CN106244955B - Automobile brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre - Google Patents
Automobile brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre Download PDFInfo
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- CN106244955B CN106244955B CN201610754575.1A CN201610754575A CN106244955B CN 106244955 B CN106244955 B CN 106244955B CN 201610754575 A CN201610754575 A CN 201610754575A CN 106244955 B CN106244955 B CN 106244955B
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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
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/08—Iron group metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/04—Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and 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
- 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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Abstract
Automobile brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre.Powder metallurgic method is employed, successively including material preparation step, the pre-treatment step of alumina short fibre, nickel powder pre-treatment step, batch mixing step, powder pressing step, and blank sintering step.Described material preparation step, raw material is got the raw materials ready design according to following percentage by weight：Alumina short fibre：10 20%；Remaining is nickel powder.The present invention is using the method for powder metallurgy more excellent, the more preferable composite of wearability, heat/corrosion resistance of preparing mechanical property.With automobile brake disc paster antiwear heat resisting performance made from this material it is good, deform small, surface smoothness it is high.And this material in aluminum matrix composite brake disc with that can overcome the shortcomings of aluminium base thermal deformation is big, and the disc material Hot wear poor performance for solution light-weight electric automobile provides new thinking.
Description
Technical field
The present invention relates to a kind of alumina short fibre enhancing nickel-base composite material and preparation method thereof, and in particular to a kind of vapour
Car brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre.
Background technology
With the development of automotive light weight technology, brake disc cast iron materials are also by the light-duty alloy material institute such as aluminium alloy, magnesium alloy
Substitution.But in actual braking procedure mistake, these light-duty alloy material thermal deformations are serious, therefore invention one kind can protect this
Wear-resisting, corrosion-resistant, the resistant to elevated temperatures material of a little light-duty alloy structures seems more and more important.
Through being retrieved to prior art, it there is no and be disclosed using the correlation such as increased nickel-base composite material of alumina short fibre
Document.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, a kind of novel oxidized aluminium short fiber reinforced nickel is prepared
Based composites, due to the development of automotive light weight technology, and traditional cast iron brake disc density is high, and quality is big, therefore electric car mostly
Using aluminum matrix composite brake disc, but it is due to that aluminium base heat resistance is poor, due to the quick rise of temperature in friction process,
Thermal deformation is serious, it is therefore necessary to design optimization brake disc structure.The enhanced nickel-base composite material of alumina short fibre of the present invention
Heat resistance is good, and anti-wear performance is good, and corrosion resistance and good, any surface finish is smooth, is pasted with automobile brake disc made from this material
Piece both provided real opportunities for lightweight materials such as aluminium bases applied to brake disc, acieral high temperature thermal deformation was overcome again serious
Shortcoming.
To achieve the above object, the technical solution adopted by the present invention：
A kind of alumina short fibre strengthens the preparation method of nickel-base composite material, employs powder metallurgic method, its feature exists
In, successively including material preparation step, the pre-treatment step of alumina short fibre, nickel powder pre-treatment step, batch mixing step, powder compacting
Step, and blank sintering step；
Described material preparation step, raw material is got the raw materials ready design according to following percentage by weight：
Alumina short fibre 10-20%；
Surplus is Ni；
Wherein the purity of alumina short fibre is that 95%, Ni powder purities are 99.95%；
The pre-treatment step of described alumina short fibre, successively again including to alumina short fibre carry out treatment before plating and
Plate Ni and handle two steps,
The treatment before plating step again successively include acidic treatment, three steps of roughening treatment and sensitized treatment, specifically according to
It is secondary to be：
(1) acidic treatment：Pickling is carried out by watery hydrochloric acid；
(2) roughening process：With the dense H of HF+2SO4+CrO3Mixed solution carry out roughening treatment；
(3) sensitized treatment：It is SnCl with formula2+ HCl mixed solution carries out sensitized treatment；
Nickel Plating Treatment：Conventional nickel plating process has chemical nickel plating, electronickelling, vapour deposition nickel plating, is all maturation method；
Described nickel powder pre-treatment step mainly includes annealing, is specially：
(1) make annealing treatment：Nickel powder is set to be annealed at a temperature of vacuum environment, 863K 1 hour；
Described mixed powder process step：The present invention carries out mixed powder using magnetic agitation, compared with the mixed powder such as V-type batch mixer, ball milling
Means, magnetic agitation makes alumina short fibre distribution more uniform, reduces the stress produced during mixed powder.Mainly include
Wet mixing step, suction filtration step, three steps of drying steps, it is specific as follows：
(1) wet mixing step：Appropriate nickel powder is added into the mixed solution of glycerine and ethanol, the short fibre of aluminum oxide is slow added into
Dimension, it is stirring while adding.Finally put and be stirred to magnetic stirring apparatus.
