CN108580877A - A kind of wind-powered electricity generation brake pad and its increasing material manufacturing method - Google Patents
A kind of wind-powered electricity generation brake pad and its increasing material manufacturing method Download PDFInfo
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- CN108580877A CN108580877A CN201810496501.1A CN201810496501A CN108580877A CN 108580877 A CN108580877 A CN 108580877A CN 201810496501 A CN201810496501 A CN 201810496501A CN 108580877 A CN108580877 A CN 108580877A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/16—Formation of a green body by embedding the binder within the powder bed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- 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
- C22C32/0084—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 carbon or graphite as the main non-metallic constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The present invention relates to a kind of wind-powered electricity generation brake pad and its increasing material manufacturing method, the wind-powered electricity generation brake pad is prepared by the following raw material：Matrix constituent element, friction component, lubricant component, noise reduction constituent element and binder；Wherein, described matrix constituent element include the superfine cupper powder of average grain diameter≤7 μm, average grain diameter≤10 μm glass putty and iron powder, the lubricant component includes sulfide and crystalline flake graphite, and the noise reduction constituent element includes petroleum coke, and the friction component includes zirconium oxide, titanate and mullite.The wind-powered electricity generation brake pad being prepared using raw material of the present invention in use will not cause surface of friction pair in crackle, pull, scratch and phenomena such as irregular wear.
Description
Technical field
The present invention relates to a kind of wind-powered electricity generation brake pad and its increasing material manufacturing method, more particularly to a kind of wind-powered electricity generation brake pad
The preparation of raw material and use 3D printing technique manufacture brake lining.
Background technology
With lack of energy, the aggravation of environmental problem, wind energy is as a kind of clean reproducible energy, by countries in the world
Concern.
It is later due to studying as the Wind turbines friction material of one of wind power equipment important spare part, it is related to such material
The research report of material is very few.Large-scale wind electricity unit generally comprises yaw brake device and high speed shaft brake device.Yaw brake fills
The braking moment for the braking moment higher speed shaft brake device set is small, and generally can meet it using resin base frication material makes
With requiring；And high speed shaft brake device, since its braking moment is big or retro-speed is high, used brake material is generally
Powder metallurgy friction material.And because copper based powder metallurgy friction material has good thermal conductivity, wearability, to antithesis
Abrasion it is smaller, it is smaller with the affinity of oxygen the advantages that, therefore, the brake material of high-power wind turbine unit high, low speed axis is also usual
Using copper based powder metallurgy friction material.
Currently, the friction material in domestic wind-powered electricity generation brake pad is based on copper-based, due to the friction piece of wind-powered electricity generation brake pad
It is difficult that required shape is processed by secondary mechanical per se with friction component hard particles.Traditional wind-powered electricity generation damper brake
The preparation process of piece is that ratio carries out dispensing as required first, then V-arrangement batch mixer is used to mix, press is recycled to be pressed
Green compact are made, green compact are combined with the steel back with copper plate and carry out pressure sintering in bell-type furnace or chain-belt type stove,
Green compact are sintered and are welded together into brake lining with steel back.Long using the period needed for common process manufacture brake lining, efficiency is low, and
It needs to make sintered-carbide die, subsequent shapes forming and Properties Control, this traditional burning is carried out using press and sintering furnace
Knot preparation process seriously constrains manufacture efficiency and the shape control of the wind-powered electricity generation brake pad, and is prepared using this method
Wind-powered electricity generation brake pad mechanical strength it is relatively low, easily cause the stripping of friction piece and backboard in use, and then influence
The service life of wind-powered electricity generation brake pad.
In addition, the wind-powered electricity generation brake pad prepared in the prior art, the Hard Inclusion in friction material uses on the high side so that rubs
Hardness, the wearability for wiping material have reached requirement, however but larger to the secondary damage of friction, and noise pollution is serious.
In addition, usually containing the heavy metals such as lead, zinc in conventional wind-powered electricity generation brake pad friction material, during use, lead powder can move with the wind
It moves, causes the serious pollution to environment.
Invention content
In order to solve the above-mentioned technical problem of wind-powered electricity generation brake pad in the prior art, the present invention provide a kind of one-pass molding,
Preparation efficiency height, mechanical strength, and environment amenable wind-powered electricity generation brake pad small to damage that friction is secondary and its increase material system
Make method.
