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High-strength torsion resistant steel and preparation method thereof

A high-strength, breaking steel technology, applied in the field of metal smelting, can solve the problems of twist breaking, safety and property impact, poor toughness, etc., and achieve the effect of improving toughness, improving mechanical properties, and improving plasticity and toughness.

Inactive Publication Date: 2018-06-01
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Today, steel has become one of the most used materials in the world due to its low price and reliable performance. It is an indispensable component in construction, manufacturing and people's daily life. It can be said that steel is the material basis of modern society, so The strength and quality of steel greatly affect our daily life. The existing steel basically meets the strength requirements, but its toughness is poor. will affect

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  • High-strength torsion resistant steel and preparation method thereof
  • High-strength torsion resistant steel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-strength torsion-resistant steel provided in this example has the following mass percentages of chemical components: C: 0.22%, Co: 1.25%, Ni: 0.88%, Cr: 4.57%, Mo: 0.96%, Al: 0.53 %, Ti: 0.58%, Si: 0.16%, V: 0.09%, W: 0.13%, Nb: 0.06%, Ca: 0.004%, Mn: 0.12%, styrene-butadiene-styrene block copolymer : 0.06%, rare earth element: 1.66%, the balance is Fe and unavoidable impurities.

[0029] Wherein, the rare earth elements are composed of La, Ce, Pr, Tb, and Tm in a mass ratio of 1:1:1:1:1.

[0030] A method for preparing high-strength torsion-resistant steel provided in this embodiment includes the following steps:

[0031] S1: Put the remaining raw materials except styrene-butadiene-styrene block copolymer and rare earth elements into the melting furnace according to the mass percentage, smelt the raw materials into alloy solution, then perform desulfurization and deoxidation treatment, and then add refining agent to carry out Refining and slag removal;

[003...

Embodiment 2

[0040] A high-strength torsion-resistant steel provided in this example has the following mass percentages of chemical components: C: 0.49%, Co: 1.38%, Ni: 1.34%, Cr: 5.45%, Mo: 1.35%, Al: 0.59 %, Ti: 0.78%, Si: 0.19%, V: 0.14%, W: 0.16%, Nb: 0.09%, Ca: 0.009%, Mn: 0.26%, styrene-butadiene-styrene block copolymer : 0.09%, rare earth element: 2.53%, the balance is Fe and unavoidable impurities.

[0041] Wherein, the rare earth elements are composed of La, Ce, Pr, Tb, and Tm in a mass ratio of 1:1:1:1:1.

[0042] A method for preparing high-strength torsion-resistant steel provided in this embodiment includes the following steps:

[0043] S1: Put the remaining raw materials except styrene-butadiene-styrene block copolymer and rare earth elements into the melting furnace according to the mass percentage, smelt the raw materials into alloy solution, then perform desulfurization and deoxidation treatment, and then add refining agent to carry out Refining and slag removal;

[0044]...

Embodiment 3

[0052] A high-strength torsion-resistant steel provided in this embodiment has the following mass percentages of chemical components: C: 0.22-0.49%, Co: 1.25-1.38%, Ni: 0.88-1.34%, Cr: 4.57-5.45%, Mo: 0.96-1.35%, Al: 0.53-0.59%, Ti: 0.58-0.78%, Si: 0.16-0.19%, V: 0.09-0.14%, W: 0.13-0.16%, Nb: 0.06-0.09%, Ca : 0.004-0.009%, Mn: 0.12-0.26%, styrene-butadiene-styrene block copolymer: 0.06-0.09%, rare earth elements: 1.66-2.53%, and the balance is Fe and unavoidable impurities.

[0053] Wherein, the rare earth elements are composed of La, Ce, Pr, Tb, and Tm in a mass ratio of 1:1:1:1:1.

[0054] A method for preparing high-strength torsion-resistant steel provided in this embodiment includes the following steps:

[0055] S1: Put the remaining raw materials except styrene-butadiene-styrene block copolymer and rare earth elements into the melting furnace according to the mass percentage, smelt the raw materials into alloy solution, then perform desulfurization and deoxidation trea...

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Abstract

The invention discloses a high-strength torsion resistant steel, and relates to the technical field of metal smelting. The high-strength torsion resistant steel comprises, by mass, 0.22%-0.49% of C, 1.25%-1.38% of Co, 0.88%-1.34% of Ni, 4.57%-5.45% of Cr, 0.96%-1.35% of Mo, 0.53%-0.59% of Al, 0.58%-0.78% of Ti, 0.16%-0.19% of Si, 0.09%-0.14% of V, 0.13%-0.16% of W, 0.06%-0.09% of Nb, 0.004%-0.009%of Ca, 0.12%-0.26% of Mn, 0.06%-0.09% of styrene-butadiene-styrene block copolymer, 1.66%-2.53% of rare earth elements and the balance Fe and inevitable impurities. The invention further discloses apreparation method of the high-strength torsion resistant steel, and the strength and toughness of the steel can be improved effectively; and the phenomenon that the steel is liable to be twisted offby external force is avoided.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a high-strength torsion-resistant steel and a preparation method thereof. Background technique [0002] Steel is a general term for iron-carbon alloys with a carbon content between 0.02% and 2.11% by mass. The chemical composition of steel can vary greatly. Steel containing only carbon elements is called carbon steel (carbon steel) or ordinary steel; in actual production, steel often contains different alloying elements according to different uses, such as: manganese, Nickel, vanadium, etc. Human beings have a long history of application and research on steel, but until the invention of the Belleville steelmaking method in the 19th century, the production of steel was a high-cost and low-efficiency work. Today, steel has become one of the most used materials in the world due to its low price and reliable performance. It is an indispensable component in construction, manu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/52C22C38/44C22C38/06C22C38/50C22C38/02C22C38/46C22C38/48C22C38/04C22C33/04C21D6/00
CPCC22C38/52C21D6/004C21D6/005C21D6/007C21D6/008C22C33/04C22C38/002C22C38/005C22C38/02C22C38/04C22C38/06C22C38/44C22C38/46C22C38/48C22C38/50
Inventor 顾建强
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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