Corrosion-resistant alloy cast iron material for diesel engine cylinder and preparing method thereof

A corrosion-resistant alloy, diesel engine technology, applied in the field of cast iron materials, can solve the problems of inability to meet market demand, poor corrosion resistance, etc., and achieve the effect of improving heat resistance, excellent corrosion resistance, and good toughness

Inactive Publication Date: 2016-04-13
FANCHANG COUNTY HENGXIN AUTO PARTS
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the gray cast iron diesel engine cylinder material produced in my country

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0014] Example

[0015] A corrosion-resistant alloy cast iron material for diesel engine cylinders, whose mass percentage components are: C2.8-3.2, Si2.2-2.6, Ni4.4-4.8, Cr1.9-2.3, Cu3.5-4.0, Mn0 .2-0.4, In0.3-0.6, Ge0.2-0.4, La0.05-0.1, Pm0.04-0.08, Gd0.03-0.06, P0.04-0.07, S0.02-0.04, the margin is Fe.

[0016] A preparation method of corrosion-resistant alloy cast iron material for diesel engine cylinder block includes the following steps:

[0017] (1) Use an intermediate frequency induction electric furnace for smelting. First, add scrap steel, pig iron, reflow charge and ferrosilicon at the bottom of the furnace. After the charge is melted, add ferronickel, ferrochrome and ferromanganese. When the temperature of the molten iron reaches 1510℃, add graphite electrode powder. Add carbon, and then add other iron alloys to adjust the chemical composition of the molten iron. The alloying element Cu is added in the form of electrolytic copper 4 minutes before the furnace. When the tempe

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PUM

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Abstract

The invention discloses a corrosion-resistant alloy cast iron material for a diesel engine cylinder and a preparing method thereof. The gray cast iron material for the diesel engine cylinder comprises the following components in a percent by mass: 2.8-3.2% of C, 2.2-2.6% of Si, 4.4-4.8% of Ni, 1.9-2.3% of Cr, 3.5-4.0% of Cu, 0.2-0.4% of Mn, 0.3-0.6% of In, 0.2-0.4% of Ge, 0.05-0.1% of La, 0.04-0.08% of Pm, 0.03-0.06% of Gd, 0.04-0.07% of P, 0.02-0.04% of S and the balance of Fe. The gray cast iron material prepared by the preparing method has the characteristics of being outstanding in corrosion resistance, high in strength, great in tenacity, great in thermal resistance and the like.

Description

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Claims

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Application Information

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Owner FANCHANG COUNTY HENGXIN AUTO PARTS
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