CN102134412B - Damping vibration-attenuating noise-reducing coating material used under hot environment - Google Patents
Damping vibration-attenuating noise-reducing coating material used under hot environment Download PDFInfo
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- CN102134412B CN102134412B CN 201110048947 CN201110048947A CN102134412B CN 102134412 B CN102134412 B CN 102134412B CN 201110048947 CN201110048947 CN 201110048947 CN 201110048947 A CN201110048947 A CN 201110048947A CN 102134412 B CN102134412 B CN 102134412B
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Abstract
The invention relates to a damping vibration-attenuating noise-reducing coating material used under hot environment and a preparation method thereof. The material is mainly prepared from the following raw materials according to mass percent: 40-70 percent of micron stainless steel powder, 5-10 percent of micron Ni-based alloy powder, 5-10 percent of nano aluminium oxide or white corundum, 5-10 percent of nano titanium dioxide, 5-10 percent of micron stannum metal powder and 10-20 percent of epoxy resin. The material is formed by agglomeration according to the following methods: proportioning,mixing, spray drying, sieving, and the like. The damping vibration-attenuating noise-reducing coating material has simple production process, high cost performance, firm adhesion with a steel basal body, high deposition efficiency of coatings, and is environmental friendly; and in the airtight hot environment with the temperature higher than or equal to 200 DEG C, the damping vibration-attenuating noise-reducing coating material achieves good stability, involatile, indissolubility, long-term non-deformability, non-deterioration and long service life; and the damping vibration-attenuating noise-reducing coating material has the functions of heat insulation as well as resistance to high temperature and corrosion caused by salt mist media and the like.
Description
Technical field
The present invention relates to field of materials, particularly relate to the vibration damping and noise reducing coated material under a kind of hot environment that is used for industries such as oil, chemical industry, power station, boats and ships.
Background technology
Along with development of modern industry, the status of pipe network is more and more important.Pipe network gathers in the production run property equipment of industries such as oil, chemical industry, power station, boats and ships, causes that vibration and probability of noise are also increasing.Owing to reasons such as high temperature, high pressure, the medium period property in the pipeline flows with intermittence and pulse causes Analysis of Pipe Vibrations and noise, thereby causes a lot of harm: the noise pollution that at first brings to environment influences people's physical and mental health; Vibration and noise will increase excess power, power consumption is increased on the other hand, be prone to cause the fatigure failure of parts, reduce its work-ing life; The intensive pipe vibration gently then makes production equipment etc. not run well, and is heavy then break and cause major accidents such as burning, blast.
Producing vibration when pipe network is worked in the production run property equipment of industries such as oil, chemical industry, power station, boats and ships with the reason of noise is: the resonance effect that the swiftly flowing frequency of pipeline internal medium is produced when becoming integral multiple with the natural frequency of pipe fitting.The reason that produces resonance effect has following 3 points: (1) machine power balance quality difference or basic design are improper; (2) pipeline internal medium flow at high speed pulsation; (3) the pipeline inner fluid speed is too fast, and TURBULENT BOUNDARY LAYER SEPARATION and produce eddy current causes vibration.
For integral structure components such as high-temperature pipe, it is necessary requiring its pressure-bearing and having performances such as enough resistance to compressions and fatigue; So integrated member must be even matter and high-intensity, so the caused noise of pipeline internal medium flow at high speed and mechanical vibration is inevitable.How to reduce and control noise and vibration, people adopt whole buoyant raft that mechanical vibration source and other structure are separated as far as possible: adopt the big organism of ratio of damping to be covered for normal temperature pipeline and member; And high temperature member also can adopt damping alloy to replace traditional material, but owing to the big organism of ratio of damping can not be used for >=200 ℃ of hot environments, and damping alloy intensity is far below pipeline and member.So the way of taking for the vibration and noise reducing material that uses in >=200 ℃ of hot environments at present is to coat rock wool, slag wool or spun glass etc. in component surface such as pipelines to be used for vibration and noise reducing: thus but said material life-time service under sealed environment is prone to efflorescence, flying dust contaminate environment.
Coating technology effectively vibration and noise reducing also gives goods good impression, and can utilize coating inherent stratiform packed structures to bring a series of special propertys.But the existing coating that is used for damping generally is the conventional washcoat material of single structure except organic coating, the vibration damping and noise reducing performance is low.
