CN106316400A - Process for producing ceramic teapot - Google Patents
Process for producing ceramic teapot Download PDFInfo
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- CN106316400A CN106316400A CN201610688552.5A CN201610688552A CN106316400A CN 106316400 A CN106316400 A CN 106316400A CN 201610688552 A CN201610688552 A CN 201610688552A CN 106316400 A CN106316400 A CN 106316400A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/62635—Mixing details
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63472—Condensation polymers of aldehydes or ketones
- C04B35/63476—Phenol-formaldehyde condensation polymers
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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Abstract
The invention provides a process for producing a ceramic teapot. The process comprises the following steps: (1) performing ball-milling and mixing; (2) forming a green body; (3) carbonizing at a middle temperature; (4) infiltrating Si at a high temperature; and (5) performing after-treatment. According to the process, phenolic resin is adopted as an adhesive, the strength of the obtained green body completely meets the machining strength requirement, and the cured phenolic resin forms a cross-linked meshed structure with excellent mechanical strength. In the process, high temperature Si infiltration is performed in the step (4), and a reactive sintering SiC material is prepared by the main steps: infiltrating into a SiC green body by virtue of a liquid phase Si, and enabling a reaction with C in the green body to produce secondary SiC for filling material gaps, thereby obtaining a dense material. The teapot made by the process is high in strength and hardness, corrosion-resistant and high-temperature-resistant.
Description
Technical field
The present invention relates to cup and make field, be a kind of ceramic teapot production technology in particular.
Background technology
SiC is the compound that a kind of typical Si with C covalent bond is combined, few in distributed in nature, industrial application
It it is all the material of synthetic.As far back as 1891, Acheson, in diamond synthesis is tested, added Si as catalyst in C,
Generating SiC, being erroneously interpreted as diamond, so being named corundum.SiC ceramic is the new ceramics that recent decades just grows up
Material, but due to its particularly excellent high intensity, high rigidity, the performance such as corrosion-resistant, high temperature resistant, being developed on a large scale should
With, it is widely used in the fields such as petrochemical industry, metallurgy, machinery, Aero-Space, microelectronics, automobile, iron and steel, and has day by day shown
Go out the advantage that other special cermacis is incomparable.The process manufacturing teapot currently with this material is relatively fewer and the completeest
Kind.
Summary of the invention
The present invention provides a kind of ceramic teapot production technology, and for realizing the purpose of the present invention, technical scheme is such as
Under:
A kind of ceramic teapot production technology, the steps include:
(1) ball mill mixing: the method using material by wet type mixing, is placed in planetary type ball-milling by raw material, solvent, bonding agent and white carbon black
Machine takes out after 5-10h, drying, broken after to cross 100 mesh sieves standby；
(2) forming of green body: weigh above-mentioned batch mixing and load in mould, apply briquetting pressure 70-180MPa set, protect
Pressure 1-2min, is placed in pressed compact afterwards in 80-100 DEG C of baking oven and is dried, and solidifies 2-3h at 200-250 DEG C；
(3) middle temperature carbonization: the biscuit after solidification is placed on carbonization in middle temperature tube furnace, is passed through argon, regulate carburizing temperature
At 800-900 DEG C, it is incubated 2-3h；
(4) high temperature oozes Si: first entered in graphite crucible by Si particle packing, then is placed in by biscuit of ceramics above Si granule, even
It is placed in graphitic carbon pipe furnace with graphite crucible and carries out melting infiltration sintering；
(5) subsequent treatment: the blank after melting infiltration sintering is polished with diamond disk.
Preferably, in described step (1) raw material be SiC powder, solvent be dehydrated alcohol, bonding agent be phenolic resin, its
The addition mass ratio of middle raw material, solvent, bonding agent and white carbon black is 5:3:1:1.
Preferably, in described step (1) in ball mill, ball-milling medium selects the agate ball of a diameter of 5-8mm, and ball grinder is adopted
Use Al2O3Pottery.
Preferably, in described step (4), sintering condition is: vacuum 0.5-1Pa, maximum temperature 1500-1600 DEG C, sintering
Time is 0.5-2h.
