CN104294268B - A kind of wear-resisting deflector roll preparation method - Google Patents
A kind of wear-resisting deflector roll preparation method Download PDFInfo
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- CN104294268B CN104294268B CN201410454291.1A CN201410454291A CN104294268B CN 104294268 B CN104294268 B CN 104294268B CN 201410454291 A CN201410454291 A CN 201410454291A CN 104294268 B CN104294268 B CN 104294268B
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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Abstract
A kind of wear-resisting deflector roll preparation method, belongs to high-abrasive material technical field.Casting method is first used to manufacture deflector roll body, the chemical composition of deflector roll body and mass percent thereof be: 0.30～0.45C, 15.0～18.0Cr, 8.0～10.0Mn, 0.30～0.42N, 4.0～5.5Ni, 0.2～0.6Si, 0.06～0.10Nb, S < 0.03, P < 0.04, surplus is Fe and inevitable impurity.Deflector roll body is after roughing, then at the high hardness wear-resisting cladding layer that its work surface coating thickness is 1.8～2.5mm, so that the deflector roll life-span increases substantially.
Description
Technical field
The invention discloses the preparation method of a kind of deflector roll, particularly to a kind of wear-resisting deflector roll preparation method, belong to
High-abrasive material technical field.
Background technology
The sixties in 20th century First brand new the 45 ° of high speed wire rod finishing blocks of root that rub come out after, cause
The revolutionary variation in wire production field.Constantly improving through nearly more than 40 years and update, wire rod rolls
Speed processed breaches the conventional limit, rises to the surprising high speed of 120～150m/s.Along with mill milling speed
The raising of degree, sliding guide device is gradually scrolled guide and guard (deflector roll) and is replaced.Deflector roll is on high-speed rod-rolling mill
Main consumable tool, domestic Year's consumption more than 5,000,000, the deflector roll Year's consumption of international market
800～10,000,000.In deflector roll work in addition to the rubbing action bearing wire rod, also by impact and the height of wire rod
The heating of temperature wire rod and the Quench of cooling water, deflector roll requires high rigidity, high tenacity, high thermal fatigue resistance and anti-stick
Rigidity.But, the deflector roll that current China manufactures is relatively low for service life, affects Rolling production efficiency and product is qualified
The raising of rate.In order to improve deflector roll performance, Chinese invention patent CN 103882424 discloses a kind of with swashing
The preparation method of the high-speed rod-rolling mill Roll Collar of light cladding coating, is characterized in that the method comprises the following steps:
A. the matrix of Roll Collar selects bearing steel, medium carbon steel or low-alloy steel material, by deflector roll finished size, uses car
Bed carries out roughing, and each machined surface reserves the allowance for finish of 0.2-0.5mm；B. recessed to the rolling face of laser melting coating
Groove location carries out turning and goes out the cladding surplus of 0.5-1.5mm, and is cleaned cladding face processing；C. configure resistance to
Mill cladding material, selects the Ni-based or cobalt-based laser cladding powder of chrome carbide reinforcing material；D. high power is used
CO2 or YAG or quasiconductor or optical fiber laser carry out laser melting coating in the rolling face direct powder feeding of groove surfaces and sweep
Retouching, YAG laser laser power is 300W～500W, CO2, quasiconductor and optical fiber laser be 2000W～
4000W, scanning speed at 1mm/s-15mm/s, the allowance of coating layer thickness 0.3mm～0.5mm to be stayed；
E. the rotary roll after laser melting coating is carried out polish, reach dimensional accuracy and surface smoothness requirements.In
State patent of invention CN 101695713A also discloses WC composite guide roller and manufacture method thereof, and composite guide roller is
There is composite layer on the surface of steel matrix, it is characterized in that steel matrix is that carbon content is by weight percentage
0.2～the carbon steel of 0.7% or steel alloy；Composite layer material composition by weight percentage is:
WC be 10～50%, C be 0.2～0.8%, Cr be 0～3.0%, Mo be 0～
2.0%, Mn be 0～2.0%, RE be 0.11-0.5%, other metal and Fei Jin
Belonging to element total amount and be less than 5%, surplus is Fe.By composite material powder with the coating method of plasma spraying
It is coated on steel matrix surface, and uses argon arc remelting method to make its remelting together with steel matrix, on steel matrix surface
Form composite layer；Or directly composite material powder is sprayed on steel matrix surface, and use argon arc remelting side
