CN114105657A - High-strength wear-resistant coating and application thereof - Google Patents
High-strength wear-resistant coating and application thereof Download PDFInfo
- Publication number
- CN114105657A CN114105657A CN202111428419.3A CN202111428419A CN114105657A CN 114105657 A CN114105657 A CN 114105657A CN 202111428419 A CN202111428419 A CN 202111428419A CN 114105657 A CN114105657 A CN 114105657A
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant
- parts
- spread
- aggregate
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 129
- 239000000843 powder Substances 0.000 claims abstract description 60
- 239000002893 slag Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000005245 sintering Methods 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- 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 21
- 239000011230 binding agent Substances 0.000 claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000011819 refractory material Substances 0.000 claims abstract description 16
- 239000004014 plasticizer Substances 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 30
- 239000011449 brick Substances 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 17
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 16
- 229910052593 corundum Inorganic materials 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 9
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 8
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 8
- 150000004645 aluminates Chemical class 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 7
- 229910000278 bentonite Inorganic materials 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 239000010431 corundum Substances 0.000 claims description 7
- 239000011029 spinel Substances 0.000 claims description 7
- 229910052596 spinel Inorganic materials 0.000 claims description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- -1 boron anhydride Chemical class 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims 2
- 238000005299 abrasion Methods 0.000 abstract description 10
- 239000012615 aggregate Substances 0.000 description 57
- 239000002994 raw material Substances 0.000 description 38
- 239000000571 coke Substances 0.000 description 21
- 239000002699 waste material Substances 0.000 description 18
- 238000010276 construction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000005266 casting Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 6
- 229910003465 moissanite Inorganic materials 0.000 description 6
- 238000012216 screening Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 3
- 229910001570 bauxite Inorganic materials 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000010427 ball clay Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000012257 stirred material Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000003466 welding Methods 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
- C04B35/66—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
- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
-
- 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
-
- 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
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- 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
- C04B2235/34—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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
-
- 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
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
-
- 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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
-
- 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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/448—Sulphates or sulphites
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention particularly relates to a high-strength wear-resistant coating and application thereof, belonging to the technical field of refractory materials, wherein the coating comprises the following components: main materials and auxiliary materials; the main materials comprise: the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder; 1-5 parts of silicon micropowder; 1-5 parts of alumina micro powder; 10-15 parts of a binding agent; 1-3 parts of a plasticizer; the total weight of the main materials is 100 parts; the auxiliary materials comprise: 0.1 to 0.5 percent of the sintering aid, 0.1 to 0.3 percent of the water reducing agent and 4 to 7 percent of the solvent; the coating prepared by the proportion provided by the application has the normal-temperature compressive strength of 90-150MPa and the high-temperature flexural strength of 5-10 MPa; the consistency is 110-130 mm; the normal temperature abrasion loss is 2.8cm3‑4cm3(ii) a The slag runner of the blast furnace can be used for 3 to 5 years generally.
Description
Technical Field
The invention belongs to the technical field of refractory materials, and particularly relates to a high-strength wear-resistant coating and application thereof.
Background
The steel smelting system has a plurality of containers and transportation channels which are subjected to material erosion and abrasion for a long time, such as blast furnace slag-flushing ditch linings, blast furnace stock bin tank linings, coke dry quenching furnaces and coke tank linings for transporting coke, and the like. The use temperature of some of the areas is higher, for example, the highest temperature can reach 1000 ℃ when the coke tank lining is contacted with red coke; some of the slag sluicing water which needs to bear corrosive acid-base liquid and flammable explosive gas, such as a blast furnace slag sluicing water has certain corrosivity and is easy to generate hydrogen and carbon monoxide; some materials stored are easy to freeze and harden due to poor heat insulation performance, such as a blast furnace bin. The lining of the container contacted with the materials is generally a metal lining plate, the metal lining plate has the advantages of high strength and the defects of too fast heat conduction, poor heat insulation performance, no acid and alkali corrosion resistance and unsuitability for a high-temperature environment of more than 500 ℃, namely the service life of the container under long-term high-temperature material scouring is greatly reduced by using the high-temperature resistant alloy lining plate. The service life of the metal lining plate of the slag runner is usually 6-8 months, and the alloy lining plate of the coke pot begins to be frequently maintained and replaced after being used for 3 months, thereby bringing great loss to production.
In order to prolong the service life, the prior art changes an alloy lining plate into a refractory castable, such as a high-strength wear-resistant castable used for a rear section in a blast furnace granulated slag punching groove, which utilizes waste ceramics as a main raw material to produce the wear-resistant castable for the rear section in the blast furnace granulated slag groove, wherein the Chinese patent application 201810653827.0 discloses that the alloy lining plate is made of a refractory castable; the Chinese patent application 201910015905.9 discloses a castable for manufacturing a coke pot lining and a method for manufacturing the coke pot lining, wherein the refractory coke pot lining is cast by using a high-strength mullite lightweight castable. The methods adopt a method of integrally pouring refractory materials to replace an alloy lining plate, construction can be carried out only by manufacturing a pouring mold, time and labor are wasted, once a refractory lining body after integral pouring is damaged, the refractory lining body is usually only partially damaged, and the refractory lining body needs to be poured again by a mold, so that the cost is high.
