Seamless steel tube billet induction heating furnace

The tube blank of seamless steel pipe is made by heating and perforating the whole round steel. There is no welding seam on the surface of the tube blank. This kind of tube blank heating equipment is called a seamless tube blank induction heating furnace. The seamless steel tube billet can be used for hot-rolled seamless steel tubes, extruded seamless steel tubes, and used as petroleum geological drilling tubes, petrochemical cracking tubes, boiler tubes, bearing tubes, and high-precision structural steel tubes for automobiles, tractors, and aviation Wait. So, what is the specific structure of the seamless steel tube billet induction heating furnace? Let me introduce you in detail.

1. Application of seamless tube blank induction heating furnace:

The seamless steel tube billet induction heating furnace is used to heat the round steel to the piercing process temperature, and the seamless steel tube is rolled after the tube billet of various seamless steel tubes is manufactured. It is also a special heating equipment for the manufacture of seamless steel tubes.

2. Parameters of seamless steel tube billet induction heating furnace:

1. The material of the seamless steel tube blank induction heating furnace heating tube blank includes carbon structural steel, low alloy structural steel or alloy structural steel.

2. The specifications for heating round steel in seamless steel tube billet induction heating furnace: diameter range 32mm—280mm; length range 400mm–1200mm

3. Heating temperature of seamless steel tube billet induction heating furnace: 1250 degrees

4. Productivity of seamless steel tube billet induction heating furnace: 1.5t/h—25t/h

5. Energy consumption of seamless steel tube billet induction heating furnace: 400Kwh/t

6. Power of seamless steel tube billet induction heating furnace: 500Kw–10000Kw

7. Cooling of seamless steel tube billet induction heating furnace: HSBL type cooling system

3. Features of seamless steel tube billet induction heating furnace:

1. Seamless steel tube billet induction heating furnace Adopting electromagnetic induction heating principle, the heat is generated inside the heated round steel, the heating speed is fast, the efficiency is high, the surface of the workpiece is less oxidized and decarburized, and raw materials are saved.

2. The seamless steel tube billet induction heating furnace has uniform heating temperature, high temperature control accuracy, small temperature difference, and no pollution: the variable frequency power supply of the seamount electric furnace is easy to directly and accurately detect the load current change, so as to realize the closed-loop control of the output power, even if the external voltage Fluctuations can also maintain constant output power and stable temperature. The round steel heating temperature control accuracy is extremely high and the temperature difference between the core and the surface is low, and there will be no harmful gas, smoke, dust, strong light and other environmental pollution during the production process.

3. The seamless steel tube billet induction heating furnace has a high degree of mechanization and automation: it has the advantages of high power supply intelligence, precise temperature adjustment, automatic frequency conversion tracking, variable load adaptation, and automatic power adjustment. It is a “one-button” “Operation, that is, input current, voltage, speed and other preset parameters into the intelligent control system before production. After one-key start, the heating work is automatically completed without personnel on duty, and the automatic intelligent induction heating is truly realized.

4. The continuous operation reliability of seamless steel tube billet induction heating furnace is extremely strong: the frequency conversion power supply of the Haishan electric furnace has been continuously operated for more than one year without stopping for 24 hours, during which there are many times of non-stop and variable load (heavy load/light load repeated switching) No failure occurred.

5. The seamless steel tube billet induction heating furnace adapts to the flexible production of continuous automated production lines: frequent replacement of different specifications and varieties of steel to adapt to different production processes, no need for personnel adjustment after variable frequency and load, the entire line is cleared and the process adjustment is simple and quick. Meet the needs of medium and large batch production.

6. Seamless steel tube billet induction heating furnace temperature closed-loop control system: infrared thermometer measures the heating temperature of the round steel billet at the exit of the induction heating furnace, and monitors whether there is overheating or incomplete heating. After the temperature is monitored, the signal is finally fed back to the control system of the frequency conversion power supply of the induction heating work host—the Haishan electric furnace. The power supply is automatically identified according to the set process requirements. When the blank temperature exceeds the target temperature range, the control system will set it The output power is automatically adjusted based on the value, and the power of the power supply is corrected to control the temperature of the blank within the target range. Reduce the occurrence of unqualified products and ensure the consistency of product quality.

4. User preparation project of seamless steel tube billet induction heating furnace:

1. Provide high voltage to the primary side of the transformer.

2. Altitude: ≤2000m; Relative humidity: ≤90%

3. The seamless steel tube billet induction heating furnace must be grounded: it is recommended to use galvanized pipes to be driven into the ground, and to be reliably connected to the equipment, and the connecting wire should be greater than 10 flat copper wires. The power supply, furnace body and operation table are all separately set with ground wires.

4. The user prepares the oil for the transformer.

In summary, the seamless steel tube billet induction heating furnace is currently the mainstream heating equipment for billet heating, and it is also the current heating device that meets the requirements of environmentally friendly heating.