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Corrosion-resistant malleable nodular cast iron material and preparation method thereof

A ductile and cast iron technology, applied in the field of metal materials, can solve problems such as the limitation of material corrosion resistance improvement and insufficient toughness of cast iron, and achieve the effect of improving corrosion resistance, low production cost and low material cost

Inactive Publication Date: 2011-05-11
金湖中博物联网科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Despite measures, cast iron lacks toughness
Therefore, the improvement of the corrosion resistance of the material is also limited

Method used

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  • Corrosion-resistant malleable nodular cast iron material and preparation method thereof
  • Corrosion-resistant malleable nodular cast iron material and preparation method thereof
  • Corrosion-resistant malleable nodular cast iron material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of nickel-plated low-carbon steel wire and chrome-plated iron wire:

[0030] Take the low-carbon steel wire with a diameter of 1mm and composition weight percentage: C is 0.05%, Si is 0.09%, Mn is 0.3%, P<0.02%, S<0.025%, and the rest is Fe;

[0031] Take another iron wire with a diameter of 1mm and composition weight percentage: C is 0.02%, Si is 0.2%, Mn is 0.25%, P<0.02%, S<0.025%, and the rest is Fe; both low-carbon steel wire and iron wire The total volume percentage of the material is 5%, and the overall lengths of the low-carbon steel wire and the iron wire are equivalent.

[0032] Nickel-plating on the surface of low-carbon steel wire and chrome-plating on the surface of iron wire according to conventional methods; respectively forming nickel-plated low-carbon steel wire and chrome-plated iron wire; the thickness of the nickel-plated layer and the chrome-plated layer is 100 microns;

[0033] According to the conventional method of cleaning ball prod...

Embodiment 2

[0037] Ductile malleable cast iron material matrix by weight percentage: C is 3.0%, Si is 1.4%, Mn is 0.9%, Gd is 0.8%, P<0.08%, S<0.25%, and the rest is Fe for batching.

[0038] Preparation of nickel-plated low-carbon steel wire and chrome-plated iron wire:

[0039] The weight percentage of low carbon steel wire components is: C is 0.2%, Si is 0.12%, Mn is 0.35%, P<0.02%, S<0.025%, the rest is Fe, and the diameter is 2mm.

[0040] The weight percentage of iron wire components is: C is 0.05%, Si is 0.3%, Mn is 0.35%, P<0.02%, S<0.025%, the rest is Fe, and the diameter is 2mm. Control the low-carbon steel wire and the iron wire to account for 40% of the material by volume, and the overall length of the low-carbon steel wire and the iron wire to be used is equivalent.

[0041] The surface of the low-carbon steel wire is nickel-plated according to the conventional method; the surface of the iron wire is chrome-plated according to the conventional method to form nickel-plated lo...

Embodiment 3

[0044] Ductile malleable cast iron material matrix by weight percentage: C is 2.7%, Si is 1.3%, Mn is 0.7%, Gd is 0.7%, P<0.08%, S<0.25%, and the rest is Fe for batching.

[0045] Preparation of nickel-plated low-carbon steel wire and chrome-plated iron wire:

[0046] The weight percentage of low-carbon steel wire components is: C is 0.09%, Si is 0.1%, Mn is 0.32%, P<0.02%, S<0.025%, the rest is Fe, and the diameter is 1.2mm.

[0047] The weight percentage of iron wire components is: C is 0.03%, Si is 0.25%, Mn is 0.3%, P<0.02%, S<0.025%, and the rest is Fe. The diameter is 1.2mm. Controlling low-carbon steel wire and iron wire both account for 25% of the volume of the material, and the overall length of the two metal wires used is equivalent.

[0048] The surface of the low-carbon steel wire is nickel-plated according to the conventional method; the surface of the iron wire is chrome-plated according to the conventional method, and the thickness of the nickel-plated layer a...

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Abstract

The invention provides a corrosion-resistant malleable nodular cast iron material and a preparation method thereof. The corrosion-resistant malleable nodular cast iron material has good performance; and the preparation method is simple in process, low in production cost and suitable for industrial production. Malleable nodular cast iron is utilized as a substrate for the corrosion-resistant malleable nodular cast iron material, wherein metal wire clusters formed by mild steel wires and iron wires are distributed on the substrate; the diameter of the mild steel wires and the diameter of the iron wires are 1-2mm; the mild steel wires and the iron wires account for 5-40% of the material by volume; and the length of the mild steel wires in the material is equivalent to that of the iron wires in the material.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to a corrosion-resistant nodular malleable cast iron material and a preparation method thereof. Background technique [0002] In the field of metal materials, corrosion-resistant cast iron has been widely valued as a low-cost corrosion-resistant material. [0003] Application No. CN201010177246.8 relates to a corrosion-resistant medium-silicon-molybdenum-nickel-chromium ductile iron alloy. Specifically, it relates to a medium-silicon-molybdenum-nickel-chromium ductile iron alloy, which contains: C: 2.0-3.5%; Si: 4.0-6.5%; Mo: 0.6-1.5%; P: 0.01-0.05% %; S: 0.01-0.03%; Chromium: 0.05-0.1%; Ni: 0.1-0.3%; Co: 0.05-0.1%; [0004] Despite the measures taken, the ductility of cast iron was insufficient. Therefore, the improvement of the corrosion resistance of the material is also limited. Contents of the invention [0005] The object of the present invention is to provide a corrosion-r...

Claims

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Application Information

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IPC IPC(8): C22C47/02C22C47/08C22C49/08C22C49/14C22C37/10C22C111/00C22C121/02
Inventor 赵浩峰王玲季君
Owner 金湖中博物联网科技有限公司
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