CN106321991B - It is a kind of with the wear-and corrosion-resistant pipeline of double ceramic linings or pipe fitting and preparation method thereof - Google Patents
It is a kind of with the wear-and corrosion-resistant pipeline of double ceramic linings or pipe fitting and preparation method thereof Download PDFInfo
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- CN106321991B CN106321991B CN201510394620.2A CN201510394620A CN106321991B CN 106321991 B CN106321991 B CN 106321991B CN 201510394620 A CN201510394620 A CN 201510394620A CN 106321991 B CN106321991 B CN 106321991B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 144
- 238000005260 corrosion Methods 0.000 title claims abstract description 110
- 230000007797 corrosion Effects 0.000 title claims abstract description 98
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 116
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 11
- 238000004513 sizing Methods 0.000 claims abstract description 10
- 238000005469 granulation Methods 0.000 claims abstract description 8
- 230000003179 granulation Effects 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- 239000007767 bonding agent Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000001723 curing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 12
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 10
- 238000005299 abrasion Methods 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 239000008187 granular material 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
- 229920005596 polymer binder Polymers 0.000 claims description 3
- 239000002491 polymer binding agent Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007605 air drying 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
- 238000007654 immersion Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 14
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 238000000465 moulding Methods 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
- 238000000034 method Methods 0.000 description 18
- 238000000498 ball milling Methods 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 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
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 239000002320 enamel (paints) Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 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 description 3
- 230000032258 transport Effects 0.000 description 3
- 239000001667 (E)-4-furan-2-ylbut-3-en-2-one Substances 0.000 description 2
- 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 2
- 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
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000002585 base Substances 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
- 239000011230 binding agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- 239000011241 protective layer Substances 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
- 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
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 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
- 230000008859 change Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect 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
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229920002521 macromolecule Polymers 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
- -1 modification Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000010412 perfusion Effects 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
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 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
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003466 welding Methods 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
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
It is specially a kind of with the wear-and corrosion-resistant pipeline of double ceramic linings 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 → granulation, prepare slurry → molding in flakes, 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 double ceramic linings
Wear-and corrosion-resistant pipeline or pipe fitting and preparation method thereof, utilize dense ceramic layers-foam pottery with double ceramic layers, two-arch tunnel
It is modified that enamel coating/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 the wear-and corrosion-resistant pipeline or pipe fitting of double ceramic linings and its preparation side
Method reduces thermal power generation 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 equal enterprises.
The technical scheme is that
A kind of wear-and corrosion-resistant pipeline or pipe fitting with double ceramic linings, the pipeline or pipe fitting are from the inside to the outside by wear-and corrosion-resistant
Lining and metal layer are constituted, and wear-and corrosion-resistant lining is made of surface layer and composite layer, and surface layer and composite layer are closely linked, structure
At an entirety；Surface layer is dense ceramic layers, and composite layer is foamed ceramics layer, and composite layer is grown directly upon the back of dense ceramic layers
Face, composite layer are contacted with metallic conduit or pipe fitting.
The wear-and corrosion-resistant pipeline or pipe fitting for having double ceramic linings, wear-and corrosion-resistant lining provide resist fluids and denude function
Can, metal layer provides a supporting role, and metal layer prevents accidental shock from bringing damage to pipeline or pipe fitting；Metal layer includes connection method
Orchid, wear-and corrosion-resistant pipeline or pipe fitting are connected by metal layer.
The wear-and corrosion-resistant pipeline or pipe fitting for having double ceramic linings, dense ceramic layers thickness is in 0.5mm~20mm
Between, foamed ceramics thickness degree is being greater than 0 between 20mm, and the thickness of metal layer is between 0.5mm~10mm；Dense ceramic layers
It is directly contacted with fluid, corrosion or the abrasive media that pipeline or pipe fitting transport, the porosity of dense ceramic layers is below 5%；Bubble
The porosity of foam ceramic layer is between 30%~90%, and the pore size of foamed ceramics layer is between 0.1mm~7mm.
The described wear-and corrosion-resistant pipeline or pipe fitting with double ceramic linings, wear-and corrosion-resistant pipeline or pipe fitting include it is isometrical,
Concentric reducer, threeway or the elbow of variable diameter transport pipe fitting.
The wear-and corrosion-resistant pipeline or pipe fitting for having double ceramic linings, wear-and corrosion-resistant lining is whole or seperated
Combination；In Split assembled, excess smoothness between each unit part, without obvious gap or step；With entirety or Split assembled side
Formula is in use, there is the gap no more than 5mm between wear-and corrosion-resistant lining and metal component.
