CN108358446A - A kind of pyroceram preparation process - Google Patents
A kind of pyroceram preparation process Download PDFInfo
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- CN108358446A CN108358446A CN201810419197.0A CN201810419197A CN108358446A CN 108358446 A CN108358446 A CN 108358446A CN 201810419197 A CN201810419197 A CN 201810419197A CN 108358446 A CN108358446 A CN 108358446A
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- pyroceram
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- preparation process
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
- C03C3/111—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/004—Refining agents
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of pyroceram preparation processes, including first crush silica, aluminium oxide, silicon nitride, chrome green, add zirconium dioxide, boron oxide, silicon carbide whisker, quartz sand, ball-milling treatment;Then by treated, sample heats and keeps the temperature a period of time, continues that high temperature resistant additive, levelling agent, pigment, fire retardant and compound clarifier are added into sample, forms liquid glass and melts liquid;The obtained liquid that melts is poured into Preheat glass mold and forms glass baseplate again;Finally glass baseplate is placed in uniformly mixed fused salt and carries out ion exchange, glass baseplate taking-up carried out cooling up to pyroceram.Present invention process is simple, green non-pollution, suitable industrialization large-scale production at low cost, and the pyroceram high temperature resistance prepared is good, and service life is long, has a wide range of application.
Description
Technical field
The present invention relates to a kind of glass preparation technique, especially a kind of pyroceram preparation process.
Background technology
Glass is one kind can form contiguous network structure in melting, and viscosity gradually increases and hardens in cooling procedure
And non crystallized transparent silicic acid salt material.Simple glass main component is silica, can be widely applied to casting, ceramics
And the industry such as refractory material, smelting duriron, building, chemical industry, abrasive material.
Traditional process of glass formula is simple, although there is some pyrocerams to be used widely in life,
But can not meet the demand in special high-temperature operation field, and existing pyroceram service life is short, application field has
Limit.
Invention content
In order to overcome, the glass high temperature resistance prepared in pyroceram preparation process in the prior art is poor, service life
Short, the defects of application field is limited, the present invention provide a kind of pyroceram preparation process.
The technical solution adopted by the present invention to solve the technical problems is:A kind of pyroceram preparation process, including with
Lower step,
Step 1, first with pulverizer by 80~85 parts of silica, 32~38 parts of aluminium oxide, silicon nitride 18~20
Part, 12~18 parts of chrome green crush processing, obtain raw material powder;Then zirconium dioxide 2 is added into raw material powder
~5 parts, 5~8 parts of boron oxide, 2~5 parts of silicon carbide whisker, 1~3 part of quartz sand, recycle ball mill to mixed raw material into
Row ball-milling treatment is uniformly mixed;
The raw material that step 1 is uniformly mixed is heated to 1120~1180 DEG C simultaneously by step 2 with the heating speed of 10 DEG C/min
Keep the temperature 2.5~3.5h;Then 2.5~3.5 parts of high temperature resistant additive, 2~3 parts of levelling agent, 0~2.5 part of pigment, fire-retardant is added
5~7 parts of 0.5~5 part of agent and compound clarifier, are warming up to 1250~1425 DEG C with the heating speed of 10 DEG C/min and keep the temperature
3.5~4.5h, being formed, there is the liquid glass of setting viscosity to melt liquid;It homogenized, clarified again, being vented bubble processing so that glass
Melting liquid becomes flowable molten mass;
Step 3, molten mass made from step 2 is poured into be preheating in 400~450 DEG C of glass processing die carry out at
Type keeps the temperature 3.5~4.5h, finally with 10 DEG C/min's in the environment of glass sample after molding is then placed in 450~500 DEG C
Heating speed is warming up to 600~700 DEG C and keeps the temperature 2.5~3.5h, forms the glass baseplate of softening;
Calcium salt, sylvite and rubidium salt are placed in ball mill and carry out ball-milling treatment, is heated to melting after mixing by step 4
Melt state, obtains uniformly mixed fused salt;
Glass baseplate in step 3 is placed in the uniformly mixed fused salt of step 4 and is carried out at 450~480 DEG C by step 5
Ion exchange;
Step 6 takes out the glass baseplate in step 5 from fused salt, is cooled to 20~30 DEG C up to pyroceram.