Method makes its remelting together with steel matrix.This invention composite guide roller hardness is high, wearability is good, fragility is low, Ke Rechu
Reason, can machining, low cost, cost performance high.Chinese invention patent CN 1931462 also discloses SiC
Composite guide roller and manufacture method thereof, is characterized in that there is composite layer on the surface of steel matrix, composite layer
Material composition is: SiC5～40%, C0.2～0.6%, Cr0～3.0%, M
O0～2.0%, Mn0～2.0%, other metal and nonmetalloid total amount are less than 5%,
Surplus is Fe.Composite material powder or wire rod or bar are with thermal spraying, hot spray-welding or the coating side of laser cladding
Method is coated on steel matrix surface, is formed and combine between composite and described steel matrix.This invention composite guide roller
Possessing hardness high, wearability is good, and fragility is relatively low, can heat treatment, can machining, low cost, cost performance is high
Deng premium properties.Chinese invention patent CN1990906 also discloses in a kind of bar and wire mill deflector roll and rises
Set roller energetic ion injects tungsten carbide (WC) functionally gradient material (FGM) manufacturing technology, and this invention is by coarse vacuum situation
Under be properly filled into noble gas, and under the conditions of abnormal glow discharge, formed high energy tungsten ion and noble gas from
Son.First after deflector roll or loop-rising roll being carried out gas soft nitriding process, the most at a certain temperature, by tungsten
Ion implanting is to deflector roll or loop-rising roll surface, then tungsten is carried out carbonization treatment；Or first by deflector roll or loop-rising roll
After carrying out gas soft nitriding process, then carry out the double ion high energy ion implantation of tungsten ion and carbon ion.This technology
The diamondite layer of certain depth can be formed on the top layer of deflector roll or loop-rising roll, improve the hard of metal surface
Degree, improves deflector roll or the wearability on loop-rising roll surface, heat-resisting quantity and self lubricity.Manufacture with this invention
Product has high temperature resistant, high rigidity, high intensity, high abrasion, an advantage such as corrosion-resistant, and considerably improves and lead
Roller or the service life of loop-rising roll.Chinese patent 201120010122.0 also discloses a kind of composite wear-resistant steel rolling
Deflector roll, including deflector roll matrix and the abrasion resistant coatings being coated on described deflector roll matrix surface, coating layer thickness is
0.1mm～2mm；The through hole coaxial with deflector roll matrix is had in the middle of deflector roll matrix.Abrasion resistant coatings
Material is the one in high alloy material or cermet material.The material of deflector roll matrix be potassium steel, mild steel,
One in steel alloy, grey cast-iron or spheroidal graphite cast-iron.This utility model is particularly suited for steel rolling continuous-rolling system
Rolling guide, has the performances such as wear-resistant, high temperature resistant, the heat shock resistance that can improve deflector roll, extends deflector roll
Service life and reduce the manufacture cost and other advantages of deflector roll.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deflector roll of prior art generally to there is the deficiencies such as hardness is low, wear no resistance,
There is provided a kind of in low-alloy guide roller surface by laser cladding method, coat one layer of hardness height, high temperature abrasion resistance good,
The alloy material of anti-chilling and shock heating excellent performance, thus realize increasing substantially of deflector roll wearability.
The object of the invention can be realized by following processing step:
Casting method is the most first used to manufacture deflector roll body, the chemical composition of deflector roll body and percent mass thereof
Number is: 0.30～0.45C, 15.0～18.0Cr, 8.0～10.0Mn, 0.30～0.42N, 4.0～5.5Ni, 0.2～0.6Si,
< 0.03, P < 0.04, surplus is Fe and inevitable impurity for 0.06～0.10Nb, S.Casting deflector roll body is through clear
After sand, polishing, it is heated to 1030～1050 DEG C with stove, water-cooled, subsequently roughing after being incubated 1～2 hour；
2. ferrochrome powder, vanadium iron powder, titanium-iron powder, ferro-boron powder, molybdenum-iron powder, ferrotungsten powder and straight iron powder dispensing are used,
Above-mentioned powder 140～200 mesh, the method using synchronous powder feeding system, by laser instrument deflector roll body work after roughing
Preparing wear-resisting cladding layer, the chemical composition of wear-resisting cladding layer and mass percent thereof as surface is: 10.0～10.8Cr,
2.0～2.5V, 0.5～0.8Ti, 1.8～2.2B, 4.5～5.2Mo, 6.5～7.0W, 1.20～1.35C, < 0.7Si, < 0.02S,
< 0.03P, surplus is Fe and inevitable impurity.
