HIGH-FLUX INDUCTION HEATING EQUIPMENT FOR METAL PRODUCT MANUFACTURING AND PROCESSING

To date, induction heating has only rarely been used for the re-heating of metals in mass production applications due to the low efficiency of energy transfer to the metals during the non-magnetic heating phase. Our experience in high-intensity magnetic fields generated by low-loss conductive composite multi-layer windings has enabled the development of a new high-flux magnetic induction heating technology (CELINE) which represents a real technological leap forward in respect to the current industry processing techniques.
Our new technology is characterized by the following:

• Power densities in the range of 4 to 6 MW/m, up to 6 times that of conventional inductors.
  

• Electrical efficiency of 85% above the Curie point instead of the usual 50 to 60% realized by conventional inductors, this represents substantial savings in energy costs.

• Much smaller floor space requirements than conventional induction or furnace heating equipment.

• Robust thermal and mechanical protection devices designed to reduce maintenance costs when operating under extreme conditions.

INDUCTION HEATING EQUIPMENT FOR SURFACE TREATMENT

Surface treatment refers to various heating operations such as the following:

• Degreasing, pickling & drying
  

• Galvanizing & tinning

• Curing of paints, varnishes & plasification
  

• Annealing
  

• Plating

This heating technique realizes the following benefits:

• Better adherence to the substance applied to the metal
  

• Higher quality surface appearance
  

• Excellent reproducibility which is important when drying colored materials
  

• Highly flexible operation by means of easy selection of processing temperatures
  

• Compact and instant heat on off capability controls thermal pollution in the working environment

INDUCTION HEATING EQUIPMENT FOR SEMI-SOLID FORMING

Semi-solid forming consists of injecting a metal under high pressure, which has been heated until it attains a semi-solid/semi-liquid state. This process has the following advantages:

• Elimination of porosity in molded parts that is turbulence is eliminated.
  

• Adaptable to all types of injection molding machines.
  

• Transfer of ingots in a horizontal position without distortion and material wastage.
  

• Energy savings, since it is sufficient to heat instead of melting.

• Rapid heating.

INDUCTION HEATING EQUIPMENT FOR BRAZING

Induction heating is widely used for brazing applications. The reason for its popularity is heat can be applied to the surface and the filler material very precisely. By having the capability of applying heat to a precise area the overall processing time is reduced significantly form what is experienced with a furnace or direct flame heating. Oxidation along with structural or chemical changes in the treated parts is reduced to a minimum. Substantial savings in energy costs are realized for medium and large production rates.

Power requirements are generally low, e.g.: from 10 to 100 kW. Our portable transistorized power supplies are ideal for many brazing applications. Various types of inductors can be used such as, external, internal multi-turn, pancake, hairpin, proximity inductors, etc.

INDUCTION HEATING EQUIPMENT FOR WELDING

One of the main induction heating equipment for welding is for producing tubes and other closed profiles made of steel, aluminum or copper. Some advantages of the induction heating equipment used for this process are high production rates, quality, regularity of the weld, welding strips without first pickling, and lower power consumption.

INDUCTION HEATING EQUIPMENT FOR HEAT TREATMENT

Induction heating allows for both surface and core treatment of metals using a wide range of induction heating equipment possibilities. The best known use for induction heating equipment is for the heat treatment of metals. There are few heat treating techniques that allow for a wide range of processes such as selected or continuous surface hardening, through hardening, tempering, annealing, normalizing and structure refinement.
The selectivity and speed of induction heating equipment combined with effective power transfer allows for more conservative use of energy in the heat treating process. In addition to the considerable advantage of reduced energy and associated costs in using induction heating equipment the following is realized;

• The use of relatively inexpensive steels.
  

• The small degree of part distortion after heat treatment.

• High production rate capability in cell or inline configuration.

• Easily integrated into existing production manufacturing line.
  

• Highly accurate heating process.
  

• Excellent repeatability for assurance of quality control.
  

• Minimal to no surface oxidation.

INDUCTION HEATING EQUIPMENT FOR PRE-FORMING HEATING APPLICATIONS

Core heating of metal makes it considerably easier to shape. Induction heating equipment is particularly well suited for heating half finished metal products` such as billets, slugs, bars, tubes, etc, before rolling, stamping, forging, drawing, extrusion or other shaping operations.