COATING FORMING FURNACES AND DEVICES ON THE BASIS OF POWDER COATING
FUNCTIONAL FURNACES
JSC "ELEM'" machine-building plant designs and produces:
convection, thermo - radiation, dead-end and passage furnaces with working capacity
ranged 1,7 -50m2 designed for:
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forming of coatings (melting and polymerization of the powder paint.
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parts' drying from humidity
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parts' pre-heating when dealing with thermo-plastic powder paints
"ELEM" also produces UF-polymerization devices designed for the forming of coatings on the basis of powder paints hardened by UF- radiation.
"ELEM" furnaces are used as components of automatic paint conveyors, coating surface preparation, shops and sections of powder manual painting.
"ELEM" furnaces are designed to work on electricity, gas and fluid fuel.
"ELEM" control units ensure:
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Automatic temperature level maintenance
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Digital temperature level indication
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Count-down and digital indication of processing time ( for furnaces engaged in tact mode)
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Production cycle end sound-and-light indication.
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Malfunction indication.
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Compatibility of furnace control unit with conveyor's control system ( for furnaces integrated in production lines)
All furnaces are equipped with double circuit overheat protection device - mechanical and electronic.
Special advantage of "ELEM" furnaces is their low maintenance costs achieved owing to original design solutions, established management system based on more, than 30 years experience in designing and production of furnaces for special applications.
Convection furnaces for melting and polymerization
"ELEM" convection furnaces for melting and polymerization are functionally designed for forming of coatings on the basis of thermo-reactive and thermo-plastic powder paints. The furnaces ensure parts' heating by means of hot air and maintenance of the necessary level of temperature within the set time. Accuracy of temperature level maintenance, its uniformity in the furnace's area make it possible to achieve best results of the coating forming process.
Electric convection melting and polymerization "ELEM" furnaces
are of modular self-bearing design featuring heat insulation made out of fireproof materials, furnace modules are integrated with electric heating devices comprising circulation fans. Control unit is mounted directly on furnace housing or separate (for furnaces being part of conveyers).
Furnaces' design ensures:
Possibility to mount running ways of the transportation system (conveyor) within the furnace Equipment with slide (drive) or wide open door type
Module consequent connection option to obtain required furnace extension (up to 15 meter long).
Convection melting and polymerization furnaces running on hard fuel
Feature self-bearing design made out of "sandwich" type panels insulated with fireproof low-inertial materials. They also have heating device comprising fire-chamber, heat-exchanger and fan, incl.: burners, sensors and system of safe and saving burning mode to ensure indirect heating. The heating device is connected with the furnace housing by heat insulated air pipes with connection flanges for smoke removal system. The control unit is mounted directly on the housing of the furnace or separately ( for furnaces within conveyors).
Some technical data of "ELEM" electric coating forming furnaces:
| Power supply, V |
380 |
380 |
380 |
| Frequence, Hz |
50 |
50 |
50 |
| Installed power of one Module, kWt |
30 |
30 |
30 |
| Furnace inner opening dimension, mm Height width |
1860 650 |
1860 1100 |
2000 1100 |
| Module length, mm Tambour length, mm |
1500 500 |
1500 500 |
1500 500 |
| Temperature level, C |
50-250 |
| Temperature gradient of the working volume, C |
+-2,5 |
| Regulation Law |
PID |
"ELEM" furnaces running on fluid fuel
| Power supply, V |
220 |
220 |
| Frequence, Hz |
50 |
50 |
| Installed power, kWt Minimal Maximal |
47 119 |
47 119 |
| Fuel consumption rate, kg/hr Minimal Maximal |
4 10 |
4 10 |
| Overall dimensions of Furnace housing, mm Length Width Height |
4200 1440 2790 |
4200 1440 2930 |
| Working capacity, mm Length Width Height |
4000 1100 1860 |
4000 1100 2000 |
| Burner type |
RG2 |
Convection furnace for drying parts from moisture
present separate design of convection furnaces for melting and polymerization
Their main advantages are:
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maximal temperature in working area (150C)
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air circulation speed (drying furnaces present more high parameter)
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air discharge rate ( more with drying furnaces)
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air curtain option on inlet and outlet of the furnace (for conveyors )
In all other respects: design, type of energy used, controlling devices - these furnaces are analog of melting and polymerization furnaces. Design of all furnaces ensures:
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mounting option inside furnace transportation ways (conveyor),
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slide (drive) or wide-open doors
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air curtains on furnace outlet (for conveyors)
Convection melting and polymerization furnaces running on gas
feature self-bearing design made out of "sandwich" type panels with insulation of fireproof low-inertial materials.
They also have heating device comprising fire-chamber, heat-exchanger and fan, incl. : burners, sensors and system of safe and saving burning mode to ensure indirect heating.
Heating device is connected with the furnace housing by heat insulated air pipes and features connection flanges for smoke absorbing system.
Control unit is mounted directly on the housing of the furnace.
Thermo- radiation furnaces
are designed for the coating forming on the base of powder paints
Heating of processing parts is achieved by means UF-radiation
Due to direct radiation energy transfer to the processing part without energy carrier (hot air) the process of the part's heating is considerably higher compared to the same of the convection furnaces. The same refers to the coefficient of efficiency being higher owing reduction of the heating time.
Thermo- radiation furnaces ensure specific radiation power of 22kWt/v2, feature self-bearing design, the source of IR radiation are special IR radiation rod emitters.
Design of the furnaces ensures:
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exhibiting parts to processing from both sides at the same time
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parts' transportation thorough the furnace on conveyor
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furnace extension length by means of connecting modules
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parts' temperature measurement by means of pyrometer control.
"ELEM" also produces thermo-radiation furnaces of other types, including short-waved.
UF devices for polymerization of coatings
The existing powder paint method for painting of themo-sensible parts and materials - plastics, MDF along with massive metallic parts and electric machines in assembly (electric motors) demands following consequence of operations:
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Powder spraying paint by one of the known methods
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Powder paint melting in convection or thermo-radiation furnace ( heating combination is possible) up to approximately 110C.
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Polymerization of the coating by UF radiation within some seconds.
For polymerization of coatings "ELEM" plant produces UF -radiation devices, that are modules with the powerful UF radiation lamps installed inside of the modules.
Device design ensures:
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exhibiting parts to radiation from both sides at the same time
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parts' transportation option thorough the chamber on conveyor
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radiation screening to keep it within the device limits
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device ventilation
Control unit of UF-radiation device comprises:
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