CN106221559A - A kind of ordinary steel high-temp. resistant antioxidation coating and using method thereof - Google Patents
A kind of ordinary steel high-temp. resistant antioxidation coating and using method thereof Download PDFInfo
- Publication number
- CN106221559A CN106221559A CN201610585425.2A CN201610585425A CN106221559A CN 106221559 A CN106221559 A CN 106221559A CN 201610585425 A CN201610585425 A CN 201610585425A CN 106221559 A CN106221559 A CN 106221559A
- Authority
- CN
- China
- Prior art keywords
- parts
- temp
- ordinary steel
- coating
- steel high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2251—Oxides; Hydroxides of metals of chromium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses a kind of ordinary steel high-temp. resistant antioxidation coating and using method thereof, its object is to overcome existing ordinary steel high-temp. resistant antioxidation coating poor chemical stability, the problem come off easy to crack.The ordinary steel high-temp. resistant antioxidation coating that the present invention provides is made up of the raw material of following weight portion: Al2O3SiAlON SiC powder body 30～50 parts, Cr2O33～5 parts, compound binding agent 20～30 parts, Potassium borofluoride 0.5～1.5 parts, boron carbide 0.5～1.5 parts.The present invention uses Al2O3SiAlON SiC material is as the filler of ordinary steel high-temp. resistant antioxidation coating, improve heat-resisting quantity and the chemical stability of ordinary steel high-temp. resistant antioxidation coating, phthalocyanine resin prepolymer is used to prepare compound binding agent, improve binding agent stability at high temperature and viscosity, make that coating is the most easy to crack to come off, enhance coating oxidation-resistance property.The ordinary steel high-temp. resistant antioxidation coating that the present invention provides can spray or brush the billet surface in room temperature to 500 DEG C, and after hot-working completes, coating can come off in cooling procedure naturally, reduces dephosphorization difficulty.
Description
Technical field
The present invention relates to technical field of coatings, be specifically related to a kind of ordinary steel high-temp. resistant antioxidation coating and user thereof
Method.
Background technology
In existing steel rolling process, either ordinary steel or special steel, rolling, forge, quench, anneal, normalizing etc.
During heat treatment process, under high temperature action, easily produce surface oxidation phenomenon, but also can be along with alloying element dilution
And decarburization.This phenomenon directly governs the raising of Rolling Yield, have impact on the surface quality of finished steel.Prevent steel at present
The method of ironwork oxidization burning loss has high temperature coating method, vacuum method and protective atmosphere method.Vacuum method and protective atmosphere method are by steel
Ironwork is placed under vacuum environment or inert gas shielding environment and carries out heat treated, reduces high-temperature furnace gas and steel product surface
Contact, thus reduce the oxidative damage of steel product.But both approaches complex process, operating technology requires height, is not suitable for steel
Ironwork high-volume heat treatment process.High temperature coating method is a kind of heat treatment resist technology that recent decades grows up, relatively
Vacuum method and protective atmosphere method process technology, this guard method has small investment, low cost, simple to operate, strong adaptability etc.
Feature.The ultimate principle of coating technology is that coating is coated on billet surface, in progressively heating process, forms one layer and tightly invests
Billet surface and the higher dense sintering layer of intensity, this sinter layer is inert to billet surface oxide, thus prevent steel billet because of
The steel bonding problem directly contacted and produce, dense sintering layer has completely cut off oxidizing atmosphere simultaneously, effectively reduces billet oxidization and burns
Damage.
China Patent Publication No. 1036396A discloses a kind of blank plates of silicon steels heating antioxidizing paint, and this kind of coating is with commonly
Magnesia or useless magnesia brick powder and electric capacity magnesia are major ingredient, and light clay silicate frit and industry chromic oxide are adjuvant, with trimerization
Sodium phosphate and sodium polyacrylate are that additive is made.This coating uses magnesium chromium matter coating, although have certain anti-liquid
The ability that silicon steel corrodes, but its adhesive property is poor, easily ftractures and come off after causing this coating heated, additionally tripolyphosphate
Sodium and sodium polyacrylate chemical stability at high temperature is the most relatively poor, and causing this coating oxidation-protective effect is not to manage very much
Think.
