CN107473719A - 一种低碳高强耐火材料及其制备工艺 - Google Patents
一种低碳高强耐火材料及其制备工艺 Download PDFInfo
- Publication number
- CN107473719A CN107473719A CN201710737646.1A CN201710737646A CN107473719A CN 107473719 A CN107473719 A CN 107473719A CN 201710737646 A CN201710737646 A CN 201710737646A CN 107473719 A CN107473719 A CN 107473719A
- Authority
- CN
- China
- Prior art keywords
- refractory material
- fine powder
- low carbon
- powder
- carbon high
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- 239000011819 refractory material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 84
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 26
- 239000010431 corundum Substances 0.000 claims abstract description 25
- 239000004411 aluminium Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 239000007767 bonding agent Substances 0.000 claims abstract description 6
- 239000011449 brick Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 81
- 239000000377 silicon dioxide Substances 0.000 claims description 48
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 45
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 30
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 28
- 239000013067 intermediate product Substances 0.000 claims description 28
- -1 silica modified phenolic aldehyde Chemical class 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052594 sapphire Inorganic materials 0.000 claims description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 14
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 11
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 10
- 210000001161 mammalian embryo Anatomy 0.000 claims description 10
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000011863 silicon-based powder Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 23
- 239000010959 steel Substances 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 8
- 238000009628 steelmaking Methods 0.000 abstract description 7
- 238000003723 Smelting Methods 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000016507 interphase Effects 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000001473 noxious effect Effects 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000008092 positive effect Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- RRTCFFFUTAGOSG-UHFFFAOYSA-N benzene;phenol Chemical compound C1=CC=CC=C1.OC1=CC=CC=C1 RRTCFFFUTAGOSG-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002023 wood 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