Summary of the invention
Technical problem to be solved by this invention is: a kind of vibration damping and noise reducing coated material that is used under the hot environment is provided, and this coated material manufacture craft is simple, cost performance is high; In airtight hot environment good stability, non-volatile, do not decompose, the shape that keeps remaining unchanged for a long period of time, never degenerate, long service life.
The present invention solves its technical problem and adopts following technical scheme:
The vibration damping and noise reducing coated material that is used under the hot environment provided by the invention; It is big, multiple dimensioned metal, oxide compound and the organism compound powder of density variation: its basic phase material is a metal-powder; The density of this metal-powder is big, wettability is preferably arranged, and resistance to corrosion is strong; Filling is oxide compound and organism mutually, and little, the stable performance of the density of this oxide compound has good matching with metal ingredient; This organism can form nonuniformity, microporous special construction as pore-forming material.Described composite powder can obtain through the raw material spraying drying earlier, adopts technologies such as cold spraying, oxygen-acetylene flame sprayed coating or plasma spraying to be coated in workpiece surface again.
The vibration damping and noise reducing coated material that is used under the hot environment provided by the invention, it is mainly processed by following raw material: micron powder of stainless steel 40～70%, micron Ni base alloy powder 5～10%, nanometer Al
2O
3Or white fused alumina powder 5～10%, nano-TiO
2Powder 5～10%, micron Sn metal-powder 5～10%, epoxy resin 10～20% is mass percent.
The application of said vibration damping and noise reducing coated material in the association area that causes neighbourhood noise and vibration.
Said association area is industries such as oil, chemical industry, power station or boats and ships.
The above-mentioned vibration damping and noise reducing coated material that is used under the hot environment provided by the invention, it adopts following method to reunite and forms:
(1) batching: take by weighing micron powder of stainless steel 40～70% respectively by the quality proportioning, micron Ni base alloy powder 5～10%, nanometer Al
2O
3Or white fused alumina powder 5～10%, nano-TiO
2Powder 5～10%, micron Sn metal-powder 5～10%, epoxy resin 10～20%;
(2) batch mixing: get the Z 150PH that is equivalent to raw material total mass 2～5%, join in the raw material and mix, add the deionized water that is equivalent to raw material total mass 50～100% again, be deployed into slip;
(3) spraying drying: slip is delivered to the mist projection granulating tower, and slip is processed agglomerate type powder through atomization drying in the mist projection granulating tower, and mist projection granulating tower temperature is 150～200 ℃;
(4) screening: the gained agglomerate type powder is sieved, get granularity and be 45～100 microns agglomerate type powder.
The granularity of said agglomerate type powder is 45～100 microns, this agglomerate type powder is used for >=200 ℃ of hot environments under.
Said agglomerate type powder is applied in the association area that causes neighbourhood noise and vibration, especially oil, chemical industry, power station or shipbuilding industry; And adopt existing cold spraying, oxygen-acetylene flame sprayed coating or plasma spraying to be coated in workpiece surface, the damping in-fighting type special construction coating of nonuniformity, many micropores, multidigit mistake and polycrystalline circle of preparation mortise.
The effect of each integral part of the present invention is following:
Micron powder of stainless steel: density～7.0 g/cm
3(this is the literary style that expression approximates, and is as follows), highdensity bonding soft phase raw material; This powder stock good toughness has wetting preferably cohesiveness, possesses good erosion resistance, gasproof erosion and corrosion resistance nature.
Micron Ni base alloy powder: density～9.0 g/cm
3, the soft phase material of highdensity toughness; This powder stock is the reducing metal composition, is prone to be reduced, can increase the antioxidant property of coating.
Nanometer Al
2O
3Or white fused alumina powder: density～3.6 g/cm
3, low-density hard phase material; Nanometer Al
2O
3Or white fused alumina powder cost is low, and powder flowbility is good, stable performance, and Al
2O
3Resist is fine and close protective oxide film, can increase wear-resistant, the resistance to elevated temperatures of material.
