CN110527869A - A kind of the self-lubricating abrasion-resistant phase material and its preparation process of laser manufacture guide ruler liner plate - Google Patents
A kind of the self-lubricating abrasion-resistant phase material and its preparation process of laser manufacture guide ruler liner plate Download PDFInfo
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- CN110527869A CN110527869A CN201910937873.8A CN201910937873A CN110527869A CN 110527869 A CN110527869 A CN 110527869A CN 201910937873 A CN201910937873 A CN 201910937873A CN 110527869 A CN110527869 A CN 110527869A
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- liner plate
- phase material
- lubricating abrasion
- guide ruler
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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
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
-
- 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
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
-
- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
Abstract
A kind of self-lubricating abrasion-resistant phase material of laser manufacture guide ruler liner plate of the present invention, is made of: Cu:5 ~ 20% by weight percent following components；Si:1 ~ 5%；Cr:8~20%；WS2: 5 ~ 18%；B:6 ~ 12%；Ni: surplus.The present invention reduces frictional heat generation effect by considering, using high thermal conductivity substrate, and the coefficient of friction in friction accessory body system is further decreased by testing a kind of self-lubricating abrasion-resistant phase material that a kind of thermal expansion coefficient found is consistent with basis material, to reduce the generation of frictional heat in bigger meaning.
Description
Technical field
The present invention relates to the design of material that manufacture hot-strip batches leading ruler liner plate, use laser more particularly to a kind of
The mode of cladding manufactures hot-strip and batches implantation self-lubricating abrasion-resistant phase material in the high thermal conductivity matrix of leading ruler liner plate, belongs to
C23C24/10 (2006.01) I technical field in IPC International Patent Classification (IPC).
Background technique
With the increasingly fierceness of steel industry competition, the high standard scroll of coiled material requires index already to become the conjunction of coil of strip finished product
The important indicator of lattice rate, and guide ruler liner plate is the important equipment of hot rolling line, especially hot-rolled strip production line curling is leading
Ruler liner plate be even more have core influence to the last roll of coil of strip, it may be said that be influence product qualified rate most important equipment it
One.
The material that the guide ruler liner plate generally used in actual production uses is build-up wear-resistant material, the mill of this build-up wear-resistant
Although damage performance is preferably, due to the special operation condition of guide ruler liner plate --- operating ambient temperature is higher, the strip that passes through at a high speed
Extruding etc. caused by bring frictional heat, powerful lateral pressure --- it will cause guide ruler liner plate and be seriously worn to lose
Original accurate clamp precision, and as the sharply acceleration of this case where losing clamp precision may can be to steel edge portion matter
Amount impacts, once the even generation of the accidents such as meeting piling of steel when serious --- so guide ruler wear liner is serious, just have to
Replacement in time.And frequently replace and not only waste manpower and material resources, the operating rate of whole hot rolling line is more affected, even
Due to the generation that will lead to production accident not in time of replacement.Therefore, selection is applied to the special material appropriate of guide ruler liner plate,
And then web qualities is improved, avoid cost from wasting, guide ruler liner plate is greatly improved under the premise of guaranteeing strip roll uses the longevity
Life, is the problem of industry is extremely paid close attention to.
The specific operating condition of guide ruler liner plate is not only to consider high temperature wear resistant under the working condition that strip high speed passes through,
Also to take into account influences in view of high-temperature oxydation and friction system acutely heat up etc., so design is suitable for leading from mechanism
Steep temperature rise situation of the guide ruler liner plate appeared in high-speed friction should be reduced as far as possible during ruler lining material, that is,
Enable substrate that should have higher thermal conductivity, and implantation can reduce the self-lubricating abrasion-resistant phase of coefficient of friction as far as possible.
Therefore, it for the Special use operating condition of guide ruler liner plate, designs and applies a kind of leading to height applied to guide ruler liner plate
In heating rate matrix be implanted into self-lubricating abrasion-resistant phase material, so that the service life of guide ruler liner plate is greatly improved, be this patent most
Important technology contents.