- C04B35/101—Refractories from grain sized mixtures
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
-
- 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
- C04B2235/34—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
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
-
- 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
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
-
- 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
- C04B2235/54—Particle size related information
- C04B2235/5463—Particle size distributions
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/606—Drying
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
-
- 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
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
-
- 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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明涉及一种低碳高强耐火材料及其制备工艺，所述耐火砖是由以下重量百分比的原料制成：闭孔刚玉50‑54%、白刚玉细粉18‑22%、活性氧化铝微粉14‑18%、金属铝粉8‑12%、结合剂2‑6%和助剂4‑8%。本发明产品安全无毒，是一种环境友好型材料；具有高热稳定性和热强度；具有良好的抗热震性；耐热性优秀，在高温条件下保持优良的物理机械性能；制备过程不产生有害污染物；可替代冶金炼钢行业中的含碳非氧化物体系结构的耐热材料，由于本产品含碳量低，并且组分间相互作用形成Al2OC或Al4O4C中的至少一种增强相提高耐火材料的性能，且结构稳定确保在钢铁冶炼的过程中该材料的碳不会污染钢水，对钢铁冶炼行业来说降低了制造优质钢的成本，尤其在防止钢水污染方面有明显效果。
Description
技术领域
本发明涉及一种耐火材料，尤其涉及一种清洁环保的低碳高强耐火材料及其制备工艺。
背景技术
在现在的社会中，耐火材料已成为不可或缺的一种材料，尤其在冶金、化工、石油等化工领域，耐火材料的质量好坏往往也影响了其制得成品的质量。在冶金领域中的耐火材料经常应用于连铸长水口、浸入式水口、滑动水口及薄带连铸步流器等，此类耐火材料往往有高强度、抗侵蚀、抗热震、抗氧化等性能需求，目前用于这些方面的通常为C-Al2O3质耐火材料，但研究发现含碳非氧化物耐火材料极易对钢造成污染。
以炼钢连铸用功能型耐火材料为例，含碳耐火材料往往采用酚醛树脂或者沥青作为结合剂，在生产和使用的过程中难免产生环境污染，与此同时含碳耐火材料中的碳易融入钢水，引起钢水的增碳，极大地限制了优质钢的生产和发展。
中国专利局与2012年9月12日公布了一种MgCa-SiC-C耐火材料及其制备工艺的发明专利，专利公开号 CN102838361A，该技术方案采用了镁钙砂或镁白云石砂颗粒、镁砂细粉、碳化硅、石墨、无水树脂等组分制成的耐火材料。其不足之处在于，会对环境造成污染并极易污染钢水影响炼钢的品质。
发明内容
本发明的目的在于为了解决现有冶金用耐火材料对环境造成污染并极易污染钢水影响炼钢的品质的问题，提供了一种低碳清洁、环境友好的非氧化物-氧化物型高强度复合耐火材料。
本发明的另一个目的是为了提供一种低碳高强耐火材料的制备工艺。
为了实现上述目的，本发明采用以下技术方案：
