CN106835124B - A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser - Google Patents

A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser Download PDF

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CN106835124B
CN106835124B CN201710128280.8A CN201710128280A CN106835124B CN 106835124 B CN106835124 B CN 106835124B CN 201710128280 A CN201710128280 A CN 201710128280A CN 106835124 B CN106835124 B CN 106835124B
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laser
parts
carbide
toughened
intermetallic compound
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CN106835124A (en
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魏振华
刘玉柱
刘兆环
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Tangshan City Atlas Metallurgical Equipment Manufacturing Co Ltd
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Tangshan City Atlas Metallurgical Equipment Manufacturing Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/10—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides

Abstract

The present invention relates to a kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, belong to metallurgical roller technical field.Technical scheme is：Using intermetallic compound Fe3Al and ZrO2Composite, participate in laser nano intensive treatment；Enhancing phase, nano level 60 70 parts of Ti bases carbide, 46 parts of Si bases carbide, 12 parts of W bases carbide, 12 parts of Cr base carbide are used as using nano level base carbide；The beneficial effects of the invention are as follows：By the hot roll of laser composite intensive treatment, working surface formation obdurability strengthening layer, maintain the fatigue strength such as high temperature hardness, high abrasion, anti-oxidant, wear resistant corrosion resistant basis, add strengthening layer toughness and tenacity, improve because of the cracking tendency that fragility is brought, the steel transportation amount of hot roll can be significantly improved, extends the roll change cycle.