A kind of above-mentioned pyroceram preparation process, silica, aluminium oxide, silicon nitride in the step 1, three
Aoxidize two chromium powders it is broken after granularity be 500~1200 mesh.
A kind of above-mentioned pyroceram preparation process, ball mill carries out ball milling to mixed raw material in the step 1
Processing, ball-milling treatment condition are 30~50min of wet-milling, and the rotating speed of ball mill is 280~320r/min.
A kind of above-mentioned pyroceram preparation process, high temperature resistant additive is phenolic resin, silicic acid in the step 2
The mixture of sodium and silane coupling agent.
A kind of above-mentioned pyroceram preparation process, the levelling agent in the step 2 is butyl cellulose, modified poly-
The mixture of ether and dimethyl silicone polymer;The compound clarifier is sodium nitrate, zinc borate, potassium fluorozirconate and strontium carbonate
Mixture.
A kind of above-mentioned pyroceram preparation process, the time swap in the step 5 intermediate ion replacement process are 8
~12h.
A kind of above-mentioned pyroceram preparation process, calcium salt, sylvite and rubidium salt in the step 4 are respectively carbon
The mass ratio of sour calcium, potassium chloride and rubidium carbonate, the calcium salt, sylvite and rubidium salt is 1:3:2.
The present invention has the following advantages and high-lighting effect compared with prior art:
The invention has the advantages that pyroceram preparation process of the present invention is using silica, aluminium oxide, silicon nitride
And chrome green is that raw material effectively eliminates traditional pyroceram by the way that hard material and auxiliary material is added
The glass high temperature resistance that is prepared in preparation process is poor, service life is short, the limited defect of application field.High temperature resistant glass of the present invention
Simple for process, green non-pollution, suitable industrialization large-scale production at low cost in glass preparation process, and the pyroceram prepared
High temperature resistance is good, and service life is long, has a wide range of application.
Specific implementation mode
In order to illustrate more clearly of concrete structure of the invention, the content of operation principle, with reference to embodiment to this hair
It is bright to be described further, but following embodiment is merely to illustrate the present invention, is not limited to the scope of the present invention.For this
For the those of ordinary skill in field, without creative efforts, other embodiments are obtained according to embodiment,
Belong to protection scope of the present invention.
【Embodiment 1】
A kind of pyroceram preparation process, includes the following steps,
Step 1, first with pulverizer by 80 parts of silica, 32 parts of aluminium oxide, 18 parts of silicon nitride, chrome green
12 parts crush processing, obtain raw material powder;Then 2 parts of zirconium dioxide, 5 parts of boron oxide, carbonization are added into raw material powder
Silicon wafer palpus 2 parts, 1 part of quartz sand, recycle ball mill to carry out ball-milling treatment to mixed raw material, are uniformly mixed;
The raw material that step 1 is uniformly mixed is heated to 1120 DEG C with the heating speed of 10 DEG C/min and kept the temperature by step 2
3.5h;Then add 2.5 parts of high temperature resistant additive, 2 parts of levelling agent, 5 parts of 0.5 part of fire retardant and compound clarifier, with 10
DEG C/heating speed of min is warming up to 1250 DEG C and keeps the temperature 4.5h, being formed, there is the liquid glass of setting viscosity to melt liquid;It carries out again
It homogenizes, clarify, being vented bubble processing so that glass, which melts liquid, becomes flowable molten mass;
Step 3, molten mass made from step 2 is poured into be preheating in 400 DEG C of glass processing die is molded, so
Glass after molding is placed in the environment of 450 DEG C afterwards and keeps the temperature 3.5h, is finally warming up to 600 DEG C with the heating speed of 10 DEG C/min
And 2.5h is kept the temperature, form the glass baseplate of softening;
Calcium salt, sylvite and rubidium salt are placed in ball mill and carry out ball-milling treatment, is heated to melting after mixing by step 4
Melt state, obtains uniformly mixed fused salt;
Glass baseplate in step 3 is placed in the uniformly mixed fused salt of step 4 and carries out ion at 450 DEG C by step 5
It exchanges;
Step 6 takes out the glass baseplate in step 5 from fused salt, is cooled to 20 DEG C up to pyroceram.
