Heated Forging Equipment - International Foundry, Die Casting & Forging
Tue Aug 08 08:23:43 CST 2023
1. The heating principle of heating forging equipment:
The heating forging equipment applies the principle of electromagnetic induction, and the power frequency 50Hz is converted to 100--10000Hz through the frequency conversion device, and the frequency conversion current is input to the spiral induction coil wound by a rectangular copper tube, and an alternating current is generated inside the induction coil. Magnetic field, the metal blank inside the magnetic field cutting coil needs to be heated. The metal blank will form an eddy current due to the action of the alternating magnetic field. The eddy current moves inside the metal blank to generate heat, thereby achieving the purpose of heating itself.
2. Parameters of heating forging equipment:
a. Equipment name: heating forging equipment
b. Application process: heating before forging
c. Workpiece material: carbon steel, alloy steel, alloy aluminum, copper, etc.
d. Heating process: medium frequency induction heating
e. Control program: PLC automatic intelligent control closed-loop control
f. Heating temperature measurement: infrared thermometer controls temperature
g. Cooling form: closed cooling system
3. Heating coil design of heating forging equipment:
The inductance parameter design of the induction coil of the heating forging equipment: according to the different parameters of the workpiece, that is, the size, weight, heating temperature, heating time and heating efficiency of the workpiece, and then according to the computer-aided coil design and Haishan's nearly 30 years of inductor design Experience, so as to obtain the effect of high efficiency in workpiece heating. Ensure that the heating performance of the workpiece meets the process requirements.
4. Composition of heating forging equipment
The heating forging equipment includes intermediate frequency power conversion device, induction coil, automatic feeding device, infrared temperature measuring device, discharging device, cooling system and plc automatic control system.
5. Application fields of heating forging equipment:
It is used for diathermy and supplementary temperature of bar, round steel, square steel and steel plate, on-line heating of blue quenching and blanking, local heating, on-line forging of metal materials (such as precision forging of gears, half-shaft connecting rods, bearings, etc.), extrusion , hot rolling, heating before shearing, spraying heating, hot assembly, and overall quenching, annealing, and tempering of metal materials.
6. Features of heating forging equipment:
a. Inductor exchange: There are various types of heating blanks, and it is necessary to set up various specifications of inductors, sharing one furnace body. The new type of channel developed by Haishan Electric Furnace is quickly clamped to ensure that the sensor can be completed in a short time. Interchangeable without removing a single bolt.
b. Fast heating and less oxide skin: The medium frequency induction heating equipment uses the principle of electromagnetic induction, and the heat is generated on the workpiece itself. Less oxidation, especially suitable for all kinds of precision forging.
c. Stability: The continuous feeding of large bars reduces the impact on the intermediate frequency power supply and the temperature closed-loop control formed with the power supply and the participation of the fast feeder will ensure that the heating temperature of the billet is consistent from end to end, and the temperature of the core surface is only 2~3 degrees .
d. Multi-variety feeding and discharging machine: according to the different technical requirements of users, different feeding and discharging machines are configured to form an optimized combination of heating forging equipment. Specific forms include: continuous, intermittent, etc.; discharge form: tilting, straight sliding, etc.
e. Multiple protections: alarms for water temperature and pressure of the cooling water circuit. Set the upper and lower limits of the temperature alarm.
f. Full digital control: with high control precision and high reliability
g. Voltage and current double closed-loop control system to ensure the stability and reliability of the system.
h. Perfect protection system for heating and forging equipment: it has various protections such as overvoltage, overcurrent, phase loss, insufficient water pressure, and high water temperature to ensure that the heating equipment does not damage components when it fails.
i. Perfect external control interface of heating forging equipment: it can conveniently realize closed-loop control of external temperature and so on.
j. The intermediate frequency power supply of the heating forging equipment has a high start-up performance, which completely eliminates the problem of start-up failure.