CN110219001A - Laser alloying rolling mill lining plate and preparation method thereof - Google Patents
Laser alloying rolling mill lining plate and preparation method thereof Download PDFInfo
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- CN110219001A CN110219001A CN201910653721.5A CN201910653721A CN110219001A CN 110219001 A CN110219001 A CN 110219001A CN 201910653721 A CN201910653721 A CN 201910653721A CN 110219001 A CN110219001 A CN 110219001A
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- 238000005275 alloying Methods 0.000 title claims abstract description 127
- 238000005096 rolling process Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 77
- 238000000227 grinding Methods 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims description 23
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 238000007689 inspection Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 8
- 238000009659 non-destructive testing Methods 0.000 claims description 4
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000012545 processing Methods 0.000 description 19
- 238000003801 milling Methods 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 208000037656 Respiratory Sounds Diseases 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 12
- 230000007547 defect Effects 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000005238 degreasing Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 239000013527 degreasing agent Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 206010044325 trachoma Diseases 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- 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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention relates to a kind of laser alloying rolling mill lining plate and preparation method thereof, which includes the following steps: that (1) carries out cleaning and ungrease treatment to the substrate liner plate working surface processed；(2) it fills in each counter sink of substrate liner plate working surface and good fast dry powder, dries；(3) alloyage powder, the alloying powder includes: C:0.11~0.13wt.%, Si:1.05~2.25wt.%, Cr:14.35~16.20wt.%, Mn:1.25~1.60wt.%, the Fe of Ni:1.35~1.50wt.%, Co:2.65~2.80wt.%, TiO2:4.25%~5.60wt.% and surplus；(4) by the way of preset powdering, prepared alloying powder is uniformly sprayed at by substrate liner plate working surface by electrostatic duster；(5) substrate liner plate working surface is subjected to laser alloying, obtains laser alloying rolling mill lining plate.Using laser alloying rolling mill lining plate made from the above method, liner plate working surface hardness, wearability and quality can be significantly improved, significantly improves service life, reduces entreprise cost.
Description
Technical field
The present invention relates to field of metal surface treatment technology, in particular to a kind of laser alloying rolling mill lining plate and its preparation
Method.
Background technique
In the milling train course of work, moving component is very tight to rolling mill lining plate abrasion fixed on mill housing in milling train
Weight.Conventional liner plate is replaced frequently in actual use due to wearing no resistance, increases milling train downtime and operation cost, finds
A kind of more wear resistant, cheap milling train liner plate and preparation method thereof guarantees for improving iron and steel enterprise's milling train productivity effect
Production is carried out continuously, and reduction shutdown loss is of great significance and economic value.
In recent years, for the service life for how improving rolling mill lining plate, engineers and technicians are from manufacture, selection, assembly etc.
Aspect has carried out many improvement, such as to backing surface using induction heating heat treatment mode, selection specialty alloy materials.So
And find in actual use, using the rolling mill lining plate longevity obtained after special alloy material and induction heating process of surface treatment
Life increases, but higher cost, and cost performance is low, simultaneously as induction heating surface heat treatment process feature, handles rear lining plate
Surface hardness generally can achieve HRC45~50 or so, but depth is shallower, only 0.5~1mm, not up to manage in actual use
The service life thought.
Summary of the invention
The purpose of the present invention is to provide a kind of simple process, it is low in cost, can significantly improve rolling mill lining plate wearability and
Laser alloying rolling mill lining plate of service life and preparation method thereof, so improve milling train production efficiency, guarantee production continuously into
Row reduces lining plate replacing number, reduces entreprise cost, while saving the precious metals such as special alloy.In order to realize foregoing invention
Purpose, the present invention the following technical schemes are provided:
A kind of preparation method of laser alloying rolling mill lining plate, includes the following steps:
(1) cleaning and ungrease treatment are carried out to the substrate liner plate working surface processed；
(2) it fills in each counter sink of substrate liner plate working surface and good fast dry powder, dries；
(3) alloyage powder, the alloying powder include: C:0.11~0.13wt.%, and Si:1.05~
2.25wt.%, Cr:14.35~16.20wt.%, Mn:1.25~1.60wt.%, Ni:1.35~1.50wt.%, Co:2.65
The Fe of~2.80wt.%, TiO2:4.25%~5.60wt.% and surplus；
(4) by the way of preset powdering, prepared alloying powder is uniformly sprayed at by base by electrostatic duster
Material liner plate working surface；
(5) substrate liner plate working surface is subjected to laser alloying, obtains laser alloying rolling mill lining plate.
