CN110436964A - A method of repairing quartzy composite ceramics surface crater - Google Patents
A method of repairing quartzy composite ceramics surface crater Download PDFInfo
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- CN110436964A CN110436964A CN201910707856.5A CN201910707856A CN110436964A CN 110436964 A CN110436964 A CN 110436964A CN 201910707856 A CN201910707856 A CN 201910707856A CN 110436964 A CN110436964 A CN 110436964A
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- composite ceramics
- quartzy
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- repairing
- ceramics surface
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
Abstract
The invention discloses a kind of methods for repairing quartzy composite ceramics surface crater, it the use of quartzy chopped strand and silica solution is raw material, prepare ceramics repairing mixture, the cured method of vacuum bag pressurized, heated is used to improve the bond strength at repairing position and ceramic body, completes the repairing of quartzy composite ceramics cover surface crater.Since repairing materials are identical as quartzy composite ceramics, repairing position and ceramic body have almost the same ablation property, dielectric properties, linear expansion coefficient, and color difference problem is not present, and repair efficiency is good.
Description
Technical field
The invention belongs to technical field of ceramic material, and in particular to a kind of side for repairing quartzy composite ceramics surface crater
Method.
Background technique
Quartzy composite ceramics have the characteristics that density is low, intensity is high, wave transparent is functional, obtain extensively in aerospace field
General application, quartzy composite ceramics have become the common used material system of the products such as antenna house, antenna window.Since quartz is compound
Ceramics are the complexs of rigid matrix Yu relative toughness fiber, belong to fragile material, and material attribute itself causes producing and processing
It is easy the problems such as fiber is scaling-off, matrix falls off in the process, macroscopical concave point pit is shown as on product, influences the apparent matter of product
Amount, influences product electric performance stablity at loss strength character.Quartz composite ceramics repairing at present is often used all kinds of ceramics repairings
Glue carries out hot setting after filling ceramic pit.Although ceramic surface pit can be filled up smooth by this method, due to ceramics
There are ablation property, wave transparent performance, thermal expansion coefficients for repair sheets material system different problems, repairing position and ceramic body not
The problems such as matching, and usually there is color difference, influence ceramic apparent mass.
Summary of the invention
Background technique there are aiming at the problem that, the purpose of the present invention is to provide a kind of repairing position and ontology have it is basic
Consistent ablation property, dielectric properties, and there is no the methods of the quartzy composite ceramics surface crater of the repairing of color difference problem.
In order to achieve the above objectives, the method for the quartzy composite ceramics surface crater of repairing that the present invention designs, including once walk
It is rapid:
S1, quartzy composite ceramics surface to be repaired is dry with after cleaning out, being put into drying box, it is gradually heated to
150 DEG C, 120min~150min is then kept the temperature, is taken out after cooling to room temperature with the furnace；
S2 takes appropriate quartzy chopped strand to be put into container, by 35% solid content silica solution and quartzy chopped strand quality
Silica solution is added than 1:2~1:3, stirs evenly；
The mixture prepared in S2 is filled in the pit that quartzy composite ceramics to be repaired need to repair, while filling out by S3
Benefit side is pressed into no silica solution and obviously overflows；
The quartzy composite ceramics filled up are put into vacuum bag by S4, and vacuum pump pressure is set as -60kPa~-80kPa,
Vacuum bag is vacuumized, pressure maintaining 60min~120min；
Vacuum bag in S4 is put into drying box by S5, and drying box heats while persistently vacuumizing to vacuum bag,
And 100 DEG C are gradually heated to, 60min~90min is then kept the temperature, cools to room temperature with the furnace, vacuum bag is opened and takes out in vacuum bag
Quartzy composite ceramics；
S6 is polished with the filling for being higher by quartzy composite ceramics surface of sand paper pair, keeps it with ceramic surface
It is smooth.
Preferably, it after being cleaned out in S1 using dehydrated alcohol, is put into electric drying oven with forced convection dry.