Granularity after silica, aluminium oxide, silicon nitride, chrome green in the step 1 crush is 800 mesh;
Ball mill carries out ball-milling treatment to mixed raw material in the step 1, and ball-milling treatment condition is wet-milling 30min, ball mill
Rotating speed is 320r/min;High temperature resistant additive is the mixture of phenolic resin, sodium metasilicate and silane coupling agent in the step 2;
Levelling agent in the step 2 is the mixture of butyl cellulose, modified polyether and dimethyl silicone polymer;It is described compound
Fining agent is the mixture of sodium nitrate, zinc borate, potassium fluorozirconate and strontium carbonate;In the step 5 intermediate ion replacement process
Time swap is 8h;Calcium salt, sylvite and rubidium salt in the step 4 are respectively calcium carbonate, potassium chloride and rubidium carbonate, institute
The mass ratio of calcium salt, sylvite and the rubidium salt stated is 1:3:2.
【Embodiment 2】
A kind of pyroceram preparation process, includes the following steps,
Step 1, first with pulverizer by 85 parts of silica, 38 parts of aluminium oxide, 20 parts of silicon nitride, chrome green
18 parts crush processing, obtain raw material powder;Then 5 parts of zirconium dioxide, 8 parts of boron oxide, carbonization are added into raw material powder
Silicon wafer palpus 5 parts, 3 parts of quartz sand, recycle ball mill to carry out ball-milling treatment to mixed raw material, are uniformly mixed;
The raw material that step 1 is uniformly mixed is heated to 1180 DEG C with the heating speed of 10 DEG C/min and kept the temperature by step 2
2.5h;Then 3.5 parts of high temperature resistant additive, 3 parts of levelling agent, 2.5 parts of pigment, 5 parts of fire retardant and compound clarifier 7 are added
Part, it is warming up to 1425 DEG C with the heating speed of 10 DEG C/min and keeps the temperature 3.5h, being formed, there is the liquid glass of setting viscosity to melt liquid;
It homogenized, clarified again, being vented bubble processing so that glass, which melts liquid, becomes flowable molten mass;
Step 3, molten mass made from step 2 is poured into be preheating in 450 DEG C of glass processing die is molded, so
Glass sample after molding is placed in the environment of 500 DEG C afterwards and keeps the temperature 4.5h, is finally warming up to the heating speed of 10 DEG C/min
700 DEG C and 3.5h is kept the temperature, forms the glass baseplate of softening;
Calcium salt, sylvite and rubidium salt are placed in ball mill and carry out ball-milling treatment, is heated to melting after mixing by step 4
Melt state, obtains uniformly mixed fused salt;
Glass baseplate in step 3 is placed in the uniformly mixed fused salt of step 4 and carries out ion at 480 DEG C by step 5
It exchanges;
Step 6 takes out the glass baseplate in step 5 from fused salt, is cooled to 30 DEG C up to pyroceram.
Granularity after silica, aluminium oxide, silicon nitride, chrome green in the step 1 crush is 1200
Mesh;Ball mill carries out ball-milling treatment to mixed raw material in the step 1, and ball-milling treatment condition is wet-milling 50min, ball milling
The rotating speed of machine is 280r/min;High temperature resistant additive is the mixed of phenolic resin, sodium metasilicate and silane coupling agent in the step 2
Close object;Levelling agent in the step 2 is the mixture of butyl cellulose, modified polyether and dimethyl silicone polymer;It is described
Compound clarifier is the mixture of sodium nitrate, zinc borate, potassium fluorozirconate and strontium carbonate;The step 5 intermediate ion replacement process
In time swap be 12h;Calcium salt, sylvite and rubidium salt in the step 4 are respectively calcium carbonate, potassium chloride and carbonic acid
The mass ratio of rubidium, the calcium salt, sylvite and rubidium salt is 1:3:2.
