CN106917918B - With silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof - Google Patents
With silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof Download PDFInfo
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- CN106917918B CN106917918B CN201511005296.7A CN201511005296A CN106917918B CN 106917918 B CN106917918 B CN 106917918B CN 201511005296 A CN201511005296 A CN 201511005296A CN 106917918 B CN106917918 B CN 106917918B
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- pipe fitting
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- 239000000919 ceramic Substances 0.000 title claims abstract description 179
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 230000003628 erosive effect Effects 0.000 title abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 177
- 238000005260 corrosion Methods 0.000 claims abstract description 89
- 239000002002 slurry Substances 0.000 claims abstract description 84
- 230000007797 corrosion Effects 0.000 claims abstract description 72
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 42
- 239000002131 composite material Substances 0.000 claims abstract description 41
- 239000006260 foam Substances 0.000 claims abstract description 20
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 238000010345 tape casting Methods 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 238000004513 sizing Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 26
- 239000002904 solvent Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000007767 bonding agent Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 229920001568 phenolic resin Polymers 0.000 claims description 10
- 239000005011 phenolic resin Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 8
- 238000001723 curing Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910001867 inorganic solvent Inorganic materials 0.000 claims description 2
- 239000003049 inorganic solvent Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 229920005596 polymer binder Polymers 0.000 claims description 2
- 239000002491 polymer binding agent Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000013007 heat curing Methods 0.000 abstract description 2
- 238000009428 plumbing Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000000197 pyrolysis Methods 0.000 abstract description 2
- 239000002243 precursor Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 27
- 229910010293 ceramic material Inorganic materials 0.000 description 26
- 238000010276 construction Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 2
- 229940092714 benzenesulfonic acid Drugs 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000002320 enamel (paints) Substances 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 2
- 239000001667 (E)-4-furan-2-ylbut-3-en-2-one Substances 0.000 description 1
- GBKGJMYPQZODMI-SNAWJCMRSA-N (e)-4-(furan-2-yl)but-3-en-2-one Chemical compound CC(=O)\C=C\C1=CC=CO1 GBKGJMYPQZODMI-SNAWJCMRSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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
- 238000003763 carbonization Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/0615—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/14—Coatings characterised by the materials used by ceramic or vitreous materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
It is specially a kind of with silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof the present invention relates to metallic conduit or tube surface antiwear and anticorrosion protective technology.The pipeline or pipe fitting are made of wear-and corrosion-resistant lining and metal layer from the inside to the outside, and wear-and corrosion-resistant lining is made of surface layer and composite layer, and surface layer is dense ceramic layers, and composite layer is foamed ceramics layer, and composite layer is grown directly upon the back side of dense ceramic layers.Its preparation process is as follows: preparation compound powder → preparation slurry → tape casting, prepare heat cure sizing → machining in foam precursor → bonding → mold, bonding forming → pyrolysis, sintering → compound obtain finished product.Ceramic lining wear-and corrosion-resistant pipeline or pipe fitting prepared by the present invention, its friction durability can reach 5~10 times of line with rubber wearing layer, there is excellent tolerance for acid and alkali corrosion, high temperature impact, the replacement cycle of pipeline or plumbing arrangements can effectively be extended, to reduce operation cost of enterprises, the discharge of particulate pollutant is reduced.
Description
Technical field
The present invention relates to metallic conduit or tube surface antiwear and anticorrosion protective technologies, specially a kind of to have silicon carbide ceramics
Wear-resisting, erosion lining pipeline or pipe fitting and preparation method thereof, utilize the dense ceramic layers-bubble with double ceramic layers, two-arch tunnel
It is modified that foam ceramic layer/polymer composite carries out wear-and corrosion-resistant to metallic conduit or tube surface.
Background technique
Metallic conduit or pipe fitting are the structural members that modern industry is most widely used, in use, pipeline or pipe fitting
The erosive wear and corrosiveness of media particle are usually born, such as: in being used for for thermal power plant, mine and petrochemical enterprise
Transmit mud, particulate dust, corrosive gas, the metallic conduit of liquid or the auxiliary devices such as pipe fitting and valve, the pump housing.Abrasion
It is two key factors for reducing material lifetime, increasing production cost with corrosion, China is every year as caused by abrasion and corrosion
Direct losses account for about 2%~4% or so of national gross national product.
For example, in order to reduce the discharge of sulfur dioxide, being needed to generation during coal burning in thermal power plant
Flue gas carries out desulfurization process.During desulfurization process, there is serious mills for the pipeline or pipe fitting that are used for transmission lime stone slurry
Phenomenon is damaged, straight tube service life is about 1 year or so, and elbow service life only two months.With the firepower hair of a 800MW
For motor group, 1 year desulfuration pipeline needed replacing or pipe fitting are 500m or so, dozens of elbow and threeway, are taken about
1000000 yuan, if it is considered that personal expenditures and replacement process are influenced caused by production, required cost can be higher.Therefore, it improves
The wear-and corrosion-resistant performance of metal material is the main path for reducing production cost and avoiding security risk.
Currently, domestic existing abrasion-resistant metal pipe mainly has: Ceramic Lined Pipes Made, rubber liner pipe, cast steel with high chromium pipe (iron)
Pipe, cast stone steel pipe etc..In actual application, working condition is more severe, transmission medium often exist simultaneously solid granulates,
Simultaneously certain acidity or alkalinity is presented in liquid.Therefore, it washes away, wear, corroding and can act on workpiece surface simultaneously, making existing resistance to
Grind pipeline or the generally existing quick abrasion of pipe fitting, service life short problem, shorten the replacement cycle, correspondingly improved enterprise operation at
This.