Wind-powered electricity generation brake pad of the present invention, is prepared by the following raw material：Matrix constituent element, friction component, lubricant component,
Noise reduction constituent element and binder；Wherein, described matrix constituent element includes the superfine cupper powder of average grain diameter≤7 μm, average grain diameter≤10 μm
Glass putty and iron powder, the lubricant component includes sulfide and crystalline flake graphite, and the noise reduction constituent element is petroleum coke, the friction
Constituent element includes zirconium oxide, titanate and mullite.
Further, by percentage to the quality, it is prepared by the following raw material：Average grain diameter≤7 μm of 50~65wt%
Superfine cupper powder, 0.1~1wt% average grain diameter≤10 μm glass putty and 15~30wt% average grain diameter≤10 μm iron
Powder；The petroleum coke of the sulfide of 1~2wt%, the crystalline flake graphite of 5~15wt%, 0.5~1wt%；The oxidation of 0.5~2wt%
The binder of zirconium, the titanate of 0.5~1.5wt%, the mullite of 0.5~1.5wt%, 0.1~0.2wt%.
Further, the sulfide is any one in molybdenum disulfide, tungsten disulfide or antimony trisulfide.
Further, the crystalline flake graphite is copper facing crystalline flake graphite.
Further, the petroleum coke is the calcined petroleum coke that average grain diameter is 47~74 μm.
Further, the titanate is any one in crystal whisker of hexa potassium titanate, calcium titanate or iron titanate.
Further, the mullite is the mullite that average grain diameter is 47~74 μm.
Further, the binder is any one in kerosene, gasoline or polyethylene glycol.
Further, the wind-powered electricity generation brake pad, it is preferred to match, by percentage to the quality, it is prepared by the following raw material
It arrives：Glass putty that the average grain diameter of superfine cupper powder, 0.8wt% that the average grain diameter of 60wt% is 7 μm is 10 μm and 22wt%'s is flat
The iron powder that equal grain size is 10 μm；The molybdenum disulfide of 2wt%, the copper facing crystalline flake graphite of 10wt%, 1wt% average grain diameter be 47 μm
Calcined petroleum coke；The zirconium oxide of 2wt%, the crystal whisker of hexa potassium titanate of 1wt%, 1wt% average grain diameter for 74 μm not come
The polyethylene glycol of stone, 0.2wt%.
Further, the present invention also provides the increasing material manufacturing method of the wind-powered electricity generation brake pad, include the following steps：
S1 establishes the threedimensional model of wind-powered electricity generation brake pad by existing 3 d modeling software, three-dimensional using Slice Software setting part
Each layer slice thickness of model carries out planar layer slice along Z-direction to three-dimensional part model, obtains section wheel from level to level
Wide data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder 100~
It stirs 7~10min in the vertical high speed material mixing machine of 400r/min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, oil
Coke, zirconium oxide, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate in laser forming room, wherein the steel back, which is surface, has the thickness to be
8~20 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad.
Further, 3D printing forming parameters described in S5 is as follows：Laser spot diameter is 0.1mm-0.2mm, is swashed
Luminous power is 200w-400w, and laser scanning speed 10mm/s-30mm/s, laser lap rate is 30%-70%, and slice thickness is
0.02mm-0.10mm。
Using above-mentioned technical proposal, advantageous effect is caused by the present invention：
(1) wind-powered electricity generation brake pad of the present invention, using the copper powder of different-grain diameter, glass putty and iron powder as the matrix of friction material
Constituent element using petroleum coke as absorbing sound and lowering noise constituent element, then adds zirconium oxide, titanate using sulfide, crystalline flake graphite as lubricant component
With mullite as friction component, can play the role of between the metal matrix material of different-grain diameter it is coordinated, to shape
At the metallic matrix of continuous net-shaped distribution, then coordinate the hard titanate of ultra-fine grain diameter, can be generated between metallic matrix
The effect that dispersion-strengtherning is dissolved each other so that friction component and lubricant component can be uniformly distributed and tightly be wrapped in continuous net-shaped point
In the metallic matrix of cloth, the shear strength of the ontology for the wind-powered electricity generation brake pad being prepared using raw material of the present invention and its
Adhesive strength with steel back is about 2 times of common process, can generate outer strong interior profit, the enhancing effect of energy-absorbing noise reduction.