Nano-TiO
2(white titanium pigment) powder: density～4.0 g/cm
3, highdensity hard phase material; Nano-TiO
2The powder cost is low, nano-TiO
2Powder can play the disperse filling effect, is prone to make coated material to form defect structures such as nonuniformity, multidigit mistake, polycrystalline circle and many micropores;
Micron Sn metal-powder: density～5.8g/cm
3, highdensity soft phase material; Sn is the softer metal of a kind of quality, and fusing point is lower; Sn is divalence or tetravalence in compound, can oxidation by air; Tin is rich in ductility, and plasticity-is strong, selfreparing, healing and viscosifying power that tool is extremely strong.
Epoxy resin: density～1.0 g/cm
3, low-density soft phase material, nontoxic organic composition; As pore-forming material, can play the effect of clad metal powder on the one hand, be prone to make coated material to form nonuniformity, multi-cellular structure; Simultaneously can also bring a series of special propertys, like insulativity, erosion resistance, high bond strength and wear resistance etc. to coating.
The present invention compared with prior art has following main advantage:
One of which, the equipment or the device of production run in industries such as oil, chemical industry, power station, boats and ships owing to pipeline internal medium periodically causes the vibration and the noise of pipe fitting with intermittent mechanical vibration mobile, single unit system, will pollute the environment, break ring element.In order to overcome the problems referred to above; The present invention utilizes big, the multiple dimensioned metal of density variation, nonmetal and organic constituent raw material; Carry out the compound powdered material that can spray, adopt spraying coating process to prepare the nonuniformity and the microporous coating of mortise in industrial pipeline and component surface with the formation of reuniting.Because coating is main with metal and inorganics, organism only plays raising hole and defective effect in coating, thereby can be used for reducing >=the pipeline damping noise-reducing vibration damping that uses under 200 ℃ of temperature.
They are two years old; Prepared sprayed coating is as the vibration and noise reducing coating, and its ultimate principle is to make the pipeline of applying coating produce the nonuniformity effect, viscoelastic property or the characteristics such as polycrystalline circle, multidigit mistake and many defect structures of utilizing the coated material laminate structure to have; The portion of energy of absorbed oscillation and noise; Form with " heat " discharges again, and so-called mechanics loss promptly takes place, the purpose that reduce vibration to reach, suppresses noise.
Its three, prepared sprayed coating also has like excellent properties such as heat insulation, high temperature resistant, salt fog resistance dielectric corrosions when keeping corrosion resistance nature that conventional coatings had and certain effect of heat insulation.
In a word; The vibration damping and noise reducing coated material resistance to high temperature oxidation, the corrosion resistance that are used under the hot environment that the present invention developed are good; Can effectively reduce the vibration and the noise of member such as pipeline in the industries such as oil, chemical industry, power station, boats and ships; Reduce the noise pollution of bringing for people's physical and mental health, guarantee the operation of member long-term safety such as industrial pipeline.
High temperature according to the invention is >=200 ℃ environment, and used vibration damping and noise reducing coated material manufacture craft is simple, cost performance is high; , coating sedimentation effect height firm with the steel matrix bonding; Have environmentally friendly characteristics, in airtight hot environment good stability, non-volatile, do not decompose, the shape that keeps remaining unchanged for a long period of time, never degenerate, long service life; Have functions such as heat insulation, high temperature resistant, salt fog resistance dielectric corrosion simultaneously.
Embodiment
Further illustrate content of the present invention below in conjunction with concrete embodiment, but content of the present invention not only is confined to following embodiment.
Embodiment 1:
(1) batching: get granularity and be 40～100 microns powder of stainless steel 4.0Kg, granularity is 40～100 microns Ni base alloy powder 1.0Kg, and granularity is the Al of 40～80 nanometers
2O
3Or white fused alumina powder 1.0Kg, granularity is the TiO of 40～80 nanometers
2(white titanium pigment) powder 1.0Kg, granularity is 40～100 microns Sn metal-powder 1.0Kg and epoxy resin 2.0Kg, and it is mixed;
(2) batch mixing: get the 0.2kg Z 150PH, join in the raw material behind thorough mixing, add 5.0Kg zero(ppm) water again, it is for use to stir into homodisperse suspension slip;
(3) spraying drying: become fine droplets to spray in the prilling tower slurry atomization with the centrifugal atomizing nozzle; The spraying gun rotating speed is 15000～20000 r/min; The drop of atomizing relies on the surface tension of self to be shrunk to spherical; Dry in hot blast, temperature is controlled in 150～200 ℃ of scopes in the prilling tower, the adjusting of temperature height so that the powder thorough drying exceed.Subsequently through vacuum fan with collecting in the exsiccant reunion powder suction cyclonic separator;
(4) screening: the powder of collecting is sieved through mechanical sub-sieve, get granularity and be 45～100 microns powder;
With the pattern of scanning electron microscopic observation powder, measure the flowability and the loose density of powder with the Hall under meter.Detected result is listed in table 1.
