CN105130500B - A kind of deformation control method in rigid thermal insulation tile coating forming process - Google Patents
A kind of deformation control method in rigid thermal insulation tile coating forming process Download PDFInfo
- Publication number
- CN105130500B CN105130500B CN201510535953.2A CN201510535953A CN105130500B CN 105130500 B CN105130500 B CN 105130500B CN 201510535953 A CN201510535953 A CN 201510535953A CN 105130500 B CN105130500 B CN 105130500B
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- coating
- insulation tile
- rigid thermal
- matrix material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A kind of deformation control method in rigid thermal insulation tile coating forming process, belongs to porous ceramics heat-barrier material technical field, can be used for the preparation of the aircraft thermally protective materials such as space shuttle.Coating paste is coated on preparatory processing to certain thickness and the rigid thermal insulation tile ceramic matrix material surface of external form by the present invention, the matrix material of coat coating is placed in after drying heat treatment is sintered under high temperature, sintering heat treatment is taken out from hot environment after finishing and is cooled to room temperature, is finally carried out secondary operation and is thinned to final required thickness.Compared with directly matrix material is machined to final required thickness carry out the conventional method for applying formable layer again, deformation of the rigid thermal insulation tile in coating forming process can obtain effectively control.
Description
Technical field
The present invention relates to the deformation control method in a kind of rigid thermal insulation tile coating forming process, belong to porous ceramics heat-insulated
Field of material technology, can be used for the preparation of the aircraft thermally protective materials such as space shuttle.
Background technology
Aerospace craft is getting through the earth's atmosphere or will undergo serious Aerodynamic Heating during the flight in atmosphere, its surface temperature
Degree is drastically raised, it is therefore necessary to internally transmitted with stopping heat by thermally protective materials, so as to ensure internal staff and equipment
Within safety, rational temperature range.For example, space shuttle succeed in developing largely just have benefited from carbon/carbon, just
Property the advanced reliable thermally protective materials such as thermal insulation tile and flexible heat insulation felt.Wherein, rigid thermal insulation tile is to be applied to space shuttle
The important thermally protective materials at the positions such as windward side.For in its structure composition, it is mainly by the ceramic matrix material of high porosity
The radiation coating high on material and its surface is constituted.During military service, rigid thermal insulation tile is by the radiation coating high on its surface by more than 90%
Heat radiation go out, while preventing remaining heat from internally transmitting by the excellent thermal insulation performance of matrix material.Additionally, coating
Also have the other functions such as waterproof and anti-airflow scouring concurrently.Therefore, radiation coating high is most important for rigid thermal insulation tile.
Because rigid thermal insulation tile is mainly used in the military fields such as space flight, therefore its technical data has certain secrecy
Property.From at present, from the point of view of disclosed data, the external documents and materials report on rigid thermal insulation tile coating focuses primarily upon U.S.
In the publication and technical report of state.For example, " Two-the component of United States Patent (USP) US 3953646 disclosed in 1976
The coating of ceramic coating for silica insulation " descriptions is made up of barrier layer and radiating layer.Wherein, hinder
Interlayer prevents from being reacted between matrix and radiating layer between matrix material and radiating layer, between regulation coating and matrix
It is thermally matched, the consumption of radiation coating is controlled, it is sintered at 927-1371 DEG C by melten glass and formed；Radiating layer has radiation concurrently
And moisture-proof function, it is by radiation agent, high silica glass and Pyrex (B2O3·SiO2) the same sintering at 927-1371 DEG C and
Into.It is similar to therewith, another " Three-component ceramic coating of patent US 3955034 disclosed in 1976
In for silica insulation ", coating is made up of barrier layer, radiating layer and glaze layer, except that being free of in radiating layer
Pyrex, and glaze layer is then formed by high silica glass and Pyrex sintering.From unlike above-mentioned two patent, public affairs in 1978
The coating only one described in patent US 4093771 " Reaction cured glass and glass coatng " opened
Layer, be by between frit, metal or metallic compound (such as four silicon borides, silicon hexaboride, boron silicide, boron) etc. 1000-
1400 DEG C of complex phase glass for sintering formation next time, so as to avoid the excessive receipts caused by layering is repeatedly sintered to matrix material
Contract and deformation effect, and the stability of coating is improved.Wherein, frit is by boron oxide and silicone content borosilicate higher
