CN106591831A - Self-lubricating wear-resisting coating for laser manufacturing hot rolled strip curling front guide ruler liner plate - Google Patents
Self-lubricating wear-resisting coating for laser manufacturing hot rolled strip curling front guide ruler liner plate Download PDFInfo
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- CN106591831A CN106591831A CN201611240918.9A CN201611240918A CN106591831A CN 106591831 A CN106591831 A CN 106591831A CN 201611240918 A CN201611240918 A CN 201611240918A CN 106591831 A CN106591831 A CN 106591831A
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- self
- liner plate
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- wear
- lubricating
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Classifications
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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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- 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
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
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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)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a self-lubricating wear-resisting coating for a laser manufacturing hot rolled strip curling front guide ruler liner plate. The self-lubricating wear-resisting coating is characterized in that alloy powder of the laser cladding self-lubricating wear-resisting coating comprises Cr, Co and Si and is characterized by further comprising N, Nb, W and B, wherein the alloy powder includes, by mass percent, 8%-18% of Cr, 5%-10% of Co, 0.1%-0.5% of Si, 0.3%-0.5% of N, 0.1%-0.5% of Nb, 8%-16% of W, 8%-12% of B and the balance Ni. Due to optimal design of technology parameters of laser cladding and the ratio of all element components in the powder material, the high-temperature-wear-resistance hardness of the hot rolled strip curling front guide ruler liner plate obtained after cladding completely conforms to the design index, and in addition, the service life is greatly prolonged and is prolonged by at least 6 times.
Description
Technical field
It is more particularly to a kind of with High-temperature-resandant andant wear-resistant the present invention relates to a kind of self-lubricating coat in use for jig liner plate
The alloy powder of the self-lubricating wear-resistant coating of leading chi liner plate laser manufacture is crimped for hot-strip, belongs to International Classification of Patents
C23C24/10 (2006.01) I technical fields in table.
Background technology
Jig liner plate is the visual plant of hot rolling line, and particularly jig liner plate is even more before hot-rolled strip production line curling
There is core influence to the last roll of coil of strip, it may be said that be one of most important equipment of impact product qualified rate.In recent years,
With increasingly sharpening that hot-rolled coil is competed, scroll has become an important Con trolling index in production process.Jig is served as a contrast
Plate forms important influence to coil of strip as the visual plant on Hot Line.In actual production process, due to curling
Waster that technology accident and defect of coil shape are caused, treat that whole product are more, cause unnecessary cost and waste.And due to leading
The strong high-temperature mechanical wear operating mode of chi liner plate causes its surface to change in time when reaching certain wear extent, and leads at present
The situation that commonly uses of chi liner plate is that wearability is poor, is changed very frequently, and this undoubtedly increased production cost；And one piece of jig
Liner plate weight can reach 120-150kg, and operating personnel just must can complete to change by driving, so not only take time and effort,
Maintenance and operating rate can also be affected.Therefore, select appropriate jig liner plate manufacture method and use material, improve web qualities,
Avoid cost from wasting, the service life of jig liner plate is greatly improved on the premise of strip roll is ensured, be current urgently to be resolved hurrily
Problem.
The strip edge sidepiece whole process that jig liner plate passes through in practical work process with high speed is contacted, can be in strip from height
A large amount of frictional heats simultaneously are produced in the case of temperature so that the temperature rise at military service position increases severely suddenly, failure is characterized as high temperature strength machinery
State of wear.Due to working under 650～720 DEG C of high temperature（Consider that frictional work intensification factor temperature can be higher）, strip is by speed
Degree is up to 18m/s, and high temperature, high velocity environment can cause jig liner plate military service position inevitably to be worn and torn, and wear extent is logical
Chang Feichang depths.Jig liner plate once there is deeper abrasion groove, by destruction made by the dynamic balancing that can directly result in strip operation
Into mechanical oscillation, scroll quality is affected, even quality accident can be caused when serious.Therefore the material of jig liner plate must possess as
Under performance characteristic：High temperature wear resistant, resistance to high temperature oxidation and preferably have good Wear vesistance concurrently.
