CN100510113C - Antioxidation coating material of Nano silicate in use for annealing billet in series - Google Patents
Antioxidation coating material of Nano silicate in use for annealing billet in series Download PDFInfo
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- CN100510113C CN100510113C CNB2007100538743A CN200710053874A CN100510113C CN 100510113 C CN100510113 C CN 100510113C CN B2007100538743 A CNB2007100538743 A CN B2007100538743A CN 200710053874 A CN200710053874 A CN 200710053874A CN 100510113 C CN100510113 C CN 100510113C
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Abstract
This invention relates to nanoscale silicate anti-oxidation coating for steel billet annealing. The coating is composed of: composite binder 20-30 wt.%, composite phosphate curing agent 8-12 wt.%, and composite aluminosilicate filler 58-72 wt.%. The coating can resist 1500 deg.C high temperature. The coating does not need any surface treatment, and can be directly sprayed onto the surface of steel billet, and cured at normal temperature for 10 min. Before annealed and hot-rolled, the coated steel billet is water-quenched for several seconds so that the coating layer is removed without any trace, and the surface quality is improved. The coating can reduce the loss-on-ignition of various steels, thus can be used for surface protection of refractory materials used as furnace kiln lining. Besides, the coating can also be used as inner and outer wall coating, and metal surface (bridge, bridge pier and dam) coating with water, corrosion and oxidation resistance.
Description
(1) technical field
The invention discloses a kind of antioxidant coating, particularly solve the antioxidant coating of hot rolling steel billet loss on ignition.
(2) background technology
The defective that existing annealing, hot rolling production technology exist is as follows: general steel billet series, carbon element steel billet series, high-quality steel billet series are 3.1～3.5% without the protection loss on ignition.Special steel base series is 1.01～1.81% without the protection loss on ignition.Various steel grades series bases are after hot rolling, and producing has 20～50% in various degree surface quality problems such as alligatoring, decorative pattern, and the quality that improves the surface is restricted.
Solve at present each billet in series such as stainless steel, general steel and in hot-roll annealing, reduce technical problems such as the formation of oxide skin and alligatoring, the defective that its traditional method exists is: 1, will carry out surface derusting before the annealing billet, like this requirement of extensive hot-rolled steel industry and turnout not allowed and do not have the place and carry out.2, certain curing time need be arranged, can not satisfy production needs the straight carbon steel base series of hot rolling maximum.3, can not adapt to 1250 ℃ high temperature, the high temperature impact about 1500 ℃.
Learn that through consulting Patent document data " antioxidizing paint " (application number 88101985.2) can only be applicable to that blank plates of silicon steels annealing is anti-oxidant, do not see the application of pushing actual production to so far; " fire-resistant oxidation resistant coating " (application number CN1050890A) only illustrates 800 ℃～1300 ℃ of heatproofs, and 1500 ℃ of maximum operation (service) temperatures have solved accidents such as decarburization, steel bonding, and the loss on ignition of reporting for work reduces coefficient and actual use technology effect; " pretreatment-free high-temp antioxidant coating " (application number 93106060.5) heatproof can only life-time service at 650 ℃～830 ℃, 1000 ℃ of maximum operation (service) temperatures are not appeared in the newspapers so far to producing actual the use; The document of process engineering institute of Chinese Academy of Sciences steel billet high-temp antioxidizing paint medium-sized test (science Times 2005.12.23) is reported for work and only general steel billet loss on ignition is reduced to 65%, and other stainless steel billet, extraordinary steel billet do not appear in the newspapers to the description of producing and using.
(3) summary of the invention
The present invention is directed to and solve domestic and international steel mill for many years when all kinds of steel grade base of annealing, hot rolling, technical barriers such as the oxide skin of generation, alligatoring, oxide skin steel bonding provide a kind of antioxidation coating material of Nano silicate.
The concrete technical scheme that the present invention adopts is: this antioxidation coating material of Nano silicate that is used for annealing billet in series, by weight hundred than being that 20～30% composite adhesives, 8～12% composite phosphate solidifying agent, 58～72% Smecta fillers are formed.
Described composite adhesive is 40～70% modification potash water glass and 0～30% modification sodium silicate by weight percent, 0～30% modification lithium silicate, and one or more components in 0～30% the comprehensive silicon colloidal sol mix to be formed.
Potash water glass modulus 1.35～4.5 in the contained modification potash water glass of described composite adhesive, wherein containing weight percent is 1～35% silicon-dioxide, 1～30% potassium oxide, 40～70% water, granularity is that 20～50 nanometers, weight percent are 0.1～65% high-alumina fly;
Sodium silicate modulus in the contained modification sodium silicate of described composite adhesive is 1.4～4.5, wherein containing weight percent is silica 1～40%, 1～25% sodium oxide, 40～70% water, granularity is that 30～50 nanometers, weight percent are 0.1～15% zirconium dioxide;
Containing weight percent in the contained modification lithium silicate of described composite adhesive is 20～30% silicon-dioxide, 2～3% lithiums, and 60～80% water, granularity is that 20～50 nanometers, weight percent are 0.1～20% chromic oxide;
Comprehensive silicon colloidal sol contained in the described composite adhesive is that 5～50 nanometers, weight percent are 25～36% silicon-dioxide by granularity, granularity is that 20～50 nanometers, weight percent are 0.1～0.5% high-alumina fly, weight percent is that 60～99% water are formed, and the each component weight percent sum of described comprehensive silicon colloidal sol is 100%.
