CN105779924A - Method for manufacturing high-temperature insulated wire by spraying thermal barrier coating to wrap surface of Pt metal wire - Google Patents
Method for manufacturing high-temperature insulated wire by spraying thermal barrier coating to wrap surface of Pt metal wire Download PDFInfo
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- CN105779924A CN105779924A CN201610173997.XA CN201610173997A CN105779924A CN 105779924 A CN105779924 A CN 105779924A CN 201610173997 A CN201610173997 A CN 201610173997A CN 105779924 A CN105779924 A CN 105779924A
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- spraying
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- thermal barrier
- barrier coating
- temperature insulation
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
- C23C4/16—Wires; Tubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention provides a method for manufacturing a high-temperature insulated wire by spraying a thermal barrier coating to wrap the surface of a Pt metal wire. According to the method, the high-temperature thermal barrier coating material wraps the surface of the Pt metal wire through a spraying method, and therefore the high-temperature insulated wire keeping the insulation characteristic at the highest temperature of 1200 DEG C is formed; the high-temperature thermal barrier coating material is yttria-stabilized zirconia YSZ or aluminum oxide Al2O3; and the high-temperature insulated wire can replace a traditional naked Pt metal wire lead, the high-temperature insulated wire can keep the good electric insulation characteristic under the high-temperature environment with the temperature up to 1200 DEG C, and the insulated wire has the important actual application value and potential in the field of creativeness high-temperature intelligent sensors and can be widely applied to many aviation industry in-situ integration sensors. The technology of the insulated wire can be compatible with the correlation technique of an existing aircraft engine, and can be used for the aviation commercial process in recent years.
Description
Technical field
The present invention relates to aero-engine measurement technology field, utilize spraying thermal barrier coating to be wrapped in the method that Pt wire surface manufactures high-temperature insulation line in particular it relates to a kind of, high-temperature insulation line can be used for aero-engine measurement technology, belongs to aero-engine field.
Background technology
Aero-engine field, in order to realize for temperature, the measurement of the factors such as adaptability to changes, need to complete above-mentioned measurement at each part of the aero-engine integrated a series of sensors of such as turbine blade surface original position, in above-mentioned measurement process, any one integrated sensor is required for lead-in wire outside part, if but the lead-in wire that we use in the process is exposed tinsel, then it can be subject to the parts substrates metal interference such as turbo blade, measure thus affecting sensor signal, it is thus desirable to a kind of high-temperature insulation lead-in wire, himself there is good high-temperature insulation characteristic, such that it is able to be prevented effectively from the at high temperature parts metals substrate interference for sensor measurement, make measurement result more accurate.
Such as Chinese patent CN103889076A, the processing method that the patent provides a kind of heating wire with insulating barrier and the heating wire with insulating barrier, the surface of its heating wire is covered with a layer insulating, the thickness of this insulating barrier is 2～3 microns, the material of this insulating barrier is metal-oxide, and described metal-oxide is one or more the mixture in aluminium sesquioxide, zirconium dioxide, silicon dioxide or titanium dioxide.But its metal oxide thickness only has 2～3 microns, good adhesion cannot be kept under 800～1200 DEG C of high temperature and can come off.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of method utilizing spraying thermal barrier coating parcel Pt wire surface to manufacture high-temperature insulation line, manufactured high-temperature insulation line is possible not only to the high temperature (combustor such as aero-engine) of resistance to up to 1200 DEG C, and there is good electric insulation under this hot environment, the conduction between parts metals substrate and Pt metal lead wire can be prevented effectively from, thus realizing effective measurement of electricity device under ultrahigh-temperature environment.