Preferably, in described step (5), during polishing, its rotary speed controls at 1000-2000r/min.
Preferably, after step (5) polishing, products formed need to be carried out ultrasonic cleaning, be dried afterwards, pack.
Beneficial effect: the present invention provides a kind of ceramic teapot production technology, and its step includes: (1) ball mill mixing, (2) element
Base molding, the carbonization of (3) middle temperature, (4) high temperature ooze Si, (5) subsequent treatment；In this technique, bonding agent selects phenolic resin, it is thus achieved that element
The intensity of base fully meets mach requirement of strength, and after overcuring, phenolic resin can form cross-linked structure, has excellent
Elegant mechanical strength.In this technique, step (4) has carried out high temperature and has oozed Si, prepares reaction-sintering SIC material and mainly relies on liquid phase
Si is molten in SiC biscuit to be oozed, and with C in biscuit react generation secondary SiC packing material gap, obtain densified materials.
The teapot not only intensity, the hardness that prepare by this technique are high, and corrosion-resistant, high temperature resistant.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with
Detailed description of the invention, is expanded on further the present invention.
Embodiment 1:
A kind of ceramic teapot production technology, the steps include:
(1) ball mill mixing: the method using material by wet type mixing, is placed in planetary type ball-milling by raw material, solvent, bonding agent and white carbon black
Machine takes out after 5h, drying, broken after to cross 100 mesh sieves standby；
(2) forming of green body: weigh above-mentioned batch mixing and load in mould, apply briquetting pressure 70MPa set, pressurize
1min, is placed in pressed compact afterwards in 80 DEG C of baking ovens and is dried, and solidifies 2h at 200 DEG C；
(3) middle temperature carbonization: the biscuit after solidification is placed on carbonization in middle temperature tube furnace, is passed through argon, regulate carburizing temperature
At 800 DEG C, it is incubated 2h；
(4) high temperature oozes Si: first entered in graphite crucible by Si particle packing, then is placed in by biscuit of ceramics above Si granule, even
It is placed in graphitic carbon pipe furnace with graphite crucible and carries out melting infiltration sintering；
(5) subsequent treatment: the blank after melting infiltration sintering is polished with diamond disk.
Wherein, in described step (1) raw material be SiC powder, solvent be dehydrated alcohol, bonding agent be phenolic resin, wherein
The addition mass ratio of raw material, solvent, bonding agent and white carbon black is 5:3:1:1, and in ball mill, ball-milling medium selects a diameter of 5mm's
Agate ball, ball grinder uses Al2O3Pottery, in described step (4), sintering condition is: vacuum 0.5Pa, maximum temperature 1500 DEG C,
Sintering time is 0.5h, and in described step (5), during polishing, its rotary speed controls at 1000r/min, after step (5) polishing,
Products formed need to be carried out ultrasonic cleaning, be dried afterwards, pack.
Embodiment 2:
A kind of ceramic teapot production technology, the steps include:
(1) ball mill mixing: the method using material by wet type mixing, is placed in planetary type ball-milling by raw material, solvent, bonding agent and white carbon black
Machine takes out after 8h, drying, broken after to cross 100 mesh sieves standby；
(2) forming of green body: weigh above-mentioned batch mixing and load in mould, apply briquetting pressure 100MPa set, pressurize
1.5min, is placed in pressed compact afterwards in 90 DEG C of baking ovens and is dried, and solidifies 2.5h at 220 DEG C；
(3) middle temperature carbonization: the biscuit after solidification is placed on carbonization in middle temperature tube furnace, is passed through argon, regulate carburizing temperature
At 850 DEG C, it is incubated 2.5h；
(4) high temperature oozes Si: first entered in graphite crucible by Si particle packing, then is placed in by biscuit of ceramics above Si granule, even
It is placed in graphitic carbon pipe furnace with graphite crucible and carries out melting infiltration sintering；
(5) subsequent treatment: the blank after melting infiltration sintering is polished with diamond disk.