In this context, new wear-and corrosion-resistant technology is researched and developed, China's electric power is can promote, mine, petroleum, chemical industry, metallurgy, builds
The technological progress for the basic industries such as building, generates great economic and social benefit.
Summary of the invention
The purpose of the present invention is to provide a kind of with silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and its preparation
Method reduces firepower hair for solving the problems such as conveying pipe or tube system reliability are low in the prior art, service life is short
The pollutant emission of electricity Deng enterprise.
The technical scheme is that
A kind of pipeline or pipe fitting with silicon carbide ceramic abrasion-proof, erosion lining, the pipeline or pipe fitting are from the inside to the outside by main body
Material is that the wear-and corrosion-resistant lining of silicon carbide and metal layer are constituted, and silicon carbide wear-and corrosion-resistant lining is made of surface layer and composite layer,
Surface layer and composite layer are closely linked, and constitute an entirety；Surface layer is dense ceramic layers, and composite layer is foamed ceramics layer,
Composite layer is grown directly upon the back side of dense ceramic layers, and composite layer is contacted with metallic conduit or pipe fitting, forms wear-and corrosion-resistant pipeline
Or pipe fitting.
The pipeline or pipe fitting with silicon carbide ceramic abrasion-proof, erosion lining, wear-and corrosion-resistant lining provide resist fluids mill
Function is lost, metal layer provides a supporting role, and metal layer prevents accidental shock from bringing damage to pipeline or pipe fitting；Metal layer includes connecting
Acting flange, wear-and corrosion-resistant pipeline or pipe fitting are connected by metal layer.
The pipeline or pipe fitting with silicon carbide ceramic abrasion-proof, erosion lining, 0.5mm≤compact silicon carbide ceramic thickness
Degree≤20mm, 0mm < foamed ceramics thickness degree≤20mm, 0.5mm≤metal layer thickness≤10mm；Dense ceramic layers directly with
Fluid, corrosion or the abrasive media contact that pipeline or pipe fitting transport, the porosity of dense ceramic layers is below 8%；Foamed ceramics
The porosity of layer is between 30%~90%, 0.1mm≤foamed ceramics layer pore size≤7mm.
It is described with silicon carbide ceramic abrasion-proof, lose the pipeline or pipe fitting of lining, wear-and corrosion-resistant pipeline or pipe fitting include etc.
Diameter, the concentric reducer of variable diameter, threeway or elbow transport pipe fitting.
It is described with silicon carbide ceramic abrasion-proof, lose the pipeline or pipe fitting of lining, wear-and corrosion-resistant lining be it is whole or
Split assembled；In Split assembled, excess smoothness between each unit part, without obvious gap or step；With whole or seperated group
Conjunction mode is in use, there is the gap no more than 5mm between wear-and corrosion-resistant lining and metal component.
The preparation method with silicon carbide ceramic abrasion-proof, the pipeline or pipe fitting that lose lining, firstly, by densification-bubble
Foam integrated ceramic lining is prepared into required shape and size；Then, to the surface protected of needs carry out frosting treatment or
Trench processing improves the binding force of high polymer binder and metal；After again, ceramic lining is passed through into mechanical engagement, connection, weldering
The mode for connecing, being bonded or inlaying is fixed to metalwork surface；Then, normal pressure perfusion, centrifugation perfusion, vacuum suction or injection are utilized
Liquid polymeric binder is injected into foamed ceramics mesh by forming method, after cured, vulcanization or solidification, obtains fine and close pottery
Enamel coating-foamed ceramics layer/macromolecule bicontinuous phase compound material wear-and corrosion-resistant protective layer, and protective layer and metal quilt are realized simultaneously
The firm connection of protector.
The preparation method with silicon carbide ceramic abrasion-proof, the pipeline or pipe fitting that lose lining, preparation step are as follows:
(1) organic resin is uniformly mixed with ceramic particle, curing agent, solvent；
(2) mixture obtained by (1) is configured to the slurry with viscosity and mobility；
(3) mold of shape needed for designing, processing is laid with the plastic film of 0.1mm thickness in mold bottom, described in (2)
Slurry be uniformly laid on a plastic film using the tape casting, and be full of mold, vibration exhaust is obtained with design thickness and shape
The slurry film layer of shape；
(4) solvent is added in the mixture obtained by (1), obtains liquid slurry, foamed plastics is repeated in liquid slurry
It impregnates, drying course, obtains the foamed ceramics layer green body of required volume fraction；
(5) foamed ceramics green body obtained by (4) is cut to the shape being adapted to mold, is then laid in obtained by (3)
In slurry film layer, film surface has viscosity and mobility, and film layer and foamed ceramics are bonded together；
(6) complex of the film layer after Nian Jie with foamed ceramics green body is put into shaper, be heating and curing sizing；
(7) sample after sizing is machined to predetermined size, then bonding is the shape of bulk sample；If adopted
With split type structure, bonding is not had to；
(8) it is pyrolyzed, sintering step, obtains finished product wear-and corrosion-resistant lining；
(9) by metallic conduit or tube surface frosting treatment or the trench processing of progress, by wear-and corrosion-resistant lining high score
Sub- binder is bonded in metallic conduit or tube surface, obtains complete wear-and corrosion-resistant pipeline or pipe fitting product.
