Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of anti-good thermal change performance, heat-shock resistance that has to reach 500~550 ℃ ceramic.
For achieving the above object, the present invention has adopted following technical scheme:
The invention discloses a kind of ceramic, described Ceramic Production is made raw material and is comprised blank, and the chemical constitution of described blank comprises:
SiO
2?66%~72%,???Al
2O
3?17%~23%,
Fe
2O
3?2.5%~4.5%,CaO?0.4%~0.5%,
MgO?1%~2%,??????Na
2O?0.18%~0.22%,
K
2O 2.0%~3.5%, TiO
20.75%~0.92%, described being weight percentage.
Preferably, the chemical constitution of described blank comprises:
SiO
2?67%~69.5%,Al
2O
3?19%~21.5%,
Fe
2O
3?2.5%~4.5%,CaO?0.4%~0.5%,
MgO?1.4%~2.0%,Na
2O?0.19%~0.21%,
K
2O?2.5%~3.5%,TiO
2?0.8%~0.9%。
In the concrete embodiment of the present invention, the raw material of described blank comprises following component:
Sun soil 9~11, preferred 10; Point mountain range soil 30~36, preferred 33;
Boccaro soil 37~45, preferred 41; Yichuan soil 9~11, preferred 10;
Grog 5.4~6.6, preferred 6, described is weight part.
In the preferred embodiment of the present invention, the raw material of manufacturing of described ceramic also comprises glaze, and the chemical constitution of described glaze comprises
SiO
2?56%~67%,Al
2O
3?13%~18%,
Fe
2O
3?10%~14%,CaO?1.8%~2.5%,
MgO?2.4%~3.1%,Na
2O?0.80%~1.05%,
K
2O?2.0%~2.5%,TiO
2?0.60%~0.75%,
B
2O
30.5%~0.7%, ZnO 1.7%~2.2%, described being weight percentage.
Preferably, the chemical constitution of described glaze comprises
SiO
2?58.5%~61%,Al
2O
3?13.5%~16%,
Fe
2O
3?11%~13.5%,CaO?2.0%~2.5%,
MgO?2.7%~3.0%,Na
2O?0.90%~1.0%,
K
2O?2.20%~2.5%,TiO
2?0.65%~0.70%,
B
2O
30.59%~0.61%, ZnO 1.89%~2.0%, described being weight percentage.
In another concrete embodiment of the present invention, the raw material of described glaze comprises following component:
Sun soil 3.5~4.5 boccaro soil 15~19
Iron oxide red 9~11 talcums 4.5~5.5
Soil 3.5~4.5 loess 19.5~24.5 in the ash
Frit 11.5~14.5 water glass 1.8~2.2
Grog 20~26, described is weight part.
Above-mentioned ceramic of the present invention is preferably Boccaro ceramic ware.
Owing to adopted above technical scheme, the beneficial effect that the present invention is possessed is:
Ceramic of the present invention, particularly Boccaro ceramic ware have excellent heat-resisting sex change energy, and after testing, ceramic heat-shock resistance of the present invention can reach 500 ℃~550 ℃, thereby can be suitable for using as the heating inner bag of electric soup cooker, electric cooker.
Embodiment
The invention discloses a kind of ceramic, particularly a kind of Boccaro ceramic ware, it is manufactured raw material and comprises blank, and the chemical constitution of this blank comprises:
SiO
2?66%~72%,Al
2O
3?17%~23%,
Fe
2O
3?2.5%~4.5%,CaO?0.4%~0.5%,
MgO?1%~2%,Na
2O?0.18%~0.22%,
K
2O 2.0%~3.5%, TiO
20.75%~0.92%, described being weight percentage.
Preferably, the chemical constitution of described blank comprises:
SiO
2?67%~69.5%,Al
2O
3?19%~21.5%,
Fe
2O
3?2.5%~4.5%,CaO?0.4%~0.5%,
MgO?1.4%~2.0%,Na
2O?0.19%~0.21%,
K
2O?2.5%~3.5%,TiO
2?0.8%~0.9%。
Ceramic of the present invention can also preferably include glaze, and the chemical constitution of this glaze is
SiO
2?56%~67%,Al
2O
3?13%~18%,
Fe
2O
3?10%~14%,CaO?1.8%~2.5%,
MgO?2.4%~3.1%,Na
2O?0.80%~1.05%,
K
2O?2.0%~2.5%,TiO
2?0.60%~0.75%,
B
2O
30.5%~0.7%, ZnO 1.7%~2.2%, described being weight percentage.
