Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf https://dw-inductionheater.com/research-and-design-on-igbt-induction-heating-power-supply.html?feed_id=219586&_unique_id=64b829c1ba9ed

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life.

Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed......



Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life.

Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed......



Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

Research and Design on IGBT Induction Heating Power Supply

Research and Design on IGBT Induction Heating Power Supply

Introduction

Induction heating technology having the advantage which traditional methods don’t have, such as high heating efficiency, high speed, controllable and easy to realize automation, is an advanced heating technology, and thus it has a wide range of application in the national economy and social life. Parallel medium frequency induction heating equipment (1~10kHz) has the advantages such as [0]low requirement on capacity of the power devices, easy to be paralleled to expand capacity, high adaptability to load and so on, so an increasing number of applications is received in induction heating power supply. Emerged in the early 80s, the entire control of power electronic semiconductor devices IGBT, with its high-speed, high input impedance, easy to drive, low on-state voltage drop and other outstanding features, has now a wide range of applications over the IF and VHF fields, and let the induction heating technology has a new leap [1] [2] .The research on the induction heating power supply has been deepening in China. With the object of 100 kW / 8 kHz shunt induction heating power supply, the key technologies of the development of medium frequency induction heating power supply will be discussed as followed...... Research-and-Design-on-IGBT-Induction-Heating-Power-Supply.pdf

MFS medium frequency heating systems

medium frequency induction heating systems and heating power supplies

Medium frequency induction heating systems (MFS series) are acetized by frequency range 500Hz～10KHz and power100～1500KW，they are mainly used for penetrated  heating, such as rod heating for shaping, melting, fitting and preheat for welding. Due to its wide frequency range, satisfied heating effect is easily achieved by design to considerate all factors such as penetrating desire, heating efficiency, working noise, magnetic stirring force and so on. In MFS medium frequency machines，parallel oscillating structure is used . IGBT module power components and our fourth generation inverting control technologies are applied to ensure high quality and reliability. Fully protection is adopted such as over current protection, water fail protection, over temperature protection, over voltage protection, short circuit protection and phase fail protection.  When working, output current, output voltage , oscillating frequency and output power are all displayed on the operating panel to help in the design of the coil and adjust of the machine. According to different usage, two main structures are used: (1) structure 1 ：MF generator + capacitor + coil This structure is adopted often in many uses, such as rod induction heating machine and melting machine.  This structure is simple, low lost and high efficient in heating. In this structure, usually  3 to 15 meters copper tube is needed to make the coil;  voltage of the coil  is high to 550V, and not isolated to the power supply system, so coil must be insulated properly to ensure the safety of operators. （2）structure 2：MF generator + cap + transformer + coil This structure is also used often, such as melting in vacuum, medium frequency induction hardening machine and so on.   Through the design of transformer ratio,  output current and voltage can be controlled to satisfy different heating desire. In this structure,  coil is safe for operators,  coil tube can exposed directly with out insulation.  Coil is easy to make with only a few turns. Of course, transformer will increase the cost and consumption the machine. Specifications

Models	Rated output power	Frequency rage	Input current	Input voltage	Duty cycle	Water flow	weight	Dimension
MFS-100	100KW	0.5-10KHz	160A	3phase 380V 50Hz	100%	10-20m³/h	175KG	800x650x1800mm
MFS-160	160KW	0.5-10KHz	250A			10-20m³/h	180KG	800x 650 x 1800mm
MFS-200	200KW	0.5-10KHz	310A			10-20m³/h	180KG	800x 650 x 1800mm
MFS-250	250KW	0.5-10KHz	380A			10-20m³/h	192KG	800x 650 x 1800mm
MFS-300	300KW	0.5-8KHz	460A			25-35m³/h	198KG	800x 650 x 1800mm
MFS-400	400KW	0.5-8KHz	610A			25-35m³/h	225KG	800x 650 x 1800mm
MFS-500	500KW	0.5-8KHz	760A			25-35m³/h	350KG	1500 x 800 x 2000mm
MFS-600	600KW	0.5-8KHz	920A			25-35m³/h	360KG	1500 x 800 x 2000mm
MFS-750	750KW	0.5-6KHz	1150A			50-60m³/h	380KG	1500 x 800 x 2000mm
MFS-800	800KW	0.5-6KHz	1300A			50-60m³/h	390KG	1500 x 800 x 2000mm