Described composite phosphate solidifying agent is 53～75% phosphoric acid, 20～25% high-alumina flies and 0～15% zinc oxide by weight percent, 0～15% magnesium oxide, and one or more components in 0～10% plumbous oxide mix to be formed.Phosphorous 85% as the phosphoric acid of raw material, proportion 1.71g/cm3; The high-alumina fly granularity is 20～50 nanometers, and wherein dioxide-containing silica is 20%, and aluminium sesquioxide content is 78%; The zinc oxide granularity is 325 orders, and wherein the content of zinc oxide is 99%; Magnesium oxide granularity is 325 orders, and wherein content of magnesia is 99%; The plumbous oxide granularity is 325 orders, and wherein plumbous oxide content is 99%.(described content all is weight percentage)
Described Smecta filler is 5～22% high-alumina flies, 2～5% Magnesium Silicate q-agents, 5～10% pure aluminium silicate and 0～35% glass powder by weight percent, 0～12% kaolin, 0～13% silica powder, 0～85% silicon carbide, one or more components in 0～6% zirconium powder mix to be formed.Wherein dioxide-containing silica is 20%, aluminium sesquioxide content is 78% as 800 height of eye aluminium powders of raw material; Wherein dioxide-containing silica is 60% to 1000 order Magnesium Silicate q-agents, content of magnesia is 40%; Wherein dioxide-containing silica is 65% to 1000 order pure aluminium silicate, aluminium sesquioxide content is 35%; 800 order glass powder wherein dioxide-containing silica are 99%; Wherein dioxide-containing silica is 60% to 1000 order kaolin, aluminium sesquioxide content is 40%; 800 order silica powders wherein dioxide-containing silica are 99%; Wherein dioxide-containing silica is 97% to 1um～10um silicon carbide, carbon content is 0.5%.2000 order zirconium powders wherein zirconium dioxide content are 99%.
The production method of antioxidation coating material of Nano silicate of the present invention does not have special restriction, just above-mentioned composite adhesive, composite phosphate solidifying agent and Smecta filler is mixed and stirs 10-20 minute, gets product.Its density 1.85g/cm3～2.2g/cm3, pH value 10～13,20 ℃≤20 minutes set time.
It is to be noted that composite phosphate solidifying agent production method has ask for something to forming the composite adhesive in the silicate antioxidant coating of the present invention.Specific as follows described.
The production technique of modification potash water glass is as follows: high-alumina fly mixes with unmodified potash water glass, places in the reactor, and in the time of 80 ℃～120 ℃, stirring reaction got the modification potash water glass in 48～55 hours.The modification potash water glass modulus of gained is 1.35～4.5.Wherein dioxide-containing silica is 1%～35%, and potassium oxide content is 1～30%, and water-content is 40～70%; High-alumina fly is as properties-correcting agent, and granularity is 20～50 nanometers, and wherein dioxide-containing silica is 20%, and aluminium sesquioxide content is 78%, and add-on is 0.1～65% (described content all is weight percentage) of unmodified potash water glass.
The production technique of modification sodium silicate is as follows: zirconium powder mixes with unmodified sodium silicate, places in the reactor, and in the time of 80 ℃～120 ℃, stirring reaction got the modification sodium silicate in 48～55 hours.The modification sodium silicate modulus of gained is 1.4～4.5.Wherein dioxide-containing silica is 1～40%, sodium oxide content is 1～25%, water-content is 40～70%, the nano level zirconium powder is as properties-correcting agent, granularity is 30～50 nanometers, wherein zirconium dioxide content is 99%, and add-on is 0.1～15% (described content all is weight percentage) of unmodified sodium silicate.
The production technique of modification lithium silicate is as follows: chromium powder mixes with unmodified lithium silicate, places in the reactor, and in the time of 80 ℃～120 ℃, stirring reaction got the modification lithium silicate in 48～55 hours.Dioxide-containing silica is 20～30% in the modification lithium silicate of gained, and lithium content is 2～3%, and water-content is 60～80%; The nano level chromium powder is as properties-correcting agent, and granularity is 20～50 nanometers, and wherein containing chromic oxide is 99%, and add-on is 0.1～20% (described content all is weight percentage) of unmodified lithium silicate.
The production technique of comprehensive silicon colloidal sol is as follows: high-alumina fly mixes with unmodified silicon sol, places in the reactor, and in the time of 80 ℃～120 ℃, stirring reaction got comprehensive silicon colloidal sol in 80～120 hours.Silicon-dioxide granularity in the comprehensive silicon colloidal sol of gained is 5～50 nanometers, and content is 1～40%, and water-content is 60～99%; As the high-alumina fly of properties-correcting agent, granularity is 20～50 nanometers, and wherein dioxide-containing silica is 20%, and aluminium sesquioxide content is 78%, and add-on is 0.1～0.5% (described content all is weight percentage) of silicon sol.
By modification potash water glass and modification sodium silicate, or modification lithium silicate, or one of comprehensive silicon colloidal sol or mix is formed composite adhesive, and to produce blending process as follows: the modification potash water glass is with after one or several component of modification sodium silicate or modification lithium silicate or comprehensive silicon colloidal sol mixes, place in the reactor, in the time of 35 ℃～80 ℃, stirring reaction got composite adhesive in 80～120 minutes.
