Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation process of titanium and titanium alloy thick plate

A preparation process and titanium alloy technology, which is applied in metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as production limitations of titanium and titanium alloy thick plates, and achieve the effect of good plate shape and high thickness precision

Inactive Publication Date: 2020-04-07
湖南湘投金天钛金属股份有限公司
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the production of titanium and titanium alloy thick plates is limited due to problems in equipment capacity, plate shape, size, and structural properties, especially the production and preparation of titanium and titanium alloy thick plates
Restricted by the equipment capacity of the titanium industry, there is currently no manufacturer producing titanium and titanium alloy thick plates with a width exceeding 2m and a thickness exceeding 100mm

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation process of titanium and titanium alloy thick plate
  • Preparation process of titanium and titanium alloy thick plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This example provides a preparation process for titanium and titanium alloy thick plates, the steps include:

[0041] S1: Insulate the slab;

[0042] S2: removing the oxide layer on the surface of the slab after the treatment in step S1;

[0043] S3: rolling the slab processed in step S2 to the target width for the first time;

[0044] S4: Reversing the direction of the slab processed in step S3 and then rolling it to the target thickness for the second time;

[0045] S5: Straightening the slab processed in step S4.

[0046] Among them, the raw material slab thickness of the titanium and titanium alloy thick plate is 350-500 mm.

[0047] The thickness of titanium and titanium alloy thick plates is 50-200mm.

[0048] The width of titanium and titanium alloy thick plates is 1400-3000mm.

[0049] The temperature of the heat preservation treatment is 10 to 20° C. below the phase transition temperature.

[0050] The heat preservation treatment time is 14-20 hours.

[...

Embodiment 2

[0063] In this example, a thick TC4 alloy plate with a width of 1800 mm and a thickness of 60 mm was actually rolled. The specific process is:

[0064] S1: Insulate the slab;

[0065] S2: removing the oxide layer on the surface of the slab after the treatment in step S1;

[0066] S3: rolling the slab processed in step S2 to the target width for the first time;

[0067] S4: Reversing the direction of the slab processed in step S3 and then rolling it to the target thickness for the second time;

[0068] S5: Straightening the slab processed in step S4.

[0069] Among them, the raw material slabs of titanium and titanium alloy thick plates have a thickness of 360mm and a width of 1200mm.

[0070] In step S1, the temperature of the heat preservation treatment is 10-20°C below the phase transition temperature, and the phase transition point of TC4 is 990°C, so the heat preservation temperature should be 970°C. The time of heat preservation treatment is 15h.

[0071] In step S4...

Embodiment 3

[0074] In this example, a thick pure titanium plate with a width of 2000 mm and a thickness of 160 mm was actually rolled. The specific process is:

[0075] S1: Insulate the slab;

[0076] S2: removing the oxide layer on the surface of the slab after the treatment in step S1;

[0077] S3: rolling the slab processed in step S2 to the target width for the first time;

[0078] S4: Reversing the direction of the slab processed in step S3 and then rolling it to the target thickness for the second time;

[0079] S5: Straightening the slab processed in step S4.

[0080] Among them, the raw material slab thickness of titanium and titanium alloy thick plate is 480mm.

[0081] The temperature of heat preservation treatment is 10-20°C below the phase transition temperature, and the heat preservation temperature of pure titanium is 900°C. The time of heat preservation treatment is 18h.

[0082] In step S3, the first rolling is carried out until the width is rolled from 1200mm to 180...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
widthaaaaaaaaaa
phase transition temperatureaaaaaaaaaa
Login to View More

Abstract

The embodiment of the invention provides a preparation process of a titanium and titanium alloy thick plate. According to the preparation technology, a plate blank is pretreated, and technological parameters in the rolling process are controlled; production of titanium and titanium alloy thick plates can be realized by utilizing the existing equipment of a steel mill; equipment does not need to bereconstructed; the problems of equipment limitation and high investment of large-opening hot rolling equipment in the current titanium industry are solved; the preparation process of the titanium andtitanium alloy thick plate provided by the embodiment of the invention is a one-fire forming process; a process for preparing titanium and titanium alloy thick plates by forging in the prior art canbe replaced; the thickness of the prepared titanium and titanium alloy thick plate can reach 350-500 mm, the width of the prepared titanium and titanium alloy thick plate can reach 1400-2000 mm, the plate shape is good, the thickness precision is high, the same plate difference can be controlled within + / -1%, the thickness hit rate exceeds 99%, the straightness of the offline plate is smaller than5 mm / m, and the surface of the plate is smooth and in dark gray.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, and in particular relates to a preparation process of titanium and titanium alloy thick plates. Background technique [0002] Ships are required for transportation, mining, and combat on the ocean. Ships operate in the ocean all year round. The complexity of their overall structure requires the materials used to have good corrosion resistance, high specific strength, and good weldability. Ships with excellent performance can improve transportation combat capability, increase service life and reduce costs. Therefore, the development and utilization of ship materials with excellent performance is the key. [0003] Titanium is a very abundant element on the earth. Titanium and titanium alloys have many excellent properties, such as wide range of strength, excellent mechanical properties, unique physical properties (such as non-magnetic), high specific strength, excellent corrosion resistance...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B15/00
CPCB21B1/22B21B15/00B21B2261/04B21B2261/06B21B2261/20B21B2265/10
Inventor 刘正乔王雪萌江彪郭振华王浩涂爱东陈彦辉
Owner 湖南湘投金天钛金属股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com