Description

A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser
Technical field
The present invention relates to a kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, belong to metallurgical roller skill Art field.
Background technology
Roll is the primary deformable instrument on the various bar and shape mills of steel industry.Largely using various on steel rolling production-line The roll of type, wherein hot roll are usage amount and the maximum roll of consumption.Hot roll high temperature, top load, alternating hot and cold, Burn into abrasion etc. are on active service under the conditions of bad working environments, are subjected to the alternate stress effects such as powerful impulsive force and pressure, occur abrasion, Corrosion, crackle, peeling, in addition fracture etc. fatigue damage, cause its fail or scrap.Various rolls, particularly hot roll are steel One in iron enterprise's production cost very big consumption, is always an important problem in iron and steel enterprise's technology and production.For The use time of hot roll can suitably be increased, improve the performance and quality of rolled-section, reduction consumption and production cost, it is existing Technology uses traditional welding repair method, can make the size of part steel and the former new product of ball roll proper restoration made of iron, Although not reaching former technical performance index and service life, can also temporarily it be used as substitute.In recent years, it is molten using laser Cover and intensive treatment is carried out to hot roll with ceramic surface reinforcement technique, the technical performance and service life of hot roll is recovered With raising.But, there are the following problems for the application of unlike material hot roll laser melting and coating technique：Heat after ceramic material reinforcing is steady Microstructure toughness is relatively low in qualitative deficiency, strengthening layer, and strengthening layer easily produces cracking etc. in use.
The content of the invention
It is an object of the present invention to provide a kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, by laser The hot roll of composite intensive treatment, working surface formation obdurability strengthening layer, maintains high temperature hardness, high abrasion, antioxygen The fatigue strength such as change, wear resistant corrosion resistant basis, adds strengthening layer toughness and tenacity, improves because of the cracking tendency that fragility is brought, The steel transportation amount of hot roll can be significantly improved, extends the roll change cycle, problem present in background technology is solved.
The technical scheme is that：
A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, includes following processing step：
Using intermetallic compound Fe3Al and ZrO2Composite, participate in laser nano intensive treatment；So, effectively Utilization this compound-material high intensity, high-temerature creep, heat endurance, anti-oxidant and corrosion-resistant etc. the performance that have；Meanwhile, In compound phase, the superposition of its distinctive a variety of strengthening and toughening mechanism and the cooperative effect of additional are made full use of；For Increase the toughness and tenacity in the reinforcing of hot roll laser nano, improve the toughness reinforcing index of hardening constituent；
The composite, is intermetallic compound Fe3Al and ZrO2, micron particles are fabricated to by equal proportion share Shape material.
Using nano level base carbide as enhancing phase, the component mass fraction of enhancing phase is：Nano level 60-70 Part Ti bases carbide, 4-6 parts of Si bases carbide, 1-2 parts of W bases carbide, 1-2 parts of Cr base carbide；Enhancing mutually improves ceramics Material embrittlement, forms dominant complementation effect；Possess high temperature hardness, it is elevated temperature strength, high high-temp stability, wear-resistant, resistance to The features such as collaboration of burn into toughness reinforcing and not aging, reach that intermetallic compound composite material is matched somebody with somebody with tough cooperate with of ceramic material Close, obtain solution strengthening and dispersion-strengtherning and precipitation strength and toughened and strengthened effect；
Comprise the following steps that：1-2 parts of composite of mass fraction is mutually mixed with 10-15 parts of enhancing, constituted The Toughened Materials of composite construction, Toughened Materials are coated on hot roll work roll surface or are sent to roller using coaxial powder-feeding mode in advance On body surface, precoating thickness is painting 0.2-0.3mm；Laser compound processing processing is carried out using Laser Processing unit, in roll table Toughened and strengthened layer is formed in the 0.5-2.0mm depth of face.
The Laser Processing unit is operated using intelligent robot, laser power density 2x105w/cm2, hot spot Φ 5mm sweep Speed 60-100mm/s is retouched, laser compound processing processing is carried out, Mass distribution is formed in roller surface 0.5-2.0mm depth Solution strengthening and the toughened and strengthened layer of precipitation strength.
By the hot roll of laser composite intensive treatment of the present invention, working surface formation between micron particles metal The obdurability strengthening layer for the coordinated that compound composite material is collectively constituted with nanoscale reinforcing materials, contrasts prior art list Pure nano ceramic material laser reinforcing processing, maintains the fatigue strength such as high temperature hardness, high abrasion, anti-oxidant, wear resistant corrosion resistant Basis, adds strengthening layer toughness and tenacity, improves because of the cracking tendency that fragility is brought.Hot roll can be significantly improved crosses steel Amount, extends the roll change cycle, increases the service life more than 50%.
The beneficial effects of the invention are as follows：By the hot roll of laser composite intensive treatment, working surface forms tough Property strengthening layer, maintain the fatigue strength such as high temperature hardness, high abrasion, anti-oxidant, wear resistant corrosion resistant basis, add strengthening layer strong Tough performance, improves because of the cracking tendency that fragility is brought, can significantly improve the steel transportation amount of hot roll, extend the roll change cycle.
Embodiment
Below in conjunction with by example, the invention will be further described.
A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, includes following processing step：
Using intermetallic compound Fe3Al and ZrO2Composite, participate in laser nano intensive treatment；So, effectively Utilization this compound-material high intensity, high-temerature creep, heat endurance, anti-oxidant and corrosion-resistant etc. the performance that have；Meanwhile, In compound phase, the superposition of its distinctive a variety of strengthening and toughening mechanism and the cooperative effect of additional are made full use of；For Increase the toughness and tenacity in the reinforcing of hot roll laser nano, improve the toughness reinforcing index of hardening constituent；
The composite, is intermetallic compound Fe3Al and ZrO2, micron particles are fabricated to by equal proportion share Shape material.
Using nano level base carbide as enhancing phase, the component mass fraction of enhancing phase is：Nano level 60-70 Part Ti bases carbide, 4-6 parts of Si bases carbide, 1-2 parts of W bases carbide, 1-2 parts of Cr base carbide；Enhancing mutually improves ceramics Material embrittlement, forms dominant complementation effect；Possess high temperature hardness, it is elevated temperature strength, high high-temp stability, wear-resistant, resistance to The features such as collaboration of burn into toughness reinforcing and not aging, reach that intermetallic compound composite material is matched somebody with somebody with tough cooperate with of ceramic material Close, obtain solution strengthening and dispersion-strengtherning and precipitation strength and toughened and strengthened effect；
Comprise the following steps that：1-2 parts of composite of mass fraction is mutually mixed with 10-15 parts of enhancing, constituted The Toughened Materials of composite construction, Toughened Materials are coated on hot roll work roll surface or are sent to roller using coaxial powder-feeding mode in advance On body surface, precoating thickness is painting 0.2-0.3mm；Laser compound processing processing is carried out using Laser Processing unit, in roll table Toughened and strengthened layer is formed in the 0.5-2.0mm depth of face.
The Laser Processing unit is operated using intelligent robot, laser power density 2x105w/cm2, hot spot Φ 5mm sweep Speed 60-100mm/s is retouched, laser compound processing processing is carried out, Mass distribution is formed in roller surface 0.5-2.0mm depth Solution strengthening and the toughened and strengthened layer of precipitation strength.
In the present embodiment, the hot roll of rolled threaded steel, material is to be manufactured containing chromium, nickel infinitely chilled ductile cast iron.Specification is Φ 370x650x1513mm, hardness of roll body are 72-74HSD.In the bad working environments bar such as high temperature, high pressure, alternating hot and cold in work Under part, it is hot roll service life cycle short principal element to produce the fatigue damages such as abrasion, fire check, corrosion.
Using present invention process, micron particles Fe3Al and ZrO2Composite is made with nanoscale Si, Ti, Cr, W base carbide Mutually mixed for enhancing, constitute the Toughened Materials of composite construction, the technical performance index for lifting hot roll extends it Steel transportation amount and cycle service life.
First, by after new roll or cycle use by turning（Or grinding）Stand-by roll barrel surface is uniformly precoated afterwards The Toughened Materials of the composite construction of 0.2-0.3mm thickness, it would however also be possible to employ coaxial powder-feeding mode.Using 3KW semiconductor lasers Processing combination and single arm type intelligent robot control operation.Laser power density 2x105w/cm2, hot spot Φ 5mm, scanning Speed 70mm/s, the toughened and strengthened layer of 0.5-2.0mm depth is handled in body surface laser reinforcing.
By the hot roll of laser treatment, used in input Rolling production.Due to using obdurability intensive treatment, compared to original Pure laser nano ceramic material intensive treatment, the cycle steel transportation amount and service life of hot roll are substantially increased, every heat Roll totality service life improves about 80%.