Preparation-obtained wind-powered electricity generation brake pad also has following excellent specific property simultaneously：Enough mechanical strengths, hardness and
Density is suitable with common process, and sintering quality is far above common process；Friction material does not generate rupture, divides in use
Layer, will not remove with backboard, will not form the mechanical failures such as deep torn grain, peeling, ensure the feasible rate of wear；Adapt to environment
It is required that it is steady when braking, noise is small；Without harmful substances such as asbestos, the lead for being unfavorable for environmental protection in material, in braking process and make
After dynamic, material and its wear debris will not burn, smolder or give out bad smell；It can for a long time in wet condition and temperature
Range has stronger corrosion resistance at -60 DEG C~+50 DEG C.In addition, described in being prepared using raw material of the present invention
Wind-powered electricity generation brake pad in use will not cause surface of friction pair in crackle, pull, scratch and phenomena such as irregular wear.
(2) wind-powered electricity generation brake pad of the present invention, further, in specified raw material type of the present invention and certain original
Under material proportioning, the wind-powered electricity generation brake pad being prepared has high-wearing feature, excellent heat resistance and enough friction stabilities；
The wherein described high-wearing feature is embodied in：Abrasion loss≤0.1cm of the wind-powered electricity generation brake pad3/ MJ, and high-wearing feature is but also lock
Piece has sufficiently long service life；The performance test of the heat resistance is embodied in：The wind-powered electricity generation brake pad transient heating is arrived
When 900~1000 DEG C and long-time heating are to 300~400 DEG C, mechanical performance and mechanical property holding are basically unchanged；The foot
Enough friction stabilities are embodied in：In high temperature, pressure and speed, the friction coefficient of brake lining is sufficiently large, is surveyed in testing stand
Friction coefficient instantaneous value and average value all in the range of each corresponding tolerance range, and when braking break-in, brake lining rubs
± 15% of variation no more than institute's value under similarity condition after the completion of break-in for wiping coefficient, when other conditions are constant, most
The average friction coefficient obtained under big contact, moisture conditions is no more than ± 15% relative to the variation under drying condition.This
Outside, the wind-powered electricity generation brake lining being prepared under specific conditions of mixture ratios also has stronger anti-caking and thermal fatigue resistance, and brake lining
Anti-caking largely influence the stability of its friction coefficient, this is because the secondary working surface of friction should not occur
It bonds, friction surface otherwise can be caused to form the destruction of peeling, scratch, welding and other destructives during the work time, in turn
It can influence the stability of the friction coefficient of brake lining；Meanwhile wind-powered electricity generation brake pad of the present invention also has higher thermal coefficient
And specific heat of combustion and small linear expansion coefficient.
(3) the increasing material manufacturing method of wind-powered electricity generation brake pad of the present invention passes through dual batch mixing, i.e. high speed batch mixing and V-type
Batch mixing so that coordinated effect can be generated between different-grain diameter material, and forms the metallic matrix of continuous net-shaped distribution,
Further, then by laser sintered, the hard titanate meeting of ultra-fine grain diameter and metal during one side laser sintering (SLS)
The effect that dispersion-strengtherning is dissolved each other is generated between matrix so that friction component and lubricant component are uniformly distributed and are tightly wrapped in company
In the metallic matrix of continuous net distribution, on the other hand, it is laser sintered during laser beam improve the Fast Sintering of friction piece
Performance so that the friction piece intensity being prepared is high, and the shear strength of ontology and its adhesive strength with steel back are about
It is 2 times of common process, outer strong interior profit, the enhancing effect of energy-absorbing noise reduction can be generated.Using increasing material manufacturing side of the present invention
Method prepares wind-powered electricity generation brake pad, and effective solution wind-powered electricity generation brake pad complex procedures, the problem of manufacturing cycle length eliminate hard
Matter alloy mold manufactures and press forming problem.It is short with technological process, forming efficiency is high, manufactured brake lining friction piece intensity
The features such as height, uniform ingredients.Preparation for wind power equipment brake pad provides batch method for fast mfg.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the three-dimensional structure diagram of apoplexy electric braking brake lining of the present invention；
Fig. 2 is the cross section structure figure of apoplexy electric braking brake lining of the present invention；
Fig. 3 is the structural schematic diagram of brake lining steel back in the present invention；
1. substrate；2. wind-powered electricity generation brake pad；3. friction piece.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention：
Specifically, the present invention provides following examples and the method for the invention is described in detail in detail.