Composite phosphate solidifying agent production technique is as follows: phosphoric acid, high-alumina fly and zinc oxide, or magnesium oxide, or one or several component of plumbous oxide mixes, under 110 ℃～130 ℃ of temperature, reacted 10～20 minutes, 300 ℃ were dewatered 8～12 hours, dried 2 hours, and were ground into 1000 orders and promptly get the composite phosphate solidifying agent for 650 ℃.Phosphorous 85% as the phosphoric acid of raw material, proportion 1.71g/cm3, add-on is a composite phosphate solidifying agent 53～75%; The high-alumina fly granularity is 20～50 nanometers, and wherein dioxide-containing silica is 20%, and aluminium sesquioxide content is 78%, and add-on is a composite phosphate solidifying agent 20～25%; The zinc oxide granularity is 325 orders, and wherein the content of zinc oxide is 99%, and add-on is a composite phosphate solidifying agent 0～10%; Magnesium oxide granularity is 325 orders, and wherein content of magnesia is 99%, and add-on is a composite phosphate solidifying agent 0～15%%; The plumbous oxide granularity is 325 orders, and wherein plumbous oxide content is 99%, and add-on is composite phosphate solidifying agent 0～10% (described content all is weight percentage).
For the raw material of Smecta filler, wherein dioxide-containing silica is 20% to 800 height of eye aluminium powders, aluminium sesquioxide content is 78%; Wherein dioxide-containing silica is 60% to 1000 order Magnesium Silicate q-agents, content of magnesia is 40%; Wherein dioxide-containing silica is 65% to 1000 order pure aluminium silicate, aluminium sesquioxide content is 35%; 800 order glass powder wherein dioxide-containing silica are 99%; Wherein dioxide-containing silica is 60% to 1000 order kaolin, aluminium sesquioxide content is 40%; 800 order silica powders wherein dioxide-containing silica are 99%; Wherein dioxide-containing silica is 97% to 1um～10um silicon carbide, carbon content is 0.5%.2000 order zirconium powders wherein zirconium dioxide content are 99%.
Its production technique does not have any special requirement, only need be with the various components of forming this filler by described mixed and stirred 20～60 minutes, and reach to mix and get final product.
Antioxidation coating material of Nano silicate performance characteristics of the present invention:
1, can directly spray various billet surfaces, without any need for the surface treatment of mode.
2, spray various billet surfaces, 20 ℃ solidified about 10 minutes, and the various billet surfaces after the spraying rub mutually, collide, and did not break away from, non-scale, soft or hard heavily fortified point be huge.
3, after the various annealing billet of spraying was come out of the stove, surperficial face look unanimity did not have any foreign matter and occurs.
4, during the annealing billet hot rolling of spraying, through several seconds kinds of shrend, the coating autospasy of billet surface, from from, do not stay the coating vestige.
5, the billet surface light after the hot rolling is of the same colour, solves the technical problem of alligatoring.
6, general steel billet series not the loss on ignition of coating be about 3.1～3.5%, the loss on ignition after the coating reduces to 0.16～0.2%.
7, stainless steel, extraordinary steel billet series not the loss on ignition of coating be 1.02～1.81%, the loss on ignition after the coating reduces to 0～0.02%.
8, technical barriers for many years such as oxidization burning loss in the various steel billet thermal treatments, essence disengaging, oxide skin steel bonding have been solved.
9, can be used for the stove in each field, the refractory surface of lining cutting is protected, and can play anti-oxidant, anti-aging, wear-resisting wiping, gasproof stream souring, improve 1～3 times than original work-ing life.
10, can be used on industry, field such as civilian as interior outer wall building coating, permanent as new, use cement and construct cement surface and various metal structure surface waterproof, anticorrosion, anti-oxidation such as the bridge in field, bridge pier, dam; Special performance with seawater corrosion resistance, 10% sea salt solution soaking did not have any variation in 3 years, can't be than being equal in the present silicate coating.
11, with low cost, the raw material of antioxidation coating material of Nano silicate are easy to get, and cost only is below 1/10th of steel billet scaling loss value.
12, a spray mo(u)lding of antioxidation coating material of Nano silicate.
(4) embodiment
Embodiment 1: preparation of nano silicate antioxidant coating (following weight percent).
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 1.35, proportion 1.53g/cm
3Potash water glass 100g mix with the high-alumina fly 65g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Sodium silicate 100g mix with the zirconium white 0.1g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 30% silicon-dioxide, contain lithium 2%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 0.1g powder of granularity 20 nanometers, under 100 ℃, mix the reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 50 nanometers, contain 30% silicon-dioxide mixes with the high-alumina fly 0.1g of granularity 30 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 50g, modification sodium silicate 20g, modification lithium silicate 5g and the comprehensive silicon colloidal sol 25g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 70g and granularity are the high-alumina fly 20g of 20 nanometers, and magnesium oxide 10g is under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 10 hours,, pulverize 1000 orders and get the composite phosphate solidifying agent 650 ℃ of oven dry 2 hours.