Preferably, the substrate liner plate processed refers to before the laser alloying, presses liner plate drawing to plate
It is processed, 0.2mm is reduced by thickness to the working surface of liner plate contact movement component and completes processing.
The preparation method of laser alloying rolling mill lining plate of the invention swashs in the high-energy density of semiconductor laser output
Under the effect of light light beam, quick metallurgical reaction, the room temperature liner plate substrate metal around occur for alloy powder and substrate surface metal
Under rapid cooling effect, obtaining that crystal grain is tiny, alloying layer of dense structure, alloying layer hardness reaches HRC60 or more, and
And flawless, stomata and inclusion defect, high abrasion liner plate working face alloying layer has been made；Meanwhile the method for the present invention is in addition to can
High rigidity, high-wear-resistant alloy layer is made in liner plate working surface, the preset alloy powder laser alloy of working surface is completed
While change, laser quenching treatment process also completed to the parent metal below alloying layer, quenching structure is from alloy-layer
Start, until going deep at liner plate intrinsic silicon 1.3-1.5mm, change of gradient is presented in the hardness of Laser Hardened Layer, by laser alloy
The following interface of layer starts, and hardness changes to HRC45 or so by HRC55, is heat affected area below quenching layer, hardness generally exists
HRC35-40 or so, heat affected area generally below quenching layer in intrinsic silicon 0.5-0.8mm depth bounds, followed by it is basic
The medium carbon low alloy steel substrate of Ge Shi hardness is not measured.By the method for the invention, high rigidity is made on medium carbon low alloy steel surface
Alloying layer, followed by the quenching layer of higher hardness, followed by the medium heat affected area of hardness, until the substrate of soft,
The liner plate working surface wearing layer for foring change of gradient, significantly improves the service life of rolling mill lining plate.
In addition, method provided by the invention has also taken conventional sufacing such as built-up welding, plasma-arc, surfacing, sense
The shortcomings that technologies such as should heat easily leads to rolling mill lining plate thermal deformation.
Preferably, the substrate liner plate is the medium carbon low alloy steels such as medium carbon low alloy steel liner plate, including 45 steel, 40Cr.
Alloying powder of the invention has fully considered the wetability and compatibility with medium carbon low alloy steel material, avoids
The appearance of crackle in alloying process has reached the requirement for saving precious metal material, energy-saving and environmental protection.
Preferably, the partial size of the alloying powder is 135~325 mesh.
Preferably, the laser scanning power of the laser alloying be 3800~4000W, scanning speed be 1000~
1200mm/min。
Preferably, the overlapping rate of the laser alloying is 10~20%.
Preferably, the size of the laser facula of the laser alloying is 2 × 14mm.
Preferably, the preset powder layer thickness is 0.6~0.8mm.
Preferably, the laser alloying coating with a thickness of 0.4~0.6mm.
Preferably, the preparation method further include: laser alloying coating is coloured by surface after laser alloying and is visited
Wound carries out non-destructive testing, and carries out grinding to laser alloy-layer.