Described has double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, firstly, by densification-foam one
Body ceramic lining is prepared into required shape and size；Then, frosting treatment or groove are carried out to the surface that needs protect
Change processing, improves the binding force of high polymer binder and metal；After again, by ceramic lining by mechanical engagement, connection, welding,
The mode for being bonded or inlaying is fixed to metalwork surface；Then, it is perfused using normal pressure, is centrifuged perfusion, vacuum suction or is injected into
Liquid polymeric binder is injected into foamed ceramics mesh by type method, after cured, vulcanization or solidification, obtains ceramic of compact
Layer-foamed ceramics layer/macromolecule bicontinuous phase compound material wear-and corrosion-resistant protective layer, and realize that protective layer and metal are prevented simultaneously
The firm connection of guard.
Described has double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, preparation step as follows: 1., inciting somebody to action
Organic resin is uniformly mixed with ceramic particle, curing agent, solvent；2., aforementioned mixture is granulated；3., the 2. granular original
Material is uniformly laid in a mold, and pressurization obtains dense ceramic layers green body；4., 1. gained mixture in solvent is added, obtain liquid
Foamed plastics is repeated in liquid slurry immersion, drying course, obtains the foamed ceramics layer base of required volume fraction by state slurry
Body；5., in 3. obtained one side surface of dense ceramic layers green body uniformly brush one layer of liquid slurry, then by foamed ceramics layer base
Body is bonded in dense ceramic layers billet surface, obtains the green body of wear-and corrosion-resistant lining；6., wear-and corrosion-resistant lining green body is put into it is fixed
Pattern tool, solidifying and setting；7., sample after sizing is machined to predetermined size, then bonding is the shape of bulk sample
Shape；If adopted a split structure, bonding is not had to；8., be pyrolyzed, sintering step, obtain finished product wear-and corrosion-resistant lining；⑨,
By metallic conduit or tube surface frosting treatment or trench processing is carried out, wear-and corrosion-resistant lining is bonded with high polymer binder
In metallic conduit or tube surface, complete wear-and corrosion-resistant pipeline or pipe fitting product are obtained.
Described has double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, the specific steps are as follows:
(1) press portions of resin ceramic particle: curing agent=100: (20~400): the mass ratio of (2~20) mixes above-mentioned original
Material, ball milling obtain feed powder after 0.5~2 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 (100~500) 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 (2~100) is prepared, and is made after mixing
Grain, granule size are press-formed between diameter 0.05mm~4mm, by raw material after granulation in filling in a mold, apply pressure
Between 1MPa~50MPa, 5~10min of pressure maintaining, ceramic of compact piece required for being obtained after depanning；
(4) by the foamed ceramics layer presoma that step (2) obtains and the ceramic of compact piece step (2) that step (3) obtains
Slurry bond together, place into pipeline or pipe fitting mold the sizing that is heating and curing；In this step, foamed ceramics layer is outside
Side, for dense ceramic layers in inboard, operation temperature is between 80 DEG C~400 DEG C；
(5) the machined means of sample after solidifying and setting obtain suitable shape, are one by corresponding exemplar bonding
It is whole；
(6) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains double ceramic layer wear-and corrosion-resistant lining finished products；
(7) 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.
Described have double wear-and corrosion-resistant pipelines of ceramic lining or a preparation method of pipe fitting, ceramic particle be silicon carbide,
The mixture of one or more of aluminium oxide, silica, silicon nitride, boron nitride or glass, being averaged for ceramic particle are straight
Diameter is between 20nm~2mm；Resin is the phenolic resin or epoxy resin of phenolic resin, modification, and resin form is solid powder
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 dense ceramic material will have abrasive fluid and metal
Component completely cuts off completely, can avoid fluid to the corrosion of metalwork for a long time, extend the service life of workpiece, and then reduce enterprise
Maintenance 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 the wear-and corrosion-resistant pipeline of double ceramic linings or the preparation method of pipe fitting.?
In this method, ceramic lining includes dense ceramic layers and foamed ceramics layer, and foamed ceramics layer is grown on dense ceramic layers, the two
It is an entirety, there is no combine gap.Wherein, dense ceramic layers are directly contacted with the fluid being transported, and provide wear-and corrosion-resistant
Performance.Foamed ceramics layer and organic binder are compound, and are bonded together by bonding agent and metal component, primarily serve
The effect of fixed ceramic layer, and in the case where dense ceramic layers failure, part wear and corrosion behavior is provided.Pass through this knot
Structure separates fluid and metal component, eliminates safe hidden trouble, and extends workpiece service life.Work in abrasion, corrosion and
Guard method provided by the invention can be used in metal component in the two and the environment deposited, improves equipment and workpiece to obtain
Service life improves working efficiency, reduces the using effect of production cost.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of double ceramic lining wear-and corrosion-resistant pipelines.
