KEHUA INTELLIGENT EQUIPMENT
Professional manufacturer of medium frequency induction heating equipments.
◆ heating before forging: used for heating before forging of gear, ring gear, half shaft connecting rod, bearing, shackle, rigging and other products;
◆ online heating: pipeline anti-corrosion spraying, blue brittle blanking of bar stock, online tempering of steel (wire) pipe, etc.
◆ local heating: bending of U-bolt, thermal assembly of drum, bending of steel pipe and other production heating processes
◆ The power consumption can reach below 360 degrees
◆ Simple production operation, ﬂexible incoming and outgoing materials, high degree of automation, online production can be realized; High heating speed, less oxidation and decarburization, high effciency and good forging quality;
◆ Workpiece heating length, speed, temperature, etc. can be accurately controlled;
◆ Uniform heating of workpiece, small temperature difference between core and surface, high control accuracy;
◆ Integrated design of inductor and furnace body, quick change connector for different inductor design, easy to change;
◆ Comprehensive energy-saving and optimized design, low energy consumption, high effciency and lower production cost than coal burning;
◆ Meet the requirements of environmental protection, with small pollution, and reduce the labor intensity of workers.
Power estimation formula of GTR medium frequency electric furnace
P = (C × g × T) / (0.24 × t ×∮ )
Formula Description: P-equipment power (KW); C-specifc heat of metal, in which the specifc heat coeffcient of steel is 0.17;
G - weight of heated workpiece (kg); T - heating temperature (℃ ); t - working beat (seconds);
∮ - comprehensive thermal effciency of the equipment, generally 0.5-0.7, about 0.4 for special-shaped parts.
For example, a forging plant has a forging blank of Φ 60 × 150 mm, a working beat of 12 seconds / piece (including auxiliary time), and an initial forging temperature of 1200 ℃ . Then the power calculation of GTR medium frequency electric furnace is required: P = (0.17 × 3.3 × 1200) / (0.24 × 12 × 0.65) = 359.61kw.
According to the above calculation, GTR medium frequency induction heating equipment with rated power of 400KW can be confgured.
|Rated capacity(T)||Rated power(KW)||Power input||Power output||Adaptive power transformer (KVA)|
|Incoming voltage(V)||Incoming line current(A)||Intermediate frequency voltage(V)||Rated frequency(KHZ)|
|1||150-300||3P-380||260-490||750||0. 3 ~0.5||160, 315|
|2||250-400||3P-380||260-650||750||0. 3 ~0.5||315, 500|
|3||300-500||3P-380||490-830||750||0. 3 ~0.5||315, 500, 630|
|5||600-800||3P-380||1000-1330||750||0. 3 ~0.5||800, 1000|
|8||700-1000||3N-660||780-1120||1200||0. 2 ~0.4||800, 1250|
|10||900-1200||3N-660||1000-1330||1200||0. 2 ~0.4||1000, 1250|
|12||1000-1500||3N-660||780-1680||1200||0. 2 ~0.4||1250, 1600|
|15||1200-1600||3N-660||1000-1800||1200||0. 2 ~0.4||1600, 2000|