CN108285350A - A kind of tri compound SiC based refractories and preparation method thereof - Google Patents

A kind of tri compound SiC based refractories and preparation method thereof Download PDF

Info

Publication number
CN108285350A
CN108285350A CN201810096915.5A CN201810096915A CN108285350A CN 108285350 A CN108285350 A CN 108285350A CN 201810096915 A CN201810096915 A CN 201810096915A CN 108285350 A CN108285350 A CN 108285350A
Authority
CN
China
Prior art keywords
refractories
base
tri compound
bonding agent
sic
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.)
Granted
Application number
CN201810096915.5A
Other languages
Chinese (zh)
Other versions
CN108285350B (en
Inventor
劳新斌
江伟辉
梁健
徐贵荣
苗立锋
李亚格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jingdezhen Ceramic Institute
Original Assignee
Jingdezhen Ceramic Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jingdezhen Ceramic Institute filed Critical Jingdezhen Ceramic Institute
Priority to CN201810096915.5A priority Critical patent/CN108285350B/en
Publication of CN108285350A publication Critical patent/CN108285350A/en
Application granted granted Critical
Publication of CN108285350B publication Critical patent/CN108285350B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632Organic additives
    • C04B35/634Polymers
    • C04B35/63404Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416Polyvinylalcohols [PVA]; Polyvinylacetates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3218Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • C04B2235/3463Alumino-silicates other than clay, e.g. mullite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • C04B2235/3463Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3481Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607Thermal properties, e.g. thermal expansion coefficient

Abstract

The invention discloses a kind of tri compound SiC based refractories, including base-material and bonding agent, the group of the base-material becomes 30~40wt% of carborundum aggregate, 10~55wt% of silicate mineral, 5~35wt% of technical grade aluminum raw material, 10~35wt% of cordierite, and the dosage of the bonding agent is 6~12wt% of base-material.In addition the preparation method of above-mentioned tri compound SiC based refractories is also disclosed.The present invention introduces high-strength, low bulk mullite cordierite matrix as in conjunction with phase in a manner of fabricated in situ between carborundum aggregate particle, solve the problems, such as that the artificial synthesized powder of the prior art and aggregate are not easy to be uniformly mixed, are difficult to combine, the technological deficiencies such as low-intensity caused by this, thermal shock resistance difference are avoided, the quality of Tercod is significantly improved.Present invention process is simple, not only reduces firing temperature, and significantly reduce manufacturing cost, has a vast market foreground, may advantageously facilitate progress and the application development of industry technology.