In recent years, laser melting and coating technique is used as a kind of advanced manufacturing technology, using the high spy of laser beam focused energy
Point, moment by with specific physical, chemistry or mechanical property alloyed powder（It is preset in substrate surface or send automatically with laser synchronization
Put）It is completely melt, while base material part fusing, forms a kind of new compound material, rapid solidification after laser beam flying is obtained
With the fine and close cladding layer of matrix metallurgical binding, to reach specific enhancement purpose.
What is selected during fabrication due to jig liner plate is high temperature wear resistant alloy material, and the high temperature red hardness of material is high, material
Solderability is very poor, and conventional restorative procedure is built-up welding, and the material of selection is generally common wear resistance electrode, but these materials make
All once went wrong with during, such as easy to crack, slag inclusion is more, easy sealing-off.Laser melting coating mode then can be very good to solve
Problem above, but laser melting coating is equally also required to corresponding appropriate alloy material, is particularly adapted under the conditions of the special operation condition
High temperature wear resistant alloy material.Due to not having corresponding material, institute in the field of laser cladding currently for the material
To develop through special research and development discussion, by the wear mechanism system for analyzing jig liner plate, a kind of high temperature wear resistant is developed
Laser composite self-lubricating material just into the task of top priority.From unlike conventional high temperature wear resistant material, the present invention is being solved
On the basis of the wear-resisting problem of tradition, special component is combined in tissue further by way of laser melting coating is quickly cooled down
Alloying element, reduces the coefficient of friction of contact interface on the basis of wear-resisting, that is, anti-attrition effect is played, subsequently by theory analysis
A kind of self-lubricating abrasion-resistant powder for being exclusively used in hot-strip jig liner plate has been invented in demonstration and a series of test.
The content of the invention
It is an object of the invention to solve the problems referred to above of prior art presence, there is provided one kind has high temperature wear resistant, resists
High-temperature oxydation and the self-lubricating abrasion-resistant for manufacturing the leading chi liner plate of hot-strip curling for laser with outstanding self-lubricating function
Coating.The present invention manufactures hot-strip jig liner plate using the method for laser melting coating, and increases substantially its service life.Should be certainly
Lubricating and wear-resisting coating is that addition boride material is combined in high temperature oxidation resisting lost material matrix by laser combination process mode
Material, to the self-lubricating property for improving cladding region, and by appropriate laser melting and coating process and Technology for Heating Processing means,
So that boride particle even dispersion is distributed in high temperature oxidation resisting abrasion laser cladding of material organization internal, fault formula is shown
Spatial organization's structure, this alloy substrate schedule of reinforcement causes the powder with higher high temperature hardness, high temperature oxidation resistance
While energy, and with good self-lubricating property --- i.e. while high temperature oxidation resisting weares and teares, rubbing for system is reduced again
Coefficient is wiped, and then reduces frictional work and heated up to the negative consequence produced by jig liner plate.And due to its matrix material toughness compared with
Good, crack tendence is minimum under appropriate laser melting and coating process.
The technical scheme that the present invention is given is：It is this to manufacture the self-lubricating that hot-strip crimps leading chi liner plate for laser
Wear-resistant coating, it is characterised in that the composition of the alloy powder of laser melting coating self-lubricating wear-resistant coating includes Cr, Co, Si, it is special
Point is also to include N, Nb, W, B, wherein each component（Mass percent）For.
Cr：8~18%；Co：5~10%；Si:0.1~0.5%；N：0.3~0.5%.
Nb：0.1~0.5%；W：8~16%；B；8~12%；Ni：Surplus.
The present invention is combined addition boride in high temperature oxidation resisting wear against tissue and then improves material by laser mode
Self-lubricating property；By selecting alloy substrate intensified element, crystal grain refinement boundary-strengthening element, the percentage of each group element is controlled
Content, makes alloy powder obtain superior combination property, it is achieved thereby that alloy is with higher high temperature hardness, high temperature resistance oxygen
While changing performance, with good self-lubricating property, wear resistance at elevated temperature is on the one hand maintained, on the other hand can be reduced again
Coefficient of friction, so as to weaken consumption of the strength abrasion to plant equipment, and forms the metallurgical junction of densification with jig liner plate base material
Layer is closed, the use requirement of laser melting coating jig liner plate is met.