【Embodiment 3】
A kind of pyroceram preparation process, includes the following steps,
Step 1, first with pulverizer by 82 parts of silica, 35 parts of aluminium oxide, 19 parts of silicon nitride, chrome green
15 parts crush processing, obtain raw material powder;Then 3 parts of zirconium dioxide, 6 parts of boron oxide, carbonization are added into raw material powder
Silicon wafer palpus 4 parts, 2 parts of quartz sand, recycle ball mill to carry out ball-milling treatment to mixed raw material, are uniformly mixed;
The raw material that step 1 is uniformly mixed is heated to 1150 DEG C with the heating speed of 10 DEG C/min and kept the temperature by step 2
3h;Then 6 parts of 3 parts of high temperature resistant additive, 2.5 parts of levelling agent, 1 part of pigment, 2 parts of fire retardant and compound clarifier are added,
It is warming up to 1350 DEG C with the heating speed of 10 DEG C/min and keeps the temperature 4h, being formed, there is the liquid glass of setting viscosity to melt liquid;Again into
Row is homogenized, is clarified, being vented bubble processing so that glass, which melts liquid, becomes flowable molten mass;
Step 3, molten mass made from step 2 is poured into be preheating in 420 DEG C of glass processing die is molded, so
Glass sample after molding is placed in the environment of 480 DEG C afterwards and keeps the temperature 4h, is finally warming up to 650 with the heating speed of 10 DEG C/min
DEG C and keep the temperature 3h, form the glass baseplate of softening;
Calcium salt, sylvite and rubidium salt are placed in ball mill and carry out ball-milling treatment, is heated to melting after mixing by step 4
Melt state, obtains uniformly mixed fused salt;
Glass baseplate in step 3 is placed in the uniformly mixed fused salt of step 4 and carries out ion at 470 DEG C by step 5
It exchanges;
Step 6 takes out the glass baseplate in step 5 from fused salt, is cooled to 25 DEG C up to pyroceram.
Granularity after silica, aluminium oxide, silicon nitride, chrome green in the step 1 crush is 1100
Mesh;Ball mill carries out ball-milling treatment to mixed sample in the step 1, and ball-milling treatment condition is wet-milling 40min, ball milling
The rotating speed of machine is 300r/min;High temperature resistant additive is the mixed of phenolic resin, sodium metasilicate and silane coupling agent in the step 2
Close object;Levelling agent in the step 2 is the mixture of butyl cellulose, modified polyether and dimethyl silicone polymer;It is described
Compound clarifier is the mixture of sodium nitrate, zinc borate, potassium fluorozirconate and strontium carbonate;The step 5 intermediate ion replacement process
In time swap be 10h;Calcium salt, sylvite and rubidium salt in the step 4 are respectively calcium carbonate, potassium chloride and carbonic acid
The mass ratio of rubidium, the calcium salt, sylvite and rubidium salt is 1:3:2.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (7)
1. a kind of pyroceram preparation process, it is characterised in that:Include the following steps,
Step 1, first with pulverizer by 80~85 parts of silica, 32~38 parts of aluminium oxide, 18~20 parts of silicon nitride, three
It aoxidizes 12~18 parts of two chromium and crushes processing, obtain raw material powder;Then into raw material powder be added 2~5 parts of zirconium dioxide,
5~8 parts of boron oxide, 2~5 parts of silicon carbide whisker, 1~3 part of quartz sand recycle ball mill to carry out ball milling to mixed raw material
Processing is uniformly mixed;
The raw material that step 1 is uniformly mixed is heated to 1120~1180 DEG C with the heating speed of 10 DEG C/min and kept the temperature by step 2
2.5~3.5h;Then 2.5~3.5 parts of high temperature resistant additive, 2~3 parts of levelling agent, 0~2.5 part of pigment, fire retardant are added