一种低碳高强耐火材料，所述耐火砖由以下重量百分比的原料制成：闭孔刚玉50-54%、白刚玉细粉18-22%、活性氧化铝微粉14-18%、金属铝粉8-12%、结合剂2-6%和助剂4-8%。在本技术方案中，作为耐火材料骨料的闭孔刚玉一种是由特殊工艺制备的具有微孔结构的刚玉，与普通板状刚玉相比有较高的闭气孔率，高闭气孔率减少了耐火材料内部与大气相通的气孔，在使用过程中耐火材料受到的蚀损和水化作用将大大降低，大大延长了其使用寿命。作为耐火材料基质的白刚玉细粉和活性氧化铝微粉均有晶体尺寸小，物理机械性能优秀等特点，白刚玉细粉的耐热性和抗热震性优良，活性氧化铝具有良好的吸附性、表面活性和热稳定性，以此二者作为基质的耐火材料具有比普通耐火材料更优的耐火性能。金属铝粉作为该耐火材料的添加剂，主要是为了在提高其性能的基础上减少其含碳非氧化物含量，含碳非氧化物中的碳易在冶金炼钢过程中对环境和钢水造成污染，该产品制备过程中由于金属铝粉的加入能够结合碳生成含碳的金属氧化物Al2OC或Al4O4C中的至少一种，其结构稳定，作为增强相提高本产品的高温稳定性和抗热冲击性，降低了热膨胀系数，过量剩余的少量金属铝呈游离态，高温熔融后填充如基质的间隙和气孔，作为塑性相更增强了材料韧性和抗热震性。本发明产品含碳量极低，并且碳与其他组分生成至少一种含碳金属氧化物，是一种环境友好型的材料，满足优质钢生产的需求。
作为优选，所述白刚玉细粉中Al2O3质量分数大于99.15%。高纯度的白刚玉细粉降低了杂质含量，提高了本发明产品质量的稳定性。
作为优选，所述助剂为氮化硅。氮化硅在烧结过程中发生氧化，在表面生成黄褐色玻璃相氧化物，在耐火材料截面出现致密层，内部生成大量氧化硅纤维，使得耐火材料的抗热震性大大提升。
作为优选，所述闭孔刚玉是由微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉制成的。
作为优选，闭孔刚玉的制备步骤如下：
a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉共同置于研钵中，加水进行研磨成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在105-115℃下烘干220-260min得到第II中间产物；
d）将c）得到的第II中间产物置于1930-1970℃条件下煅烧160-200min，煅烧升温速率为15-20℃/min，空气冷却，得到闭孔刚玉。
作为优选，微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉的重量比为95：3.5-4.5：0.5-1.5。
作为优选，所述结合剂为氧化硅改性酚醛树脂，其是由以下质量比的原料制成：苯酚25-30%、甲醛30-36%、乙二醇15-20%、氧化硅微粉15-20%、γ-氨丙基三乙氧基硅烷5-10%和浓盐酸4-6%。
作为优选，所述氧化硅改性酚醛树脂的制备步骤如下：
I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，对其进行超声震荡30-35min，得到氧化硅悬液；
II）将苯酚和甲醛配成溶液，与I）得到的氧化硅悬液混合，再对其进行超声震荡30-35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入浓盐酸，保温25-30min后将温度上升到95-100℃，保温80-100min，得到氧化硅改性酚醛树脂。
一种低碳高强耐火材料的制备工艺，所述制备工艺包括以下步骤：
1）闭孔刚玉的制备：a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉共同置于研钵中，加水对其进行研磨，直至成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在105-115℃下烘干220-260min得到第II中间产物；
d）将d）得到的第II中间产物置于1930-1970℃条件下煅烧230-250min，煅烧升温速率为15-20℃/min，空气冷却，得到闭孔刚玉；
2）氧化硅改性酚醛树脂的制备：I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，对其进行超声震荡30-35min，得到氧化硅悬液；
II）将苯酚和甲醛配成溶液，与I）得到的氧化硅悬液混合，再对其进行超声震荡30-35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入浓盐酸，保温25-30min后将温度上升到95-100℃，保温80-100min，得到氧化硅改性酚醛树脂；
3）将1）所得闭孔刚玉压碎，与所述白刚玉细粉、活性氧化铝微粉、金属铝粉和助剂混合研磨均匀，加入2）所得的氧化硅改性酚醛树脂结合剂，利用1000t摩擦压砖机或2000t液压压砖机压成砖胚；
4）取出3）所得的砖胚，自然烘干后在180-220℃条件下干燥23.5-24.5h，得到干砖胚；
5）将4）的干砖胚置于氮气气氛炉中，1600-1700℃条件下通氮气保温7.5-8.5h，得到低碳高强耐火材料。
作为优选，步骤1）中微晶活性α-Al2O3微粉粒径为12500目以上，步骤2）中氧化硅微粉粒径为15400目以上。
本发明的有益效果是：
1）本发明产品具有高热稳定性和热强度。
2）本发明产品具有良好的抗热震性。
3）本发明产品安全无毒，是一种环境友好型材料。
4）本发明产品耐热性优秀，在高温条件下保持优良的物理机械性能。
5）本发明产品制备过程不产生有害污染物。
