CN110563470A - High-strength explosion-proof spray coating and preparation method thereof - Google Patents
High-strength explosion-proof spray coating and preparation method thereof Download PDFInfo
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- CN110563470A CN110563470A CN201910783073.5A CN201910783073A CN110563470A CN 110563470 A CN110563470 A CN 110563470A CN 201910783073 A CN201910783073 A CN 201910783073A CN 110563470 A CN110563470 A CN 110563470A
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- 238000005507 spraying Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004113 Sepiolite Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 15
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 14
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 239000010431 corundum Substances 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 238000004880 explosion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The invention belongs to the technical field of spray coatings, and particularly relates to an explosion-proof spray coating with high-temperature strength, good high-temperature wear resistance, high adhesive force, high cohesive force and high strength and a preparation method thereof. The invention comprises the following components in percentage by weight: 65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metal silicon, 0.9-1.2% of metal aluminum, 0.8-1.2% of explosion-proof fiber, 7-9% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate. The invention aims to provide a high-strength explosion-proof spray coating which is anti-burst at high temperature and good in heat conductivity.
Description
Technical Field
the invention belongs to the technical field of spray coatings, and particularly relates to an explosion-proof spray coating with high-temperature strength, good high-temperature wear resistance, high adhesive force, high cohesive force and high strength and a preparation method thereof.
background
The spray paint is an unshaped refractory material which is constructed by a mechanical spraying method by using a pneumatic tool. Consists of refractory aggregate, powder and a bonding agent (or an additive). The sprayed material is compacted by repeated and continuous impact of the cement, aggregate and other composition materials in the spraying process, so that the sprayed layer has better density and mechanical strength. The existing explosion-proof spray coating has low adhesive force, low high-temperature strength, poor high-temperature wear resistance, low thermal conductivity, great waste and short service life.
Disclosure of Invention
the invention aims to provide a high-strength anti-explosion spray coating with anti-explosion performance at high temperature and good heat conductivity and a preparation method thereof.
Based on the purpose, the invention adopts the following technical scheme:
a high-strength explosion-proof spray coating comprises the following components in percentage by weight:
65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metal silicon, 0.9-1.2% of metal aluminum, 0.8-1.2% of explosion-proof fiber, 7-9% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
Preferably, the particle size of the α -alumina powder is 2500 mesh or more.
A preparation method of a high-strength explosion-proof spray coating comprises the following steps:
s1: fully mixing brown corundum and sepiolite powder to obtain a mixture 1 for later use;
s2: fully mixing pure calcium aluminate 75 cement with alumina powder to serve as a mixture 2 for later use;
S3: mixing Guangxi white mud, metal silicon, metal aluminum, explosion-proof fiber and sodium tripolyphosphate fully to obtain a mixture 3 for later use;
s4: and adding the mixture 1 into a stirrer, mixing and grinding for 5 minutes, adding the mixture 2, mixing and grinding for 5 minutes, and finally adding the mixture 3, mixing and grinding for 15 minutes to obtain a finished product.
Advantageous effects
the brown corundum component has the advantages of low water absorption, good high-temperature performance, large volume density and high strength, the pure calcium aluminate cement can increase the medium-high temperature strength, the Guangxi white mud can increase the medium-high temperature strength and improve the adhesive force, the metal aluminum has stronger oxidation resistance, anti-explosion performance and water reducing performance, the metal silicon has stronger oxidation resistance, the alpha alumina powder uses nanoscale ultrafine powder with more than 2500 meshes, the bonding performance is good, the high-temperature-resistant connection effect is realized at high temperature, the anti-explosion fiber has good anti-explosion performance, and the sepiolite powder has good bonding performance, connection performance and bonding performance. The components are matched with each other and have synergistic effect, and the prepared spray coating has the advantages of high-temperature strength, good high-temperature wear resistance, high adhesive force, large cohesive force, anti-bursting property at high temperature and good heat conductivity, and can greatly prolong the service life of products. Detailed description of the invention
In the following examples, brown alumina is made from Sanxia capacitor corundum Co., Ltd, Guangxi white mud is made from Guangxi Weiluo mining Co., Ltd, pure calcium aluminate cement is made from Tianjin Claf-based pure calcium aluminate 75 cement, silicon metal is made from Anyang Dingxing metallurgy Co., Ltd, aluminum metal is made from Luoyang discoverer aluminum Co., Ltd, alumina powder is made from great wall aluminum industry, explosion-proof fiber is made from Lioyang Jintai chemical fiber Co., Ltd, sepiolite powder is made from Xinjia mineral industry, and sodium tripolyphosphate is made from Wuhan inorganic salt Co. The following examples were prepared according to the following procedure:
(1) Fully mixing brown corundum and sepiolite powder to obtain a mixture 1 for later use;
(2) Fully mixing pure calcium aluminate 75 cement with alumina powder to serve as a mixture 2 for later use;
(3) Mixing Guangxi white mud, metal silicon, metal aluminum, explosion-proof fiber and sodium tripolyphosphate fully to obtain a mixture 3 for later use;
(4) And adding the mixture 1 into a stirrer, mixing and grinding for 5 minutes, adding the mixture 2, mixing and grinding for 5 minutes, and finally adding the mixture 3, mixing and grinding for 15 minutes to obtain a finished product.