Summary of the invention
It is an object of the invention to overcome existing ordinary steel high-temp. resistant antioxidation coating poor chemical stability, easy to crack come off
Problem, it is provided that a kind of ordinary steel high-temp. resistant antioxidation coating with good heat-resisting quantity and caking property.
Present invention also offers the using method of a kind of ordinary steel high-temp. resistant antioxidation coating.
The concrete technical scheme of the present invention is: a kind of ordinary steel high-temp. resistant antioxidation coating, by the raw material of following weight portion
Composition: Al2O3-SiAlON-SiC powder body 30～50 parts, Cr2O33～5 parts, compound binding agent 20～30 parts, Potassium borofluoride 0.5
～1.5 parts, boron carbide 0.5～1.5 parts, above each component particle size is 300～500 mesh.
Al2O3It is excellent that-SiAlON-SiC material has that fusing point is high, heat conductivity high, coefficient of thermal expansion is low, chemical stability is good etc.
Optimum energy, the present invention uses Al2O3-SiAlON-SiC material, as the filler of ordinary steel high-temp. resistant antioxidation coating, carries significantly
The heat-resisting quantity of high ordinary steel high-temp. resistant antioxidation coating and chemical stability.Cr2O3The paintability of coating can be improved,
Increase coating wettability at high temperature, form fine and close ORC.Potassium borofluoride is low-melting compound, in coating
In act the effect fluxed, increase the wettability of coating melt.Boron carbide at high temperature provides activity C atom, can strengthen base
The anti-decarburization capacity of body.
As preferably, Al2O3-SiAlON-SiC powder body is prepared by following methods:
(1) weight portion is respectively 20～40 parts of electro-corundums, 20～30 parts of alumina powders, 10～20 parts of Si powder and 5～
The base material of 10 parts of β-SiAlON powder mix homogeneously, is placed in ball grinder, with water for medium ball milling 1～2h；
(2) compound after ball milling in step (1) is dried at 80～100 DEG C, is dry mixed 20～30min the most again；
(3) compound after being dry mixed is compressing with the pressure of 70～80MPa, pressurize 2～3h, then in 180～200
DEG C baking 5～8h, then is placed in microwave high temperature atmosphere stove, under the conditions of buried charcoal after 1400～1500 DEG C of insulations 4～8h, natural
Cool down and i.e. obtain Al2O3-SiAlON-SiC powder body
The present invention uses microwave heating synthesis, sintering preparation Al2O3-SiAlON-SiC powder body, have reduction sintering temperature,
The advantage shortening the sintered heat insulating time.
As preferably, in step (1), base material is 1.5～2:1 with the mass ratio of water.The concentration of compound is at optimum range
In, mixture is easier to pulverize, and its mobility and dispersibility are more preferable, and pulverizing is evenly.
As preferably, the preparation method of compound binding agent is as follows:
Weight portion is respectively 60～80 parts of phthalocyanine resin prepolymers, 20～30 parts of fillers, 1～3 part of dimethylbenzene, 1～3 part
Triethoxysilane mix homogeneously, is heated to 150～250 DEG C, is incubated 2～5h, then is warming up to 250～350 DEG C, insulation 4～
10h, then it is warming up to 350～450 DEG C, it is incubated 4～10h, after natural cooling, i.e. obtains compound binding agent.
Binding agent at high temperature can preferentially form liquid phase viscid membrane, becomes the bonded bridge of coating refractory, makes coating shape
Become fine and close complex phase thin film.Phthalocyanine resin is the resin of a kind of new structure, and thermo oxidative stability and the chemistry with excellence are steady
Qualitative, the present invention uses phthalocyanine resin prepolymer to prepare compound binding agent, improves binding agent stability at high temperature and glues
Property, makes that coating is the most easy to crack to come off, and enhances coating oxidation-resistance property.Dimethylbenzene can improve the permeability of resin, 3-
Aminopropyltriethoxywerene werene can improve filler wettability in resin and dispersibility.
As preferably, the filler preparing compound binding agent is selected from one or more in silicon powder, boron carbide, montmorillonite.
