CN109701251A - Skates and ice skates - Google Patents
Skates and ice skates Download PDFInfo
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- CN109701251A CN109701251A CN201811407417.4A CN201811407417A CN109701251A CN 109701251 A CN109701251 A CN 109701251A CN 201811407417 A CN201811407417 A CN 201811407417A CN 109701251 A CN109701251 A CN 109701251A
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Abstract
The invention discloses a kind of skates, including cutter hub and blade, the material of at least described blade includes graphene steel composite material, and the graphene steel composite material includes steel matrix and the graphene compound with the steel matrix.The invention also discloses a kind of ice skates, including shoe body and the skates.
Description
Technical field
The present invention relates to special tool(s) fields, more particularly to a kind of skates and ice skates.
Background technique
Ice-sports are the important components of winter sports, and the ice skates equipped with skates is that ice-sports are most important
Equipment.The precision of skates, performance, life and reliability play huge effect to skater, and skates steel
Performance and quality determine service performance and the service life of skates.
Current existing skates are mostly used carbon steel and stainless steel material is prepared, and are partially made of high-speed tool steel, tool
Body technique method is using alloy melting-rolling-machining technique.Current skates are in mechanical performance, such as frictional behaviour
Etc. need to be improved, if mechanical properties have breakthrough can be conducive to professional athlete sports achievement promoted need
It asks.
Summary of the invention
Based on this, it is necessary to provide a kind of skates of high-mechanical property.
A kind of skates, including cutter hub and blade, the material of at least described blade include graphene steel composite material, the stone
Black alkene steel composite material includes steel matrix and the graphene compound with the steel matrix.
At least described blade is to obtain after the graphene steel composite material is rolled and polished in one of the embodiments,
Arrive, the graphene steel composite material by the way that graphene powder and steel powder are prepared by hot isostatic pressing after evenly mixing,
The temperature of the hot isostatic pressing is 920 DEG C~1300 DEG C.
The step of preparing the graphene steel composite material in one of the embodiments, include:
Mixed liquor is provided, the mixed liquor includes organic solvent, graphene powder and steel powder；
It is dried the mixed liquor to obtain mixed powder；
The mixed powder after the drying process is loaded into jacket and vacuumize degassing processing and will be described
Jacket sealing；
The sealing jacket for being mounted with the mixed powder is subjected to hip treatment, the temperature of the hot isostatic pressing is
920 DEG C~1300 DEG C, so that the mixed powder forms composite body；And
The composite body is separated with the jacket.
The step of preparing the graphene steel composite material in one of the embodiments, further include: at the drying
Reason step and it is described vacuumize between degassing processing step, to after the drying process the mixed powder carry out low temperature ball milling
The step of, the temperature of the low temperature ball milling is -80 DEG C~-160 DEG C.
The step of preparing the graphene steel composite material in one of the embodiments, further include: by the composite wood
Material base body is in 850 DEG C~1050 DEG C progress isothermal die forging process.
At least described blade is after the graphene steel composite material is carried out the rolling in one of the embodiments,
It is quenched and is tempered, obtained after then carrying out the polishing, the hardening heat is 900 DEG C~1250 DEG C, the tempering temperature
Degree is 180 DEG C~600 DEG C.
Mass fraction of the graphene in the graphene steel composite material is in one of the embodiments,
0.01%~2%.
The steel matrix includes ferro element, non-graphite carbon and other alloys member in one of the embodiments,
Element, mass fraction of the non-graphite carbon in the graphene steel composite material are 0.1%~1.5%.
Other described alloying elements include chromium in one of the embodiments, and the chromium is in the graphene
Mass fraction in steel composite material is 1.75%~5.5%.
Other described alloying elements include molybdenum element in one of the embodiments, and the molybdenum element is in the graphene
Mass fraction in steel composite material is 4.5%~5.5%.
The coefficient of friction of the blade is 0.3~0.4 in one of the embodiments,.
The bending strength of the blade is 4000MPa~5500MPa in one of the embodiments,.
The hardness of the blade is 65HRC~75HRC in one of the embodiments,.
The impact flexibility of the blade is 80J/cm in one of the embodiments,2~100J/cm2。
A kind of ice skates, including shoe body and the skates.