Preferably, in S1,150 DEG C are gradually increased to by room temperature in 50min~60min.
Preferably, in S2, the length of quartzy chopped strand is 2mm~4mm.
Preferably, in S3, it is desirable that the mixture for repairing position is 2mm~4mm higher than ceramic pit edge.
Preferably, in S5, electric drying oven with forced convection is selected to be gradually heated to 100 DEG C by room temperature in 30min~40min.
Preferably, further comprising the steps of between S5 and S6:
Quartzy composite ceramics in S5 are put into drying box, are gradually heated to 100 DEG C, after keeping the temperature a period of time, then by
150 DEG C are gradually warming up to, furnace cooling after 30min~60min is kept the temperature, taking-up is cooled to room temperature and carries out S6 again.
It is further preferred that selecting electric drying oven with forced convection, 100 DEG C are gradually heated in 30min~40min, heat preservation
30min~60min, then 150 DEG C are gradually heated in 20min~30min.
The beneficial effects of the present invention are: the present invention, which cleans out quartzy composite ceramics cover with dehydrated alcohol, is placed on baking oven
Middle drying configures repairing mixture with quartzy chopped strand and silica solution, is filled in ceramics to remove the impurity of ceramic surface
In surface crater, cooperate the cured method of vacuum bag pressurized, heated, completes the repairing of quartzy composite ceramics surface crater.The present invention
The use of quartzy chopped strand and silica solution is raw material, prepares ceramics repairing mixture, it is cured using vacuum bag pressurized, heated
Method repairs the bond strength at position and ceramic body to improve, and completes the repairing of quartzy composite ceramics cover surface crater.Due to
It is identical as quartzy composite ceramics to repair materials, repairing position and ceramic body with almost the same ablation property, dielectric properties,
Linear expansion coefficient, and color difference problem is not present, repair efficiency is good.Method for repairing and mending simple process of the invention, repairing position
There is almost the same ablation property, dielectric properties with ceramic body, and color difference problem is not present, repair efficiency is good.
Specific embodiment
It is (including preferred to technical solution of the present invention below by the mode for enumerating some alternative embodiments of the invention
Technical solution) it is described in further detail.Obviously, described embodiment is only a part of the embodiments of the present invention, and
The embodiment being not all of.Based on the embodiment of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Embodiment 1:
1) it after cleaning out on quartzy composite ceramics surface with dehydrated alcohol, is put into electric drying oven with forced convection, in 50min
150 DEG C are inside gradually heated to, 120min is kept the temperature, is taken out after cooling to room temperature with the furnace；
2) appropriate 2mm quartz chopped strand is taken to be put into container, by 35% solid content silica solution and quartzy chopped strand matter
Silica solution is added than 1:2 in amount, stirs evenly；
3) 2) the middle mixture for preparing is filled in the pit that quartzy composite ceramics need to repair, is pressed into when filling up
There is no silica solution obviously to overflow, it is desirable that the mixture for repairing position is higher by 2mm than ceramic pit edge；
4) the quartzy composite ceramics filled up are put into vacuum bag, vacuum pump pressure is set as -60kPa, to vacuum bag
It is vacuumized, pressure maintaining 60min；
5) quartzy composite ceramics are put into electric drying oven with forced convection, are heated when vacuumizing, is gradually warmed up in 30min
To 100 DEG C, 60min is kept the temperature, cools to room temperature with the furnace, vacuum bag is opened and takes out quartzy composite ceramics；
6) quartzy composite ceramics are put into electric drying oven with forced convection, 100 DEG C are gradually heated in 30min, heat preservation
