Method for improving refined and uniform structure of large-section-size austenitic steel forge piece
The invention discloses a method for improving the refined and uniform structure of a large-section-size austenitic steel forge piece, and belongs to the technical field of austenitic steel preparation processes. In the radial forging process, after the blank is heated to the preset temperature in a...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
02.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a method for improving the refined and uniform structure of a large-section-size austenitic steel forge piece, and belongs to the technical field of austenitic steel preparation processes. In the radial forging process, after the blank is heated to the preset temperature in a stepped temperature rise and heat preservation mode and subjected to heat preservation, multi-pass radial forging is conducted, and in the multi-pass radial forging, the forging ratio, the pressing deformation amount, the blank rotating speed and the blank feeding rate are gradually decreased along with the pass of radial forging; and in the violent temperature deformation process, the surface temperature of the forging rod is increased in a mode of increasing the striking frequency. Due to the fact that the heat conductivity of the austenitic steel is low, the core temperature is still high and kept at 1000 DEG C or above before the last pass of forging, the surface temperature of a forged rod is low and lower th |
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Bibliography: | Application Number: CN202311861403 |