Fig. 2 is double ceramic layer wear-and corrosion-resistant linings that sintering finishes.
Fig. 3 is compound rear wear-and corrosion-resistant pipeline or pipe fitting the schematic diagram of the section structure.In figure, 1 dense ceramic layers；2 foams pottery
Enamel coating；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
→ granulation, preparation slurry → molding is in blocks, prepares heat cure sizing in foam (foamed ceramics layer) presoma → bonding → mold
→ machining, bonding forming → pyrolysis, sintering → compound finished product, it is specific as follows:
(1) press portions of resin ceramic particle: curing agent=100: (20~400): the mass ratio of (2~20) mixes above-mentioned original
Material, ball milling obtain feed powder after 0.5~2 hour, each material is uniformly mixed in feed powder, without apparent agglomeration；Wherein, resin
: ceramic particle: the preferred mass ratio of curing agent is 100: (30~350): (3~18)；
(2) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (100~500) 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 (2~100) is prepared, and is made after mixing
Grain, granule size are press-formed between diameter 0.05mm~4mm, by raw material after granulation in filling in a mold, apply pressure
Between 1MPa~50MPa, 5~10min of pressure maintaining, ceramic of compact piece, the thickness of ceramic of compact piece required for being obtained after depanning
Can by mold height and filling feed powder number regulate and control；
(4) by the foamed ceramics layer presoma that step (2) obtains and the ceramic of compact piece step (2) that step (3) obtains
Slurry bond together, place into pipeline or pipe fitting mold the sizing that is heating and curing.In this step, foamed ceramics layer is outside
Side, for dense ceramic layers 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) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains double ceramic layer wear-and corrosion-resistant lining finished product (figures
2)；
(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 figure 3, wear-and corrosion-resistant pipeline or pipe fitting after the present invention is compound, from the inside to the outside by 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
Dense ceramic layers 1, thickness is between 0.5mm~20mm, fluid which directly transports with pipeline or pipe fitting, burn into abrasion
Media contact provides wear-resisting, corrosion resisting property more better than metallic conduit or pipe fitting.Composite layer is foamed ceramics layer 2, is directly grown
It at the back side of dense ceramic layers 1, is contacted with metallic conduit or pipe fitting, bonding agent is filled in composite layer, it will be resistance to by the bonding agent
Anti-corrosion lining is ground to bond together with metallic conduit or pipe fitting.Wherein, bonding agent can be epoxylite or phenolic resinoid
Equal organic adhesives, bonding agent may be clay, the oxidation inorganic adhesives such as aluminium glue or silica gel.The foam of composite layer is made pottery
Porcelain structure helps to provide more stable, stronger adhesive effect, and thickness is being greater than 0 between 20mm.Outmost metal
Layer mainly provides a supporting role, and material is cast iron, stainless steel etc., and the thickness of metal layer is according to different use occasions in 0.5mm
Between~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) by quality than furfural acetone resin: silicon-carbide particles (10 μm of average diameter): p-methyl benzenesulfonic acid=100: 120: 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, without apparent agglomeration；
(2) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 200 ratio prepares liquid slurry, then by thickness
For 5mm foamed plastics in slurry sufficiently impregnate after squeeze remove extra slurry, later 120 DEG C air-dry.Air-dry rear sample again
Slurry is immersed, extra slurry between hole is blown away, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, obtains required bubble
Foam ceramic layer presoma；
(3) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 20 ratio is prepared, and is granulated after mixing, and particle is flat
Equal diameter is 2mm, raw material after granulation is press-formed in a mold in filling, application pressure is 20MPa, pressure maintaining 5min, depanning
After obtain required for ceramic of compact piece, ceramic of compact piece with a thickness of 6mm；
(4) slurry of the foamed ceramics layer presoma that (2) obtain and the ceramic of compact piece step (2) that (3) obtain is viscous
It is connected together, bonding agent is epoxy resin, places into pipeline or pipe fitting mold the sizing that is heating and curing.In this step, foam
On the outside, for dense ceramic layers in inboard, solidification temperature is 200 DEG C to ceramic layer；
(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) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains wear-and corrosion-resistant 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.