30min, then 150 DEG C are gradually heated in 20min, furnace cooling after 30min is kept the temperature, taking-up is cooled to room temperature；
7) it is polished with sand paper the filling for being higher by quartzy composite ceramics surface, it is made to keep flat with ceramic surface
It is whole；
After implementing by the above process, material property is as shown in the table:
Embodiment 2:
1) it after cleaning out on quartzy composite ceramics surface with dehydrated alcohol, is put into electric drying oven with forced convection, in 60min
150 DEG C are inside gradually heated to, 150min is kept the temperature, is taken out after cooling to room temperature with the furnace；
2) appropriate 4mm quartz chopped strand is taken to be put into container, by 35% solid content silica solution and quartzy chopped strand matter
Silica solution is added than 1:3 in amount, stirs evenly；
3) 2) the middle mixture for preparing is filled in the pit that quartzy composite ceramics need to repair, is pressed into when filling up
There is no silica solution obviously to overflow, it is desirable that the mixture for repairing position is higher by 2mm than ceramic pit edge；
4) the quartzy composite ceramics filled up are put into vacuum bag, vacuum pump pressure is set as -80kPa, to vacuum bag
It is vacuumized, pressure maintaining 120min；
5) quartzy composite ceramics are put into electric drying oven with forced convection, are heated when vacuumizing, is gradually warmed up in 40min
To 100 DEG C, 90min is kept the temperature, cools to room temperature with the furnace, vacuum bag is opened and takes out ceramics；
6) quartzy composite ceramics are put into electric drying oven with forced convection, 100 DEG C are gradually heated in 40min, heat preservation
Then 60min is gradually heated to 150 DEG C in 30min again, keep the temperature furnace cooling after 60min, be cooled to room temperature taking-up；
7) it is polished with sand paper the filling for being higher by ceramic surface, it is made to keep smooth with ceramic surface；
After implementing by the above process, material property is as shown in the table:
Embodiment 3:
1) it after cleaning out on quartzy composite ceramics surface with dehydrated alcohol, is put into electric drying oven with forced convection, in 55min
150 DEG C are inside gradually heated to, 135min is kept the temperature, is taken out after cooling to room temperature with the furnace；
2) appropriate 3mm quartz chopped strand is taken to be put into container, by 35% solid content silica solution and quartzy chopped strand matter
Silica solution is added than 1:1.5 in amount, stirs evenly；
3) 2) the middle mixture for preparing is filled in the pit that quartzy composite ceramics need to repair, is pressed into when filling up
There is no silica solution obviously to overflow, it is desirable that the mixture for repairing position is higher by 2mm than ceramic pit edge；
4) the quartzy composite ceramics filled up are put into vacuum bag, vacuum pump pressure is set as -70kPa, to vacuum bag
It is vacuumized, pressure maintaining 90min；
5) quartzy composite ceramics are put into electric drying oven with forced convection, are heated when vacuumizing, is gradually warmed up in 35min
To 100 DEG C, 75min is kept the temperature, cools to room temperature with the furnace, vacuum bag is opened and takes out ceramics；
6) quartzy composite ceramics are put into electric drying oven with forced convection, 100 DEG C are gradually heated in 35min, heat preservation
Then 45min is gradually heated to 150 DEG C in 25min again, keep the temperature furnace cooling after 45min, be cooled to room temperature taking-up；
7) it is polished with sand paper the filling for being higher by ceramic surface, it is made to keep smooth with ceramic surface；
After implementing by the above process, material property is as shown in the table:
It should be readily apparent to one skilled in the art that the above is merely preferred embodiments of the present invention, not to limit this hair
Bright, all any modification, combination, replacement, improvement etc. made under the spirit and principles in the present invention are all contained in guarantor of the invention
Within the scope of shield.