Main characteristics

• Voltage feedback design and adopt IGBT based LC series resonance circuit .
• IGBT inversion technology ,high energy conversion over 97.5% .
• Energy saving 30%up compared with SCR technology. In series resonance circuit, induction coil with high voltage and low current, so energy loss is very low. Soft switch technology applied then switch loss is very low.
• It can be started up 100% under any condition.
• 100% duty cycle , 24hours continuous working ability at maximum power.
• Less harmonic current and high power factor. Power factor always remaining 0.95 above during machine running.
• The frequency tracking automatically technology enables power factor to remaining high level throughout heating process.
• Good reliability, IGBT is a self turn-off transistor that ensures inversion with success and takes protection instantly; IGBT used from infineon company, world-renowned manufacturer.
• Easy to operate and maintain, IGBT MF induction generator is easy to prevent and maintain due to its simple circuit structure. It has perfect protection.

Options

• A range of heating furnace, customized different type of induction heating furnace according customer’s requires.
• Infarared sensor.
• Temperature controller.
• CNC or PLC controlled mechanical fixture for hardening application.
• Water cooling system.
• Pneumatic rod feeder.
• Customized whole automatic heating system.

Main applications

• Hot Forging/forming for large workpiece.
• Surface hardening for large part.
• Preheating of pipe bending.
• Annealing of pipe welding.
• Melting of copper aluminum and so on.
• Shrink-fit of sleeve of roller.

magnetic induction heating system

IGBT magnetic induction heating system

Main characteristics:

• IGBT module and inverting technologies, better performance ,higher reliability an lower maintenance cost;
• 100% duty cycle, continuous working is allowed at maximum power output;
• constant current or constant power status can be selected accordingly to achieve higher heating efficiency;
• display of heating power and heating current and oscillating frequency;
• multi-display functions, with displays of over current, over voltage, water failure, phase failure and unfit lad and so on, machine can be protected from destroys and machines can be repaired easily.
• simple to install, installation can be done by unprofessional person very easily, connection water and power can be finished in a few minutes.
• light weight, small size.
• different shape and size of induction heating coil can be changed easily to heat different parts.
• advantages of the model with timer: the power and the operating time of the heating period and retain period can be preset respectively, to realize a simple heating curve, this model is suggested to use for batch production to improve the repeatability.
• the separated models are designed to fit the dirty surroundings, the generator can be put in a clean space to increase the reliability; with the small size and light weight of the separated transformer, it is convenient to use in the production line and easily assembled inside the machinery or moved mechanism.