As preferably, phthalocyanine resin prepolymer is prepared by following steps:
(1) adding 0.4mol 4-nitro phthalic nitrile in the there-necked flask of 500mL, 0.2mol 4,4-dihydroxy joins
Benzene, 0.44mol Anhydrous potassium carbonate and 200mL DMF, heat reaction system, control temperature 80～
90 DEG C, react 5h；
(2) after completion of the reaction, reactant liquor is poured slowly in the hydrochloric acid solution that pH is 4 precipitation, precipitate is filtered repeatedly,
Washing, until in neutrality, being subsequently placed in vacuum drying oven in 75 DEG C of drying, obtaining bi-phthalonitrile derivant；
(3) in bi-phthalonitrile derivant, the 2 of its weight 3% are added, 6-bis-(4-amino-benzene oxygen) benzonitrile,
15min is quickly stirred so that it is reaction uniformly, is then rapidly cooled to room temperature, sample pulverizing is i.e. obtained phthalocyanine tree at 250 DEG C
Fat prepolymer.
The itrile group of bis-phthalonitrile monomer can occur polyaddition to become reaction under certain heating condition, forms heteroaromatic
For the network structure of crosslinking points, the phthalocyanine resin using this monomer to prepare has excellent heat resistance.
The using method of a kind of ordinary steel high-temp. resistant antioxidation coating comprises the following steps:
(1) by ordinary steel high-temp. resistant antioxidation coating use water mix, stir, regulation slurry density be 1.2～
1.8kg/m3；
(2) slurry prepared sprayed or brush the billet surface at room temperature to 500 DEG C.
The ordinary steel high-temp. resistant antioxidation coating that the present invention provides can be brushed at room temperature billet surface drying and forming-film, it is possible to
To be painted on the billet surface of less than 500 DEG C, and under high temperature action, form continuous protective coating, effectively reduce steel billet and exist
Oxidization burning loss in heating process.
As preferably, slurry is 0.3～0.5mm at the coating layer thickness of billet surface, and usage of sizing agent is 0.3～0.5kg/
m2.Usage of sizing agent is few, and the coating of formation is the thinnest, and antioxidant effect is poor；Usage of sizing agent is too much, and the coating of formation is the thickest, can affect
Heat transfer in steel billet heat treatment process.
The invention has the beneficial effects as follows: (1) present invention uses Al2O3-SiAlON-SiC material is high temperature resistant anti-as ordinary steel
The filler of oxidation coating, substantially increases heat-resisting quantity and the chemical stability of ordinary steel high-temp. resistant antioxidation coating, the present invention
The ordinary steel high-temp. resistant antioxidation coating provided is applicable to 800～1400 DEG C/1～the antioxidation of 30h heat treatment；(2) present invention
Use phthalocyanine resin prepolymer to prepare compound binding agent, improve binding agent stability at high temperature and viscosity, make coating not
Easy to crack come off, enhance coating oxidation-resistance property；(3)Al2O3-SiAlON-SiC material has low coefficient of thermal expansion, heat
After machining, coating can be peeled off from billet surface in cooling procedure automatically, reduces dephosphorization difficulty.
Detailed description of the invention
Below by specific embodiment, technical scheme is described further.
In the present invention, if not refering in particular to, the raw material used and equipment etc. are all commercially available or commonly used in the art,
Method in embodiment, if no special instructions, is the conventional method of this area.
Embodiment 1
A kind of ordinary steel high-temp. resistant antioxidation coating, is made up of the raw material of following weight portion: Al2O3-SiAlON-SiC powder body
30 parts, Cr2O33 parts, compound binding agent 20 parts, Potassium borofluoride 0.5 part, boron carbide 0.5 part, above each component particle size is 300 mesh.
Wherein Al2O3-SiAlON-SiC powder body is prepared by following methods:
(1) weight portion being respectively 20 parts of electro-corundums, 20 parts of alumina powders, 10 parts of Si powder and 5 parts of β-SiAlON powder mix
Closing uniform base material, be placed in ball grinder, with water for medium ball milling 1h, wherein base material and water quality are than for 1.5:1；
(2) compound after ball milling in step (1) is dried at 80 DEG C, 20min is dry mixed the most again；
(3) compound after being dry mixed is compressing with the pressure of 70MPa, pressurize 2h, then toasts 5h in 180 DEG C, then
Being placed in microwave high temperature atmosphere stove, under the conditions of buried charcoal after 1400 DEG C of insulation 4h, natural cooling i.e. obtains Al2O3-SiAlON-SiC
Powder body.