There are many related technologies for using waste refractory materials as refractory raw materials, such as the above-mentioned chinese patent application 201810653827.0 and chinese patent application 201910743193.2, a method for preparing tundish magnesium coating material by using waste magnesium aluminate spinel as raw material, and these methods almost all process the waste refractory materials by removing slag, sorting, crushing and screening to obtain particles with required particle size as raw material, because many surfaces of the waste refractory bricks removed from a steel-making furnace are adhered with steel slag, which is removed in the traditional waste refractory recovery process, this also causes waste to a certain extent.
For example, in the chinese patent application 201510109318.8, ground steel slag with an average particle size of 1-3 μm is added as a superfine wear-resistant admixture, but the steel slag with the particle size has a large activity and actively participates in a sintering reaction at a temperature of more than 500 ℃, so that the material has a large volume expansion and further has unfavorable phenomena such as cracking, and thus the material cannot be applied to a use environment at a temperature of more than 500 ℃.
Disclosure of Invention
The application aims to provide a high-strength wear-resistant coating and application thereof, which can play a good repairing role in the casting linings of blast furnace slag sluiceways, storage bins, coke tanks and other containers, and do not need integral casting; can also be used for manufacturing linings to replace metal lining plates.
The embodiment of the invention provides a high-strength wear-resistant coating material, which comprises the following components in parts by weight: main materials and auxiliary materials;
the main materials comprise the following components in parts by weight:
the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder;
1-5 parts of silicon micropowder;
1-5 parts of alumina micro powder;
10-15 parts of a binding agent;
1-3 parts of a plasticizer;
the total weight of the main materials is 100 parts;
the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
Optionally, Al in the wear-resistant material2O3The mass fraction of the + SiC is more than or equal to 45 percent.
Optionally, the wear resistant material comprises a high alumina or silicon carbide based refractory material.
Optionally, the wear-resistant material is a refractory brick crushed material with compressive strength not less than 100MPa, and the refractory brick crushed material comprises corundum brick crushed material, spinel brick crushed material or silicon nitride and silicon carbide brick crushed material.
Optionally, the wear-resistant aggregate comprises a first wear-resistant aggregate, a second wear-resistant aggregate and a third wear-resistant aggregate; the granularity of the first wear-resistant aggregate is more than 1mm and less than or equal to 3mm, and the mass part of the first wear-resistant aggregate is 20-35 parts; the granularity of the second wear-resistant aggregate is more than 0.5mm and less than or equal to 1mm, and the mass part of the second wear-resistant aggregate is 8-20 parts; the granularity of the third wear-resistant aggregate is more than 0.074mm and less than or equal to 0.5mm, and the third wear-resistant aggregate is 15-30 parts by mass; the granularity of the wear-resistant powder is less than or equal to 0.074 mm.
Optionally, the third wear-resistant aggregate further comprises steel slag.
Optionally, the particle size of the binding agent is less than or equal to 0.074mm, the binding agent is cement and/or slag, and the cement comprises at least one of aluminate cement, phosphate cement and sulphoaluminate cement; and the mass coefficient K of the slag is more than or equal to 1.6.
Optionally, the auxiliary material further comprises an exciting agent, wherein the exciting agent accounts for 6-10% of the slag by weight.
Optionally, the sintering aid comprises: at least one of boron anhydride and sericite;
the plasticizer comprises at least one of bentonite and Guangxi soil;
the water reducing agent comprises at least one of sodium hexametaphosphate and high-efficiency naphthalene water reducing agent FDN.
Based on the same inventive concept, the embodiment of the invention also provides an application of the high-strength wear-resistant coating, the application comprises the following steps of applying the coating to the preparation or repair of the lining of each device in the steel smelting system, and the coating comprises: main materials and auxiliary materials;
the main materials comprise the following components in parts by weight:
the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder;
1-5 parts of silicon micropowder;
1-5 parts of alumina micro powder;
10-15 parts of a binding agent;
1-3 parts of a plasticizer;
the total weight of the main materials is 100 parts;
the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the embodiment of the invention provides a high-strength wear-resistant coating material, which comprises the following components in parts by weight: main materials and auxiliary materials; the main materials comprise the following components in parts by weight: the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder; 1-5 parts of silicon micropowder; 1-5 parts of alumina micro powder; 10-15 parts of a binding agent; 1-3 parts of a plasticizer; the total weight of the main materials is 100 parts; the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight; the coating prepared by the proportion provided by the application has the advantages of normal-temperature compressive strength of 90-150MPa, high-temperature flexural strength of 5-10MPa and high strength; the consistency is 110-130mm, and the coating construction performance is good; the normal temperature abrasion loss is 2.8cm3-4cm3The wear resistance is good; the slag runner can be used for 3-5 years in a blast furnace slag runner generally, and has good durability.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
according to an exemplary embodiment of the present invention, there is provided a high-strength wear-resistant spread, the spread comprising: main materials and auxiliary materials; the main materials comprise the following components in parts by weight: the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder; 1-5 parts of silicon micropowder; 1-5 parts of alumina micro powder; 10-15 parts of a binding agent; 1-3 parts of a plasticizer; the total weight of the main materials is 100 parts; the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
Wear-resistant material: the coating is mainly used as aggregate and partial matrix of the coating, and the main components are corundum, silicon carbide particles and fine powder, so that the coating has high strength, excellent wear resistance and certain erosion resistance in a wider temperature range. The reason for controlling the mass part of the wear-resistant aggregate to be 43-85 parts is that the aggregate has large particles and high strength, plays a skeleton supporting role in the material and bears most of the damage of scouring wear, so the mass fraction is higher than that of the powder, and the reason for controlling the mass part of the wear-resistant powder to be 10-25 parts is that the powder in the mass part can just fill the gaps formed by the piled aggregates, so that the finished material has high density, has certain fluidity after being added with water and is convenient for coating construction.
