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Induction furnaces are divided into two categories: induction melting furnaces and induction heating equipment. The former is used for melting or heat preservation of materials, and the charge is finally in liquid state; the latter is used for heating materials, including uniform heating of the whole material, surface heating or local heating.
An induction furnace is an electric furnace that uses the induction electrothermal effect of the material to heat or melt the material. The main components of an induction furnace are sensors, furnace body, power supply, capacitors and control system.
In addition to heating or melting in the atmosphere, induction furnaces can also heat or melt in vacuum and protective atmospheres such as argon and neon to meet special quality requirements.
Induction furnaces have outstanding advantages in heat permeation or melting of soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals. Induction furnaces are usually divided into induction heating furnaces and melting furnaces.
The equipment consists of a 750KW intermediate frequency power cabinet for melting, a capacitor cabinet, two 1.0-ton steel shell induction furnaces, two 500 square meter water-cooled cables, a set of hydraulic tilting furnace devices, a tilting furnace operation console, a 900KVA rectifier transformer, a closed cooling tower, etc.
| Type | Induction furnace |
| Test report | Can provide |
| Core components | IIt consists of one KGPS800KW/1KHZ single rectifier parallel inverter intermediate frequency power supply, two 1.0t steel shell electric furnace bodies, one set of compensating capacitor banks, one set of hydraulic tilting furnace system, one set of water-cooled cables, etc. |
| Weight | 1T |
| Supply voltage | 10KV |
| Core selling points | Energy conservation |
| Provide after-sales service | Installation and training |
| Purpose | Melting furnace |
1.0 ton medium frequency induction melting furnace parameters
| Project | Unit | Parameters |
| Electric furnace parameters | ||
| Rated capacity | t | 1.0 |
| Lining thickness | mm | 90 |
| Inside the induction coil,φ | mm | 710 |
| Induction coil height | mm | 1015 |
| Working temperature | ºC | 1650 |
| Maximum temperature | ºC | 1700 |
| Electrical parameters | ||
| Transformer capacity | KVA | 900 |
| Transformer Primary voltage | KV | 10 |
| Transformer Secondary voltage | V | 660 |
| Medium frequency power supply rated power | KW | 750 |
| The maximum output voltage of the intermediate frequency power supply | V | 1300 |
| Coil voltage | V | 2600 |
| Rated operating frequency | Hz | 1000 |
| Power conversion efficiency | % | 96 |
| Startup success rate | % | 100 |
| Comprehensive parameters | ||
| Melting rate | per/ furnace | about 55 |
| Work noise | db | ≤75 |
| Hydraulic system | ||
| Hydraulic station capacity | L | 120 |
| Working pressure | MPa | 11 |
| Hydraulic medium | 46#anti-wear hydraulic oil | |
| Cooling water system | ||
| Flow rate | M3/h | 40 |
| Water supply pressure | MPa | 0.2~0.3 |
| Inlet water temperature | ºC | 5~35 |
| Outlet temperature | ºC | 35~55 |
1,Central induction melting furnace: Smelting and heat preservation of non-ferrous metals such as copper, aluminum, zinc and their alloys, cast iron, and heat preservation of molten iron and molten steel.
2,Centerless induction melting furnace: Smelting and heat preservation of steel, cast iron, copper, aluminum, magnesium, zinc and other non-ferrous metals and their alloys.
3,Vacuum induction melting furnace is used for smelting high temperature alloys, magnetic materials, electrical alloys, high strength steel, nuclear fuel uranium, etc.
4,Iron crucible furnace is used for smelting low melting point alloy;
5,High frequency furnace is mostly used for smelting precious metals;
6,Short coil furnace is used for heat preservation.
This technical solution is a series connected one electric two furnace configuration, suitable for melting steel materials. The intermediate frequency power supply is configured with 6 pulse 300KW/1KHZ. The complete equipment consists of a 315KVA 3-phase 6-pulse rectifier transformer, a KGPS300KW/1KHZ single rectifier parallel inverter intermediate frequency power supply, two 0.5t steel shell electric furnace bodies, a set of compensating capacitor banks, two sets of hydraulic tilting furnace systems, a set of water-cooled cables, a set of enclosed water cooling systems, etc.
The power rectifier transformer is used to reduce the high voltage 10KV to a suitable voltage of 380V for the intermediate frequency power supply. The intermediate frequency equipment adopts a dedicated rectifier transformer and oil immersed self cooling method.
The rectifier transformer adopts a 6-pulse form according to the rectification method of the intermediate frequency power supply.
| Electric furnace capacity(t) | Intermediate frequency power supply power(KW) | Transformer capacity(KVA) | Voltage combination | Connection group label | Impedance voltage(%) | |
| One side(KV) | Secondary side(V) | |||||
| 0.5 | 300 | 315 | 10 | 380 | Y,d11 | 6~8 |
The digital scanning starting trigger is adopted, and the circuit adopts advanced phase-locked loop frequency and phase detection technology, which can ensure the reliability of the entire system's tracking and locking circuit operation. At the same time, it has good anti-interference ability against the strong electromagnetic waves and interference signals emitted by the frequency dependent intermediate frequency electric furnace, ensuring the normal operation of the inverter system.
The control system adopts advanced technology circuits with dual closed loops of current and voltage, making it particularly stable and reliable throughout the entire operation process. It can be reliably and stably used in response to changes in the power grid, severe changes in loads, and impact changes.
2,Transport the equipment to the designated port according to customer requirements;
3,Transport according to customer requirements to the designated receiving equipment country and the corresponding factory.
Installation and debugging
The entire equipment is installed and debugged under the guidance of engineering engineers from SanRui Technology on site.
Equipment customization service scope
This includes full lifecycle services such as technical consulting, engineering design, engineering equipment EP, system integration, engineering general contracting, production and operation, component supply, and technology upgrades.
After-sale service
1) Based on the current situation of the user's production workshop, provide the complete set of equipment layout and basic design as soon as possible.
2) Provide users with all external parameters related to the device, including requirements for water, electricity, gas, etc., and assist users in selecting peripheral devices or materials.
3) Provide free technical training to users' operators and maintenance personnel to ensure that they are proficient in operating the equipment, and that maintenance personnel can conduct routine inspections of the equipment to identify the fault points and damaged components to be replaced. Responsible for free debugging and trial operation of the entire set of equipment.
4) The warranty period is one year, with lifetime paid service and maintenance.
5) Respond within 2 hours after receiving the user's repair request, indicate the attitude of handling the problem, and go to the user's site within 72 hours to handle the problem as soon as possible.
6) Due to a sudden malfunction of the user's device, production is extremely urgent, and it is impossible to handle it on our own, our company has an unconditional obligation to arrive at the site as soon as possible to handle the problem.
7) The entire equipment is installed and debugged on site under the guidance of our company's engineering and technical personnel.
