CN106756256A - One kind is used for big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-base alloy material - Google Patents
One kind is used for big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-base alloy material Download PDFInfo
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- CN106756256A CN106756256A CN201611240855.7A CN201611240855A CN106756256A CN 106756256 A CN106756256 A CN 106756256A CN 201611240855 A CN201611240855 A CN 201611240855A CN 106756256 A CN106756256 A CN 106756256A
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- big
- roll
- attrition
- sized section
- section roll
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
Abstract
The present invention discloses a kind of big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-based alloy powder, and the material composition for being characterized in the Co-based alloy powder is by weight percentage：C：0.55 1.25%, Cr：20.00 27.00%, Si：1.00 1.30%, Ni：10.00 15.00%, Mn：0.20 0.50%, W：5.50 11.50%, Fe：1.00 1.50%, B：3.00 5.00%, N：2.50 5.20%, balance of Co.The present invention is by the proportioning in optimization design laser cladding powder powder material, design the anti-attrition heat resistance material of suitable big-and-middle-sized section roll, cladding layer is manufactured on big-and-middle-sized section roll surface by laser melting and coating technique, the abrasion resistance properties demand under conditions of the HTHP of roll is met.
Description
Technical field
The present invention relates to a kind of metallurgical equipment components laser composite manufacturing anti-attrition heat shield, more particularly to a kind of big-and-middle-sized type
Material roll laser composite manufacturing can form the anti-attrition heat resistanceheat resistant Co-based alloy powder of stabilization oxide-film, belong to laser melting and coating technique neck
Domain.
Background technology
Roll is one of main consumption spare part in Rolling production, if it is considered that the shutdown brought by roll consumption, drop are produced
And plant maintenance, the proportion that roll consumption accounts for production cost is very big.Sheet material and middle-size and small-size section roll are due to centrifugal compound system
The maturation for making technology substantially increases service life and product quality, completes its update, but big-and-middle-sized section roll roller
Footpath is big and because pass compound section diameter drop is big, and roll bulk life time is short and centrifugal casting cannot be applicable, and causes big-and-middle-sized
The roller consumption of section roll is very high.Big-and-middle-sized section roll pass complexity is rolled while subject HTHP in the course of the work
Roller surface has strong metal flow with high temperature rolled piece surface, causes roller surface temperature rise that companion while oxide etch seriously occurs
There is violent abrasion, while increased the hot amplitude of roller surface alternating hot and cold.Because pass complexity is necessarily deposited in roller surface
There is adhesive wear between the neutral point of metal flow, i.e. roll and stocking.Ultimately result in big-and-middle-sized section roll failure shape
Formula shows as entirety and heat fatigue cracking occurs, uneven part of wearing and tearing（The skew wall of pass）Wear extent is big, and there is steel bonding and chi
Very little larger fold, influences section configuration, dimensional accuracy and the surface quality of section bar.Rolled to meet the big-and-middle-sized section bar of strength demand
Roller body of roll weight, is limited that access times are few by pass, cause big-and-middle-sized section roll have the quality on 85% all underuse and
It is changed into scrap iron, increases waste of resource serious while big-and-middle-sized section bar production cost.If the overall high-speed steel roll of manufacture is carried
The life-span of tall and big medium section roll, though improving single pass amount greatly improves production cost.So, current big-and-middle-sized type
A kind of urgently new technological revolution of material roll, improves the utilization rate and reduces cost of roll material.
Laser melting and coating technique, is a kind of process for modifying surface, and one layer of the surface cladding by high energy laser beam in matrix melts
Coating realizes not influenceed while the metallurgical binding of matrix and cladding layer the material of matrix.With the combination process phase such as built-up welding, spraying
It is more flexible than operating, the metallurgical bonding layer realized with matrix flawless is not limited by metal material species, thickness and basic material,
The metallurgical quality of the small cladding layer in matrix heat affected area is high, the stomata and be mingled with that more than 20 μm of nothing, and is much better than what current roll was commonly used
Technique for overlaying.