Glass preparation is formed, and can also reduce sintering temperature or the regulation coefficient of expansion by adding glass flux.By comparison, 1983
" the High temperature glass thermal control structure and of patent US 4381333 disclosed in year
Coating described in coating " increased one layer of thermal expansion system again in addition to using above-mentioned coating as radiating layer on its surface
The number scattering layer low compared with radiating layer, it is by thermally-stabilised frit (such as melten glass, silicone content borosilicic acid glass higher higher
Glass) it is prepared from." the Toughened uni-piece fibrous of patent US 5079082 disclosed in 1992
Coating ingredients described in insulation " are essentially identical with US 4093771, increase only molybdenum disilicide radiation agent, and apply
Layer has immersed part of matrix material internal so that the adhesion enhancing between matrix, its waterproof and thermal shock resistance etc. are obtained
Further improve.Because above-mentioned coating is limited in as key component, therefore maximum operation (service) temperature using silica
Between 1482-1538 DEG C.In order to solve the above problems, 2001,2002 and patent US disclosed in 2004
The 20010051218 6444271 B2 and B1 of US 6749942 " Durable refractory ceramic of A1, US
Coating " using the refractory metal (molybdenum, tantalum, niobium, vanadium, chromium, tungsten) of more than 1650 DEG C of silicon and fusing point as main coating ingredients,
Sintered at a high temperature of 982-1427 DEG C and obtain silicide coating, and it is similar with US 5079082, and coating has been also immersed in part
Inside matrix material, the fusing point and softening point of coating have respectively reached 1949 DEG C and 1593-1649 DEG C.Disclosed in 2010 specially
The B1 of sharp US 7767305 " High efficiency tantalum-based ceramic composite structures "
Described in coating ingredients be mainly tantalum silicide, Pyrex, can also add molybdenum disilicide etc., sintering temperature 1220-
Between 1315 DEG C, resistance to elevated temperatures is up to 1650 DEG C.
The domestic documents and materials on rigid thermal insulation tile coating are then relatively fewer, the B of Chinese patent CN 101691138 " boats
The component and moulding technique of rigid thermal insulation tile coating have only been briefly touched upon in the preparation method of its aircraft thermal insulation tile ".Guo
Jinhua is in its academic dissertation《The preparation of thermal insulation tile surface high emission coating optimizes with performance》In, had to thermal insulation tile coating
The exploratory development of meaning, but its work focuses primarily upon coating ingredients with the when aspect such as moulding process, is primarily upon coating
Emissivity and thermal shock resistance etc..The technical paper that Wu Yongbin etc. is delivered《Ceramic insulation watt surface SiO2—B2O3—MoSi2—SiB4
The preparation of coating and performance study》Thermal insulation tile coating is prepared for, and the sign of key property has been carried out to it.
Data disclosed above is made a general survey of it is recognised that rigid thermal insulation tile coating moulding process is similar to, is exactly specifically：First make
The ceramic matrix material of standby rigidity thermal insulation tile, then in its surface coat coating slurry and drying, is finally placed on high temperature furnace
It is middle to obtain rigid thermal insulation tile through high temperature sintering heat treatment.It is worth noting that, the sintering in rigid thermal insulation tile coating preparation process
Temperature is general all more than 1000 DEG C, for example, the clear and definite coating sintering temperature of patent US3953646, US3955034 be 927-
1371 DEG C, patent US4093771 specify sintering temperature between 1000-1400 DEG C, patent US 20010051218 A1, US
The sintering temperature of 6444271 B2 and the B1 coatings of US 6749942 is 982-1427 DEG C, the sintering of the B1 of patent US 7767305
Temperature is between 1220-1315 DEG C.
In general, rigid thermal insulation tile occurs contraction and deformation in the high-temperature sintering process of coating, especially for
Size is larger and the less ceramic matrix material of thickness for, situation is more serious.Such as patent US4093771 is in its background skill
Just mentioned in art, the high temperature sintering of used more than 1260 DEG C of coating technology can cause that matrix material is deformed before this, and
Sintering temperature is reduced by adding glass flux in its technology for describing, and once sintered shaping, the deformation of matrix
Made moderate progress with contraction, but do not provide the data such as the specific size and deflection of exemplar.In addition, in disclosed patent and
Do not refer to problem on deformation of the rigid thermal insulation tile in coating forming process in document specially, do not refer to that rigid thermal insulation tile is being applied
Deformation control method during formable layer.But, due to deform rigid thermal insulation tile the process procedures such as follow-up assembling with
And can produce very big adverse effect during being on active service, it is therefore necessary to develop effective control method of its deformation.