Series	Model		Input power Max	Input current Max	Oscillate frequency	Input Voltage	Duty cycle
M.F .	DW-MF-15 Induction Generator		15KW	23A	1KHz-20KHz According to the application	3phases380V±10%	100%
	DW-MF-25 Induction Generator		25KW	36A
	DW-MF-35Induction Generator		35KW	51A
	DW-MF-45 Induction Generator		45KW	68A
	DW-MF-70 Induction Generator		70KW	105A
	DW-MF-90 Induction Generator		90KW	135A
	DW-MF-110 Induction Generator		110KW	170A
	DW-MF-160 Induction Generator		160KW	240A
	DW-MF-300 Induction Generator		300KW	400A
	DW-MF-45 Induction Heating Rod Forging Furnace		45KW	68A	1KHz-20KHz	3phases380V±10%	100%
	DW-MF-70 Induction Heating Rod Forging Furnace		70KW	105A
	DW-MF-90 Induction Heating Rod Forging Furnace		90KW	135A
	DW-MF-110 Induction Heating Rod Forging Furnace		110KW	170A
	DW-MF-160 Induction Heating Rod Forging Furnace		160KW	240A
	DW-MF-15   Induction Melting Furnace		15KW	23A	1K-20KHz	3phases380V±10%	100%
	DW-MF-25   Induction Melting Furnace		25KW	36A
	DW-MF-35   Induction Melting Furnace		35KW	51A
	DW-MF-45   Induction Melting Furnace		45KW	68A
	DW-MF-70   Induction Melting Furnace		70KW	105A
	DW-MF-90   Induction Melting Furnace		90KW	135A
	DW-MF-110 Induction Melting Furnace		110KW	170A
	DW-MF-160 Induction Melting Furnace		160KW	240A
	DW-MF-110 Induction Hardening Equipment		110KW	170A	1K-8KHz	3phases380V±10%	100%
	DW-MF-160Induction Hardening Equipment		160KW	240A
H.F .	DW-HF-15 Series	DW-HF-15KW	15KVA	32A	30-100KHz	Single phase 220V	80%
	DW-HF-25 Series	DW-HF-25KW-A	25KVA	23A	20K-80KHz	3phases380V±10%	100%
		DW-HF-25KW-B
	DW-HF-35 Series	DW-HF-35KW-B	35KVA	51A
	DW-HF-45 Series	DW-HF-45KW-B	45KVA	68A
	DW-HF-60 Series	DW-HF-60KW-B	60KVA	105A
	DW-HF-80 Series	DW-HF-80KW-B	80KVA	130A
	DW-HF-90 Series	DW-HF-90KW-B	90KVA	160A
	DW-HF-120 Series	DW-HF-120KW-B	120KVA	200A
	DW-HF-160 Series	DW-HF-160KW-B	160KVA	260A
U.H . F .	DW-UHF-4.5KW		4.5KW	20A	1.1-2.0MHz	Single phase220V ±10%	100%
	DW-UHF-6.0KW		6.0KW	28A
	DW-UHF-10KW		10KW	15A	100-500KHz	3phases380V±10%	100%
	DW-UHF-20KW		20KW	30A	50-250KHz
	DW-UHF-30KW		30KW	45A	50-200KHz
	DW-UHF-40KW		40KW	60A	50-200KHz
	DW-UHF-60KW		60KW	90A	50-150KHz

Applications 1.Heating (hot forging, hot fitting and smelting) Induction Hot forging aims to fabricate the work pieces of certain temperature (different materials require different temperatures) into other shapes through forging press with the help of punch press, forging machine or other equipments, for instances, hot extrusion of watch case, watch flan, handle, mold accessory, kitchen and table ware, art ware, standard part, fastener, fabricated mechanical part, bronze lock, rivet, steel pin and pin. Hot fitting refers to the connection of different metals or metals with nonmetals through the heating based on the principle of hot expansion or hot smelting, for instances, embedded welding of copper core of computer radiator with aluminum sheet and speaker web, compound of steel and plastic tube, sealing of aluminum foil (tooth paste peel), motor rotor and sealing of tubular electric heating element. Smelting mainly aims to melt the metal into liquid by using the high temperature, which is mainly applicable to the smelting of iron, steel, copper, aluminum, zinc as well as various noble metals. 2.Heat Treatment (surface quench) Quench for various hardware and tools, such as plier, wrench, hammer, ax, screwing tools and shear (orchard shear). Quench for various automobile and motorcycle fittings, such as crankshaft,   connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi drive shaft, small shaft and fork.Various electric tools, such as gear and axes. Quench for machine tools, such as lathe deck and guide rail. Quench for various hardware metal parts and machined parts, such as shaft, gear (chain wheel), cam, chuck and clamp etc. Quench for hardware molds, such as small-size mold, mold accessory and inner hole of mold. 3.Welding (braze welding, silver soldering and brazing) Welding of various hardware cutting tools, such as diamond tool, abrasive tool, drilling tool, alloy saw blade, hard alloy cutter, milling cutter, reamer, planning tool and solid center bit. Welding of various hardware mechanical gadget: Silver soldering and induction brazing of metals of the same variety or different varieties, such as hardware toilet and kitchen products, refrigerating copper fitting, lamp decoration fitting, precision mold fitting, hardware handle, eggbeater, alloy steel and steel, steel and copper as well as copper and copper. Compound pot bottom welding is mainly applicable to the braze welding of circular, square as well as other irregular plain pot bottom. It is also applicable to plain braze welding of other metals. Welding of heating disc of electric hot-water kettle mainly refers to the braze welding of stainless steel flat base, aluminum sheet and tubular electric heating elements of various forms. 3.Annealing (tempering and modulation) Annealing of various stainless steel products, such as stainless steel basin, annealed and extruded can, annealed folded edge, annealed sink, stainless steel tube, tableware and cup. Annealing of various other metal work pieces, such as golf ball head, cue, brass lock, hardware copper fitting, kitchen knife handle, blade, aluminum pan, aluminum pail, aluminum radiator and various aluminum products.

