Method for heating large titanium and titanium alloy slabs

A heating method and technology for titanium alloys are applied in the heating field of large titanium slabs of titanium and titanium alloys, which can solve the problems of heat insufficiency, short service life, slow heating speed, etc. scratch effect

Inactive Publication Date: 2011-04-27
WESTERN TITANIUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the atmosphere in the furnace of the electric heating method is controllable, the temperature uniformity is good, and the pollution is less, but the heating speed is slow and the production efficiency is low; the gas heating method, the atmosphere in the furnace is not easy to control, the heating speed is fast, and the temperature uniformity is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Heating the TA2 titanium slab with a thickness of 200mm, a width of 1200mm, and a length of 1700mm, using a stainless steel-carbon steel-stainless steel composite backing plate with a thickness ratio of 4 and a specification of 50×1600×2400mm. The specific heating process is:

[0026] 1) Transport the composite backing plate to the door of the push-steel heating furnace, and evenly distribute 4 50mm high angle steels on the composite backing plate, and then place the titanium slab on the angle steel;

[0027] 2) Use a steel pusher to push the composite backing plate and titanium slab into the push-steel heating furnace. After preheating at 600~650℃ for 40min, the temperature is raised to 840~860℃ for 140min, and then at 840~860℃ for 80min. ;

[0028] 3) After the heating is completed, the titanium slab is taken out of the heating furnace and separated from the composite backing plate on the close-packed roller table in front of the rolling mill, and the titan...

Example Embodiment

[0030] Example 2

[0031] Heating the TA2 titanium slab with a thickness of 180mm, a width of 1100mm and a length of 1500mm, using a stainless steel-carbon steel-stainless steel composite backing plate with a thickness ratio of 6 and a specification of 50×1600×2400mm. The specific heating process is:

[0032] 1) Transport the composite backing plate to the door of the push-steel heating furnace, and evenly distribute 6 70mm high angle steels on the composite backing plate, and then place the titanium slab on the angle steel;

[0033] 2) Push the composite backing plate and the titanium slab into the push-steel heating furnace together with a steel pusher. After preheating at 750~800℃ for 60 minutes, heat it to 940~960℃ for 100min, and then keep it at 940~960℃ for 40 minutes;

[0034] 3) After the heating is completed, the titanium slab is taken out of the heating furnace and separated from the composite backing plate on the close-packed roller table in front of the rolling mill, and th...

Example Embodiment

[0036] Example 3

[0037] Heating the TC4 titanium slab with a thickness of 240mm, a width of 1000mm, and a length of 1500mm, using a stainless steel-carbon steel-stainless steel composite backing plate with a thickness ratio of 5 and a specification of 50×1600×2400mm. The specific heating process is:

[0038] 1) Transport the composite backing plate to the door of the push-steel heating furnace, and evenly distribute 8 angle steels with a height of 70mm on the composite backing plate, and then place the titanium slab on the angle steel;

[0039] 2) Use a steel pusher to push the composite backing plate and titanium slab into the push-steel heating furnace. After preheating at 700~750℃ for 50min, the temperature is raised to 860~900℃ for 120min, and then at 860~900℃ for 60min. ;

[0040] 3) After the heating is completed, the titanium slab is taken out of the heating furnace and separated from the composite backing plate on the close-packed roller table in front of the rolling mill, a...

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Abstract

The invention discloses a method for heating large titanium and titanium alloy slabs. The method comprises the following steps of: allocating and transporting a composite base plate to a furnace door of a pusher-type heating furnace, arranging angle iron on the composite base plate, and arranging the titanium slabs on the angle iron, wherein the composite base plate is a composite plate compounded by a carbon steel plate serving as a middle base material and stainless steel plates serving as upper and lower sheathing materials through explosion; and pushing the composite base plate and the titanium slabs together into the pusher-type heating furnace by using a pusher, heating, and separating. The stainless steel-carbon steel-stainless steel composite base plate is used as a base plate for heating the titanium slabs to effectively prevent scratches on the surfaces of the slabs in the heating process; the angle iron prevents the slabs from directly contacting the base plate so as not to cause nonuniform heating of the slabs; and the service life of the base plate is not shortened and the manufacturing cost of the base plate is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of titanium and titanium alloy processing, in particular to a method for heating titanium and titanium alloy large titanium slabs based on a pusher type heating furnace. Background technique [0002] Due to their high specific strength, excellent corrosion resistance and good biocompatibility, titanium and titanium alloys are widely used in aerospace, petrochemical, pharmaceutical, salt, metallurgy and medical industries, and are known as all-round metals. The application prospects of titanium and titanium alloy plates are very broad, and the trend is promising. With the development of the aviation industry at home and abroad, the use of titanium and titanium alloys on large transport aircraft continues to expand, especially the demand for large-scale titanium plates is also increasing. Therefore, the research, development and application of large-scale titanium plate thermal processing technology is becomi...

Claims

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Application Information

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IPC IPC(8): C22F1/18
Inventor 陈钧伟王瑞琴范晗刘宇张鹏张晓卫吕利强李辉马宏旺张清
Owner WESTERN TITANIUM TECH
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