Laser melting and coating technique has obtained rapid popularization and extensive in recent years as a kind of advanced manufacture and re-manufacturing technology
Using.But big-and-middle-sized section roll operating mode is complicated, the performance requirement to cladding layer is very high, not only to have good heat resistanceheat resistant tired
Labor performance will have high temperature red hardness and good wearability simultaneously.At present.In the market is without can be directly used for carrying out laser
Cladding manufactures the alloy powder material of big-and-middle-sized section roll.Therefore, need to research and develop a kind of multiple for big-and-middle-sized section roll laser
The alloy material of manufacture is closed, not only there is good anti-fatigue performance to meet the strong alternating hot and cold of roll, while meeting
Wear-corrosion resistance under high temperature.High temperature abrasion resistance is improved, high temperature stocking is especially overcome on big-and-middle-sized section roll surface
Flowing and adhesive wear, single raising hardness is unable to reach Expected Results, the anti-attrition factor need to be added in cladding layer,
The coefficient of friction of reduction roll and stocking part further reduces frictional force and realizes that high-temperature wearable is designed.The operating mode of roll is and 1000
DEG C red heat steel billet contact, the surface of steel billet can form thick oxide-film in the course of work, while the surface of roll also can shape
Into layer oxide film, the formation of the oxide-film of roller surface and the accumulation that comes off show the abrasion of roll.So the surface of roll
If alloy-layer can form the oxide-film of stabilization, while improved by there is the matrix of sufficiently high temperature intensity as support rolling
The wearability of roller.
The content of the invention
The purpose of the present invention is that and solves the above mentioned problem that prior art is present, by after repetition test, developing one
Plant the anti-attrition heat-resisting alloy material for meeting big-and-middle-sized section roll duty requirements.The anti-attrition heat-resisting alloy material can be by laser
Melting and coating technique is in big-and-middle-sized section roll surface manufacture cladding layer and can form stabilization oxide-film, so as to the high temperature for meeting roll is high
Abrasion resistance properties demand under conditions of pressure.
The technical scheme that the present invention is given is：A kind of big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant cobalt-base alloys
Powder, the material composition for being characterized in the Co-based alloy powder is by weight percentage.
C：0.55-1.25%, Cr：20.00-27.00%, Si：1.00-1.30%, Ni：10.00-15.00%,
Mn：0.20-0.50%, W：5.50-11.50%, Fe：1.00-1.50%, B：3.00-5.00%,
N：2.50-5.20%, balance of Co.
The characteristics of this alloy powder is with cobalt-base alloys as matrix, using the high-temperature stability and high-temperature corrosion resistance of cobalt
Performance, meets the high-temperature stability demand of big-and-middle-sized section roll operating mode；The content for improving carbon content and alloying element obtains one
Determine the strength demand and certain wearability demand under the carbide hard sexual satisfaction draught pressure of volume fraction；Above all
The hexagonal boron nitride BN solid lubrication factors are added, the design requirement of anti-attrition is played, lubricated under the situation of the adhesive wear of high temperature
The addition of the factor lower significantly coefficient of friction from it is basic lower frictional force and then play a part of anti-attrition greatly improve cladding layer
Wearability；A large amount of additions of nickel element also function to the effect of stable austenite cobalt-based, ensure the stability of cladding layer；Carbide and
The presence of BN particles also functions to the toughness of the effect raising cladding layer of crystal grain thinning;Cobalt-based body and substantial amounts of chromium are added in simultaneously
Form compact and stable oxide-film can be formed under the thermal condition of rolling on the surface of alloy-layer.