It meanwhile the present invention also provides a kind of laser alloying rolling mill lining plate, is prepared by above-mentioned preparation method
It arrives.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with specific embodiment,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain this hair
It is bright, it is not intended to limit the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
A kind of preparation method of laser alloying rolling mill lining plate, includes the following steps:
(1) cleaning and ungrease treatment are carried out to the substrate liner plate working surface processed；
(2) it fills in each counter sink of substrate liner plate working surface and good fast dry powder, dries；
(3) alloyage powder, the alloying powder include: C:0.11~0.13wt.%, and Si:1.05~
2.25wt.%, Cr:14.35~16.20wt.%, Mn:1.25~1.60wt.%, Ni:1.35~1.50wt.%, Co:2.65
The Fe of~2.80wt.%, TiO2:4.25%~5.60wt.% and surplus；
(4) by the way of preset powdering, prepared alloying powder is uniformly sprayed at by base by electrostatic duster
Material liner plate working surface；
(5) substrate liner plate working surface is subjected to laser alloying, obtains laser alloying rolling mill lining plate.
The present invention does not have particular/special requirement, medium carbon low alloy steel plate well known to those skilled in the art to substrate liner plate
As substrate liner plate, such as 45 steel, 40Cr, 42CrMo, 35CrMo etc..
It is currently preferred that medium carbon low alloy steel plate is added by liner plate drawing before carrying out the laser alloying
Work reduces 0.2mm by thickness to the working surface of liner plate contact movement component and completes processing.In the present invention, by going
It except the method for 0.2mm substrate, is realized for next step laser alloying and increases material 0.2mm, but increased material is hard with high abrasion, height
The alloying layer of the excellent properties such as degree extends so that rolling mill lining plate obtains high-performance in the case where not changing original size
Service life.
In the present invention, the cleaning agent that the cleaning uses is preferably industrial alcohol, implementation of the present invention to the cleaning
Mode does not have particular/special requirement, using cleaning way well known to those skilled in the art.Cleaning treatment of the present invention can
The impurity such as the oxide skin of liner plate working surface, greasy dirt are removed.In the present invention, the degreasing agent that the ungrease treatment uses is preferred
For organic solvent or inorganic degreaser.The present invention does not have special want to the specific type of the organic solvent and inorganic degreaser
It asks, using organic solvent well known to those skilled in the art and degreasing agent.Specific reality of the present invention to the ungrease treatment
The mode of applying does not have particular/special requirement, using degreasing mode well known to those skilled in the art.Cleaning and degreasing of the present invention
Processing can remove the impurity such as the greasy dirt of liner plate working surface.
After cleaning and ungrease treatment, before the laser alloying, filled in each counter sink of liner plate working surface
It with good fast dry powder, dries, guarantees not destroy counter sink when laser alloying.These counter sinks are for fixing rolling mill lining plate
It is very high to form accuracy requirement in mill housing, to prevent from changing countersunk head pore size in laser alloying process in the present invention,
The mode for filling fast dry powder is first passed through in advance, avoids the conjunction that laser scanning may will become scattered about in counter sink in laser alloying process
Aurification powder is fused on counter sink inner wall, to change the form accuracy in hole.
In the present invention, the partial size of the alloying powder is preferably 135~325 mesh.The present invention controls alloying powder end
Ingredient in above range, fully considered the wetability and compatibility with medium carbon low alloy steel substrate, avoided alloying mistake
Appearance in journey the defects of crackle.
In the present invention, it is preferred to, the laser scanning power of the laser alloying is 3800~4000W, scanning speed
For 1200~1500mm/min, the overlapping rate of laser alloying is 10~20%.The present invention is to the size of laser facula without spy
It is different to require, using spot size well known to those skilled in the art, by the constraint of laser equipment used in the present invention, in this hair
In bright specific embodiment, the laser facula is the rectangular light spot of 2 × 14mm.The present invention is led to by the way of preset powdering
It crosses electrostatic duster and alloying powder is uniformly sprayed to liner plate working surface, preset powder layer thickness is 0.6~0.8mm, laser
Alloying layer with a thickness of 0.4~0.6mm, laser alloying coating is carried out non-destructive testing, is examined by surface dye penetrant inspection
The defects of surveying, checking whether there is crackle.It is also preferable to include the rolling mill lining plate surface laser alloys to non-destructive testing qualification by the present invention
Layer carries out grinding, is finished by surface grinding machine, and stock removal is 0.2~0.4mm, obtains size and surface smoothness
Meet the milling train liner plate of drawing requirement.
