CN105693204B - Half ceramic whiteware of low temperature and preparation method thereof - Google Patents

Half ceramic whiteware of low temperature and preparation method thereof Download PDF

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CN105693204B
CN105693204B CN201610069950.9A CN201610069950A CN105693204B CN 105693204 B CN105693204 B CN 105693204B CN 201610069950 A CN201610069950 A CN 201610069950A CN 105693204 B CN105693204 B CN 105693204B
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low temperature
ceramic whiteware
slurry
ceramic
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CN105693204A (en
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李建民
陈元昊
陈能慈
查婉华
陈能谨
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Fujian Dehua Huamao Ceramics Co Ltd
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    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
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    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/16Lean materials, e.g. grog, quartz
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    • C04B33/00Clay-wares
    • C04B33/32Burning methods
    • C04B33/34Burning methods combined with glazing
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C04B2235/321Dolomites, i.e. mixed calcium magnesium carbonates
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
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Abstract

The present invention relates to a kind of half ceramic whitewares of low temperature and preparation method thereof, belong to ceramic technology field.Half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: 30-40 parts of Longyan clay, kaolin raw ore 25-35 parts of Guangxi, 20-28 parts of flint, 7-12 parts of feldspar, 2-9 parts of talcum, 5-10 parts of dolomite.Half ceramic whiteware of low temperature of the present invention can at 1000 DEG C low temperature and fast firing, from firing to it is cooling only need 7-8h can kiln discharge, and its linear shrinkage ratio is small is positively retained at 12% hereinafter, hardness is high, and whiteness excellent reachable 85% or more can compare favourably with the whiteness of Lightweight ceramic;Water absorption rate is low, its water absorption rate is positively retained at 3% or less, reach the standard of porcelain industry, its intensity is good, the resistance to microwave of heat-resisting quantity is excellent, can by 180 DEG C oven test 2 times or more, can be by the use test of micro-wave oven, dish-washing machine, the present invention is applied widely, is widely portable to produce medium-to-high grade domestic ceramics.