Summary of the invention
It is an object of the invention to realize that mentions in above content is implanted into self-lubricating abrasion-resistant phase into high thermal conductivity materials.
The difficult point of the invention is, since the operating condition of guide ruler liner plate can generate about 500-800 DEG C high temperature, while in the mechanical mill of high speed strength
During damage, since tribology principle can also generate a large amount of frictional heat, further high-temperature oxydation abrasion condition is caused to occur.
A key point of the invention is to solve a large amount of frictional heats to the influence in the secondary behavior that rubs, and reduces high-temperature oxydation abrasion condition
Occur.
However traditional pure metals are difficult have existing high thermal conductivity wear-resisting property with higher again, this just needs base
Material is a kind of reliable wear-resisting high thermal conductivity materials, while being implanted into self-lubricating abrasion-resistant phase into the highly heat-conductive material again
Grain --- in this way by the great negative consequence for weakening mechanical strength abrasion to friction secondary both sides, so that frictional heat greatly reduces.
Self-lubricating phase has good film forming ability, and firm chemisorbed film or physical absorption can be formed with friction surface
Film adheres on surface, prevents the mutual transfer for generating serious melting welding or metal between relative motion surface.And it is this from profit
The stability of sliding phase is good, including physics thermostabilization, chemical thermostabilization and aging stability, does not generate corrosion and other harmful effects
Physics thermostabilization refers to that in the presence of no active material, temperature changes the various change that will not cause phase transformation or lattice, therefore
It is not to cause the variation of shearing strength, the frictional behaviour of solid is caused to change.
During laser melting coating test repeatedly, it is resistance to that we have found a kind of self-lubricating for being suitable for the application of guide ruler liner plate
Grind phase WS2。WS2Especially suitable for the working condition of oil-free or few oil lubrication, and certain wearability can be kept at high temperature
Energy.It since its chemical property is more stable, can adapt to various extremely exacting terms, provide wear-resistant, anti-to greatest extent
Rust, anti-corrosion protection.But due to high temperature oxidation resisting abrasion and the thermal expansion coefficient and base of excellent high self-lubricating property material
Body materials variances is larger, this species diversity can generate very big tensile stress in metal solidification process at two-phase combination interface, this
Kind tensile stress can shake off the combination constraint of itself, and function and effect are far longer than the binding force between institutional framework, eventually make
Self-lubricating phase is mutually removed with matrix and causes to fall off, and microscopic findings, which are shown, a large amount of crackle occurs in metallographic structure
Source and even hole substantially reduce the service performance of cladding layer.It finally found that by repetition test and only use laser melting coating
Technique can just greatly reduce in tissue the case where cracking is removed, that is, determined it is a kind of applied to guide ruler liner plate to
It is implanted into self-lubricating abrasion-resistant phase material in high thermal conductivity matrix, homogeneous zero defect inside cladding layer may be implemented, cladding can be obtained
The second best in quality alloy structure, while service life is improved to 5-10 times of former guide ruler liner plate service life.