Silicon micropowder and alumina micropowder: the micro powder is used together with cement binder. The silica powder has higher surface area, can provide more nucleation sites for the hydration product of the calcium aluminate cement, is beneficial to the crystallization of the hydration product, improves the cementation between coating material particles, and further improves the strength. The smaller particle size of the alumina micro powder is in different particle compositions, so that the pores among large particles can be effectively filled, the ceramic combination of the coating matrix can be strengthened, and the erosion resistance, the wear resistance and the mechanical strength of the sample are improved. The reason for controlling the mass fraction of the silicon micropowder to be 1-5 is that the silicon dioxide micropowder can become a liquid phase at a high temperature, and the viscosity of mass transfer between aggregate and fine powder particles is reduced, so that the mass transfer rate is enhanced, the sintering between the particles is promoted, and the bonding capability of staggered interlocking among the particles is enhanced, so that the medium temperature strength of the castable is improved, and the reason for controlling the mass fraction of the aluminum oxide micropowder to be 1-5 is that according to the particle stacking theory, the powder can further fill the stacking gap of the powder on the basis of the powder filling the aggregate stacking gap, and the volume density of the material is further increased.
Cement or slag binder: the adhesive is used for cementing wear-resistant aggregate and powder, and water can be added to stir into plastic slurry. The Portland cement has high grade, good freezing resistance, good drying shrinkage, good wear resistance and difficult generation of cracks; the aluminate cement has extremely fast heat release rate, good high temperature resistance and high early strength; the sulphoaluminate cement has strong sulphuric acid corrosion resistance and does not separate out free calcium hydroxide. Different types of cement binders can be selected according to different use scenes, for example, aluminate cement can be used for repairing a refractory lining of a coke tank, silicate cement can be used for lining a blast furnace bunker, and sulphoaluminate cement can be used for repairing a blast furnace slag runner castable lining or manufacturing a new lining so as to resist the corrosion of acid and alkali. The slag is industrial waste slag discharged in the iron-making process, has chemical composition similar to that of portland cement clinker, and has good potential activity, so the slag is mainly used for replacing the portland cement. The mass portion of the binding agent is controlled to be 10-15 portions, main phases of monocalcium aluminate (CA) and calcium dialuminate (CA2) in the binding agent can generate hydration reaction, hydration products are mutually connected in a staggered mode to form a crystal-gel network structure, and particles in a castable system are connected to obtain strength.
Four-stage size grading of abrasive and plasticizer: the refractory coating is pasty, is manually or mechanically coated on functional materials on the surfaces of other lining bodies, is different from a casting material, and has high viscosity, cannot flow, cannot have too high thixotropic properties such as shear thinning and the like. Therefore, the reasonable grain size distribution is used to make the coating material reach a certain consistency, and the bentonite or Guangxi soil is used to increase the viscoplasticity, thereby achieving good construction performance. The mass portion of the plasticizer is controlled to be 1-3, and clay minerals such as bentonite, Guangxi soil and the like can improve the viscosity of water in the coating material under the condition of 4-7% of water addition amount of the coating material to form a firm water film, increase the electrostatic repulsion among particles of the material, form a stable sol state and greatly improve the plasticity and the adhesiveness of the material.
A sintering aid: because the main use temperature of the coating material is below 1000 ℃, the wear-resistant material is not easy to sinter in the range, and a sintering aid is added to reduce the sintering temperature. The boric anhydride and the sericite have the property similar to clay, so that the pug can be sintered at a medium-low temperature (500-1000 ℃) to form a ceramic material, and the pug is favorable for molding and has strong plasticity. And the boric anhydride or the sericite can prevent sintering shrinkage caused by adding bentonite or Guangxi soil.
Water reducing agent: on the premise of ensuring good construction performance of the coating material, the water adding amount is reduced as much as possible, otherwise, the material generates air holes and defects due to more water adding amount, and the strength is influenced. The sodium hexametaphosphate is suitable for an aluminum micro powder system, the FDN is suitable for a silicon micro powder system, and the sodium hexametaphosphate and the FDN are compounded to achieve a good water reducing effect.
As an alternative embodiment, the abrasive wear-resistant aggregates and powders may consist of refractory materials of the aluminous or silicon carbide type, such as brown alumina, bauxite, SiC; or obtained by crushing and screening refractory bricks with compressive strength of more than 100MPa, such as waste corundum bricks, spinel bricks, silicon nitride and silicon carbide bricks after being used in steel furnaces and dry coke quenching furnaces, wherein the mass fraction of Al2O3+ SiC is more than or equal to 45%.
