1. Product Overview

The Hot rolled steel ball production line is specially customized for steel ball hot rolling, forging and quenching production lines. It adopts IGBT medium-high frequency induction heating technology, which realizes uniform through-heating for steel bar raw materials and finished steel balls. Featuring low oxidation, precise temperature control and continuous automatic feeding, it is widely applicable for grinding balls, bearing steel balls and industrial wear-resistant steel balls. The equipment supports round steel blank heating, integral quenching and surface tempering to meet the hardness and toughness requirements of finished steel balls.

2. General Electrical Technical Parameters

3. Production & Processing Parameters

3.1 Machining Specification

• Applicable Raw Material: Round steel bar, solid steel billet; diameter range Φ20mm - Φ65mm

• Finished Steel Ball Diameter: Φ20mm - Φ120mm (grinding ball & bearing ball)

• Production Capacity: 0.2 - 16 Ton/h; conventional model 8 - 24 Ton/h

• Feeding Method: Automatic roller continuous feeding, horizontal feeding

• Conveying Speed: 0.5 - 12m/min, stepless frequency conversion speed regulation

3.2 Heating Temperature Process Parameters

• Blank Forging & Rolling Temperature: 1100℃±50℃

• Quenching Heating Temperature: 860℃ - 940℃

• Tempering Heating Temperature: 220℃ - 380℃

• Cross-section Temperature Difference: ≤±6℃

• Temperature Control Accuracy: ±3℃ (infrared temperature measurement)

• Oxidation Scale Rate: ≤0.6%

4. Applicable Steel Ball Material Parameters

5. Furnace Body & Cooling Structure Parameters

5.1 Induction Furnace Structure

• Coil Material: Oxygen-free copper tube, integrated winding structure

• Furnace Lining Structure: Multi-layer composite thermal insulation refractory fiber

• Magnetic Yoke: Closed silicon steel sheet magnetic yoke to reduce magnetic leakage

• Furnace Shell Temperature: ≤38℃ under continuous working condition

5.2 closed cooling tower system

• Cooling Mode: Closed circulating water cooling

• Cooling Water Pressure: 0.25 - 0.45MPa

• Water Flow Rate: ≥15m³/h

• Cooling Water Temperature: 15℃ - 25℃; maximum outlet temperature ≤35℃

6. Control & Protection Parameters

• Control System: PLC intelligent automatic control, one-key parameter switching

• Monitoring System: Real-time temperature, current and voltage data display

• Protection Function: Overvoltage, overcurrent, water shortage, overheating and short-circuit protection

• Working Environment: Ambient temperature -10℃ ~ +50℃, humidity ≤85%

• Equipment Noise: ≤72dB during operation