The preparation method with silicon carbide ceramic abrasion-proof, the pipeline or pipe fitting that lose lining, the specific steps are as follows:
(1) press portions of resin ceramic particle: curing agent=100: (10~450): the mass ratio of (1~30) mixes above-mentioned original
Material, ball milling obtain feed powder after 0.5~2.5 hour, each material is uniformly mixed in feed powder；
(2) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (150~550) prepares liquid material
Slurry, then squeezed after foamed plastics is sufficiently impregnated in slurry and remove extra slurry, it is air-dried between 50 DEG C~150 DEG C later；It air-dries
Sample is again dipped into slurry afterwards, blows away extra slurry between hole, then 50 DEG C~150 DEG C air-dry；So repeat the above steps 3~10
Time, foamed ceramics layer presoma required for obtaining；
(3) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (20~50) is prepared, after mixing
To slurry slurry, the sealed polyethylene plastic of 0.1mm thickness is laid in casting mold bottom in advance, slurry slurry is filled in mold
Middle tape casting, vibration exhaust, vibration frequency are 15~10Hz, evacuation time 10min, slurry film layer required for obtaining；
(4) the foamed ceramics layer presoma that step (2) obtains is cut to shape same as slurry film layer obtained by (3), paving
It is located in slurry film layer, the two carries out self bonding by the cementability of slurry film layer, obtains answering for foamed ceramics green body and film layer
It is fit；
(5) complex obtained by (4) and polyethylene film are removed from the molds together, are put into pipeline or pipe fitting mold and add
Heat dehydration, solidifying and setting；In this step, foamed ceramics layer on the outside, dense ceramic layers in inboard, operation temperature is 80 DEG C~
Solidifying and setting sample is obtained between 400 DEG C, after demoulding；
(6) the machined means of sample after solidifying and setting obtain suitable shape, are one by corresponding exemplar bonding
It is whole；
(7) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains double ceramic layer wear-and corrosion-resistant lining finished products；
(8) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, it is anti-corrosion obtains finished product wear-and corrosion-resistant
Pipeline or pipe fitting.
The preparation method with silicon carbide ceramic abrasion-proof, the pipeline or pipe fitting that lose lining, ceramic particle is carbonization
The mixture of one or more of silicon, aluminium oxide, silica, silicon nitride, boron nitride or glass, ceramic particle are averaged
Diameter is between 20nm~2mm；Resin is the phenolic resin or epoxy resin of phenolic resin, modification, and resin form is solid powder
End or liquid；Solvent is organic solvent: alcohol, acetone are inorganic solvent: water to toluene or solvent.
The invention has the following advantages and beneficial effects:
1, the wear-resisting property of workpiece is improved
Ceramic material has the performances such as high intensity, high-modulus, high rigidity, anti-oxidant, wear-and corrosion-resistant, prepared by ceramic material
At the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers, then the resistance to of ceramic material can be effectively played
Mill advantage, and the construction advantage of three-dimensional net structure can be played, making the ceramic lining prepared not only has good wearability
Can, and there is good bonding composite performance between metal component.
2, the corrosion resistance of workpiece is improved, eliminates because corrosion leads to security risk caused by workpiece failure, extends work
The service life of part reduces production cost.
In the present invention, the pipeline or pipe fitting inner wall being made of compact silicon carbide ceramic material will have abrasive fluid
Completely cut off completely with metal component, can avoid fluid to the corrosion of metalwork for a long time, extend the service life of workpiece, and then reduce
The maintenance of enterprise and renewal cost.
3, integrated molding, integral adhesive complex technique are used, peeling phenomenon is not present
Ceramic lining in the present invention can be prepared into the size and shape to match with workpiece, using direct bonding, edge
Embedding, mode that is clamping is fixed on the surface of workpiece, avoids conventional ceramic splicing lining due to regional area resin bonding intensity
Fritter that is low and generating peels off, and then large area is caused to peel off the phenomenon that caused wear-and corrosion-resistant lining fails.
In short, the invention proposes a kind of with silicon carbide ceramic abrasion-proof, the wear-and corrosion-resistant pipeline of erosion lining or pipe fitting
Preparation method.In the method, ceramic lining includes compact silicon carbide ceramic layer and foamed ceramics layer, and foamed ceramics layer is grown in
On compact silicon carbide ceramic layer, the two is an entirety, and there is no combine gap.Wherein, compact silicon carbide ceramic layer with it is defeated
The fluid of fortune directly contacts, and provides wear and corrosion behavior.Foamed ceramics layer and organic binder are compound, and pass through bonding agent
It bonds together with metal component, primarily serves the effect of fixed ceramic layer, and in the feelings of compact silicon carbide ceramic layer failure
Under condition, part wear and corrosion behavior is provided.By this structure, fluid and metal component are separated, eliminated safe hidden trouble,
Extend workpiece service life.It works in abrasion, corrosion and the two and the present invention can be used in the metal component in the environment deposited
The guard method of offer improves working efficiency, reduces the use of production cost to obtain the service life for improving equipment and workpiece
Effect.
Detailed description of the invention
Fig. 1 is that Silicon carbide ceramic is wear-resisting, loses the preparation technology flow chart of lining pipe fitting.
Fig. 2 is compound rear wear-and corrosion-resistant pipeline or pipe fitting the schematic diagram of the section structure.In figure, 1 compact silicon carbide ceramic layer；2
Foamed ceramics layer；3 metal layers.