6）本发明产品可替代冶金炼钢行业中的含碳非氧化物体系结构的耐热材料，由于本产品含碳量低，并且组分间相互作用形成Al2OC或Al4O4C中的至少一种增强相提高耐火材料的性能，且结构稳定确保在钢铁冶炼的过程中该材料的碳不会污染钢水，对钢铁冶炼行业来说降低了制造优质钢的成本，尤其在防止钢水污染方面有明显效果。
具体实施方式：
以下通过具体实施例，对本发明作进一步的解释：
本发明所用原料均可从市场购得。
实施例1
一种低碳高强耐火材料的制备工艺，所述制备工艺包括以下步骤：
1）闭孔刚玉的制备：a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉按重量比为95：4：1的比例共同置于研钵中，加入适量水进行研磨成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在105℃下烘干220min得到第II中间产物；
d）将c）得到的第II中间产物置于1930℃条件下煅烧160min，煅烧升温速率为15℃/min，空气冷却，得到闭孔刚玉；
2）氧化硅改性酚醛树脂的制备：I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，氧化硅微粉、乙二醇、γ-氨丙基三乙氧基硅烷质量比为20：15：5，对其进行70kW的超声震荡30min，得到氧化硅悬液；
II）将苯酚和甲醛按5：6的配比配成溶液，与I）得到的氧化硅悬液按质量比55：40混合，再对其进行70kW的超声震荡30min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入36%浓度的浓盐酸，树脂原液与浓盐酸质量比为95：5，保温25min后将温度上升到95℃，保温80min，得到氧化硅改性酚醛树脂；
3）将1）所得闭孔刚玉压碎，与所述白刚玉细粉、活性氧化铝微粉、金属铝粉、氮化硅按重量比为50：18：14：8：5的比例混合研磨均匀，加入占粉末重量5.8%的2）所得的酚醛树脂结合剂，利用1000t摩擦压砖机压成砖胚；所用白刚玉细粉质量分数为99.5%；
4）取出2）所得的砖胚，自然烘干后在180℃条件下干燥24 h，得到干砖胚；
5）将3）的干砖胚置于氮气气氛炉中，1600℃条件下通氮气保温8h，得到低碳高强耐火材料；氮气质量分数为99.99%。
原料配比为：微晶活性α-Al2O3微粉47.5%、工业Al2O3细粉2%、碳酸钙细粉0.5%、苯酚1.25%、甲醛1.5%、乙二醇0.75%、氧化硅微粉1%、γ-氨丙基三乙氧基硅烷0.25%、浓盐酸0.25%、白刚玉细粉18%、性氧化铝微粉14%、金属铝粉8%、氮化硅5%。
实施例2
一种低碳高强耐火材料的制备工艺，所述制备工艺包括以下步骤：
1）闭孔刚玉的制备：a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉按重量比为95：4.5：0.5的比例共同置于研钵中，加入适量水进行研磨成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在115℃下烘干260min得到第II中间产物；
d）将d）得到的第II中间产物置于1970℃条件下煅烧200min，煅烧升温速率为20℃/min，空气冷却，得到闭孔刚玉；
2）氧化硅改性酚醛树脂的制备：I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，氧化硅微粉、乙二醇、γ-氨丙基三乙氧基硅烷质量比为15：20：5，对其进行85kW的超声震荡35min，得到氧化硅悬液；
II）将苯酚和甲醛按5：6的配比配成溶液，与I）得到的氧化硅悬液按质量比55：40混合，再对其进行85kW的超声震荡35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入36%浓度的浓盐酸，树脂原液与浓盐酸质量比为95：5，保温25min后将温度上升到100℃，保温80min，得到氧化硅改性酚醛树脂；
3）将1）所得闭孔刚玉压碎，与所述白刚玉细粉、活性氧化铝微粉、金属铝粉、氮化硅按重量比为54：18：14：8：4的比例混合研磨均匀，加入占粉末重量2%的2）所得的酚醛树脂结合剂，利用1000t摩擦压砖机压成砖胚；所用白刚玉细粉质量分数为99.5%；
4）取出3）所得的砖胚，自然烘干后在220℃条件下干燥24 h，得到干砖胚；
5）将4）的干砖胚置于氮气气氛炉中，1700℃条件下通氮气保温8h，得到低碳高强耐火材料；氮气质量分数为99.99%。
原料配比为：微晶活性α-Al2O3微粉51.3%、工业Al2O3细粉2.43%、碳酸钙细粉0.27%、苯酚0.5%、甲醛0.6%、乙二醇0.4%、氧化硅微粉0.3%、γ-氨丙基三乙氧基硅烷0.1%、浓盐酸0.1%、白刚玉细粉18%、性氧化铝微粉14%、金属铝粉8%、氮化硅4%。
实施例3
一种低碳高强耐火材料的制备工艺，所述制备工艺包括以下步骤：
1）闭孔刚玉的制备：a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉按重量比为95：3.5：1.5的比例共同置于研钵中，加入适量水进行研磨成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在110℃下烘干240min得到第II中间产物；