Description

Half ceramic whiteware of low temperature and preparation method thereof
Technical field
The invention belongs to ceramic technology fields, and in particular to a kind of half ceramic whiteware of low temperature and preparation method thereof.
Background technique
Currently, low temperature fast firing ceramics are also limited to the research of lightweight white clouds pottery, reinforcing pottery etc., although lightweight white clouds Pottery, strengthen pottery firing can reach energy-saving and environment-friendly purpose, still, with ceramic demand continue to increase and people are to daily The requirement of the surcharge of porcelain is higher and higher, and lightweight white clouds pottery strengthens the market demand made pottery and do not adapted to gradually now.
It is well known that ceramic material in sintering procedure, needs the stage by expanding with heat and contract with cold, the contraction of volume can be undergone With linear expansion, current existing half ceramic whiteware has the disadvantage that first, and linear shrinkage ratio of traditional half ceramic whiteware when firing is often Up to 15% or more;Second, the firing temperature of traditional half ceramic whiteware is higher, generally at 1250 DEG C or more;Third, traditional half ceramic whiteware Firing time is longer, from firing to cooling requirement 11h or more;4th: the whiteness of traditional half ceramic whiteware is lower, influences aesthetics;The Five, the water absorption rate of traditional half ceramic whiteware is higher, and heat-resisting quantity is poor;Therefore, a kind of ingredient rationally, can low-firing and performance it is excellent Half ceramic whiteware of low temperature that is different and being widely portable to medium-to-high grade domestic ceramics is just particularly important.
Summary of the invention
The purpose of the present invention is to solve the deficiencies in the prior art, and provide a kind of half ceramic whiteware of low temperature and its production side Method, half ceramic whiteware of low temperature of the present invention can at 1000 DEG C low temperature and fast firing, and its shrinking percentage is small, and hardness is high, water absorption rate low-intensity It is good, it is widely portable to produce medium-to-high grade domestic ceramics.
The present invention adopts the following technical scheme:
Half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: 30-40 parts of Longyan clay, Guangxi kaolinite Native raw ore 25-35 parts, 20-28 parts of flint, 7-12 parts of feldspar, 2-9 parts of talcum, 5-10 parts of dolomite.
Further, half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: Longyan clay 35 parts, 30 parts of Guangxi kaolin raw ore, 23 parts of flint, 9 parts of feldspar, 5 parts of talcum, 7 parts of dolomite.
The production method of half ceramic whiteware of low temperature, steps are as follows:
Step 1: according to the raw material proportioning, by Longyan clay, Guangxi kaolin raw ore, flint, feldspar, talcum and white clouds Stone is put into ball mill, water is added, by raw material ball milling 24-36h, wherein ballstone in ball mill, raw material, addition water quality Than for 2:1:0.6;
Step 2: the good slurry of ball milling is subjected to fineness test, screen over-size is qualified fineness between 1.5%-2%;
Step 3: by slurry under vacuum condition sending down abnormally ascending, remove slurry in bubble;
Step 4: the slurry after degasification clean except iron;
Step 5: the slurry after cleaning except iron is aging spare;
Step 6: slurry is evacuated to filter press with high-pressure plunger pump and carries out filters pressing, filters pressing is at mud cake;
Step 7: mud cake is aging spare;
Step 8: by mud cake pug mill pugging 2-3 times, it is uniformly mixed moisture content in mud cake, bubble-free;
Step 9: mud item is made according to product size in mud cake, it is spare to be pressed into green body;
Step 10: carrying out glazing for green body, after fire 3-4h at 1000 DEG C, up to half ceramic whiteware of low temperature after cooling kiln discharge.
Further, the production method of half ceramic whiteware of low temperature is wherein true in -10000Pa by slurry in step 3 Sending down abnormally ascending 15min under pneumatics power.
Further, the production method of half ceramic whiteware of low temperature wherein is carried out removing iron and be removed in step 4 with high bar magnet It is miscellaneous.
Further, the production method of half ceramic whiteware of low temperature, wherein mud cake water content described in step 6 controls In 22%-24%.
Further, the production method of half ceramic whiteware of low temperature, it is wherein standby by mud cake aging 21-28 days in step 7 With.
Further, the production method of half ceramic whiteware of low temperature, wherein pug mill vacuum degree described in step 8 is not Lower than 0.085MPa.
Compared with prior art, the present invention has the advantages that:
Half ceramic whiteware of low temperature of the present invention can at 1000 DEG C low temperature and fast firing, from firing to cooling only need 7-8h that can go out Kiln, and its linear shrinkage ratio is small is positively retained at 12% hereinafter, hardness is high, whiteness is excellent up to 85% or more, can be with the whiteness of Lightweight ceramic It compares favourably;Water absorption rate is low, and water absorption rate is positively retained at 3% hereinafter, reaching the standard of porcelain industry, intensity is good, and heat-resisting quantity is resistance to Microwave is excellent, can by 180 DEG C oven test 2 times or more, can be by the use test of micro-wave oven, dish-washing machine, traditional is white Porcelain can only be 1 time through the oven test, meanwhile, the present invention is applied widely, is widely portable to produce medium-to-high grade domestic ceramics.