Wherein, in described step (1) raw material be SiC powder, solvent be dehydrated alcohol, bonding agent be phenolic resin, wherein
The addition mass ratio of raw material, solvent, bonding agent and white carbon black is 5:3:1:1, and in ball mill, ball-milling medium selects a diameter of 7mm's
Agate ball, ball grinder uses Al2O3Pottery, in described step (4), sintering condition is: vacuum 0.7Pa, maximum temperature 1550 DEG C,
Sintering time is 1h, and in described step (5), during polishing, its rotary speed controls at 1500r/min, after step (5) polishing, needs
Products formed is carried out ultrasonic cleaning, is dried afterwards, packs.
Embodiment 3:
A kind of ceramic teapot production technology, the steps include:
(1) ball mill mixing: the method using material by wet type mixing, is placed in planetary type ball-milling by raw material, solvent, bonding agent and white carbon black
Machine takes out after 10h, drying, broken after to cross 100 mesh sieves standby；
(2) forming of green body: weigh above-mentioned batch mixing and load in mould, apply briquetting pressure 180MPa set, pressurize
2min, is placed in pressed compact afterwards in 100 DEG C of baking ovens and is dried, and solidifies 3h at 250 DEG C；
(3) middle temperature carbonization: the biscuit after solidification is placed on carbonization in middle temperature tube furnace, is passed through argon, regulate carburizing temperature
At 900 DEG C, it is incubated 3h；
(4) high temperature oozes Si: first entered in graphite crucible by Si particle packing, then is placed in by biscuit of ceramics above Si granule, even
It is placed in graphitic carbon pipe furnace with graphite crucible and carries out melting infiltration sintering；
(5) subsequent treatment: the blank after melting infiltration sintering is polished with diamond disk.
Wherein, in described step (1) raw material be SiC powder, solvent be dehydrated alcohol, bonding agent be phenolic resin, wherein
The addition mass ratio of raw material, solvent, bonding agent and white carbon black is 5:3:1:1, and in ball mill, ball-milling medium selects a diameter of 8mm's
Agate ball, ball grinder uses Al2O3Pottery, in described step (4), sintering condition is: vacuum 1Pa, maximum temperature 1600 DEG C, burns
The knot time is 2h, and in described step (5), during polishing, its rotary speed controls at 2000r/min, and after step (5) polishing, it is right to need
Products formed carries out ultrasonic cleaning, is dried afterwards, packs.
| Biscuit density | Ceramics strength | Rockwell hardness | |
| Embodiment 1 | 1.706g/cm3 | 12MPa | 35HR |
| Embodiment 2 | 1.905g/cm3 | 18MPa | 48HR |
| Embodiment 3 | 1.746g/cm3 | 13MPa | 39HR |
| Existing technical parameter | 1.521g/cm3 | 6MPa | 31HR |
By above table data it can be seen that the most existing technical parameter of teapot technical parameter that the present invention produces is wanted
Good, when using embodiment 2 parameter, intensity and hardness that the teapot density produced is high, ceramic are the highest, now most beneficial for
The production of teapot.
The present invention provides a kind of ceramic teapot production technology, and its step includes: (1) ball mill mixing, (2) forming of green body, (3)
Si, (5) subsequent treatment are oozed in middle temperature carbonization, (4) high temperature；In this technique, bonding agent selects phenolic resin, it is thus achieved that the intensity of biscuit is complete
The mach requirement of strength of full up foot, after overcuring, phenolic resin can form cross-linked structure, has outstanding machinery strong
Degree.In this technique, step (4) has carried out high temperature and has oozed Si, prepares reaction-sintering SIC material and mainly relies on liquid phase Si to SiC biscuit
In molten ooze, and react generation secondary SiC packing material gap with C in biscuit, obtain densified materials.Prepare by this technique
Teapot not only intensity, hardness high, and corrosion-resistant, high temperature resistant.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (6)
1. a ceramic teapot production technology, it is characterised in that the steps include:
(1) ball mill mixing: the method using material by wet type mixing, is placed in raw material, solvent, bonding agent and white carbon black in planetary ball mill
Take out after 5-10h, drying, broken after to cross 100 mesh sieves standby；
(2) forming of green body: weigh above-mentioned batch mixing and load in mould, apply briquetting pressure 70-180MPa set, pressurize 1-
2min, is placed in pressed compact afterwards in 80-100 DEG C of baking oven and is dried, and solidifies 2-3h at 200-250 DEG C；
(3) middle temperature carbonization: the biscuit after solidification is placed on carbonization in middle temperature tube furnace, is passed through argon, and regulation carburizing temperature exists
800-900 DEG C, it is incubated 2-3h；
(4) high temperature oozes Si: first entered in graphite crucible by Si particle packing, then is placed in by biscuit of ceramics above Si granule, together with stone
Ink crucible is placed in graphitic carbon pipe furnace and carries out melting infiltration sintering；
(5) subsequent treatment: the blank after melting infiltration sintering is polished with diamond disk.