The self-lubrication alloy powder for the leading chi liner plate laser manufacture of hot-strip curling that the present invention is given is to pass through
Prepared by the operations such as vacuum melting, vacuum aerosolization, screening, granularity is -100+270 mesh.
The self-lubrication alloy powder for crimping leading chi liner plate laser manufacture for hot-strip that the present invention is given, it is adaptable to
Full solid-state solid laser, be in the melting and coating process parameter using the dusty material：Power：700 ~ 1800W, spot diameter：
1.8 ~ 3.2mm, sweep speed：15 ~ 50mm/s, puts powder thickness：0.3~0.6mm.
Compared with prior art, the invention has the beneficial effects as follows.
1. the degree of each element is adjusted, and due to corresponding matrix strengthening element, the addition of grain refining element
Alloy substrate is enhanced, while and improve grain boundary quality, the alloy structure good so as to obtain combination property.Such case
Under alloy while with height, intensity and toughness, also have good self-lubricating property concurrently, that is to say, that filling
While the existing high temperature oxidation resisting of split weares and teares, the coefficient of friction of its friction subsystem reduces, it is believed that from interface wear model
Angle improves the bad working environments condition of jig liner plate high-temperature oxydation abrasion, and then improves the anti-height of laser melting coating jig liner plate
Warm oxidative wear performance, process stabilizing and composition are uniform, have ensured the service life of product.
2., by the boride components of the larger mass fraction ratio of addition, moistening certainly after the alloy powder laser melting coating is improved
Slip energy, reduces the coefficient of friction of system, it is ensured that do not continue friction liter under the applying working condition of jig liner plate in cladding region
Temperature, so as to the negative consequence of military service region temperature arrising caused by friction is greatly reduced, and then improves the whole service life of product.
Specific embodiment
Embodiment 1.
In use, average 20 hours just because high temperature wear is excessive for the jig liner plate of the hot rolling line of Nanjing steel mill
Cause jig liner plate to fail, can not realize steel plate cans, it is necessary to manually operated driving to be changed.
Carried out after laser melting coating manufacture using application process of the present invention, wherein laser melting coating parameter is：Power：1200W, light
Spot diameter：1.8mm, sweep speed：25mm/s, puts powder thickness： 0.5mm.The use of granularity is the use that the present invention of 150 mesh is given
The self-lubrication alloy powder for crimping leading chi liner plate laser manufacture in hot-strip carries out cladding, its component（Mass percent）
For：Cr：13.8%；Co:7.5%；Si:0.35%；N：0.4%；Nb：0.3%；W：10%；B:8.5%；Ni：Surplus.
Recover the size and precision of original design requirement after appropriate melting and coating process design.Upper machine is under actual condition
It is on active service, use time is to after 130 hours（Original service condition is 20 hours）, still can also use online.Namely prove
The high temperature wear resistant hardness of the material complies fully with design objective, and service life, is increased substantially, and at least improves
More than 6 times.
Embodiment 2.
In use, use time is only 8 hours to Hebei steel mill jig liner plate, and wearing depth is more than 6mm, sternly
The operating efficiency of production line is have impact on again.
Laser melting coating is carried out using the material.Laser melting coating parameter is " power：1500W, spot diameter：1.8mm, scanning
Speed：30mm/s, puts powder thickness： 0.5mm." the use of granularity is that the 230 purposes powder carries out cladding, composition is：Cr：13.5%；
Co：8.6%；Si: 0.35%；N：0.45%；Nb： 0.36%；W：12%；B；11%；Ni：Surplus.
Recover original size and precision after appropriate laser melting coating design, reach design requirement.It is assembled into Hot Line
On carry out test of reaching the standard grade, test result is only to have reached within 8 hours 50 hours by original use time, and service life brings up to 6
More than times, far beyond design objective.
