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Heat-resistant malleable cast iron material and preparation method thereof

A cast iron and heat-resistant technology, which is applied in the field of metal materials, can solve the problems of insufficient toughness of malleable iron and limitations on the improvement of material heat resistance, and achieve the effects of improving heat resistance, improving heat resistance, and improving heat resistance

Inactive Publication Date: 2012-08-22
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

Despite measures on malleable iron, malleable iron is not tough enough
Therefore, the improvement of the heat resistance of the material is also limited

Method used

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  • Heat-resistant malleable cast iron material and preparation method thereof
  • Heat-resistant malleable cast iron material and preparation method thereof
  • Heat-resistant malleable cast iron material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of nickel-plated medium carbon steel wire and cobalt-plated iron wire:

[0030] The weight percentage of medium carbon steel wire components is: C is 0.3%, Si is 0.2%, Mn is 0.5%, P<0.02%, S<0.02%, the rest is Fe, and the diameter is 1mm.

[0031] The weight percentage of iron wire components is: C is 0.05%, Si is 0.2%, Mn is 0.25%, P<0.02%, S<0.025%, the rest is Fe, and the diameter is 1mm. The overall length of the medium-carbon steel wire and the iron wire is equivalent, and the volume percentage of the medium-carbon steel wire and iron wire is 5% of the material.

[0032] The surface of medium carbon steel wire is nickel-plated according to conventional methods; the surface of iron wire is plated with cobalt according to conventional methods to form nickel-plated medium-carbon steel wire and cobalt-plated iron wire respectively. The thickness of the nickel-plated and cobalt-plated layers are both 50 microns;

[0033] The preparation process is as follo...

Embodiment 2

[0038] The matrix composition of malleable cast iron material is by weight percentage: C is 2.9%, Si is 3.3%, Mn is 0.6%, Zr is 0.7%, Y is 0.7%, P<0.08%, S <0.25%, and the rest is Fe for batching .

[0039] The weight percentage of medium carbon steel wire components is: C is 0.53%, Si is 0.25%, Mn is 0.65%, P<0.02%, S<0.02%, the rest is Fe, and the diameter is 2mm.

[0040]The weight percentage of iron wire components is: C is 0.09%, Si is 0.3%, Mn is 0.35%, P<0.02%, S<0.025%, the rest is Fe, and the diameter is 2mm. The overall length of the medium-carbon steel wire and the iron wire is equivalent, and the volume percentage of the medium-carbon steel wire and iron wire is controlled to be 40% of the material.

[0041] The surface of the medium carbon steel wire and iron wire is nickel-plated and cobalt-plated respectively, and the thickness of the nickel-plated and cobalt-plated layers is 500 microns. The conventional method that cleaning ball is produced makes the double-...

Embodiment 3

[0044] The matrix composition of malleable cast iron material is by weight percentage: C is 2.7%, Si is 2.9%, Mn is 0.5%, Zr is 0.6%, Y is 0.6%, P<0.08%, S <0.25%, and the rest is Fe for batching .

[0045] The weight percentage of the chemical composition of medium carbon steel wire is: C is 0.5%, Si is 0.23%, Mn is 0.55%, P<0.02%, S <0.02%, and the rest is Fe. The diameter is 1.2mm.

[0046] The weight percentage of the chemical composition of the iron wire is: C is 0.07%, Si is 0.25%, Mn is 0.3%, P<0.02%, S<0.025%, and the rest is Fe. The diameter is 1.2mm. The overall length of medium-carbon steel wire and iron wire is equivalent, and the volume percentage of medium-carbon steel wire and iron wire is controlled to be 25% of the material.

[0047] The surface of the medium carbon steel wire and iron wire is nickel-plated and cobalt-plated respectively, and the thickness of the nickel-plated and cobalt-plated layers is 200 microns. The conventional method that cleaning b...

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Abstract

The invention provides a heat-resistant malleable cast iron material and a preparation method thereof. The heat-resistant malleable cast iron material has good performance; and the preparation method is simple in process, low in production cost and suitable for industrial production. Malleable cast iron is utilized as a substrate for the heat-resistant malleable cast iron material, wherein metal wire clusters formed by medium carbon steel wires and iron wires are distributed on the substrate; the diameter of the medium carbon steel wires and diameter of the iron wires are 1-2mm; the medium carbon steel wires and the iron wires account for 5-40% of the material by volume; and the diameter of the metal wire clusters is 10-15cm.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to a heat-resistant malleable cast iron material and a preparation method thereof. Background technique [0002] In the field of metal materials, heat-resistant malleable cast iron has been widely valued as a low-cost heat-resistant material. [0003] CN87105171 A new process for producing malleable cast iron with a bismuth-substituting alloy, which uses a new type of alloy as an inoculant, which can promote the formation of white spots in malleable cast iron bad parts, instead of traditional metal pure bismuth. The alloy is extracted from the fume or electrolytic anode slime produced during metallurgical refining of copper, lead, and tin. During the metallurgical refining process, it is enriched into an alloy containing 15-30% bismuth, 60-70% lead and a small amount of other elements. Ferrosilicon, aluminum and this alloy are used for compound inoculation in front of the furnace, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/02C22C47/08C22C49/08C22C49/14C22C37/10C22C111/00C22C121/02
Inventor 王玲赵浩峰刘美玲
Owner 金湖中博物联网科技有限公司
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