The technical solution that the present invention provides is: this to be implanted into self-lubricating into high thermal conductivity matrix applied to guide ruler liner plate
Wear-resisting phase material, main technical schemes are to pass through repetition test on the basis of original alloy material with high heat conductance
Research obtains technological parameter to self-lubricating abrasion-resistant phase WS in implantation high thermal conductivity alloy substrate2Effect tendency, after making cladding
The thermal expansion coefficient of the self-lubricating abrasion-resistant phase of the high thermal conductivity substrate and implantation of organization internal matches, and guarantees that metallurgical interface combines
Stability obtains the good Structure of Laser Cladding with certain design size thickness.It includes Cu, Si, Cr at being grouped as；
Its main feature is that further including having W, S, B, wherein laser cladding of material main component is Cu:5 ~ 20%；Si:1 ~ 5%；Cr:8~20%；
WS2: 5 ~ 18%；B:6 ~ 12%；Ni: surplus.Phase containing Cu undertakes the Metal Substrate effect with high thermal conductivity, the chemical combination containing W, S element
Object undertakes self-lubricating phase effect, i.e. anti-attrition phase separation.Furthermore needing to make must be noted that Cu element as being added in matrix
The important constituent element element added, main function are the thermal conductivitys that entire matrix is improved under the premise of matrix has certain wearability, such as
Fruit is lower than 5% additive amount, and the thermal conductivity of matrix will not improve substantially, if being higher than 20% additive amount, the entirety of matrix is wear-resisting
Property will receive negative influence.Meanwhile WS2Content control good laser cladding layer tissue can be obtained in 5 ~ 18% ranges,
If aliquation cracking situation can be will appear at the combination interface of cladding layer by being higher than 18%, and there are increased number of stomata on the surface of cladding layer
Defect cannot play the self-lubricating function of anti-attrition phase if being lower than 5% content.
The technological parameter of the involved laser melting coating used is substantially as follows:
Power: 800~1800W, spot diameter: 5~10mm sets powder thickness: 0.5~1.5mm, scanning speed: 20~50mm/s,
Overlapping rate: 25% ~ 75%.
Compared with prior art, the beneficial effects of the present invention are:
By considering to reduce frictional heat generation effect, high thermal conductivity substrate, and a kind of thermal expansion found by experiment are used
A kind of self-lubricating abrasion-resistant phase material that coefficient is consistent with basis material to further decrease friction accessory body system in friction system
Number, to reduce the generation of frictional heat in bigger meaning.It is that way can be such that high temperature friction and wear is transformed into be similar in this way
Room temperature fretting wear situation, or can be construed to not break through the high temperature resistant threshold value of material, there is no materials microstructure performance
It is further influenced by high temperature and ruckbildung occurs, thus can significantly promote the wear-resisting under the operating condition of material
Damage performance.
Specific embodiment
Embodiment 1
It is implanted into self-lubricating abrasion-resistant phase material on the Hot Line of Hebei into high thermal conductivity materials suitable for flipper guide.
Hot-strip crimps leading ruler liner plate, in the long service life laser fabrication process for carrying out guide ruler liner plate, carries out material ladder
Degree designs and carries out cladding using laser melting and coating process appropriate, has obtained cladding quality well and the multilayer without cracking defect
Cladding structure, wherein cladding material main component is Cu:16%；Si:4.2%；Cr:18%；WS2: 7.5%；B:6%；Ni: surplus.
Wherein the technological parameter of laser melting coating is as follows
Power: 1000W；Spot diameter: 7mm；Set powder thickness 0.6mm；Scanning speed: 38mm/s overlapping rate: 62%
The cladding material of the flipper guide is designed to be implanted into self-lubricating abrasion-resistant phase material into high thermal conductivity materials through laser melting coating
After carrying out laser melting coating, good cladding quality is not only obtained, it is most important that its service life, which is improved to original, to be made
With 15 times of the service life, cost is not only saved, and be to increase substantially production operational availability.
Embodiment 2
It is implanted into self-lubricating abrasion-resistant phase material on the Hot Line of Nanjing into high thermal conductivity materials suitable for flipper guide.
Laser contour cladding power: 1250W；Spot diameter: 3.9mm；Set powder thickness 0.8mm；Wherein prime coat cladding material
Material main component is Cu:20%；Si:3.5%；Cr:19.2%；WS2: 6.8%；B:9.8%；Ni: surplus.
Scanning speed: 41mm/s, overlapping rate: 60%；The material carries out being implanted into self-lubricating abrasion-resistant phase into high thermal conductivity materials
After material laser cladding, the second best in quality zero defect cladding tissue of cladding is obtained, the design size standard of guide ruler liner plate is reached
Meanwhile guide ruler liner plate service life being made to reach 10 times of original service life, greatly improving improves the working efficiency of production line simultaneously
Cost is saved.