Compound binding agent is prepared by following methods:
Weight portion is respectively 60 parts of phthalocyanine resin prepolymers, 20 parts of silicon powders, 1 part of dimethylbenzene, 1 part of 3-aminopropyl three
Ethoxysilane mix homogeneously, is heated to 150 DEG C, is incubated 2h, then is warming up to 250 DEG C, is incubated 4h, then is warming up to 350 DEG C of insulations
4h, i.e. obtains compound binding agent after natural cooling.
Phthalocyanine resin prepolymer is prepared by following steps:
(1) adding 0.4mol 4-nitro phthalic nitrile in the there-necked flask of 500mL, 0.2mol 4,4-dihydroxy joins
Benzene, 0.44mol Anhydrous potassium carbonate and 200mL DMF, heat reaction system, control temperature 80～
90 DEG C, react 5h；
(2) after completion of the reaction, reactant liquor is poured slowly in the hydrochloric acid solution that pH is 4 precipitation, precipitate is filtered repeatedly,
Washing, until in neutrality, being subsequently placed in vacuum drying oven in 75 DEG C of drying, obtaining bi-phthalonitrile derivant；
(3) in bi-phthalonitrile derivant, the 2 of its weight 3% are added, 6-bis-(4-amino-benzene oxygen) benzonitrile,
15min is quickly stirred so that it is reaction uniformly, is then rapidly cooled to room temperature, sample pulverizing is i.e. obtained phthalocyanine resin at 250 DEG C
Prepolymer.
Being mixed by the above-mentioned ordinary steel high-temp. resistant antioxidation coating water prepared, stir, regulation slurry density is
1.2kg/m3, it being sprayed on room temperature A36 ordinary steel billet surface, form the thick protective coating of one layer of 0.3mm, usage of sizing agent is
0.3kg/m2, the steel billet after coating is after 800 DEG C of heat treatment 8h, and matrix surface oxidization burning loss reduces by 95%, and coating is in cooling
During can naturally peel off.
Embodiment 2
A kind of ordinary steel high-temp. resistant antioxidation coating, is made up of the raw material of following weight portion: Al2O3-SiAlON-SiC powder body
40 parts, Cr2O34 parts, compound binding agent 25 parts, Potassium borofluoride 1 part, boron carbide 1 part, above each component particle size is 400 mesh.
Wherein Al2O3-SiAlON-SiC powder body is prepared by following methods:
(1) weight portion being respectively 30 parts of electro-corundums, 25 parts of alumina powders, 15 parts of Si powder and 7 parts of β-SiAlON powder mix
Closing uniform base material, be placed in ball grinder, with water for medium ball milling 1.5h, wherein base material is 1.7:1 with the mass ratio of water；
(2) compound after ball milling in step (1) is dried at 90 DEG C, 25min is dry mixed the most again；
(3) compound after being dry mixed is compressing with the pressure of 75MPa, pressurize 2.5h, then toasts 6h in 190 DEG C,
Being placed in microwave high temperature atmosphere stove, under the conditions of buried charcoal after 1450 DEG C of insulation 7h, natural cooling i.e. obtains Al again2O3-SiAlON-
SiC powder body.
Compound binding agent is prepared by following methods:
Weight portion is respectively 70 parts of phthalocyanine resin prepolymers, 20 parts of silicon powders, 5 parts of boron carbides, 2 parts of dimethylbenzene, 2 parts of 3-
Aminopropyltriethoxywerene werene mix homogeneously, is heated to 200 DEG C, is incubated 4h, then is warming up to 300 DEG C, is incubated 6h, then is warming up to
