5000kg Iron Used Induction Electric Furnaces for Melting 5t 3500kw

Based on custormer's technical requirement, we are pleased to recommend a coreless induction melting furnace. This equipment meets the demand you set out on technical, technological and production requirement.

Our KGS series thyristor frequency-converters, GW series medium frequency coreless induction melting furnaces, GTR series medium frequency induction heating furnaces had been awarded "Xi An Branded Products" by Xi'An People Government.  Among all induction furnace manufacturers in Xi'An, we are the only manufacturer showered with this honor. Our products are manufactured under the ISO 9000 Guidelines, and have been awarded with six patent rights.

Other unique characteristics and advantages of our products are:

1.  With eighteen years experience in the research, design and production of medium frequency induction heating system, our products are built from the best tested design concept, ensuring logical coupling of all parameters and design experiences.
2.  We use high quality raw materials, critical parts and components are imported products or from local Joint Ventured manufacturers, skilled and tight quality control help guarantee the quality of our products.
4.  Low system energy consumption and failure rate, long life, ease of operation and maintenance coupled with low operational cost and the best equipment-performance rating makes the purchase of our products the best investment return project for the end user.
5.  Our sales and service personals are courteous and professional. Prompt,caring and attentive services is what you get when you buy Boda's equipment.  We adhere to our motto "We shall be friend forever once we hold hands", and work whole heartedly for the customers.  



Customer Case:

Proposal for Medium Frequency Coreless Induction Melting Furnace

PART 1
Equipment supplied :

PART 2
Specification Table:
 

PART 3
Introduction of External Steel Casing MF Induction Melting Furnace:


Furnace Rack: Furnace rack composes moving part and fixed part. Mobile part of the rack is used for installing induction coil and magnetic yoke. The rack is constructed from welded steel sections and plates, it employs frame construction to facilitate servicing and releasing heat. Furnace cover is on top of the mobile rack, it is opened and closed manually. There is an inspection hole on top of the cover. Fixed rack is mounted onto the floor foundation so as to take up the load of the mobile rack.  There are tilt-able rotating shaft and retractable connector on top of the fixed rack so that the mobile rack can rotate 95°forward when worked on by the hydraulic cylinder of the rotating furnace.

Manufacturing techniques of Induction Coil: Only tempered T2 square oxygen-free copper tubes are used. Extension connector is not allowed, coiled inductor must be acid cleansed, detergent wash, baked dry, paint soaked, thoroughly dried to complete the first phase of manufacturing. The complete coil is tested for hydraulic leakage at 1.5 times the normal water pressure (5MPa) for 5 minutes to ensure leak free prior to assembly. Copper tube cooling water coils are installed on top and bottom of the induction coil to prolong the lifespan of the insulation so that the insulation material is axially heated uniformly.

We set up rigid technical requirement on the manufacturing of induction coils: the following sequence must be adhered to; Coiling→Correction→Acid Cleansing→Purifying→Paint Soaking→Lamination of mica strips(manually) →Coiling with silica strips(manually) →Paint soaked→Detergent wahsed→Baked dry→Air dry etc. The complete coil is tested for hydraulic leakage under 1.5 times the normal water pressure (5MPa) for 5 minutes to ensure leak free prior to assembly.

Magnetic Yoke: High magnetic conduction cold rolled silicon steel plate are used for manufacturing. The yoke employs shape conformation structure, its inner curved surface curvature should follow the shape of the external curvature so that the magnetic yoke can stick closely onto the exterior of the induction coil. This helps in  maximizing the restraint on the spread of external magnetic field as well as within the induction coil in order to reduce the external magnetic path's resistance.

Water Distribution Group: The water distributor separates the cooling water into various path, separate furnace cooling circuits and water cooled cable, and re-collects these water, sending to the cooling tower for recirculation. Alarm gauge display unit is installed on the water distributor to monitor the cooling water pressure, it send out alarm signal to stop the inverter automatically when the cooling water pressure is low or the water temperature is higher than safe limit.

Water-cooled Cable:  The water cooled cable connector is manufactured with cold forging technique to pressure set with twisted copper wire. This method produces rigid connection with low contact resistance, while avoiding damage to copper wire. The single connection of connector and copper wire withstands more than 8 tons pulling power. The external jacket tubing utilizes special fire resistance rubber hose which is not easily burnt while exhibiting good mechanical strength. It can withstand water pressure of 0.45MPa without leakage nor rupture.

Crucible Mould: Each furnace body is supplied with a set of crucible mould which is used for construction of furnace.

Hydraulic Pump Station: Hydraulic pump station includes the furnace tilting platform. It supplies power for tilting furnace cylinder and rotation of furnace top cover. The pumping station rated working pressure is 9 MPa, the medium being hydraulic oil.  Tilting furnace operation platform is used to control the tilting and lowering of furnace body, as well as the lifting and rotation of the furnace cover.  It employs hand operate valve to maintain stable shock free movement. All hydraulic parts are made by the best Chinese manufacturers.

Furnace Leak Alarm: This control system is equipped with special earth leak type furnace insulation thickness detector.  Electrode probe is connected directly between induction coil and earth electrode.  There is no need for stainless steel grid inside the furnace insulation. Its working principle is based on the magnitude of the leaked current between induction coil and furnace molten metal to determine the condition of the furnace insulation since the leaked current increases as it get thinner. The insulation thickness probe's current alarm can be regulated; suitable alarm current level is set for furnace of different capacity and varying metal put in for melting. However, the insulation thickness alarm is not 100% fool proof, it is also used to provide reference for judging the furnace insulation thickness.

Furnace Refractory Ramming: Furnace insulation lifespan depends on the technical competence of the workman., the manufacturing technique used and the melting material. In China, furnace insulation generally has lifespan of 50 melts for cast steel and cast iron.
 

The Electric Machinery

Small indution melting furnace will be packed by standard plywood case for exporting ;Suppose your order is of big valumn or 1pc furnace with large capacity, the products will be delivered by 20GP or 40GP container. Top open container is optional as well.

On-site Factory Calibration, Test Run, Customer's site Hot Run Calibration and Necessary Operation Training

The equipment installation and calibration shall be instructed by the supplier's personals at the buyer site. If the buyer's factory is outside China, the equipment supplier's engineers/personals cost of traveling, transport, lodging, food and living compensation shall be the buyer's responsibility.
Acceptance of equipment shall be initiated by the supplier and acknowledged by the buyer to be carried out at the production line in accordance with the Acceptance Guidelines: Once the requirement stipulated in the Acceptance Guidelines met the technical condition and the relevant national standard, both sides shall accept and sign the Acceptance Letter.
The supplier shall provide training for the buyer's maintenance personal (those with professional basics), and make sure the personals can operate and maintain the equipment.
NOTE: The equipment description above provides general information. The required equipment performance characteristic shall be based on the final details agreed specifically in the signed contract.