The present invention be given with anti-attrition, anti-corrosion, thermal fatigue resistance laser melting coating Co-based alloy powder, in actual behaviour
6kw optical fiber lasers are used in work, the laser cladding technological parameter on big-and-middle-sized section roll surface is：Power：2800-
4000W, spot diameter：3-4.6mm, sweep speed.500-1000mm/min, overlapping rate：45-65%, powder feed rate：25-35g/
min。
Anti-attrition heat resistanceheat resistant Co-base alloy material of the present invention has thermal fatigue resistance, resistance to high temperature corrosion, anti abrasive performance, specially application
In big-and-middle-sized section roll.Using the presence of its anti-attrition particle boron nitride BN, the contact surface of roll and stocking rises at high temperature
To the effect of anti-attrition, cobalt-base alloys matrix meets heat resistanceheat resistant demand simultaneously to improve friction condition from basic reduction roll-force, significantly
Improve the life-span that is intended for single use of big-and-middle-sized section roll, and roll wear rate reduction surface holding capacity strengthens, and is applied to big
Labor operation rate, rate of becoming a useful person and mill bar quality are greatly improved in medium section production.Laser composite manufacturing is repeated simultaneously
Using basic material, the utilization rate of roll entirety material is increased, substantially increase resource utilization, reduced and scrap roll
Energy loss.
Compared with prior art, the beneficial effects of the invention are as follows.
Compared with existing integral cast steel roll and hot charging high speed steel roll collar, anti-attrition heat resistanceheat resistant cobalt-base alloys cladding layer has tripartite
Protrude advantage in face：First, cobalt-base alloys and substantial amounts of chromium improve high temperature corrosion resistance and high-temperature stability, improve fatigue resistance
Energy and corrosion resistance；Secondly, a large amount of carbon and wolfram element are designed, and a large amount of hard particles are distributed on cobalt-based body, and elevated temperature strength is far above low
Alloy casting iron-base material；Finally, the addition of the boron nitride BN anti-attritions factor, between fundamentally reducing coefficient of friction improvement friction pair
Friction condition.Meet the complex working condition abrasion demand of the HTHP of big-and-middle-sized section roll.
Specific embodiment
Embodiment 1.
Use 6KW optical fiber lasers, R ＆ D design anti-attrition heat resistanceheat resistant Co-based alloy powder carries out laser to big-and-middle-sized section roll
Cladding.The composition of anti-attrition heat resistanceheat resistant Co-base alloy material is, C：0.85%, Cr：23.00%, Si：1.10%, Ni：10.00%, Mn：
0.25%, W：8.50%, Fe：1.05%, B：3.00%, N：2.50%, balance of Co.Clear up first it is offline after roll worksheet
Face, the crackle on surface is processed totally by the way of turnery processing, and carrying out cleaning with acetone goes to degrease；By anti-attrition heat resistanceheat resistant cobalt
Base alloy powder carries out 200 DEG C of drying and processings of insulation 2h.Cladding condition uses melting and coating process parameter after possessing：Power 3500W,
Sweep speed 800mm/min, overlapping rate 50%, synchronous powder feeding system 32g/min carries out laser melting coating.Anti-attrition prepared by laser melting coating resists
After the hot big-and-middle-sized section roll of cobalt-base alloys is through test of reaching the standard grade, roll high-temperature stability is improved, and elevated temperature strength greatly improves, and red
The holding capacity enhancing of surface smoothness when the steel billet of heat is contacted, simultaneously because the presence of anti-attrition boron nitride BN particles is improved and rolled
Roller and the friction condition of steel billet, increase the high temperature abrasion resistance of roll and the holding capacity of surface smoothness.Laser melting coating anti-attrition resists
The hot big-and-middle-sized section roll of cobalt-base alloys composite manufacturing, wearability raising, steel transportation amount increase, improve production efficiency and yield rate,
Greatly reduce roller consumption.
Embodiment 2.