400 DEG C, it is incubated 8h, after natural cooling, i.e. obtains compound binding agent.
Phthalocyanine resin prepolymer is prepared by following steps:
(1) adding 0.4mol 4-nitro phthalic nitrile in the there-necked flask of 500mL, 0.2mol 4,4-dihydroxy joins
Benzene, 0.44mol Anhydrous potassium carbonate and 200mL DMF, heat reaction system, control temperature 80～
90 DEG C, react 5h；
(2) after completion of the reaction, reactant liquor is poured slowly in the hydrochloric acid solution that pH is 4 precipitation, precipitate is filtered repeatedly,
Washing, until in neutrality, being subsequently placed in vacuum drying oven in 75 DEG C of drying, obtaining bi-phthalonitrile derivant；
(3) in bi-phthalonitrile derivant, the 2 of its weight 3% are added, 6-bis-(4-amino-benzene oxygen) benzonitrile,
15min is quickly stirred so that it is reaction uniformly, is then rapidly cooled to room temperature, sample pulverizing is i.e. obtained phthalocyanine resin at 250 DEG C
Prepolymer.
Being mixed by the above-mentioned ordinary steel high-temp. resistant antioxidation coating water prepared, stir, regulation slurry density is
1.5kg/m3, it is sprayed on the Q235A ordinary steel billet surface of 500 DEG C, forms the thick protective coating of one layer of 0.4mm, usage of sizing agent
For 0.4kg/m2, the steel billet after coating is after 1100 DEG C of heat treatment 30h, and matrix surface oxidization burning loss reduces by 93%, and coating exists
Cooling procedure can be peeled off naturally.
Embodiment 3
A kind of ordinary steel high-temp. resistant antioxidation coating, is made up of the raw material of following weight portion: Al2O3-SiAlON-SiC powder body
50 parts, Cr2O35 parts, compound binding agent 30 parts, Potassium borofluoride 1.5 parts, boron carbide 1.5 parts, above each component particle size is 500 mesh.
Wherein Al2O3-SiAlON-SiC powder body is prepared by following methods:
(1) weight portion being respectively 40 parts of electro-corundums, 30 parts of alumina powders, 20 parts of Si powder and 10 parts of β-SiAlON powder mix
Closing uniform base material, be placed in ball grinder, with water for medium ball milling 2h, wherein base material is 2:1 with the mass ratio of water；
(2) compound after ball milling in step (1) is dried at 100 DEG C, 30min is dry mixed the most again；
(3) compound after being dry mixed is compressing with the pressure of 80MPa, pressurize 3h, then toasts 8h in 200 DEG C, then
Being placed in microwave high temperature atmosphere stove, under the conditions of buried charcoal after 1500 DEG C of insulation 8h, natural cooling i.e. obtains Al2O3-SiAlON-SiC
Powder body.
Compound binding agent is prepared by following methods:
Weight portion is respectively 80 parts of phthalocyanine resin prepolymers, 20 parts of silicon powders, 10 parts of montmorillonites, 3 parts of dimethylbenzene, 3 parts
APTES mix homogeneously, is heated to 250 DEG C, is incubated 5h, then is warming up to 350 DEG C, is incubated 10h, then rises
Temperature, to 450 DEG C, is incubated 10h, i.e. obtains compound binding agent after natural cooling.
Phthalocyanine resin prepolymer is prepared by following steps:
(1) adding 0.4mol 4-nitro phthalic nitrile in the there-necked flask of 500mL, 0.2mol 4,4-dihydroxy joins
Benzene, 0.44mol Anhydrous potassium carbonate and 200mL DMF, heat reaction system, control temperature 80～
90 DEG C, react 5h；
(2) after completion of the reaction, reactant liquor is poured slowly in the hydrochloric acid solution that pH is 4 precipitation, precipitate is filtered repeatedly,
Washing, until in neutrality, being subsequently placed in vacuum drying oven in 75 DEG C of drying, obtaining bi-phthalonitrile derivant；
(3) in bi-phthalonitrile derivant, the 2 of its weight 3% are added, 6-bis-(4-amino-benzene oxygen) benzonitrile,
15min is quickly stirred so that it is reaction uniformly, is then rapidly cooled to room temperature, sample pulverizing is i.e. obtained phthalocyanine resin at 250 DEG C
Prepolymer.
Being mixed by the above-mentioned ordinary steel high-temp. resistant antioxidation coating water prepared, stir, regulation slurry density is
1.8kg/m3, spraying the S235JR ordinary steel billet surface of 500 DEG C, form the thick protective coating of one layer of 0.5mm, usage of sizing agent is
0.5kg/m2, the steel billet after coating is after 1400 DEG C of heat treatment 20h, and matrix surface oxidization burning loss reduces by 91%, and coating is cold
But can naturally peel off during.