Specific embodiment
As shown in Figure 1, the preparation process flow of the double ceramic lining wear-and corrosion-resistant pipelines of the present invention includes: preparation compound powder
→ prepare slurry → tape casting, prepare heat cure sizing → machine in foam (foamed ceramics layer) presoma → fitting → mold and add
Work, bonding forming → pyrolysis, sintering → compound finished product, it is specific as follows:
(1) press portions of resin ceramic particle: curing agent=100: (20~450): the mass ratio of (2~30) mixes above-mentioned original
Material, ball milling obtain feed powder after 0.5~1.5 hour, each material is uniformly mixed in feed powder, without apparent agglomeration；Wherein, it sets
Rouge: ceramic particle: the preferred mass ratio of curing agent is 100: (30~400): (3~20)；
(2) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (100~450) prepares liquid material
Slurry, then squeezed after the foamed plastics of suitable size is sufficiently impregnated in slurry and remove extra slurry, later between 50 DEG C~150 DEG C
It air-dries.Sample is again dipped into slurry after air-drying, and blows away extra slurry between hole, then 50 DEG C~150 DEG C air-dry.So repeat above-mentioned step
Rapid 3~10 times, foamed ceramics layer presoma required for obtaining；
(3) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (50~100) is prepared, after mixing
Obtain the dense slurry of certain viscosity.It is laid with 0.1mm thick polyethylene film in mold bottom, to avoid sticking to mould, later using stream
Prolong method dense slurry is laid on polyethylene film, control speed and the direction of curtain coating, makes slurry full of mold, obtain slurry film
Layer, thicknesses of layers are determined by the thickness of mold；
(4) the foamed ceramics layer presoma that step (2) obtains is cut to the print equal sized with film layer obtained by (3),
Be layered in film layer obtained by (3), film layer and froth bed presoma by film layer itself adhesive bond together with.Answering the two later
Zoarium is put into heating draining, solidifying and setting in pipeline or pipe fitting mold.In this step, foamed ceramics layer on the outside, make pottery by densification
For enamel coating in inboard, operation temperature is between 80 DEG C~400 DEG C；
(5) sample after solidifying and setting obtains suitable shape through the machinings means such as cutting, repairing type, by corresponding exemplar
Bonding is an entirety；
(6) bulk sample after being bonded obtains carbonaceous precast body after being pyrolyzed under 800 DEG C of inert gas shieldings.Later again
With quality than metallic silicon: carbonaceous precast body=1: metallic silicon is mixed with carbonaceous precast body and is put by 2 ratio, under vacuum atmosphere
Reaction siliconising sintering is carried out, 1600 DEG C of sintering temperature, obtains silicon carbide ceramic abrasion-proof, erosion lining finished product；
(7) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, complex method is shown in that Chinese invention is special
Benefit " a kind of method that metal component surface wear-and corrosion-resistant is modified, application number 201110287042.4 ", obtains finished product wear-and corrosion-resistant
Anti-corrosion pipeline or pipe fitting.
As shown in Fig. 2, wear-and corrosion-resistant pipeline or pipe fitting after the present invention is compound, are from the inside to the outside wear-and corrosion-resistant lining and metal
Layer 3 is constituted, and wear-and corrosion-resistant lining provides resist fluids and denudes function, and metal layer 3 provides a supporting role, and metal layer prevents accidental shock
Damage is brought to pipeline or pipe fitting；Metal layer 3 includes that connecting flange, wear-and corrosion-resistant pipeline or pipe fitting are connected by metal layer 3.It is resistance to
It grinds anti-corrosion lining and is made of surface layer and composite layer, surface layer and composite layer are closely linked, and constitute an entirety.Surface layer is
Compact silicon carbide ceramic layer 1 (dense ceramic layers), for thickness between 0.5mm~20mm, the surface layer is directly defeated with pipeline or pipe fitting
The fluid of fortune, the contact of burn into abrasive media provide wear-resisting, corrosion resisting property more better than metallic conduit or pipe fitting.Composite layer is bubble
Foam ceramic layer 2 is grown directly upon the back side of compact silicon carbide ceramic layer 1, contacts with metallic conduit or pipe fitting, fills in composite layer
Bonding agent is bonded together wear-and corrosion-resistant lining with metallic conduit or pipe fitting by the bonding agent.Wherein, bonding agent can be
The organic adhesives such as epoxylite or phenolic resinoid, bonding agent may be clay, the oxidation nothings such as aluminium glue or silica gel
Machine bonding agent.The foamed ceramics structure of composite layer helps to provide more stable, stronger adhesive effect, and thickness is being greater than 0
To between 20mm.Outmost metal layer mainly provides a supporting role, and material is cast iron, stainless steel etc., the thickness root of metal layer
According to different use occasions between 0.5mm~10mm.
In the following, being further elaborated on by embodiment to the present invention.
