Hot continuous rolling production line of titanium and titanium alloy wire rod and production process

Abstract

The invention relates to a hot continuous rolling production line of titanium and a titanium alloy wire rod and a production process. An axial rolling production line of titanium and the titanium alloy wire rod is formed by vertically and sequentially connecting a heating furnace, a transverse two-roller roughing rolling unit, a high rigidity short stress line vertical two-roller intermediate rolling unit, a high rigidity short stress line vertical two-roller pre-finishing rolling unit, a Morgan type finishing rolling unit and a low speed active wire coil collecting barrel. Heat by deformation generated by resistance to deformation during rolling is reduced with the adoption of a low speed continuous rolling process, so that the microstructure and properties of a rolled piece are ensured, and qualified wire rods are directly produced. The production line provided by the invention can roll all titanium and titanium alloy wire rods with a diameter of 5-12mm, so that production of high precision, large rolled heavy titanium and titanium alloy wire rods can be realized, and the production efficiency is high and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of titanium and titanium alloy processing, and in particular relates to a hot continuous rolling production line and production technology of titanium and titanium alloy wire rods. Background technique [0002] Due to their unique atomic structure and crystal structure, titanium and titanium alloys are hard-to-deform and difficult-to-machine metals. The existing technology generally adopts segmented multi-fire heating and rolling titanium and titanium alloy wire rods, but it cannot achieve large-scale weight (generally The weight of a single coil of wire rod does not exceed 10Kg), and the rolling quality is poor, the cost is high, and the production efficiency is low. Due to the extremely poor thermal conductivity of titanium and titanium alloys, the deformation heat generated by the deformation resistance during rolling is not easily transmitted, especially when rolling high-strength and high-temperature ti...

AI Technical Summary

Problems solved by technology

[0002] Due to their unique atomic structure and crystal structure, titanium and titanium alloys are hard-to-deform and difficult-to-machine metals. The existing technology generally adopts segmented multi-fire heating and rolling titanium and titanium alloy wire rods, but it cannot achieve large-scale weight (generally The weight of a single coil of wire does not exceed 10Kg), and the rolling quality is poor, the cost is high, and the production efficiency is low

Due to the extremely poor thermal conductivity of titanium and titanium alloys, the deformation heat generated by the deformation resistance during rolling is not easily transmitted, especially when rolling high-strength and high-temperature titanium alloys, overheated structures are easily formed inside the metal, resulting in overheated structures in the rolled piece , Inhomogeneity, the internal structure and performance of the rolled piece cannot be guaranteed, and it is difficult to obtain qualified wire

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