Preferably, the chemical constitution of described glaze comprises
SiO
2?58.5%~61%,Al
2O
3?13.5%~16%,
Fe
2O
3?11%~13.5%,CaO?2.0%~2.5%,
MgO?2.7%~3.0%,Na
2O?0.90%~1.0%,
K
2O?2.20%~2.5%,TiO
2?0.65%~0.70%,
B
2O
30.59%~0.61%, ZnO 1.89%~2.0%, described being weight percentage.
The use of glaze can make ceramic surface become moist, has self-cleaning function and antifouling property, can save water for cleaning in a large number, and to improving the thermal shock resistance of ceramic, also can play certain auxiliary about.
In the concrete embodiment of the present invention, blank can adopt following raw materials according to press described mixed preparation:
Sun soil 9~11, preferred 10; Point mountain range soil 30~36, preferred 33;
Boccaro soil 37~45, preferred 41; Yichuan soil 9~11, preferred 10;
Grog 5.4~6.6, preferred 6, described is weight part.
Glaze can adopt following raw material to prepare by described mixed:
Sun soil 3.5~4.5, preferred 4; Boccaro soil 15~19, preferred 17;
Iron oxide red 9~11, preferred 10; Talcum 4.5~5.5, preferred 5;
Soil 3.5~4.5, preferred 4 in the ash; Loess 19.5~24.5, preferred 22;
Frit 11.5~14.5, preferred 13; Water glass 1.8~2.2, preferred 2;
Grog 20~26, preferred 23; Described is weight part.
In the above-mentioned raw materials, the chemical constitution of described sun soil comprises:
SiO
2?50%~63%,Al
2O
3?1.1%~1.5%,
Fe
2O
3?1.0%~1.4%,CaO?2.9%~3.6%,
MgO?4.3%~5.5%,Na
2O?0.24%~0.30%,
K
2O?0.30%~0.36%,TiO
2?0.36%~0.44%;
The chemical constitution of described sharp mountain range soil comprises:
SiO
2?66%~75%,Al
2O
3?19%~26%,
Fe
2O
3?2.0%~3.0%,CaO?0.09%~0.11%,
MgO?0.45%~0.56%,Na
2O?0.09%~0.11%,
K
2O?2.0%~3.0%,TiO
2?1.0%~1.5%;
The chemical constitution of described boccaro soil comprises:
SiO
2?65%~71%,Al
2O
3?18%~24%,
Fe
2O
3?2.0%~5.0%,CaO?0.018%~0.022%,
MgO?1.32%~1.61%,Na
2O?0.12%~0.14%,
K
2O?3.5%~4.5%,TiO
2?0.80%~1.05%。
The chemical constitution of described Yichuan soil comprises:
SiO
2?70%~80%,Al
2O
3?16%~24%,
Fe
2O
3?0.5%~1.5%,CaO?0.29%~0.35%,
MgO?0.11%~0.13%,Na
2O?0.42%~0.52%,
K
2O?2.5%~3.5%,TiO
2?0.08%~0.10%。
Grog is meant that clay or other raw materials are ground into the powder material that certain granules is formed after high-temperature calcination, such as waste ceramic vessel, useless refractory brick, barren rock English calcining goods, haydite etc.Use grog, both can reduce the plasticity-of admixtion, can reduce base substrate again in contraction dry and when burning till.Used grog among the present invention, its chemical constitution comprises:
SiO
2?66%~80%,Al
2O
3?14%~20%,
Fe
2O
3?3%~5%,CaO?0.4%~0.8%,
MgO?1%~4%,Na
2O?0.10%~1.0%,
K
2O?0.5%~3.0%,TiO
2?0.7%~1.0%。
The chemical constitution of described iron oxide red comprises Fe
2O
390%~95%;
Described steatitic chemical constitution comprises:
SiO
2?53%~62%,Al
2O
3?0.7%~1.0%,
Fe
2O
3?0.13%~0.15%,CaO?7%~9%,
MgO?27%~36%,Na
2O?0.5%~0.8%,
K
2O?0.12%~0.14%,TiO
2?0.09%~0.11%;
The chemical constitution of soil comprises in the described ash:
SiO
2?78.5%~83%,Al
2O
3?15.5%~20%,
