TC16 titanium alloy bar temperature control continuous rolling method

Abstract

The invention discloses a TC16 titanium alloy bar temperature control continuous rolling method. An electromagnetic induction heating device and a cooling bellows device are added on a titanium alloy bar continuous rolling production line to conduct online compensation heating and spraying cooling on titanium bars respectively in due time to conduct effective temperature control continuous rolling on rolled pieces in continuous rolling production. Various parameters in the TC16 titanium alloy bar continuous rolling process are optimized and set, a speed control continuous rolling process is adopted, large deformation heat caused by resistance to deformation in the titanium bar rolling process is reasonably reduced, and the rolled titanium bars meet the tissue and performance requirements. By reasonably controlling a temperature field of the whole continuous rolling process, the titanium alloy bars of the specification that phi ranges from 6 to 30mm can be rolled, and product tissues and performance both meet the requirement. The temperature control continuous rolling method is applicable to small scale TC16 titanium alloy bar industrial production and can effectively reduce TC16 titanium bar deep machining cost.

Description

technical field [0001] The invention relates to the technical field of titanium alloy processing, in particular to a temperature-controlled continuous rolling method for TC16 titanium alloy rods, which is particularly suitable for the continuous rolling production of TC16 titanium alloy rods for high-quality fasteners. Background technique [0002] The temperature in the rolling process of titanium alloy rods plays an important role. It is of great significance to improve the rolling process and improve the rolling quality by mastering the influence of temperature field changes on the rolling quality of titanium rods. The domestic titanium bar rolling processing technology has not yet matured in the control of the temperature field in the rolling process, and its products are difficult to achieve hot rolling production. High-end markets at home and abroad have put forward higher requirements for titanium alloy bars for high-quality fasteners. The typical performance requirem...

AI Technical Summary

Problems solved by technology

Due to the unique atomic and crystal structure of titanium alloys, the mechanical properties of titanium alloys show significant anisotropy. It is a metal alloy that is difficult to deform and process. It has a high yield limit, high rolling resistance, and poor cutting performance.

The existing hot continuous rolling technology of titanium alloy rods and wires is mainly realized through the transformation of existing steel rolling equipment and the adjustment of the production process of titanium billets for preliminary rolling. The temperature field of the traditional rolling technology is not easy to control, and the production of large single weight rolling cannot be realized, and the products have problems such as poor quality and low dimensional accuracy.

Titanium alloys have poor thermal conductivity, and the deformation heat caused by deformation resistance during the rolling process makes the temperature field fluctuate greatly throughout the rolling process, and there is a large temperature gradient between the surface and the center of the rolled piece, which directly affects the microstructure of the titanium rod. performance, which eventually leads to uneven internal structure of the rolled piece, easy cracks on the surface, and it is difficult to obtain qualified titanium rods

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