Laser spot size is that 5mm × 5mm, laser head and powder-supplying spray head are fixed on an industrial machine human arm
On, it being passed through argon shield molten bath during cladding, the thickness after wear-resisting cladding layer cladding is 1.8～2.5mm, finally essence
It is machined to dimensions and precision that deflector roll specifies, wear-resisting deflector roll can be obtained, the wear-resisting deflector roll of finished product wear-resisting cladding thickness
Degree is 1.5～2.0mm.
Chemical composition and the mass percent thereof of the present invention wear-resisting deflector roll body be: 0.30～0.45C,
15.0～18.0Cr, 8.0～10.0Mn, 0.30～0.42N, 4.0～5.5Ni, 0.2～0.6Si, 0.06～0.10Nb, S < 0.03,
P < 0.04, surplus is Fe and inevitable impurity.Above-mentioned bulk material, can after 1030～1050 DEG C quench
Obtain the austenitic matrix tissue that intensity height, toughness and corrosion resistance are good, it can be ensured that reusing of deflector roll body.
On deflector roll body after roughing, the method using synchronous powder feeding system, prepare wear-resisting painting with laser instrument cladding
Layer, has fine microstructures, densification, and cladding layer and presents good metallurgical binding with deflector roll body, it is ensured that deflector roll
Do not crack and flake off in using.The chemical composition of cladding layer and mass percent thereof be: 10.0～10.8Cr,
2.0～2.5V, 0.5～0.8Ti, 1.8～2.2B, 4.5～5.2Mo, 6.5～7.0W, 1.20～1.35C, < 0.7Si, < 0.02S,
< 0.03P, surplus is Fe and inevitable impurity, it can be ensured that cladding layer has high rigidity, excellent wearability
With thermal fatigue resistance energy.
The present invention compared with prior art, has the following characteristics that
1) the laser cladding layer hardness on deflector roll body of the present invention is more than 65HRC, has the wearability of excellence；
2) deflector roll bulk strength of the present invention height, toughness and corrosion resistance are good, can recycle；
3) the wear-resisting deflector roll of the present invention improves 3～4 times than high nickel chrome steel deflector roll service life on high-speed rod-rolling mill.
Accompanying drawing explanation
Fig. 1 wear-resisting guide roller structure schematic diagram；
The wear-resisting cladding layer of 1-, 2-deflector roll body.
Detailed description of the invention
Below in conjunction with embodiment, the present invention done statement further, but the present invention is not limited to following example.Resistance to
Mill guide roller structure schematic diagram such as Fig. 1, it is also possible to being other structures improved, this is not the emphasis of the present invention.
Embodiment 1:
Deflector roll in high-speed rod rolling mill K5 frame, its step of preparation process is:
Casting method is the most first used to manufacture deflector roll body 2, the chemical composition of deflector roll body 2 and quality thereof
Percent is: 0.32C, 15.07Cr, 9.85Mn, 0.31N, 5.48Ni, 0.27Si, 0.064Nb, 0.021S, 0.033P,
Surplus is Fe and inevitable impurity.Casting deflector roll body 2, after sand removal, polishing, is heated to 1030 with stove
DEG C, water-cooled, subsequently roughing after being incubated 2 hours.