The content of the invention
Present invention solves the technical problem that being：Overcome the deficiencies in the prior art, there is provided a kind of rigid thermal insulation tile applies formable layer
During deformation control method, the method process is simple, with directly by matrix material be machined to it is final needed for thickness carry out again
Apply formable layer conventional method compare, using the method after, deformation of the rigid thermal insulation tile in coating forming process can be had
Effect control.
The technical scheme is that：A kind of deformation control method in rigid thermal insulation tile coating forming process, it is described firm
Property thermal insulation tile be cuboid or parallelepiped, comprise the following steps：
(1) preparatory processing is carried out to rigid thermal insulation tile ceramic matrix material blank, makes its external form be cuboid or parallel
Hexahedron, rigid thermal insulation tile ceramic matrix material blank preparatory processing finish after length and width 100-500mm it
Between, thickness is not less than 20mm, and thickness after preparatory processing is finished is at least compared with the big 5mm of final required thickness；
(2) table is selected in the maximum surface of two areas of the rigid thermal insulation tile ceramic matrix material after preparatory processing
The coating paste that face coating has been configured, and dry；
(3) will be placed in by the matrix material of step (2) coat coating and heat treatment is sintered under high temperature, sintering heat treatment
Taken out from hot environment after finishing and be cooled to room temperature；
(4) surface of uncoated coating paste is entered in the surface maximum to two areas of rigid thermal insulation tile ceramic matrix material
Row secondary operation, final required thickness is thinned to by rigid thermal insulation tile, realizes the change in rigid thermal insulation tile coating forming process
Shape is controlled.
In the step (2), if to the surface coat coating beyond the maximum surface of two areas, in thickness direction
0-the 4/5 of coating dimension scale thickness needed for for final.
The rigid thermal insulation tile ceramic matrix material is by quartz fibre, mullite fiber, alumina fibre, silicic-boric acid aluminium
Be prepared from for raw material one or more in fiber, Zirconium oxide fibre, the rigid thermal insulation tile ceramic matrix material it is close
Degree is in 0.15-1.00g/cm3Between.
The implementation that heat treatment is sintered in the step (3) is：By the rigid thermal insulation tile ceramic base of coat coating
The maximum surface of body material area carries out single-side heating or the rigid thermal insulation tile ceramics by coat coating in the stove gate of high temperature furnace
Matrix material carries out overall heating in being put into high-temperature burner hearth.
The temperature of heat treatment is sintered in the step (3) between 800-1400 DEG C, sintering heat treatment time is many
In 5min.
In the step (2), the application pattern of coating paste is spraying or brushing or spin coating, the drying side after the completion of coating
To spontaneously dry or drying in an oven, drying temperature is room temperature -150 DEG C to formula, and the surface density of coating paste is after drying
0.01—0.25g/cm2。
The coating paste includes solid constituent and diluent, and the mass ratio of solid constituent and diluent is 1:8—8:1；
Wherein solid constituent includes borosilicate glass powder, radiation agent, sintering aid and stabilizer, and diluent is deionized water or absolute ethyl alcohol
Or the mixture of deionized water and absolute ethyl alcohol.
The mass fraction of borosilicate glass powder, radiation agent, sintering aid and stabilizer is in the solid constituent：Pyrex
Powder：10—90；Radiation agent：0.5—20；Sintering aid：0—50；Stabilizer：0-10, and borosilicate glass powder, radiation agent, sintering
The granularity of auxiliary agent and stabilizer is not less than 400 mesh.
Compared with prior art, the present invention has the advantages that：
(1) present invention first carries out painting formable layer using the larger rigid thermal insulation tile ceramic matrix material of thickness, then enters again
Row secondary operation is thinned to final required thickness, because the larger exemplar of thickness is for the warm in high temperature sintering heat treatment process
Stress resistance is relatively strong, thus can by the deformation preliminary of exemplar control the deformation of the exemplar after lesser extent, secondary operation also by
This is controlled.Compared with directly ceramic matrix material is machined to final required thickness carry out the conventional method for applying formable layer,
Deformation in coating forming process can obtain effectively control.