Claims (8)
1. an ordinary steel high-temp. resistant antioxidation coating, it is characterised in that be made up of the raw material of following weight portion: Al2O3-
SiAlON-SiC powder body 30～50 parts, Cr2O33～5 parts, compound binding agent 20～30 parts, Potassium borofluoride 0.5～1.5 parts, carbonization
Boron 0.5～1.5 parts, above each component particle size is 300～500 mesh.
A kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 1, it is characterised in that described Al2O3-
SiAlON-SiC powder body is prepared by following steps:
(1) weight portion is respectively 20～40 parts of electro-corundums, 20～30 parts of alumina powders, 10～20 parts of Si powder and 5～10 parts
The base material of β-SiAlON powder mix homogeneously, is placed in ball grinder, with water for medium ball milling 1～2h；
(2) compound after ball milling in step (1) is dried at 80～100 DEG C, is dry mixed 20～30min the most again；
(3) compound after being dry mixed is compressing with the pressure of 70～80MPa, pressurize 2～3h, then in 180～200 DEG C of bakings
Roasting 5～8h, then be placed in microwave high temperature atmosphere stove, under the conditions of buried charcoal after 1400～1500 DEG C of insulations 4～8h, natural cooling
Obtain Al2O3-SiAlON-SiC powder body.
A kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 2, it is characterised in that described step (1) base
Material is 1.5～2:1 with the mass ratio of water.
A kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 1, it is characterised in that described compound binding agent
Preparation method as follows:
Weight portion is respectively 60～80 parts of phthalocyanine resin prepolymers, 20～30 parts of fillers, 1～3 part of dimethylbenzene, 1～3 part of 3-ammonia
Base propyl-triethoxysilicane mix homogeneously, is heated to 150～250 DEG C, is incubated 2～5h, then is warming up to 250～350 DEG C, insulation
4～10h, then it is warming up to 350～450 DEG C, it is incubated 4～10h, after natural cooling, i.e. obtains compound binding agent.
A kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 4, it is characterised in that described filler is selected from silicon
One or more in micropowder, boron carbide, montmorillonite.
A kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 4, it is characterised in that described phthalocyanine resin is pre-
Polymers is prepared by following steps:
(1) in the there-necked flask of 500mL, 0.4mol 4-nitro phthalic nitrile is added, 0.2mol 4,4-dihydroxybiphenyl,
0.44mol Anhydrous potassium carbonate and 200mL DMF, heat reaction system, controls temperature 80～90
DEG C, react 5h；
(2) after completion of the reaction, reactant liquor is poured slowly in the hydrochloric acid solution that pH is 4 precipitation, precipitate is filtered repeatedly, washes
Wash, until in neutrality, being subsequently placed in vacuum drying oven in 75 DEG C of drying, obtaining bi-phthalonitrile derivant；
(3) in bi-phthalonitrile derivant, adding the 2 of its weight 3%, 6-bis-(4-amino-benzene oxygen) benzonitrile, 250
15min is quickly stirred so that it is reaction uniformly, is then rapidly cooled to room temperature, sample pulverizing is i.e. obtained phthalocyanine resin pre-polymerization at DEG C
Thing.
7. the using method of an ordinary steel high-temp. resistant antioxidation coating as claimed in claim 1, it is characterised in that include with
Lower step:
(1) being mixed by ordinary steel high-temp. resistant antioxidation coating use water, stir, regulation slurry density is 1.2～1.8kg/m3；
(2) slurry prepared sprayed or brush the billet surface in room temperature to 500 DEG C.
