Annealing

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Definition of induction annealing

Induction annealing is a type of heat treatment process, in which a metal part is slowly induction-heated to a certain temperature, hold for a sufficient time, and then cooled at a suitable rate. The purpose is to reduce the hardness, improve the ductility and machinability; relieve internal stresses, reduce the tendency of deformation and cracks; refine the grains, adjust the structure, and eliminate the structure defects.


Induction hardening is a non-contact process used to selectively harden areas of a part or assembly without affecting the properties of the part as a whole. The quenching depth is related to frequency and heating time: the higher the frequency, the shallower the quenched layer; the lower the frequency, the deeper the quenched layer; the longer the heating time, the deeper the quenched layer, and vice versa. Quenching hardness is related to heating temperature, material and quenching medium.


Annealing of stainless steel cup Video



Advantages of induction annealing

■ Online speed 0-90m/min

■ Applicable to tubes φ3-φ40, sheets T0.5-T5.0, materials of iron, stainless steel, copper

■ Equipped with gas protection device, fast annealing, no deformation

■ Precise temperature control, and easy in-line integration

■ Can anneal multiple workpieces at the same time

■ Can run stably and continuously for one month


Applications of induction annealing

■ Annealing of the refrigerator condenser tubes

■ Annealing of Iron pipes, stainless steel pipes, copper pipes

■ Annealing of wire, tubing, strips

■ Annealing of stainless steel utensils after stretching

■ Various hardware tools annealing, such as knife blades, brass locks

More Applications

  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
  • Annealing of stainless steel cup
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