The present invention will now be described in detail with reference to examples:
Embodiment 1
Alloyage powder, the alloying powder include: C:0.11wt.%, Si:1.05wt.%, Cr:
The Fe of 14.35wt.%, Mn:1.25wt.%, Ni:1.35wt.%, Co:2.65wt.%, TiO2:4.25%wt and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.6mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 3800W, scanning speed 1200mm/min, and overlapping rate is
10%, the laser alloying coating of acquisition with a thickness of 0.4mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.2mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC62.
Embodiment 2
Alloyage powder, the alloying powder include: C:0.13wt.%, Si:2.25wt.%, Cr:
The Fe of 16.20wt.%, Mn:1.60wt.%, Ni:1.50wt.%, Co:2.80wt.%, TiO2:5.60wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.8mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 4000W, scanning speed 1500mm/min, and overlapping rate is
20%, the laser alloying coating of acquisition with a thickness of 0.6mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.4mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC61.
Embodiment 3
Alloyage powder, the alloying powder include: C:0.13wt.%, Si:1.55wt.%, Cr:
The Fe of 15.35wt.%, Mn:1.35wt.%, Ni:1.35wt.%, Co:2.65wt.%, TiO2:4.55wt% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.6mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 3900W, scanning speed 1300mm/min, and overlapping rate is
10%, the laser alloying coating of acquisition with a thickness of 0.4mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.2mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC63.
Embodiment 4
Alloyage powder, the alloying powder include: C:0.12wt.%, Si:1.65wt.%, Cr:
The Fe of 15.35wt.%, Mn:1.45wt.%, Ni:1.45wt.%, Co:2.75wt.%, TiO2:5.25wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.7mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 4000W, scanning speed 1500mm/min, and overlapping rate is
20%, the laser alloying coating of acquisition with a thickness of 0.5mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.3mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC63.
Embodiment 5
Alloyage powder, the alloying powder include: C:0.12wt.%, Si:1.85wt.%, Cr:
The Fe of 16.20wt.%, Mn:1.55wt.%, Ni:1.50wt.%, Co:2.75wt.%, TiO2:5.45wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.6mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 3800W, scanning speed 1400mm/min, and overlapping rate is
20%, the laser alloying coating of acquisition with a thickness of 0.4mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.2mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC61.
Embodiment 6
Alloyage powder, the alloying powder include: C:0.12wt.%, Si:2.15wt.%, Cr:
The Fe of 14.85wt.%, Mn:1.55wt.%, Ni:1.35wt.%, Co:2.65wt.%, TiO2:5.10wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.8mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 3950W, scanning speed 1400mm/min, and overlapping rate is
20%, the laser alloying coating of acquisition with a thickness of 0.6mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.4mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC63.
Embodiment 7
Alloyage powder, the alloying powder include: C:0.13wt.%, Si:2.15wt.%, Cr:
The Fe of 15.20wt.%, Mn:1.45wt.%, Ni:1.45wt.%, Co:2.65wt.%, TiO2:5.30wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.6mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 3800W, scanning speed 1250mm/min, and overlapping rate is
20%, the laser alloying coating of acquisition with a thickness of 0.4mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.2mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC62.