Description

A kind of tri compound SiC based refractories and preparation method thereof
Technical field
The present invention relates to technical field of refractory materials more particularly to a kind of tri compound SiC based refractories and its systems Preparation Method.
Background technology
Refractory material is very extensive in sector applications such as metallurgy, cement, glass, ceramics, quality and the matter for holding burned product Amount and production cost have direct association.Due to being used in high temperature for a long time, refractory material needs to have that high-strength, low-heat is swollen The performances such as swollen, high fire resistance, high creep resistance and good thermal stability and chemical stability.Since carbofrax material has Have the advantages that elevated temperature strength is big, refractoriness under load is high, thermal stability and thermal conductivity are good, therefore is widely used as refractory material.
The material system of existing Tercod is based on clay-silicon carbide, mullite silicon carbide etc., i.e., with carbon SiClx is aggregate, with oxide materials such as clay, mullite fine powder, aluminium oxide (or aluminium hydroxide) fine powder, fine silicas For matrix.However, (flexural strength is usual for the shortcomings of material system of the prior art is high in the prevalence of low strong and coefficient of thermal expansion Less than 60MPa, coefficient of thermal expansion is usually above 4.7 × 10-6·℃-1), reason essentially consists in:
(1) the most of raw material (such as mullite, corundum) used in the prior art is mainly artificial synthesized, with carbonization Silicon aggregate is the mixing between two kinds of solid phases, is difficult not only to be uniformly mixed, but also the combination of the two belongs to physical contact, it is difficult to Chemical bonding is generated, thus be easy to cause the disadvantages such as unstable product quality, intensity is low so that the quality of Tercod It is difficult to be promoted.
(2) (the former coefficient of thermal expansion is 5.3 × 10 to the coefficient of thermal expansion height of the combination such as mullite and corundum phase-6· ℃-1, the latter is then 8.8 × 10-6·℃-1), thermal shock resistance usually higher so as to cause the coefficient of thermal expansion of this Related product It is poor.
Since intensity and coefficient of thermal expansion are the key factors for directly affecting material thermal shock resistance, there is an urgent need for research and development A kind of high-strength, low bulk SiC based refractories, the needs of to meet industry technology and application development.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of tri compound SiC based refractories, To effectively improve intensity, the thermal shock resistance of material, thus greatly Improving The Quality of Products, and production cost is reduced, preferably Meets the needs of industry technology and application development.Another object of the present invention is to provide above-mentioned tri compound silicon carbide refractories The preparation method of material.
The purpose of the present invention is achieved by the following technical programs:
A kind of tri compound SiC based refractories provided by the invention, including base-material and bonding agent, the base-material Group is green as 30~40wt% of carborundum aggregate, 10~55wt% of silicate mineral, 5~35wt% of technical grade aluminum raw material, violet 10~35wt% of stone.
Further, silicate mineral of the present invention is andalusite, sillimanite, kyanite or bauxite;The industry Grade aluminum raw material is α-Al2O3、γ-Al2O3Or Al (OH)3
In said program, the granularity of carborundum aggregate of the present invention is 60~325 mesh, and the granularity of silicate mineral is The granularity of 180~250 mesh, technical grade aluminum raw material is 180~250 mesh, and the granularity of cordierite is 250~325 mesh.The combination Agent is the PVA solution of concentration 5wt%.
Another object of the present invention is achieved by the following technical programs:
The preparation method of above-mentioned tri compound SiC based refractories provided by the invention is as follows:The base-material is mixed Afterwards, bonding agent is added to be uniformly mixed;The green compact obtained after compression moulding, drying, are sintered, and violet blueness is obtained after firing Stone-mullite silicon carbide fire resistant materials.
The present invention introduces high-strength mullite in carborundum aggregate by formula system by way of fabricated in situ (mullite bonded mutually is synthesized to obtain by the blend high-temp in-situ of silicate mineral and technical grade aluminum raw material), and add low swollen Swollen cordierite, which is used as, combines phase.In conjunction with mode be the liquid phase generated in sintering process using feedstock blend, the liquid phase It is good with the carborundum aggregate wetability of slight oxidation, so as to be uniformly adhered to carborundum aggregate particle surface.Liquid phase It is therefrom in situ that mullite is precipitated while carborundum aggregate particle is bonded together, between carborundum aggregate particle It introduces high-strength, low bulk silicate phase to be used as in conjunction with phase, the dichroite-mullite-silicon carbide for obtaining tri compound is resistance to Fiery material.
Further, its moisture of green compact < 0.5% after drying described in preparation method of the present invention.
In said program, sintering temperature described in preparation method of the present invention is 1300~1400 DEG C, and firing time is 1~2h.
The invention has the advantages that:
(1) present invention introduces mullite in a manner of fabricated in situ, and silicon carbide can be evenly distributed in together with cordierite The particle surface of aggregate, and chemical bonding is generated, high-strength, low bulk silicon is introduced between carborundum aggregate particle to realize Hydrochlorate efficiently solves the artificial synthesized powder of the prior art and aggregate is not easy to be uniformly mixed, is difficult to combine mutually as phase is combined Problem avoids the technological deficiencies such as low-intensity caused by this, significantly improves the quality of Tercod.Meanwhile By introducing the cordierite of low thermal expansion, the coefficient of thermal expansion of refractory material can be greatly lowered, be conducive to weaken rapid heat cycle Thermal stress caused by inside process in which materials, to help to improve the thermal shock resistance of product.Tri compound carbonization of the present invention The main performance index of silica refractory is:80~100MPa of flexural strength, coefficient of thermal expansion 3.8~4.0 × 10-6· ℃-1
(2) present invention process is simple, not only reduces firing temperature, and significantly reduce manufacturing cost, has wide Market prospects, may advantageously facilitate progress and the application development of industry technology.
Description of the drawings
Below in conjunction with embodiment and attached drawing, the present invention is described in further detail:
Fig. 1 is that the microstructure of dichroite-mullite-SiC based refractories obtained by the embodiment of the present invention (is swept Retouch Electronic Speculum secondary electron image).
Specific implementation mode
Embodiment one:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (80~325 mesh) 30wt%, andalusite (180 mesh) 30wt%, α-Al2O3(325 mesh) 20wt%, cordierite (325 mesh) 20wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 8wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1300 DEG C of temperature Degree is lower to be burnt into 1h, obtains dichroite-mullite-SiC based refractories.
Embodiment two:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 35wt%, sillimanite (180 mesh) 40wt%, γ-Al2O3(325 mesh) 15wt%, cordierite (325 mesh) 10wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 10wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1400 DEG C of temperature Degree is lower to be burnt into 1h, obtains dichroite-mullite-SiC based refractories.
Embodiment three:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 30wt%, kyanite (180 mesh) 25wt%, Al (OH)3(325 mesh) 30wt%, cordierite (325 mesh) 15wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 6wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1340 DEG C of temperature Degree is lower to be burnt into 2h, obtains dichroite-mullite-SiC based refractories.
Example IV:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 40wt%, andalusite (180 mesh) 25wt%, α-Al2O3(325 mesh) 15wt%, cordierite (325 mesh) 20wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 6wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1380 DEG C of temperature Degree is lower to be burnt into 2h, obtains dichroite-mullite-SiC based refractories.
Embodiment five:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 40wt%, kyanite (180 mesh) 20wt%, γ-Al2O3(325 mesh) 28wt%, cordierite (325 mesh) 12wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 8wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1360 DEG C of temperature Degree is lower to be burnt into 1h, obtains dichroite-mullite-SiC based refractories.
Embodiment six:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 35wt%, bauxite (180 mesh) 50wt%, γ-Al2O3(250 mesh) 5wt%, cordierite (325 mesh) 10wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 7wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1340 DEG C of temperature Degree is lower to be burnt into 2h, obtains dichroite-mullite-SiC based refractories.
Embodiment seven:
1, a kind of tri compound SiC based refractories of the present embodiment, including base-material and bonding agent, the group of base-material become Carborundum aggregate (60~325 mesh) 40wt%, sillimanite (180 mesh) 10wt%, α-Al2O3(325 mesh) 15wt%, cordierite (325 mesh) 35wt%, bonding agent are the PVA solution of concentration 5wt%, and dosage is the 6wt% of base-material.
2, the present embodiment is a kind of as follows using corundum-silicon carbide composite ceramic materials that natural minerals are raw material:
After above-mentioned base-material is mixed, bonding agent is added and is uniformly mixed;After agitated, ageing mixture, selected according to product size suitable When pressure compression moulding, dried at a temperature of 110 DEG C and obtain green compact (entering kiln moisture < 0.5%);Then in 1350 DEG C of temperature Degree is lower to be burnt into 2h, obtains dichroite-mullite-SiC based refractories.
As shown in Figure 1, dichroite-mullite-SiC based refractories made from the embodiment of the present invention, in silicon carbide bone The dichroite-mullite matrix introduced between material particle, is not only wrapped in the surface of carborundum aggregate particle, and with chemical bond The mode of conjunction combines, and is uniformly mixed, in conjunction with stable and firm, is conducive to the quality for improving Tercod.