The proportioning table of Examples 1 to 6
Embodiment 1
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：50wt%'s
The average grain diameter of glass putty and 27wt% that the average grain diameter of superfine cupper powder, 1wt% that average grain diameter is 7 μm is 10 μm is 10 μm
Iron powder；The molybdenum disulfide of 1.2wt%, the crystalline flake graphite of 15wt%, 0.6wt% average grain diameter be 47 μm of petroleum coke；
The zirconium oxide of 2wt%, the crystal whisker of hexa potassium titanate of 1.5wt%, 1.5wt% average grain diameter be 74 μm mullite, 0.2wt%
Kerosene.
The increasing material manufacturing method of wind-powered electricity generation brake pad described in the present embodiment, includes the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 100r/
It stirs 10min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 8 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；The wherein described 3D printing forming parameters are as follows：Laser spot diameter is 0.1mm,
Laser power is 200w, and laser scanning speed 10mm/s, laser lap rate is 30%, slice thickness 0.02mm.
Embodiment 2
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：57wt%'s
The average grain diameter of glass putty and 30wt% that the average grain diameter of superfine cupper powder, 0.1wt% that average grain diameter is 5 μm is 7 μm is 6 μm
Iron powder；The tungsten disulfide of 1wt%, the copper facing crystalline flake graphite of 8wt%, 0.7wt% average grain diameter be 52 μm of petroleum coke；
The zirconium oxide of 1wt%, the calcium titanate of 1wt%, 1wt% average grain diameter be 50 μm mullite, 0.2wt% gasoline.
The increasing material manufacturing method of wind-powered electricity generation brake pad described in the present embodiment, includes the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 400r/
It stirs 7min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 20 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；Wherein, the 3D printing forming parameters are as follows：Laser spot diameter is
0.15mm, laser power 300w, laser scanning speed 20mm/s, laser lap rate are 50%, slice thickness 0.05mm.
Embodiment 3
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：60wt%'s
The average grain diameter of glass putty and 22wt% that the average grain diameter of superfine cupper powder, 0.8wt% that average grain diameter is 7 μm is 10 μm is 10 μm
Iron powder；The antimony trisulfide of 2wt%, the copper facing crystalline flake graphite of 10wt%, 1wt% average grain diameter be 47 μm of petroleum coke；
The zirconium oxide of 2wt%, the iron titanate of 1wt%, 1wt% average grain diameter be 74 μm mullite, 0.2wt% polyethylene glycol.
Further, the present invention also provides the increasing material manufacturing method of the wind-powered electricity generation brake pad, include the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 200r/
It stirs 8min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 12 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；Wherein, the 3D printing forming parameters are as follows：Laser spot diameter is
0.2mm, laser power 400w, laser scanning speed 30mm/s, laser lap rate are 70%, slice thickness 0.10mm.
Embodiment 4
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：62wt%'s
The average grain diameter of glass putty and 29wt% that the average grain diameter of superfine cupper powder, 0.4wt% that average grain diameter is 7 μm is 7 μm is 10 μm
Iron powder；The molybdenum sulfide of 1wt%, the copper facing crystalline flake graphite of 5wt%, 0.5wt% average grain diameter be 60 μm of calcined petroleum coke
Charcoal；The zirconium oxide of 1wt%, the crystal whisker of hexa potassium titanate of 0.5wt%, 0.5wt% average grain diameter be 74 μm mullite,
The kerosene of 0.1wt%.
The increasing material manufacturing method of wind-powered electricity generation brake pad described in the present embodiment, includes the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 350r/
It stirs 9min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 17 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；Wherein, the 3D printing forming parameters are as follows：Laser spot diameter is
0.15mm, laser power 360w, laser scanning speed 24mm/s, laser lap rate are 55%, slice thickness 0.08mm.
Embodiment 5
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：64wt%'s
The average grain diameter of glass putty and 15wt% that the average grain diameter of superfine cupper powder, 0.3wt% that average grain diameter is 4 μm is 3 μm is 8 μm
Iron powder；The antimony trisulfide of 1.8wt%, the copper facing crystalline flake graphite of 13wt%, 0.9wt% average grain diameter be 55 μm of calcined petroleum coke
Charcoal；The zirconium oxide of 2wt%, the iron titanate of 1.5wt%, 1.3wt% average grain diameter be 70 μm mullite, 0.2wt% vapour
Oil.
Further, in this embodiment the increasing material manufacturing method of the wind-powered electricity generation brake pad, includes the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 380r/
It stirs 10min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 20 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；Wherein, the 3D printing forming parameters are as follows：Laser spot diameter is
0.14mm, laser power 320w, laser scanning speed 16mm/s, laser lap rate are 60%, slice thickness 0.10mm.
