The specific process of spheroidizing annealing

 The specific process of spheroidizing annealing

①Ordinary (slow cooling) spheroidizing annealing, slow cooling is suitable for most steel grades, especially when the furnace load is large, the operation is more convenient, but the production cycle is long

②Isothermal spheroidizing annealing is suitable for most steel types, especially steels that are difficult to spheroidize and steels with high spheroidization quality requirements (such as rolling bearing steel); its production cycle is shorter than ordinary spheroidizing annealing, but it needs to be able to control the eutectoid. Furnace with cooling rate before transformation

③Cyclic spheroidizing annealing is suitable for steel whose original structure is lamellar pearlite structure, and its production cycle is also shorter than ordinary spheroidizing annealing. Therefore, it is not widely used in production

④ Low-temperature spheroidizing annealing, suitable for cold-formed steel and quenched and hardened steel (the latter is usually called high-temperature softening and tempering)

⑤ Deformation spheroidization annealing, deformation processing has an accelerating effect on spheroidization, and the combination of deformation processing and spheroidization can shorten the spheroidization time. It is suitable for cold and hot deformation of steel parts and steel (such as strip).

Learn more:

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Production Process Of Stainless Steel Powder For Metal Injection Molding

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