Induction Heating Principle

Frequency conversion electromagnetic induction heating or induction heating for short is a method for heating metal materials by converting power frequency power supply into that of specific range based on the principle of electromagnetic induction. It is mainly applicable to the metal hot working, heat treatment, welding and melting. This type of heating technique is also applicable to packing industry (such as sealing of aluminum foil used in medicine and food industry), semiconductor material (such as extruded monocrystalline silicon and heated affixing metal parts for auto glass). Basic of induction heating system include induction coil, AC power source and work pieces. Induction coil can be fabricated into different shapes as per different heated objects. The coil is connected with the power source providing alternating current for coil. The alternating current possessed by the coil can create a alternating magnetic field passing through the work pieces to produce eddy flow as required by heating. Advantages of manetic induction heating system

1. Fast heating: the minimum rate of heating is less than 1 second (rate of heating is available for adjustment and control).
2. Wide coverage of heating: it can be used to heat various metal parts (replace removable induction coil as per different operating switches).
3. Easy installation: it can be used once it is connected with power source, induction coil as well as water supply pipe and rising pipe; it is small in size and light in weight.
4. Easy operation: you can learn to operate it within several minutes.
5. Fast start-up: it can be started to perform heating operation on condition that water and power supply is available.
6. Low power consumption: As compared with conventional vacuum tube high frequency equipments, it can save the power by approximately 70%. The smaller the size of the work piece is, the lower power consumption would be.
7. High effectiveness:it has such features as uniform heating (it is applicable to adjust the spacing of the induction coil to ensure the appropriate temperature as required by each part of work piece), fast warming and limited oxic horizon, and can guard against any waste after annealing.
8. Comprehensive protection:it has such functions as overpressure, over-current, overheat and water shortage alarm indications as well as automatic control and protection.
9. Controllable temperature: it is applicable to control the temperature for heating work pieces as per the preset heating time, and thereby control the heating temperature at a certain technical point.
10. Comprehensive full load design: it can work continuously for 24 hours.
11. Small size and light weight: it has a weight of only several dozens of kilograms, of which, the limited floor space can effectively save the workshop space.
12. Elimination of high voltage: it requires no step-up transformer which may produce approximately ten thousand voltage, and thus can ensure the maximum safety.

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KGPS Induction Generator Power Supply

Production Description:

1)KGPS Medium Frequency Furnace Power Supply

2) Wide frequency scope

3)Constant capacity control

4)Protections of over currency, overvoltage, under currency, under voltage, lack of water, default phase

5)Frequency-sweep zero voltage start

Model	Power Input		Power Output		Usage
	Inlet line Voltage (V),3 phases or 6 phases,50Hz	Inlet Currency(A)	Frequency	Power Rate(KW)
KGPS-200	380	320	1--8	200	Surface Hardening Forging Melting Heating Treatment Heating
KGPS-250	380	400	1--8	250
KGPS-300	380	480	1--8	300
KGPS-400	380	640	1--4	400
KGPS-500	380	800	0.5--2.5	500
KGPS-600	380	1000	0.5-2.5	600
KGPS-750	380	1200	0.5--2.5	750
KGPS-800	380/660	1300/730	0.5--1	800
KGPS-1000	660	920	0.5--1	1000
KGPS-1200	660	1100	0.5--1	1200
KGPS-1500	660/750	1400/600	0.5--1	1500

3.Product usage:

Use in Medium Frequency Melting, Heating, and hardening Induction Furnace

4. Package: Plywood cases and nude

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Induction Heating Power Supply

