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Manufacturing method for producing industrial titanium plate by adoption of 2800-millimeter heavy and medium plate mill

A technology for production industry and manufacturing method, which is applied in the field of manufacturing industrial titanium plates using a 2800mm medium and heavy plate rolling mill, can solve the problems of high investment cost, low output and low equipment utilization rate, save social investment and improve product performance. , the effect of improving performance quality

Inactive Publication Date: 2017-05-10
GUANGDONG POLYTECHNIC NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

About 48,400 tons, its specifications range from 0.3 to 70mm in thickness and 2500mm in width. Plate processing presents the characteristics of many specifications and low output of a single specification. If you invest in the construction of a metal titanium plate rolling production line alone, the investment cost is high and the equipment utilization rate is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention discloses a manufacturing method for producing industrial titanium plates by adopting a 2800mm plate rolling mill. The chemical composition and content of the forging billet are: Fe is 0.02wt%, C is 0.04wt%, N is 0.005wt%, H is 0.005wt%, O is 0.02wt%, P is 0.012wt%, S is 0.002wt% %, the rest is Ti and unavoidable impurities. The hot rolling process is as follows: heating the forged billet with a thickness of 150mm and a width of 1200mm to 920°C, using a four-roll reversing rolling mill to perform back-and-forth rolling for 11 passes, and performing the first 5 passes of rolling, and the rolling volume of each pass is respectively 24mm, 24mm, 24mm, 22mm, 22mm, the last 3 passes of rolling adopt small pass reduction rate, the pass reduction rate is 8.6%, 3.2%, 1.3% respectively, the rolling thickness is 20mm, the finish rolling exit temperature 660°C, immediately enter the laminar flow cooling device after rolling, the cooling rate is 2°C / s, cool to 400°C, ...

Embodiment 2

[0024] The invention discloses a manufacturing method for producing industrial titanium plates by adopting a 2800mm plate rolling mill. The chemical composition and content of the forging billet are: Fe is 0.09wt%, C is 0.01wt%, N is 0.002wt%, H is 0.007wt%, O is 0.05wt%, P is 0.010wt%, S is 0.003wt% %, the rest is Ti and unavoidable impurities. The hot rolling process is as follows: heating the forged billet with a thickness of 150mm and a width of 1200mm to 900°C, using a four-roller reversing rolling mill to perform back-and-forth rolling for 11 passes, followed by 5 passes before rolling, and the rolling volume of each pass is respectively 24mm, 24mm, 24mm, 22mm, 22mm, the last 3 passes of rolling adopt small pass reduction rate, the pass reduction rate is 5.4%, 4.2%, 1.0% respectively, the rolling thickness is 12mm, the finish rolling exit temperature 680°C, immediately enter the laminar flow cooling device after rolling, the cooling rate is 5°C / s, cool to 450°C, then en...

Embodiment 3

[0027] The invention discloses a manufacturing method for producing industrial titanium plates by adopting a 2800mm plate rolling mill. The chemical composition and content of the forging billet are: Fe is 0.05wt%, C is 0.03wt%, N is 0.002wt%, H is 0.002wt%, O is 0.08wt%, P is 0.01wt%, S is 0.003wt% %, the rest is Ti and unavoidable impurities. The hot rolling process is as follows: heating the forged billet with a thickness of 150mm and a width of 1200mm to 1050°C, using a four-roller reversing rolling mill to perform back-and-forth rolling for 15 passes, and the first 5 passes for rolling, and the rolling volume of each pass is respectively 25mm, 25mm, 25mm, 23mm, 23mm, the last 3 passes of rolling adopt small pass reduction rate, the pass reduction rate is 5.6%, 2.2%, 1.2% respectively, the rolling thickness is 9mm, the finish rolling exit temperature 660°C, immediately enter the laminar flow cooling device after rolling, the cooling rate is 8°C / s, cool to 450°C, then ente...

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Abstract

The invention discloses a manufacturing method for producing an industrial titanium plate by the adoption of a 2800-millimeter heavy and medium plate mill. The manufacturing method sequentially comprises the following steps of blank casting, forging, blank heating, phosphorus removing, rolling, cooling, annealing and post-treatment, wherein in the rolling step, the 2800-millimeter four-roller reversible mill is adopted to roll the blank back and forth for 7-15 passes, the rolling reduction quantity is smaller than or equal to 30 mm, the rolling reduction rate is smaller than or equal to 40%, the rolling starting temperature is higher than or equal to 850 DEG C, and the rolling ending temperature is higher than or equal to 650 DEG C. The manufacturing method for producing the industrial titanium plate by the adoption of the 2800-millimeter heavy and medium plate mill aims to achieve the purposes that the production cost is reduced, the production efficiency is improved, the surface quality of the product is good, the performance of the product can meet the national standards and be higher than the national standards.

Description

technical field [0001] The invention belongs to the technical field of manufacturing nonferrous metal materials, and in particular relates to a manufacturing method for producing industrial titanium plates by adopting a 2800mm plate rolling mill. Background technique [0002] Titanium and titanium alloys have high specific strength, good corrosion resistance and biocompatibility, so they are widely used in aerospace, marine, petrochemical and biological engineering and other fields. [0003] The use of titanium in a country can reflect the overall level of the country's titanium material processing field. For example, in the supersonic reconnaissance aircraft of the United States, titanium accounts for 93% of the weight of the entire aircraft; the Russian Navy's Sierra II titanium alloy attack nuclear submarine is the world's most One of the advanced nuclear submarines, because the entire submarine shell is made of titanium alloy, which is light in weight and high in strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18C22C14/00
CPCC22F1/183C22C14/00
Inventor 高吉祥
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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