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A manufacturing method for producing industrial pure titanium plate by adopting the second-fire process of medium and heavy plate rolling mill

A technology of industrial pure titanium and manufacturing method, applied in the direction of metal rolling, etc., can solve the problems of low investment and production cost, high production efficiency, surface quality, poor structure performance, etc., to improve surface quality, improve performance quality, and improve products performance effect

Active Publication Date: 2019-05-24
GUANGDONG POLYTECHNIC NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a manufacturing method for producing industrial pure titanium plates using the second-fire process of medium-thick plate rolling mills, which solves the problems of relatively poor surface quality and microstructure in the production of medium-thick titanium plates. The scheme of the present invention produces medium-thick titanium plates with low investment and production costs, high production efficiency, good surface quality, and performance that meets and exceeds the requirements of national standards.

Method used

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  • A manufacturing method for producing industrial pure titanium plate by adopting the second-fire process of medium and heavy plate rolling mill
  • A manufacturing method for producing industrial pure titanium plate by adopting the second-fire process of medium and heavy plate rolling mill

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Embodiment 1

[0021] A manufacturing method for producing industrial pure titanium plates by adopting the second fire forming process of a medium and heavy plate rolling mill. The chemical composition and content of the forging blank are: Fe is 0.01wt%, C is 0.04wt%, N is 0.002wt%, H is 0.004wt%, O is 0.07wt%, P is 0.012wt%, S is 0.002wt% %, the rest is Ti and inevitable impurities. The hot rolling process is as follows: a forging blank with a thickness of 150mm and a width of 1200mm is placed in the preheating section of a heating furnace at 400°C, preheating for 60min, heating section 900°C, heating time 200min, soaking section temperature 920°C, soaking time 60min, In the soaking section, the lower surface temperature of the control blank is 10°C higher than the upper surface temperature, and the heating furnace discharge temperature is 910°C. After the heating furnace is discharged, high-pressure water dephosphorization is carried out, and the dephosphorization pressure is 12MPa. The re...

Embodiment 2

[0029] A manufacturing method for producing industrial pure titanium plates by adopting the second igneous material process of a medium and heavy plate rolling mill. The chemical composition and content of the forging blank are: Fe is 0.03wt%, C is 0.013wt%, N is 0.005wt%, H is 0.001wt%, O is 0.07wt%, P is 0.012wt%, S is 0.002wt% %, the rest is Ti and inevitable impurities. The hot rolling process is as follows: a forging blank with a thickness of 150mm and a width of 1200mm is placed in the preheating section of the heating furnace at 500°C, 40min in preheating, 950°C in the heating section, heating time 150min, soaking section temperature 940°C, soaking time 90min, The discharge temperature of the heating furnace is 935℃. In the soaking section, the lower surface temperature of the blank is controlled to be 10℃ higher than the upper surface temperature. After the heating furnace is discharged, high-pressure water dephosphorization is carried out, and the dephosphorization pre...

Embodiment 3

[0038] A manufacturing method for producing industrial pure titanium plates by adopting the second igneous material process of a medium and heavy plate rolling mill. The chemical composition and content of the forging blank are: Fe is 0.02wt%, C is 0.017wt%, N is 0.004wt%, H is 0.001wt%, O is 0.06wt%, P is 0.011wt%, and S is 0.003wt %, the rest is Ti and inevitable impurities. The hot rolling process is as follows: a forging blank with a thickness of 150mm and a width of 1200mm is placed in the preheating section of the heating furnace at 460°C, preheating for 50min, heating section 950°C, heating time 200min, soaking section temperature 930°C, soaking time 60min, The temperature of the heating furnace is 935℃. After exiting the heating furnace, high-pressure water dephosphorization is carried out, and the dephosphorization pressure is 12MPa. After dephosphorization, it enters the medium and heavy plate four-roll reversible rolling mill for 5 round-trip rolling, and the rolling...

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Abstract

The invention discloses a method for manufacturing a commercial pure titanium plate through a twice-heating production process by using a heavy and medium plate mill. The method sequentially comprises the following steps of casting a blank, forging, primarily heating, primarily dephosphorizing, primarily rolling, cooling, secondarily heating, secondarily dephosphorizing, secondarily rolling, annealing, and postprocessing; the blank is obtained after the forging operation; an intermediate slab with the thickness of 35-60 mm is obtained after the primary rolling operation, and the titanium plate with the thickness of 9-40 mm is obtained after the secondary rolling. The invention aims at providing the method for manufacturing the commercial pure titanium plate through the twice-heating production process by using the heavy and medium plate mill. The problems of relatively low surface quality and structure property of the heavy and medium titanium plate in the one-time heating production are solved, and if the scheme is adopted to produce the heavy and medium titanium plate, the invested production cost is low, the production efficiency is high, the surface quality is high, and the property meets and is higher than the national standard requirement.

Description

Technical field [0001] The invention relates to the technical field of non-ferrous metal material manufacturing, in particular to a manufacturing method for producing industrial pure titanium plates by adopting a two-fire forming process of a medium and heavy plate rolling mill. Background technique [0002] Because titanium and titanium alloy materials have excellent comprehensive properties such as low density, high specific strength, corrosion resistance, and good structural stability, titanium and titanium alloy materials have developed rapidly in recent decades. my country’s titanium industry started from the requirements of national defense and military industry in the 1960s. After 50 years of development, great achievements have been made. At present, titanium processing materials are used in aviation, aerospace, shipbuilding, metallurgy, chemicals, equipment, medical treatment, pharmaceuticals, and marine engineering. , Sports and leisure and other fields have developed ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/34C22F1/18C22C14/00
CPCB21B1/34B21B2201/06B21B2265/10C22C14/00C22F1/183
Inventor 高吉祥
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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