For achieving the above object, the technical solution used in the present invention is:
The present invention provides a kind of method utilizing spraying thermal barrier coating parcel Pt wire surface to manufacture high-temperature insulation line, described method is to utilize spraying method to be wrapped in Pt wire surface high temperature thermal barrier insulating coating material, thus forming the highest high-temperature insulation line keeping insulation characterisitic under 1200 DEG C of high temperature, it is prevented effectively from the interference for sensor measurement signal of the parts metals base conductive；Described high temperature thermal barrier insulating coating material is yttrium stable zirconium oxide YSZ or aluminium oxide Al2O3。
Further, described method comprises the steps:
The first step: be installed on spraying frock by Pt tinsel, uses adhesive tape to fix and carry out mark to distinguish tinsel positive and negative；
Second step: use supersonic velocity flame plating equipment, sprays NiCrAlY metal adhesion layer on Pt front wiry；After spraying one side, rotary spraying frock, NiCrAlY is sprayed at the Pt tinsel back side；It is repeatedly performed this step spraying operation until metal adhesive layer thickness reaches 10 μm to 50 μm；
3rd step: use air plasma spraying equipment, sprays yttrium stable zirconium oxide YSZ or aluminium oxide Al on the front of metal adhesion layer wiry2O3Ceramic topcoats；After spraying one side, rotary spraying frock 180 degree, the back side of Pt wire metal adhesive linkage sprays yttrium stable zirconium oxide YSZ or aluminium oxide Al2O3Ceramic topcoats；It is repeatedly performed this step spraying operation until ceramic topcoats thickness reaches 50 μm to 300 μm；
4th step: remove adhesive tape, obtain high-temperature insulation line.
Preferably, described Pt tinsel is Pt or Pt alloy material.
Preferably, described Pt thickness wiry is 0.1mm-0.2mm.
Preferably, described yttrium stable zirconium oxide YSZ or aluminium oxide Al2O3Ceramic topcoats, thickness is 100-200 μm.
Preferably, described metal adhesion layer, thickness is 25 μm to 35 μm.
The present invention also provides for the high-temperature insulation line of the spraying thermal barrier coating parcel Pt wire surface that a kind of said method prepares, and this covered wire can be widely applied on many aircraft industry original position integrated sensors.
The present invention uses spraying equipment to prepare high-temperature insulation line, the thermal boundary insulation coating layer thickness of high-temperature insulation line is at 50 microns to 300 microns, and high-temperature insulation line still has good adhesion at the highest 800～1200 DEG C of temperature range thermal barrier coatings and does not come off that (reason is to use spraying equipment (especially supersonic velocity flame plating equipment) to coat metal adhesive layer thickness and reach 10 microns to 50 microns with Pt tinsel, middle adhesive linkage makes heat barrier coat material and Pt tinsel still have very strong adhesion under the high temperature of up to 1200 DEG C), finally make still to keep good electrical insulation characteristics.
Compared with prior art, the present invention has following beneficial effect:
High-temperature insulation line of the present invention can substitute for traditional bare metal silk lead-in wire, and relative to traditional lead technology, the most high energy of this high-temperature insulation line keeps good insulation characterisitic under 1200 DEG C of high temperature so that sensor measurement is accurate and effective more；The method can be applied in different types of wire surface, and can change material composition and the thickness of the thermal barrier coating wrapped up as required；Can be widely applied on many aircraft industry original position integrated sensors, for instance: based on the turbo blade original position integrated thermal electric resistive sensor etc. of MEMS technology；This covered wire technical matters preparation flow is simple, can be used for aeronautical chart industrialized production.
Accompanying drawing explanation
By reading detailed description non-limiting example made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:
Fig. 1 is the fixing schematic diagram of Pt tinsel adhesive tape in one embodiment of the invention；
Fig. 2 is the Pt wire section figure coating thermal boundary insulating coating of one embodiment of the invention；
Fig. 3 is the photo of the Pt insulated wire of one embodiment of the invention；
In figure: Pt metal wire 1, NiCrAlY metal adhesive layer by layer 2, yttrium stable zirconium oxide YSZ or aluminium oxide Al2O3Ceramic topcoats 3, adhesive tape 4.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art and are further appreciated by the present invention, but do not limit the present invention in any form.It should be pointed out that, to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into protection scope of the present invention.
As Figure 1-3, a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line, may be used for aero engine turbine blades surface film Pt pyrostat lead technology, by high-temperature insulation line connecting turbine vane temperature sensor element prepared by the method for the invention, the conduction between parts metals substrate and Pt metal lead wire can be prevented effectively from, thus realizing the effective measurement at ultrahigh-temperature environment sensor.