2. the ferrochrome powder of 140～200 mesh, vanadium iron powder, titanium-iron powder, ferro-boron powder, molybdenum-iron powder, ferrotungsten powder are used
With straight iron powder dispensing, the method using synchronous powder feeding system, exist with the 6kW optical fiber laser that wavelength is 1070nm
Deflector roll body 2 working surface after roughing prepares wear-resisting cladding layer 1, the chemical composition of wear-resisting cladding layer 1 and
Its mass percent is: 10.04Cr, 2.47V, 0.52Ti, 2.19B, 4.51Mo, 6.94W, 1.23C, 0.38Si,
0.013S, 0.019P, surplus is Fe and inevitable impurity.Laser spot size is 5mm × 5mm, swashs
Shaven head and powder-supplying spray head are fixed in an ABB industrial machine human arm, are passed through argon shield molten bath during cladding,
Wear-resisting cladding layer 1 thickness is 1.90mm, is finally refined to dimensions and precision that deflector roll specifies, can obtain
Wear-resisting deflector roll, the wear-resisting deflector roll of finished product wear-resisting cladding layer 1 thickness is 1.55mm, wear-resisting cladding layer 1 hardness 65.6
HRC。
Embodiment 2:
Deflector roll in high-speed rod rolling mill K8 frame, its step of preparation process is:
Casting method is the most first used to manufacture deflector roll body 2, the chemical composition of deflector roll body 2 and quality thereof
Percent is: 0.44C, 17.73Cr, 8.06Mn, 0.42N, 4.08Ni, 0.55Si, 0.096Nb, 0.025S, 0.037P,
Surplus is Fe and inevitable impurity.Casting deflector roll body 2, after sand removal, polishing, is heated to 1050 with stove
DEG C, water-cooled, subsequently roughing after being incubated 1 hour.
2. the ferrochrome powder of 140～200 mesh, vanadium iron powder, titanium-iron powder, ferro-boron powder, molybdenum-iron powder, ferrotungsten powder are used
With straight iron powder dispensing, the method using synchronous powder feeding system, exist with the 6kW optical fiber laser that wavelength is 1070nm
Deflector roll body 2 working surface after roughing prepares wear-resisting cladding layer 1, the chemical composition of wear-resisting cladding layer 1 and
Its mass percent is: 10.74Cr, 2.02V, 0.78Ti, 1.81B, 5.17Mo, 6.54W, 1.32C, 0.40Si,
0.009S, 0.015P, surplus is Fe and inevitable impurity.Laser spot size is 5mm × 5mm, swashs
Shaven head and powder-supplying spray head are fixed in an ABB industrial machine human arm, are passed through argon shield molten bath during cladding,
Wear-resisting cladding layer 1 thickness is 2.4mm, is finally refined to dimensions and precision that deflector roll specifies, can obtain resistance to
Mill deflector roll, the wear-resisting deflector roll of finished product wear-resisting cladding layer 1 thickness is 1.96mm, wear-resisting cladding layer 1 hardness 66.1HRC.
Embodiment 3:
Deflector roll in high-speed rod rolling mill K7 frame, its step of preparation process is:
Casting method is the most first used to manufacture deflector roll body 2, the chemical composition of deflector roll body 2 and quality thereof
Percent is: 0.39C, 16.70Cr, 8.97Mn, 0.37N, 4.83Ni, 0.21Si, 0.075Nb, 0.020S, 0.027P,
Surplus is Fe and inevitable impurity.Casting deflector roll body 2, after sand removal, polishing, is heated to 1040 with stove
DEG C, water-cooled, subsequently roughing after being incubated 1 hour.
2. the ferrochrome powder of 140～200 mesh, vanadium iron powder, titanium-iron powder, ferro-boron powder, molybdenum-iron powder, ferrotungsten powder are used
With straight iron powder dispensing, the method using synchronous powder feeding system, exist with the 6kW optical fiber laser that wavelength is 1070nm
Deflector roll body 2 working surface after roughing prepares wear-resisting cladding layer 1, the chemical composition of wear-resisting cladding layer 1 and
Its mass percent is: 10.41Cr, 2.36V, 0.67Ti, 1.98B, 4.72Mo, 6.90W, 1.26C, 0.46Si,
0.014S, 0.021P, surplus is Fe and inevitable impurity.Laser spot size is 5mm × 5mm, swashs
Shaven head and powder-supplying spray head are fixed in an ABB industrial machine human arm, are passed through argon shield molten bath during cladding,
Wear-resisting cladding layer 1 thickness is 2.1mm, is finally refined to dimensions and precision that deflector roll specifies, can obtain resistance to
Mill deflector roll, the wear-resisting deflector roll of finished product wear-resisting cladding layer 1 thickness is 1.78mm, wear-resisting cladding layer 1 hardness 65.8HRC.