(2) suction filtration step：With decompression nutsch filter suction filtration is carried out to mixing the mixture after powder；
(3) drying process：2 hours are incubated at a temperature of 373K, many and ethanol and glycerine is removed.Described powder compacting step
Suddenly：The powder and alumina short fibre of mixing are suppressed on pressure testing machine, its density increase of the base substrate by compacting
70%~80%；
Described blank sintering step：Under vacuum conditions, sintered 2 hours at a temperature of 1173K；
The alumina short fibre enhancing nickel-base composite material that the present invention is obtained by method made above；
Automobile brake disc of the present invention strengthens nickel-base composite material with alumina short fibre, and described automobile brake disc is mainly
Brake disc surface paster, brake disc structure use this material.
Alumina short fibre enhancing nickel-base composite material principle prepared by the present invention is simple, is overcome using alumina short fibre
The difficulties such as aluminum oxide continuous fiber skewness.Compared with alumina particle, the anti-wear performance of alumina short fibre is more preferable.Using
The method of wet mixing overcomes mixed uniformly difficulty between chopped fiber and powder.Using the method for nickel plating make alumina short fibre with
Interface adhesive strength between Ni substrate is more firm.
Mechanics heat resistance is prepared more preferably using the method for powder metallurgy based on the scheme present invention that gets the raw materials ready, wearability,
The more preferable composite of corrosion resistance.The paster made of this composite is arranged on automobile brake disc, its Thermal Resistant Surface
Impact is greatly enhanced, and anti-wear performance improves 3-5 times, and the application for other alloy in lightweight in lightweight automotive field provides base
Plinth.
Heat resistance is good, the raising of wearability and decay resistance be mainly it is relevant with material.Ni substrate has good
High temperature oxidation resisting ability, corrosion resistance.Alumina short fibre has superpower wearability, and the Nickel Plating Treatment on chopped fiber surface makes
What alumina short fibre was combined with Ni substrate more consolidates, more easy-formation, can effectively change the overall mechanical property of the material
Energy.
Alumina short fibre enhancing nickel-base composite material in the present invention has heat resistance good, anti-wear performance and corrosion resistant
Many advantages, such as corrosion can be good.Compared with use aluminum oxide continuous fiber or the enhanced nickel-base composite material of alumina particle, this hair
Bright chopped fiber is uniformly distributed in Ni-based dignity, performance good dispersion.The alumina short fibre enhancing nickel of the smaller quality of the present invention
The enhanced nickel-base composite material performance of alumina particle that the performance of based composites will compare multimass in the past is good, therefore is more easy to
Shaping.
Compared with traditional metal materials, the enhanced nickel-base composite material of the alumina short fibre has higher thermal-shock resistance
Energy, more preferable anti-wear performance and decay resistance.Big, poor corrosion resistance of thermal deformation of traditional cast iron material etc. is overcome to lack
Point, therefore Ni-based be combined of alumina short fibre enhancing is particularly suited for automobile brake disc and Novel lightweight automobile brake disc
Paster structure.
Fig. 1 is preparation technology flow chart
Fig. 2 is application structure schematic diagram of the present invention
Embodiment
Technical solution of the present invention is described further with reference to embodiments.