Embodiment 6
Wind-powered electricity generation brake pad described in the present embodiment is prepared by the following raw material by percentage to the quality：65wt%'s
The average grain diameter of glass putty and 23wt% that the average grain diameter of superfine cupper powder, 0.6wt% that average grain diameter is 7 μm is 10 μm is 10 μm
Iron powder；The antimony trisulfide of 1wt%, the copper facing crystalline flake graphite of 7wt%, 0.6wt% average grain diameter be 74 μm of calcined petroleum coke
Charcoal；The zirconium oxide of 0.5wt%, the iron titanate of 1.3wt%, 0.8wt% average grain diameter be 74 μm mullite, 0.2wt%
Polyethylene glycol.
The increasing material manufacturing method of wind-powered electricity generation brake pad described in the present embodiment, includes the following steps：
S1 is established the threedimensional model of wind-powered electricity generation brake pad, is arranged using Slice Software by existing 3 d modeling software
Each layer slice thickness of three-dimensional part model carries out planar layer slice to three-dimensional part model along Z-direction, obtains from level to level
Cross section profile data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and are generated corresponding
Processing program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 400r/
It stirs 7min in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke, oxidation
Zirconium, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate 1 in laser forming room, wherein the steel back, which is surface, thickness
For 18 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing of making
Raw material manufactures the wind-powered electricity generation brake pad 2；Wherein, the 3D printing forming parameters are as follows：Laser spot diameter is
0.2mm, laser power 400w, laser scanning speed 30mm/s, laser lap rate are 65%, slice thickness 0.08mm.
In addition, also specifically the increasing material manufacturing method employed in above-described embodiment is refined in present embodiment,
It is specific as follows：
It is specifically included in step S1：
S101 establishes the brake lining friction body three-dimensional models using three-dimensional software；
Brake lining friction body Model is carried out format conversion in three-dimensional software, generates stl file by S102.
S103 creates gallery model using Magic softwares；
The stl file comprising brake lining friction body Model is imported Magic softwares by S104；
S105 repairs brake lining friction body Model in Magic softwares；
S106 requires brake lining friction piece model orientation and being placed in Magic softwares in substrate (steel back) model
Position；
S107 carries out slicing delamination operation to brake lining friction body Model, and generates CLI format synusia files.
Step S2 is specifically included：
CLI format synusia files are imported filling software by S201；
S202 plans that laser beam scan path fills every layer of slicing layer in filling software, and exports comprising filling information
CLI format synusia files；
The CLI format synusia files comprising filling information are imported 3D printing equipment by S203.
Step S4 is specifically included：
S401 clears up 3D printing equipment working chamber, ensures free from foreign meter and other metal powders in molding room；
S402 corrects scraper levelness；
Powder after S403 installs the brake lining steel back with copper plate as substrate, and loading mixes into powder feeding cylinder
Last metallurgical raw material powder；
S404 closes working chamber's door, vacuumizes and pours the argon gas for preventing metal from aoxidizing；
Step S5 is specifically included：
S501, powdering scraper is first the powder for forming a thickness on the flat-pushing substrate to working chamber of mixed-powder；
S502, laser beam are sintered base by the filling contour line constituency for the current layer for including in the CLI formats synusia file
Powder on plate, processes current layer；
S503, formation cylinder decline the distance of a slicing layer thickness, and scraper retracts original position, and powder feeding cylinder rises a slicing layer
The distance of thickness, powdering scraper send the metallurgical raw material powder of a slicing layer thickness on manufactured current layer upper berth again；
S504, the data that the 3D printing equipment equipment calls in next layer of profile carry out selective laser sintering forming；
S505, the 3D printing equipment equipment judges whether to complete the brake lining friction piece printing, if otherwise returning to step
Rapid S503, if it is terminates printing.
In addition, also being post-processed in the present invention to workpiece is prepared by 3D increasing material manufacturing methods, post-processing side
Method specifically comprises the following steps：
S601, by the wind-powered electricity generation brake pad 2 (i.e. substrate 1 and the friction piece 3 being sintered together with it) from the molding
It is taken out in room, remaining powder between friction piece 3 after vibratory cleaning selective sintering；
S602 carries out product inspection to brake lining.