in the embodiment, the pressure resistance of the spray coating is measured by controlling the addition of the sepiolite, the explosion-proof fiber and the metal aluminum.
Example 1
The weight percentage ratio of the components is as follows: 65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metal silicon, 1% of metal aluminum, 1% of explosion-proof fiber, 8% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
example 2
the weight percentage ratio of the components is as follows: 65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metallic silicon, 0.5% of metallic aluminum, 0.5% of explosion-proof fiber, 5% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
Test example 2: sample 2 was sintered to 1350 ℃ and held for 4 hours with a pressure resistance index of 25.
Example 3
The weight percentage ratio of the components is as follows: 65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metallic silicon, 0.5% of metallic aluminum, 0.3% of explosion-proof fiber, 3% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
test example 3: sample 3 was sintered to 1350 ℃ and held for 4 hours with a pressure resistance index of 20.
Example 4
The weight percentage ratio of the components is as follows: 65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metallic silicon, 1.5% of metallic aluminum, 1.5% of explosion-proof fiber, 10% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
test example: the compressive strength and compressive strength were measured by sintering example 1 to 110 c, holding for 24 hours and 1350 c, holding for 4 hours, and the compressive strength and compressive strength were measured by sintering the samples prepared in examples 2-4 to 1350 c, holding for 4 hours, and the results of the measurements are given in the following table:
And (4) conclusion:
through the above examples and test examples, it can be obtained that the increasing or decreasing strength of the sepiolite, the explosion-proof fiber and the aluminum metal does not reach the optimal value, and finally the sepiolite addition is determined to be 8%, the aluminum metal addition is determined to be 1%, the explosion-proof fiber addition is determined to be 1%, and the compressive strength can reach the optimal value.
Claims (3)
1. the high-strength explosion-proof spray coating is characterized by comprising the following components in percentage by weight:
65% of brown corundum, 5% of pure calcium aluminate 75 cement, 5% of Guangxi white mud, 5% of metal silicon, 0.9-1.2% of metal aluminum, 0.8-1.2% of explosion-proof fiber, 7-9% of sepiolite powder, 10% of alpha alumina powder and 2% of sodium tripolyphosphate.
2. The high-strength explosion-proof spray paint according to claim 1, wherein the particle size of the alpha alumina powder is 2500 meshes or more.
3. The method for preparing the high-strength explosion-proof spray coating material according to claim 1, which is characterized by comprising the following steps:
s1: fully mixing brown corundum and sepiolite powder to obtain a mixture 1 for later use;
S2: fully mixing pure calcium aluminate 75 cement with alumina powder to serve as a mixture 2 for later use;
S3: mixing Guangxi white mud, metal silicon, metal aluminum, explosion-proof fiber and sodium tripolyphosphate fully to obtain a mixture 3 for later use;
S4: and adding the mixture 1 into a stirrer, mixing and grinding for 5 minutes, adding the mixture 2, mixing and grinding for 5 minutes, and finally adding the mixture 3, mixing and grinding for 15 minutes to obtain a finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910783073.5A CN110563470A (en) | 2019-08-23 | 2019-08-23 | High-strength explosion-proof spray coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910783073.5A CN110563470A (en) | 2019-08-23 | 2019-08-23 | High-strength explosion-proof spray coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115872730A (en) * | 2022-11-28 | 2023-03-31 | 湖北兴龙高温节能材料有限公司 | Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115872730A (en) * | 2022-11-28 | 2023-03-31 | 湖北兴龙高温节能材料有限公司 | Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof |
| CN115872730B (en) * | 2022-11-28 | 2023-11-07 | 湖北兴龙高温节能材料有限公司 | Slag-sticking-preventing thermal-state gunning material for ladle, and preparation method and use method thereof |
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Application publication date: 20191213 |