Embodiment 1
The alumina short fibre of the present embodiment strengthens the preparation method of nickel-base composite material, comprises the following steps：
(1) material preparation step：Raw material is got the raw materials ready design according to following percentage by weight：
Alumina short fibre：10%；
(come from commercially available, goods producer：Zhejiang Ou Shi overflows crystal fibre Co., Ltd, physical features：White silk floss shape,
95%) purity be；
Surplus is Ni：90%；
(2) pretreatment of alumina short fibre：The F-1600A alumina short fibres bought from the market to entering 10%
Soaked in the watery hydrochloric acid of concentration 10 minutes and carry out pickling.It is then the dense H of HF (40%) 100ml/L+ with formula2SO4 100ml/L+
CrO349g/L solution carries out roughening treatment 15 minutes.It is finally SnCl with formula220g/L+HCl (36%) 80ml/L is carried out
Sensitized treatment, the time is 15 minutes.
(3) alumina short fibre electroless copper：NiSO4·6H2O 100g/L+ sodium potassium tartrate tetrahydrates 80g/L+NH4Cl 50g/L
It is 50 that volume ratio is added in+sodium hypophosphite 60g/L mixed solutions：1 alumina short fibre, uses NH4The pH of solution is adjusted to 9 by Cl,
Nickel Plating Treatment is carried out at a temperature of temperature is 363K.
(4) nickel powder is pre-processed：Nickel powder is set to be annealed at a temperature of vacuum environment, 863K 1 hour；
(5) powder processing is mixed：It is 1 toward Volume fraction：Appropriate nickel is added in 1 glycerine and ethanol 100ml mixed solution
Powder, is slow added into alumina short fibre, stirring while adding.Finally put to rotating speed to stir on 400r/min magnetic stirring apparatus
12 hours；Then suction filtration is carried out with decompression nutsch filter to mixing the mixture after powder；Finally the mixed powder after suction filtration is existed
2 hours are incubated at a temperature of 373K, many and ethanol and glycerine is removed.
(6) pressed by powder is handled：Well mixed powder is inserted in mould, and applies 600MPa pressure, 5 points of pressurize
Clock.
(7) blank sintering is handled：Base substrate by compacting is sintered in the case where temperature is 1173K vacuum condition, burnt
The knot time is 2 hours.
(8) subsequent heat treatment：To improve the comprehensive mechanical property of composite, obtained alumina short fibre is strengthened into nickel
Based composites are heat-treated, and suitable Technology for Heating Processing is：1023K makes annealing treatment 2h, and then going down in 773K temperature should
Power is handled 1 minute, and finally the homogeneous state of stress handles 1h at a temperature of 573K.
Finally obtain alumina short fibre enhancing nickel-base composite material as shown in Fig. 2 numbering 1 be original brake disc, volume
Numbers 2 paster to be made using material of the present invention.When to mill material for 35CrMoA, alumina short fibre enhancing is Ni-based multiple
The tensile strength of condensation material is 1175MPa, and hardness is 265HV, and wear rate is 1.1 × 10-6g/m.The addition of alumina short fibre,
Be conducive to increasing the comprehensive mechanical property of the material, easy-formation, easy processing.
Embodiment 2
Alumina short fibre 20%
Surplus is Ni：80%
Using the preparation method as embodiment 1, the compound alumina short fibre enhancing that the present embodiment is obtained is Ni-based multiple
The tensile strength of condensation material is 1165MPa, and hardness is 300HV, and wear rate is 0.9 × 10-6g/m。
Comparative example
The present embodiment is used as reference examples, the enhanced nickel-base composite material of addition alumina particle, the group of its percentage by weight
Into：
Alumina particle 10%
Surplus is Ni：90%
The tensile strength of the compound nickel-base composite material of this composition is 1025MPa, and hardness is 235HV, and wear rate is 1.5
×10-6g/m.The interface connection of alumina particle and Ni substrate is very weak, is easily come off in high temperature friction process, or even embedded base
Body causes matrix damage.