Claims (7)

1. a kind of tri compound SiC based refractories, it is characterised in that:Including base-material and bonding agent, the composition of the base-material For 30~40wt% of carborundum aggregate, 10~55wt% of silicate mineral, 5~35wt% of technical grade aluminum raw material, cordierite 10 ~35wt%, the dosage of the bonding agent are 6~12wt% of base-material.
2. tri compound SiC based refractories according to claim 1, it is characterised in that:The silicate mineral is Andalusite, sillimanite, kyanite or bauxite;The technical grade aluminum raw material is α-Al2O3、γ-Al2O3Or Al (OH)3
3. tri compound SiC based refractories according to claim 1, it is characterised in that:The carborundum aggregate Granularity is 60~325 mesh, and the granularity of silicate mineral is 180~250 mesh, and the granularity of technical grade aluminum raw material is 180~250 The granularity of mesh, cordierite is 250~325 mesh.
4. tri compound SiC based refractories according to claim 1, it is characterised in that:The bonding agent is concentration The PVA solution of 5wt%.
5. the preparation method of one of the claim 1-4 tri compound SiC based refractories, it is characterised in that:It will be described After base-material mixing, bonding agent is added and is uniformly mixed;The green compact obtained after compression moulding, drying, are sintered, after firing i.e. Dichroite-mullite-SiC based refractories are made.
6. the preparation method of tri compound SiC based refractories according to claim 5, it is characterised in that:It is described dry Its moisture of green compact < 0.5% after dry.
7. the preparation method of tri compound SiC based refractories according to claim 5, it is characterised in that:The burning Junction temperature is 1300~1400 DEG C, and firing time is 1~2h.
CN201810096915.5A 2018-01-31 2018-01-31 Ternary composite silicon carbide refractory material and preparation method thereof Active CN108285350B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810096915.5A CN108285350B (en) 2018-01-31 2018-01-31 Ternary composite silicon carbide refractory material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810096915.5A CN108285350B (en) 2018-01-31 2018-01-31 Ternary composite silicon carbide refractory material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108285350A true CN108285350A (en) 2018-07-17
CN108285350B CN108285350B (en) 2020-05-29