(2) stove of the maximum one side of the rigid thermal insulation tile ceramic matrix material area by coat coating of the invention in high temperature furnace
Doorway carries out single-side heating so that thermal stress reduction of the rigid thermal insulation tile ceramic matrix material in coating sintering process, so that
Deformation can be further reduced compared to integral sintered heat treatment.
(3) the length and width control after the present invention finishes rigid thermal insulation tile ceramic matrix material blank preparatory processing exists
Between 100-500mm, its deformation amount controlling can either be met the use requirements such as assembling in lesser extent, disclosure satisfy that again
Generally the use size for rigid thermal insulation tile is required.
(4) if the surface beyond the present invention surface maximum to two areas of rigid thermal insulation tile ceramic matrix material applies spreading
Layer, 0-the 4/5 of final required thickness is limited in the coating dimension scale of thickness direction by it, can be prevented effectively from secondary adding
Damage and destruction of the work to molded coating, after ensure that rigid thermal insulation tile shaping while control rigid thermal insulation tile deflection
Quality.
(5) density of present invention rigidity thermal insulation tile ceramic matrix material is in 0.15-1.00g/cm3Between, Deformation control effect
Fruit substantially, while be unlikely to cause coating cracking again, rigid thermal insulation tile is ensure that while control rigid thermal insulation tile deflection
Quality after shaping.
(6) present invention is by controlling the component of coating paste and applying the surface density of coating paste after number of times causes to dry
It is 0.01-0.25g/cm2, such surface density is conducive to the Deformation control of rigid thermal insulation tile in rational degree, while again
It is unlikely to that coating layer thickness is too small to be difficult to meet performance requirement or thickness is excessive causes coating cracking etc..
Brief description of the drawings
Fig. 1 is the inventive method flow chart；
Fig. 2 is the schematic diagram after rigid thermal insulation tile coat coating, wherein, 1 is upper table finishing coat, and 2 is coating side；
Fig. 3 is the schematic diagram in rigid thermal insulation tile single-side heating sintering process, wherein, 3 is high temperature furnace, and 4 is heat-insulated for rigidity
Watt；
Fig. 4 is the schematic diagram during rigid thermal insulation tile entirety heat-agglomerating, wherein, 3 is high temperature furnace, and 4 is heat-insulated for rigidity
Watt；
Fig. 5 is the deformation schematic diagram of rigid thermal insulation tile；
Fig. 6 is rigid thermal insulation tile deflection instrumentation plan.
Specific embodiment
The present invention proposes the deformation control method in a kind of rigid thermal insulation tile coating forming process, as shown in figure 1, specifically
Step is as follows：
1. rigid thermal insulation tile ceramic matrix material blank processing
Using milling machine or grinding machine by the preparatory processing of rigid thermal insulation tile ceramic matrix material blank turn into rule cuboid or
Parallelepiped, between 100-500mm, thickness is not less than 20mm to length and width.Rigid thermal insulation tile ceramic matrix material
Blank preparatory processing finish after thickness at least compared with the big 5mm of thickness needed for final.Rigid thermal insulation tile matrix material is by quartzy fine
One or more fiber in dimension, mullite fiber, alumina fibre, silicic-boric acid aluminum fiber, Zirconium oxide fibre is main former material
The rigid heat-barrier material that material is prepared from.The density of rigid thermal insulation tile ceramic matrix material is in 0.15-1.00g/cm3Between.This
Plant density and cause Deformation control effect substantially, while be unlikely to cause coating cracking again.
2. coating paste is applied and dried
The coating paste that will have been configured using modes such as spraying, brushing or spin coatings is coated on rigid thermal insulation tile ceramic base body surface
Face, is then spontaneously dried or is put into oven drying.Coating number of times is 1 time or more than 1 time.Wherein coating paste includes solid
The mass ratio of component and diluent, solid constituent and diluent is 1:8—8:1, solid constituent includes borosilicate glass powder, radiation
Agent, sintering aid and stabilizer, diluent are the mixture of deionized water or absolute ethyl alcohol or deionized water and absolute ethyl alcohol.