Embodiment 1
In the present embodiment, there is double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, include the following steps:
(1) it counts in mass ratio, phenolic resin: silicon-carbide particles (10 μm of average diameter): hexamethylenetetramine=100: 140
: 5 ratio mixes above-mentioned raw materials, and ball milling obtains feed powder after 1 hour, and each material is uniformly mixed in feed powder, does not reunite significantly
Phenomenon；
(2) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 200 ratio prepares liquid solvent or diluent slurry, then will be thick
The foamed plastics that degree is 5mm squeezes after sufficiently impregnating in slurry and removes extra slurry, air-dries later at 120 DEG C.Air-dry rear sample again
Secondary immersion slurry blows away extra slurry between hole, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, required for obtaining
Foamed ceramics layer presoma；
(3) feed powder obtained by (1) (feed powder: alcohol=100: 50) is prepared with mass ratio, obtains the dense slurry of slurry.In mold
Bottom is laid with the sealed polyethylene plastic of 0.1mm thickness, makes dense slurry tape casting on film using the tape casting, obtains slurry film
Layer, thicknesses of layers are controlled by the design thickness of mold, and obtained thicknesses of layers is 6mm in the present embodiment；
(4) by the foamed ceramics layer presoma that (2) obtain be cut to the big print such as film layer obtained by (3), print is put down
It is layered in film layer, both the viscosity by film layer itself is adhesively-bonded together to form complex.This complex is put into pipeline or pipe fitting
Heating draining, solidifying and setting in mold.In this step, on the outside, dense ceramic layers drain in inboard, are solid foamed ceramics layer
Changing program is 100 DEG C, 30min, 200 DEG C, 120min；
(5) sample after solidifying and setting obtains suitable shape through the machinings means such as cutting, repairing type, by corresponding exemplar
Bonding is an entirety, and shape is 90 ° of elbows, outer diameter 100mm, internal diameter 90mm；
(6) bulk sample after being bonded obtains carbonaceous precast body after being pyrolyzed under 800 DEG C of inert gas shieldings.Later again
With mass ratio, (metallic silicon: carbonaceous precast body=1: 2) mixing with carbonaceous precast body by metallic silicon and put, and carries out under vacuum atmosphere
Siliconising sintering is reacted, 1600 DEG C of sintering temperature, obtains silicon carbide ceramic abrasion-proof, erosion lining finished product；
(7) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, complex method is shown in a kind of patent " gold
The modified method of metal elements surface abrasion resistance anti-corrosion " (application number 201110287042.4), obtain the anti-corrosion pipeline of finished product wear-and corrosion-resistant
Or pipe fitting.To, ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers,
It then can effectively play the wear-resisting advantage of ceramic material and play the construction advantage of three-dimensional net structure, make the pottery prepared
Ceramic liner layer not only has good wear-resisting property, and has good bonding composite performance between metal component.
Embodiment 2
In the present embodiment, there is double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, include the following steps:
(1) it counts in mass ratio, epoxy resin: silicon-carbide particles: citric acid=100: 50: 5 ratio mixing above-mentioned raw materials,
Ball milling obtained slurry after 2 hours；The silicon-carbide particles granularity is 2 microns；
(2) by feed powder obtained by (1), with mass ratio, (feed powder: alcohol=100: 250) preparing liquid solvent or diluent slurry, then will be with a thickness of
The foamed plastics of 5mm squeezes after sufficiently impregnating in slurry and removes extra slurry, air-dries later at 120 DEG C.Sample soaks again after air-drying
Enter slurry, blow away extra slurry between hole, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, obtains required foam
Ceramic layer presoma；
(3) feed powder obtained by (1) (feed powder: alcohol=100: 40) is prepared with mass ratio, obtains the dense slurry of slurry.In mold
Bottom is laid with the sealed polyethylene plastic of 0.1mm thickness, makes dense slurry tape casting on film using the tape casting, obtains slurry film
Layer, thicknesses of layers are controlled by the design thickness of mold, and obtained thicknesses of layers is 6mm in the present embodiment；
(4) by the foamed ceramics layer presoma that (2) obtain be cut to the big print such as film layer obtained by (3), print is put down
It is layered in film layer, both the viscosity by film layer itself is adhesively-bonded together to form complex.This complex is put into pipeline or pipe fitting
Heating draining, solidifying and setting in mold.In this step, on the outside, dense ceramic layers drain in inboard, are solid foamed ceramics layer
Changing program is 100 DEG C, 30min, 200 DEG C, 120min；
(5) sample after solidifying and setting obtains suitable shape through the machinings means such as cutting, repairing type, by corresponding exemplar
Bonding is an entirety, and shape is 90 ° of elbows, outer diameter 100mm, internal diameter 90mm；
(6) bulk sample after being bonded obtains carbonaceous precast body after being pyrolyzed under 800 DEG C of inert gas shieldings.Later again
With mass ratio, (metallic silicon: carbonaceous precast body=1: 2) mixing with carbonaceous precast body by metallic silicon and put, and carries out under vacuum atmosphere
Siliconising sintering is reacted, 1600 DEG C of sintering temperature, obtains silicon carbide ceramic abrasion-proof, erosion lining finished product；
(7) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, complex method is shown in a kind of patent " gold
The modified method of metal elements surface abrasion resistance anti-corrosion " (application number 201110287042.4), obtain the anti-corrosion elbow of finished product wear-and corrosion-resistant.
To which ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers, then can be had
Effect plays the wear-resisting advantage of ceramic material, and can play the construction advantage of three-dimensional net structure, makes the ceramic lining prepared not
But there is good wear-resisting property, and there is good bonding composite performance between metal component.
Embodiment 3
In the present embodiment, there is double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, include the following steps:
(1) count in mass ratio, phenolic resin: silicon-carbide particles: p-methyl benzenesulfonic acid=100: 50: 5 ratio mixing is above-mentioned
Raw material, ball milling obtained slurry after 2 hours；The silicon-carbide particles granularity is 2 microns.
