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[CN 201610799216.8] Pipe flaring system and pipe flaring method based on hydraulic press
[CN 201610799216.8] A Pipe Flaring System and Pipe Flaring Method Based on Hydraulic Press Title: A Pipe Flaring System and Pipe Flaring Method Based on Hydraulic Press Application Number: CN 201610799216.8 Applicant: Baolong (Anhui) Auto Parts Co., Ltd. Application Date: 2016-8-31 Patent Type: Invention Application The present invention discloses a pipe flaring method for flaring one end of a pipe. In the above-mentioned flaring method, before the flaring extrusion, the length of the pipe to be flared is measured, the actual length value of the pipe to be flared is obtained, the difference value T between the actual length value of the pipe to be flared and the length marking value of the pipe to be flared is calculated, and the actual extrusion formation in the subsequent flaring extrusion process is corrected according to the difference value T, thereby reducing the error of the flaring diameter of the pipe. The invention also discloses a pipe expansion system, which can not only realize the above-mentioned pipe expansion method, but also will not greatly increase the cost of equipment upgrading in the process of process transformation.
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