of fluidity, resulting in sufficient filling of resin into die without voids and air-entrapping
* Virtually no need for de-gassing step in the mold cycle
* Improvement in electrical insulation property of the product and restraint of formaline efflux from mold melamine product
* Reduction of worn-out speed of both the die and the plunger
* Reduction of the required molding pressure, or possible resin filling of a larger volume with the same pressure.
* Less risk of damaging wires in the IC and Semiconductor packaging operation
Automatic Motor Driven Hood:
* No compressed air required... Easy Location and relocation of the unit.
* Wire hood opening angle for easy setting-up and taking out of work pieces.
* Accurate hood closing positioning - Accurate electrodes parallelity.
Easy Maintenance and Minimized Down Time:
* Easy access to control circuits, located inside of the dust-sealed front panel.
* Easy reading of Anode and Grid currents by changeover switch.
* Easy detection of abnormal condition of the interlock circuit by "Orange" lamp.
Easy Access and Simple Operation:
* Minimized operation buttons and clearly visible parameters.
* Selectable cycle buzzer activation, START/STOP.
Safety and Protection Devices:
* Hood safety device, automatic high tension grounding and hood closing interlock.
* Dual main switches with no-fuse breakers.
* Air flow switch detecting oscillation tube ventilation condition.
* Soft-Start Circuits (5-10 kW) for restraining any surge voltage at start.
* Triple construction duster filters restraining incoming dust.
Function of High Frequency Preheating:
High Frequency (H.F.) Preheating of Thermo-set plastic by taking advantage of the H.F. Dielectric Heating principle makes more efficient and trouble-free such as Molding process for compression transfer and pultruction molding.
H.F. Preheating of resin before molding contributed to reduction of the cycle time to 1/2 - 1/5, decrease of insufficient filling of the resign and air-entrapping, resulting in an increase of the yield, and improvement to insulation endurance and other physical strength of the product.
The H.F. Preheating process is widely applied for Thermo-set plastic molding such as for electric components, mechanical parts, melamine tablewares, and packaging of IC, transistors and other micro-electronic components in the FRP pultruction and SMC/BMC molding process, H.F. Pre-heaters are also being used in development.
Principle of H.F. Dielectric Heating:
Fundamentally different from External Heating by means of thermal conduction, radiation, and convection, the H.F. Dielectric Heating is called Internal Heating, i.e., the material generates heat by itself in the result of molecular friction.
Electrical insulation material such as plastic and wood has generally a poor thermal conduction. However, when H.F. power with 3-100 Mhz is applied to such material, it forces molecular (dipole) movement as much as, for example 73 * 1,000,000 times at 73 MHz, resulting in generation of molecular friction and further in rapid generation of internal heat. This feature of the H.F. Dielectric Heating process and makes it incomparable with other methods.
Roller Electrode Type Description:
This type uses special rotating electrode, achieving highly efficient heating. The roller pitch adjustment enables optimum and external temperature distribution in the preformed resin.
Line Voltage: 3-Phase, 480 V (Specifications say 200V on the website)
* Picture 6 - Roller Electrode, Top View
* Picture 7 - Roller Electrode, Right Side View
* Picture 8 - Roller Electrode, Left Side View
* Picture 9 - Temperature Controller & Timer
* Picture 10 - Grid / Anode Meter
* Picture 11 - Start / Stop Buttons
* Picture 12 - Top Lid, Inside
* Picture 13 - Circuit Breakers & Power Controls
* Picture 14 - Inside Tube Cabinet
* Picture 15 - Serial Number Tag