As an optional embodiment, the wear-resistant material adopts a four-level grain size distribution, and specifically, the wear-resistant aggregate comprises a first wear-resistant aggregate, a second wear-resistant aggregate and a third wear-resistant aggregate; hm is less than or equal to 3mm, and the mass part of the first wear-resistant aggregate is 20-35; the granularity of the second wear-resistant aggregate is more than 0.5mm and less than or equal to 1mm, and the mass part of the second wear-resistant aggregate is 8-20 parts; the granularity of the third wear-resistant aggregate is more than 0.074mm and less than or equal to 0.5mm, and the third wear-resistant aggregate is 15-30 parts by mass; the granularity of the wear-resistant powder is less than or equal to 0.074 mm.
The particles and the powder with different particle size distributions are matched, so that the refractory raw materials are closely stacked, the compactness is improved, the coating has the characteristic of Bingham fluid with a certain yield value, and the construction is convenient.
In actual operation, the wear-resistant aggregate with the granularity of more than 0.074mm and less than or equal to 0.5mm can partially or completely replace a refractory raw material by steel slag, and the steel slag can be the waste converter slag or refining slag of a steel mill or the steel slag adhered to a waste brick after the steel mill is used. Because the steel slag adhered to the waste refractory material is not required to be removed, the steel slag is only required to be ground into the required granularity range, and the cost of the raw materials is further reduced.
The wear-resistant aggregate with the granularity of more than 0.074mm and less than or equal to 0.5mm can be replaced by the steel slag, the chemical composition and the mineral composition of the steel slag are similar to those of cement clinker, various physical and mechanical indexes such as wear resistance and the like are more than or equal to those of common refractory raw materials, the range of the granularity of more than 0.074mm and less than or equal to 0.5mm is controlled, the activity of the steel slag is reduced, the steel slag only plays a role of aggregate and is not reacted with other substances as much as possible, and the steel slag can be suitable for the use environment with the temperature of 500 plus 1000 ℃.
As an alternative embodiment, the particle size of the silicon micro powder and the alumina micro powder is less than or equal to 0.044 mm.
As an optional implementation mode, the bonding agent is cement powder with the particle size of less than or equal to 0.074mm, and the cement is one or more of aluminate cement, phosphate cement and sulphoaluminate cement.
In the concrete implementation, the binding agent can partially or completely replace cement powder by slag, the source of the slag is industrial slag discharged in a blast furnace ironmaking process, and the mass coefficient K of the slag is (CaO + MgO + Al)2O3)％/(SiO2+MnO+TiO2)％
More than or equal to 1.6, and sodium carbonate accounting for 6-10% of the slag mass is required to be added as an excitant.
As an alternative embodiment, the sintering aid is one or two of the following: boric anhydride, sericite; the plasticizer is at least one of the following: the bentonite and Guangxi soil are characterized in that the Guangxi soil is 'Guangxi special grade' Nanning ball clay which has the biggest characteristic that the granularity analysis of fine granularity and good plasticity is usually expressed that the-2 mu m size fraction accounts for more than 85 percent, and sometimes reaches 100 percent, and concretely, the Guangxi ball clay is high-quality combined clay for refractory materials in the document, which is published in building materials geology, 1996 year 5 and Liu Yan Gong of authors; the water reducing agent is at least one of the following components: sodium hexametaphosphate and high-efficiency naphthalene water reducing agent FDN.
The coating raw materials provided by the embodiment of the application are obtained by crushing and screening refractory bricks with compressive strength of more than 100MPa such as waste corundum bricks, spinel bricks and silicon nitride combined silicon carbide bricks after a steel furnace and a coke dry quenching furnace are used as frameworks, and meanwhile, the coating raw materials are matched with silicon micro powder and aluminum micro powder in specific parts by weight, so that the coating has higher strength, high scour resistance and wear resistance, and on the other hand, the coating raw materials made of waste refractory materials are used for saving energy, reducing emission and reducing cost. The use of different types of cement as the bonding agent brings better low-temperature or high-temperature bonding strength, so that the application range of the repair material is wider, and the adoption of slag to replace cement further reduces the raw material cost and saves energy and reduces emission. The sintering aid is added to reduce the sintering temperature of the coating, so that the coating has higher compactness and strength at lower baking and using temperatures. The plasticizer is added, so that the coating has good construction performance, can be uniformly spread and can be well attached to the surface of the lining body.
According to another exemplary embodiment of the present invention, there is also provided a use of a high strength, wear resistant spread comprising applying the spread to the preparation or repair of a lining of equipment in a steelmaking system, the spread comprising: main materials and auxiliary materials; the main materials comprise the following components in parts by weight: the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder; 1-5 parts of silicon micropowder; 1-5 parts of alumina micro powder; 10-15 parts of a binding agent; 1-3 parts of a plasticizer; the total weight of the main materials is 100 parts; the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
The high-strength wear-resistant coating material and the application thereof will be described in detail with reference to examples, comparative examples and experimental data.
Example 1
The high-strength wear-resistant coating comprises the following raw materials in percentage by weight:
80 percent of wear-resistant aggregate and powder, wherein the grain size of the wear-resistant aggregate is more than or equal to 30 percent of hmm and less than or equal to 3mm, the grain size of the wear-resistant aggregate is more than 0.5mm and less than or equal to 1mm, the grain size of the wear-resistant aggregate is more than 0.074mm and less than or equal to 0.5mm, and the grain size of the wear-resistant powder is less than or equal to 16 percent of 0.074 mm; the aggregate and the powder are obtained by removing, crushing and screening the steel ladle wall and the ladle bottom by using rear bricks, and Al2O3The mass fraction of the + SiC is more than or equal to 60 percent, and the mass fraction of the steel slag in the wear-resistant aggregate with the granularity of more than 0.074mm and less than or equal to 0.5mm is about 30 percent.