As in figure 2 it is shown, the method for the invention is that thermal boundary insulating coating 2 utilizes spraying method be wrapped in Pt metal wire 1 surface, thus forming the highest high-temperature insulation line keeping insulation characterisitic under 1200 DEG C of high temperature.
In a preferred embodiment, the present invention uses supersonic velocity flame plating equipment, spray 10 microns to 50 microns NiCrAlY metal adhesion layer parcel Pt tinsels, middle adhesive linkage makes heat barrier coat material and Pt tinsel have very strong adhesion, then adopt air plasma spraying equipment coating thickness at the thermal boundary insulating coating of 50 microns to 300 microns, therefore the covered wire that prepared by present invention thermal boundary insulating coating under being up to 800 DEG C～1200 DEG C temperature still has good adhesion without coming off with Pt tinsel, and still keeps good electrical insulation characteristics.
In one embodiment, a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line, comprise the steps:
The first step: be installed on spraying frock by 0.1mmPt tinsel, uses adhesive tape to fix and carry out mark (as shown in Figure 1)；
Second step: use supersonic velocity flame plating equipment, sprays NiCrAlY metal adhesion layer, after spraying one side, and rotary spraying frock 180 degree, the spray metal wire back side；Circulation carries out until metal adhesive layer thickness reaches 10 μm to 50 μm, such as 25 μm；
3rd step: use air plasma spraying equipment, sprays YSZ zirconia ceramics surface layer, after spraying one side, and rotary spraying frock 180 degree, YSZ zirconia ceramics surface layer is sprayed at the tinsel back side；It is repeatedly performed this step, carries out until ceramic topcoats thickness reaches 50-300 μm, such as 100 μm；
4th step: remove adhesive tape, beat easily and put down gently, it is to avoid injure coating.
The high-temperature insulation line that obtained by above-mentioned steps is as in figure 2 it is shown, wherein: 1 is 0.1mmPt tinsel, and 2 be metal adhesion layer, and 3 for spraying YSZ ceramic topcoats 50-300 μm.4 is adhesive tape (this adhesive tape is High temperature-resistanadhesive adhesive tape, resistant to elevated temperatures range for 0-1200 DEG C), and the photo of insulated wire is as shown in Figure 3.
In another specific embodiment, a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line, comprise the steps:
The first step: be installed on spraying frock by 0.2mmPt tinsel, uses adhesive tape to fix and carry out mark (as shown in Figure 1)；
Second step: use supersonic velocity flame plating equipment, sprays NiCrAlY metal adhesion layer, after spraying one side, and rotary spraying frock 180 degree, NiCrAlY metal adhesion layer is sprayed at the tinsel back side；It is repeatedly performed this step, until metal adhesive layer thickness reaches 10 μm to 50 μm, such as 35 μm；
3rd step: use air plasma spraying equipment, spray aluminum oxide Al2O3Layer, after spraying one side, rotary spraying frock 180 degree, aluminium oxide Al is sprayed at the tinsel back side2O3；This step of repeatable operation, until aluminium oxide Al2O3Layer thickness reaches 50-300 μm, such as 200 μm；
4th step: remove adhesive tape, beat easily and put down gently, it is to avoid injure coating.
In the above embodiment of the present invention, use spraying equipment spray metal adhesive linkage and high temperature thermal barrier insulating coating, wherein metal adhesive layer thickness reaches 10 microns to 50 microns, high temperature thermal barrier insulating coating and Pt tinsel is made still to have very strong adhesion under the high temperature of up to 1200 DEG C, high temperature thermal barrier insulation coating layer thickness reaches 50-300 μm simultaneously so that whole covered wire can keep good electrical insulation characteristics.The present invention utilizes spraying thermal barrier coating to be wrapped in Pt wire surface and manufactures high-temperature insulation line, technological process is simple, cost is not high, it is possible to be prevented effectively from the conduction between metallic substrates and Pt metal lead wire, thus realizing effective measurement of electricity device under ultrahigh-temperature environment.