(7) preparation Smecta filler: get high-alumina fly 5g, kaolin 10g, Magnesium Silicate q-agent 5g, silica powder 10g, granularity is the silicon carbide 54g of 10um, zirconium powder 6g and pure aluminium silicate 10g mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 30g of step (5) preparation, the composite curing agent 12g of step (6) preparation also mixes stirring with the Smecta filler 58g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.85g/cm3, pH value 12 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 2: preparation of nano silicate antioxidant coating (below be weight percentage)
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 1.35, proportion 1.53g/cm
3Potash water glass 100g mix with the high-alumina fly 65g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Sodium silicate 100g mix with the zirconia powder 0.1g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 30% silicon-dioxide, contain lithium 2%, proportion 1.18g/cm
3Lithium silicate 100g, mix with the chromium oxide powder 0.1g of granularity 20 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 50 nanometers, contain 30% silicon-dioxide mixes with the high-alumina fly 0.1g of granularity 30 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 50g, modification sodium silicate 20g, modification lithium silicate 5g and the comprehensive silicon colloidal sol 25g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.。
(6) preparation composite phosphate solidifying agent: phosphoric acid 65g and granularity are the high-alumina fly 22g of 40 nanometers, magnesium oxide 3g, plumbous oxide 10g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(7) preparation Smecta filler: get glass powder 32g, high-alumina fly 22g, kaolin 12g, Magnesium Silicate q-agent 5g, silica powder 13g, zirconium powder 6g and pure aluminium silicate 10g mix to stir getting Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 28g of step (4) preparation, the composite phosphate solidifying agent 11g of step (5) preparation and the Smecta filler 61g for preparing with step (6), mix to stir promptly getting the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.92g/cm
3, pH value 13 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 3.
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 1.35, proportion 1.53g/cm
3Potash water glass 100g mix with the high-alumina fly 65g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Sodium silicate 100g mix with the zirconium dioxide 0.1g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 30% silicon-dioxide, contain lithium 2%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 0.1g powder of granularity 20 nanometers, under 100 ℃, mix the reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 50 nanometers, contain 30% silicon-dioxide mixes with the high-alumina fly 0.1g of granularity 30 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 50g, modification sodium silicate 20g, modification lithium silicate 5g and the comprehensive silicon colloidal sol 25g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 75g and high-alumina fly 25g, mix stirring reaction 10～20 minutes down and 300 ℃ of dehydrations 8～12 hours, dried 2 hours, and pulverized 1000 orders and get the composite phosphate solidifying agent for 650 ℃ at 120 ℃.
(7) preparation Smecta filler: high-alumina fly 5g, Magnesium Silicate q-agent 5g, granularity 10um silicon carbide 85g, pure aluminium silicate 5g, four kinds of components mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation antioxidation coating material of Nano silicate: get the composite adhesive 26g of step (3) preparation, the composite phosphate solidifying agent 10g of step (4) preparation also mixes to stir with the Smecta filler 64g of step (5) preparation and got antioxidation coating material of Nano silicate in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.1g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Embodiment 4: preparation of nano silicate antioxidant coating (below be weight percentage).
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 1.35, proportion 1.53g/cm
3Potash water glass 100g mix with the high-alumina fly 65g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Sodium silicate 100g mix with the zirconium dioxide 0.1g of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 30% silicon-dioxide, contain lithium 2%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 0.1g powder of granularity 20 nanometers, under 100 ℃, mix the reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 50 nanometers, contain 30% silicon-dioxide mixes with the high-alumina fly 0.1g of granularity 30 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 50g, modification sodium silicate 20g, modification lithium silicate 5g and the comprehensive silicon colloidal sol 25g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 53g and granularity are the high-alumina fly 25g of 50 nanometers, zinc oxide 15g, magnesium oxide 6g, plumbous oxide 1g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(7) preparation Smecta filler: glass powder 35g, high-alumina fly 22g, kaolin 2g, Magnesium Silicate q-agent 2g, silica powder 13g, granularity is the silicon carbide 20g of 1um, zirconium powder 1g and pure aluminium silicate 5g mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 20g of step (5) preparation, the composite curing agent 8g of step (6) preparation also mixes stirring with the Smecta filler 72g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.2g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Annotate: the composite adhesive proportioning of embodiment 1,2,3,4 is constant, transfers composite phosphate solidifying agent, the proportioning of Smecta filler and the add-on of antioxidation coating material of Nano silicate each component.General steel Q235A protection and the antioxidant property of embodiment 3 are good.
Embodiment 5: preparation of nano silicate antioxidant coating (following weight percent).
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 2.45, proportion 1.46g/cm
3Potash water glass 100g mix with the high-alumina fly 30g of granularity 40 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: get sodium silicate modulus (mol ratio) 3.5, proportion 1.4g/cm
3Sodium silicate 100g mix with the titanium dioxide zirconium powder 15g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 22% silicon-dioxide, contain 2.5% lithium, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromium oxide powder 10g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) be equipped with composite adhesive:, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes with modification potash water glass 60g, modification sodium silicate 10g, the modification lithium silicate 30g for preparing in step (1), (2), (3).
(5) preparation composite phosphate solidifying agent: phosphoric acid 70g and granularity are the high-alumina fly 20g of 20 nanometers, and magnesium oxide 10g is under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours,, pulverize 1000 orders and get the composite phosphate solidifying agent 650 ℃ of oven dry 2 hours.
(6) preparation Smecta filler: high-alumina fly 5g, kaolin 10g, Magnesium Silicate q-agent 5g, silica powder 10g, granularity is the silicon carbide 54g of 10um, zirconium powder 6g and pure aluminium silicate 10g mix stirring and got Smecta filler 100g in 20～60 minutes.
(7) preparation of nano silicate antioxidant coating: get the composite adhesive 30g of step (5) preparation, the composite curing agent 12g of step (6) preparation also mixes stirring with the Smecta filler 58g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.85g/cm
3, pH value 12 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 6: preparation of nano silicate antioxidant coating (below be weight percentage)
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 2.45, proportion 1.46g/cm
3Potash water glass 100g mix with the high-alumina fly 30g of granularity 40 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: get sodium silicate modulus (mol ratio) 3.5, proportion 1.4g/cm
3Sodium silicate 100g mix with the titanium dioxide zirconium powder 15g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 22% silicon-dioxide, contain 2.5% lithium, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromium oxide powder 10g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) be equipped with composite adhesive:, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes with modification potash water glass 60g, modification sodium silicate 10g, the modification lithium silicate 30g for preparing in step (1), (2), (3).