The using method of a kind of ordinary steel high-temp. resistant antioxidation coating the most according to claim 7, it is characterised in that slurry
Coating layer thickness at billet surface is 0.3～0.5mm, and usage of sizing agent is 0.3～0.5kg/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585425.2A CN106221559B (en) | 2016-07-21 | 2016-07-21 | A kind of ordinary steel high-temp. resistant antioxidation coating and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585425.2A CN106221559B (en) | 2016-07-21 | 2016-07-21 | A kind of ordinary steel high-temp. resistant antioxidation coating and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106221559A true CN106221559A (en) | 2016-12-14 |
| CN106221559B CN106221559B (en) | 2018-03-09 |
Family
ID=57532424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585425.2A Active CN106221559B (en) | 2016-07-21 | 2016-07-21 | A kind of ordinary steel high-temp. resistant antioxidation coating and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106221559B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634557A (en) * | 2016-12-08 | 2017-05-10 | 长兴天晟能源科技有限公司 | High-temperature-resisting and oxidation-resisting coating for SiAlON-AlN-TiN-based stainless steel |
| CN106676236A (en) * | 2016-12-08 | 2017-05-17 | 长兴天晟能源科技有限公司 | SiC-MgO-SiAlON ordinary steel heat treatment antioxidant coating and application method thereof |
| CN107746665A (en) * | 2017-10-04 | 2018-03-02 | 镇江中焱数控设备有限公司 | A kind of special antioxidant coating of Digit Control Machine Tool |
| CN107746664A (en) * | 2017-10-04 | 2018-03-02 | 镇江中焱数控设备有限公司 | A kind of preparation method of the special antioxidant coating of Digit Control Machine Tool |
| CN108179255A (en) * | 2017-12-29 | 2018-06-19 | 重庆全茂合渝科技有限公司 | A kind of clutch of motorcycle control stick normalizing process |
| CN109266061A (en) * | 2018-08-27 | 2019-01-25 | 南京工程学院 | It is a kind of for the protective coating of unimach and the preparation method of unimach protective coating |
| CN110093483A (en) * | 2019-05-13 | 2019-08-06 | 成都锦江电子系统工程有限公司 | A kind of anti-oxidation decarburizing coating and its protection heat treatment process |
| CN112940544A (en) * | 2019-12-11 | 2021-06-11 | 宝武特种冶金有限公司 | High-alloy billet anti-oxidation coating resistant to high temperature and long-time heating and coating method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154984A (en) * | 1986-10-09 | 1992-10-13 | Sumitomo Metal Industries, Ltd. | Metal-ceramic composite |
| CN1068282A (en) * | 1991-07-05 | 1993-01-27 | 张景禄 | High-temp paint preventing steel and slag adhesion |
| CN1071705A (en) * | 1992-07-06 | 1993-05-05 | 鞍山钢铁公司 | Prevent steel ingot and billet surface high temperature oxidation coating |
| JPH07150358A (en) * | 1993-12-01 | 1995-06-13 | Shin Etsu Chem Co Ltd | Diamond coating method by microwave plasma cvd |
| CN104844223A (en) * | 2015-04-24 | 2015-08-19 | 武汉科技大学 | Alkali metal salt based Sialon powder material and preparation method thereof |
-
2016
- 2016-07-21 CN CN201610585425.2A patent/CN106221559B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154984A (en) * | 1986-10-09 | 1992-10-13 | Sumitomo Metal Industries, Ltd. | Metal-ceramic composite |
| CN1068282A (en) * | 1991-07-05 | 1993-01-27 | 张景禄 | High-temp paint preventing steel and slag adhesion |
| CN1071705A (en) * | 1992-07-06 | 1993-05-05 | 鞍山钢铁公司 | Prevent steel ingot and billet surface high temperature oxidation coating |
| JPH07150358A (en) * | 1993-12-01 | 1995-06-13 | Shin Etsu Chem Co Ltd | Diamond coating method by microwave plasma cvd |
| CN104844223A (en) * | 2015-04-24 | 2015-08-19 | 武汉科技大学 | Alkali metal salt based Sialon powder material and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634557A (en) * | 2016-12-08 | 2017-05-10 | 长兴天晟能源科技有限公司 | High-temperature-resisting and oxidation-resisting coating for SiAlON-AlN-TiN-based stainless steel |
| CN106676236A (en) * | 2016-12-08 | 2017-05-17 | 长兴天晟能源科技有限公司 | SiC-MgO-SiAlON ordinary steel heat treatment antioxidant coating and application method thereof |
| CN107746665A (en) * | 2017-10-04 | 2018-03-02 | 镇江中焱数控设备有限公司 | A kind of special antioxidant coating of Digit Control Machine Tool |