0.5~5 part and 5~7 parts of compound clarifier are warming up to 1250~1425 DEG C with the heating speed of 10 DEG C/min and keep the temperature 3.5
~4.5h, being formed, there is the liquid glass of setting viscosity to melt liquid;It homogenized, clarified again, being vented bubble processing so that glass melts liquid
As flowable molten mass;
Step 3, molten mass made from step 2 is poured into be preheating in 400~450 DEG C of glass processing die is molded,
Then 3.5~4.5h is kept the temperature in the environment of glass after molding being placed in 450~500 DEG C, finally with the heating of 10 DEG C/min speed
Degree is warming up to 600~700 DEG C and keeps the temperature 2.5~3.5h, forms the glass baseplate of softening;
Calcium salt, sylvite and rubidium salt are placed in ball mill and carry out ball-milling treatment, is heated to molten after mixing by step 4
State obtains uniformly mixed fused salt;
Glass baseplate in step 3 is placed in the uniformly mixed fused salt of step 4 and carries out ion at 450~480 DEG C by step 5
It exchanges;
Step 6 takes out the glass baseplate in step 5 from fused salt, is cooled to 20~30 DEG C up to pyroceram.
2. a kind of pyroceram preparation process according to claim 1, which is characterized in that the dioxy in the step 1
Granularity after SiClx, aluminium oxide, silicon nitride, chrome green crush is 500~1200 mesh.
3. a kind of pyroceram preparation process according to claim 1, which is characterized in that ball mill in the step 1
Ball-milling treatment carried out to mixed raw material, ball-milling treatment condition is 30~50min of wet-milling, the rotating speed of ball mill is 280~
320r/min。
4. a kind of pyroceram preparation process according to claim 1, which is characterized in that high temperature resistant in the step 2
Additive is the mixture of phenolic resin, sodium metasilicate and silane coupling agent.
5. a kind of pyroceram preparation process according to claim 1, which is characterized in that the levelling in the step 2
Agent is the mixture of butyl cellulose, modified polyether and dimethyl silicone polymer;The compound clarifier is sodium nitrate, boric acid
The mixture of zinc, potassium fluorozirconate and strontium carbonate.
6. a kind of pyroceram preparation process according to claim 1, which is characterized in that the step 5 intermediate ion is set
Time swap during changing is 8~12h.
7. a kind of pyroceram preparation process according to claim 1, which is characterized in that the calcium in the step 4
Salt, sylvite and rubidium salt are respectively calcium carbonate, potassium chloride and rubidium carbonate, the calcium salt, sylvite and rubidium salt mass ratio
It is 1:3:2.
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Cited By (3)
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CN109970339A (en) * | 2019-04-09 | 2019-07-05 | 张家港市国华安全玻璃有限公司 | A kind of method for glass preparation that safety coefficient is high |
CN110156328A (en) * | 2019-04-28 | 2019-08-23 | 江苏华鸥玻璃有限公司 | A kind of novel fire resistant glass tube and its processing technology |
CN114590994A (en) * | 2020-12-02 | 2022-06-07 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
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CN109970339A (en) * | 2019-04-09 | 2019-07-05 | 张家港市国华安全玻璃有限公司 | A kind of method for glass preparation that safety coefficient is high |
CN110156328A (en) * | 2019-04-28 | 2019-08-23 | 江苏华鸥玻璃有限公司 | A kind of novel fire resistant glass tube and its processing technology |
CN114590994A (en) * | 2020-12-02 | 2022-06-07 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
CN114590994B (en) * | 2020-12-02 | 2023-09-05 | 苏州市灵通玻璃制品有限公司 | Production process of arc-shaped glass |
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Application publication date: 20180803 |