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Environment-friendly low-temperature-resistant composite steel

A technology of low temperature resistance and composite steel, applied in the field of alloys, can solve problems such as easy cracking, friction and other poor performance, general strength, etc., and achieve the effect of good wear resistance, good toughness and high low temperature strength

Inactive Publication Date: 2017-07-28
SUZHOU DOUBLE GOLD IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current steel has average strength at low temperature, is prone to cracking, and has poor friction and other properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An environmentally friendly low temperature resistant composite steel, the environmentally friendly low temperature resistant composite steel includes a first steel layer on the surface and a second steel layer on the inner layer, the first steel layer is composed of iron, cobalt, phosphorus, titanium and tungsten, the The second steel layer is composed of iron, cobalt, vanadium, chromium and nickel, and the parts by weight of the components in the first steel layer are specifically: the iron accounts for 77 parts, the cobalt accounts for 5 parts, and the cobalt accounts for 5 parts. Phosphorus accounts for 3 parts, the titanium accounts for 7 parts, and the tungsten accounts for 2 parts. The parts by weight of the components in the second steel layer are specifically: the iron accounts for 84 parts, the cobalt accounts for 8 parts, The vanadium accounts for 4 parts, the chromium accounts for 3 parts, and the nickel accounts for 1 part.

Embodiment 2

[0017] An environmentally friendly low temperature resistant composite steel, the environmentally friendly low temperature resistant composite steel includes a first steel layer on the surface and a second steel layer on the inner layer, the first steel layer is composed of iron, cobalt, phosphorus, titanium and tungsten, the The second steel layer is composed of iron, cobalt, vanadium, chromium and nickel, and the parts by weight of each component in the first steel layer are specifically: the iron accounts for 82 parts, the cobalt accounts for 9 parts, and the cobalt accounts for 9 parts. Phosphorus accounts for 7 parts, the titanium accounts for 10 parts, and the tungsten accounts for 5 parts. The parts by weight of the components in the second steel layer are specifically: the iron accounts for 88 parts, the cobalt accounts for 11 parts, The vanadium accounts for 7 parts, the chromium accounts for 6 parts, and the nickel accounts for 3 parts.

Embodiment 3

[0019] An environmentally friendly low temperature resistant composite steel, the environmentally friendly low temperature resistant composite steel includes a first steel layer on the surface and a second steel layer on the inner layer, the first steel layer is composed of iron, cobalt, phosphorus, titanium and tungsten, the The second steel layer is composed of iron, cobalt, vanadium, chromium and nickel, and the parts by weight of the components in the first steel layer are specifically: the iron accounts for 88 parts, the cobalt accounts for 12 parts, and the cobalt accounts for 12 parts. Phosphorus accounts for 9 parts, the titanium accounts for 14 parts, and the tungsten accounts for 7 parts. The parts by weight of the components in the second steel layer are specifically: the iron accounts for 91 parts, and the cobalt accounts for 16 parts. The vanadium accounts for 10 parts, the chromium accounts for 8 parts, and the nickel accounts for 5 parts.

[0020] The invention ...

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PUM

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Abstract

The invention discloses environment-friendly low-temperature-resistant composite steel which comprise a first steel layer on the surface layer and a second steel layer on the inner layer. The first steel layer is prepared from, by weight, 77-88 parts of iron, 5-12 parts of cobalt, 3-9 parts of phosphorus, 7-14 parts of titanium and 2-7 parts of tungsten. The second steel layer is prepared from, by weight, 84-91 parts of iron, 8-16 parts of cobalt, 4-10 parts of vanadium, 3-8 parts of chromium and 1-5 parts of nickel. The environment-friendly low-temperature-resistant composite steel is of a composite structure and has the advantages of being high in low-temperature strength, good in toughness, good in wear resistance, nontoxic and free of pollution.

Description

technical field [0001] The invention relates to an alloy, in particular to an environment-friendly low temperature resistant composite steel. Background technique [0002] Steel is a material with iron as the main element, carbon content generally below 2%, and other elements. Steel can be classified by use, including structural steel, toolbox and specialty steel. Structural steel can also be divided into construction steel and mechanical steel. The tool box includes carbon tool steel, alloy tool steel and high-speed tool steel, etc. Special steel includes stainless acid-resistant steel, heat-resistant steel, electric heating alloy and magnetic material, etc. The current steel has average strength at low temperature, is prone to cracking and other phenomena, and has poor friction and other properties. Contents of the invention [0003] The object of the present invention is to provide an environment-friendly and low-temperature-resistant composite steel adopting a comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/10C22C38/14C22C38/12C22C38/52C22C38/46B32B15/01
CPCC22C38/10B32B15/011C22C38/002C22C38/12C22C38/14C22C38/46C22C38/52
Inventor 崔斌
Owner SUZHOU DOUBLE GOLD IND
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