Fe
2O
3?0.19%~0.23%,CaO?0.39%~0.47%,
MgO?0.68%~0.83%;
The chemical constitution of described loess comprises:
SiO
2?64%~72%,Al
2O
3?19%~26%,
Fe
2O
3?4.5%~6.0%,CaO?0.09%~0.11%,
MgO?0.7%~0.86%,Na
2O?0.045%~0.055%,
K
2O?1.4%~2.0%,TiO
2?1.2%~1.8%;
The chemical constitution of described frit comprises:
SiO
2?57%~66%,Al
2O
3?7.0%~9.2%,
Fe
2O
3?0.36%~0.44%,CaO?0.9%~1.2%,
MgO?1.7%~2.2%,Na
2O?3.9%~4.9%,
K
2O?3.9%~4.9%,TiO
2?0.045%~0.055%;
B
2O
3?4.1%~5.1%,ZnO?12%~18%;
The chemical constitution of described water glass comprises:
SiO
2?24%~30%,Na
2O?10%~13%。
Used in embodiments of the present invention above-mentioned raw materials, it has chemical ingredients as shown in the table respectively:
Chemical constitution (%) |
??SiO
2 |
??Al
2O
3 |
??Fe
2O
3 |
??CaO |
??MgO |
??Na
2O
|
??K
2O
|
??TiO
2 |
??B
2O
3 |
??ZnO |
Loss on ignition |
Sun soil |
??56.43 |
??1.13 |
??1.21 |
??3.27 |
??4.82 |
??0.27 |
??0.33 |
??0.4 |
|
|
??21.23 |
Boccaro soil |
??67.51 |
??21.5 |
??4.54 |
??0.02 |
??1.44 |
??0.13 |
??4.06 |
??0.93 |
|
|
??5.8 |
Iron oxide red |
|
|
??93 |
|
|
|
|
|
|
|
|
Talcum |
??57.64 |
??0.86 |
??0.14 |
??7.8 |
??30.32 |
??0.65 |
??0.13 |
??0.1 |
|
|
??1.36 |
Soil in the ash |
??80.79 |
??16.03 |
??2.07 |
??0.43 |
??0.72 |
|
|
|
|
|
|
Yichuan soil |
??73.8 |
??20.24 |
??1.024 |
??0.32 |
??0.12 |
??0.47 |
??2.91 |
??0.09 |
|
|
??6.28 |
Loess |
??67.98 |
??21.28 |
??5.18 |
??0.01 |
??0.78 |
??0.05 |
??1.58 |
??1.39 |
|
|
??7.88 |
Frit |
??62.65 |
??8.27 |
??0.4 |
??1.09 |
??1.88 |
??4.37 |
??4.38 |
??0.05 |
??4.64 |
??14.87 |
??0.37 |
Water glass |
??27.54 |
|
|
|
|
??11.43 |
|
|
|
|
|
Point mountain range soil |
??67.84 |
??21.97 |
??2.57 |
??0.1 |
??0.51 |
??0.1 |
??2.39 |
??1.09 |
|
|
??6.86 |
Grog |
??67.5 |
??19.187 |
??3.1964 |
??0.4432 |
??1.471 |
??0.203 |
??2.809 |
??0.839 |
|
|
|
Above-mentioned raw materials by described mixed, levigate after, can make blank and/or the glaze that obtains ceramic of the present invention according to this area ordinary method.
Such as, can adopt following technology to be prepared blank:
Blank feed proportioning → ball milling → stirring sieves → press filtration → old → vacuum refining mud → pressed compact moulding, the demoulding → repaired biscuit → oven dry → glazing → burn till
For another example, can adopt following prepared glaze:
Glaze feed proportioning → ball milling → stirring is sieved → old → accent glaze
Has the ceramic that blank of the present invention and/or glaze are formed, Boccaro ceramic ware particularly, has good thermal stability, heat-shock resistance can reach 500 ℃~550 ℃, according to national standard " domestic ceramics device heat-shock resistance measuring method " GB/T 3298-2008, and two standards of light industry standard " conventional ceramic cooking device " QB/T 2579-2002 are carried out the test of heat-shock resistance (original claim " thermostability "), in 500 ℃~550 ℃ temperature ranges, detect by above-mentioned test, the result reaches design requirements, fracture phenomena do not occur.