3 percent of silicon micropowder with the granularity less than or equal to 0.044 mm;
3 percent of alumina micro powder with the granularity less than or equal to 0.044 mm;
12.5 percent of aluminate cement;
1.5 percent of bentonite;
the sum of the weight percentages of the raw materials is 100 percent.
Sodium hexametaphosphate plus FDN accounting for 0.2 percent of the total weight of the raw materials and boric anhydride accounting for 0.2 percent of the total weight of the raw materials are added.
The raw materials in percentage by weight are put into a forced stirrer to be uniformly mixed, and are packaged and transported by ton bags. Uniformly welding anchoring parts on a lining iron shell of the coke tank in advance, putting the mixture into a stirrer when the stirring device is used in a construction site, adding 5% of water, stirring for 3min, and uniformly lining the inside of the coke tank by adopting a mechanical smearing mode after discharging, wherein the average thickness is 70 mm. After finishing coating, the coating is naturally dried for 36 hours, then baked to 800 ℃, and kept warm for 16 hours for use.
Example 2
The high-strength wear-resistant coating comprises the following raw materials in percentage by weight:
the composite material comprises wear-resistant aggregate and powder 81 percent, wherein the grain size of the wear-resistant aggregate is more than 1mm and less than or equal to 3mm, the grain size of the wear-resistant aggregate is more than 0.5mm and less than or equal to 1mm, the grain size of the wear-resistant aggregate is more than 0.074mm and less than or equal to 0.5mm, the grain size of the wear-resistant aggregate is 20 percent, and the grain size of the wear-resistant powder is less than or equal to 0.074mm, the grain size of the wear-resistant powder is 14 percent; aggregate and powder are both brown corundum raw materials, A12O3The mass fraction is more than or equal to 90 percent
2.5 percent of silicon micropowder with the granularity less than or equal to 0.044 mm;
3 percent of alumina micro powder with the granularity less than or equal to 0.044 mm;
12% of Portland cement;
guangxi soil 1.5%;
the sum of the weight percentages of the raw materials is 100 percent.
Sodium hexametaphosphate plus FDN accounting for 0.3 percent of the total weight of the raw materials and boric anhydride accounting for 0.2 percent of the total weight of the raw materials are added.
The raw materials in percentage by weight are put into a forced stirrer to be uniformly mixed, and are packaged and transported by ton bags. The anchoring parts are uniformly welded on the lining iron shell of the blast furnace material bin in advance, when the device is used on a construction site, the mixture is put into a stirrer, 4.5 percent of water is added for stirring for 3min, the lining is uniformly built in the blast furnace material bin by adopting a mechanical smearing mode after discharging, and the average thickness is 50 mm. After finishing coating, the coating is naturally dried for 24 hours, then baked to 800 ℃, and kept warm for 16 hours for use.
Example 3
The high-strength wear-resistant coating comprises the following raw materials in percentage by weight:
80 percent of wear-resistant aggregate and powder, wherein the grain size of the wear-resistant aggregate is more than 1mm and less than or equal to 3mm and is 28 percent, the grain size of the wear-resistant aggregate is more than 0.5mm and less than or equal to 1mm and is 15 percent, the grain size of the wear-resistant aggregate is more than 0.074mm and is less than or equal to 1mm and is less than or equal to25 percent of wear-resistant aggregate with the particle size of 0.5mm and 12 percent of wear-resistant powder with the particle size of less than or equal to 0.074 mm; the aggregate and the powder are obtained by dismantling, crushing and screening rear bricks for an RH vacuum refining furnace, and Al is obtained2O3The mass fraction of the + SiC is more than or equal to 45 percent, and SiC raw material accounting for about 20 percent of the mass fraction is added into the wear-resistant aggregate with the granularity of more than 0.5mm and less than or equal to 1 mm.
2.5 percent of silicon micropowder with the granularity less than or equal to 0.044 mm;
2.5 percent of alumina micro powder with the granularity less than or equal to 0.044 mm;
13% of sulphoaluminate cement;
2% of Guangxi soil;
the sum of the weight percentages of the raw materials is 100 percent.
Sodium hexametaphosphate plus FDN accounting for 0.3 percent of the total weight of the raw materials and sericite accounting for 0.2 percent of the total weight of the raw materials are added.
The raw materials in percentage by weight are put into a forced stirrer to be uniformly mixed, the raw materials are packaged and transported in ton bags, when the mixed material is used in a construction site, the mixed material is put into the stirrer, 6% of water is added into the mixed material to be stirred for 3min, the mixed material is discharged and then is smeared and repaired at the damaged position of a casting lining body of a blast furnace slag runner in a manual smearing mode, and the average thickness is 30 mm. After finishing coating, the coating is naturally dried for 24h, and then is baked to 800 ℃ and is preserved for 8h for use.
Comparative example 1
The high-strength wear-resistant castable comprises the following raw materials, by weight, 45% of waste ceramic aggregate, 25% of brown fused alumina, 4.5% of silicon carbide fine powder, 16% of calcium aluminate cement, 2% of chromium oxide fine powder, 3% of heat-resistant steel fiber, 4% of silicon dioxide fine powder, and a water reducing agent and a retarder.