Coating paste collocation method is：Using mechanical agitation or ball milling, by borosilicate glass powder, radiation agent, sintering aid, steady
Determine agent and diluent is mixed, mixing time is no less than 30min.Wherein borosilicate glass powder, radiation agent, sintering aid and stabilizer
Mass fraction be：Borosilicate glass powder：10—90；Radiation agent：0.5—20；Sintering aid：0—50；Stabilizer：0—10.And
The granularity of borosilicate glass powder, radiation agent, sintering aid and stabilizer is not less than 400 mesh.Borosilicate glass powder is by silica, oxidation
Boron, aluminum oxide and impurity are constituted, and mass percent is：Silica 65-97%, boron oxide 2-30%, aluminum oxide 1-5%, its
Remaining is impurity.Radiation agent is molybdenum disilicide, carborundum, chromium oxide, nickel oxide, cobalt oxide, nickel chromium triangle spinelle, silicon nitride, four boron
SiClx, silicon hexaboride, tantalum silicide, zirconium boride, the mixture of one or more in iron, chromium, the sinter of cobalt.Sintering aid
It is the mixture of one or more in boron carbide, boron nitride, boron oxide, four silicon borides, silicon hexaboride.Stabilizer be clay or
The mixture of methylcellulose or both.
The surface of rigid thermal insulation tile ceramic matrix material coat coating is between 1-5.If rigid thermal insulation tile ceramic matrix
The upper and lower surface of material is the maximum face of area, and side is the relatively small face of area.As shown in Fig. 2 rigid thermal insulation tile ceramics
At least 1, the surface of coating base material coating face is the maximum face (such as upper surface) of area, and remaining is side.When in rigidity
During the side coat coating of thermal insulation tile ceramic matrix material, the thickness needed for the coating dimension scale of thickness direction is for final
Between 0-4/5.1 is upper table finishing coat in wherein Fig. 2, and 2 is coating side.
The drying temperature of rigid thermal insulation tile coat coating slurry is room temperature -150 DEG C.Drying time is no less than 30min.Just
Property thermal insulation tile coating paste to dry density below be 0.01-0.25g/cm2。
3. coating sintering heat treatment
The rigid thermal insulation tile upper surface of the coat coating that drying is finished faces the stove gate of high temperature sintering furnace (such as Fig. 3 institutes
Show) or it is overall be put into (as shown in Figure 4) in high-temperature burner hearth and carry out the high temperature sintering heat treatment of certain hour, then taking-up nature is cold
But to room temperature.The temperature of high temperature sintering heat treatment is between 800-1400 DEG C.High temperature sintering heat treatment time is no less than 5min.
4. the rigid thermal insulation tile processing of molded coating
The maximum surface of area that application layer is not coated with to the rigid thermal insulation tile of molded coating using milling machine or grinding machine (if
In upper surface coat coating, then in lower surface) carry out thickness needed for secondary operation is thinned to finally.
The present invention also proposes a kind of deflection measuring method of rigid thermal insulation tile, as shown in Figure 5 and Figure 6, using vernier calliper
Chi 1 and 2 tests EG (cross direction 1 long), FH (cross direction 2 long), AC (diagonal 1) and BD (diagonal 2) side respectively
To deflection (see Fig. 5).Wherein, E, F, G, H are respectively tetra- stupefied central points of AB, BC, CD and DA, and O is rigid thermal insulation tile
The central point of coat side.By taking the measurement of EG Direction distortions as an example (see Fig. 6), slide measure 1 is placed in rigid thermal insulation tile coat side, adopted
Measured respectively at E, O and G tri- apart from the upper end of slide measure 1 apart from h with slide measure 2EE', hOO' and hGG', then cross direction long 1
Maximum deformation quantity (hereinafter referred to as " deflection ") be hOO’-(hEE’+hGG’)/2.FH directions, AC directions, BD directions and EG directions
Measuring method is identical, respectively obtains cross direction long 2, diagonal 1, the maximum deformation quantity of diagonal 2.Cross direction long and
The average maximum deformation quantity (hereinafter referred to as " average deformation amount ") of diagonal is the deflection average value in its direction 1 and 2.
The certainty of measurement of wherein slide measure 1 and 2 is 0.02mm.
Measuring method of the invention quantitatively characterizes the deflection of product.
Embodiment 1：
The thickness requirement of exemplar is 10mm, and high temperature sintering heat treatment uses integral sintered heat treatment mode.