Since firing time of the present invention is short, can effectively save firing cost, shrinking percentage is small, solve porcelain be easily deformed, The deficiency of breach, because the formula of half ceramic whiteware of the present invention is dexterously answered using the expansion that porcelain billet generates during vitreous is at porcelain Power, to offset the shrinkage stress of porcelain billet generation, to effectively control the deformation of porcelain billet, breach tendency, it is ensured that the rule of product Whole degree and yield rate reduce the size of production mold, effectively improve kiln simultaneously as shrinking dosage that is small and can saving pug Furnace utilizes space;Water absorption rate is low, can reach the demand of household china, and durable, not easily broken, and heat dissipation is slow, can be by micro- Wave furnace, dish-washing machine use;Half ceramic whiteware whiteness of the present invention is high, keeps its presentation nature white, keeps product itself beautiful fair and clear, firing temperature It is low, not only save burning cost, and maximizing improve kiln utilization rate, extend kiln service life, reach low-carbon emission Purpose.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and it should not be regarded as limiting this hair Bright range.
Embodiment 1
Half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: 35 parts of Longyan clay, Guangxi kaolin are former 30 parts of mine, 23 parts of flint, 9 parts of feldspar, 5 parts of talcum, 7 parts of dolomite.
The production method of half ceramic whiteware of low temperature, steps are as follows:
Step 1: according to the raw material proportioning, by Longyan clay, Guangxi kaolin raw ore, flint, feldspar, talcum and white clouds Stone is put into ball mill, water is added, by raw material ball milling 30h, wherein ballstone in ball mill, raw material, addition the mass ratio of water be 2:1:0.6;
Step 2: the good slurry of ball milling is subjected to fineness test, screen over-size is qualified fineness between 1.8%;
Step 3: by slurry under -10000Pa vacuum condition sending down abnormally ascending 15min, remove slurry in bubble;
Step 4: the slurry after degasification is carried out to remove iron removal of impurities with high bar magnet;
Step 5: the slurry after cleaning except iron is aging spare;
Step 6: slurry is evacuated to filter press with high-pressure plunger pump and carries out filters pressing, filters pressing is at mud cake, the control of mud cake water content 23%;
Step 7: spare by mud cake aging 24 days;
Step 8: by mud cake pug mill pugging 2-3 times, being uniformly mixed moisture content in mud cake, bubble-free, the pug mill Vacuum degree is not less than 0.085MPa;
Step 9: mud item is made according to product size in mud cake, it is spare to be pressed into green body;
Step 10: carrying out glazing for green body, after fire 3.5h at 1000 DEG C, up to half ceramic whiteware of low temperature after cooling kiln discharge.
Embodiment 2
Half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: 30 parts of Longyan clay, Guangxi kaolin are former 25 parts of mine, 20 parts of flint, 7 parts of feldspar, 2 parts of talcum, 5 parts of dolomite.
The production method of half ceramic whiteware of low temperature, steps are as follows:
Step 1: according to the raw material proportioning, by Longyan clay, Guangxi kaolin raw ore, flint, feldspar, talcum and white clouds Stone is put into ball mill, water is added, for 24 hours by raw material ball milling, wherein ballstone in ball mill, raw material, addition the mass ratio of water be 2:1:0.6;
Step 2: the good slurry of ball milling is subjected to fineness test, screen over-size is qualified fineness between 2%;
Step 3: by slurry under -10000Pa vacuum condition sending down abnormally ascending 15min, remove slurry in bubble;
Step 4: the slurry after degasification is carried out to remove iron removal of impurities with high bar magnet;
Step 5: the slurry after cleaning except iron is aging spare;
Step 6: slurry is evacuated to filter press with high-pressure plunger pump and carries out filters pressing, filters pressing is at mud cake, the control of mud cake water content 22%;
Step 7: spare by mud cake aging 21 days;
Step 8: by mud cake pug mill pugging 2-3 times, being uniformly mixed moisture content in mud cake, bubble-free, the pug mill Vacuum degree is not less than 0.085MPa;
Step 9: mud item is made according to product size in mud cake, it is spare to be pressed into green body;
Step 10: carrying out glazing for green body, after fire 3h at 1000 DEG C, up to half ceramic whiteware of low temperature after cooling kiln discharge.
Embodiment 3
Half ceramic whiteware of low temperature, blank include following raw materials in terms of mass parts: 40 parts of Longyan clay, Guangxi kaolin are former 35 parts of mine, 28 parts of flint, 12 parts of feldspar, 9 parts of talcum, 10 parts of dolomite.
The production method of half ceramic whiteware of low temperature, steps are as follows:
Step 1: according to the raw material proportioning, by Longyan clay, Guangxi kaolin raw ore, flint, feldspar, talcum and white clouds Stone is put into ball mill, water is added, by raw material ball milling 36h, wherein ballstone in ball mill, raw material, addition the mass ratio of water be 2:1:0.6;
Step 2: the good slurry of ball milling is subjected to fineness test, screen over-size is qualified fineness between 1.5%;
Step 3: by slurry under -10000Pa vacuum condition sending down abnormally ascending 15min, remove slurry in bubble;
Step 4: the slurry after degasification is carried out to remove iron removal of impurities with high bar magnet;
Step 5: the slurry after cleaning except iron is aging spare;
Step 6: slurry is evacuated to filter press with high-pressure plunger pump and carries out filters pressing, filters pressing is at mud cake, the control of mud cake water content 24%;
Step 7: spare by mud cake aging 28 days;
Step 8: by mud cake pug mill pugging 2-3 times, being uniformly mixed moisture content in mud cake, bubble-free, the pug mill Vacuum degree is not less than 0.085MPa;
Step 9: mud item is made according to product size in mud cake, it is spare to be pressed into green body;
Step 10: carrying out glazing for green body, after fire 4h at 1000 DEG C, up to half ceramic whiteware of low temperature after cooling kiln discharge.
Half ceramic whiteware of low temperature its linear shrinkage ratio fired according to embodiment 1 to 3 is small to be positively retained at 12% hereinafter, Baidu Reach 85% or more, water absorption rate is positively retained at 3% hereinafter, its intensity is good, hardness is high, and the resistance to microwave of heat-resisting quantity is excellent, can be through It crosses 180 DEG C of oven tests 2 times or more, can only be tried through the baking oven by the use test of micro-wave oven, dish-washing machine, traditional ceramic whiteware It tests 1 time.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention It is defined by the appending claims and its equivalent thereof.