(5) preparation composite phosphate solidifying agent: phosphoric acid 65g and granularity are the high-alumina fly 22g of 40 nanometers, magnesium oxide 3g, plumbous oxide 10g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(6) preparation Smecta filler: glass powder 32g, high-alumina fly 22g, granularity is kaolin 12g, Magnesium Silicate q-agent 5g, silica powder 13g, zirconium powder 6g and pure aluminium silicate 10g mix to stir getting Smecta filler 100g in 20～60 minutes.
(7) preparation of nano silicate antioxidant coating: get the composite adhesive 28g of step (4) preparation, the composite phosphate solidifying agent 11g of step (5) preparation and the Smecta filler 61g for preparing with step (6), mix to stir promptly getting the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.92g/cm
3, pH value 13 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 7: preparation of nano silicate antioxidant coating (following weight percent)
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 2.45, proportion 1.46g/cm
3Potash water glass 100g mix with the high-alumina fly 30g of granularity 40 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: get sodium silicate modulus (mol ratio) 3.5, proportion 1.4g/cm
3Sodium silicate 100g mix with the titanium dioxide zirconium powder 15g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 22% silicon-dioxide, contain 2.5% lithium, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromium oxide powder 10g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) be equipped with composite adhesive:, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes with modification potash water glass 60g, modification sodium silicate 10g, the modification lithium silicate 30g for preparing in step (1), (2), (3).。
(5) preparation composite phosphate solidifying agent: phosphoric acid 75g and granularity are the high-alumina fly 25g of 50 nanometers, mix stirring reaction 10～20 minutes down and 300 ℃ of dehydrations 8～12 hours, dry 2 hours, and pulverized 1000 orders and get the composite phosphate solidifying agent for 650 ℃ at 120 ℃.
(6) preparation Smecta filler: high-alumina fly 5g, Magnesium Silicate q-agent 5g, granularity 10um silicon carbide 85g, pure aluminium silicate 5g, four kinds of components mix stirring and got Smecta filler 100g in 20～60 minutes.
(7) preparation antioxidation coating material of Nano silicate: get the composite adhesive 26g of step (3) preparation, the composite phosphate solidifying agent 10g of step (4) preparation also mixes to stir with the Smecta filler 64g of step (5) preparation and got antioxidation coating material of Nano silicate in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.1g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Embodiment 8: preparation of nano silicate antioxidant coating (below be weight percentage).
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 2.45, proportion 1.46g/cm
3Potash water glass 100g mix with the high-alumina fly 30g of granularity 40 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: get sodium silicate modulus (mol ratio) 3.5, proportion 1.4g/cm
3Sodium silicate 100g mix with the titanium dioxide zirconium powder 15g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 22% silicon-dioxide, contain 2.5% lithium, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromium oxide powder 10g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) be equipped with composite adhesive:, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes with modification potash water glass 60g, modification sodium silicate 10g, the modification lithium silicate 30g for preparing in step (1), (2), (3).
(5) preparation composite phosphate solidifying agent: phosphoric acid 53g and high-alumina fly 25g, zinc oxide 15g, magnesium oxide 6g, plumbous oxide 1g under 120 ℃, mixes and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours,, pulverize 1000 orders and get the composite phosphate solidifying agent 650 ℃ of oven dry 2 hours.
(6) preparation Smecta filler: glass powder 35g, high-alumina fly 22g, kaolin 2g, Magnesium Silicate q-agent 2g, silica powder 13g, granularity is the silicon carbide 20g of 1um, zirconium powder 1g and pure aluminium silicate 5g mix stirring and got Smecta filler 100g in 20～60 minutes.
(7) preparation of nano silicate antioxidant coating: get the composite adhesive 20g of step (5) preparation, the composite curing agent 8g of step (6) preparation also mixes stirring with the Smecta filler 72g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.2g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Annotate: the composite adhesive proportioning of embodiment 5,6,7,8 is constant, transfers composite phosphate solidifying agent, the proportioning of Smecta filler and the add-on of antioxidation coating material of Nano silicate each component.Nonmagnetic steel 20Mn23AL protection and the antioxidant property of embodiment 6 are good.
Embodiment 9: preparation of nano silicate antioxidant coating (following weight percent).
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 3.5, proportion 1.4g/cm
3Potash water glass 100g and granularity be that the high-alumina fly 10g of 20 nanometers mixes, 100 ℃ of following stirring reactions 50 hours the modification potash water glass.
(2) preparation comprehensive silicon colloidal sol: to get the silicon-dioxide granularity be 15 nanometers, contain the silicon sol 100g of 25% silicon-dioxide and the high-alumina fly 0.2g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(3) prepare composite adhesive: get the modification potash water glass 70g of step (1) preparation and the comprehensive silicon colloidal sol 30g of step (2) preparation, under 50 ℃, mix to stir getting composite adhesive 100g in 100 minutes.。
(4) preparation composite phosphate solidifying agent: phosphoric acid 70g and high-alumina fly 20g, magnesium oxide 10g under 120 ℃, mixes and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverizes 1000 orders and gets the composite phosphate solidifying agent.