Firstly, putting the raw materials in percentage by weight into a forced mixer, uniformly mixing, packaging and transporting in ton bags, putting the mixture into the forced mixer when the forced mixer is used in a construction site, adding water according to the specified water addition amount, stirring for 2-3 min, discharging, filling into a mold which is supported in advance, and vibrating and compacting by a vibrating rod. And (4) carrying out natural curing on the belt formwork for more than 12 hours, and then removing the formwork, wherein the belt formwork can be put into normal use after being removed. The material is mainly used for the middle and rear sections of the blast furnace granulated slag punching groove lining.
Comparative example 2
The castable for manufacturing the coke pot lining comprises the following raw materials in percentage by weight, namely, bauxite with the granularity within the range of 5-8 mm: 10 percent; calcium hexaluminate having a particle size in the range of 3mm to 5 mm: 38 percent; calcined quartz with a particle size in the range of 1mm to 3 mm: 8 percent; forsterite having a particle size of 1mm or less: 15 percent; magnesium aluminate spinel with 180 mesh particle size: 10 percent; ethyl silicate: 7 percent; hydrated alumina with particle size less than 0.088 mm: 8 percent; dextrin: 2 percent; water reducing agent: 2 percent.
And then putting the materials into a stirrer to be mixed and stirred for 5-8 minutes, uniformly mixing ethyl silicate and water (the water amount is 4-6 percent of the total weight of the materials), stirring the mixture of the ethyl silicate and the water with the materials for 3-5 minutes, and injecting the stirred material obtained after stirring into a fixed mould to be vibrated and molded. And then, casting, molding and curing the blank material obtained after the vibration molding for 3 days, then demolding to obtain a coke tank lining model, baking the coke tank lining model at 110 ℃ for 24 hours, then preserving heat at 300 ℃ for 24 hours, and naturally cooling to put into use.
Experimental example:
the volume density, apparent porosity, high-temperature flexural strength, room-temperature compressive strength, abrasion loss and consistency of the spread provided in examples 1 to 3 and the castable provided in comparative examples 1 to 2 were measured, and the test results are shown in the following tables.
In the table, apparent porosity is a ratio of the volume of all open pores in the refractory brick to the total volume thereof, and a higher apparent porosity indicates a poorer densification of the refractory material, but a good heat-insulating property.
The high-temperature rupture strength means that the strip-shaped refractory brick sample is heated to the test temperature of 1000 ℃, the temperature is kept for 0.5h at the test temperature, stress is applied to the middle part of the sample at a constant loading rate until the sample is broken, and the maximum stress value is measured. The higher the high temperature rupture strength, the better the strength performance of the refractory brick at high temperature.
The abrasion loss was measured by vertically spraying 1kg of silicon carbide sand onto the flat surface of a refractory sample through a sand blast pipe with compressed air of 450kPa to measure the volume of the refractory sample abraded. The smaller the abrasion loss, the better the abrasion resistance of the refractory specimen.
The consistency is also called fluidity, and refers to the measurement of the fluidity of the refractory granules and powder under the action of the dead weight (and/or) external force after the refractory granules and powder are added with water or other liquid binders and are uniformly stirred. The general measuring method is that after the refractory material is added with water or other liquid binder and stirred uniformly, the refractory material is put into a circular truncated cone-shaped mould with the diameter of a lower opening of 100mm on a platform, the mould is removed, the slurry begins to spread, and the average spreading diameter of the slurry is measured. The thickness of the common castable is more than or equal to 150mm, and the flowability is good; the coating material is required to have high viscosity, cannot flow, cannot have too high thixotropic properties such as shear thinning and the like, so the consistency is preferably controlled to be 110-130 mm.
As can be seen from the above table, the coating materials provided in examples 1 to 3 had a bulk density of 2.4 to 2.6 g.cm-3, an apparent porosity of 14.2 to 15.3%, a room-temperature compressive strength of 95.7 to 113MPa, a high-temperature flexural strength of 5.8 to 7.4MPa, an abrasion loss of 2.8 to 3.1cm3, and a consistency of 118 and 132 mm.
The high-strength wear-resistant castable provided by the comparative example 1 adopts waste ceramics as aggregate, is combined with aluminate cement, has low compressive strength, high-temperature rupture strength and wear loss, but has the consistency of 163mm, namely has good fluidity, and can only be used for casting construction, and when the castable lining is partially damaged, the castable lining cannot be repaired in time.
The castable for manufacturing the coke pot lining, which is provided by the comparative example 2, adopts high bauxite, calcium hexaluminate and calcined quartz as raw materials, so that the cost is higher, the normal-temperature compressive strength, the high-temperature rupture strength and the wear resistance are general, and the heat preservation property is better. The consistency reaches 151mm, and the vibration casting molding is also needed, so that the material cannot be directly used for repairing local damage.