(2) by feed powder obtained by (1), with mass ratio, (feed powder: alcohol=100: 300) preparing liquid solvent or diluent slurry, then will be with a thickness of
The foamed plastics of 5mm squeezes after sufficiently impregnating in slurry and removes extra slurry, air-dries later at 120 DEG C.Sample soaks again after air-drying
Enter slurry, blow away extra slurry between hole, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, obtains required foam
Ceramic layer presoma；
(3) feed powder obtained by (1) (feed powder: alcohol=100: 35) is prepared with mass ratio, obtains the dense slurry of slurry.In mold
Bottom is laid with the sealed polyethylene plastic of 0.1mm thickness, makes dense slurry tape casting on film using the tape casting, obtains slurry film
Layer, thicknesses of layers are controlled by the design thickness of mold, and obtained thicknesses of layers is 6mm in the present embodiment；
(4) by the foamed ceramics layer presoma that (2) obtain be cut to the big print such as film layer obtained by (3), print is put down
It is layered in film layer, both the viscosity by film layer itself is adhesively-bonded together to form complex.This complex is put into pipeline or pipe fitting
Heating draining, solidifying and setting in mold.In this step, on the outside, dense ceramic layers drain in inboard, are solid foamed ceramics layer
Changing program is 100 DEG C, 30min, 200 DEG C, 120min；
(5) sample after solidifying and setting obtains suitable shape through the machinings means such as cutting, repairing type, by corresponding exemplar
Bonding is an entirety, and shape is 90 ° of elbows, outer diameter 100mm, internal diameter 90mm；
(6) bulk sample after being bonded obtains carbonaceous precast body after being pyrolyzed under 800 DEG C of inert gas shieldings.Later again
With mass ratio, (metallic silicon: carbonaceous precast body=1: 2) mixing with carbonaceous precast body by metallic silicon and put, and carries out under vacuum atmosphere
Siliconising sintering is reacted, 1600 DEG C of sintering temperature, obtains silicon carbide ceramic abrasion-proof, erosion lining finished product；
(7) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, complex method is shown in a kind of patent " gold
The modified method of metal elements surface abrasion resistance anti-corrosion " (application number 201110287042.4), obtain the anti-corrosion elbow of finished product wear-and corrosion-resistant.
To which ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers, then can be had
Effect plays the wear-resisting advantage of ceramic material, and can play the construction advantage of three-dimensional net structure, makes the ceramic lining prepared not
But there is good wear-resisting property, and there is good bonding composite performance between metal component.
Embodiment 4
Difference from Example 3 is that the present embodiment adopts water as solvent, remaining step is the same as embodiment 3.To, will
Ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers, then can effectively play
The wear-resisting advantage of ceramic material, and the construction advantage of three-dimensional net structure can be played, there is the ceramic lining prepared not only
Good wear-resisting property, and there is good bonding composite performance between metal component.
Embodiment 5
Difference from Example 3 is that the present embodiment feed powder quality proportioning is ammonia phenolic resin: silicon-carbide particles: six
Methine tetramine=100: 50: 5, ball milling obtains slurry after 2 hours, silicon-carbide particles granularity is 2 microns.Remaining step and implementation
Example 3 is identical.To, ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers,
It then can effectively play the wear-resisting advantage of ceramic material and play the construction advantage of three-dimensional net structure, make the pottery prepared
Ceramic liner layer not only has good wear-resisting property, and has good bonding composite performance between metal component.
Embodiment 6
Difference from Example 3 is that the present embodiment feed powder quality proportioning is ammonia phenolic resin: silicon oxide particle: six
Methine tetramine=100: 50: 5, ball milling obtains slurry after 2 hours, silicon oxide particle granularity is 2 microns.Remaining step and implementation
Example 3 is identical.To, ceramic material is prepared into the bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers,
It then can effectively play the wear-resisting advantage of ceramic material and play the construction advantage of three-dimensional net structure, make the pottery prepared
Ceramic liner layer not only has good wear-resisting property, and has good bonding composite performance between metal component.
Embodiment 7
Difference from Example 6 is that ceramic particle used in the present embodiment is silicon nitride particulate, silicon nitride particulate granularity
It is 5 microns, remaining step is same as Example 6.To be prepared into ceramic material with the double potteries of foam+dense ceramic layers
The bulk ceramics of enamel coating composite construction then can effectively play the wear-resisting advantage of ceramic material and play three-dimensional net structure
Construction advantage, making the ceramic lining prepared not only has good wear-resisting property, and has between metal component good
Bonding composite performance.
Embodiment 8
Difference from Example 1 is that the present embodiment feed powder quality proportioning is furfural acetone resin: silicon-carbide particles are (average
10 μm of diameter): p-methyl benzenesulfonic acid=100: 240: 5, remaining step is the same as embodiment 1.To which being prepared into ceramic material has bubble
The bulk ceramics of the double ceramic layer composite constructions of foam+dense ceramic layers, then can effectively play ceramic material wear-resisting advantage and
The construction advantage that three-dimensional net structure can be played, making the ceramic lining prepared not only has good wear-resisting property, Er Qieyu
There is good bonding composite performance between metal component.
