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Induction Heating Systems for Hardening IHSH (High Frequency Current Treatment)

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Universal hardening systems are designed for surface hardening of external and internal engineering workpieces such as arbors, gear shafts, gear wheels, etc. Progressive hardening is performed as an inductor scans the surface of treated workpiece. Simultaneously, the workpiece is rotated around the axes to harden the surface uniformly. The systems IHSH-X-X are produced in vertical and horizontal versions.

Treatment of workpieces which length is less than 3 m is usually performed in a system of vertical version. Workpieces that are longer than 3 m are treated in a system of horizontal version.

A set of supply includes:
 
1. SCR or transistor frequency converter with digital control system;
2. Hardening machine equipped with:
3. Capacitor unit, designed for reactive power compensation;
4. Two-circuit cooling station, that cools workpieces of SCR frequency converter and capacitor unit with stilled water in order to avoid electrochemical corrosion;
5. Transfer mechanism of hardening transformer with an inductor. The moving is performed along axis of treated workpiece;
6. Rotating mechanism of cylindrical workpieces (this mechanism excludes a possibility of spotty hardening);
7. Mechanism that transfers an operation desk for heat treatment of gear wheels of different diameters
8. Digital control panel where all the necessary measuring and indication devices, regulating and controlling elements are situated;
Busbars, pipe lines, clamping and isolating elements.

TECHNICAL CHARACTERISTICS

Parameters
IHSH-100-66
IHSH-160-8/10
IHSH-250-2,4/10
Supply power, kW
100
160
250
Maximum frequency of  contour circuit, kHz
66
8/10
2,4/10
Number of phases of supply mains
3
3
3
Nominal voltage of power supply, V
380
380
380
Temperature of hardening heat, °С
900-1100
900-1100
900-1100
Rate control range, mm/sec
5-40
5-40
5-40
Maximum dimensions of shaft parts, mm
   - diameter
150
250
300
   - length
1200
2000
3000
Minimum dimensions, mm
 
 
 
   - diameter
5
15
20
   - length
100
100
100
Spinning speed of a workpiece about its axis, rpm
100
100
100
Dimensions of the system, mm
 
 
 
 
А=5000
А=5000
А=6000
 
В=3200
В=3200
В=3500
 
Н=2470
Н=2470
Н=4430
Water consumption, m3 /hour
8
8
10
Consumption of hardening liquid (water, emulsion), m3 /hour
1,0
1,0
1,0

 

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