d）将d）得到的第II中间产物置于1950℃条件下煅烧180min，煅烧升温速率为20℃/min，空气冷却，得到闭孔刚玉；
2）氧化硅改性酚醛树脂的制备：I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，氧化硅微粉、乙二醇、γ-氨丙基三乙氧基硅烷质量比为15：15：10，对其进行75kW的超声震荡35min，得到氧化硅悬液；
II）将苯酚和甲醛按5：6的配比配成溶液，与I）得到的氧化硅悬液按质量比55：40混合，再对其进行75kW的超声震荡35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入36%浓度的浓盐酸，树脂原液与浓盐酸质量比为95：5，保温25min后将温度上升到95℃，保温90min，得到氧化硅改性酚醛树脂；
3）将1）所得闭孔刚玉压碎，与所述白刚玉细粉、活性氧化铝微粉、金属铝粉、氮化硅按重量比为50：18：14：12：4的比例混合研磨均匀，加入占粉末重量2%的2）所得的酚醛树脂结合剂，利用1000t摩擦压砖机压成砖胚；所用白刚玉细粉质量分数为99.5%；
4）取出3）所得的砖胚，自然烘干后在200℃条件下干燥24 h，得到干砖胚；
5）将4）的干砖胚置于氮气气氛炉中，1650℃条件下通氮气保温8h，得到低碳高强耐火材料；氮气质量分数为99.99%。
原料配比为：微晶活性α-Al2O3微粉47.5%、工业Al2O3细粉1.75%、碳酸钙细粉0.75%、苯酚0.5%、甲醛0.6%、乙二醇0.3%、氧化硅微粉0.3%、γ-氨丙基三乙氧基硅烷0.2%、浓盐酸0.1%、白刚玉细粉18%、性氧化铝微粉14%、金属铝粉12%、氮化硅4%。
对实施例1-3得到的低碳高强耐火材料进行检测，测试结果与烧成微孔铝碳砖WLT-2产品的理化指标进行对比，结果见表1。
表1、测试结果
| 测试项目 | 单位 | 烧成微孔铝碳砖WLT-2 | 实施例1 | 实施例2 | 实施例3 |
| 常温耐压强度 | MPa | ≥60 | 155 | 152 | 157 |
| 体积密度 | g/cm3 | ≥2.65 | 3.14 | 3.09 | 3.22 |
| 显气孔率 | % | ≤16 | 2.8 | 4.4 | 3.9 |
| 导热系数 | W/(m·k) | ≥13 | 26 | 21 | 24 |
| 平均孔径 | μm | ≤1 | 0.669 | 0.701 | 0.681 |
| 含碳量 | % | ≥11 | 2.04 | 1.31 | 1.37 |
| 抗热震性（BS1902:5.11测试） | 次 | / | ≥30 | ≥30 | ≥30 |
本发明产品具有高热稳定性和热强度、良好的抗热震性；耐热性优秀，在高温条件下保持优良的物理机械性能；制备过程不产生有害污染物；产品安全无毒，是一种环境友好型材料；可替代冶金炼钢行业中的含碳非氧化物体系结构的耐热材料，由于本产品含碳量低，并且组分间相互作用形成Al2OC或Al4O4C中的至少一种增强相提高耐火材料的性能，且结构稳定确保在钢铁冶炼的过程中该材料的碳不会污染钢水。对钢铁冶炼行业来说降低了制造优质钢的成本，尤其在防止钢水污染方面有明显效果。
Claims (10)
1.一种低碳高强耐火材料，其特征在于，所述耐火材料由以下重量百分比的原料制成：闭孔刚玉50-54%、白刚玉细粉18-22%、活性氧化铝微粉14-18%、金属铝粉8-12%、结合剂2-6%和助剂4-8%。
2.根据权利要求1所述的一种低碳高强耐火材料，其特征在于，所述白刚玉细粉中Al2O3质量分数大于99.15%。
3.根据权利要求1所述的一种低碳高强耐火材料，其特征在于，所述助剂为氮化硅。
4.根据权利要求1所述的一种低碳高强耐火材料，其特征在于，所述闭孔刚玉是由微晶活性α-Al2O3微粉、工业Al2O3细粉和碳酸钙细粉制成的。
5.根据权利要求4所述的一种低碳高强耐火材料，其特征在于，闭孔刚玉的制备步骤如下：
a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉和碳酸钙细粉共同置于研钵中，加水进行研磨成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在105-115℃下烘干220-260min得到第II中间产物；
d）将c）得到的第II中间产物置于1930-1970℃条件下煅烧160-200min，煅烧升温速率为15-20℃/min，空气冷却，得到闭孔刚玉。
6.根据权利要求4或5所述的一种低碳高强耐火材料，其特征在于，微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉的重量比为95：3.5-4.5：0.5-1.5。
7.根据权利要求1所述的一种低碳高强耐火材料，其特征在于，所述结合剂为氧化硅改性酚醛树脂，其是由以下质量比的原料制成：苯酚25-30%、甲醛30-36%、乙二醇15-20%、氧化硅微粉15-20%、γ-氨丙基三乙氧基硅烷5-10%和浓盐酸4-6%。
8.根据权利要求7所述的一种低碳高强耐火材料，其特征在于，所述氧化硅改性酚醛树脂的制备步骤如下：