Oxidized fibre and the composite fibre of 20% mullite fiber of the rigid thermal insulation tile ceramic matrix material using 80%
It is prepared from, density is 0.33g/cm3, exemplar of the preparatory processing as 200 × 200 × 20mm, each component in coating paste
Mass ratio is：Borosilicate glass powder：Boron oxide：Tantalum silicide：Clay：Water=60:30:8:2:500, using ball mill mixing 3h,
The upper surface (upper and lower surface area is maximum) and side of matrix material, and side coating 6mm are coated in through coating, are sprayed and is dried
The coating surface density for obtaining afterwards is 0.025g/cm2, 1150 DEG C carry out integral sintered heat treatment 15min in high-temperature burner hearth, cooling
To room temperature, the rigid thermal insulation tile of molded coating is machined to by thickness 10mm using milling machine.Six are made according to the method described above
Product, using deflection measuring method of the invention, taking six products carries out deflection measure, and calculates six product length and width sides
To the average value with the average deformation amount of diagonal, respectively 188 μm and 343 μm.By comparison, directly by matrix material
Be machined to it is final needed for thickness carry out painting formable layer again, the average deformation amount of six product cross directions long and diagonal it is flat
Average is respectively 360 μm and 623 μm.
Embodiment 2：
The thickness requirement of exemplar is 15mm, and high temperature sintering heat treatment uses integral sintered heat treatment mode.
Oxidized fibre and the composite fibre of 20% mullite fiber of the rigid thermal insulation tile ceramic matrix material using 80%
It is prepared from, density is 0.33g/cm3, the exemplar of 200 × 200 × 20mm is processed into, the matter of each component in coating paste
Measuring ratio is：Borosilicate glass powder：Boron oxide：Tantalum silicide：Clay：Water=60:30:8:2:500, using ball mill mixing 3h, warp
Coating is coated in the upper surface (upper and lower surface area is maximum) and side of matrix material, and side coating 10mm, sprays and dries
The coating surface density for obtaining afterwards is 0.025g/cm2, 1150 DEG C carry out integral sintered heat treatment 15min in high-temperature burner hearth, cooling
To room temperature, thickness 15mm is finally machined to using milling machine.Six products are made according to the method described above, using deformation of the invention
Measuring method, taking six products carries out deflection measure, and calculates the average of six product cross directions long and diagonal
The average value of deflection, respectively 178 μm and 256 μm.By comparison, matrix material is directly machined to final required thickness again
Carry out painting formable layer, the average value of the average deformation amount of six product cross directions long and diagonal is respectively 197 μm and 338
μm。
Embodiment 3：
The thickness requirement of exemplar is 10mm, and high temperature sintering heat treatment uses single-side heating processing mode.
Oxidized fibre and the composite fibre of 20% mullite fiber of the rigid thermal insulation tile ceramic matrix material using 80%
It is prepared from, density is 0.33g/cm3, the exemplar of 200 × 200 × 20mm is processed into, the matter of each component in coating paste
Measuring ratio is：Borosilicate glass powder：Boron oxide：Tantalum silicide：Clay：Water=60:30:8:2:500, using ball mill mixing 3h, warp
Coating is coated in the upper surface (upper and lower surface area is maximum) and side of matrix material, and side coating 6mm, after spraying and drying
The coating surface density of acquisition is 0.025g/cm2, by upper surface in 1150 DEG C of high temperature furnace doorway sintering heat treatment 15min, it is cooled to
After room temperature, thickness 10mm is finally machined to using milling machine.Six products are made according to the method described above, using deflection of the invention
Measuring method, taking six products carries out deflection measure, and calculates the average change of six product cross directions long and diagonal
The average value of shape amount, respectively 157 μm and 303 μm.By comparison, matrix material directly is machined into final required thickness to enter again
The average value difference of the average deformation amount of the integral sintered heat-treating profiled coating of row, six product cross directions long and diagonal
It is 360 μm and 623 μm.
From above-described embodiment as can be seen that using the method for the present invention, and directly ceramic matrix material is machined to finally
The conventional method that required thickness apply formable layer is compared, and the deformation in coating forming process can obtain effectively control.And pass through
The contrast of embodiment 1 and 3 can be seen that single-side heating and can further reduce deformation compared to integral sintered heat treatment.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (8)
1. a kind of deformation control method of rigid thermal insulation tile in coating forming process, the rigid thermal insulation tile is parallel six face
Body, it is characterised in that comprise the following steps：
(1) preparatory processing is carried out to rigid thermal insulation tile ceramic matrix material blank, makes its external form for parallelepiped, rigidity is heat-insulated
Watt ceramic matrix material blank preparatory processing finish after length and width between 100-500mm, thickness is not less than
20mm, and thickness after preparatory processing is finished is at least compared with the big 5mm of thickness needed for final；
(2) one surface of selection applies in the maximum surface of two areas of the rigid thermal insulation tile ceramic matrix material after preparatory processing
The coating paste for having configured is applied, and is dried；
(3) will be placed in by the matrix material of step (2) coat coating and heat treatment is sintered under high temperature, sintering heat treatment is finished
Taken out from hot environment afterwards and be cooled to room temperature；
(4) surface of uncoated coating paste carries out two in the surface maximum to two areas of rigid thermal insulation tile ceramic matrix material
Secondary processing, final required thickness is thinned to by rigid thermal insulation tile, realizes the deformation control in rigid thermal insulation tile coating forming process
System.