Below by specific embodiment the present invention is done further detailed description.
Embodiment 1
The formulation blank of according to the form below 1, the numeric representation weight part in the table:
Adopt the formulation blank of table 1:
Blank production technique brief description: the proportional quantity that calculates actual materials according to the water ratio of raw material, confected materials was dropped into the ball mill ball milling 7~8 hours, put in the stock tank and fully stir, again slurry was drawn up 80~120 eye mesh screens, squeeze into the base pug through the material behind the screen cloth, after the base pug carried out old 72 hours, carry out refining just by vacuum pugmill, the refining two procedures is made boundary's mud bar, boundary's mud bar (piece) is put into the harder mould carry out the pressed compact moulding, place together with mould behind the pressed compact, come off by special-shaped disc, press the dimensional requirement repaired biscuit then, and dry, send into the kiln Low fire ceramic at last.
The above-mentioned boccaro courage for preparing according to national standard " domestic ceramics device heat-shock resistance measuring method " GB/T 3298-2008, is reached the test that two standards of light industry standard " conventional ceramic cooking device " QB/T 2579-2002 are carried out heat-shock resistance (original claim " thermostability ").The testing experiment method comprises: container (being the above-mentioned boccaro courage for preparing) is placed in the baking oven, make the baking oven energising be warming up to specified temperature, keep 30min then, container is taken out from baking oven, put into rapidly along vessel port plane and horizontal plane direction at 45 in 20 ℃ ± 2 ℃ the cold water, up to vessel temp and water temperature balance, check then whether container has fracture phenomena.
In the present embodiment, oven temperature is set to 500 ℃, check result container crack-free.
Embodiment 2
According to the formulation blank of table 1 among the embodiment 1, the formulation glaze of while according to the form below 2, the numeric representation weight part in the table.
Blank production technique brief description: the proportional quantity that calculates actual materials according to the water ratio of raw material, confected materials was dropped into the ball mill ball milling 7~8 hours, put in the stock tank and fully stir, again slurry was drawn up 80~120 eye mesh screens, squeeze into the base pug through the material behind the screen cloth, after the base pug carried out old 72 hours, carry out refining just by vacuum pugmill, the refining two procedures is made boundary's mud bar, boundary's mud bar (piece) is put into the harder mould carry out the pressed compact moulding, place together with mould behind the pressed compact, come off by special-shaped disc,, and dry then by the dimensional requirement repaired biscuit, can glazing after the oven dry, send into the kiln Low fire ceramic at last.
The production technique brief description of glaze: the proportional quantity that calculates actual materials according to the water ratio of raw material, confected materials was dropped into the ball mill ball milling 80~96 hours, put in the stock tank and fully stir, again slurry was drawn up 80~120 eye mesh screens, after slurry behind the process screen cloth carries out old 72 hours, the glaze slip that does not precipitate is crossed 250 orders be delivered to other containers store (glaze is thin more good more), and, can throw in use after being fit to glaze concentration, mixing color with upper screen cloth.
According to the identical detection method of embodiment 1, oven temperature is set at 550 ℃, the check result container meets the requirements, crack-free.
Embodiment 3
The formulation blank of according to the form below 3, the numeric representation weight part in the table:
The formulation glaze of according to the form below 4, the numeric representation weight part in the table:
Prepare boccaro electric soup cooker inner bag according to embodiment 2 identical production technique, and press the identical detection method of embodiment 1, oven temperature is set at 550 ℃, the check result container meets the requirements, crack-free.
Embodiment 4
The formulation blank of according to the form below 5, the numeric representation weight part in the table:
The formulation glaze of according to the form below 6, the numeric representation weight part in the table:
Prepare boccaro electric soup cooker inner bag according to embodiment 2 identical production technique, and the identical detection method of embodiment 1, oven temperature is set at 500 ℃, the check result container meets the requirements, crack-free.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.