(5) preparation Smecta filler: high-alumina fly 5g, kaolin 10g, Magnesium Silicate q-agent 5g, silica powder 10g, granularity is the silicon carbide 54g of 10um, zirconium powder 6g and pure aluminium silicate 10g mix stirring and got Smecta filler 100g in 20～60 minutes.
(6) preparation of nano silicate antioxidant coating: get the composite adhesive 30g of step (5) preparation, the composite curing agent 12g of step (6) preparation also mixes stirring with the Smecta filler 58g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.85g/cm
3, pH value 12 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 10: preparation of nano silicate antioxidant coating (below be weight percentage)
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 3.5, proportion 1.4g/cm
3Potash water glass 100g and granularity be that the high-alumina fly 10g of 20 nanometers mixes, 100 ℃ of following stirring reactions 50 hours the modification potash water glass.
(2) preparation comprehensive silicon colloidal sol: to get the silicon-dioxide granularity be 15 nanometers, contain the silicon sol 100g of 25% silicon-dioxide and the high-alumina fly 0.2g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(3) prepare composite adhesive: get the modification potash water glass 70g of step (1) preparation and the comprehensive silicon colloidal sol 30g of step (2) preparation, under 50 ℃, mix to stir getting composite adhesive 100g in 100 minutes.
(4) preparation composite phosphate solidifying agent: phosphoric acid 65g and granularity are the high-alumina fly 22g of 40 nanometers, magnesium oxide 3g, plumbous oxide 10g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(5) preparation Smecta filler: glass powder 32g, high-alumina fly 22g, granularity is kaolin 12g, Magnesium Silicate q-agent 5g, silica powder 13g, zirconium powder 6g and pure aluminium silicate 10g mix to stir getting Smecta filler 100g in 20～60 minutes.
(6) preparation of nano silicate antioxidant coating: get the composite adhesive 28g of step (4) preparation, the composite phosphate solidifying agent 11g of step (5) preparation and the Smecta filler 61g for preparing with step (6), mix to stir promptly getting the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.92g/cm
3, pH value 13 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 11: preparation of nano silicate antioxidant coating (following weight percent)
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 3.5, proportion 1.4g/cm
3Potash water glass 100g and granularity be that the high-alumina fly 10g of 20 nanometers mixes, 100 ℃ of following stirring reactions 50 hours the modification potash water glass.
(2) preparation comprehensive silicon colloidal sol: to get the silicon-dioxide granularity be 15 nanometers, contain the silicon sol 100g of 25% silicon-dioxide and the high-alumina fly 0.2g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(3) prepare composite adhesive: get the modification potash water glass 70g of step (1) preparation and the comprehensive silicon colloidal sol 30g of step (2) preparation, under 50 ℃, mix to stir getting composite adhesive 100g in 100 minutes.
(4) preparation composite phosphate solidifying agent: phosphoric acid 75g and high-alumina fly 25g, mix stirring reaction 10～20 minutes down and 300 ℃ of dehydrations 8～12 hours, dried 2 hours, and pulverized 1000 orders and get the composite phosphate solidifying agent for 650 ℃ at 120 ℃.
(5) preparation Smecta filler: high-alumina fly 5g, Magnesium Silicate q-agent 5g, granularity 10um silicon carbide 85g, pure aluminium silicate 5g, four kinds of components mix stirring and got Smecta filler 100g in 20～60 minutes.
(6) preparation antioxidation coating material of Nano silicate: get the composite adhesive 26g of step (3) preparation, the composite phosphate solidifying agent 10g of step (4) preparation also mixes to stir with the Smecta filler 64g of step (5) preparation and got antioxidation coating material of Nano silicate in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.1g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Embodiment 12: preparation of nano silicate antioxidant coating (below be weight percentage).
(1) preparation modification potash water glass: get potash water glass modulus (mol ratio) 3.5, proportion 1.4g/cm
3Potash water glass 100g and granularity be that the high-alumina fly 10g of 20 nanometers mixes, 100 ℃ of following stirring reactions 50 hours the modification potash water glass.
(2) preparation comprehensive silicon colloidal sol: to get the silicon-dioxide granularity be 15 nanometers, contain the silicon sol 100g of 25% silicon-dioxide and the high-alumina fly 0.2g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(3) prepare composite adhesive: get the modification potash water glass 70g of step (1) preparation and the comprehensive silicon colloidal sol 30g of step (2) preparation, under 50 ℃, mix to stir getting composite adhesive 100g in 100 minutes.。
(4) preparation composite phosphate solidifying agent: phosphoric acid 53g and high-alumina fly 25g, zinc oxide 15g, magnesium oxide 6g, plumbous oxide 1g under 120 ℃, mixes and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours,, pulverize 1000 orders and get the composite phosphate solidifying agent 650 ℃ of oven dry 2 hours.
(5) preparation Smecta filler: glass powder 35g, high-alumina fly 22g kaolin 2g, Magnesium Silicate q-agent 2g, silica powder 13g, granularity is the silicon carbide 20g of 1um, zirconium powder 1g and pure aluminium silicate 5g mix stirring and got Smecta filler 100g in 20～60 minutes.
(6) preparation of nano silicate antioxidant coating: get the composite adhesive 20g of step (5) preparation, the composite curing agent 8g of step (6) preparation also mixes stirring with the Smecta filler 72g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.2g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Annotate: the composite adhesive proportioning of embodiment 9,10,11,12 is constant, transfers composite phosphate solidifying agent, the proportioning of Smecta filler and the add-on of antioxidation coating material of Nano silicate each component.Special steel 9Ni protection and the antioxidant property of embodiment 9 are good.