Compared with a comparative example, the strength of the coating material in the embodiments 1 to 3 is more than or equal to that of the casting material, the abrasion loss is less than that of the casting material, the local damage part of the casting material can be directly coated and repaired during construction, an anchoring part can be welded on an iron plate, a tortoise shell net is paved, and the whole lining can be manufactured, so that the construction is convenient and flexible. The method is applied to areas such as blast furnace slag sluiceways, bins, coke tanks and the like, can greatly prolong the service life, save the overhaul time, reduce the production cost, and is favorable for stable production and improvement of the operation rate.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
(1) the coating material provided by the embodiment of the invention is prepared by crushing and screening refractory bricks with compressive strength of over 100MPa such as waste corundum bricks, spinel bricks, silicon nitride and silicon carbide-bonded bricks after a steel furnace and a coke dry quenching furnace are used to obtain particles serving as a framework, and meanwhile, the silicon micro powder and the aluminum micro powder in specific parts by weight are matched, so that the coating material has high strength, high scouring resistance and wear resistance, and on the other hand, the waste refractory materials are used as raw materials, thereby being beneficial to energy conservation and emission reduction and reducing the cost. The use of different types of cement as the bonding agent brings better low-temperature or high-temperature bonding strength, so that the application range of the repair material is wider, and the adoption of slag to replace cement further reduces the raw material cost and saves energy and reduces emission. The sintering aid is added to reduce the sintering temperature of the coating, so that the coating has higher compactness and strength at lower baking and using temperatures. The plasticizer is added, so that the coating has good construction performance, can be uniformly spread and can be well attached to the surface of the lining body;
(2) the normal-temperature compressive strength of the coating material provided by the embodiment of the invention is 90-150MPa, the high-temperature rupture strength is 5-10MPa, and the strength is high; the consistency is 110-130mm, and the coating construction performance is good; the normal temperature abrasion loss is 2.8-4cm3, and the wear resistance is good; the slag flushing channel can be used for 3-5 years in general in a blast furnace, and has good durability; and most raw materials of the coating can be obtained by recycling waste refractory materials, so that the coating has the advantages of energy conservation, emission reduction, lower production cost and contribution to popularization and application.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A high strength, wear resistant spread, said spread comprising: main materials and auxiliary materials;
the main materials comprise the following components in parts by weight:
the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder;
1-5 parts of silicon micropowder;
1-5 parts of alumina micro powder;
10-15 parts of a binding agent;
1-3 parts of a plasticizer;
the total weight of the main materials is 100 parts;
the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
2. The high strength, wear resistant spread of claim 1, wherein said wear resistant spread is Al2O3The mass fraction of the + SiC is more than or equal to 45 percent.
3. The high strength, wear resistant spread of claim 2, wherein the wear resistant spread comprises a refractory material of the group consisting of aluminous or silicon carbide.
4. The high-strength wear-resistant coating according to claim 2, wherein the wear-resistant material is a broken refractory brick with a compressive strength of not less than 100MPa, and the broken refractory brick comprises a broken corundum brick, a broken spinel brick or a broken silicon nitride and silicon carbide brick.
5. The high strength wear resistant spread of claim 1, wherein the wear resistant aggregate comprises a first wear resistant aggregate, a second wear resistant aggregate, and a third wear resistant aggregate; the granularity of the first wear-resistant aggregate is less than or equal to 3mm and is more than 1mm, and the mass part of the first wear-resistant aggregate is 20-35 parts; the granularity of the second wear-resistant aggregate is less than or equal to 1mm when the granularity is more than 0.5mm, and the mass part of the second wear-resistant aggregate is 8-20 parts; the granularity of the third wear-resistant aggregate is less than or equal to 0.5mm and is less than or equal to 0.074mm, and the third wear-resistant aggregate is 15-30 parts by mass; the granularity of the wear-resistant powder is less than or equal to 0.074 mm.
6. The high strength wear resistant spread of claim 5, wherein the third wear resistant aggregate further comprises steel slag.
7. The high strength wear resistant spread of claim 1, wherein the binder has a particle size of 0.074mm or less, the binder being cement and/or slag, the cement comprising at least one of aluminate cement, phosphate cement and sulphoaluminate cement; and the mass coefficient K of the slag is more than or equal to 1.6.
8. The high-strength wear-resistant spread according to claim 7, wherein the auxiliary material further comprises an activator, wherein the activator is 6-10% by weight of the slag.
9. The high strength, wear resistant spread of claim 1, wherein the sintering aid comprises: at least one of boron anhydride and sericite;
the plasticizer comprises at least one of bentonite and Guangxi soil;
the water reducing agent comprises at least one of sodium hexametaphosphate and high-efficiency naphthalene water reducing agent FDN.