Further, it is described to further illustrate the present invention that the present invention also provides following comparative examples
Comparative example 1：It is prepared using raw material described in embodiment 2 and the conventional preparation techniques described in proportioning and background technology
Wind-powered electricity generation brake pad, wherein the conventional preparation techniques include the following steps：
1. prepared by base：Uniform mixed powder and transition powder are sequentially added in mold using 315 tons of press, are pressed into required close
Spend green compact, wherein the transition powder is the superfine cupper powder and glass putty in embodiment 2, remaining is mixed powder；
2. being sintered：The green compact that transition powder and mixed powder are suppressed are by transition zone (becoming transition zone after the compacting of transition powder) court
Under type is placed on copper plated steel back, is put into chain-belt type sintering furnace and carries out pressureless sintering and goes out finished product, 890 DEG C of maximum sintering temperature,
Total soaking time 8h, water jacket cooling cooperation wind turbine cooling.
Comparative example 2：Using the raw material and preparation process described in patent document CN103639404A, Wind turbines use is prepared
Brake pad specifically includes following steps：
1. prepared by green compact：By 100 part of 200 mesh electrolytic copper powder, 27 parts of reduced iron powders, 16 part of 200 mesh Alundum, 16 parts of days
Right quartz sand, 13 part of 200 mesh ferro-boron, 45 part of 50 mesh crystalline flake graphite, 14 parts of glass fibres, 11 part of 600 mesh glass powder, 7 parts it is fine
SiO2 particles are added in mold after mixing in proportion, are pressed into green compact；
2. being sintered：Green compact being overlayed in the steel back after copper plating treatment, carries out vacuum heating-press sintering, pressure is 1~2MPa,
890 DEG C of sintering temperature, heat-insulation pressure keeping 3.5h furnace coolings；
3. subsequent processing：It is heated by gas burner in material surface, temperature keeps the temperature 10min, room temperature cooling at 1000 DEG C
Post-processing is at required shape.
Further, the present invention still further provides 1~2 wind-powered electricity generation damper brake of above-described embodiment 1~6 and comparative example
The performance test methods and test result of piece, specific test method refer to TB/T 3470-2016, and test result is as shown in table 1.
1 selective laser sintering of table increases material and shapes brake lining friction piece performance
From table 1 it follows that selective laser sintering increases the wind-powered electricity generation brake pad manufactured by material forming technology, steel back
It it is about 2 times of common process with the adhesive strength of friction piece and the shear strength of friction piece, hardness and density are suitable, sintering
Quality is far above common process.Wherein, wind-powered electricity generation brake pad prepared by the common process selected in test result is using existing
In technology prepared by the preparation process of the formula of conventional wind-powered electricity generation brake lining and traditional wind-powered electricity generation brake pad described in background technology
Obtained wind-powered electricity generation brake pad, specifically refers to document.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and range is defined.Under the premise of not departing from design concept of the present invention, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
It has all recorded in detail in the claims.
Claims (10)
1. a kind of wind-powered electricity generation brake pad, which is characterized in that be prepared by the following raw material：Matrix constituent element, friction component, lubrication group
Member, noise reduction constituent element and binder；Wherein, described matrix constituent element includes the superfine cupper powder of average grain diameter≤7 μm, average grain diameter≤10
μm glass putty and iron powder, the lubricant component includes sulfide and crystalline flake graphite, and the noise reduction constituent element includes petroleum coke, described
Friction component includes zirconium oxide, titanate and mullite.
2. wind-powered electricity generation brake pad according to claim 1, which is characterized in that by percentage to the quality, prepared by the following raw material
It obtains：The superfine cupper powder of average grain diameter≤7 μm of 50~65wt%, the glass putty of average grain diameter≤10 μm of 0.1~1wt% and 15
The iron powder of average grain diameter≤10 μm of~30wt%；The sulfide of 1~2wt%, the crystalline flake graphite of 5~15wt%, 0.5~
The petroleum coke of 1wt%；The zirconium oxide of 0.5~2wt%, the titanate of 0.5~1.5wt%, 0.5~1.5wt% mullite,
The binder of 0.1~0.2wt%.
3. wind-powered electricity generation brake pad according to claim 1 or claim 2, which is characterized in that the sulfide is molybdenum disulfide, curing
Any one in tungsten or antimony trisulfide；The titanate is any one in crystal whisker of hexa potassium titanate, calcium titanate or iron titanate.
4. according to any wind-powered electricity generation brake pad of claims 1 to 3, which is characterized in that the crystalline flake graphite is copper facing scale
Graphite.
