Wear-resistant and heat-resistant mottled cast iron material and preparation method thereof

A mottled cast iron, heat-resistant technology, applied in the field of metal materials, can solve the problems of material toughness and tensile strength limitations, and achieve the effects of low production cost, simple preparation process, and convenient industrial production

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

The cast iron uses a lot of rare and precious elements such as Mo, Co, V, etc., but uses a lot of silicon, and the toughness and tensile strength of the material are greatly limited.

Method used

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  • Wear-resistant and heat-resistant mottled cast iron material and preparation method thereof
  • Wear-resistant and heat-resistant mottled cast iron material and preparation method thereof
  • Wear-resistant and heat-resistant mottled cast iron material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of chrome-plated iron wire and cobalt-plated iron wire:

[0028] Take an iron wire with a diameter of 1mm, a composition of 0.08% C, 0.3% Si, 0.3% Mn, P<0.02%, S<0.025%, and the rest is Fe. The volume percentage of the control iron wire in the material is 5%.

[0029] Chromium-plated on the surface of half of the iron wire according to the conventional method, and cobalt-plated on the surface of the other half of the iron wire to form chrome-plated iron wire and cobalt-plated iron wire of equivalent length respectively; the thickness of the coating is 100 microns;

[0030] According to the conventional method of cleaning ball production, each of the above-mentioned chrome-plated iron wire and cobalt-plated iron wire is taken to form a spherical mixed double-wire wire group (two wires are formed at the same time to form a double-wire wire group, and the molding can be used for washing dishes. Cleaning balls or called steel balls), the diameter of the metal w...

Embodiment 2

[0034] The matrix composition of hemp cast iron material is by weight percentage: C is 3%, Si is 2.4%, Mn is 0.4%, Gd is 1%, P<0.08%, S<0.25%, and the rest is Fe for batching.

[0035] The composition of iron wire is 0.12% C, 0.5% Si, 0.50% Mn, P<0.02%, S <0.025%, and the rest is Fe. The wire diameter is 2mm. The volume percentage of the control iron wire accounting for the material is 40%.

[0036] According to the conventional method, the surface of half of the above-mentioned iron wires is respectively chrome-plated, and the surface of the other half of the iron wires is plated with cobalt to form chromium-plated iron wires and cobalt-plated iron wires with equivalent lengths; the thickness of the coatings is 500 microns. The conventional method that cleaning ball is produced makes the two-wire wire group that two kinds of metal wires of band plating mix, and the wire group diameter is 12cm.

[0037] The preparation process is the same as in Example 1.

Embodiment 3

[0039] The matrix composition of hemp cast iron material is by weight percentage: C is 2.8%, Si is 2.2%, Mn is 0.35%, Gd is 0.8%, P<0.08%, S<0.25%, and the rest is Fe for batching.

[0040] The composition of iron wire is 0.09% C, 0.4% Si, 0.4% Mn, P<0.02%, S <0.025%, and the rest is Fe. The wire diameter is 1.2mm. Iron wire accounts for 3% of the volume of the material.

[0041] According to the conventional method, the surface of half of the above-mentioned iron wires is respectively chrome-plated, and the surface of the other half of the iron wires is plated with cobalt to form chromium-plated iron wires and cobalt-plated iron wires with equivalent lengths; the thickness of the coatings is 300 microns. The conventional method that cleaning ball is produced makes the two-wire wire group that two kinds of metal wires of band plating mix, and the wire group diameter is 12cm.

[0042] The preparation process is the same as in Example 1.

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Abstract

The invention provides a wear-resistant and heat-resistant mottled cast iron material and a preparation method thereof. The wear-resistant and heat-resistant mottled cast iron material has good performance; and the preparation method is simple in process, low in production cost and suitable for industrial production. Mottled cast iron is utilized as a substrate for the wear-resistant and heat-resistant mottled cast iron material, wherein metal wire clusters formed by iron wires are distributed in the substrate; the diameter of the iron wires is 0.2-2mm; the diameter of the metal wire clusters is 10-15cm; and the iron wires account for 5-40% of the material by volume.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to a wear-resistant and heat-resistant mottled cast iron material and a preparation method thereof. Background technique [0002] In the field of metal materials, wear-resistant and heat-resistant cast iron has been widely valued as a low-cost wear-resistant and heat-resistant material. [0003] Zhang Shangang and others studied the design and preparation of low-alloy anti-wear hemp cast iron in the second phase of casting technology in 2003. The main chemical composition of the test material is called: 2.5% ~ 3.5% C; 1.0% ~ 2.0% Si; 0.5% ~ 1.5% Mn; 0.5% -2.0 % (Co+Cu); less than 1.0% Cr, Mo. But mottled iron is mainly composed of cementite, which is hard but brittle. The toughness of the material is low. It is not conducive to the improvement of the wear resistance and heat resistance of the material. [0004] CN200610163305.X application discloses a high-silicon ferritic heat-re...

Claims

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Application Information

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