Claims (2)
1. a kind of alumina short fibre strengthens the preparation method of nickel-base composite material, powder metallurgic method is employed, it is characterised in that
Include material preparation step, the pre-treatment step of alumina short fibre, nickel powder pre-treatment step, batch mixing step, powder compacting step successively
And blank sintering step suddenly,；
Described material preparation step, raw material is got the raw materials ready design according to following percentage by weight：
Alumina short fibre 10-20%
Surplus is Ni；
Wherein the purity of alumina short fibre is that 95%, Ni powder purities are 99.95%；
The pre-treatment step of described alumina short fibre, successively again including carrying out treatment before plating and plating Ni to alumina short fibre
Two steps are handled,
The treatment before plating step includes acidic treatment, three steps of roughening treatment and sensitized treatment successively again, is specifically followed successively by：
(211) acidic treatment：Pickling is carried out by watery hydrochloric acid；
(212) roughening treatment：With the dense H of HF+2SO4+CrO3Mixed solution carry out roughening treatment；
(213) sensitized treatment：It is SnCl with formula2+ HCl mixed solution carries out sensitized treatment；
Nickel Plating Treatment：Nickel plating process is chemical nickel plating, electronickelling, vapour deposition nickel plating；
Described nickel powder pre-treatment step includes annealing, is specially：Nickel powder is set to anneal 1 at a temperature of vacuum environment, 863K
Hour；
Described batch mixing step：Mixed powder, including wet mixing step, suction filtration step, three steps of drying steps are carried out using magnetic agitation
Suddenly, it is specific as follows：
(41) wet mixing step：Appropriate nickel powder is added into the mixed solution of glycerine and ethanol, alumina short fibre is slow added into,
It is stirring while adding；Finally put and be stirred to magnetic stirring apparatus；
(42) suction filtration step：With decompression nutsch filter suction filtration is carried out to mixing the mixture after powder；
(43) drying process：2 hours are incubated at a temperature of 373K, unnecessary alcohol and glycerine is removed；
Described powder pressing step：The powder and alumina short fibre of mixing are suppressed on pressure testing machine, passed through
Its density of the base substrate of compacting increase by 70%~80%；
Described blank sintering step：Under vacuum conditions, sintered 2 hours at a temperature of 1173K.
2. a kind of alumina short fibre obtained by preparation method described in claim 1 strengthens nickel-base composite material.
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| CN201610754575.1A CN106244955B (en) | 2016-08-29 | 2016-08-29 | Automobile brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre |
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| CN201610754575.1A CN106244955B (en) | 2016-08-29 | 2016-08-29 | Automobile brake disc paster strengthens nickel-base composite material and preparation method thereof with alumina short fibre |
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| CN111360269B (en) * | 2020-04-03 | 2022-05-06 | 浙江蓝天知识产权运营管理有限公司 | Multi-stage nanostructure reinforced laminated nickel-based composite material and preparation method thereof |
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| US4489138A (en) * | 1980-07-30 | 1984-12-18 | Sumitomo Chemical Company, Limited | Fiber-reinforced metal composite material |
| JPH032339A (en) * | 1989-05-30 | 1991-01-08 | Nissan Motor Co Ltd | Fiber reinforced magnesium alloy |
| JP2004332056A (en) * | 2003-05-08 | 2004-11-25 | Ngk Insulators Ltd | Composite material, and its production method |
| CN100507065C (en) * | 2007-04-10 | 2009-07-01 | 中北大学 | Carbon fiber reinforced nickel-based composite material and producing method thereof |
| CN102643097A (en) * | 2012-04-26 | 2012-08-22 | 上海交通大学 | Preparation method of aluminum oxide coated SiC particle reinforced nickel-based composite material |
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Effective date of registration: 20190129 Address after: 215200 East of Chang'an Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province (in Wujiang Science and Technology Pioneering Park) Patentee after: SUZHOU WUCHUANG MATERIAL TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 437405 Yuli Industrial Park, Fanpai New City, Shinan Town, Tongcheng County, Xianning City, Hubei Province Patentee before: Hubei Yuli Hengyang new Mstar Technology Ltd |