| CN107746664A (en) * | 2017-10-04 | 2018-03-02 | 镇江中焱数控设备有限公司 | A kind of preparation method of the special antioxidant coating of Digit Control Machine Tool |
| CN108179255A (en) * | 2017-12-29 | 2018-06-19 | 重庆全茂合渝科技有限公司 | A kind of clutch of motorcycle control stick normalizing process |
| CN109266061A (en) * | 2018-08-27 | 2019-01-25 | 南京工程学院 | It is a kind of for the protective coating of unimach and the preparation method of unimach protective coating |
| CN109266061B (en) * | 2018-08-27 | 2020-11-10 | 南京工程学院 | Protective coating for ultrahigh-strength steel and preparation method of protective coating for ultrahigh-strength steel |
| CN110093483A (en) * | 2019-05-13 | 2019-08-06 | 成都锦江电子系统工程有限公司 | A kind of anti-oxidation decarburizing coating and its protection heat treatment process |
| CN112940544A (en) * | 2019-12-11 | 2021-06-11 | 宝武特种冶金有限公司 | High-alloy billet anti-oxidation coating resistant to high temperature and long-time heating and coating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106221559B (en) | 2018-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106221559B (en) | A kind of ordinary steel high-temp. resistant antioxidation coating and its application method | |
| CN100462335C (en) | Titanium carbide nitride slide board fire resistant material and preparation method thereof | |
| CN104387038B (en) | A kind of method improving alumina ceramic core high-temperature behavior | |
| CN102417356B (en) | Nanometer silicon carbide-series infrared radiation coating and preparation method thereof | |
| CN103589201A (en) | High-emissivity infrared energy-saving radiation paint and preparation method thereof | |
| CN107935634A (en) | A kind of refractory metal compound high-temperature oxidation resistant coating and preparation method thereof | |
| CN102248166A (en) | Electrode preparation process for depositing diamond abrasive tool with electric sparks | |
| CN103305039B (en) | Infrared radiation coating, preparation method thereof and infrared radiation coating | |
| CN101993246B (en) | Thermal conductive graphite blocks for blast-furnace bottom and hearth | |
| CN107602099A (en) | A kind of low carbon sliding plate brick of converter slag-resisting containing modified graphite and preparation method thereof | |
| CN102153357B (en) | Ultra-low cement or non-cement in-situ silicon carbide whisker self-bonding silicon carbide prefabricated part | |
| CN105174983B (en) | A kind of RH liners magnesia-spinel brick and preparation method thereof | |
| CN101423412B (en) | Method for preparing high performance silicon oxide combining silicon carbide refractory by low-temperature sintering | |
| CN104326756B (en) | A kind of pitch bonding agent and preparation method thereof for ultramicropore brick fuel | |
| CN103508743B (en) | High-temperature refractory | |
| CN103360124A (en) | Composite coating and application thereof in carbon/carbon composite material | |
| CN102491779A (en) | Method for improving poriness of alumina ceramic mold core | |
| CN106676236A (en) | SiC-MgO-SiAlON ordinary steel heat treatment antioxidant coating and application method thereof | |
| CN106634559A (en) | Al2O3-MgO-SiAlON common steel heat treatment anti-oxidation coating and use method thereof | |
| CN106700899A (en) | SiAlON-Al2O3-based high-temperature-resistant anti-oxidant coating for stainless steel | |
| CN106700898A (en) | SiAlON-SiC common steel heat treatment anti-oxidant coating and using method thereof | |
| KR101431148B1 (en) | Method of preparing ceramic coating material for low temperature sintering and coated product using the same | |
| CN110628244B (en) | High-temperature energy-saving anticorrosive paint for metal baffle of sintering trolley and application thereof | |
| CN102391001A (en) | High-temperature burnout-resistance billet coating and preparation method thereof | |
| CN106700900A (en) | SiAlON-SiC-ZrO2 plain steel heat treatment antioxidation paint and application method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313117 Zhejiang city of Huzhou province Changxing County Meishan Industrial Park Patentee after: Zhejiang juantuo New Material Co.,Ltd. Address before: 313117 Zhejiang city of Huzhou province Changxing County Meishan Industrial Park Patentee before: CHANGXING LOW CARBON ENERGY CONSERVATION TECHNOLOGY CO.,LTD. |