2. a kind of deformation control method of the rigid thermal insulation tile according to claim 1 in coating forming process, its feature
It is：In the step (2), if to the surface coat coating beyond the maximum surface of two areas, in the painting of thickness direction
0-the 4/5 of deposited dimension scale thickness needed for for final.
3. a kind of deformation control method of the rigid thermal insulation tile according to claim 1 in coating forming process, its feature
It is：The rigid thermal insulation tile ceramic matrix material is fine by quartz fibre, mullite fiber, alumina fibre, silicic-boric acid aluminium
Dimension, it is prepared from for raw material for one or more in Zirconium oxide fibre, the density of the rigid thermal insulation tile ceramic matrix material
In 0.15-1.00g/cm3Between.
4. a kind of deformation control method of the rigid thermal insulation tile according to claim 1 in coating forming process, its feature
It is：The implementation that heat treatment is sintered in the step (3) is：By the rigid thermal insulation tile ceramic matrix material of coat coating
The maximum surface of charge level product carries out single-side heating or the rigid thermal insulation tile ceramic matrix by coat coating in the stove gate of high temperature furnace
Material carries out overall heating in being put into high-temperature burner hearth.
5. a kind of deformation control method of the rigid thermal insulation tile according to claim 1 in coating forming process, its feature
It is：The temperature of heat treatment is sintered in the step (3) between 800-1400 DEG C, sintering heat treatment time is no less than
5min。
6. a kind of deformation control method of the rigid thermal insulation tile according to claim 1 in coating forming process, its feature
It is：In the step (2), the application pattern of coating paste is spraying or brushing or spin coating, the drying mode after the completion of coating
To spontaneously dry or drying in an oven, drying temperature is room temperature-150 DEG C, after drying the surface density of coating paste for 0.01-
0.25g/cm2。
7. a kind of deformation control method of the rigid thermal insulation tile according to claim 6 in coating forming process, its feature
It is：The coating paste includes solid constituent and diluent, and the mass ratio of solid constituent and diluent is 1:8—8:1；Wherein
Solid constituent includes borosilicate glass powder, radiation agent, sintering aid and stabilizer, and diluent is deionized water or absolute ethyl alcohol or goes
The mixture of ionized water and absolute ethyl alcohol.
8. a kind of deformation control method of the rigid thermal insulation tile according to claim 7 in coating forming process, its feature
It is：The mass fraction of borosilicate glass powder, radiation agent, sintering aid and stabilizer is in the solid constituent：Borosilicate glass powder：
10—90；Radiation agent：0.5—20；Sintering aid：0—50；Stabilizer：0-10, and borosilicate glass powder, radiation agent, sintering help
The granularity of agent and stabilizer is not less than 400 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535953.2A CN105130500B (en) | 2015-08-27 | 2015-08-27 | A kind of deformation control method in rigid thermal insulation tile coating forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535953.2A CN105130500B (en) | 2015-08-27 | 2015-08-27 | A kind of deformation control method in rigid thermal insulation tile coating forming process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105130500A CN105130500A (en) | 2015-12-09 |
| CN105130500B true CN105130500B (en) | 2017-06-27 |
Family
ID=54716145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510535953.2A Active CN105130500B (en) | 2015-08-27 | 2015-08-27 | A kind of deformation control method in rigid thermal insulation tile coating forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130500B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106083115B (en) * | 2016-06-12 | 2019-07-02 | 山东工业陶瓷研究设计院有限公司 | The thermal insulation tile coating and preparation method thereof of resistance to 1500 DEG C of high temperature |
| CN108467260B (en) * | 2016-09-14 | 2020-10-27 | 航天特种材料及工艺技术研究所 | Surface-toughened alumina fiber rigid heat-insulating tile multilayer composite material, coating composition, preparation method and application thereof |