Two-dimension nano materials graphene and steel are combined and form graphene steel composite material, the uniqueness of graphene by the present invention
Bi-dimensional cellular crystal structure and high bond strength, in conjunction with Steel material, make composite material have superelevation bending strength, hardness
And impact flexibility, solve that the easy to wear of skates made of existing stainless steel or carbon steel, intensity are low, shock resistance is poor asks
Topic, the skates with high-mechanical property make ice skates have higher movenent performance.Skates of the invention have lower
Frictional resistance makes the coefficient of friction of existing skates reduce by 10% or more, thus for skater, it can get skating faster
The service life of speed, skates is also longer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples to the present invention
Skates and ice skates be further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of skates, including cutter hub and blade, and the material of at least described blade includes graphene
Steel composite material, the graphene steel composite material include graphene and steel matrix.
Two-dimension nano materials graphene and steel are combined and form graphene steel composite material, graphene by the embodiment of the present invention
Unique bi-dimensional cellular crystal structure and high bond strength, in conjunction with Steel material, make composite material have super high bending strength
Degree, hardness and impact flexibility, solve that the easy to wear of skates made of existing stainless steel or carbon steel, intensity is low, impact resistance
The problem of energy difference, the skates make ice skates have higher movenent performance.The skates of the embodiment of the present invention have lower rub
Resistance is wiped, the coefficient of friction of existing skates is made to reduce by 10% or more, thus for skater, it can get skating speed faster
Degree, the service life of skates are also longer.
In one embodiment, at least described blade is to obtain after the graphene steel composite material is rolled and polished, institute
Graphene steel composite material is stated by preparing graphene powder and steel powder by hot isostatic pressing after evenly mixing, the heat
The temperature of equal static pressure is 920 DEG C~1300 DEG C.Using the powder moulding process of hot isostatic pressing, the graphite densified completely
Alkene steel composite material is conducive to eliminate graphene steel composite material internal void and reduces internal defect, avoids excessive grain long
Greatly, to improve the mechanical performance of graphene steel composite material blade.Powder molding is realized by the method for hot isostatic pressing, is simplified
Processing step, and advantageously reduce the degree of oxidation of steel powder and graphene during multi-step process.
In one embodiment, the skates generally by graphene steel composite material roll and polish formation have cutter hub
It is obtained with the integral structure of blade.In another embodiment, at least graphene steel composite material can be rolled and be polished formation
Blade, then obtained after the cutter hub of blade and other metal or alloy materials is welded or assembled.
In one embodiment, the step of preparing the graphene steel composite material may include:
S10, provides mixed liquor, and the mixed liquor includes organic solvent, graphene powder and steel powder；
S20 is dried the mixed liquor to obtain mixed powder；
The mixed powder after the drying process is loaded into jacket and vacuumize degassing processing and incite somebody to action by S30
The jacket sealing；
The sealing jacket for being mounted with the mixed powder is carried out hip treatment, the temperature of the hot isostatic pressing by S40
It is 920 DEG C~1300 DEG C, so that the mixed powder forms composite body；
S50 separates the composite body with the jacket.
It prepares to obtain graphite by the way that graphene powder and steel powder are carried out mechanical mixture, vacuum suction and hot isostatic pressing
Alkene steel composite material may make graphene uniform to be distributed in steel powder, eliminate component segregation.Pass through control hot isostatic pressing
Temperature realizes the firm connection of graphene powder and steel powder, so that graphene powder and steel powder at 920 DEG C~1300 DEG C
There is good combination interface between body, the graphene steel composite material with high-mechanical property is formed, to improve skates
Mechanical performance.
The coefficient of friction of the blade of the skates can be reduced to 0.3~0.4, and the bending strength of the blade can be
The hardness of 4000MPa~5500MPa, the blade can be 65HRC~75HRC, and the impact flexibility of the blade can be
80J/cm2~100J/cm2。
The steel matrix to account for the iron of 80% or more gross mass as basic element, and including non-graphite carbon and
Other alloying elements.Other described alloying elements may include one of Cr, Mo, W and V or a variety of, it is also preferable to include Mn and
One of Si or a variety of.
It is calculated with obtained graphene composite material to be overall, in the graphene composite material, the non-stone
The mass fraction of black class carbon can be 0.05%~2.0%, preferably 0.1%~1.5%；Other described alloying elements are excellent
The mass fraction of choosing can be with are as follows:
Cr:1.75%~5.5%；
Mo:4.5%~5.5%；
Mn:0.15%~0.4%；
Si:0.1%~0.45%；
W:5.5%~7.2%；
V:1.05%~5.75%.