I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，对其进行超声震荡30-35min，得到氧化硅悬液；
II）将苯酚和甲醛配成溶液，与I）得到的氧化硅悬液混合，再对其进行超声震荡30-35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入浓盐酸，保温25-30min后将温度上升到95-100℃，保温80-100min，得到氧化硅改性酚醛树脂。
9.一种如权利要求1，3，7所述的低碳高强耐火材料的制备工艺，其特征在于，所述制备工艺包括以下步骤：
1）闭孔刚玉的制备：a）将所述微晶活性α-Al2O3微粉、工业Al2O3细粉、碳酸钙细粉共同置于研钵中，加水对其进行研磨，直至成浆；
b）将a）得到的浆液倒入模具中固化，然后脱模得到第I中间产物；
c）将b）得到的第I中间产物在105-115℃下烘干220-260min得到第II中间产物；
d）将d）得到的第II中间产物置于1930-1970℃条件下煅烧230-250min，煅烧升温速率为15-20℃/min，空气冷却，得到闭孔刚玉；
2）氧化硅改性酚醛树脂的制备：I）将氧化硅微粉置于乙二醇溶液中，加入γ-氨丙基三乙氧基硅烷，对其进行超声震荡30-35min，得到氧化硅悬液；
II）将苯酚和甲醛配成溶液，与I）得到的氧化硅悬液混合，再对其进行超声震荡30-35min，得到树脂原液；
III）将II）树脂原液放入四口烧瓶中，加入浓盐酸，保温25-30min后将温度上升到95-100℃，保温80-100min，得到氧化硅改性酚醛树脂；
3）将1）所得闭孔刚玉压碎，与所述白刚玉细粉、活性氧化铝微粉、金属铝粉和助剂混合研磨均匀，加入2）所得的氧化硅改性酚醛树脂结合剂，利用1000t摩擦压砖机或2000t液压压砖机压成砖胚；
4）取出3）所得的砖胚，自然烘干后在180-220℃条件下干燥23.5-24.5h，得到干砖胚；
5）将4）的干砖胚置于氮气气氛炉中，1600-1700℃条件下通氮气保温7.5-8.5h，得到低碳高强耐火材料。
10.根据权利要求9所述的一种低碳高强耐火材料的制备工艺，其特征在于，步骤1）中微晶活性α-Al2O3微粉粒径为12500目以上，步骤2）中氧化硅微粉粒径为15400目以上。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737646.1A CN107473719A (zh) | 2017-08-24 | 2017-08-24 | 一种低碳高强耐火材料及其制备工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737646.1A CN107473719A (zh) | 2017-08-24 | 2017-08-24 | 一种低碳高强耐火材料及其制备工艺 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107473719A true CN107473719A (zh) | 2017-12-15 |
Family
ID=60602420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710737646.1A Pending CN107473719A (zh) | 2017-08-24 | 2017-08-24 | 一种低碳高强耐火材料及其制备工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107473719A (zh) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719093A (zh) * | 2020-06-28 | 2020-09-29 | 无锡市强亚耐火材料有限公司 | 一种超大型煤气净化装置用专用耐火材料及其制备工艺 |
| CN114214482A (zh) * | 2021-12-01 | 2022-03-22 | 钢城集团凉山瑞海实业有限公司 | 一种用于吸附钢包钢水中三氧化二铝夹杂的球团 |
| CN115490528A (zh) * | 2022-10-31 | 2022-12-20 | 安徽瑞泰新材料科技有限公司 | 一种高强度耐火砖及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358911A (en) * | 1993-10-12 | 1994-10-25 | Nalco Chemical Company | Polymeric binders for ceramic processing |
| CN1451634A (zh) * | 2003-05-24 | 2003-10-29 | 北京科技大学 | 一种用于炼铁高炉的氮化硅刚玉质浇注耐火材料 |
| CN1740114A (zh) * | 2004-08-25 | 2006-03-01 | 武汉科技大学 | 一种高炉用赛隆刚玉砖耐火材料及制备方法 |
| CN1919796A (zh) * | 2006-09-04 | 2007-02-28 | 青岛大学 | 一种氧化物陶瓷复相耐火材料 |