6KW optical fiber lasers, the anti-attrition heat resistanceheat resistant Co-based alloy powder of R ＆ D design is used to swash big-and-middle-sized section roll
Light cladding.The composition of anti-attrition heat resistanceheat resistant Co-base alloy material is, C：1.10%, Cr：25.00%, Si：1.20%, Ni：11.00%, Mn：
0.40%, W：10.00%, Fe：1.20%, B：3.5%, N：3.85%, balance of Co.Clear up first it is offline after roll worksheet
Face, the crackle on surface is processed totally by the way of turnery processing, and carrying out cleaning with acetone goes to degrease；By anti-attrition heat resistanceheat resistant cobalt
Base alloy powder carries out 200 DEG C of drying and processings of insulation 2h.Cladding condition uses melting and coating process parameter after possessing：Power 3000W,
Sweep speed 700mm/min, overlapping rate 55%, synchronous powder feeding system 30g/min carries out laser melting coating.Anti-attrition prepared by laser melting coating resists
The hot big-and-middle-sized section roll of cobalt-base alloys, Laser Cladding Quality is good, through the skill beam request of Non-Destructive Testing composite roll, through reaching the standard grade
After test, the high-temperature stability of roll is improved, and elevated temperature strength is greatly improved, the guarantor of surface smoothness when being contacted with the steel billet of red heat
Ability enhancing is held, simultaneously because the presence of anti-attrition particle boron nitride BN improves the friction condition of roll and steel billet, increases roll
High temperature abrasion resistance and surface smoothness holding capacity.The laser melting coating anti-attrition heat resistanceheat resistant big-and-middle-sized section bar of cobalt-base alloys composite manufacturing
Roll, wearability is improved compared with monoblock cast roll and surfacing roll, and steel transportation amount increases, and improves production efficiency and finished product
Rate, greatly reduces roller consumption, reduces the manual intervention in the operation of rolling.
Claims (3)
1. a kind of big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-based alloy powder, it is characterised in that the cobalt-base alloys
The material composition of powder is by weight percentage：
C：0.55-1.25%, Cr：20.00-27.00%, Si：1.00-1.30%,
Ni：10.00-15.00%, Mn：0.20-0.50%, W：5.50-11.50%,
Fe：1.00-1.50%, B：3.00-5.00%, N：2.50-5.20%, balance of Co.
2. big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-based alloy powder according to claim 1, it is special
Levy is that the material composition of the Co-based alloy powder is by weight percentage：
C：0.85%, Cr：23.00%, Si：1.10%, Ni：10.00%, Mn：0.25%, W：8.50%, Fe：1.05%, B：3.00%,
N：2.50%, balance of Co.
3. big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-based alloy powder according to claim 1, it is special
Levy is that the material composition of the Co-based alloy powder is by weight percentage：
C：1.10%, Cr：25.00%, Si：1.20%, Ni：11.00%, Mn：0.40%, W：10.00%, Fe：1.20%, B：3.5%,
N：3.85%, balance of Co.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611240855.7A CN106756256A (en) | 2016-12-29 | 2016-12-29 | One kind is used for big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-base alloy material |
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| CN201611240855.7A CN106756256A (en) | 2016-12-29 | 2016-12-29 | One kind is used for big-and-middle-sized section roll laser composite manufacturing anti-attrition heat resistanceheat resistant Co-base alloy material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983113A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Cobalt-based high-temperature alloy wire and preparation method thereof |
| CN113621853A (en) * | 2021-08-18 | 2021-11-09 | 沈阳大陆激光先进制造技术创新有限公司 | Alloy material for laser manufacturing and remanufacturing of minimum flow valve core of power plant and preparation method thereof |
| CN115287502A (en) * | 2022-08-11 | 2022-11-04 | 沈阳大陆激光技术有限公司 | Alloy material for laser manufacturing and remanufacturing of rolling mill housing in steel mill and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110983113A (en) * | 2019-12-31 | 2020-04-10 | 江苏新华合金有限公司 | Cobalt-based high-temperature alloy wire and preparation method thereof |
| CN113621853A (en) * | 2021-08-18 | 2021-11-09 | 沈阳大陆激光先进制造技术创新有限公司 | Alloy material for laser manufacturing and remanufacturing of minimum flow valve core of power plant and preparation method thereof |
| CN115287502A (en) * | 2022-08-11 | 2022-11-04 | 沈阳大陆激光技术有限公司 | Alloy material for laser manufacturing and remanufacturing of rolling mill housing in steel mill and preparation method thereof |
| CN115287502B (en) * | 2022-08-11 | 2023-10-20 | 沈阳大陆激光技术有限公司 | Alloy material for laser manufacturing and remanufacturing of mill housing of steel mill and preparation method thereof |
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Application publication date: 20170531 |