Claims (8)
1. a kind of method of composite ceramics surface crater, comprising the following steps:
S1, quartzy composite ceramics surface to be repaired is dry with after cleaning out, being put into drying box, it is gradually heated to 150
DEG C, 120min~150min is then kept the temperature, is taken out after cooling to room temperature with the furnace；
S2 takes appropriate quartzy chopped strand to be put into container, by 35% solid content silica solution and quartzy chopped strand mass ratio 1:2
Silica solution is added in~1:3, stirs evenly；
The mixture prepared in S2 is filled in the pit that quartzy composite ceramics to be repaired need to repair, when filling up by S3
No silica solution is pressed into obviously to overflow；
The quartzy composite ceramics filled up are put into vacuum bag by S4, and vacuum pump pressure is set as -60kPa~-80kPa, to true
Empty bag is vacuumized, pressure maintaining 60min~120min；
Vacuum bag in S4 is put into drying box by S5, and drying box heats while persistently vacuumizing to vacuum bag, and by
100 DEG C are gradually warming up to, 60min~90min is then kept the temperature, cools to room temperature with the furnace, opens the stone in vacuum bag taking-up vacuum bag
English composite ceramics；
S6 is polished with the filling for being higher by quartzy composite ceramics surface of sand paper pair, it is made to keep smooth with ceramic surface.
2. the method for composite ceramics surface crater according to claim 1, it is characterised in that: clear using dehydrated alcohol in S1
After reason is clean, it is put into electric drying oven with forced convection dry.
3. the method for composite ceramics surface crater according to claim 1 or 2, it is characterised in that: in S1,50min~
60min is gradually increased to 150 DEG C by room temperature.
4. the method for composite ceramics surface crater according to claim 1, it is characterised in that: in S2, quartzy chopped strand
Length be 2mm~4mm.
5. the method for composite ceramics surface crater according to claim 1, it is characterised in that: in S3, it is desirable that repairing position
Mixture it is 2mm~4mm higher than ceramic pit edge.
6. the method for composite ceramics surface crater according to claim 1, it is characterised in that: in S5, select electric heating air blast
Drying box is gradually heated to 100 DEG C by room temperature in 30min~40min.
7. the method for composite ceramics surface crater according to claim 1 or 6, it is characterised in that: between S5 and S6 also
The following steps are included:
Quartzy composite ceramics in S5 are put into drying box, are gradually heated to 100 DEG C, after keeping the temperature a period of time, then are gradually risen
Temperature keeps the temperature furnace cooling after 30min~60min to 150 DEG C, is cooled to room temperature taking-up and carries out S6 again.
8. the method for composite ceramics surface crater according to claim 7, it is characterised in that: select electric heating forced air drying
Case is gradually heated to 100 DEG C in 30min~40min, keeps the temperature 30min~60min, then gradually rise in 20min~30min
Temperature is to 150 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111962899A (en) * | 2020-07-14 | 2020-11-20 | 永旺永乐(江苏)物业服务有限公司 | Squat pit repairing process |
| CN112500181A (en) * | 2020-12-18 | 2021-03-16 | 湖北三江航天江北机械工程有限公司 | Silicon oxide short fiber die-pressed ceramic antenna window composite material and preparation method thereof |
| CN113800953A (en) * | 2021-08-30 | 2021-12-17 | 湖北三江航天江北机械工程有限公司 | Method for repairing pit on surface of window of quartz composite ceramic antenna |
| CN113999056A (en) * | 2021-10-29 | 2022-02-01 | 中国人民解放军国防科技大学 | Method for repairing continuous oxide fiber reinforced oxide ceramic matrix composite |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962899A (en) * | 2020-07-14 | 2020-11-20 | 永旺永乐(江苏)物业服务有限公司 | Squat pit repairing process |
| CN112500181A (en) * | 2020-12-18 | 2021-03-16 | 湖北三江航天江北机械工程有限公司 | Silicon oxide short fiber die-pressed ceramic antenna window composite material and preparation method thereof |
| CN113800953A (en) * | 2021-08-30 | 2021-12-17 | 湖北三江航天江北机械工程有限公司 | Method for repairing pit on surface of window of quartz composite ceramic antenna |
| CN113999056A (en) * | 2021-10-29 | 2022-02-01 | 中国人民解放军国防科技大学 | Method for repairing continuous oxide fiber reinforced oxide ceramic matrix composite |
| CN113999056B (en) * | 2021-10-29 | 2023-01-03 | 中国人民解放军国防科技大学 | Method for repairing continuous oxide fiber reinforced oxide ceramic matrix composite |
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Application publication date: 20191112 |