Low Frequency Chopper Ion Nitriding Furnace For Nitriding Metal Surface

Low Frequency Chopper Ion Nitriding Furnace Is A Kind Of Equipment Used For Nitriding Metal Surface 

• ※ Equipment Use
• Low frequency chopper ion nitriding furnace is a kind of equipment used for nitriding metal surface.
• ※ Working principle
• · Working principle of the power supply: The low-frequency chopper pulse power supply is used as the energy source. The pulse width, frequency and duty cycle of the output pulse can be controlled precisely through the low-frequency chopper processing of the output pulse signal. In the process of ion nitriding, this power supply can generate a stable and adjustable electric field between the electrodes to ionize the nitrogen-containing gas in the furnace to form a plasma.
• · ion nitriding principle: In a vacuum environment, the furnace is filled with nitrogen-containing gases, such as nitrogen, ammonia and so on. The low-frequency chopper pulse power source applies an electric field between the anode and cathode to ionize the nitrogen-containing gas and produce charged particles such as nitrogen ions and electrons to form plasma. Nitrogen ion is accelerated under the action of electric field, high-speed bombarding the surface of the metal workpiece, the kinetic energy of the ion is converted into heat energy to heat the workpiece, at the same time, nitrogen ion obtains electrons on the surface of the workpiece to reduce to nitrogen atoms, nitrogen atoms penetrate into the metal surface and spread to the interior, chemical reaction with metal atoms, forming a nitriding layer on the metal surface.
• ※ Technical Features
• · Good nitriding effect: low frequency chopper technology can more accurately control the energy and bombardment frequency of ions, so that nitrogen atoms in the metal surface infiltration more uniform, so as to obtain a uniform thickness, dense nitriding layer, effectively improve the metal surface hardness, wear resistance, corrosion resistance and fatigue performance.
• · high process flexibility: according to different metal materials, workpiece shape and size and specific nitriding process requirements, flexibly adjust the parameters of the low-frequency chopper pulse power supply, such as pulse width, frequency, duty cycle, etc., to achieve a variety of nitriding processes to meet the needs of different users.
• · Energy saving and high efficiency: compared with the traditional ion nitriding furnace power supply, the low-frequency chopper pulse power supply can use electric energy more effectively, reduce energy loss, improve energy utilization efficiency, and reduce production costs.
• · Good stability: the low-frequency chopper technology makes the output pulse signal of the power supply more stable, reduces the voltage fluctuation and current impact in the process of ion nitriding, thus improving the stability and reliability of the equipment operation, and ensuring the repeatability and consistency of the nitriding process.
• · Perfect protection function: usually equipped with overcurrent protection, overvoltage protection, overheat protection and other protection functions, can cut off the power in time when the equipment is abnormal, protect the safety of the equipment and the workpiece, and extend the service life of the equipment.
• ※ Application Field
• · Machinery manufacturing industry: widely used in a variety of mechanical parts surface strengthening, such as gears, shafts, molds, tools and so on. Through ion nitriding treatment, the surface hardness and wear resistance of these parts can be improved, the friction coefficient can be reduced, the service life of the parts can be extended, and the quality and performance of mechanical products can be improved.
• · Automotive industry: used for the surface treatment of automotive engine parts, transmission gears, chassis parts, etc. It can improve the performance and reliability of auto parts under harsh working conditions such as high temperature, high pressure and high speed, reduce the wear and corrosion of parts, reduce the maintenance cost of automobiles, and improve the overall quality of automobiles.
• · Aerospace field: nitriding of parts of superalloys, titanium alloys and other materials in the aerospace field. It can improve the performance of parts in extreme environments such as high temperature, high vacuum and strong radiation, and meet the requirements of aerospace parts for lightweight, high strength and high reliability.
• · Other fields: It is also widely used in electronic industry, medical equipment, petrochemical and other fields. For example, it is used in the electronics industry for surface treatment of electronic components to improve their corrosion resistance and electrical conductivity; It is used in the field of medical devices for surface strengthening of medical devices to improve their biocompatibility and corrosion resistance.

• Technical parameter

• Output voltage	0-1000V continuously adjustable
  Maximum output peak current	Different models vary, 30A~200A range
  frequency	It is generally in a low frequency band, usually below 100Hz, such as tens of Hz, which can make the bombardment of ions on the surface of the workpiece more uniform and reduce the damage to the workpiece.
  Limiting vacuum	Usually up to 6.7Pa, the low limit vacuum can reduce the gas impurities in the furnace, creating a pure environment for ion nitriding
  Rate of pressure rise	≤1.3×10⁻¹Pa/min (1×10⁻³mmHg/min)
  Maximum operating temperature	650℃, it can handle special materials or special process requirements with high nitriding temperature.
  Temperature control accuracy	+ / - 1 ℃
  Maximum furnace loading capacity	Different types of furnace loading capacity is different, can be customized according to customer needs