Claims (3)
1. it is a kind of to manufacture the self-lubricating wear-resistant coating that hot-strip crimps leading chi liner plate for laser, it is characterised in that laser melts
The alloy powder composition for covering self-lubricating wear-resistant coating includes Cr, Co, Si, is characterized in also including N, Nb, W, B, wherein respectively
Component（Mass percent）For：
Cr：8~18%；Co：5~10%；Si:0.1~0.5%；N：0.3~0.5%；
Nb：0.1~0.5%；W：8~16%；B；8~12%；Ni：Surplus.
2. a kind of self-lubricating abrasion-resistant for manufacturing the leading chi liner plate of hot-strip curling for laser according to claim 1 is applied
Layer, it is characterised in that the alloy powder composition of laser melting coating self-lubricating wear-resistant coating（Mass percent）For：
Cr：13.8%；Co:7.5%；Si:0.35%；N：0.4%；Nb：0.3%；W：10%；B:8.5%；Ni：Surplus.
3. a kind of self-lubricating abrasion-resistant for manufacturing the leading chi liner plate of hot-strip curling for laser according to claim 1 is applied
Layer, it is characterised in that the alloy powder composition of laser melting coating self-lubricating wear-resistant coating（Mass percent）For：
Cr：13.5%；Co：8.6%；Si: 0.35%；N：0.45%；Nb： 0.36%；W：12%；B；11%；Ni：Surplus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611240918.9A CN106591831A (en) | 2016-12-29 | 2016-12-29 | Self-lubricating wear-resisting coating for laser manufacturing hot rolled strip curling front guide ruler liner plate |
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| CN201611240918.9A CN106591831A (en) | 2016-12-29 | 2016-12-29 | Self-lubricating wear-resisting coating for laser manufacturing hot rolled strip curling front guide ruler liner plate |
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| CN201611240918.9A Pending CN106591831A (en) | 2016-12-29 | 2016-12-29 | Self-lubricating wear-resisting coating for laser manufacturing hot rolled strip curling front guide ruler liner plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779859A (en) * | 2017-10-24 | 2018-03-09 | 燕山大学 | A kind of preparation method of milling train liner plate |
| CN109868468A (en) * | 2019-03-13 | 2019-06-11 | 沈阳大陆激光工程技术有限公司 | A kind of function-graded material in the case of the high temperature high speed abrasive wear for hot continuous rolling production line |
| CN110527869A (en) * | 2019-09-30 | 2019-12-03 | 沈阳大陆激光工程技术有限公司 | A kind of the self-lubricating abrasion-resistant phase material and its preparation process of laser manufacture guide ruler liner plate |
| CN110670064A (en) * | 2019-09-30 | 2020-01-10 | 沈阳大陆激光工程技术有限公司 | Wear-resistant and wear-reducing biphase symbiotic material for manufacturing side guide plate by laser and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779859A (en) * | 2017-10-24 | 2018-03-09 | 燕山大学 | A kind of preparation method of milling train liner plate |
| CN107779859B (en) * | 2017-10-24 | 2019-06-25 | 燕山大学 | A kind of preparation method of milling train liner plate |
| CN109868468A (en) * | 2019-03-13 | 2019-06-11 | 沈阳大陆激光工程技术有限公司 | A kind of function-graded material in the case of the high temperature high speed abrasive wear for hot continuous rolling production line |
| CN110527869A (en) * | 2019-09-30 | 2019-12-03 | 沈阳大陆激光工程技术有限公司 | A kind of the self-lubricating abrasion-resistant phase material and its preparation process of laser manufacture guide ruler liner plate |
| CN110670064A (en) * | 2019-09-30 | 2020-01-10 | 沈阳大陆激光工程技术有限公司 | Wear-resistant and wear-reducing biphase symbiotic material for manufacturing side guide plate by laser and manufacturing method thereof |
| CN110527869B (en) * | 2019-09-30 | 2021-06-15 | 沈阳大陆激光工程技术有限公司 | Self-lubricating wear-resistant phase material for laser-manufactured guide ruler lining plate and preparation process thereof |
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