The non-graphite carbon and the alloying element within the scope of above-mentioned mass fraction, can further with it is described
Graphene cooperation, enhances the mechanical performance of the skates jointly.
Mass fraction of the graphene in the graphene composite material can be 0.01%~2%.The graphite
Alkene is original graphene, i.e., not oxidized or linkage function group graphene, the number of plies of graphene can be 1~8 layer, preferably
, the number of plies of the graphene is 1~3 layer, and the number of plies of the graphene is fewer, the machinery of the graphene steel composite material of formation
Performance is better.Preferably, mass fraction of the graphene powder in the graphene composite material can for 0.05~
0.5%.
The partial size of the steel powder can be 20 μm~80 μm, and the piece diameter of the graphene powder can be 5 μm~50
μm, which is more advantageous to uniformly mixing between steel powder and graphene powder and mutually matched raising graphite
The mechanical performance of alkene steel composite material.
In one embodiment, the organic solvent can be volatile organic solvent, by by the graphene powder
Graphene powder is distributed in steel powder by mixed uniformly mode in volatile organic solvent with steel powder.
Preferably, not aqueous in the mixed liquor.By further evaporate the volatile organic solvent formed graphene powder and
The mixed powder of steel powder is used for processing graphite alkene steel composite material.Optionally, volatile organic solvent can be
The high volatile solvents such as ethyl alcohol, methanol, isopropanol.Preferably, the organic solvent is dehydrated alcohol.
In one embodiment, the step of providing the mixed liquor may include:
S12 mixes the graphene powder and the steel powder in drying regime；And
S14 mixes the mixed graphene powder with the steel powder with the organic solvent.
In step s 12, the steel powder can break for each group at the powder of element simple substance or by corresponding steel
The powder obtained after broken.The graphene powder and the steel powder can uniformly be mixed by the method for mechanical mixture.
Specifically, described the step of being mixed the graphene powder and the steel powder can be by the graphene powder
Mixed powder machine, which is loaded into, with the steel powder carries out the mixed powder of dry state under room temperature.The mixing time can be according to the Graphene powder
The partial size and type of body and the steel powder are determined.In one embodiment, the time of the mixed powder can for 1 hour~
8 hours.
In step S14, the graphene powder, the steel powder and the organic solvent can be formed by stirring
The mixed liquor.
, can be to heat to the mixed liquor the step of drying process in step S20, the heating
Temperature can be 25 DEG C~50 DEG C.In one embodiment, the step S20 and the step S14 can be carried out simultaneously, be passed through
The mixed liquor is heated in whipping process so that organic solvent volatilization, can simplify processing step.
Preferably, the step of drying process may include: to be stirred the mixed liquor at 40 DEG C~50 DEG C, directly
Slurry is formed to the removal part volatile organic solvent, the organic solvent in the mixed liquor of the slurry form
Mass percentage is preferably the 5%~20% of slurry total weight；And be dried in vacuo the slurry, all remove institute
State the organic solvent in slurry.It is partially dried by first carrying out, the rear substep drying process for carrying out vacuum and thoroughly drying, energy
The steel powder and graphene is enough avoided to be oxidized on surface in the heat drying process of prolonged aerobic environment, so that
The performance of steel powder and graphene is not destroyed.
In one embodiment, the vacuum drying temperature can be 80 DEG C~100 DEG C.Within this temperature range, can
Accelerate the evaporation rate of the organic solvent, guarantee that organic solvent is completely removed from the mixed powder, be conducive to improve into
The processing quality of the hot isostatic pressing of one step.
In step s 30, described the step of vacuumizing degassing processing, may include:
S32, by the jacket for being mounted with the mixed powder be evacuated to the vacuum degree in the jacket be less than or equal to
1.0×10-2Pa；And
S34, to it is described be mounted with described in the mixed powder to be wrapped under the vacuum degree heat.
The completeness and herein of degassing processing is vacuumized using first vacuumizing the step of reheating processing and advantageously ensuring that
The property of the mixed powder is unaffected in the process.
In one embodiment, the heating temperature of the step S34 can be 400 DEG C~900 DEG C, within this temperature range into
Row heating, can be avoided the graphene and steel powder is oxidized in degassing procedure due to the violent flow of gas.Institute
Stating heating time can be 2 hours~10 hours.
