Summary of the invention
The objective of the invention is deficiency, provide a kind of anti-good thermal change performance, heat-shock resistance that has to reach 500~550 ℃ ceramic to prior art.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme:
The invention discloses a kind of ceramic, said Ceramic Production raw making materials comprises blank, and the chemical constitution of said 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%, said being weight percentage.
Preferably, the chemical constitution of said 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 said 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, said is weight part.
In the preferred embodiment of the present invention, the raw material of manufacturing of said ceramic also comprises glaze, and the chemical constitution of said 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%, said being weight percentage.
Preferably, the chemical constitution of said 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%, said being weight percentage.
In another concrete embodiment of the present invention, the raw material of said glaze comprises following component:
Sun soil 3.5~4.5 boccaros 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, said 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 ability, and through detecting, 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%, said being weight percentage.
Preferably, the chemical constitution of said 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 does
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%, said being weight percentage.
Preferably, the chemical constitution of said 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%, said being weight percentage.
The use of glaze can make ceramic surface become moist, has self-cleaning function and antifouling property, can practice thrift water for cleaning in a large number, and to improving the thermal shock resistance of ceramic, also can play about certain assisting.
In the concrete embodiment of the present invention, blank can adopt following raw materials according to press said 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, said is weight part.
Glaze can adopt following raw material to prepare by said 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; Said is weight part.
In the above-mentioned raw materials, the chemical constitution of said 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 said 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 said 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 said 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 dry contraction 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 said iron oxide red comprises Fe
2O
390%~95%;
Said 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 said 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 said 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 said 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 said 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 prepare 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; Have 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 ℃ TRs, detect by above-mentioned test, the result reaches design requirements, fracture phenomena do not occur.
Through concrete embodiment the present invention is done further detailed description below.
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: calculate the proportional quantity of 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; Drew up 80~120 eye mesh screens to slurry again, squeezed into the base pug through the material behind the screen cloth, the base pug is carried out old 72 hours after; Carry out refining just through vacuum pugmill, the refining two procedures is processed boundary's mud bar; Boundary's mud bar (piece) is put into the harder mould carry out the pressed compact moulding, place, come off together with mould behind the pressed compact, then by the dimensional requirement repaired biscuit through special-shaped disc; 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, become 45 ° direction to put into rapidly in 20 ℃ ± 2 ℃ the cold water along the vessel port plane with horizontal plane; 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: calculate the proportional quantity of 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; Drew up 80~120 eye mesh screens to slurry again, squeezed into the base pug through the material behind the screen cloth, the base pug is carried out old 72 hours after; Carry out refining just through vacuum pugmill, the refining two procedures is processed boundary's mud bar; Boundary's mud bar (piece) is put into the harder mould carry out the pressed compact moulding, place, come off together with mould behind the pressed compact, then by the dimensional requirement repaired biscuit through special-shaped disc; And dry, 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 is dropped into the ball mill ball milling 80~96 hours, put in the stock tank and fully stir, drew up 80~120 eye mesh screens to slurry again; 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 more carefully 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 is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.