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[CN 201610991253.9] Hot Roll Forming Method of Variable Section Thickness Sheet of Vertical Hydraulic Press
[CN 201610991253.9] Title of Hot Roll Forming Method for Variable Section Thickness Sheet of Vertical Hydraulic Press: Application Number of Hot Roll Forming Method for Variable Section Thickness Sheet of Vertical Hydraulic Press: CN 201610991253.9 Applicant: North University of China Application Date: 2016-11-3 Patent Type: Invention Application for Hot Roll Forming Method for Variable Section Thickness Sheet of Vertical Hydraulic Press, including the following steps: Step 1: Blanking; Step 2: Heating the blank to about 470 ℃ with a hot circulation heating furnace, keep the temperature for about 4 hours, and install the sheet hot rolling forming device on the press. Then, the roller shaft is heated by an alcohol torch to raise the temperature to about 300 ℃, and then the heated blank is manually fed into the groove between the roller shafts by a clamp and its positioning is completed. Step 3: The hydraulic machine drives the rack to move from up to down, and the roller shaft rotates through the meshing action of the rack and the gear, with the rotation of the roller shaft, the end of the positioned sheet is naturally bitten. With the continuous rolling, the amount of pressure is increasing, and the rolled piece gradually changes from the biting process to the unstable rolling stage, and then to the stable rolling stage, and finally the required rolled pieces are rolled out. Improve the comprehensive mechanical properties of parts and effectively solve the problem of insufficient strength of machine parts.
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