In one embodiment, can also include: the drying process step and it is described vacuumize degassing processing step it
Between, to after the drying process mixed powder carry out ball milling the step of.Ball milling is carried out before the vacuumize process step,
So that the particle size of the mixed powder is smaller, it is more advantageous to thorough degasification.Meanwhile reducing the particle ruler of the mixed powder
It is very little, be conducive to reduce the interface distance between graphene powder and steel powder in further hot isostatic pressing, improve graphene steel
The quality of composite material.The ball-milling technology can be low temperature ball milling, and the temperature of the low temperature ball milling can be -80 DEG C~-160
℃.Within this temperature range, the ball milling effect is more preferable, will not destroy the mixed powder material itself due to ball milling heat production
Property.
In step s 40, by the way that the mixed powder to be placed into closed jacket, to being mounted with the mixed powder
Jacket apply each to same pressure, while high temperature is imposed, under the influence of high pressure and temperature, so that the mixed powder is able to
Sintering and densification form graphene steel composite material.The material of the jacket can be selected from metal or glass.The pressurization is situated between
Matter can be using inert gases such as nitrogen, argon gas.
Preferably, the temperature of the hot isostatic pressing is preferably 1100 DEG C~1200 DEG C.The pressure of the hot isostatic pressing can be with
For 120MPa~200MPa.The hip treatment time can be 2 hours~5 hours.The temperature, pressure and time phase
Mutually cooperation, so that the global density for the graphene steel composite material that hot isostatic pressing is formed is more evenly, material is finer and close, mechanical
Performance is more preferable.
In step s 50, it is preferred that described the step of preparing graphene steel composite material may further include: by institute
Before the separation for stating composite body and the jacket, by the jacket for being mounted with the composite body be cooled to 20 DEG C~
35 DEG C of the step of.It is described after can be avoided the jacket removal by the first cooling processing step for again removing the jacket
Graphene steel composite material in the high temperature environment oxidation by air and influence the performance of graphene steel composite material.
In one embodiment, described the step of preparing graphene steel composite material, can further include: will be described multiple
After condensation material green body is separated with the jacket, to the graphene steel composite material carry out isothermal die forging process the step of, it is described etc.
The temperature of warm die forging can be 850 DEG C~1050 DEG C, and rate can be 0.005mm/min to 0.05mm/min.Pass through isothermal mould
The graphene steel composite material moulding can be conducive to the precision and quality for improving the graphene steel composite material by forging.
It in one embodiment, can further comprise step S200 after step S50: by the graphene steel composite material
Rolling is sheet material.By rolling so that the graphene composite material forms sheet material, be conducive to graphene steel composite material into one
Step polishing forms skates or blade.The temperature of the rolling can be 900 DEG C~1300 DEG C, preferably 1000 DEG C~1200 DEG C.
In one embodiment, the thickness of the graphene steel composite material after rolling can be 1.5mm~30mm.The rolling thickness
It can be determined according to the concrete application and type of the skates or blade.
In one embodiment, it can further comprise the step S300 after step S200: be pre- by sheet material polishing
The skates or blade of setting shape, polish skates or blade for different shape and thickness according to the type of required skates.
In one embodiment, the preparation step of the skates can also include: that the graphene steel composite material is polished
Before skates, the step of the rolling sheet material is quenched and is tempered.The graphene steel composite material passes through
Further quenching and tempering, increase the hardness and toughness of stone skates, enhance the movenent performance in skates use process.
In one embodiment, the temperature of the quenching can be 900 DEG C~1250 DEG C.The temperature of the tempering can be
180 DEG C~600 DEG C, times of tempering can be 2 to 3 times.
The embodiment of the present invention also provides a kind of ice skates, including shoe body and the skates.
Embodiment 1
The powder of following quality is provided: in graphene powder and steel powder total weight, graphene powder 1%, non-stone
Black class carbon 0.8%, Cr 4.0%, Mo 4.70%, Mn 0.2%, Si 0.3%, V 1.78%, W5.6%, surplus Fe.