High-temperature insulation line of the present invention can substitute for traditional bare metal silk lead-in wire, and relative to traditional lead technology, the most high energy of this high-temperature insulation line keeps good insulation characterisitic under 1200 DEG C of high temperature so that sensor measurement is accurate and effective more；The method can be applied in different types of wire surface, and can change material composition and the thickness of the thermal barrier coating wrapped up as required；Can be widely applied on many aircraft industry original position integrated sensors, for instance: based on the turbo blade original position integrated thermal electric resistive sensor etc. of MEMS technology；This covered wire technical matters preparation flow is simple, can be used for aeronautical chart industrialized production.
It is pointed out that above-described embodiment employing process is a part of specific embodiment of the present invention, it is also possible to change kind and the thickness of heat barrier coat material as required, be not limited solely to the description of above-described embodiment, all can realize the purpose of the present invention.
Above specific embodiments of the invention are described.It is to be appreciated that the invention is not limited in above-mentioned particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, and this has no effect on the flesh and blood of the present invention.
Claims (8)
1. one kind sprays the method that thermal barrier coating parcel Pt wire surface manufactures high-temperature insulation line, it is characterized in that, described method is to utilize spraying method to be wrapped in Pt wire surface high temperature thermal barrier insulating coating material, thus forming the highest high-temperature insulation line keeping insulation characterisitic under 1200 DEG C of high temperature；Described high temperature thermal barrier insulating coating material is yttrium stable zirconium oxide YSZ or aluminium oxide Al2O3。
2. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to claim 1, it is characterised in that described method comprises the steps:
The first step: be installed on spraying frock by Pt tinsel, uses adhesive tape to fix and carry out mark to distinguish tinsel positive and negative；
Second step: use supersonic velocity flame plating equipment, sprays NiCrAlY metal adhesion layer on Pt front wiry；After spraying one side, rotary spraying frock, NiCrAlY is sprayed at the Pt tinsel back side；It is repeatedly performed this step spraying operation, until metal adhesive layer thickness reaches 10 μm to 50 μm；
3rd step: use air plasma spraying equipment, sprays YSZ or Al on the front of Pt metal adhesion layer wiry2O3Ceramic topcoats；After spraying one side, rotary spraying frock 180 degree, the back side of metal adhesion layer sprays YSZ or Al2O3Ceramic topcoats；It is repeatedly performed this step spraying operation, until ceramic topcoats thickness reaches 50 μm to 300 μm；
4th step: remove adhesive tape, obtain high-temperature insulation line.
3. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to claim 1, it is characterised in that described Pt tinsel is the one of Pt or Pt alloy material.
4. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to claim 1, it is characterised in that described Pt thickness wiry is 0.1-0.02mm.
5. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to any one of claim 1-3, it is characterised in that described ceramic topcoats, thickness is 100-200 μm.
6. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to any one of claim 1-3, it is characterised in that described metal adhesion layer, thickness is 25 μm to 35 μm.
7. a kind of method spraying thermal barrier coating parcel Pt wire surface manufacture high-temperature insulation line according to any one of claim 1-3, it is characterised in that described ceramic topcoats, thickness is 100-200 μm；Described metal adhesion layer, thickness is 25 μm to 35 μm.
8. the high-temperature insulation line of the spraying thermal barrier coating parcel Pt wire surface that method described in an any one of claim 1-7 prepares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610173997.XA CN105779924B (en) | 2016-03-24 | 2016-03-24 | The method for spraying thermal barrier coating package Pt wire surface manufacture high-temperature insulation line |
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| CN201610173997.XA CN105779924B (en) | 2016-03-24 | 2016-03-24 | The method for spraying thermal barrier coating package Pt wire surface manufacture high-temperature insulation line |
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| CN105779924A true CN105779924A (en) | 2016-07-20 |
| CN105779924B CN105779924B (en) | 2019-11-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172661A (en) * | 2019-05-15 | 2019-08-27 | 昆明理工大学 | A kind of thermal spraying pyrostat thermometric coating and preparation method |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172661A (en) * | 2019-05-15 | 2019-08-27 | 昆明理工大学 | A kind of thermal spraying pyrostat thermometric coating and preparation method |
| CN110172661B (en) * | 2019-05-15 | 2021-06-08 | 昆明理工大学 | Thermal spraying high-temperature sensor temperature measurement coating and preparation method thereof |
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| CN105779924B (en) | 2019-11-01 |
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