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[CN 202010121674.2] A Forging Method for Improving Roll Billet Mesh by Using Diameter Forging Machine
[CN 202010121674.2] A Forging Method for Improving Roll Billet Mesh by Using Diameter Forging Machine Title: A Forging Method for Improving Roll Billet Mesh by Using Diameter Forging Machine Application Number: CN 202010121674.2 Applicant: Jianlong Beiman Special Steel Co., Ltd. Application Date: 2020-2-26 Patent Type: Invention Application The present invention relates to a forging method for improving roll billet mesh level by using Diameter Forging Machine, belonging to the technical field of metallurgical machinery manufacturing. In order to solve the problems of high cost, long production cycle and limited forging accuracy of the existing reticulation method, the present invention provides a forging method for improving the reticulation level of roll blanks by using a diameter forging machine, including: upsetting and drawing after the blank is heated to a certain temperature, transferring the resulting blank heat to the forging area of the diameter forging machine and ensuring that the surface temperature of the blank is controlled at 900~920 ℃, the radial forging machine is used to carry out roll body forging passes, A- side roll neck forging passes, B- side roll neck forging passes and finishing forging passes in sequence. Air cooling is carried out for a certain period of time before finishing to control the forging temperature at the lower limit of the final forging temperature of 850±10 ℃. The blank is forged to the finished product by controlling the reduction of finishing forging passes according to the deformation rate of 87.3. It can be applied to the manufacture of roll blanks to achieve the purpose of improving the network at the same time, to reduce costs, mass production and other effects.
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