Embodiment 9
Difference from Example 2 is that the present embodiment feed powder quality proportioning is epoxy resin: alumina particulate is (average
20 μm of diameter): citric acid=100: 200: 5, remaining step is the same as embodiment 2.To, ceramic material is prepared into foam+
The bulk ceramics of double ceramic layer composite constructions of dense ceramic layers, then can effectively play ceramic material wear-resisting advantage and
Play three-dimensional net structure construction advantage, making the ceramic lining prepared not only has good wear-resisting property, and with gold
There is good bonding composite performance between metal elements.
Embodiment 10
Difference from Example 3 is that the present embodiment feed powder quality proportioning is phenolic resin: silicon-carbide particles: to first
Benzene sulfonic acid=100: 200: 5, silicon-carbide particles granularity is 1~10 micron, remaining step is the same as embodiment 3.To by ceramic material
The bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers are prepared into, then can effectively play ceramic material
Wear-resisting advantage, and the construction advantage of three-dimensional net structure can be played, make the ceramic lining prepared not only and have and is good resistance to
Performance is ground, and there is good bonding composite performance between metal component.
Embodiment 11
Difference from Example 4 is that the present embodiment feed powder quality proportioning is phenolic resin: silicon-carbide particles: to first
Benzene sulfonic acid=100: 200: 5, silicon-carbide particles granularity is 1~10 micron, remaining step is the same as embodiment 4.To by ceramic material
The bulk ceramics with the double ceramic layer composite constructions of foam+dense ceramic layers are prepared into, then can effectively play ceramic material
Wear-resisting advantage, and the construction advantage of three-dimensional net structure can be played, make the ceramic lining prepared not only and have and is good resistance to
Performance is ground, and there is good bonding composite performance between metal component.
Embodiment the result shows that, the present invention prepared by ceramic lining wear-and corrosion-resistant pipeline or pipe fitting, friction durability can
Reach 5~10 times of line with rubber wearing layer, and have excellent tolerance for acid and alkali corrosion, high temperature impact, can effectively extend
The replacement cycle of pipeline or plumbing arrangements reduces the discharge of particulate pollutant to reduce operation cost of enterprises.
Claims (7)
1. a kind of preparation method with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting, it is characterised in that: firstly,
Densification-foam integrated ceramic lining is prepared into required shape and size；Then, hair is carried out to the surface that needs protect
Change processing or trench processing, improves the binding force of high polymer binder and metal；After again, ceramic lining is passed through into the side of connection
Formula is fixed to metalwork surface；Then, it is perfused using normal pressure, is centrifuged perfusion, vacuum suction or injection moulding method for liquid height
Molecular binder is injected into foamed ceramics mesh, after cured or vulcanization, obtains compact silicon carbide ceramic layer-foamed ceramics
Layer/macromolecule bicontinuous phase compound material wear-and corrosion-resistant protective layer, and the firm connection of protective layer and metalwork is realized simultaneously, it should
Pipeline or pipe fitting are from the inside to the outside that wear-and corrosion-resistant lining and metal layer are constituted by material of main part, and wear-and corrosion-resistant lining is by surface layer and again
Layer composition is closed, surface layer and composite layer are closely linked, and constitute an entirety；Surface layer is compact silicon carbide ceramic layer, compound
Layer is foamed ceramics layer, and composite layer is grown directly upon the back side of compact silicon carbide ceramic layer, composite layer and metallic conduit or pipe fitting
Contact forms wear-and corrosion-resistant pipeline or pipe fitting, preparation step is as follows:
(1) organic resin is uniformly mixed with ceramic particle, curing agent, solvent；
(2) mixture obtained by step (1) is configured to the slurry with viscosity and mobility；
(3) mold of shape needed for designing, processing is laid with the plastic film of 0.1mm thickness in mold bottom, described in step (2)
Slurry be uniformly laid on a plastic film using the tape casting, and be full of mold, vibration exhaust is obtained with design thickness and shape
The slurry film layer of shape；
(4) solvent is added in the mixture obtained by step (1), obtains liquid slurry, foamed plastics is repeated in liquid slurry
It impregnates, drying course, obtains the foamed ceramics layer of required volume fraction；
(5) foamed ceramics layer obtained by step (4) is cut to the shape being adapted to mold, is then laid in step (3) institute
It obtains in slurry film layer, slurry film surface has viscosity and mobility, and slurry film layer and foamed ceramics layer are bonded together；
(6) complex of the slurry film layer after Nian Jie with foamed ceramics layer is put into shaper, be heating and curing sizing；
(7) sample after sizing is machined to predetermined size, then bonding is the shape of bulk sample；If using dividing
Body formula structure does not have to bonding；
(8) it is pyrolyzed, sintering step, obtains finished product wear-and corrosion-resistant lining；
(9) by metallic conduit or tube surface frosting treatment or the trench processing of progress, wear-and corrosion-resistant lining is glued with macromolecule
Knot agent is bonded in metallic conduit or tube surface, obtains complete wear-and corrosion-resistant pipeline or pipe fitting product.