Family

ID=62836284

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810096915.5A Active CN108285350B (en) 2018-01-31 2018-01-31 Ternary composite silicon carbide refractory material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108285350B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277852A (en) * 2021-05-21 2021-08-20 景德镇陶瓷大学 Cordierite-based microcrystalline glass combined silicon carbide ceramic material and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252397A (en) * 1999-09-28 2000-05-10 李博文 Preparation of sintered silicon carbide material
CN1800087A (en) * 2006-01-16 2006-07-12 宜兴市宝欣耐火材料有限公司 Highly heatproof and shockproof mullite-cordierite refractory composition
CN102775163A (en) * 2012-07-25 2012-11-14 江苏省陶瓷研究所有限公司 Silicon carbide-cordierite composite ceramic kiln furniture and preparation method thereof
KR20160136766A (en) * 2015-05-21 2016-11-30 (주)티피에스 Zirconia refractory materials for superhigh temperature using nano-powder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252397A (en) * 1999-09-28 2000-05-10 李博文 Preparation of sintered silicon carbide material
CN1800087A (en) * 2006-01-16 2006-07-12 宜兴市宝欣耐火材料有限公司 Highly heatproof and shockproof mullite-cordierite refractory composition
CN102775163A (en) * 2012-07-25 2012-11-14 江苏省陶瓷研究所有限公司 Silicon carbide-cordierite composite ceramic kiln furniture and preparation method thereof
KR20160136766A (en) * 2015-05-21 2016-11-30 (주)티피에스 Zirconia refractory materials for superhigh temperature using nano-powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277852A (en) * 2021-05-21 2021-08-20 景德镇陶瓷大学 Cordierite-based microcrystalline glass combined silicon carbide ceramic material and preparation method thereof

Also Published As

Publication number Publication date
CN108285350B (en) 2020-05-29

Similar Documents

Publication Publication Date Title
CN102701764B (en) Sintered alumina-silica refractory material and preparation method thereof
CN106431371B (en) A kind of high-strength closed pore mullite material and preparation method thereof
CN107266052B (en) Alumina-titanium calcium aluminate-silicon carbide complex phase refractory material and preparation method thereof
CN102701763B (en) Low-aluminum sintered alumina-silica refractory material and preparation method thereof
CN109279884B (en) High-strength cordierite-mullite ceramic roller and preparation method thereof
CN105060905B (en) Low alkaline-resisting mullite brick of aluminium and preparation method thereof
CN103755363A (en) Lightweight siliceous mullite composite brick and preparation method thereof
CN102219530B (en) Silicon mullite brick and preparation method thereof
CN103588487B (en) Low-expansion ceramic roller, and preparation method thereof
CN104944979A (en) Preparation method of firebrick used for rotary kiln
CN106083017B (en) A kind of high-performance low bulk crucible and preparation method thereof
CN107619286A (en) A kind of preparation method of corundum-mullite sagger
CN107235738A (en) A kind of preparation method of fiber reinforced refractory material
CN108083765A (en) Low heat conduction anti-strip brick and preparation method thereof
CN108218444A (en) A kind of toughening saggar of andalusite containing zirconium and preparation method
CN107935575B (en) High-purity low-creep fused mullite brick and preparation method thereof
CN108275969A (en) It is a kind of to utilize the mullite silicon carbide whisker composite ceramic material and preparation method thereof that natural minerals are raw material
CN107586124A (en) High-strength light composite ceramic material and preparation method thereof
CN104876605A (en) Refractory brick for boiler
CN106588059A (en) Prefabricated member for lime rotary kiln and preparation method of prefabricated member
CN106145976B (en) Andalusite-mullite-silicon carbide brick for cement kiln and preparation method thereof
CN105859297A (en) Silicon carbide composite refractory material and preparation method thereof
CN110128113B (en) Magnesium-aluminum-titanium brick and preparation method and application thereof
CN106431434A (en) Closed-pore bauxite based mullite material and preparing method thereof
CN108285350A (en) A kind of tri compound SiC based refractories and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180717

Assignee: Guangxi Sanhuan Enterprise Group Holding Co.,Ltd.

Assignor: JINGDEZHEN CERAMIC INSTITUTE

Contract record no.: X2021990000393

Denomination of invention: A ternary composite silicon carbide refractory and its preparation method

Granted publication date: 20200529

License type: Exclusive License

Record date: 20210701

EE01 Entry into force of recordation of patent licensing contract