Claims (7)

1. a kind of production method of half ceramic whiteware of low temperature, which is characterized in that steps are as follows:
Step 1: blank according to mass fraction meter raw material proportioning: 30-40 parts of Longyan clay, kaolin raw ore 25-35 parts of Guangxi, 20-28 parts of flint, 7-12 parts of feldspar, 2-9 parts of talcum, 5-10 parts of dolomite, by Longyan clay, Guangxi kaolin raw ore, flint, length Stone, talcum and dolomite are put into ball mill, water are added, by raw material ball milling 24-36h, wherein ballstone in ball mill, raw material plus The mass ratio of the water entered is 2:1:0.6;
Step 2: the good slurry of ball milling is subjected to fineness test, screen over-size is qualified fineness between 1.5%-2%;
Step 3: by slurry under vacuum condition sending down abnormally ascending, remove slurry in bubble;
Step 4: the slurry after degasification clean except iron;
Step 5: the slurry after cleaning except iron is aging spare;
Step 6: slurry is evacuated to filter press with high-pressure plunger pump and carries out filters pressing, filters pressing is at mud cake;
Step 7: mud cake is aging spare;
Step 8: by mud cake pug mill pugging 2-3 times, it is uniformly mixed moisture content in mud cake, bubble-free;
Step 9: mud item is made according to product size in mud cake, it is spare to be pressed into green body;
Step 10: carrying out glazing for green body, after fire 3-4h at 1000 DEG C, up to half ceramic whiteware of low temperature after cooling kiln discharge.
2. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that blank is according to quality in step 1 The following raw material of number meter matches: 35 parts of Longyan clay, 30 parts of Guangxi kaolin raw ore, 23 parts of flint, 9 parts of feldspar, 5 parts of talcum, 7 parts of dolomite.
3. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that in step 3 by slurry in- Sending down abnormally ascending 15min under 10000Pa vacuum pressure.
4. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that carried out in step 4 with high bar magnet Except iron cleans.
5. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that mud cake described in step 6 is aqueous Amount control is in 22%-24%.
6. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that in step 7 that mud cake is aging 21-28 days spare.
7. the production method of half ceramic whiteware of low temperature according to claim 1, which is characterized in that pug mill described in step 8 is true Reciprocal of duty cycle is not less than 0.085MPa.
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CN107056249B (en) * 2017-04-25 2018-11-23 福建德化五洲陶瓷股份有限公司 High-performance ceramic whiteware green body and preparation method thereof
CN107266038A (en) * 2017-06-16 2017-10-20 福建泉州顺美集团有限责任公司 Moisten ceramic whiteware and its preparation and preparation technology
CN107216119B (en) * 2017-06-21 2019-09-20 泉州市陶瓷科学技术研究所 Ceramic whiteware and its preparation process are built in Dehua
CN110510991A (en) * 2019-10-09 2019-11-29 山东雅美特新材料科技股份有限公司 A kind of white ceramic plate and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN1754859A (en) * 2005-06-27 2006-04-05 陈瑶武 Low temperature semi-porcelain and its preparation method
CN103435329A (en) * 2013-08-19 2013-12-11 湖南华联瓷业股份有限公司 Low-water absorption stoneware and production method thereof
CN104944912A (en) * 2015-06-19 2015-09-30 揭阳市揭东易成陶瓷实业有限公司 Formula for environment-friendly energy-saving low-temperature white semi-porcelain and method for preparing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1754859A (en) * 2005-06-27 2006-04-05 陈瑶武 Low temperature semi-porcelain and its preparation method
CN103435329A (en) * 2013-08-19 2013-12-11 湖南华联瓷业股份有限公司 Low-water absorption stoneware and production method thereof
CN104944912A (en) * 2015-06-19 2015-09-30 揭阳市揭东易成陶瓷实业有限公司 Formula for environment-friendly energy-saving low-temperature white semi-porcelain and method for preparing the same

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