24Dt(0.08-0.25)Fine Wire Drawing Machine Copper Drawing Machine,Cable Making Equipment,Wire Drawing Machine RBO Machinery & Electric (Suzhou) Co., Ltd. , http://www.wire-drawingmachine.com
Preface The electrical parameter image of the electrical parameter image is a comprehensive image composed of the following five parts. The structural design of the electrical parameter image is mainly determined according to the calculation of the electrical parameters in the process of high frequency induction heating, the selection procedure and the relationship between the electrical parameters. The drawn image of the electrical parameter image is composed of a basic image and is divided into five parts according to the layout restriction. As shown in the figure, the structure is arranged and combined with reference to the structural form of the block diagram to form a complete image for use. The relationship between the axis of the power ratio of the shaft workpiece device.
Power ratio of workpiece-like equipment. The power area ratio of the wheel equipment is selected according to the depth of the hardened layer of the hardened layer and the diameter of the workpiece heating according to the power area ratio of the cylindrical workpiece with the cylindrical gear device. According to the requirements of the shape selection of the hardened layer of the gear, according to the modulus of the gear and the effective heating of the gear, the depth of the effective hardened layer should be selected according to the size of the technical requirements of the part. Or according to the size of the heating diameter of the shaft type workpiece, the effective heating diameter of the gear is determined as the diameter of the indexing circle to indicate the times of the shaft type workpiece, and the conversion relationship thereof. When shallow hardening, medium deep hardening, and deep hardening, the equipment work indicates the gear hardening and the area ratio of the gear in the through gear.
Compared with the effective hardened layer, the deep heating diameter is similar to the profiled tooth profile hardening and the profiled tooth profile hardening. The relationship between the gear modulus and the effective heating diameter of the gear. The calculated heating area of ​​the heated area refers to the area of ​​the covered portion of the induction heating workpiece that is covered by the inductor. The heating area of ​​the shaft-like workpiece can be obtained from the heating diameter and the radial height of the workpiece. The heating area of ​​the gear can be obtained from the effective heating diameter and the tooth width of the gear to determine the axial height of the shaft-type workpiece or the tooth width of the gear. The heating area of ​​the m-axis workpiece and the spur gear can be found.
Calculation of equipment output power (P) After the equipment power area ratio and heating area are determined, the equipment output power can be obtained: P=P.
3.4 Decomposition of device output power (P) The decomposition of output power is the selection of the screen voltage and the calculation of the screen current. The output power of the device can be decomposed into the product of the screen voltage and the screen current: P=UaIa.
N-type P-device output power, kwUa screen voltage, kVIa screen current, An oscillating tube number, only first select the screen voltage Ua, Ua can be adjusted in the range of 67513.skv to meet different workpieces, different heating processes It is required that the screen current Ia after the screen voltage Ua is selected can be obtained by the above formula. According to the output power of the required equipment, the screen voltage Ua can be selected in 13 to find the required screen current Ia.
3.5 Adjusting the optimum output power The screen voltage Ua, the screen current h, the gate current 19 and the tank voltage UC determine the output power and efficiency of the device.
When the high frequency oscillation is in an optimal working state, the screen current Ia and the gate current 19 should reach a certain ratio. For the GP-60 type high-frequency induction heating device Ia/19-56, GP-10 high-frequency induction heating device Ia/Ig5 protection, the ratio of Ia and 19 can be made to meet the above requirements by adjusting the power regulator. After the screen current Ia is determined, the value of the required gate current can be found from the ratio of Ia/19.
The tank voltage is the oscillating voltage of the high-frequency induction heating device. When adjusting the handwheel and the feedback handle, the working state of the induction heating device can be judged according to the tank voltage U. and the screen current Ia: Uc, la at the initial adjustment The gradual increase indicates that the device power is increasing, and when the UC is not moving or starting to decrease, it indicates that it is the best state. When the UC is decreased, the device power is reduced and the efficiency is reduced. In the process of induction heating, the electromagnetic properties are constantly changing, and the optimal state during operation is difficult to maintain for a long time. In order to make the equipment operate safely, it should work under weak overpressure conditions.
4.1D selection of parameter image use method of shaft type workpiece electrical parameter selection example: shaft type workpiece local high frequency induction quenching, heating diameter 10cm, axial height H scm, the selection of electrical parameters 4.
1.1 Effective hardening layer depth DC selection According to the size of the shaft workpiece heating diameter D, 1 select the effective hardening layer depth DC, when D = loem, DC = 4mm (take the arithmetic mean).
If the technical conditions of the part, the depth of the hardened layer is specified, it shall be implemented as required.
4.1.2 Equipment power area ratio P. Select according to the selected effective hardened layer depth Dc value, by selecting the device power area ratio P.
4.1.3 Calculation of heating area S When the heating diameter D and the axial height H=10em, H=sem,
4.1.4 calculation of equipment output power P according to heating area S and equipment power area ratio p.
The output power P of the device can be found, when s=is7emZ, P.=0.
At 63kw/emZ,
4.1.5 Decomposition of the output power P of the device The screen voltage Ua is selected by a 13 and the screen current Ia is found according to the value of the output power P value of the device. When ua=12 is selected.
When skv and P are two 99kw, Ia=7.gA is found by one.
4.1.6 Adjusting the optimal output power According to the screen current Ia, the gate current is selected according to the screen current ratio (Ia/19).
When Ia-7.gA, the GP-100 high-frequency induction heating device is used, and the gate current varies by about 191.
0-1.6A.
4.2 Selection of electrical parameters of cylindrical gears: high frequency induction hardening of cylindrical gear teeth, modulus m-3.
5, the number of teeth z = 36, tooth width H - Zem, the choice of electrical parameters.
4.2.1 Calculating the effective heating diameter of the gear The effective heating diameter D of the gear is 1.2 times the diameter of the gear indexing circle, and the effective heating diameter D of the gear is found.
According to the gear modulus m and the number of teeth Z, the diameter of the gear index circle is d.1mz=126em. When d.=126em, the effective heating diameter D of the gear is 15.km.
4.2.2 Equipment power area ratio P. According to the size of the gear module and the shape of the hardened shape of the tooth, the power ratio of the equipment is selected. P. When the gear modulus is 3.5, to obtain the profile-like tooth hardening, The calculation of the heating area S is based on the gear effective heating diameter D and the tooth width H in a 9 to calculate the heating area S. When D = 15. lem, H = Zem, it is found that S = 95 cm 2 .
4.2.4 Heating area S and equipment power area ratio in the calculation of equipment output power P.
The output power P of the device can be found. When S is 95cm, P.1.48kw/em, P=14okw is found.
4.2.5 Decomposition of device output power P Select the screen voltage Ua, and then check the screen current Ia according to the value of the device output power P value.
When Ua=12skV and P=140kw are selected, Ia=11.ZA is found.
4.2.6 Optimal output power adjustment According to the screen current la, the gate current is selected according to the screen current ratio (Ia/19). When Ia-n.ZA, use GP-10 high frequency. Inductive processing equipment, the gate current varies by about 191.
Selection method of shaft parts and cylindrical gear frequency induction heating surface quenching power consumption