10. Use of a high strength, wear resistant spread comprising applying the spread to the preparation or repair of an inner lining of equipment in a steel smelting system, the spread comprising: main materials and auxiliary materials;
the main materials comprise the following components in parts by weight:
the wear-resistant material comprises 43-85 parts of wear-resistant aggregate and 10-25 parts of wear-resistant powder;
1-5 parts of silicon micropowder;
1-5 parts of alumina micro powder;
10-15 parts of a binding agent;
1-3 parts of a plasticizer;
the total weight of the main materials is 100 parts;
the auxiliary materials comprise a sintering aid, a water reducing agent and a solvent, wherein the sintering aid accounts for 0.1-0.5% of the main material, the water reducing agent accounts for 0.1-0.3% of the main material, and the solvent accounts for 4-7% of the main material by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111428419.3A CN114105657A (en) | 2021-11-26 | 2021-11-26 | High-strength wear-resistant coating and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111428419.3A CN114105657A (en) | 2021-11-26 | 2021-11-26 | High-strength wear-resistant coating and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114105657A true CN114105657A (en) | 2022-03-01 |
Family
ID=80370769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111428419.3A Pending CN114105657A (en) | 2021-11-26 | 2021-11-26 | High-strength wear-resistant coating and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114105657A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043626A (en) * | 2022-06-24 | 2022-09-13 | 华新水泥股份有限公司 | Ordinary silicate-based inorganic wear-resistant coating and preparation method thereof |
| CN118221410A (en) * | 2024-04-19 | 2024-06-21 | 东莞远东干浆制品有限公司 | Waterproof acid-resistant mortar for repairing municipal pipelines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010167A (en) * | 2010-09-14 | 2011-04-13 | 浙江锦诚耐火材料有限公司 | Formula for low-temperature wear-resisting plastic coating material |
| CN102815956A (en) * | 2012-08-29 | 2012-12-12 | 江苏恒耐炉料集团有限公司 | Wear-resistant coating mixture for waste heat power generation pipelines |
| CN104628403A (en) * | 2015-02-12 | 2015-05-20 | 宜兴市国强炉业有限公司 | Multielement high-strength wear-resistant composite paint and preparation method thereof |
| CN106083080A (en) * | 2016-06-08 | 2016-11-09 | 上海彭浦特种耐火材料厂有限公司 | High strength and low cost is high temperature resistant coating and preparation method |
-
2021
- 2021-11-26 CN CN202111428419.3A patent/CN114105657A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010167A (en) * | 2010-09-14 | 2011-04-13 | 浙江锦诚耐火材料有限公司 | Formula for low-temperature wear-resisting plastic coating material |
| CN102815956A (en) * | 2012-08-29 | 2012-12-12 | 江苏恒耐炉料集团有限公司 | Wear-resistant coating mixture for waste heat power generation pipelines |
| CN104628403A (en) * | 2015-02-12 | 2015-05-20 | 宜兴市国强炉业有限公司 | Multielement high-strength wear-resistant composite paint and preparation method thereof |
| CN106083080A (en) * | 2016-06-08 | 2016-11-09 | 上海彭浦特种耐火材料厂有限公司 | High strength and low cost is high temperature resistant coating and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 许晓海: "《耐火材料技术手册》", 哈尔滨工业大学出版社, pages: 300 * |
| 陈照峰: "《无机非金属材料学 第2版》", 28 February 2016, pages: 45 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043626A (en) * | 2022-06-24 | 2022-09-13 | 华新水泥股份有限公司 | Ordinary silicate-based inorganic wear-resistant coating and preparation method thereof |
| CN118221410A (en) * | 2024-04-19 | 2024-06-21 | 东莞远东干浆制品有限公司 | Waterproof acid-resistant mortar for repairing municipal pipelines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100436376C (en) | Ceramic Al203SiC refractory and preparation method thereof | |
| CN107032810B (en) | Gunning mix with excellent bonding performance for sintering large flue and preparation method | |
| EP3120094B1 (en) | Blast furnace hearth repair material | |
| CN100357692C (en) | Internal lining casting material of industrial reaction furnace and lining-up method | |
| CN101148363B (en) | Large aggregate penetration pouring material and preparation method thereof | |
| CN114105657A (en) | High-strength wear-resistant coating and application thereof | |
| CN106242588A (en) | Torpedo tank liner spray repair material for repairing and preparation method and application | |
| CN113149675A (en) | Low-cement refractory castable for pumping construction | |
| CN108033783A (en) | Blast furnace slag chute castable and preparation method thereof | |
| CN108472722B (en) | Castable refractory composition comprising zeolite-type microstructure and use thereof | |
| CN110510966B (en) | High-strength residue soil baking-free product and preparation method thereof | |
| CN111362674B (en) | Acid-resistant corundum ramming mass and method for manufacturing acid regenerator nozzle by using same | |
| CN105254319B (en) | A kind of castable of feeding chamber preformed bricks and preparation method thereof | |
| CN105294082A (en) | Al-Mg-Si type tank edge casting material and preparation method and application thereof | |
| CN101020610A (en) | Poured material for foundry ladle bottom and its pouring process and mold | |
| CN110668828A (en) | Magnesium binder for cement-free castable and preparation method thereof | |
| CN107010965B (en) | Quick-hardening type blast furnace hearth repairing material and preparation method thereof | |
| PL190654B1 (en) | Self-castable basic concrete mix and moulded products made thereof | |
| CN105819871A (en) | Air blowing and slag removing spray gun for foundry ladle and preparation method thereof | |
| CN115784682A (en) | Fire-resistant anti-explosion ultra-high performance concrete and preparation method thereof | |
| CN113233880A (en) | Ladle castable for integral casting and preparation method thereof | |
| CN112239353A (en) | Lining brick for one-pot hot metal ladle and preparation process thereof | |
| CN111943693A (en) | Torpedo tank lining smearing repairing material, preparation method and use method | |
| CN111732423B (en) | Castable for lower orifice of hot blast stove and construction method thereof | |
| CN117164217B (en) | Self-flow casting formed hole sealing material for molten tin bath bottom brick, and preparation method and application 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220301 |
|
| RJ01 | Rejection of invention patent application after publication |