CN103820720A - Production method of wear-resistant surfacing iron alloy material - Google Patents

Abstract

The invention relates to a production method of a wear-resistant surfacing iron alloy material. The production method comprises the following steps: forming a uniform molten material, of key elements such as carbon and chromium, with the required concentration, for an iron alloy welding consumable containing chromium carbide; forming the solid iron alloy welding consumable containing the chromium carbide through the molten material, wherein the uniform molten material is formed by manganese, tungsten, molybdenum, vanadium, niobium, zirconium and lanthanum in a manner of iron alloy monomer; melting the molten material, keeping the temperature for 30-60 minutes, reducing the temperature by 150-220 DEG C at a constant speed, and then performing degasification.

Description

A kind of wear-resisting built-up welding ferroalloy materials production method

Technical field

The invention belongs to metal material field, specifically refer to a kind of built-up welding ferroalloy materials production method of surface abrasion resistance.

Background technology

The ferroalloy materials that comprises carbide has been widely used as the consumptive material of upper surface of substrate hardfacing overlay for many years.Can in this mixture, add other ferroalloy powdeies, for example molybdenum-iron, ferrovanadium, ferro-niobium, ferro-boron and ferrotianium, with thinking that molten bath and the hard-facing layer forming give different material behaviors.

But the chromium of higher price is to maximize the carbon content in surfacing layer cladding.Because in the relatively short arc-melting time, be generally in 2 to 5 seconds, uncombined carbon is difficult in molten metal bath dissolving to form suprabasil hard-facing overlay, thereby in iron alloy mixture, to add uncombined carbon powder be invalid in order to the carbon content increasing in final surfacing layer cladding.

Summary of the invention

The object of this invention is to provide a kind of method of producing improved hard-facing overlay with respect to prior art in cost-effective mode.

The present invention is achieved by the following technical solutions:

A wear-resisting built-up welding ferroalloy materials production method, comprising:

Wear-resisting ferroalloy materials, its composition is by weight percentage, 32.5% chromium, 5.8% carbon, 2.5% manganese, 1.1% tungsten, 0.3% titanium, 0.1% molybdenum, 0.35% vanadium, 0.12% boron, 0.05% niobium, 0.01% zirconium, 0.001% lanthanum and the iron of surplus;

Formation has the even melting material of the key element such as carbon and chromium of desired concn, for the iron alloy welding consumptive material that comprises chromium carbide;

Formed the iron alloy that the comprises chromium carbide welding consumptive material of solid by above-mentioned melting material;

Wherein manganese, tungsten, molybdenum, vanadium, niobium, zirconium and lanthanum are all to form uniform melting material in the mode of monomer iron alloy;

Degassed by carrying out after 150 to 220 degree of at the uniform velocity lowering the temperature after needing to be incubated 30 to 60 minutes after above-mentioned melting material fusing.

The invention has the beneficial effects as follows:

According to the present invention, provide the hard-facing of producing by aforesaid method overlay in suitable substrates.

Embodiment

A kind of wear-resisting ferroalloy materials, its composition is by weight percentage, 32.5% chromium, 5.8% carbon, 2.5% manganese, 1.1% tungsten, 0.3% titanium, 0.1% molybdenum, 0.35% vanadium, 0.12% boron, 0.05% niobium, 0.01% zirconium, 0.001% lanthanum and the iron of surplus.

This wear-resisting ferroalloy materials is for hard-facing, and its production method is:

Formation has the even melting material of the key element such as carbon and chromium of desired concn, for the iron alloy welding consumptive material that comprises chromium carbide; It consists of, be by weight percentage 32.5% chromium, 5.8% carbon, 2.5% manganese, 1.1% tungsten, 0.3% titanium, 0.1% molybdenum, 0.35% vanadium, 0.12% boron, 0.05% niobium, 0.01% zirconium, 0.001% lanthanum and the iron of surplus;

Formed the iron alloy that the comprises chromium carbide welding consumptive material of solid by above-mentioned melting material;

Wherein manganese, tungsten, molybdenum, vanadium, niobium, zirconium and lanthanum are all to form uniform melting material in the mode of monomer iron alloy;

Degassed by carrying out after 150 to 220 degree of at the uniform velocity lowering the temperature after needing to be incubated 30 to 60 minutes after above-mentioned melting material fusing.

Claims (1)

1. a wear-resisting built-up welding ferroalloy materials production method, is characterized in that: comprising:

Wear-resisting ferroalloy materials, its composition is by weight percentage, 32.5% chromium, 5.8% carbon, 2.5% manganese, 1.1% tungsten, 0.3% titanium, 0.1% molybdenum, 0.35% vanadium, 0.12% boron, 0.05% niobium, 0.01% zirconium, 0.001% lanthanum and the iron of surplus;

Formation has the even melting material of the key element such as carbon and chromium of desired concn, for the iron alloy welding consumptive material that comprises chromium carbide;

Formed the iron alloy that the comprises chromium carbide welding consumptive material of solid by above-mentioned melting material;

Wherein manganese, tungsten, molybdenum, vanadium, niobium, zirconium and lanthanum are all to form uniform melting material in the mode of monomer iron alloy;

Degassed by carrying out after 150 to 220 degree of at the uniform velocity lowering the temperature after needing to be incubated 30 to 60 minutes after above-mentioned melting material fusing.