Ceramic teapot production technology the most according to claim 1, it is characterised in that in described step (1), raw material is SiC powder
End, solvent be dehydrated alcohol, bonding agent be phenolic resin, wherein the addition mass ratio of raw material, solvent, bonding agent and white carbon black is 5:
3:1:1。
Ceramic teapot production technology the most according to claim 1, it is characterised in that in described step (1) in ball mill, ball
Grinding media selects the agate ball of a diameter of 5-8mm, and ball grinder uses Al2O3Pottery.
Ceramic teapot production technology the most according to claim 1, it is characterised in that in described step (4), sintering condition is:
Vacuum 0.5-1Pa, maximum temperature 1500-1600 DEG C, sintering time is 0.5-2h.
Ceramic teapot production technology the most according to claim 1, it is characterised in that in described step (5), its turn during polishing
Dish speed controlling is at 1000-2000r/min.
Ceramic teapot production technology the most according to claim 1, it is characterised in that after step (5) polishing, need to be to molding
Product carry out ultrasonic cleaning, are dried afterwards, pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688552.5A CN106316400A (en) | 2016-08-18 | 2016-08-18 | Process for producing ceramic teapot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688552.5A CN106316400A (en) | 2016-08-18 | 2016-08-18 | Process for producing ceramic teapot |
Publications (1)
| Publication Number | Publication Date |
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| CN106316400A true CN106316400A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610688552.5A Pending CN106316400A (en) | 2016-08-18 | 2016-08-18 | Process for producing ceramic teapot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484143A (en) * | 2018-05-03 | 2018-09-04 | 福建省德化县龙民陶瓷研究所（普通合伙） | A kind of ceramic crosses tea strainer and its production method |
| CN111839137A (en) * | 2020-07-14 | 2020-10-30 | 好合苑(东莞)文化创意有限公司 | Antique tea set and manufacturing process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293772A (en) * | 2008-05-30 | 2008-10-29 | 上海工程技术大学 | Preparation technique for SiC/CNTs composite ceramic |
| CN103038166A (en) * | 2010-07-26 | 2013-04-10 | Lg伊诺特有限公司 | Silicon carbide and method for manufacturing the same |
| CN103735146A (en) * | 2013-12-17 | 2014-04-23 | 苏潮宁 | Ceramic pot special for electromagnetic cooker and preparation method of ceramic pot |
-
2016
- 2016-08-18 CN CN201610688552.5A patent/CN106316400A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293772A (en) * | 2008-05-30 | 2008-10-29 | 上海工程技术大学 | Preparation technique for SiC/CNTs composite ceramic |
| CN103038166A (en) * | 2010-07-26 | 2013-04-10 | Lg伊诺特有限公司 | Silicon carbide and method for manufacturing the same |
| CN103735146A (en) * | 2013-12-17 | 2014-04-23 | 苏潮宁 | Ceramic pot special for electromagnetic cooker and preparation method of ceramic pot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484143A (en) * | 2018-05-03 | 2018-09-04 | 福建省德化县龙民陶瓷研究所（普通合伙） | A kind of ceramic crosses tea strainer and its production method |
| CN111839137A (en) * | 2020-07-14 | 2020-10-30 | 好合苑(东莞)文化创意有限公司 | Antique tea set and manufacturing process thereof |
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