CN103014479A

CN103014479A - Wearable cast iron alloy material

Info

Publication number: CN103014479A
Application number: CN2012105056574A
Authority: CN
Inventors: 姚芙蓉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-04-03

Abstract

The invention relates to a wearable cast iron alloy material, comprising the following components by weight percent: 17.5-18.5% of chromium, 1.5-1.6% of carbon, 1.3-1.35% of manganese, 0.8-1.2% of silicon, 6.5-7.5% of nickel, 0.5-0.6% of molybdenum, 0.03-0.05% of titanium, 0.01-0.03% of boron, 0.3-0.5% of tungsten, 0.001-0.003% of niobium and the balance of iron. The high-temperature wear resistance of the cast iron alloy is improved while the strength of the cast iron alloy is improved by proportioning of each element disclosed by the invention; and the cast iron alloy prepared by the technical scheme can be suitable for high temperature of over 500 DEG C.

Description

A kind of wear-resistant cast iron alloy material

Technical field

The invention belongs to field of alloy material, refer to especially a kind of wear-resistant cast iron alloy material.

Background technology

Cast iron alloy is simple with its production technique, can one-time formed advantage for complex components, be widely used.But cast iron alloy at high temperature, and the martensitic structure in its weave construction greater than other structure therefore the variation of weave construction can occur, and causes the intensity of cast iron to reduce, and its use temperature generally can not be above 350 ℃.

Although there is technology to propose, cast iron alloy material is improved and has proposed some technical schemes, these technical schemes are in order to solve the high temperature resistant problem of cast iron, the elements such as some chromium, manganese have been added to improve intensity, but the wear resisting property under hot environment is not high, and cause cast iron alloy to become fragile in the amount that adds manganese, and the phenomenons such as surface peeling appear easily, can't satisfy wear-resisting requirement at high temperature.

Summary of the invention

The purpose of this invention is to provide a kind of wear-resistant cast iron alloy material, by the technical program, can be at the stable and wear resisting property of retention under the high-temperature condition when having improved cast iron alloy hardness.

The present invention is achieved by the following technical solutions:

A kind of wear-resistant cast iron alloy material, its composition is by weight percentage, the titanium of the nickel of the manganese of the chromium of 17.5-18.5%, the carbon of 1.5-1.6%, 1.3-1.35%, the silicon of 0.8-1.2%, 6.5-7.5%, the molybdenum of 0.5-0.6%, 0.03-0.05%, the boron of 0.01-0.03%, the tungsten of 0.3-0.5%, the niobium of 0.001-0.003%, surplus is iron.

The beneficial effect that the present invention compares with prior art is:

By the proportioning of each element in the present invention, in the intensity that has improved cast iron alloy, improved the wear resistance at elevated temperature of cast iron alloy, make the cast iron alloy that makes according to the technical program can be applicable to high temperature more than 500 ℃.

Embodiment

Describe by the following examples technical scheme of the present invention in detail, should be understood that, following embodiment only can be used for technical scheme of the present invention being described and can not being interpreted as to be limitation of the present invention.

In technical scheme of the present invention, selected smelting technology is identical with existing smelting technology, therefore no longer is elaborated; Difference is the proportioning material of each embodiment to some extent.

Embodiment 1

A kind of wear-resistant cast iron alloy material, its composition is by weight percentage, 17.5% chromium, 1.5% carbon, 1.3% manganese, 0.8% silicon, 6.5% nickel, 0.5% molybdenum, 0.03% titanium, 0.01% boron, 0.3% tungsten, 0.001% niobium, surplus is iron.

Embodiment 2

A kind of wear-resistant cast iron alloy material, its composition is by weight percentage, 18.5% chromium, 1.6% carbon, 1.35% manganese, 1.2% silicon, 7.5% nickel, 0.6% molybdenum, 0.05% titanium, 0.03% boron, 0.5% tungsten, 0.003% niobium, surplus is iron.

Embodiment 3

A kind of wear-resistant cast iron alloy material, its composition is by weight percentage, 18% chromium, 1.55% carbon, 1.32% manganese, 1.0% silicon, 7.0% nickel, 0.55% molybdenum, 0.035% titanium, 0.025% boron, 0.35% tungsten, 0.0015% niobium, surplus is iron.

Claims

1. wear-resistant cast iron alloy material, it is characterized in that: its composition is by weight percentage, the titanium of the nickel of the manganese of the chromium of 17.5-18.5%, the carbon of 1.5-1.6%, 1.3-1.35%, the silicon of 0.8-1.2%, 6.5-7.5%, the molybdenum of 0.5-0.6%, 0.03-0.05%, the boron of 0.01-0.03%, the tungsten of 0.3-0.5%, the niobium of 0.001-0.003%, surplus is iron.