Embodiment 8
Alloyage powder, the alloying powder include: C:0.13wt.%, Si:1.05~2.25wt.%, Cr:
The Fe of 16.20wt.%, Mn:1.50wt.%, Ni:1.50wt.%, Co:2.65wt.%, TiO2:4.60wt.% and surplus are closed
The partial size of aurification powder is 135~325 mesh；45 steel boards are processed by liner plate drawing, to liner plate contact movement component
Working surface reduces 0.2mm by thickness and completes processing；Cleaning and degreasing are successively carried out to the liner plate working surface processed
Processing；It fills and good fast dry powder, dries in each counter sink of liner plate working surface；By the way of preset powdering, pass through
Alloying powder is uniformly sprayed at liner plate working surface by electrostatic duster, and preset powder layer thickness is 0.7mm；Carry out laser alloy
Change, laser spot size is 2 × 14mm, laser scanning power 4000W, scanning speed 1500mm/min, and overlapping rate is
10%, the laser alloying coating of acquisition with a thickness of 0.5mm；Lossless inspection is carried out by surface dye penetrant inspection to laser alloying coating
The defects of surveying, checking whether there is crackle；Grinding is carried out to laser alloy-layer, is finished by surface grinding machine, is ground
Amount is 0.3mm, obtains size and surface smoothness meets the milling train laser alloying liner plate of drawing requirement.
The rolling mill lining plate that in the present embodiment prepared by laser alloying, the hardness of alloying layer reach HRC62.
For the above various embodiments after laser alloying preparation, rolling mill lining plate surface does not occur cracking situation, and obtain
Alloying layer surface quality is high, does not have the appearance of the defects of stomata, trachoma, crackle, obtained alloying liner plate hardness, wearability is good
It is good, significantly improve service life.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of preparation method of laser alloying rolling mill lining plate, which comprises the steps of:
(1) cleaning and ungrease treatment are carried out to the substrate liner plate working surface processed；
(2) it fills in each counter sink of substrate liner plate working surface and good fast dry powder, dries；
(3) alloyage powder, the alloying powder include: C:0.11~0.13wt.%, and Si:1.05~
2.25wt.%, Cr:14.35~16.20wt.%, Mn:1.25~1.60wt.%, Ni:1.35~1.50wt.%, Co:2.65
The Fe of~2.80wt.%, TiO2:4.25%~5.60wt.% and surplus；
(4) by the way of preset powdering, prepared alloying powder is uniformly sprayed at by substrate lining by electrostatic duster
Plate working surface；
(5) substrate liner plate working surface is subjected to laser alloying, obtains laser alloying rolling mill lining plate.
2. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the substrate liner plate
For medium carbon low alloy steel liner plate.
3. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the alloyed powder
The partial size at end is 135~325 mesh.
4. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the laser alloy
The laser scanning power of change is 3800~4000W, and scanning speed is 1000~1200mm/min.
5. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the laser alloy
The overlapping rate of change is 10~20%.
6. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the laser alloy
The size of the laser facula of change is 2 × 14mm.
7. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the preset bisque
With a thickness of 0.6~0.8mm.
8. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the laser alloy
Change layer with a thickness of 0.4~0.6mm.
9. the preparation method of laser alloying rolling mill lining plate according to claim 1, which is characterized in that the preparation method
Further include: laser alloying coating is carried out non-destructive testing by surface dye penetrant inspection after laser alloying, and to laser alloy
Layer carries out grinding.
10. a kind of laser alloying rolling mill lining plate, which is characterized in that prepared by any preparation method of claim 1~9
It obtains.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344310B1 (en) * | 1986-12-15 | 1994-03-09 | Kabushiki Kaisha Komatsu Seisakusho | Laser padding material and method for laser padding using same |
| 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 |
| CN107779859B (en) * | 2017-10-24 | 2019-06-25 | 燕山大学 | A kind of preparation method of milling train liner plate |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344310B1 (en) * | 1986-12-15 | 1994-03-09 | Kabushiki Kaisha Komatsu Seisakusho | Laser padding material and method for laser padding using same |
| CN107779859B (en) * | 2017-10-24 | 2019-06-25 | 燕山大学 | A kind of preparation method of milling train liner plate |
| 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 |
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