Embodiment 13: preparation of nano silicate antioxidant coating (following weight percent).
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Potash water glass 100g mix with the high-alumina fly 0.1g of granularity 20 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 1.4, proportion 1.53g/cm
3Sodium silicate 100g mix with the zirconium dioxide 8g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 20% silicon-dioxide, contain lithium 3%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 20g powder of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 5 nanometers, contain 36% silicon-dioxide mixes with the high-alumina fly 0.5g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 40g, modification sodium silicate 30g, modification lithium silicate 10g and the comprehensive silicon colloidal sol 20g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 70g and granularity are the high-alumina fly 20g of 20 nanometers, and magnesium oxide 10g is under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours,, pulverize 1000 orders and get the composite phosphate solidifying agent 650 ℃ of oven dry 2 hours.
(7) preparation Smecta filler: high-alumina fly 5g, kaolin 10g, Magnesium Silicate q-agent 5g, silica powder 10g, granularity is the silicon carbide 54g of 10um, zirconium powder 6g and pure aluminium silicate 10g mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 30g of step (5) preparation, the composite curing agent 12g of step (6) preparation also mixes stirring with the Smecta filler 58g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.85g/cm
3, pH value 12 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 14: preparation of nano silicate antioxidant coating (below be weight percentage)
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Potash water glass 100g mix with the high-alumina fly 0.1g of granularity 20 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 1.4, proportion 1.53g/cm
3Sodium silicate 100g mix with the zirconium dioxide 8g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 20% silicon-dioxide, contain lithium 3%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 20g powder of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 5 nanometers, contain 36% silicon-dioxide mixes with the high-alumina fly 0.5g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 40g, modification sodium silicate 30g, modification lithium silicate 10g and the comprehensive silicon colloidal sol 20g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 65g and granularity are the high-alumina fly 22g of 40 nanometers, magnesium oxide 3g, plumbous oxide 10g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(7) preparation Smecta filler: glass powder 32g high-alumina fly 22g, granularity is kaolin 12g, Magnesium Silicate q-agent 5g, silica powder 13g, zirconium powder 6g and pure aluminium silicate 10g mix to stir getting Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 28g of step (4) preparation, the composite phosphate solidifying agent 11g of step (5) preparation and the Smecta filler 61g for preparing with step (6), mix to stir promptly getting the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 1.92g/cm
3, pH value 13 ± 0.5,20 ℃≤20 minutes set time.Employing has gas or Airless spraying, once shaped.
Embodiment 15: preparation of nano silicate antioxidant coating (following weight percent)
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Potash water glass 100g mix with the high-alumina fly 0.1g of granularity 20 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 1.4, proportion 1.53g/cm
3Sodium silicate 100g mix with the zirconium dioxide 8g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 20% silicon-dioxide, contain lithium 3%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 20g powder of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 5 nanometers, contain 36% silicon-dioxide mixes with the high-alumina fly 0.5g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 40g, modification sodium silicate 30g, modification lithium silicate 10g and the comprehensive silicon colloidal sol 20g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 75g and granularity are the high-alumina fly 25g of 50 nanometers, mix stirring reaction 10～20 minutes down and 300 ℃ of dehydrations 8～12 hours, dry 2 hours, and pulverized 1000 orders and get the composite phosphate solidifying agent for 650 ℃ at 120 ℃.
(7) preparation Smecta filler: high-alumina fly 5g, Magnesium Silicate q-agent 5g, granularity 10um silicon carbide 85g, pure aluminium silicate 5g, four kinds of components mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation antioxidation coating material of Nano silicate: get the composite adhesive 26g of step (3) preparation, the composite phosphate solidifying agent 10g of step (4) preparation also mixes to stir with the Smecta filler 64g of step (5) preparation and got antioxidation coating material of Nano silicate in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.1g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Embodiment 16: preparation of nano silicate antioxidant coating (below be weight percentage).
(1) preparation modification potash water glass: getting potash water glass modulus (mol ratio) is 4.5, proportion 1.35g/cm
3Potash water glass 100g mix with the high-alumina fly 0.1g of granularity 20 nanometers, under 100 ℃, stirring reaction 50 hours the modification potash water glass.
(2) preparation modification sodium silicate: getting sodium silicate modulus (mol ratio) is 1.4, proportion 1.53g/cm
3Sodium silicate 100g mix with the zirconium dioxide 8g of granularity 30 nanometers, under 100 ℃, stirring reaction 50 hours the modification sodium silicate.
(3) preparation modification lithium silicate: get and contain 20% silicon-dioxide, contain lithium 3%, proportion 1.18g/cm
3Lithium silicate 100g mix with the chromic oxide 20g powder of granularity 50 nanometers, under 100 ℃, stirring reaction 50 hours the modification lithium silicate.
(4) preparation comprehensive silicon colloidal sol: the silicon sol 100g that to get the silicon-dioxide granularity be 5 nanometers, contain 36% silicon-dioxide mixes with the high-alumina fly 0.5g of granularity 20 nanometers, and under 100 ℃, stirring reaction 100 hours must comprehensive silicon colloidal sol.
(5) be equipped with composite adhesive: the modification potash water glass 40g, modification sodium silicate 30g, modification lithium silicate 10g and the comprehensive silicon colloidal sol 20g that prepare in step (1), (2), (3), (4) are mixed, under 50 ℃, stir and obtained the 100g composite adhesive in 100 minutes.
