Method for producing metallic titanium plate using medium-wide strip hot rolling machine set

Abstract

The invention discloses a method for producing a metallic titanium plate by adopting a medium-wide band heat rolling set. The method comprises the following steps: heating a titanium plate blank with a thickness of between 50 and 90 millimeters in a roller-hearth type soaking furnace to between 800 and 1,000 DEG C, controlling inlet temperature of the titanium plate blank entering the medium-wide band heat rolling set at a temperature of between 800 and 950 DEG C, controlling process temperature to between 700 and 950 DEG C, and keeping final rolling temperature at a temperature of between 700 and 800 DEG C after fine rolling for seven times; and well controlling roll gap width, depressing rate, roll force and roll (rolling) speed of each stander of the heat rolling set, controlling the rolling speed of the titanium plate rolled by the tail stander of the heat rolling set at between 4.0 and 8.0 meters per second, and coiling the titanium plate by a coiling machine after cooling the titanium plate by water, wherein the coiling temperature is between 550 and 680 DEG C. The method uses a CSP production line to produce the non-ferrous metallic titanium plate (coil) for domestic initiation, and has extremely great economic and social benefits.

Description

technical field [0001] The invention relates to a method for manufacturing metal titanium plates, in particular to a method for producing metal pure titanium plates by using a medium-band hot-rolling unit of a CSP thin slab continuous casting and rolling production line. Background technique [0002] Titanium is an important strategic material developed with the needs of military industries such as aviation, ships and weapons after the Second World War. It is a non-ferrous metal with low density (ie low specific gravity), high specific strength, high temperature and high strength. And good corrosion resistance, it is a "functional metal material" in the fields of memory, hydrogen storage, superconductivity and biomedicine. my country's research, design, production and application of titanium are carried out simultaneously with the establishment and development of the aviation industry system, and gradually expanded to military fields such as aerospace weapons and ships, as w...

AI Technical Summary

Problems solved by technology

[0003] Due to the special calendering performance of titanium metal, it is very difficult to construct a production line for titanium metal plate and strip. In addition, metal titanium is very expensive and the amount of use is small. The construction of an independent metal titanium plate and strip production line is bound to require too much investment, and the problem of excess production capacity of the production line is more prominent. At present, there is no large-scale metal titanium plate and strip production line in my country, especially the use of thin slab continuous casting and rolling process of ferrous metal rolling to produce pure metal titanium plate is still unique in China, and no other reports have been seen.

High-quality metal pure titanium plates and strips mainly rely on imports from abroad, which seriously restricts the development of my country's aerospace, aviation and other aviation industries