HLQ Induction Heating Machine Co manufactures a wide range of induction heating power supplies including high frequency power series,medium frequency power series,ultrahigh frequency heater series for heating,brazing,forging,melting,bonding,welding,hardening and heating treatment surface applications and for replacement. Main Characteristics：

• IGBT module and soft switching inverting technologies are as in the production of the generator,higher reliability can be do.
• Small and portable ,compared with SCR controlled machine only 1/10 working space is needed. High efficiency to save energy,high efficiency and power far can be maintained
• The generator is adaptable in a large frequency range from 1KHz to 2.0MHz,installation can be done very easily according to our manual.
• 100%duty cycle ,continuous working ability at maximum power.
• Constant power or constant voltage control mode.
• Display of output power,output frequency,and output voltage.

Series	Model		Input power Max	Input current Max	Oscillate frequency	Input Voltage	Duty cycle
M.F .	DW-MF-15 Induction Generator		15KW	23A	1KHz-20KHz According to the application	3phases380V±10%	100%
	DW-MF-25 Induction Generator		25KW	36A
	DW-MF-35Induction Generator		35KW	51A
	DW-MF-45 Induction Generator		45KW	68A
	DW-MF-70 Induction Generator		70KW	105A
	DW-MF-90 Induction Generator		90KW	135A
	DW-MF-110 Induction Generator		110KW	170A
	DW-MF-160 Induction Generator		160KW	240A
	DW-MF-300 Induction Generator		300KW	400A
	DW-MF-45 Induction Heating Rod Forging Furnace		45KW	68A	1KHz-20KHz	3phases380V±10%	100%
	DW-MF-70 Induction Heating Rod Forging Furnace		70KW	105A
	DW-MF-90 Induction Heating Rod Forging Furnace		90KW	135A
	DW-MF-110 Induction Heating Rod Forging Furnace		110KW	170A
	DW-MF-160 Induction Heating Rod Forging Furnace		160KW	240A
	DW-MF-15   Induction Melting Furnace		15KW	23A	1K-20KHz	3phases380V±10%	100%
	DW-MF-25   Induction Melting Furnace		25KW	36A
	DW-MF-35   Induction Melting Furnace		35KW	51A
	DW-MF-45   Induction Melting Furnace		45KW	68A
	DW-MF-70   Induction Melting Furnace		70KW	105A
	DW-MF-90   Induction Melting Furnace		90KW	135A
	DW-MF-110 Induction Melting Furnace		110KW	170A
	DW-MF-160 Induction Melting Furnace		160KW	240A
	DW-MF-110 Induction Hardening Equipment		110KW	170A	1K-8KHz	3phases380V±10%	100%
	DW-MF-160Induction Hardening Equipment		160KW	240A
H.F .	DW-HF-15 Series	DW-HF-15KW	15KVA	32A	30-100KHz	Single phase 220V	80%
	DW-HF-25 Series	DW-HF-25KW-A	25KVA	23A	20K-80KHz	3phases380V±10%	100%
		DW-HF-25KW-B
	DW-HF-35 Series	DW-HF-35KW-B	35KVA	51A
	DW-HF-45 Series	DW-HF-45KW-B	45KVA	68A
	DW-HF-60 Series	DW-HF-60KW-B	60KVA	105A
	DW-HF-80 Series	DW-HF-80KW-B	80KVA	130A
	DW-HF-90 Series	DW-HF-90KW-B	90KVA	160A
	DW-HF-120 Series	DW-HF-120KW-B	120KVA	200A
	DW-HF-160 Series	DW-HF-160KW-B	160KVA	260A
U.H . F .	DW-UHF-4.5KW		4.5KW	20A	1.1-2.0MHz	Single phase220V ±10%	100%
	DW-UHF-6.0KW		6.0KW	28A
	DW-UHF-10KW		10KW	15A	100-500KHz	3phases380V±10%	100%
	DW-UHF-20KW		20KW	30A	50-250KHz
	DW-UHF-30KW		30KW	45A	50-200KHz
	DW-UHF-40KW		40KW	60A	50-200KHz
	DW-UHF-60KW		60KW	90A	50-150KHz

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