(6) preparation composite phosphate solidifying agent: phosphoric acid 53g and granularity are the high-alumina fly 25g of 50 nanometers, zinc oxide 15g, magnesium oxide 6g, plumbous oxide 1g, under 120 ℃, mix and stirred 10～20 minutes, 300 ℃ of dehydrations 8～12 hours, 650 ℃ of oven dry 2 hours, pulverize 1000 orders and get the composite phosphate solidifying agent.
(7) preparation Smecta filler: glass powder 35g, high-alumina fly 22g, kaolin 2g, Magnesium Silicate q-agent 2g, silica powder 13g, granularity is the silicon carbide 20g of 1um, zirconium powder 1g and pure aluminium silicate 5g mix stirring and got Smecta filler 100g in 20～60 minutes.
(8) preparation of nano silicate antioxidant coating: get the composite adhesive 20g of step (5) preparation, the composite curing agent 8g of step (6) preparation also mixes stirring with the Smecta filler 72g of step (7) preparation and promptly got the antioxidation coating material of Nano silicate finished product in 15 minutes.
Physicals: antioxidation coating material of Nano silicate density 2.2g/cm
3, pH value 10 ± 0.5,20 ℃≤20 minutes set time.
Annotate: the composite adhesive proportioning of embodiment 13,14,15,16 is constant, transfers composite phosphate solidifying agent, the proportioning of Smecta filler and the add-on of antioxidation coating material of Nano silicate each component.Stainless steel Ocr18Ni9 protection and the antioxidant property of embodiment 16 are good.
Sum up:, specific aim to solve according to all kinds of steel billets physics voltinism energy at high temperature.
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-1:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-2:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-3:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-4:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-5:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-6:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-7:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-8:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-9:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-10:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-11:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-12:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-13:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-14:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-15:
Loss on ignition comparing result before and after the antioxidation coating material of Nano silicate protection sample.As showing-16:
Claims (2)
1, a kind of antioxidation coating material of Nano silicate that is used for annealing billet in series is characterized in that by weight hundred than being that 20～30% composite adhesives, 8～12% composite phosphate solidifying agent, 58～72% Smecta fillers are formed;
Composite adhesive is 40～70% modification potash water glass and 0～30% modification sodium silicate by weight percent, 0～30% modification lithium silicate, 0～30% comprehensive silicon colloidal sol one or more components wherein mix to be formed, and the each component weight percent sum of described composite adhesive is 100%;
The composite phosphate solidifying agent is 53～75% phosphoric acid, 20～25% high-alumina flies and 0～15% zinc oxide by weight percent, 0～10% magnesium oxide, 0～10% plumbous oxide one or more components wherein mix to be formed, and the each component weight percent sum of described composite phosphate solidifying agent is 100%;
The Smecta filler is 5～22% high-alumina flies, 2～5% Magnesium Silicate q-agents, 5～10% pure aluminium silicate and 0～35% glass powder by weight percent, 0～12% kaolin, 0～13% silica powder, 0～85% silicon carbide, 0～6% zirconium powder one or more components wherein mix to be formed, and the each component weight percent sum of described Smecta filler is 100%.
2, the antioxidation coating material of Nano silicate that is used for annealing billet in series according to claim 1 is characterized in that:
(1) the potash water glass modulus in the modification potash water glass is 1.35～4.5, and wherein containing weight percent is 1～35% silicon-dioxide, 1～30% potassium oxide, and 40～70% water and granularity are that 20～50 nanometers, weight percent are 0.1～65% high-alumina fly;
(2) the sodium silicate modulus in the modification sodium silicate is 1.4～4.5, and wherein containing weight percent is 1～40% silicon-dioxide, 1～25% sodium oxide, and 40～70% water, granularity is that 30～50 nanometers, weight percent are 0.1～15% zirconium dioxide;
(3) containing weight percent in the modification lithium silicate is 20～30% silicon-dioxide, 2～3% lithiums, and 60～80% water and granularity are that 20～50 nanometers, weight percent are 0.1～20% chromic oxide;
(4) comprehensive silicon colloidal sol is that 5～50 nanometers, weight percent are 25～36% silicon-dioxide by granularity, granularity is that 20～50 nanometers, weight percent are 0.1～0.5% high-alumina fly, weight percent is that 60～99% water are formed, and the each component weight percent sum of described comprehensive silicon colloidal sol is 100%.
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| CN101544888B (en) * | 2009-04-29 | 2012-07-25 | 布柯玛蓄能器（天津）有限公司 | Antioxidant for hot rolling |
| CN102277474A (en) * | 2011-08-08 | 2011-12-14 | 河南三兴热能技术有限公司 | Heat treatment metal workpiece surface antioxidation coating |
| CN103468887B (en) * | 2013-08-02 | 2017-05-31 | 浙江吉利汽车研究院有限公司 | The heat treatment method after forging of steel alloy |
| CN106009790B (en) * | 2016-05-13 | 2018-03-20 | 沁阳市皇甫喷射防腐技术有限公司 | A kind of multi-functional high silica gold coating for being used for series building |
| CN109852110A (en) * | 2019-01-04 | 2019-06-07 | 武汉钢铁有限公司 | A kind of preparation method improving chromium-free environment-friendly coating orientation silicon steel surface quality |
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2007
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Effective date of registration: 20180731 Address after: 454550 Xibaizhuang Industrial Park, Qinyang City, Jiaozuo City, Henan Province Patentee after: Qinyang Huangpu jet Anticorrosion Technology Co. Ltd Address before: 454550 No. 143 Lane 87, Qinyuan District, Qinyang, Henan Patentee before: Huangfu Shijin |
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