Graphene powder and steel powder are put into the mixed powder machine of V-type and carry out mixed powder 8h, dehydrated alcohol is added and forms mixed liquor,
It is dried under 25 DEG C of mechanical stirrings after being in leather hard to mixed liquor, is transferred in vacuum drying box and carries out at thoroughly drying
Reason, drying temperature are 100 DEG C, obtain mixed powder；
Mixed powder after drying carries out low temperature ball milling, Ball-milling Time 0.5h~5h at -120 DEG C；
Mixed powder after low temperature ball milling is fitted into cylindrical steel jacket, being evacuated to vacuum pressure is 1 × 10-2Pa
Afterwards, 900 DEG C are heated to, 2h is kept the temperature, is cooled to welding steel capsule sealing sealing after room temperature；
By the steel capsule sealed temperature be 1150 DEG C, pressure be 140Mpa under conditions of carry out hip treatment 2h,
Then steel capsule is separated with composite body；
By composite body in 920 DEG C of progress isothermal die forging process, forging rate is 0.01mm/min；
Composite body after isothermal die forging process is subjected to rolling at 1000 DEG C and forms sheet material, the sheet thickness after rolling is
2mm；
Sheet material is subjected to 1200 DEG C of quenchings, carries out 350 DEG C of tempering later, 3 times is carried out and is tempered, 1 hour every time；
Sheet material after tempering is polished into skates.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that only that the temperature of hot isostatic pressing is 980 DEG C.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, and difference is only that the temperature of hot isostatic pressing is 1300 DEG C.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, and difference is only that the additional amount of chromium is 10%.In graphene powder and steel
In material powder total weight, the graphene powder including accounting for 1%, non-graphite carbon 0.8%, Cr 10%, Mo 4.70%, Mn
0.2%, Si 0.3%, V 1.78%, W5.6%, surplus Fe.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Embodiment 5
The present embodiment is substantially the same manner as Example 1, and difference is only that the additional amount of molybdenum is 2.5%.In graphene powder and
In steel powder total weight, the graphene powder including accounting for 1%, non-graphite carbon 0.8%, Cr 4.0%, Mo2.5%,
Mn0.2%, Si 0.3%, V 1.78%, W5.6%, surplus Fe.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Embodiment 6
The present embodiment is substantially the same manner as Example 1, and difference, which is only that, disperses dehydrated alcohol for mixed mixed powder
In after, be directly thoroughly dried to obtain mixed powder under 55 DEG C of mechanical stirrings.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 1
This comparative example is substantially the same manner as Example 1, the difference is that only without containing graphene.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 2
This comparative example is substantially the same manner as Example 1, and difference is only that this comparative example replaces hot isostatic pressing using isostatic cool pressing
Moulding process.
Specifically, the steel for being sealed with mixed powder is prepared under the same conditions by step same as Example 1
Jacket, by steel capsule in 25 DEG C of progress isostatic cool pressing processing, pressure 300MPa, time 10min；Then by steel capsule and wherein
The composite body of formation separates, by the composite body 1 × 10-3Pa vacuum, it is multiple to obtain graphene steel by sintering 2h at 1150 DEG C
Condensation material.Then graphene steel composite material is formed into skates by isothermal die forging process, rolling, quenching and tempering and polishing.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 3
This comparative example is substantially the same manner as Example 1, and the difference of preparation method is this comparative example using pressure forming+high temperature
The moulding process of sintering.
Specifically, preparing mixed powder and low temperature ball milling under the same conditions using step same as Example 1.
Mixed powder after ball milling is fitted into cylindrical die, mixed powder is compacted using 2000T press machine
Processing, pressure maintaining 10min.1150 DEG C of sintering are warming up to green body after extrusion forming, heat preservation 2h obtains graphene steel composite material.So
Graphene steel composite material is formed into skates by isothermal die forging process, rolling, quenching and tempering and polishing afterwards.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 4
This comparative example is substantially the same manner as Example 1, and difference is only that the temperature of hot isostatic pressing is 800 DEG C.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 5
This comparative example is substantially the same manner as Example 1, and difference is only in the deionized water that dehydrated alcohol is the quality such as replaced with to.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
Comparative example 6
This comparative example is substantially the same manner as Example 1, and difference is only that ball milling temperature is 30 DEG C.
Measuring Mechanical Properties are carried out to the skates of preparation, as a result as shown in table 1 below.
