Magnesium alloy sheet strip coupling and deformation combined rolling system and rolling method thereof

Abstract

The invention relates to a magnesium alloy sheet strip coupling and deformation combined rolling system and a rolling method thereof, and mainly solves the technical problems of strong mechanical anisotropy, bad plate shape and edge crack defects and low yield of rolled magnesium alloy sheet strips in a traditional rolling process and low production efficiency in an equal channel angular rolling method. The magnesium alloy sheet strip coupling and deformation combined rolling system consists of two uncoiling-coiling machines, two five-roller shearing and bending large deformation adjusting devices, two three-roller straightening machines, two roller clamping and feeding devices and a six-roller reversible rolling machine, wherein the uncoiling-coiling machines, the five-roller shearing and bending large deformation adjusting devices, the three-roller straightening machines and the roller clamping and feeding devices are arranged at the front and back edges of the six-roller reversible rolling machine in sequence to realize reciprocating rolling of magnesium alloy sheet strips. The rolling method of the rolling system comprises the following steps: the reciprocating rolling is performed for uncoiled magnesium alloy strip coils in sequence through the equipment; and the system is stopped when the finished product rolling is finally finished.

Description

technical field [0001] The invention relates to a magnesium alloy sheet strip coupled deformation combined rolling system and a rolling method thereof, belonging to a magnesium alloy sheet rolling equipment and a rolling method thereof. Background technique [0002] The traditional rolling production methods of magnesium alloy strips are mostly multi-pass continuous rolling or single-stand reciprocating rolling. Reciprocating rolling can greatly improve production efficiency. However, full longitudinal rolling results in strong mechanical anisotropy of the rolled magnesium strip, which makes subsequent deep processing difficult. Existing scholars have developed a method of equal-angle rolling, which is a method that can achieve continuous shear deformation. The rolling method can change the grain orientation of the magnesium alloy sheet from the basal orientation to the non-basal orientation, thereby providing more slip systems for the magnesium alloy and greatly improving i...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of strong mechanical anisotropy of rolled magnesium alloy thin strips, serious defects of plate shape and edge cracks, low yield of finished products and low production efficiency of the equal-diameter angle rolling method existing in the traditional rolling process Problem, provide a magnesium alloy thin strip coupled deformation combined rolling system and rolling method

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