Zhengzhou Lanshuo Electronics Co., Ltd |
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IGBT 120kw Gear High Frequency induction hardening quenching
machine
1.Common methods of gear heating and quenching
The gear is quenched and heat treated by a high-frequency induction heating machine. The commonly used heating methods include simultaneous heating method and continuous heating method.
1. Simultaneous heating method
The simultaneous heating method is to heat and quench the surface
to be hardened at one time. This method is suitable for small
workpieces or workpieces with large size but small quenching area,
such as crankshafts, gears, etc. In mass production, in order to
give full play to the potential of the equipment and improve the
productivity, the simultaneous heating and quenching method should
be used as much as possible under the condition that the output
power of the equipment is sufficient. Its characteristics are: when
the frequency is constant, the heating temperature and depth depend
on the unit surface power and heating time, the operation is easy
to control, and the quality is stable. The cooling methods after
heating include immediate spray cooling and immersion cooling.
2. Continuous heating method
The continuous heating method is to make the inductor move relative
to the workpiece, and heat and quench the surface of the workpiece
in turn. This method is suitable for situations where the quenching
area is large and the equipment power cannot be guaranteed to be
heated at the same time, such as the quenching of shafts, machine
tool guides, and large-modulus gears. The productivity of this
method is low, but it can reduce the total power required for
workpiece heating and expand the scope of equipment application.
When a single piece is produced in small batches, the continuous
heating method is often used. If the power of the equipment is
insufficient when heating by this method, the preheating continuous
heating and quenching method can be used, that is, the use of the
inductor to move in the reverse direction for preheating, and then
immediately move forward for heating and quenching. The
characteristic of this method is that the heating temperature is
controlled by the moving speed of the workpiece under the condition
that the electrical parameters and the size of the inductor are
fixed.
2. Technical Parameter of High Frequency Induction Hardening
Quenching Machine:
Working voltage | 380V/50HZ |
Voltage range | 340V-420V |
DC power | 120KW |
DC current | 130A |
Oscillation frequency | 18-35KHZ |
Efficiency | 90% |
Duty cycle | 100% |
Weight | 230KG |
Dimension | 600*480*1360mm,800*500*580mm |
Cooling water flow | 0.2MPa-45L/Min,0.2MPa-55L/Min |
3. Induction Quenching Hardening Machine Application:
Where is induction hardening used?
Induction is used to harden numerous components. For example:
gears, crankshafts, camshafts, drive shafts, output shafts, torsion
bars, rocker arms, CV joints, tulips, valves, rock drills, slewing
rings, inner and outer races.
(1) For auto parts and motorcycle parts hardening.
(2) For machinery parts, like gears, transmission wheels, axles, shafts, spline shafts, ball stud hardening.
(3) For machine tools quenching, like guide rail machine tools hardening.
(4) For spanner, pliers, CNC machines, hammer, axe hardening etc.
4. What are the advantages of induction hardening?
Induction hardening boosts throughput. It is an extremely fast and
repeatable process that integrates easily into production lines. It
is clean, safe and typically has a small footprint. Workpieces are
usually treated individually. This ensures that each separate
workpiece is hardened to its own precise specifications. The
optimized process parameters for each workpiece can be stored on
your servers. Since only the part of the component to be hardened
is heated, induction hardening is extremely energy-efficient.