The mechanical performance of 1 skates of table
Embodiment and comparative example carries out the survey of bending strength, hardness, impact strength and coefficient of friction under the same conditions
Examination.As it can be seen from table 1 with graphene is not added with or by isostatic cool pressing or traditional pressure forming+high temperature sintering side
Method compares, and preparation method through the embodiment of the present invention is compound with Steel material by graphene and the skates that prepare are strong in bending resistance
Mechanical performance in terms of degree, hardness and impact flexibility is all greatly improved, while coefficient of friction is greatly lowered, and makes graphite
The compound skates of alkene steel show excellent comprehensive mechanical performance.Also, it is found through experiments that the temperature of hot isostatic pressing needs to control
In suitable temperature range, the mechanical performance too high or too low for temperature for being all unfavorable for improving skates.In addition, graphene powder with
During the entire process of the mixing of steel powder and the preparation of hot isostatic pressing, Ying Jinliang avoids the oxygen of graphene powder and steel powder
Change.By being mixed under the protection of liquid phase organic solvent, drying process avoids reacting with oxygen, while controlling ball milling temperature,
Graphene can be made to play its excellent properties to the greatest extent.The addition for cooperating graphene, by selecting suitable alloying element
Proportion, especially optimizes the content of the alloying elements such as chromium, molybdenum, further improves every mechanical performance parameter of skates.
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
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (15)
1. a kind of skates, including cutter hub and blade, which is characterized in that the material of at least described blade includes graphene steel composite wood
Material, the graphene steel composite material includes steel matrix and the graphene compound with the steel matrix.
2. skates according to claim 1, which is characterized in that at least described blade is by the graphene steel composite material
It is obtained after rolling and polishing, the graphene steel composite material by passing through graphene powder and steel powder after evenly mixing
Hot isostatic pressing preparation, the temperature of the hot isostatic pressing are 920 DEG C~1300 DEG C.
3. skates according to claim 1, which is characterized in that the step of preparing the graphene steel composite material include:
Mixed liquor is provided, the mixed liquor includes organic solvent, graphene powder and steel powder；
It is dried the mixed liquor to obtain mixed powder；
The mixed powder after the drying process is loaded into jacket and vacuumize degassing processing and by the jacket
Sealing；
The sealing jacket for being mounted with the mixed powder is subjected to hip treatment, the temperature of the hot isostatic pressing is 920 DEG C
~1300 DEG C, so that the mixed powder forms composite body；And
The composite body is separated with the jacket.
4. skates according to claim 3, which is characterized in that the step of preparing the graphene steel composite material is also wrapped
Include: the drying process step and it is described vacuumize between degassing processing step, to the mixing after the drying process
Powder carries out the step of low temperature ball milling, and the temperature of the low temperature ball milling is -80 DEG C~-160 DEG C.
5. skates according to claim 3, which is characterized in that the step of preparing the graphene steel composite material is also wrapped
It includes: by the composite body in 850 DEG C~1050 DEG C progress isothermal die forging process.
6. skates according to claim 2, which is characterized in that at least described blade is by the graphene steel composite material
It is quenched and is tempered after carrying out the rolling, obtained after then carrying out the polishing, the hardening heat is 900 DEG C~1250
DEG C, the tempering temperature is 180 DEG C~600 DEG C.
7. skates according to claim 1, which is characterized in that the graphene is in the graphene steel composite material
Mass fraction is 0.01%~2%.
8. skates according to claim 1, which is characterized in that the steel matrix includes ferro element, non-graphite carbon member
Element and other alloying elements, mass fraction of the non-graphite carbon in the graphene steel composite material are 0.1%
~1.5%.
9. skates according to claim 8, which is characterized in that other described alloying elements include chromium, the chromium member
Mass fraction of the element in the graphene steel composite material is 1.75%~5.5%.
10. skates according to claim 8, which is characterized in that other described alloying elements include molybdenum element, the molybdenum member
Mass fraction of the element in the graphene steel composite material is 4.5%~5.5%.
11. skates according to claim 1, which is characterized in that the coefficient of friction of the blade is 0.3~0.4.
12. skates according to claim 1, which is characterized in that the bending strength of the blade be 4000MPa~
5500MPa。
13. skates according to claim 1, which is characterized in that the hardness of the blade is 65HRC~75HRC.
14. skates according to claim 1, which is characterized in that the impact flexibility of the blade is 80J/cm2~100J/
cm2。
15. a kind of ice skates, which is characterized in that including shoe body and according to claim 1-14 described in any item skates.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329976A (en) * | 2011-09-06 | 2012-01-25 | 上海交通大学 | Preparation method of graphene reinforced metal-matrix composite |
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