5. according to any wind-powered electricity generation brake pad of Claims 1 to 4, which is characterized in that the petroleum coke is average grain diameter
For 47~74 μm of calcined petroleum coke.
6. according to any wind-powered electricity generation brake pad of Claims 1 to 5, which is characterized in that the mullite is that average grain diameter is
47~74 μm of mullite.
7. according to any wind-powered electricity generation brake pad of claim 1~6, which is characterized in that the binder be kerosene, gasoline or
Any one in polyethylene glycol.
8. according to any wind-powered electricity generation brake pad of claim 1~7, which is characterized in that optimum ratio, with mass percent
Meter, is prepared by the following raw material：The average grain diameter of superfine cupper powder, 0.8wt% that the average grain diameter of 60wt% is 7 μm is 10 μm
Glass putty and the average grain diameter of 22wt% be 10 μm of iron powder；The molybdenum disulfide of 2wt%, the copper facing crystalline flake graphite of 10wt%,
The calcined petroleum coke that the average grain diameter of 1wt% is 47 μm；The zirconium oxide of 2wt%, the crystal whisker of hexa potassium titanate of 1wt%, 1wt%
The polyethylene glycol of mullite, 0.2wt% that average grain diameter is 74 μm.
9. the increasing material manufacturing method of any wind-powered electricity generation brake pad of claim 1~8, which is characterized in that include the following steps：
S1 establishes the threedimensional model of wind-powered electricity generation brake pad by existing 3 d modeling software, and part is arranged using Slice Software
Each layer slice thickness of threedimensional model carries out planar layer slice to three-dimensional part model along Z-direction, obtains section from level to level
Facial contour data；
S2, pair cross-section outline data are handled, and scan path is filled, and obtain scanning path data, and generate corresponding processing
Program；
S3, according to formula ratio, by the superfine cupper powder, glass putty, iron powder, sulfide, titanate and binder in 100~400r/
7~10min is stirred in the vertical high speed material mixing machine of min to be uniformly mixed, then by uniform mixed powder and crystalline flake graphite, petroleum coke,
Zirconium oxide, mullite are put into the rotating speed mixing 2h with 20rpm in V-type batch mixer, and 3D printing raw material is used as after mixing；
S4 is fixed on the steel back of brake lining as substrate in laser forming room, wherein the steel back be surface have thickness be 8~
20 μm of copper plate；
S5, directly according to the processing program of formulation in steel back, under 3D printing technological parameter, using the 3D printing raw material of making
Manufacture the wind-powered electricity generation brake pad.
10. according to the preparation method described in right 9, which is characterized in that 3D printing forming parameters described in S5 is as follows：Laser
Spot diameter is 0.1mm-0.2mm, laser power 200w-400w, laser scanning speed 10mm/s-30mm/s, laser lap
Rate is 30%-70%, slice thickness 0.02mm-0.10mm.
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| CN109385586A (en) * | 2018-11-15 | 2019-02-26 | 北京科技大学 | A kind of preparation method of powder metallurgy friction material and friction block |
| CN111779781A (en) * | 2020-07-08 | 2020-10-16 | 北京浦然轨道交通科技股份有限公司 | Brake pad and manufacturing method thereof |
| CN113073225A (en) * | 2021-02-10 | 2021-07-06 | 华东交通大学 | Brake material for medium-low speed magnetic suspension train and preparation method thereof |
| CN113976859A (en) * | 2021-11-24 | 2022-01-28 | 昆明理工大学 | Uniform and continuous iron phase reinforced copper high-speed rail brake friction block and preparation method thereof |
| CN115041700A (en) * | 2022-04-28 | 2022-09-13 | 中钛国创(青岛)科技有限公司 | Increase-decrease mixed preparation method of titanium alloy brake pad holder |
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| CN113976859A (en) * | 2021-11-24 | 2022-01-28 | 昆明理工大学 | Uniform and continuous iron phase reinforced copper high-speed rail brake friction block and preparation method thereof |
| CN115041700A (en) * | 2022-04-28 | 2022-09-13 | 中钛国创(青岛)科技有限公司 | Increase-decrease mixed preparation method of titanium alloy brake pad holder |
| CN115041700B (en) * | 2022-04-28 | 2024-05-24 | 中钛国创(青岛)科技有限公司 | Increasing, decreasing, mixing and preparing method of titanium alloy brake pad holder |
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