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Hot rolling device and hot rolling method for TiA alloy plate

An alloy sheet and heating device technology, applied in metal rolling, temperature control and other directions, can solve the problems of temperature drop and operation difficulties, and achieve the effect of improving surface quality and production efficiency

Active Publication Date: 2017-06-13
BEIJING GUOWANG FUDA SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a TiAl alloy plate hot rolling device and hot rolling method, which can effectively solve the problems of temperature drop and difficult operation in the rolling process of TiAl alloy plate, especially for large-size TiAl alloy plate

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  • Hot rolling device and hot rolling method for TiA alloy plate
  • Hot rolling device and hot rolling method for TiA alloy plate

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Embodiment 1

[0048] This embodiment provides a TiAl alloy plate hot rolling device, its structure is as follows figure 1 shown. The device includes a roller table, and the second heating furnace 1, the first heating furnace 3, the heat preservation cover 51 before the rolling mill, the hot rolling mill 6, the heat preservation cover 52 after the rolling mill and the roller hearth tunnel heat treatment furnace 9 arranged in sequence beside the roller table ;

[0049] The roller table includes a furnace inner roller table 10 and an outer furnace roller table 2, wherein the furnace inner roller table 10 includes several roller table groups (each roller table group contains 5 roller tables), wherein each roller table group can be separated Rotation or at least two groups of linkages, each roller table group can rotate forward or reverse, and the rotation speed is 0.6m / min; the roller table 2 outside the furnace before and after the hot rolling mill can rotate independently, and can rotate for...

Embodiment 2

[0059] This embodiment provides a method for hot-rolling TiAl alloy sheets, which is carried out using the device in Embodiment 1, and the specific process is as follows figure 2 shown. The method includes the following steps:

[0060] (1) Supply of raw materials: provide a Ti-43.5Al-4Nb-1Mo-0.1B (at.%) alloy (abbreviation: TNM alloy) slab, and coat the surface of the alloy slab with a high-temperature oxidation-resistant coating;

[0061] (2) Heating: place the TNM alloy slab in the second heating furnace 1, heat it to 1180°C, and transport it into the first heating furnace 3 through the roller table 2 after being released from the furnace, and heat it to 1255°C (the temperature of forward rolling ), keep warm for 30min;

[0062] (3) Preheating work rolls: before the TNM alloy slab leaves the first heating furnace 3, the surface temperature of the upper work roll 71 and the lower work roll 72 of the hot rolling mill 6 is heated to 500 by a continuous online high-frequency ...

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Abstract

The invention relates to a hot rolling device and hot rolling method for a TiA alloy plate. The device comprises the following components: a roller way, a second heating furnace, a first heating furnace on the roller way, a front thermal insulation cover of a rolling mill, a hot mill, a rear thermal insulation cover of the rolling mill and a roller hearth-type tunnel heat treatment furnace, wherein the second heating furnace, the first heating furnace, the front thermal insulation cover of the rolling mill, the hot mill, the rear thermal insulation cover of the rolling mill and the roller hearth-type tunnel heat treatment furnace are sequentially arranged next to the roller way; the first heating furnace is a roller hearth-type tunnel heating furnace; the front thermal insulation cover of the rolling mill and the rear thermal insulation cover of the rolling mill are located at an inlet side and an outlet side of the hot roll separately; and the roller hearth-type tunnel heat treatment furnace sequentially comprises a high-temperature zone, a medium-temperature zone and a low-temperature zone. According to the hot rolling method, the problem that cooling and operation are difficult in the rolling process of the TiA alloy plate can be effectively solved, and the hot rolling method is especially suitable for the large-size TiA alloy plate.

Description

technical field [0001] The invention relates to a rolling device and a hot rolling method of a TiAl alloy plate, in particular to a hot rolling device and a hot rolling method for rolling a large-sized TiAl alloy plate. Background technique [0002] TiAl alloy is a new type of lightweight heat-resistant structural material, its specific gravity is less than 50% of that of nickel-based alloys, and its operating temperature can reach 700°C-900°C. It has the advantages of light weight, high strength, corrosion resistance, wear resistance, and high temperature resistance. , has gradually become an important candidate material in the fields of aviation and aerospace. In addition to being directly used as a structural material, the TiAl alloy plate can also be used as a pre-formed material for superplastic forming, and can be used to make parts of near-net shape aviation and aerospace engines, as well as wings and shells of ultra-high-speed aircraft. [0003] The preparation of T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B3/00B21B1/34B21B37/74
CPCB21B1/34B21B3/00B21B37/74B21B2261/20
Inventor 曾尚武赵爱民张磊江海涛罗琳
Owner BEIJING GUOWANG FUDA SCI & TECH DEV
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