2. the preparation method described in accordance with the claim 1 with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting,
It is characterized in that, the specific steps are as follows:
(1) press organic resin: ceramic particle: curing agent=100: (10~450): the mass ratio of (1~30) mixes above-mentioned original
Material, ball milling obtain feed powder after 0.5~2.5 hour, each material is uniformly mixed in feed powder；
(2) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (150~550) prepares liquid slurry, then
It is squeezed after foamed plastics is sufficiently impregnated in slurry and removes extra slurry, air-dried between 50 DEG C~150 DEG C later；Sample after air-drying
It is again dipped into slurry, blows away extra slurry between hole, then 50 DEG C~150 DEG C air-dry；It so repeats the above steps 3~10 times, obtains
Required foamed ceramics layer；
(3) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (20~50) is prepared, and is starched after mixing
State slurry is laid with the sealed polyethylene plastic of 0.1mm thickness in casting mold bottom in advance, and the filling of slurry slurry is flowed in a mold
Prolong molding, vibration exhaust, vibration frequency is 15~10Hz, evacuation time 10min, slurry film layer required for obtaining；
(4) the foamed ceramics layer that step (2) obtains is cut to shape same as slurry film layer obtained by step (3), is laid on slurry
In state film layer, the two carries out self bonding by the cementability of slurry film layer, obtains the complex of foamed ceramics layer Yu slurry film layer；
(5) complex obtained by (4) and polyethylene film are removed from the molds together, it is de- is put into heating in pipeline or pipe fitting mold
Water, solidifying and setting；In this step, on the outside, for compact silicon carbide ceramic layer in inboard, operation temperature is 80 DEG C to foamed ceramics layer
Solidifying and setting sample is obtained between~400 DEG C, after demoulding；
(6) the machined means of sample after solidifying and setting obtain suitable shape, are an entirety by corresponding exemplar bonding；
(7) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains double ceramic layer wear-and corrosion-resistant lining finished products；
(8) wear-and corrosion-resistant lining finished product and metalwork are combined with each other with bonding agent, obtain the anti-corrosion pipeline of finished product wear-and corrosion-resistant
Or pipe fitting.
3. the preparation method with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting according to claim 2,
It is characterized in that, ceramic particle is one or more of silicon carbide, aluminium oxide, silica, silicon nitride, boron nitride or glass
Mixture, the average diameter of ceramic particle is between 20nm~2mm；Organic resin is the phenolic resin of phenolic resin, modification
Or epoxy resin, resin form are solid powder or liquid；Solvent is organic solvent: alcohol, acetone or p-methyl benzenesulfonic acid, or
Solvent is inorganic solvent: water.
4. the preparation method described in accordance with the claim 1 with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting,
Be characterized in that: wear-and corrosion-resistant lining provides resist fluids abrasion function, and metal layer provides a supporting role, and metal layer prevents accidental shock
Damage is brought to pipeline or pipe fitting；Metal layer includes that connecting flange, wear-and corrosion-resistant pipeline or pipe fitting are connected by metal layer.
5. the preparation method described in accordance with the claim 1 with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting,
It is characterized in that: 0.5mm≤compact silicon carbide ceramic thickness degree≤20mm, 0mm < foamed ceramics thickness degree≤20mm, 0.5mm≤gold
Belong to thickness≤10mm of layer；Fluid, corrosion or the abrasive media that compact silicon carbide ceramic layer is directly transported with pipeline or pipe fitting connect
Touching, the porosity of compact silicon carbide ceramic layer is below 8%；The porosity of foamed ceramics layer is between 30%~90%, 0.1mm
Pore size≤7mm of≤foamed ceramics layer.
6. the preparation method described in accordance with the claim 1 with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting,
Be characterized in that: wear-and corrosion-resistant pipeline or pipe fitting include that isometrical, variable diameter concentric reducer, threeway or elbow transport pipe fitting.
7. the preparation method described in accordance with the claim 1 with silicon carbide ceramic abrasion-proof, the pipeline of anti-corrosion lining or pipe fitting,
Be characterized in that: wear-and corrosion-resistant lining is whole or Split assembled；In Split assembled, transitions smooth between each unit part,
Without obvious gap or step；Do not surpassed in a manner of entirety or Split assembled in use, having between wear-and corrosion-resistant lining and metal layer
Cross the gap of 5mm.
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| CN201511005296.7A CN106917918B (en) | 2015-12-28 | 2015-12-28 | With silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof |
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| CN201511005296.7A CN106917918B (en) | 2015-12-28 | 2015-12-28 | With silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof |
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| CN108826748A (en) * | 2018-05-18 | 2018-11-16 | 火忠英 | A kind of sewage water heat pump component using corrosion-resistant ceramic new material |
| CN111908933A (en) * | 2020-07-30 | 2020-11-10 | 山东中鹏特种陶瓷有限公司 | Preparation method of large-size sintered silicon carbide wear-resistant pipeline |
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| US5015610A (en) * | 1986-09-16 | 1991-05-14 | Lanxide Technology Company, Lp | Porous ceramic composite with dense surface |
| KR100441497B1 (en) * | 2002-01-22 | 2004-07-23 | 김광수 | Ceramic coated insulation pipe in inner surface |
| CN100491494C (en) * | 2006-04-05 | 2009-05-27 | 中国科学院金属研究所 | Preparation method of bi-continuous-phase composite friction material member of foaming silicon carbide/metal |
| CN102506268B (en) * | 2011-09-26 | 2013-11-06 | 辽宁卓异新材料有限公司 | Method for modifying wear resistance and corrosion prevention of metal component surface |
| CN102661451A (en) * | 2012-05-05 | 2012-09-12 | 漳州日盛建筑陶瓷有限公司 | Foaming ceramic thermal insulation pipe and preparation method thereof |
| CN106321991B (en) * | 2015-07-07 | 2019-02-19 | 中国科学院金属研究所 | It is a kind of with the wear-and corrosion-resistant pipeline of double ceramic linings or pipe fitting and preparation method thereof |
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