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) by quality than epoxy resin: alumina particulate: citric acid=100: 50: 5 ratio mixes above-mentioned raw materials, ball
Mill obtained slurry after 2 hours；The alumina particulate granularity is 2 microns；
(2) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 200 ratio prepares liquid slurry, then by thickness
For 5mm foamed plastics in slurry sufficiently impregnate after squeeze remove extra slurry, later 120 DEG C air-dry.Air-dry rear sample again
Slurry is immersed, extra slurry between hole is blown away, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, obtains required bubble
Foam ceramic layer presoma；
(3) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 20 ratio is prepared, and is granulated after mixing, and particle is flat
Equal diameter is 2mm, raw material after granulation is press-formed in a mold in filling, application pressure is 20MPa, pressure maintaining 5min, depanning
After obtain required for ceramic of compact piece, ceramic of compact piece with a thickness of 6mm；
(4) slurry of the foamed ceramics layer presoma that (2) obtain and the ceramic of compact piece step (2) that (3) obtain is viscous
It is connected together, bonding agent is phenolic resin, places into pipeline or pipe fitting mold the sizing that is heating and curing.In this step, foam
On the outside, for dense ceramic layers in inboard, solidification temperature is 200 DEG C to ceramic layer；
(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) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains wear-and corrosion-resistant 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.
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) by quality than phenolic resin: silicon-carbide particles: p-methyl benzenesulfonic acid=100: 50: 5 ratio mixes above-mentioned original
Material, ball milling obtained slurry after 2 hours；The silicon-carbide particles granularity is 2 microns.
(2) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 200 ratio prepares liquid slurry, then by thickness
For 5mm foamed plastics in slurry sufficiently impregnate after squeeze remove extra slurry, later 120 DEG C air-dry.Air-dry rear sample again
Slurry is immersed, extra slurry between hole is blown away, then 120 DEG C of high temperature air-dry.It so repeats the above steps 5 times, obtains required bubble
Foam ceramic layer presoma；
(3) by feed powder obtained by (1) with quality than feed powder: alcohol=100: 20 ratio is prepared, and is granulated after mixing, and particle is flat
Equal diameter is 2mm, raw material after granulation is press-formed in a mold in filling, application pressure is 20MPa, pressure maintaining 5min, depanning
After obtain required for ceramic of compact piece, ceramic of compact piece with a thickness of 6mm；
(4) slurry of the foamed ceramics layer presoma that (2) obtain and the ceramic of compact piece step (2) that (3) obtain is viscous
It is connected together, bonding agent is Aluminum sol, places into pipeline or pipe fitting mold the sizing that is heating and curing.In this step, foam is made pottery
On the outside, for dense ceramic layers in inboard, solidification temperature is 200 DEG C to enamel coating；
(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) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains wear-and corrosion-resistant ceramic 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.
Embodiment 4
Difference from Example 3 is that the present embodiment adopts water as solvent, remaining step is the same as embodiment 3.
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.
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 is same as Example 3.
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.
Embodiment 8
Difference from Example 6 is that ceramic particle used in the present embodiment is particulate boron nitride, particulate boron nitride granularity
It is 10 microns, remaining step is same as Example 6.
Embodiment 9
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.
Embodiment 10
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.
Embodiment 11
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.
Embodiment 12
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.
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 with the wear-and corrosion-resistant pipeline of double ceramic linings or the preparation method of pipe fitting, it is characterised in that: the pipeline or pipe
Part is 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, surface layer and multiple
It closes layer to be closely linked, constitutes an entirety；Surface layer is dense ceramic layers, and composite layer is foamed ceramics layer, and composite layer is viscous
It connects at the back side of dense ceramic layers, composite layer is contacted with metallic conduit or pipe fitting；
Preparation step is as follows: 1., by organic resin with ceramic particle, curing agent, solvent uniformly mixing；2., by aforementioned mixture
It is granulated；3., the 2. mixture is granulated after be uniformly laid in a mold, pressurization obtains dense ceramic layers green body；4., in 1. institute
It obtains in mixture and solvent is added, obtain liquid slurry, foamed plastics is repeated into immersion, drying course in liquid slurry, is obtained
The foamed ceramics layer green body of required volume fraction；5., in 3. obtained one side surface of dense ceramic layers green body uniformly brush one layer
Then foamed ceramics layer green body is bonded in dense ceramic layers billet surface, obtains the green body of wear-and corrosion-resistant lining by liquid slurry；
6., wear-and corrosion-resistant lining green body is put into shaper, solidifying and setting；7., sample after sizing is machined to regulation
Size, then bonding is the shape of bulk sample；If adopted a split structure, bonding is not had to；8., be pyrolyzed, be sintered step
Suddenly, finished product wear-and corrosion-resistant lining is obtained；9., by metallic conduit or tube surface frosting treatment or carry out trench processing, will be resistance to
It grinds anti-corrosion lining and is bonded in metallic conduit or tube surface with high polymer binder, obtain complete wear-and corrosion-resistant pipeline or pipe fitting
Product.
