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Product Description:
The spheroidizing annealing process of the Hangshen natural gas spheroidizing annealing furnace can condense the layered or reticulated carbide inside the steel into a spherical shape to improve cutting performance and processing plasticity.
Hangshen steel wire annealing furnace is suitable for eutectoid steel and hypereutectoid steel, such as carbon tool steel, alloy tool steel, bearing steel, etc. The steel structure before annealing is hard and brittle, not only difficult to cut, but also in the subsequent quenching process. Easy to deform and crack. After annealing in a high efficiency gas furnace, the steel structure changes from lamellar pearlite or reticulated cementite to spherical pearlite structure, wherein the cementite is spherical particles, dispersed on the ferrite matrix, and the hardness is low. It is easy to cut. When quenching heating, the austenite grains are not easy to grow. The deformation and cracking tendency of the workpiece during cooling are small. In addition, for some hypoeutectic steels that need to improve cold plastic deformation, spheroidizing annealing may also be used.
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