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

Austenitic stainless steel medium plate for liquid hydrogen container and preparation method of austenitic stainless steel medium plate

An austenitic stainless steel, thick plate technology, applied in non-pressure vessels, gas/liquid distribution and storage, manufacturing tools, etc., can solve the problems of difficult storage and transportation, high cost, easy volatility, etc., and achieve low ferrite content , the effect of stable tissue properties, good plasticity and toughness

Active Publication Date: 2022-07-22
SHANXI TAIGANG STAINLESS STEEL CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the liquefaction of hydrogen is a relatively mature technology, due to the special physical properties of hydrogen, the cost of hydrogen in the liquefaction process is relatively high, and due to the danger and volatility of hydrogen itself, its storage and transportation are difficult. Therefore, how to store and transport liquid hydrogen better and safer is a key direction of current research.

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
  • Austenitic stainless steel medium plate for liquid hydrogen container and preparation method of austenitic stainless steel medium plate
  • Austenitic stainless steel medium plate for liquid hydrogen container and preparation method of austenitic stainless steel medium plate
  • Austenitic stainless steel medium plate for liquid hydrogen container and preparation method of austenitic stainless steel medium plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Table 1 shows the elemental composition of the austenitic stainless steel sheet of this example.

[0070] The preparation process of the austenitic stainless steel plate of the present embodiment is as follows:

[0071](1) Control the heating temperature of the continuous casting billet to 1250°C, control the total heating time according to 9h, cool it to 280°C naturally, and then use the 20# grinding wheel after grinding with the 16# grinding wheel, and the grinding rate is 1.5%. The ground slab is heated to 1260℃, and the heating time is controlled by 270min.

[0072] (2) Roll the continuous casting slab to a width of 2000mm with a pass deformation rate of 15% on the blooming mill, and then continue to roll it to a thickness of 42mm. The temperature of the rough rolling process is above 1100°C throughout the process. The finishing rolling unit starts rolling at a temperature of 1030 ℃, and the finishing rolling process does not use cooling water, and the thickness of...

Embodiment 2

[0076] Table 1 shows the elemental composition of the austenitic stainless steel sheet of this example.

[0077] The preparation process of the austenitic stainless steel plate of the present embodiment is as follows:

[0078] (1) Control the heating temperature of the continuous casting billet to 1260°C, control the total heating time according to 10h, and cool it to 260°C naturally. After grinding with a 16# grinding wheel, use a 20# grinding wheel for grinding, and the grinding rate is 2.0%. The ground slab was heated to 1265℃, and the heating time was controlled by 240min.

[0079] (2) On the blooming mill, the continuous casting slab is rolled to a width of 2200mm with a pass deformation rate of 15%, and then continues to be rolled to a thickness of 46mm. The temperature of the rough rolling process is above 1090℃. The finishing rolling unit starts rolling at a temperature of 1020 ℃, and cooling water is not used in the whole finishing rolling process, and the thickness ...

Embodiment 3

[0084] Table 1 shows the elemental composition of the austenitic stainless steel sheet of this example.

[0085] The preparation process of the austenitic stainless steel plate of the present embodiment is as follows:

[0086] (1) Control the heating temperature of the continuous casting billet to 1245°C, control the total heating time according to 10.5h, and cool it to 290°C naturally. The ground slab was heated to 1255℃, and the heating time was controlled by 245min.

[0087] (2) Roll the continuous casting slab to a width of 1800mm with a pass deformation rate of 15% on the blooming mill, and then continue to roll it to a thickness of 35mm. The temperature of the rough rolling process is above 1080°C. The finishing rolling unit starts rolling at a temperature of 1015°C. Cooling water is not used throughout the finishing rolling process, and the thickness of the rolled product is 9mm.

[0088] (3) The hot-rolled sheet is solution-treated in a normalizing furnace, and the h...

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
impact absorption energyaaaaaaaaaa
impact absorption energyaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

The invention provides an austenitic stainless steel medium plate for a liquid hydrogen container. The austenitic stainless steel medium plate comprises, by weight, 0.050%-0.080% of C, 0.40%-0.75% of Si, 1.0%-1.7% of Mn, 16.0%-17.0% of Cr, 10.5%-11.50% of Ni, 2.0%-2.5% of Mo, smaller than or equal to 0.030% of P, smaller than or equal to 0.002% of S, 0.06%-0.100% of N, 0 < = Cu < = 0.3%, 0 < = Co < = 0.5% and the balance Fe and inevitable impurities. The invention further provides a preparation method of the austenitic stainless steel medium-thickness plate for the liquid hydrogen container. The preparation method comprises the steps of continuous casting billet heating, hot rolling and solution treatment. The stainless steel medium-thickness plate is stable in structure performance and low in ferrite content, has good plasticity and toughness under the low-temperature condition, and can well meet the requirement of a liquid hydrogen container for a stainless steel material.

Description

technical field [0001] The invention relates to the technical field of iron and steel smelting, in particular to an austenitic stainless steel medium and heavy plate for liquid hydrogen containers and a preparation method thereof. Background technique [0002] As a clean energy, hydrogen has the advantages of high efficiency, cleanliness, pollution-free and sustainable. The efficient storage and transportation of hydrogen is an important link in the development of the hydrogen industry. The storage methods of hydrogen mainly include high-pressure hydrogen storage, liquid hydrogen storage, metal hydride hydrogen storage, and organic liquid hydrogen storage. The density of liquid hydrogen is 845 times that of gaseous hydrogen at normal temperature and pressure, and twice that of 70Mpa high-pressure hydrogen. Therefore, compared with high-pressure gaseous hydrogen, liquid hydrogen has high hydrogen storage density, high safety, and is suitable for long-distance storage and tran...

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): C22C38/02C22C38/04C22C38/44C22C38/42C22C38/52C21D6/00C21D8/02C21D9/00F17C3/00
CPCC22C38/02C22C38/04C22C38/44C22C38/001C22C38/42C22C38/52C21D8/0205C21D8/0226C21D8/0263C21D9/0081C21D6/004C21D6/005C21D6/007C21D6/008F17C3/00C21D2211/005F17C2203/0643Y02E60/32
Inventor 莫金强张威李阳徐梅
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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