Embodiment 2:
Except in the step 2, the presoma slip that is disposed is chosen the 0.2kg Z 150PH, joins in the raw material behind thorough mixing, adds 10.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 1.
Embodiment 3:
Except in the step 2, the presoma slip that is disposed is chosen the 0.5kg Z 150PH, joins in the raw material behind thorough mixing, adds 5.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 1.
Embodiment 4:
Except in the step 2, the presoma slip that is disposed is chosen the 0.5kg Z 150PH, joins in the raw material behind thorough mixing, adds 10.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 1.
Embodiment 5:
(1) batching: get granularity and be 40～100 microns powder of stainless steel 7.0Kg, granularity is 40～100 microns Ni base alloy powder 0.5Kg, and granularity is the Al of 40～80 nanometers
2O
3Or white fused alumina powder 0.5Kg, granularity is the TiO of 40～80 nanometers
2(white titanium pigment) powder 0.5Kg, granularity is 40～100 microns Sn metal-powder 0.5Kg and epoxy resin 1.0Kg;
(2) batch mixing: get the 0.2kg Z 150PH, join in the raw material behind thorough mixing, add 5.0Kg zero(ppm) water again, it is for use to stir into homodisperse suspension slip;
(3) spraying drying: become fine droplets to spray in the prilling tower slurry atomization with the centrifugal atomizing nozzle; The spraying gun rotating speed is 15000～20000 r/min; The drop of atomizing relies on the surface tension of self to be shrunk to spherical; Dry in hot blast, temperature is controlled in 150～200 ℃ of scopes in the prilling tower, the adjusting of temperature height so that the powder thorough drying exceed.Subsequently through vacuum fan with collecting in the exsiccant reunion powder suction cyclonic separator;
(4) screening: the powder of collecting is sieved through mechanical sub-sieve, get granularity and be 45～100 microns powder;
Use scanning electron microscopic observation Conglobation type composite powder to be spherical powder, measure the flowability and the loose density of reunion powder with the Hall under meter.Detected result is listed in table 2.
Embodiment 6:
Except in the step 2, the presoma slip that is disposed is chosen the 0.2kg Z 150PH, joins in the raw material behind thorough mixing, adds 10.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 5.
Embodiment 7:
Except in the step 2, the presoma slip that is disposed is chosen the 0.5kg Z 150PH, joins in the raw material behind thorough mixing, adds 5.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 5.
Embodiment 8:
Except in the step 2, the presoma slip that is disposed is chosen the 0.5kg Z 150PH, joins in the raw material behind thorough mixing, adds 10.0Kg zero(ppm) water again, and it is for use to stir into homodisperse suspension slip; Other preparation method and performance test methods are with embodiment 5.
Subordinate list
The detected result of table 1 embodiment 1～4 gained powder
| ? | Powder morphology | Mobile (s/50g) | Loose density (g/cm 3） |
| Embodiment 1 | Fine and close spherical powder | 79 | 5.2 |
| Embodiment 2 | Spherical powder | 86 | 4.8 |
| Embodiment 3 | Spherical powder | 80 | 5.1 |
| Embodiment 4 | Spherical powder | 85 | 4.8 |
The detected result of table 2 embodiment 5～8 gained powder
| ? | Powder morphology | Mobile (s/50g) | Loose density (g/cm 3） |
| Embodiment 5 | Fine and close spherical powder | 75 | 6.8 |
| Embodiment 6 | Spherical powder | 80 | 6.4 |
| Embodiment 7 | Spherical powder | 76 | 6.6 |
| Embodiment 8 | Spherical powder | 76 | 6.5 |
Claims (7)
1. vibration damping and noise reducing coated material that is used under the hot environment is characterized in that this vibration damping and noise reducing coated material mainly processed by following raw material: micron powder of stainless steel 40～70%, micron Ni base alloy powder 5～10%, nanometer Al
2O
3Or white fused alumina powder 5～10%, nano-TiO
2Powder 5～10%, micron Sn metal-powder 5～10%, epoxy resin 10～20% is mass percent; Said hot environment is meant>=200 ℃ environment.
