30KW Plastic Injection Molding Machine Electromagnetic Induction Heater
Principle of Electromagnetic Induction Plastic Injection Molding Heater:
Most of the metal is heated by the high-frequency magnetic field and uses this principle to pass the high-frequency current through the coil, so that the coil generates a high-frequency magnetic field, so that the metal rod in the coil is induced to generate heat. The electrical energy can be converted into metal thermal energy by the above process. During the whole process, the metal rod does not have any physical contact with the coil, and the energy conversion is completed by the magnetic field eddy current and the metal induction.
Advantages of electromagnetic induction plastic injection molding heater:
1.Energy saving and emission reduction (30-85%)
2.higher thermal efficiency
3.Reduced operating temperature
4.warm up fast
5'long service life
6.Maintenance is simple and convenient
What Advantages Does Electromagnetic Induction Heater Have Compared With Traditional Heaters?
| Advantage Comparison | ||
| Electromagnetic Induction Heater | Traditional Heater | |
| Heating Principles | Electromagnetic Induction | Heating the Resdistance Wire |
| Heated Part | Charging barrel is heated directly to get higher efficiency ,but the induction coil itself is not heated to guaratte longer using life | heater itself,then heat transfered to the charging barrel |
| Surface Temperature & Safety | Max. 60 Degree Centigrade,safe to touch by hands. | The same with your heating temperature, Dangerous to touch |
| Heating Rate | High Efficiency:save 50%-70%warming -up time | Low Efficiency:No time-saving |
| Energy Saving | Save 30-80% Power Consumption | No Saving |
| Temperature Control | High precision | Low Precision |
| Using life | 4-5year | 2-3year |
| Working Environment | Normal temperature for workers,easy and comfortable | Hot,especially for low latitude Area |
| Cost | Cost-effective,with30-80% energy-saving rate,it takes 6-10 months to recover the cost. The higher the rate is,the less time it takes. | Low |
Application of electromagnetic induction:
1.Plastic rubber industry: plastic film blowing machine, wire drawing machine, injection molding machine, granulator, rubber extruder, vulcanizing machine, cable production extruder, etc.;
2.Pharmaceutical and chemical industry: pharmaceutical infusion bags, plastic equipment production lines, liquid heating pipelines for the chemical industry;
3.Energy, food industry: heating of crude oil pipelines, food machinery, super freighters and other equipment that require electric heating;
4.Industrial high-power heating industry: machine for killing machine, reaction axe, steam generator (boiler);
5.Smelting heating industry: die casting furnace zinc alloy, aluminum alloy and other equipment;
6.Building materials industry: gas pipe production line, plastic pipe production line, PE plastic hard flat net, geonet net unit, automatic blow molding machine, PE honeycomb board production line, single and double wall corrugated pipe extrusion production line, composite air cushion film unit, PVC hard Tube, PP extrusion transparent sheet production line, extruded polystyrene foam tube, PE winding film unit;
7.high power commercial induction cooker movement;
8.Dry heating in printing equipment;
9.other similar industry heating;
Technical Parameters
|
Item |
Technical Parameters |
| rated power | Three-phase 30KW |
| Rated input current | 40-45(A) |
| Rated output current | 40-70(A) |
| Rated voltage frequency | AC 380V/50Hz |
| Voltage adaptation range | constant power output at 300 ~ 400V |
| Adapt to ambient temperature | -20ºC~50ºC |
| Adapt to environmental humidity | ≤95% |
| Power adjustment range | 20% ~ 100% stepless adjustment(That is: adjustment between 0.5 ~ 30KW) |
| Heat conversion efficiency | ≥95% |
| Effective power | ≥98%(Can be customized according to user needs) |
| working frequency | 5~40KHz |
| Main circuit structure | Full bridge series resonance |
| Control System | The DSP-based high-speed automatic phase-locking tracking control system |
| Application mode | Open application platform |
| monitor | Programmable digital display |
| start time | <1S |
| Instantaneous overcurrent protection time | ≤2US |
| Power overload protection | 130% instantaneous protection |
| Soft start mode | Fully electrically isolated soft start heating/stop mode |
|
RS485 communication |
Modbus RTU standard communication protocol |
| Support PID adjustment power | Identify 0-5V input voltage |
| Support 0 ~ 1000 ºC load temperature detection | Accuracy up to ± 1 ºC |
| Adaptive coil parameters | 10 square line, length 60m, inductance 250 ~ 300uH |
1, Connect the power supply voltage of the cooling fan, but connect the 220V power when the fan is 220V, and connect the 380V power when the fan is 380V
2, Connected with cooling fan 220V / 380V (depending on the user, generally 380V)
3, When the external cooling fan is DC 24V, this interface is a switch that controls the 24V fan to work or stop. The two ends of the interface are actually the normally closed contact points of the relay output on the motherboard.
4, Dual AC 24V power supply (choose 4 or 5 when making half-bridge)
5, Dual AC 24V power supply (choose 4 or 5 when making half-bridge)
6, Single AC 16V power supply
7, Power indicator (red)
8, Work indicator light, flashing during standby, and always on (green) during work
9, External indicator light, led to the LED interface outside the chassis
10, The soft start interface is connected to the R / s interface outside the chassis (can be set to open or close work through F-20, factory default close work, open stop status
11, Finely adjust the power potentiometer. When there is a large deviation in power, this potentiometer can be adjusted appropriately.
12, 32-bit high-speed DSP processor
13, Externally connected programmable operating display
14, Isolated RS485 communication interface
15, External load temperature detection interface 1, with an accuracy of ± 1 ° C (maximum 150 ° C) single-channel, default 1 is used to measure external working temperature
16, External load temperature detection interface 2, with an accuracy of ± 1 ° C (maximum 150 ° C)
17,Multi-function input interface (set by F-20) (1)10K input for external connection potentiometer can adjust the power range from 20% to 100% (2)Externally connected PID input (0 ~ 5V) input Do infrared thermometer or thermocouple conversion voltage 0 ~ 5V input to achieve the display temperature and control power size (up to 1000ºC can be measured and displayed)
18, Connect the high-frequency Mutual inductor and pay attention to the direction. If the direction is reversed, the power is very small
19, IGBT module drive (when doing half-bridge, choose 19, 20 or 23, 24)
20, IGBT module drive (when doing half-bridge, choose 19, 20 or 23, 24)
21, Connected to high voltage DC bus
22, IGBT temperature sensor interface
23, IGBT module drive (when doing half-bridge, choose 19, 20 or 23, 24)
24, IGBT module drive (when doing half-bridge, choose 19, 20 or 23, 24)
25, Connected to high voltage DC bus
26,RS485 communication interface, connect A ,B
27, Externally connected K-type thermocouple
28, Externally connected 12V relay drives other required loads, synchronized with the fan start/stop of the machine