Claims (2)

1. a kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser, it is characterised in that include following technique step Suddenly：
1. intermetallic compound Fe is used3Al and ZrO2Composite, participate in laser nano intensive treatment；The composite, For intermetallic compound Fe3Al and ZrO2, micron particles shape material is fabricated to by equal proportion share；
2. using nano level base carbide as enhancing phase, the component mass fraction of enhancing phase is：Nano level 60-70 parts of Ti Base carbide, 4-6 parts of Si bases carbide, 1-2 parts of W bases carbide and 1-2 parts of Cr base carbide；
Comprise the following steps that：1-2 parts of composite of mass fraction is mutually mixed with 10-15 parts of enhancing, composition is compound The Toughened Materials of structure, Toughened Materials are coated on hot roll work roll surface or are sent to body of roll table using coaxial powder-feeding mode in advance On face, precoating thickness is painting 0.2-0.3mm；Laser compound processing processing is carried out using Laser Processing unit, in roller surface Toughened and strengthened layer is formed in 0.5-2.0mm depth.
2. a kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser according to claim 1, its feature It is：The Laser Processing unit is operated using intelligent robot, laser power density 2x105w/cm2, hot spot Φ 5mm, scanning Speed 60-100mm/s, carries out laser compound processing processing.
CN201710128280.8A 2017-03-06 2017-03-06 A kind of toughened and strengthened technique of roller surface intermetallic compound recombination laser Active CN106835124B (en)

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CN107988595B (en) * 2017-11-30 2020-12-11 钢铁研究总院 Preparation of Fe by laser cladding3Al/Cr3C2Method for composite coating
CN110885976A (en) * 2019-11-15 2020-03-17 唐山市兆寰冶金装备制造有限公司 Laser banded nano composite strengthening process
CN110747457A (en) * 2019-11-15 2020-02-04 唐山市兆寰冶金装备制造有限公司 Method for reinforcing railway turnout forging and pressing die based on ceramic carbon/carbon combined laser
CN112626378B (en) * 2020-11-30 2021-09-14 湖南金天铝业高科技股份有限公司 Iron-aluminum alloy composite reinforced aluminum-based material, and preparation method and application thereof

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US6368406B1 (en) * 2000-09-13 2002-04-09 Chrysalis Technologies Incorporated Nanocrystalline intermetallic powders made by laser evaporation
CN103060800B (en) * 2013-01-28 2015-11-18 山东建筑大学 For material and the laser cladding method of Laser Cladding on Titanium Alloy
CN104233288B (en) * 2014-09-15 2018-06-26 华东交通大学 A kind of preparation method of TiCFeAl bases wear-resistant coating

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