| CN104086191A (zh) * | 2014-06-26 | 2014-10-08 | 浙江锦诚耐火材料有限公司 | 一种高炉出铁沟喷补料 |
-
2017
- 2017-08-24 CN CN201710737646.1A patent/CN107473719A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358911A (en) * | 1993-10-12 | 1994-10-25 | Nalco Chemical Company | Polymeric binders for ceramic processing |
| CN1451634A (zh) * | 2003-05-24 | 2003-10-29 | 北京科技大学 | 一种用于炼铁高炉的氮化硅刚玉质浇注耐火材料 |
| CN1740114A (zh) * | 2004-08-25 | 2006-03-01 | 武汉科技大学 | 一种高炉用赛隆刚玉砖耐火材料及制备方法 |
| CN1919796A (zh) * | 2006-09-04 | 2007-02-28 | 青岛大学 | 一种氧化物陶瓷复相耐火材料 |
| CN104086191A (zh) * | 2014-06-26 | 2014-10-08 | 浙江锦诚耐火材料有限公司 | 一种高炉出铁沟喷补料 |
Non-Patent Citations (1)
| Title |
|---|
| 贡长生等: "《现代工业化学》", 31 August 1999, 湖北科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719093A (zh) * | 2020-06-28 | 2020-09-29 | 无锡市强亚耐火材料有限公司 | 一种超大型煤气净化装置用专用耐火材料及其制备工艺 |
| CN114214482A (zh) * | 2021-12-01 | 2022-03-22 | 钢城集团凉山瑞海实业有限公司 | 一种用于吸附钢包钢水中三氧化二铝夹杂的球团 |
| CN115490528A (zh) * | 2022-10-31 | 2022-12-20 | 安徽瑞泰新材料科技有限公司 | 一种高强度耐火砖及其制备方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101429037B (zh) | 一种铝碳滑板砖及其制造方法 | |
| CN107698266B (zh) | 热风炉管道密封料及其制备方法 | |
| CN105254323B (zh) | 一种微孔刚玉‑莫来石陶瓷分离膜支撑体及其制备方法 | |
| CN108610063B (zh) | 高性能莫来石保温耐火浇注料 | |
| CN103332940B (zh) | 铜熔炼炉用半再结合镁铬砖及其制备方法 | |
| CN101219902A (zh) | 环保型干式振动料及其制备方法 | |
| CN111807822B (zh) | 一种添加铝硅合金低温烧制的铝锆碳滑板及其生产方法 | |
| CN110483023B (zh) | 一种微孔化刚玉砖及其制备方法 | |
| CN110698179A (zh) | 一种高性能镁碳砖及其制备方法 | |
| CN108751957A (zh) | 一种精炼钢包用的无碳高纯铝镁机压砖及其制备方法 | |
| CN105198457A (zh) | 一种转炉挡渣内水口砖及其制备方法 | |
| CN101747065A (zh) | 一种镁碳砖及其制备方法 | |
| CN103588492A (zh) | 一种精炼钢包衬用优质无碳铝镁尖晶石砖及其制备方法 | |
| CN107473719A (zh) | 一种低碳高强耐火材料及其制备工艺 | |
| CN108178641A (zh) | 一种中间包干式料及其制备方法 | |
| CN101665365B (zh) | 碳素保护套管耐火材料及其制备方法 | |
| JP5943032B2 (ja) | 軽量断熱アルミナ・マグネシア質耐火物の製造方法 | |
| CN101423412B (zh) | 低温烧成制备高性能氧化硅结合碳化硅耐火材料的方法 | |
| CN104961489A (zh) | 环保节能型铁水包用半轻质耐火浇注料 | |
| CN104446530A (zh) | 一种钢包渣线耐火砖的制备工艺 | |
| CN109053166A (zh) | 一种高纯高性能中性干振料及其制备方法和使用方法 | |
| CN104311053A (zh) | 连铸机中间包用高强耐冲刷浇注料 | |
| CN105152663B (zh) | 一种氮化硅结合氮化硅铁材料的制备方法 | |
| KR20160064163A (ko) | 시알론 매트릭스를 갖는 내화 제품 | |
| CN113087538B (zh) | 一种含微孔骨料的钢包工作衬预制砖 |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171215 |
|
| RJ01 | Rejection of invention patent application after publication |