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Corrosion-resistant and wear-resistant alloy cast iron and production method and application thereof

A wear-resistant alloy and corrosion-resistant technology, applied in the field of machinery, can solve problems such as travel safety hazards, affecting the use of cars, heat resistance, etc., and achieve the effects of ensuring travel safety, reducing weight and stabilizing performance

Inactive Publication Date: 2017-09-29
WUHU HEXU MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of society, automobiles are increasingly popular as a means of transportation, and the popularity of automobiles has been greatly improved. However, the existing auto parts are usually made of steel, iron and other materials, which are not only heavy and easy to corrode, but also Heat resistance seriously affects the use of cars and brings great hidden dangers to people's travel safety

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0027] The present invention also provides a preparation method of the above-mentioned corrosion-resistant and wear-resistant alloy cast iron, which comprises the following steps:

[0028] Step 1, each component is weighed by above-mentioned corrosion-resistant, wear-resistant alloy cast iron;

[0029] Step 2, putting C, Si, B, Co, Ni, Pb, V, Cr, Cu and half the weight of Fe in an electric furnace for smelting, keeping the temperature at 1400-1450°C after smelting to obtain component I;

[0030] Step 3, putting Bi, Mn, In, Pm, Gd, P, S, Mo and remaining Fe in an electric furnace for smelting, keeping the temperature at 1700-1800°C after smelting to obtain component II;

[0031] Step 4: Add component I to component II, then add graphite powder and stir evenly. When the temperature reaches 1250°C, deoxidize and take out of the furnace;

[0032] Step 5, casting the liquid after step 4 out of the furnace in the pre-prepared molding sand box, after natural cooling, it becomes the ...

Embodiment 1

[0035] A corrosion-resistant and wear-resistant alloy cast iron, which includes the following components calculated in parts by weight: 3 parts of C, 2.2 parts of Si, 0.4 parts of B, 0.1 parts of Co, 4.4 parts of Ni, 0.08 parts of Pb, 0.05 parts of V, Bi 0.04 parts, Cr 1.9 parts, Cu 3.5 parts, Mn 0.2 parts, In 0.3 parts, Pm 0.04 parts, Gd 0.03 parts, P 0.04 parts, S 0.02 parts, Mo 0.04 parts, graphite powder 0.4 parts, Fe 80 parts.

[0036] Wherein, the particle size of the graphite powder is 1 mm.

[0037] Further, the present invention also provides a method for preparing the above-mentioned corrosion-resistant and wear-resistant alloy cast iron, which includes the following steps:

[0038] Step 1, each component is weighed by above-mentioned corrosion-resistant, wear-resistant alloy cast iron;

[0039] Step 2, putting C, Si, B, Co, Ni, Pb, V, Cr, Cu and half the weight of Fe in an electric furnace for smelting, keeping the temperature at 1400°C after smelting to obtain com...

Embodiment 2

[0047] A corrosion-resistant and wear-resistant alloy cast iron, which includes the following components calculated in parts by weight: 3.2 parts of C, 2.6 parts of Si, 0.7 parts of B, 0.3 parts of Co, 4.8 parts of Ni, 0.14 parts of Pb, 0.1 parts of V, 0.08 parts of Bi, 2.3 parts of Cr, 4.0 parts of Cu, 0.4 parts of Mn, 0.6 parts of In, 0.08 parts of Pm, 0.06 parts of Gd, 0.07 parts of P, 0.04 parts of S, 0.15 parts of Mo, 0.6 parts of graphite powder, and 84 parts of Fe.

[0048] In some embodiments, the particle size of the graphite powder is 3mm.

[0049] The present invention also provides a preparation method of the above-mentioned corrosion-resistant and wear-resistant alloy cast iron, which comprises the following steps:

[0050] Step 1, each component is weighed by above-mentioned corrosion-resistant, wear-resistant alloy cast iron;

[0051] Step 2, putting C, Si, B, Co, Ni, Pb, V, Cr, Cu and half the weight of Fe in an electric furnace for smelting, keeping the tempera...

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Abstract

The invention discloses a corrosion-resistant and wear-resistant alloy cast iron and its preparation method and application. The corrosion-resistant and wear-resistant alloy cast iron comprises the following components calculated in parts by weight: C 3-3.2 parts, Si 2.2-2.6 Part, B 0.4-0.7 part, Co 0.1-0.3 part, Ni 4.4-4.8 part, Pb 0.08-0.14 part, V 0.05-0.1 part, Bi 0.04-0.08 part, Cr 1.9-2.3 part, Cu 3.5-4.0 part, Mn 0.2-0.4 parts, In 0.3-0.6 parts, Pm 0.04-0.08 parts, Gd 0.03-0.06 parts, P 0.04-0.07 parts, S 0.02-0.04 parts, Mo 0.04-0.15 parts, graphite powder 0.4-0.6 parts, Fe 80‑84 parts. The invention also provides a preparation method and application of the corrosion-resistant and wear-resistant alloy cast iron. In the present invention, by adding Si, B, Co, Ni, Pb, V, Bi, In, La, graphite powder, Pm and Mo in the components, the alloy cast iron of the present invention has characteristics such as corrosion resistance and wear resistance, and at the same time Compared with materials such as iron and steel, the invention greatly reduces the weight of the automobile.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a corrosion-resistant and wear-resistant alloy cast iron as well as its preparation method and application. Background technique [0002] Alloy cast iron refers to cast iron that has special properties by adding alloying elements to ordinary cast iron. The alloying elements usually added are silicon, manganese, phosphorus, nickel, chromium, etc. Alloy cast iron is divided into low alloy cast iron (alloy element content < 3%) and medium alloy cast iron (alloy element content > 10%) according to the amount of alloy elements added. Alloying elements can change the matrix structure of cast iron, so that the cast iron can obtain special physical and chemical properties such as heat resistance, wear resistance, corrosion resistance, non-magnetic and low temperature resistance. This cast iron is also called "special performance cast iron". Therefore, it is widely used in mac...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C37/06C22C33/08
CPCC22C37/10C22C33/08C22C37/06
Inventor 姜丽俞保平牛家胜郑诗军
Owner WUHU HEXU MACHINERY