Deflector roll of the present invention has carried out commercial Application on high-speed rod-rolling mill, deflector roll bulk strength is high, toughness and
Corrosion resistance is good, can recycle, and the laser cladding layer hardness on deflector roll body is high, has the wearability of excellence,
Service life improves 3～4 times than high nickel chrome steel deflector roll, and popularization and application have good economic and social benefit.
Claims (4)
1. a wear-resisting deflector roll preparation method, it is characterised in that comprise the following steps:
The most first using casting method to manufacture deflector roll body, the chemical composition of deflector roll body and mass percent thereof be:
0.30～0.45C, 15.0～18.0Cr, 8.0～10.0Mn, 0.30～0.42N, 4.0～5.5Ni, 0.2～0.6Si, 0.06～0.10Nb, S < 0.03,
P < 0.04, surplus is Fe and inevitable impurity；Casting deflector roll body, after sand removal, polishing, is heated to 1030～1050 with stove
DEG C, water-cooled, subsequently roughing after being incubated 1～2 hour；
2. ferrochrome powder, vanadium iron powder, titanium-iron powder, ferro-boron powder, molybdenum-iron powder, ferrotungsten powder and straight iron powder dispensing, above-mentioned powder are used
140～200 mesh, the method using synchronous powder feeding system, prepare wear-resisting cladding with laser instrument deflector roll body working surface after roughing
Layer, the chemical composition of wear-resisting cladding layer and mass percent thereof be: 10.0～10.8Cr, 2.0～2.5V, 0.5～0.8Ti, 1.8～2.2B,
4.5～5.2Mo, 6.5～7.0W, 1.20～1.35C, < 0.7Si, < 0.02S, < 0.03P, surplus is Fe and inevitable impurity.
2. according to the method for claim 1, it is characterised in that during laser melting coating, laser spot size is 5mm × 5mm, laser
Head and powder-supplying spray head are fixed in an industrial machine human arm, are passed through argon shield molten bath during cladding.
3. according to the method for claim 1, it is characterised in that the thickness after wear-resisting cladding layer cladding is 1.8～2.5mm, finally
Being refined to dimensions and precision that deflector roll specifies, can obtain wear-resisting deflector roll, the wear-resisting deflector roll of finished product wear-resisting cladding layer thickness is
1.5～2.0mm.
4. the wear-resisting deflector roll prepared according to the either method of claim 1-3.
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| CN109967535B (en) * | 2017-12-28 | 2023-08-18 | 西安威科多机电设备有限公司 | Method for manufacturing looper roll for high speed rod and wire rolling equipment |
| CN108913975A (en) * | 2018-05-25 | 2018-11-30 | 金华华科激光科技有限公司 | A kind of method of the wear-resistant laser cladding powder and laser melting coating of 610HV or more |
| CN109440101A (en) * | 2018-10-30 | 2019-03-08 | 北京奥邦新材料有限公司 | A kind of composite ceramic powder for laser melting coating potassium steel material |
| CN110241415B (en) * | 2019-06-26 | 2021-03-12 | 王辉 | Method for manufacturing roller head of rock wool fiber forming high-speed centrifugal machine |
| CN110725690A (en) * | 2019-11-13 | 2020-01-24 | 中国铁建重工集团股份有限公司 | Novel sealing ring for main drive of shield tunneling machine and preparation method thereof |
| CN111618301B (en) * | 2020-06-05 | 2022-08-26 | 西安建筑科技大学 | Process for preparing medium carbon steel by selective laser melting |
| CN113210439B (en) * | 2021-05-08 | 2022-08-19 | 武汉春禾科技有限公司 | High-temperature wear-resistant pinch brake roll collar and preparation method thereof |
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| CN102031462B (en) * | 2010-12-20 | 2012-10-31 | 北京北科德瑞冶金工程技术有限公司 | High manganese austenitic iron-based alloy containing boron |
| CN102912240B (en) * | 2012-10-25 | 2014-05-07 | 北京工业大学 | Method for preparing high-boron wear resisting alloy through laser cladding |
| CN103484853A (en) * | 2013-09-22 | 2014-01-01 | 湖州市银鑫轧辊有限公司 | Laser cladding method applicable to roller |
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