Induction hardening is a type of heat treatment in which metal parts are heated by electromagnetic induction and then quenched. It is also a type of case hardening and can be used for many steel and steel alloys to improve mechanical properties such as surface hardness and fatigue strength and resistance.Typical applications of induction hardening is the hardening of steel and cast iron. Especially parts, such as drive shafts, engine components and gears undergo the process.

IN­DUC­TION HARD­EN­ING PROCESS OF STAINLESS STEEL

Basically, four different processes for the hardening of stainless steel can be taken into consideration:

• Thermal processes: defined heating up, holding and quenching leads to the formation of martensite in case of curable martensitic or precipitation-hadenable stainless steels. In this method, no further elements are added to the steel. In practice, these processes are known for instance from the hardening of knife blades.
• Thermochemical diffusion processes: By diffusing elements such as nitrogen, chromium, carbon and boron into the surface of a material, intermetallic compounds and new phases are formed in the peripheral area. The compounds and phases formed are subject to compressive stress and lead to the desired hardening effect.
• Coatings: When coating, a wear protection layer is applied to the steel. These include for example: chrome-plating, nickel-plating, thermal spraying and PVD coatings.

Work hardening: increase in hardness by means of massive deformation of the basic structure, which can be caused by means of punching processes and shot peening, for instance.

Quick Detail:

Technical Parameters:

• The maximum diameter of quenching material: 300mm
• The maximum weight of the work piece: 50kg
• Work piece operating speed:1-30mm/s
• Work piece descent speed: 120mm/s
• Speed of main shaft:1-200r/min
• Motor power of main drive: 1.5kw
• Cooling method: immersion, hydrojet
• Machine Weight: 900kg
• Dimension: 1100*900*2000
• Transmission mode: mechanical rotation

ADVANTAGES OF INDUCTION HARDENING:

• Precise control over temperature and hardening depth

• Controlled and localized heating

• Easily integrated into production lines

• Fast and repeatable process

• Each workpiece can be hardened by precise optimized parameters

• Energy-efficient process