Comparative example 1
It is implanted into self-lubricating abrasion-resistant phase material on the Hot Line of Hebei into high thermal conductivity materials suitable for flipper guide.
Hot-strip crimps leading ruler liner plate, in the long service life laser fabrication process for carrying out guide ruler liner plate, carries out material ladder
Degree designs and carries out cladding using laser melting and coating process appropriate, has obtained cladding quality well and the multilayer without cracking defect
Cladding structure, wherein cladding material main component is Cu:24%；Si:4.2%；Cr:18%；WS2: 7.5%；B:6%；Ni: surplus.
Wherein the technological parameter of laser melting coating is as follows
Power: 1000W；Spot diameter: 7mm；Set powder thickness 0.6mm；Scanning speed: 38mm/s overlapping rate: 62%
The cladding material of the flipper guide is designed to be implanted into self-lubricating abrasion-resistant phase material into high thermal conductivity materials through laser melting coating
After carrying out laser melting coating, service life is improved to 1.5 times of original service life, compared with Example 1, service life
It improves less.
Comparative example 2
It is implanted into self-lubricating abrasion-resistant phase material on the Hot Line of Hebei into high thermal conductivity materials suitable for flipper guide.
Hot-strip crimps leading ruler liner plate, in the long service life laser fabrication process for carrying out guide ruler liner plate, carries out material ladder
Degree designs and carries out cladding using laser melting and coating process appropriate, has obtained cladding quality well and the multilayer without cracking defect
Cladding structure, wherein cladding material main component is Cu:16%；Si:4.2%；Cr:18%；WS2: 21%；B:6%；Ni: surplus.
Wherein the technological parameter of laser melting coating is as follows
Power: 1000W；Spot diameter: 7mm；Set powder thickness 0.6mm；Scanning speed: 38mm/s overlapping rate: 62%
The cladding material of the flipper guide is designed to be implanted into self-lubricating abrasion-resistant phase material into high thermal conductivity materials through laser melting coating
After carrying out laser melting coating, service life is improved to 3 times of original service life, and compared with Example 1, service life mentions
It is high less.
Claims (4)
1. a kind of self-lubricating abrasion-resistant phase material of laser manufacture guide ruler liner plate, which is characterized in that press quality percentage by following components
Array is at Cu:5 ~ 20%；Si:1 ~ 5%；Cr:8~20%；WS2: 5 ~ 18%；B:6 ~ 12%；Ni: surplus.
2. a kind of method of laser manufacture guide ruler liner plate, which is characterized in that laser melting coating parameter is as follows: power: 800~1800W,
Spot diameter: 5~10mm sets powder thickness: 0.5~1.5mm, scanning speed: 20~50mm/s, overlapping rate: 25% ~ 75%.
3. self-lubricating abrasion-resistant phase material according to claim 1, which is characterized in that by following components group by weight percent
At: Cu:16%；Si:4.2%；Cr:18%；WS2: 7.5%；B:6%；Ni: surplus.
4. self-lubricating abrasion-resistant phase material according to claim 1, which is characterized in that by following components group by weight percent
At: Cu:20%；Si:3.5%；Cr:19.2%；WS2: 6.8%；B:9.8%；Ni: surplus.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308690A (en) * | 2021-04-30 | 2021-08-27 | 苏州朋众新材料科技有限公司 | Self-lubricating wear-resistant coating for engine bearing bush and preparation method thereof |
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| CN113308690A (en) * | 2021-04-30 | 2021-08-27 | 苏州朋众新材料科技有限公司 | Self-lubricating wear-resistant coating for engine bearing bush and preparation method thereof |
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| CN110527869B (en) | 2021-06-15 |
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