2. the purposes of the said vibration damping and noise reducing coated material of claim 1 is characterized in that said vibration damping and noise reducing coated material is applied in the association area that causes neighbourhood noise and vibration.
3. according to the purposes of the said vibration damping and noise reducing coated material of claim 2, it is characterized in that said association area is oil, chemical industry, power station or shipbuilding industry.
4. preparation method who is used for the vibration damping and noise reducing coated material under the hot environment is characterized in that said vibration damping and noise reducing coated material adopts following method to reunite and forms:
(1) batching: take by weighing micron powder of stainless steel 40～70% respectively by the quality proportioning, micron Ni base alloy powder 5～10%, nanometer Al
2O
3Or white fused alumina powder 5～10%, nano-TiO
2Powder 5～10%, micron Sn metal-powder 5～10%, epoxy resin 10～20%;
(2) batch mixing: get the Z 150PH that is equivalent to raw material total mass 2～5%, join in the raw material and mix, add the deionized water that is equivalent to raw material total mass 50～100% again, be deployed into slip;
(3) spraying drying: slip is delivered to the mist projection granulating tower, and slip is processed agglomerate type powder through atomization drying in the mist projection granulating tower, and mist projection granulating tower temperature is 150～200 ℃;
(4) screening: the gained agglomerate type powder is sieved, get granularity and be 45～100 microns agglomerate type powder.
5. preparation method according to claim 4, it is characterized in that said agglomerate type powder be used for >=200 ℃ of hot environments under.
6. according to claim 4 or 5 described preparing methods, it is characterized in that said agglomerate type powder is applied in the association area that causes neighbourhood noise and vibration, and adopt cold spraying, oxygen-acetylene flame sprayed coating or plasma spraying to be coated in workpiece surface.
7. preparation method according to claim 6 is characterized in that said association area is oil, chemical industry, power station or shipbuilding industry.
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103102773B (en) * | 2013-01-22 | 2015-09-09 | 老虎粉末涂料制造（太仓）有限公司 | There is the powder coating of high-wear resistance |
| CN105733386B (en) * | 2016-02-19 | 2018-05-11 | 青岛爱尔家佳新材料股份有限公司 | A kind of production technology of aqueous damping slurry |
| CN106750386B (en) * | 2016-12-21 | 2019-01-11 | 深圳摩方材料科技有限公司 | A kind of noise reduction particle and the preparation method and application thereof |
| CN112076967A (en) * | 2020-09-18 | 2020-12-15 | 中煤科工开采研究院有限公司 | Environment-friendly steel plate surface corrosion-resistant treatment technology |
| CN112159617A (en) * | 2020-09-24 | 2021-01-01 | 浙江华彩新材料有限公司 | Special noise-reduction powder coating for leisure furniture and preparation method thereof |
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| CN101338084A (en) * | 2008-08-15 | 2009-01-07 | 昆明理工大学 | High-temperature antioxidation ceramic coating and method for preparing same |
| CN201310402Y (en) * | 2008-10-28 | 2009-09-16 | 张钟月 | Improved mobile muffler |
| CN101962770A (en) * | 2010-11-03 | 2011-02-02 | 武汉理工大学 | Intermediate and high temperature solar energy selective absorbing coating and preparation method thereof |
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2011
- 2011-03-02 CN CN 201110048947 patent/CN102134412B/en not_active Expired - Fee Related
Patent Citations (4)
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|---|---|---|---|---|
| CN1327885A (en) * | 2001-06-29 | 2001-12-26 | 沈阳黎明航空发动机集团公司 | Process for preparing high-temp protecting layer on surface of metal |
| CN101338084A (en) * | 2008-08-15 | 2009-01-07 | 昆明理工大学 | High-temperature antioxidation ceramic coating and method for preparing same |
| CN201310402Y (en) * | 2008-10-28 | 2009-09-16 | 张钟月 | Improved mobile muffler |
| CN101962770A (en) * | 2010-11-03 | 2011-02-02 | 武汉理工大学 | Intermediate and high temperature solar energy selective absorbing coating and preparation method thereof |
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