CN103693850B - The technology of preparing of nano microcrystalline enamel - Google Patents
The technology of preparing of nano microcrystalline enamel Download PDFInfo
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- CN103693850B CN103693850B CN201310654081.2A CN201310654081A CN103693850B CN 103693850 B CN103693850 B CN 103693850B CN 201310654081 A CN201310654081 A CN 201310654081A CN 103693850 B CN103693850 B CN 103693850B
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Abstract
The invention discloses a kind of technology of preparing of nano microcrystalline enamel, comprise the steps: 1) obtain homogeneous enamel frit; 2) enamel pre-grinding dry powder is obtained; 3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.The technology of preparing of nano microcrystalline enamel of the present invention, it can generate the technology of nano microcrystalline at enamel layer situ, thus effectively improves the acid-alkali-corrosive-resisting of enamel and the ability of heat resistanceheat resistant water erosion, can be used as the liner of pressure vessels for the chemical industry.
Description
Technical field
The present invention relates to the technology of preparing of nano microcrystalline enamel.
Background technology
Enamel is a kind of special inorganic non-metallic thick film (coating) material of evenly coating on metallic matrix; require that it and metallic matrix have good adherence; and enamel coating itself also must be fine and close, to protect metallic matrix from acid and alkali corrosion and oxidation corrosion etc. well.Vitreous enamel is from crystallography angle mainly amorphous glass substance, according to glass and ceramic performance characteristics, if the crystallised component in vitreous enamel can be increased, and can the effectively grain-size of crystallization control body and the homogeneity that distributes in enamel layer, undoubtedly the performance such as acid and alkali-resistance and heat resistanceheat resistant water erosion improving enamel is played an important role.
Summary of the invention
The object of the present invention is to provide a kind of technology of preparing of nano microcrystalline enamel, it can generate the technology of nano microcrystalline at enamel layer situ, thus effectively improves the acid-alkali-corrosive-resisting of enamel and the ability of heat resistanceheat resistant water erosion, can be used as the liner of pressure vessels for the chemical industry.
For achieving the above object, technical scheme of the present invention designs a kind of technology of preparing of nano microcrystalline enamel, comprises the steps:
1) after 5-6 mass parts soda ash, 45 mass parts quartz sands, 2-3 mass parts Sodium Silicofluoride, 6 mass parts zirconium silicates, 15 mass parts boraxs, 8 mass parts nickel oxide, 5 mass parts aluminum fluorides, 40 mass parts Feldspar Powders, 13 mass parts titanium dioxides, 13 mass parts tricalcium phosphates being mixed, send in High Temperature Furnaces Heating Apparatus, 1600 DEG C of meltings, obtain the uniform enamel melt of composition, after taking out, cooling fast, obtains homogeneous enamel frit;
2) by 12 mass parts kaolin, 85 mass parts enamel frits, 3 mass parts wilkinite mixing, dry ball milling 6 hours in ball mill, obtains meeting fineness requirement 70 object enamel pre-grinding dry powder;
3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.
Advantage of the present invention and beneficial effect are: the technology of preparing providing a kind of nano microcrystalline enamel, it can generate the technology of nano microcrystalline at enamel layer situ, thus effectively improve the acid-alkali-corrosive-resisting of enamel and the ability of heat resistanceheat resistant water erosion, can be used as the liner of pressure vessels for the chemical industry.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Embodiment 1
A technology of preparing for nano microcrystalline enamel, comprises the steps:
1) after 6 mass parts soda ash, 45 mass parts quartz sands, 3 mass parts Sodium Silicofluorides, 6 mass parts zirconium silicates, 15 mass parts boraxs, 8 mass parts nickel oxide, 5 mass parts aluminum fluorides, 40 mass parts Feldspar Powders, 13 mass parts titanium dioxides, 13 mass parts tricalcium phosphates being mixed, send in High Temperature Furnaces Heating Apparatus, 1600 DEG C of meltings, obtain the uniform enamel melt of composition, after taking out, cooling fast, obtains homogeneous enamel frit;
2) by 12 mass parts kaolin, 85 mass parts enamel frits, 3 mass parts wilkinite mixing, dry ball milling 6 hours in ball mill, obtains meeting fineness requirement 70 object enamel pre-grinding dry powder;
3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.
Embodiment 2
A technology of preparing for nano microcrystalline enamel, comprises the steps:
1) after 5 mass parts soda ash, 45 mass parts quartz sands, 2 mass parts Sodium Silicofluorides, 6 mass parts zirconium silicates, 15 mass parts boraxs, 8 mass parts nickel oxide, 5 mass parts aluminum fluorides, 40 mass parts Feldspar Powders, 13 mass parts titanium dioxides, 13 mass parts tricalcium phosphates being mixed, send in High Temperature Furnaces Heating Apparatus, 1600 DEG C of meltings, obtain the uniform enamel melt of composition, after taking out, cooling fast, obtains homogeneous enamel frit;
2) by 12 mass parts kaolin, 85 mass parts enamel frits, 3 mass parts wilkinite mixing, dry ball milling 6 hours in ball mill, obtains meeting fineness requirement 70 object enamel pre-grinding dry powder;
3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.
Embodiment 3
A technology of preparing for nano microcrystalline enamel, comprises the steps:
1) after 5.6 mass parts soda ash, 45 mass parts quartz sands, 2.3 mass parts Sodium Silicofluorides, 6 mass parts zirconium silicates, 15 mass parts boraxs, 8 mass parts nickel oxide, 5 mass parts aluminum fluorides, 40 mass parts Feldspar Powders, 13 mass parts titanium dioxides, 13 mass parts tricalcium phosphates being mixed, send in High Temperature Furnaces Heating Apparatus, 1600 DEG C of meltings, obtain the uniform enamel melt of composition, after taking out, cooling fast, obtains homogeneous enamel frit;
2) by 12 mass parts kaolin, 85 mass parts enamel frits, 3 mass parts wilkinite mixing, dry ball milling 6 hours in ball mill, obtains meeting fineness requirement 70 object enamel pre-grinding dry powder;
3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the preparation method of nano microcrystalline enamel, is characterized in that, comprises the steps:
1) after 5-6 mass parts soda ash, 45 mass parts quartz sands, 2-3 mass parts Sodium Silicofluoride, 6 mass parts zirconium silicates, 15 mass parts boraxs, 8 mass parts nickel oxide, 5 mass parts aluminum fluorides, 40 mass parts Feldspar Powders, 13 mass parts titanium dioxides, 13 mass parts tricalcium phosphates being mixed, send in High Temperature Furnaces Heating Apparatus, 1600 DEG C of meltings, obtain the uniform enamel melt of composition, after taking out, cooling fast, obtains homogeneous enamel frit;
2) by 12 mass parts kaolin, 85 mass parts enamel frits, 3 mass parts wilkinite mixing, dry ball milling 6 hours in ball mill, obtains meeting fineness requirement 70 object enamel pre-grinding dry powder;
3) 50 mass parts enamel pre-grinding dry powder are got, add 23 mass parts water, be modulated into Enamel Slip, with dip-coating method by treating that the even coating thickness of application of slip surface of workpiece is the Enamel Slip of 0.25mm, after oven dry, putting into 900 DEG C of heat treatment furnaces, being incubated 3 minutes, after the abundant melting of enamel, furnace temperature is down to 720 DEG C, is incubated 2 minutes, after taking out cooling, namely obtain the nano microcrystalline enamel of average grain size 45nm.
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