Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof

A technology of a hydrogenation reactor and a production method, which is applied in the field of steel smelting, can solve the problems that the strength, toughness and the sensitivity coefficient of tempering embrittlement cannot meet the requirements for the use of hydrogenation equipment, and the thickness is small, and achieve good tempering embrittlement. The effect of chemical sensitivity coefficient, high temperature tensile strength and yield strength, and internal compactness

Inactive Publication Date: 2010-05-26
WUYANG IRON & STEEL +1
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of factors such as the design composition and production process of the currently used steel for hydrogenation reactor reel equipment, the thickness of the finished steel plate is relativ

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
  • Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof
  • Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof
  • Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The steel plate for large-thickness hydrogenation reactor reel equipment, its composition mass percentage is: C: 0.17%, Si: 0.07%, Mn: 0.41%, P: 0.010%, S: 0.010%, Ni: 0.15%, Cr: 2.31%, Nb: 0.014%, Cu: 0.13%, Mo: 0.96%, Sb: 0.003%, Sn: 0.009%, As: 0.010%, V: 0.007%, Al: 0.042%, the rest is Fe and unavoidable impurities .

[0029] A method for producing a steel plate for large-thickness hydrogenation reactor reel equipment, comprising the following steps:

[0030] (1) The molten steel containing the above components is smelted in an electric furnace, and then sent to an LF refining furnace for refining for 45 minutes. During the refining process, when the molten steel is not exposed, the amount of argon blowing is increased, and the slag is sampled and analyzed according to the target. Value adjustment composition, white slag retention time 25 minutes, casting after refining, off-line stacking and slow cooling for 18 hours, cleaning with temperature, transfer to electro...

Embodiment 2

[0036] The steel plate for large-thickness hydrogenation reactor reel equipment, its composition mass percentage is: C: 0.12%, Si: 0.06%, Mn: 0.27%, P: 0.009%, S: 0.007%, Ni: 0.20%, Cr: 1.95%, Nb: 0.010%, Cu: 0.10%, Mo: 1.13%, Sb: 0.003%, Sn: 0.01%, As: 0.012%, V: 0.010%, Al: 0.050%, the rest is Fe and unavoidable impurities .

[0037] A method for producing a steel plate for large-thickness hydrogenation reactor reel equipment, comprising the following steps:

[0038] (1) The molten steel containing the above components is smelted in an electric furnace, and then sent to an LF refining furnace for refining for 60 minutes. During the refining process, when the molten steel is not exposed, the amount of argon blowing is increased, and the slag is sampled and analyzed according to the target. Value adjustment composition, white slag retention time 30 minutes, casting after refining, off-line stacking and slow cooling for 20 hours, cleaning with temperature, transfer to electros...

Embodiment 3

[0044] The steel plate for large-thickness hydrogenation reactor reel equipment, its composition mass percentage is: C: 0.15%, Si: 0.09%, Mn: 0.63%, P: 0.010%, S: 0.008%, Ni: 0.18%, Cr: 2.60%, Nb: 0.020%, Cu: 0.15%, Mo: 1.13%, Sb: 0.003%, Sn: 0.01%, As: 0.016%, V: 0.005%, Al: 0.040%, the rest is Fe and unavoidable impurities .

[0045] A method for producing a steel plate for large-thickness hydrogenation reactor reel equipment, comprising the following steps:

[0046] (1) The molten steel containing the above components is smelted in an electric furnace, and then sent to an LF refining furnace for refining for 50 minutes. During the refining process, when the molten steel is not exposed, the amount of argon blowing is increased, and the slag is sampled and analyzed according to the target. Value adjustment composition, white slag retention time 30 minutes, casting after refining, off-line stacking and slow cooling for 16 hours, cleaning with temperature, transfer to electros...

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
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a large thickness steel plate for hydrogenation reaction chamber reeling equipment and a production method thereof. The steel plate takes Cr-Mo steel as the base, an amount of alloying elements, such as Ni, Cu, Al, Nb, Mn, Cr and the like are added, the contents of harmful elements, such as Sn, Sb, As, P, S and the like are controlled, and the finished large thickness steel is prepared by adopting the processes of electric furnace smelting, LF refining furnace refining, throwing down line stacking for slow-cooling, electroslag remelting, rolling and product forming, diffusion hydrogen annealing, normalizing and tempering heat treatment and the like. The thickness of the steel plate reaches 198 mm, the weight of single steel plate reaches 25 tons, the high temperature tensile strength and yield strength of the steel plate are good, the lower temperature toughness at minus 30 DEG C is good, the steel plate has good tempering embrittlement sensitivity coefficient, and the purity of the produced steel plate is high, the component is uniform, the inner part is compact, and the mechanical property is uniform. The steel plate can meet the operation requirement of hydrogenation reaction chamber reeling equipment, and is suitable for the production of the main structural parts of all hydrogenation reaction chamber reeling equipment.

Description

technical field [0001] The invention belongs to the technical field of steel smelting, and in particular relates to a steel plate for large-thickness hydrogenation reactor reel equipment and a production method thereof. Background technique [0002] At present, Cr-Mo steel is generally used for hydrogenation reactor reel equipment steel, but because the use environment of hydrogenation reactor reel equipment steel is extremely harsh, the performance requirements for steel are also very high. Firstly, it is required to have a large thickness, followed by high strength and toughness to ensure fatigue resistance, and a good temper embrittlement sensitivity coefficient. The structure of the steel plate after heat treatment should ensure the tempered structure content of bainite More than 90%, steel plate grain size ≥ 5 grades, non-metallic inclusions in steel plates are evaluated according to the B method specified in GB / T10561 according to the rating chart II, sulfide (A type),...

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
IPC IPC(8): C22C38/60C22C38/48C22C38/26C21C5/52C21C7/00C22B9/18C21D8/02C21D1/18C21D1/28C21D3/06
CPCY02P10/20
Inventor 龙杰谢良法赵文忠宋向前王志明王会岭袁锦程罗君高吴天育何广霞陈俊奇齐燕孔祥丽温冰李海荣秦红新
Owner WUYANG IRON & STEEL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap