Ball Pin Hardening system

Ball pin is used in the steering system of automobile chassis, from connecting ends for adjustment links and pitch control links, to cylinder heads and rod ends. ROCHO induction hardening system, through surface induction hardening process, provides high processing accuracy for the ball pin, and improve wear resistance.

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Ball Pin Technology Process

The processing process of the ball pin is: round steel blanking→ hardening and tempering→ drilling→ grinding→ thread rolling→ induction heating and hardening→ tempering.
ROCHO induction ball pin hardening system adopts medium frequency induction heating power supply, water cooling hardening process, to improve the surface hardness and wear resistance of ball head pins.

Ball Pin Hardening Capacity

For the different positions of the ball pin models, the hardening depth and process are also different. For example, the effective hardening for truck ball pins is generally 2-3mm, and the hardening position required to be harden as a whole. For the surface treatment of the car ball pin, only hardening the ball head can satisfy its wear resistance and tensile strength.

Ball Pin Hardening System

The ball pin hardening system mainly includes: ball pin hardening machine tool, IGBT high frequency power supply, hardening liquid circulating cooling system, pure water cooling circulating system, PLC electrical control system, chiller, etc.

The hardening system adopts an integral welded lathe bed, which has good rigidity, thermal stability and vibration resistance. Manual loading and unloading, the positioning, clamping, and other operations and processing of the parts are automatically controlled by the machine tool;

Ball pin hardening system, matching high frequency induction heating power supply, which has multiple protection functions including over-current protection, water shortage protection, over-heat protection, over-voltage protection, short-circuit protection, phase failure protection and other alarm functions. It will automatically alarm in case of faults, greatly improving the reliability of the equipment.

The induction coil is a profiling inductor made according to the size of the ball head pin. After reaching the hardening temperature, the induction coil will spray water and start to quench the work parts at the same time. This process ensure the hardening temperature and the uniformity of the work part, and improve the hardness and wear resistance of the ball pin.

The cooling system adopts soft water circulation cooling process, which can provide low-pressure cooling for the induction heating power supply, and high-pressure cooling for the hardening system and induction coil. Each cooling circuit is equipped with temperature, pressure and flow monitoring and protection system.

PLC Control System

The ball pin hardening control system can choose Siemens PLC touch screen and other control systems available, allowing operators to use touch screen to set various process parameters (including voltage, current, heating time, cooling time, heating power, frequency, spray flow, etc. ) , with high control accuracy and automaticity.

Applications:

ROCHO technical team specializes in design and build of induction heating power supply, high-frequency hardening equipment and fully automatic hardening and scanning system. It is widely used in heat treatment industry and can be used for hardening of various work pieces, such as:
1. Gear induction hardening
2. Crankshaft induction hardening
3. Cylinder liner induction hardening
4. Shafts & rods induction hardening
5. Guide rails induction hardening
6. Ball pin induction hardening
7. Bolts and fastener induction hardening
8. Concrete pump tube inner wall induction hardening

Technical Specification:

Power Output	15kW-160kW
Power Supply	380-480V, Three phase, 50Hz/60Hz
Output Current	200A-6000A
Output Frequency Range	30-80kHz
Work Piece Type	Hardening of various gears, shafts, camshaft, crankshaft, spline shaft, crane wheel, pins, cylinder liner etc.
Duty Cycle	100%
Maximum Clamping Part Length	650mm
Maximum Heating Length	600mm
Maximum Parts Weight	50kg
Scanning Speed	2-80mm/seconds
Parts Rotate Speed	80mm/min
Main Shaft Rotate Diameter	400mm
Cooling Way	Water cooling
Water Temperature	The device alarms when the water temperature exceeds 40 °C.
Cooling Way	Closed circuit cooling system, air chiller, water chiller (Available)
Hardening Medium	Water, oil, salt, alkali, etc.
Hardening Way	Automatic scanning hardening
Upgraded	CNC system or PLC control system
Protection Function	Over voltage, over current, short circuit, water shortage, phase loss, water temperature alarm, etc.
Warranty	One year technical support and service
Dimensions	Customized full automatic induction hardening system

ROCHO technical team can customize the induction heating power supply for special purposes according to customer requirements, and design capacitors, frequencies and induction coils according to the metal workpiece to be heated and heating requirements to achieve the best heating effect.
When you need to consult or order machine, please provide the following information:
(1) the local industrial voltage;
(2) the name and material of the product to be processed;
(3) the required process: heating, brazing, hardening, melting or annealing;
(4) the size of the product to be processed, such as diameter and length and if drawings can be provided.

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