2. described in accordance with the claim 1 have double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature
It is, the specific steps are as follows:
(1) portions of resin ceramic particle: curing agent=100: (20~400): the mass ratio mixing above-mentioned raw materials of (2~20), ball is pressed
Mill obtained feed powder after 0.5~2 hour, and 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 (100~500) 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 presoma；
(3) feed powder obtained by step (1) is taken, by feed powder: solvent=100: the mass ratio of (2~100) is prepared, and is granulated after mixing,
Granule size is press-formed between diameter 0.05mm~4mm, by raw material after granulation in filling in a mold, and applying pressure is
Between 1MPa~50MPa, 5~10min of pressure maintaining, ceramic of compact piece required for being obtained after depanning；
(4) by the material of the foamed ceramics layer presoma that step (2) obtains and the ceramic of compact piece step (2) that step (3) obtains
Slurry bonds together, and places into pipeline or pipe fitting mold the sizing that is heating and curing；In this step, foamed ceramics layer on the outside,
For dense ceramic layers in inboard, operation temperature is between 80 DEG C~400 DEG C；
(5) the machined means of sample after solidifying and setting obtain suitable shape, are an entirety by corresponding exemplar bonding；
(6) the step of bulk sample after being bonded is pyrolyzed, is sintered obtains double ceramic layer wear-and corrosion-resistant lining finished products；
(7) 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. having double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature according to claim 2
It is, ceramic particle is the mixed of one or more of silicon carbide, aluminium oxide, silica, silicon nitride, boron nitride or glass
Object is closed, the average diameter of ceramic particle is between 20nm~2mm；Resin is the phenolic resin or asphalt mixtures modified by epoxy resin of phenolic resin, modification
Rouge, resin form are solid powder or liquid；Solvent is organic solvent: alcohol, acetone are inorganic molten to toluene or solvent
Agent: water.
4. described in accordance with the claim 1 have double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature
Be: wear-and corrosion-resistant lining provides resist fluids abrasion function, and metal layer provides a supporting role, and metal layer prevents accidental shock to pipe
Road or pipe fitting bring damage；Metal layer includes that connecting flange, wear-and corrosion-resistant pipeline or pipe fitting are connected by metal layer.
5. described in accordance with the claim 1 have double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature
Be: between 0.5mm~20mm, foamed ceramics thickness degree is being greater than 0 and is being less than or equal to 20mm, metal dense ceramic layers thickness
The thickness of layer is between 0.5mm~10mm；Fluid, corrosion or the abrasive media that dense ceramic layers are directly transported with pipeline or pipe fitting
Contact, the porosity of dense ceramic layers is below 5%；The porosity of foamed ceramics layer is between 30%~90%, foamed ceramics
The pore size of layer is between 0.1mm~7mm.
6. described in accordance with the claim 1 have double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature
Be: wear-and corrosion-resistant pipeline or pipe fitting include that isometrical, variable diameter concentric reducer, threeway or elbow transport pipe fitting.
7. described in accordance with the claim 1 have double wear-and corrosion-resistant pipelines of ceramic lining or the preparation method of pipe fitting, feature
Be: wear-and corrosion-resistant lining is whole or Split assembled；In Split assembled, excess smoothness between each unit part, without bright
Aobvious gap or step；It is being no more than in a manner of entirety or Split assembled in use, having between wear-and corrosion-resistant lining and metal component
The gap of 5mm.
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| CN106917918B (en) * | 2015-12-28 | 2019-05-14 | 中国科学院金属研究所 | With silicon carbide ceramic abrasion-proof, the pipeline of erosion lining or pipe fitting and preparation method thereof |
| CN113549279B (en) * | 2021-07-29 | 2023-01-31 | 三联泵业股份有限公司 | Wear-resistant and corrosion-resistant lining material and wear-resistant and corrosion-resistant pump with same |
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| US5947094A (en) * | 1995-08-16 | 1999-09-07 | Northrop Grumman Corporation | Methods and apparatus for making ceramic matrix composite lined automotive parts and fiber reinforced ceramic matrix composite automotive parts |
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| CN102506268A (en) * | 2011-09-26 | 2012-06-20 | 辽宁卓异新材料有限公司 | Method for modifying wear resistance and corrosion prevention of metal component surface |
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