| CN107266086A (en) * | 2017-06-13 | 2017-10-20 | 长兴华悦耐火材料厂 | A kind of steel fiber refractories |
| CN107500789A (en) * | 2017-08-24 | 2017-12-22 | 浙江科屹耐火材料有限公司 | A kind of mullite pouring material and preparation method thereof |
| CN107603286B (en) * | 2017-09-11 | 2019-08-09 | 山东工业陶瓷研究设计院有限公司 | Rigid thermal insulation tile coating of 1500 DEG C of unburned heatproof and preparation method thereof |
| CN114517022B (en) * | 2022-01-27 | 2023-02-10 | 上海联净电子科技有限公司 | Wear-resistant anti-adhesion coating and preparation method and application thereof |
| CN116444297B (en) * | 2023-06-12 | 2023-08-25 | 烟台奥森制动材料有限公司 | Refining Process of Silicon-Carbon Composite Brake Disc |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079082A (en) * | 1989-01-18 | 1992-01-07 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Toughened uni-piece fibrous insulation |
| CN101691138B (en) * | 2009-08-28 | 2012-05-30 | 中材高新材料股份有限公司 | Method for preparing heat insulation tile of shuttle |
| CN104842217B (en) * | 2015-05-05 | 2017-03-01 | 山东工业陶瓷研究设计院有限公司 | Sky and space plane ceramic fibre rigidity thermal insulation tile precision machining method |
-
2015
- 2015-08-27 CN CN201510535953.2A patent/CN105130500B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105130500A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105130500B (en) | A kind of deformation control method in rigid thermal insulation tile coating forming process | |
| CN108383391B (en) | Surface-toughened alumina fiber rigid heat-insulating tile multilayer composite material, coating composition, preparation method and application thereof | |
| CN107935634A (en) | A kind of refractory metal compound high-temperature oxidation resistant coating and preparation method thereof | |
| CN103936465B (en) | A kind of carbon/carbon composite material oxidation-proof coating and preparation method thereof | |
| CN105198492A (en) | Oxidation-resistant coating and preparation method thereof | |
| Wang et al. | Effect of glass phase content on structure and properties of gradient MoSi2–BaO–Al2O3–SiO2 coating for porous fibrous insulations | |
| CN104030570B (en) | A kind of nickel-base alloy superhigh temperature enamel coating and preparation method thereof | |
| CN108048778A (en) | Lamellar composite silicide/glass ceramics high-temperature oxidation resistant coating and preparation method thereof | |
| CN107573731A (en) | High-temperature infrared radiation coating and preparation method and application thereof | |
| CN106065204A (en) | A kind of energy-saving industrial furnace | |
| CN110220382A (en) | A kind of Energy saving chamber of furnace and preparation method thereof with air heat insulation and heat radiation reflecting layer | |
| CN105948748A (en) | Silicon-boron-carbon-nitrogen-zirconium ceramic composite material and preparation method thereof | |
| CN107954745A (en) | Corrosion-resistant micro-pore mullite light fire brick and preparation method thereof | |
| US5534300A (en) | Two-layer high temperature coating on a ceramic substrate, and process for obtaining same | |
| CN110903074A (en) | High-temperature oxidation-resistant coating on surface of silicon carbide substrate and preparation method thereof | |
| CN105314963A (en) | Ceramic slurry capable of effectively increasing strength and tenacity of Longquan celadon products and blank and product prepared from ceramic slurry | |
| CN104276838B (en) | Pottery vitrified method for sealing two with metal | |
| Tao et al. | Anti-oxidation of emissing agents in TaSi2–MoSi2-borosilicate glass high emissivity coating | |
| CN106699212A (en) | Compound ceramic substrate and preparation method thereof | |
| CN102604466B (en) | Black-increasing agent for high-temperature infrared-radiation energy-saving coating and preparation method of black-increasing agent | |
| US5518778A (en) | Single-layer high temperature coating on a ceramic substrate and its production | |
| CN108516807B (en) | Preparation method of alumina ceramic for automobile pressure sensor | |
| CN104276839A (en) | Sealing method for ceramic vitrification | |
| CN106588043B (en) | A kind of high temperature resistance high heat conduction infra-red radiation saggar composite material and preparation method | |
| CN102702808B (en) | Infrared radiation coating capable of forming coating with low conductivity factor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |