CN107601898A - A kind of preparation method of pottery blue glaze - Google Patents
A kind of preparation method of pottery blue glaze Download PDFInfo
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Abstract
The invention provides a kind of preparation method of pottery blue glaze, it is made up of the glaze of following ratio of weight and number：20~25 parts of melilite, 12~18 parts of Bai Changshi, 10~15 parts of quartz, 10~15 parts of calcite, 10~12 parts of fluorite, 5~7 parts of plant ash, your 4~6 parts of blue stone, 3~5 parts of cobalt oxide, 3~5 parts of zirconium oxide, 2~4 parts of zinc oxide, 2~4 parts of aluminum oxide, 8~10 parts of 2~3 parts of tin oxide and frit obtain glaze slip by certain processing technology, then by certain technique by glaze slip, material and protective agent is helped to be coated in plain tire and obtain product, the pottery blue glaze crystal clear color that the preparation technology prepares, solve that the existing pottery color produced is dull and uncontrollable problem.
Description
Technical field
The present invention relates to pottery processing technique field, and in particular to a kind of preparation method of pottery blue glaze.
Background technology
Pottery is described as first of Chinese " five big porcelain ", being known as " the valuable an ancient unit of weight of gold is priceless " and " there is ten thousand strings of cash in family, not as pottery
One " good reputation.Pottery is world-famous for the transmutation art of uniqueness, but the yield rate of pottery is relatively low, only 30% finished product
Rate, first-class pottery are even more more rare.This is primarily due to pottery in sintering procedure by more many influence factors,
Each link may directly result in the failure of pottery production, and wherein kiln temperature change, the rate of heat addition, enameling method etc. are to an ancient unit of weight
Porcelain produces the influence that process is even more important.
Pottery transmutation refers to that the glaze on pottery can also become in sintering procedure in addition to this color glaze and other colors, and pottery
It is rare be just its unique transmutation glaze colours, its glaze colours is self-assembling formation in sintering procedure, and glaze produces in high-temperature fusion
Gorgeous colorful change, unartificial description, the glaze colours of each pottery is all unique, therefore has saying for " pottery being unparalleled "
Method, glaze color change is also different caused by different burning process, therefore it is colorful that different burning process can be taken to produce
Pottery.
The content of the invention
It is an object of the invention to provide a kind of preparation method of pottery blue glaze, pottery blue glaze color that the preparation technology prepares
Pool is glittering and translucent, solves the dull uncontrollable problem of the existing pottery color produced.
The present invention is to solve the technical scheme that above-mentioned technical problem uses to be：A kind of preparation method of pottery blue glaze, its described tool
Body step is as follows：
Step 1：Take 20~25 parts of melilite, 12~18 parts of white feldspar, 10~15 parts of quartz, 10~15 parts of calcite, fluorite
10~12 parts, be put into ball mill and be ground, the mixed powder a that screening obtains that granularity is 10~40 μm is stand-by；
Step 2：Take 5~7 parts of plant ash, your 4~6 parts of blue stone, 3~5 parts of cobalt oxide, 3~5 parts of zirconium oxide, zinc oxide 2~4
2~3 parts of part, 2~4 parts of aluminum oxide, tin oxide progress ball millings, the mixed powder b that the granularity after grinding screening is 120~160 μm, are treated
With；
Step 3：Take 8~10 parts of frit progress ball millings, the powder c that screening obtains that granularity is 100~150 μm is stand-by；
Step 4：The mixed powder a and mixed powder b that above-mentioned steps one and step 2 are obtained are added in Muffle furnace and are carried out pre-burning,
0.5~2h is incubated at 200 DEG C, Muffle furnace is then opened and carries out natural cooling at room temperature, obtain pre-burning powder, it is stand-by；
Step 5：The pre-burning powder that the step 4 obtains is taken to carry out ball milling, the granularity after grinding screening is 100~150 μm pre-
Powder d is burnt, it is stand-by；
Step 6：Will be stand-by in step 3 and step 5：Powder c and pre-burning powder d is added in batch mixer, then adds appropriate water,
Fine grinding is carried out, the fine grinding time is 2~4h, obtains glaze slip；
Step 7：The glaze slip obtained in step 6 is subjected to first time glazing to plain tire, is then dried at 120~150 DEG C,
Obtain first time semi-finished product；
Step 8：Semi-finished product in step 7 burn till for the first time, first time firing process specifically comprises the following steps：
(i), heat of oxidation first time：Semi-finished product in step 7 are put into kiln, in air atmosphere, from room temperature to 380~
410 DEG C, heating rate is 1~2 DEG C/min, then closes kiln top skylight, is progressively heated up under oxidizing atmosphere, heating rate is
2~4 DEG C/min, kiln in-furnace temperature is increased to 1050~1070 DEG C；
(ii), reduction period：Under reducing atmosphere, using heating rate as 4~7 DEG C/min, temperature is increased to 1140~1160 DEG C；
(iii), the neutral phase：Under weakly reducing atmosphere, using heating rate as 0.5~1.5 DEG C/min, temperature is increased to 1260~
1270℃；
(iv), second of heat of oxidation：Using heating rate as 0.5~1 DEG C/min, temperature is increased to 1280~1290 DEG C, insulation 1~
After 3h, cease fire immediately, then open wicket and carry out natural cooling, obtain and burn till product for the first time；
Step 9：The surface that the first time that in step 8 (iv) step obtains burns till product uniformly applies last layer and helps material, Ran Houfang
Enter in kiln and burnt till for the second time, obtain and burn till product for the second time；
Step 10：The glaze slip obtained in step 6 is subjected to second of glazing to the product that burn till for the second time obtained in step 9, so
It is dried afterwards at 120~150 DEG C, obtains second of semi-finished product, third time is then carried out in kiln is put into burns till, and obtains third time
Burn till product；
Step 11：Third time is obtained in step 6 and burns till uniform painting last layer protective agent on product, the protective agent is molten
Block, protectant preprocess method are：The frit for taking particle diameter to be 80~120 μm, which is put into ball mill, to be ground, grinding 1
~4h, add appropriate water and carry out wet-milling, 1~3h of wet-milling；Protectant third time will be scribbled burn till product and be put into kiln, carry out
Burn till for 4th time, heating rate is 3~5 DEG C/min, and 2~3h are incubated at 900~950 DEG C, directly opens kiln and is cooled down, is obtained
Product.
Further, the ratio of the water and mixed powder a, mixed powder b and the powder c mass summations that are added in the step 6 is 1:
1.1~1:2.
Further, the heating rate of pre-burning is 2~4 DEG C/min in the step 4.
Further, second of firing process and the third time firing process are identical with first time firing process.
Further, material and the mixed powder a, the mixed powder b and powder c mass summations mass ratio is helped to be described in addition
0.01:1~0.05:1.
Further, it is described to help material to be prepared by the raw material of following parts by weight：50~60 parts of frit and calcium carbonate 40
~50 parts.
Further, the preparation method for helping material is by following steps:Take 40~50 parts of 50~60 parts of frit and calcium carbonate
Ball milling is carried out, is put into Muffle furnace and is sintered, appropriate water is added after placing to room temperature and carries out wet-milling, wet-milling 2~4h is standby
With.
Further, the protective agent and the mixed powder a, mixed powder b and the mass ratio of powder c mass summations are 0.05:1
~0.1:1.
Further, the melilite, white feldspar, quartz, calcite, the granularity of fluorite are 10~40 μm.
Further, the frit, plant ash, your blue stone, cobalt oxide, zirconium oxide, zinc oxide, aluminum oxide, tin oxide
Granularity is 20~50 μm.
Beneficial effects of the present invention mainly show as follows：The invention provides a kind of relatively new pottery glaze formula, together
When the process of manufacture of glaze is described in detail, by the way that glaze to be ground to processing in batches, refined glaze
Expect the particle diameter of each composition, and mixed powder a and mixed powder b is added in Muffle furnace and carries out pre-burning, by mixed powder a and can so mix
Close the gas discharge of the residual in powder b voids, so that the glaze paint crackle on the pottery prepared is reduced, the non-normal open in surface
Thoroughly, good fluidity, uniform color, third dimension is added, not easy to foaming, there is stronger mechanical force on pottery surface；By on first time
Plain tire is dried at 120~150 DEG C after glaze, plain tire glaze is carried out into preliminarily dried at low temperature, tentatively by glaze top layer
Moisture content discharge, avoid under the high temperature conditions glaze top layer because rate of drying is too fast and cracked；Burn till for the first time, first
The secondary heat of oxidation, in air atmosphere, from room temperature to 380~410 DEG C, heating rate is 1 DEG C~2 DEG C/min, this temperature
Section uses less programming rate because this temperature phase is to exclude saggar, the moisture in product and kiln, if using compared with
High heating rate, the moisture in product can be because rapid volatilization cause gas expansion so as to cause product to burst；By reduction
Phase, neutral phase, second of heat of oxidation obtain burning till product for the first time；Then last layer is uniformly applied to the surface for burning till product for the first time
Material is helped, helps material to be made up of frit and calcium carbonate, frit is that a kind of glass forms through high temperature melting quenching, and frit and calcium carbonate are entered
Row ball milling, is then placed in Muffle furnace and is sintered, and frit and calcium carbonate be combined with each other in sintering process, after cooling plus appropriate
Water both are subjected to ball milling again, will help material is uniform to be coated in the surface for burning till product for the first time, and be then placed in kiln and carry out
Burn till for the second time, in second of sintering process, the calcium carbonate helped in material can resolve into calcium oxide and carbon dioxide at high temperature,
After burning till for the second time, some small adsorption holes can uniformly occur in the surface for burning till product for the second time；By to burning till for the second time
Product carry out second of glazing, so preferably glaze absorption can burnt till into the surface of product for the second time by adsorption hole；Finally
Last layer protective agent is uniformly applied on product burning till for the third time, protective agent is frit, and frit is uniformly coated in the 3rd after wet-milling
The secondary surface for burning till product, then burn till for the 4th time, the frit for so burning till the surface of product for the third time was burnt till at the 4th time
A kind of protective glass matter is formed on pottery surface by high temperature in journey, damage is scraped by casual to prevent pottery surface.
Embodiment
The present invention is described in detail in conjunction with the embodiments, the present embodiment is given premised on technical solution of the present invention
Detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following embodiments.
Embodiment one
A kind of preparation method of pottery blue glaze, described its comprise the following steps that：
Step 1：Take 20 parts of melilite, 12 parts of white feldspar, 10 parts of quartz, 10 parts of calcite, 10 parts of fluorite, be put into ball mill
In be ground, screening obtains the mixed powder a that granularity is 10~40 μm, stand-by；
Step 2：Take 5 parts of plant ash, your 4 parts of blue stone, 3 parts of cobalt oxide, 3 parts of zirconium oxide, 2 parts of zinc oxide, 2 parts of aluminum oxide, oxidation
2 parts of tin progress ball millings, the granularity after grinding screening is 120~160 μm mixed powder b are stand-by；
Step 3：Take 8 parts of frit progress ball millings, the powder c that screening obtains that granularity is 100~150 μm is stand-by；
Step 4：The mixed powder a and mixed powder b that above-mentioned steps one and step 2 are obtained are added in Muffle furnace and are carried out pre-burning,
0.5h~2h is incubated at 200 DEG C, Muffle furnace is then opened and carries out natural cooling at room temperature, obtain pre-burning powder, it is stand-by；
Step 5：The pre-burning powder that the step 4 obtains is taken to carry out ball milling, the granularity after grinding screening is 100~150 μm pre-
Powder d is burnt, it is stand-by；
Step 6：Will be stand-by in step 3 and step 5：Powder c and pre-burning powder d is added in batch mixer, then adds appropriate water,
Fine grinding is carried out, the fine grinding time is 2h, obtains glaze slip；
Step 7：The glaze slip obtained in step 6 is subjected to first time glazing to plain tire, is then dried at 120 DEG C, obtains the
Semi-finished product；
Step 8：Semi-finished product in step 7 burn till for the first time, first time firing process specifically comprises the following steps：
(i), heat of oxidation first time：Semi-finished product in step 7 are put into kiln, in air atmosphere, from room temperature to 380
DEG C, heating rate is 1 DEG C/min, then by kiln top skylight close, progressively heated up under oxidizing atmosphere, heating rate be 2 DEG C/
Min, kiln in-furnace temperature is increased to 1050~1070 DEG C；
(ii), reduction period：Under reducing atmosphere, using heating rate as 4 DEG C/min, temperature is increased to 1140~1160 DEG C；
(iii), the neutral phase：Under weakly reducing atmosphere, using heating rate as 0.5 DEG C/min, temperature is increased to 1260~1270 DEG C；
(iv), second of heat of oxidation：Using heating rate as 0.5 DEG C/min, temperature is increased to 1280~1290 DEG C, after being incubated 1h,
Cease fire immediately, then open wicket and carry out natural cooling, obtain and burn till product for the first time；
Step 9：The surface that the first time that in step 8 (iv) step obtains burns till product uniformly applies last layer and helps material, Ran Houfang
Enter in kiln and burnt till for the second time, obtain and burn till product for the second time；
Step 10：The glaze slip obtained in step 6 is subjected to second of glazing to the product that burn till for the second time obtained in step 9, so
It is dried afterwards at 120~150 DEG C, obtains second of semi-finished product, third time is then carried out in kiln is put into burns till, and obtains third time
Burn till product；
Step 11：Third time is obtained in step 6 and burns till uniform painting last layer protective agent on product, the protective agent is molten
Block, protectant preprocess method are：The frit for taking particle diameter to be 80~120 μm, which is put into ball mill, to be ground, and is ground
1h, add appropriate water and carry out wet-milling, wet-milling 1h；Protectant third time will be scribbled burn till product and be put into kiln, and carry out the 4th
Secondary to burn till, heating rate is 3 DEG C/min, and 2h is incubated at 930 DEG C, directly opens kiln and is cooled down, obtains product.
Further, the ratio of the water and mixed powder a, mixed powder b and the powder c mass summations that are added in the step 6 is 1:
1.1。
Further, the heating rate of pre-burning is 2 DEG C/min in the step 4.
Further, second of firing process and the third time firing process are identical with first time firing process.
Further, material and the mixed powder a, the mixed powder b and powder c mass summations mass ratio is helped to be described in addition
0.01:1。
Further, it is described to help material to be prepared by the raw material of following parts by weight：40 parts of 50 parts of frit and calcium carbonate.
Further, the preparation method for helping material is by following steps:40 parts of progress ball millings of 50 parts of frit and calcium carbonate are taken,
It is put into Muffle furnace and is sintered, appropriate water is added after placing to room temperature and carries out wet-milling, wet-milling 2h is standby.
Further, the protective agent and the mixed powder a, mixed powder b and the mass ratio of powder c mass summations are 0.05:
1。
Further, the melilite, white feldspar, quartz, calcite, the granularity of fluorite are 10~40 μm.
Further, the frit, plant ash, your blue stone, cobalt oxide, zirconium oxide, zinc oxide, aluminum oxide, tin oxide
Granularity is 20~50 μm.
Embodiment two
A kind of preparation method of pottery blue glaze, described its comprise the following steps that：
Step 1：Take 25 parts of melilite, 18 parts of white feldspar, 15 parts of quartz, 15 parts of calcite, 12 parts of fluorite, be put into ball mill
In be ground, screening obtains the mixed powder a that granularity is 10~40 μm, stand-by；
Step 2：Take 7 parts of plant ash, your 6 parts of blue stone, 5 parts of cobalt oxide, 5 parts of zirconium oxide, 4 parts of zinc oxide, 4 parts of aluminum oxide, oxidation
3 parts of tin progress ball millings, the granularity after grinding screening is 120~160 μm mixed powder b are stand-by；
Step 3：Take 10 parts of frit progress ball millings, the powder c that screening obtains that granularity is 100~150 μm is stand-by；
Step 4：The mixed powder a and mixed powder b that above-mentioned steps one and step 2 are obtained are added in Muffle furnace and are carried out pre-burning,
2h is incubated at 200 DEG C, Muffle furnace is then opened and carries out natural cooling at room temperature, obtain pre-burning powder, it is stand-by；
Step 5：The pre-burning powder that the step 4 obtains is taken to carry out ball milling, the granularity after grinding screening is 100~150 μm pre-
Powder d is burnt, it is stand-by；
Step 6：Will be stand-by in step 3 and step 5：Powder c and pre-burning powder d is added in batch mixer, then adds appropriate water,
Fine grinding is carried out, the fine grinding time is 4h, obtains glaze slip；
Step 7：The glaze slip obtained in step 6 is subjected to first time glazing to plain tire, is then dried at 120~150 DEG C,
Obtain first time semi-finished product；
Step 8：Semi-finished product in step 7 burn till for the first time, first time firing process specifically comprises the following steps：
(i), heat of oxidation first time：Semi-finished product in step 7 are put into kiln, in air atmosphere, from room temperature to 410
DEG C, heating rate is 2 DEG C/min, then by kiln top skylight close, progressively heated up under oxidizing atmosphere, heating rate be 4 DEG C/
Min, kiln in-furnace temperature is increased to 1050~1070 DEG C；
(ii), reduction period：Under reducing atmosphere, using heating rate as 7 DEG C/min, temperature is increased to 1140~1160 DEG C；
(iii), the neutral phase：Under weakly reducing atmosphere, using heating rate as 1.5 DEG C/min, temperature is increased to 1260~1270 DEG C；
(iv), second of heat of oxidation：Using heating rate as 1 DEG C/min, temperature is increased to 1280~1290 DEG C, after being incubated 3h, stood
Cease fire, then open wicket and carry out natural cooling, obtain and burn till product for the first time；
Step 9：The surface that the first time that in step 8 (iv) step obtains burns till product uniformly applies last layer and helps material, Ran Houfang
Enter in kiln and burnt till for the second time, obtain and burn till product for the second time；
Step 10：The glaze slip obtained in step 6 is subjected to second of glazing to the product that burn till for the second time obtained in step 9, so
It is dried afterwards at 120~150 DEG C, obtains second of semi-finished product, third time is then carried out in kiln is put into burns till, and obtains third time
Burn till product；
Step 11：Third time is obtained in step 6 and burns till uniform painting last layer protective agent on product, the protective agent is molten
Block, protectant preprocess method are：The frit for taking particle diameter to be 80~120 μm, which is put into ball mill, to be ground, and is ground
4h, add appropriate water and carry out wet-milling, wet-milling 3h；Protectant third time will be scribbled burn till product and be put into kiln, and carry out the 4th
Secondary to burn till, heating rate is 5 DEG C/min, and 3h is incubated at 900~950 DEG C, directly opens kiln and is cooled down, obtains product.
Further, the ratio of the water and mixed powder a, mixed powder b and the powder c mass summations that are added in the step 6 is 1:
2。
Further, the heating rate of pre-burning is 4 DEG C/min in the step 4.
Further, second of firing process and the third time firing process are identical with first time firing process.
Further, material and the mixed powder a, the mixed powder b and powder c mass summations mass ratio is helped to be described in addition
0.05:1。
Further, it is described to help material to be prepared by the raw material of following parts by weight：50 parts of 60 parts of frit and calcium carbonate.
Further, the preparation method for helping material is by following steps:50 parts of progress ball millings of 60 parts of frit and calcium carbonate are taken,
It is put into Muffle furnace and is sintered, appropriate water is added after placing to room temperature and carries out wet-milling, wet-milling 4h is standby.
Further, the protective agent and the mixed powder a, mixed powder b and the mass ratio of powder c mass summations are 0.1:1.
Further, the melilite, white feldspar, quartz, calcite, the granularity of fluorite are 10~40 μm.
Further, the frit, plant ash, your blue stone, cobalt oxide, zirconium oxide, zinc oxide, aluminum oxide, tin oxide
Granularity is 20~50 μm.
Embodiment three
A kind of preparation method of pottery blue glaze, described its comprise the following steps that：
Step 1：Take 23 parts of melilite, 16 parts of white feldspar, 13 parts of quartz, 13 parts of calcite, 11 parts of fluorite, be put into ball mill
In be ground, screening obtains the mixed powder a that granularity is 10~40 μm, stand-by；
Step 2：Take 6 parts of plant ash, your 5 parts of blue stone, 4 parts of cobalt oxide, 4 parts of zirconium oxide, 3 parts of zinc oxide, 3 parts of aluminum oxide, oxidation
2.5 parts of tin progress ball millings, the granularity after grinding screening is 120~160 μm mixed powder b are stand-by；
Step 3：Take 9 parts of frit progress ball millings, the powder c that screening obtains that granularity is 100~150 μm is stand-by；
Step 4：The mixed powder a and mixed powder b that above-mentioned steps one and step 2 are obtained are added in Muffle furnace and are carried out pre-burning,
1h is incubated at 200 DEG C, Muffle furnace is then opened and carries out natural cooling at room temperature, obtain pre-burning powder, it is stand-by；
Step 5：The pre-burning powder that the step 4 obtains is taken to carry out ball milling, the granularity after grinding screening is 100~150 μm pre-
Powder d is burnt, it is stand-by；
Step 6：Will be stand-by in step 3 and step 5：Powder c and pre-burning powder d is added in batch mixer, then adds appropriate water,
Fine grinding is carried out, the fine grinding time is 3h, obtains glaze slip；
Step 7：The glaze slip obtained in step 6 is subjected to first time glazing to plain tire, is then dried at 120~150 DEG C,
Obtain first time semi-finished product；
Step 8：Semi-finished product in step 7 burn till for the first time, first time firing process specifically comprises the following steps：
(i), heat of oxidation first time：Semi-finished product in step 7 are put into kiln, in air atmosphere, from room temperature to 390
DEG C, heating rate is 1.5 DEG C/min, then by kiln top skylight close, progressively heated up under oxidizing atmosphere, heating rate be 3 DEG C/
Min, kiln in-furnace temperature is increased to 1050~1070 DEG C；
(ii), reduction period：Under reducing atmosphere, using heating rate as 5.5 DEG C/min, temperature is increased to 1140~1160 DEG C；
(iii), the neutral phase：Under weakly reducing atmosphere, using heating rate as 1 DEG C/min, temperature is increased to 1260~1270 DEG C；
(iv), second of heat of oxidation：Using heating rate as 0.75 DEG C/min, temperature is increased to 1280~1290 DEG C, after being incubated 2h,
Cease fire immediately, then open wicket and carry out natural cooling, obtain and burn till product for the first time；
Step 9：The surface that the first time that in step 8 (iv) step obtains burns till product uniformly applies last layer and helps material, Ran Houfang
Enter in kiln and burnt till for the second time, obtain and burn till product for the second time；
Step 10：The glaze slip obtained in step 6 is subjected to second of glazing to the product that burn till for the second time obtained in step 9, so
It is dried afterwards at 120~150 DEG C, obtains second of semi-finished product, third time is then carried out in kiln is put into burns till, and obtains third time
Burn till product；
Step 11：Third time is obtained in step 6 and burns till uniform painting last layer protective agent on product, the protective agent is molten
Block, protectant preprocess method are：The frit for taking particle diameter to be 80~120 μm, which is put into ball mill, to be ground, and is ground
2.5h, add appropriate water and carry out wet-milling, wet-milling 2h；Protectant third time will be scribbled burn till product and be put into kiln, and carry out the
Burn till for four times, heating rate is 4 DEG C/min, and 2.5h are incubated at 900~950 DEG C, directly opens kiln and is cooled down, obtains product.
Further, the ratio of the water and mixed powder a, mixed powder b and the powder c mass summations that are added in the step 6 is 1:
1.5。
Further, the heating rate of pre-burning is 3 DEG C/min in the step 4.
Further, second of firing process and the third time firing process are identical with first time firing process.
Further, material and the mixed powder a, the mixed powder b and powder c mass summations mass ratio is helped to be described in addition
0.03:1。
Further, it is described to help material to be prepared by the raw material of following parts by weight：45 parts of 55 parts of frit and calcium carbonate.
Further, the preparation method for helping material is by following steps:45 parts of progress ball millings of 55 parts of frit and calcium carbonate are taken,
It is put into Muffle furnace and is sintered, appropriate water is added after placing to room temperature and carries out wet-milling, wet-milling 3h is standby.
Further, the protective agent and the mixed powder a, mixed powder b and the mass ratio of powder c mass summations are 0.075:
1。
Further, the melilite, white feldspar, quartz, calcite, the granularity of fluorite are 10~40 μm.
Further, the frit, plant ash, your blue stone, cobalt oxide, zirconium oxide, zinc oxide, aluminum oxide, tin oxide
Granularity is 20~50 μm.
Feldspar belongs to silicate mineral salt, and its internal content is potassium element, sodium element and calcium constituent etc., is divided into yellow, white
Color and red etc., are the main components of glaze, and the formation mainly for glaze plays an important role.Many ore is distributed with Yuzhou
Hide；
Calcite mainly reduces glaze melting temperature, increases the glossiness and transparency of glaze colours, the cracking of preventing and treating glaze paint and accumulation, uses
Amount can not be excessive, otherwise can cause glaze paint crystallization devitrification, cause temperature to narrow, and change is very few, and causes glaze paint smoking；
Fluorite is a kind of mineral, and isometric system, its main component is calcirm-fluoride, can reduce the melting temperature of glaze, increases the stream of glaze
Dynamic property, while there is milkiness effect, the glossiness of chun glaze can be improved, improves the suspension of glaze slip；
Quartz is usually used in pottery glaze；Plant ash is from pine ash；
Zinc oxide is a kind of conventional chemical addition agent, be widely used in plastics, silicate product, synthetic rubber, lubricating oil,
In the making of the products such as paint, ointment, adhesive, food, battery, fire retardant.The band gap and exciton confinement of zinc oxide
Can be larger, transparency is high, there is excellent normal temperature luminescent properties；
Frit, there is insolubility, stability is standby after processing grinding, be able to can also be used alone as the strong solvent of glaze.
Frit is that a kind of glass forms through high temperature melting quenching；It is polished to impose on pottery, into the nature of glass of a thin layer after firing；Oxygen
Change major colorants of the zirconium as reddish black pottery glaze,
Tin oxide is cubic white, faint yellow or light gray, six sides or orthorhombic system powder.1630 DEG C of fusing point；
Alumina grain can be refined by adding zirconium dioxide in the present invention, so as to increase densification of the glaze in sintering process
Degree；Cupric oxide is upper conventional colouring agent in pottery glaze；
Your blue stone main component is silica, is a kind of stone material for preparing pottery glaze, it is in the Henan People's Press《China
An ancient unit of weight stove is studied》It is discussed in detail in one book；
The present invention, which coordinates nature raw material and industrial chemicals, to interact, and so under high-temperature fusion effect, production is original in style
Glaze colours, there is good social and economic benefit；
The invention provides a kind of preparation method of ceramic cobalt blue glaze, by the way that glaze to be ground to processing in batches, glaze has been refined
The particle diameter of each composition, and mixed powder a and mixed powder b is added in Muffle furnace and carries out pre-burning, so can be by mixed powder a and mixing
The gas discharge of residual in powder b voids, so that the glaze paint crackle on the pottery prepared is reduced, the non-normal open in surface
Thoroughly, good fluidity, uniform color, third dimension is added, not easy to foaming, there is stronger mechanical force on pottery surface；By on first time
Plain tire is dried at 120~150 DEG C after glaze, plain tire glaze is carried out into preliminarily dried at low temperature, tentatively by glaze top layer
Moisture content discharge, avoid under the high temperature conditions glaze top layer because rate of drying is too fast and cracked；Burn till for the first time, first
The secondary heat of oxidation, in air atmosphere, from room temperature to 380~410 DEG C, heating rate is 1 DEG C~2 DEG C/min, this temperature
Section uses less programming rate because this temperature phase is to exclude saggar, the moisture in product and kiln, if using compared with
High heating rate, the moisture in product can be because rapid volatilization cause gas expansion so as to cause product to burst；By reduction
Phase, neutral phase, second of heat of oxidation obtain burning till product for the first time；Then last layer is uniformly applied to the surface for burning till product for the first time
Material is helped, helps material to be made up of frit and calcium carbonate, frit is that a kind of glass forms through high temperature melting quenching, and frit and calcium carbonate are entered
Row ball milling, is then placed in Muffle furnace and is sintered, and frit and calcium carbonate be combined with each other in sintering process, after cooling plus appropriate
Water both are subjected to ball milling again, will help material is uniform to be coated in the surface for burning till product for the first time, and be then placed in kiln and carry out
Burn till for the second time, in second of sintering process, the calcium carbonate helped in material can resolve into calcium oxide and carbon dioxide at high temperature,
After burning till for the second time, some small adsorption holes can uniformly occur in the surface for burning till product for the second time；By to burning till for the second time
Product carry out second of glazing, so preferably glaze absorption can burnt till into the surface of product for the second time by adsorption hole；Finally
Last layer protective agent is uniformly applied on product burning till for the third time, protective agent is frit, and frit is uniformly coated in the 3rd after wet-milling
The secondary surface for burning till product, then burn till for the 4th time, the frit for so burning till the surface of product for the third time was burnt till at the 4th time
A kind of protective glass matter is formed on pottery surface by high temperature in journey, damage is scraped by casual to prevent pottery surface.
It should also be noted that, herein, the relational terms such as I, II, III are used merely to an entity or behaviour
Make with another entity or operation make a distinction, and not necessarily require or imply these entities or operate between exist it is any this
Kind actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Include so that process, method, article or equipment including a series of elements not only include those key elements, but also
Including the other element being not expressly set out, or also include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described
Other identical element also be present in the process of element, method, article or equipment.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Claims (10)
- A kind of 1. preparation method of pottery blue glaze, it is characterised in that：Described its comprises the following steps that：Step 1：Take 20~25 parts of melilite, 12~18 parts of white feldspar, 10~15 parts of quartz, 10~15 parts of calcite, fluorite 10~12 parts, be put into ball mill and be ground, the mixed powder a that screening obtains that granularity is 10~40 μm is stand-by；Step 2：Take 5~7 parts of plant ash, your 4~6 parts of blue stone, 3~5 parts of cobalt oxide, 3~5 parts of zirconium oxide, zinc oxide 2~4 2~3 parts of part, 2~4 parts of aluminum oxide, tin oxide progress ball millings, the mixed powder b that the granularity after grinding screening is 120~160 μm, are treated With；Step 3：Take 8~10 parts of frit progress ball millings, the powder c that screening obtains that granularity is 100~150 μm is stand-by；Step 4：The mixed powder a and mixed powder b that above-mentioned steps one and step 2 are obtained are added in Muffle furnace and are carried out pre-burning, 0.5~2h is incubated at 200 DEG C, Muffle furnace is then opened and carries out natural cooling at room temperature, obtain pre-burning powder, it is stand-by；Step 5：The pre-burning powder that the step 4 obtains is taken to carry out ball milling, the granularity after grinding screening is 100~150 μm pre- Powder d is burnt, it is stand-by；Step 6：Will be stand-by in step 3 and step 5：Powder c and pre-burning powder d is added in batch mixer, then adds appropriate water, Fine grinding is carried out, the fine grinding time is 2~4h, obtains glaze slip；Step 7：The glaze slip obtained in step 6 is subjected to first time glazing to plain tire, is then dried at 120~150 DEG C, Obtain first time semi-finished product；Step 8：Semi-finished product in step 7 burn till for the first time, first time firing process specifically comprises the following steps：(i), heat of oxidation first time：Semi-finished product in step 7 are put into kiln, in air atmosphere, from room temperature to 400 DEG C, heating rate is 1~2 DEG C/min, then by kiln top skylight close, progressively heated up under oxidizing atmosphere, heating rate be 2~ 4 DEG C/min, kiln in-furnace temperature is increased to 1050~1070 DEG C；(ii), reduction period：Under reducing atmosphere, using heating rate as 4~7 DEG C/min, temperature is increased to 1140~1160 DEG C；(iii), the neutral phase：Under weakly reducing atmosphere, using heating rate as 0.5~1.5 DEG C/min, temperature is increased to 1260~ 1270℃；(iv), second of heat of oxidation：Using heating rate as 0.5~1 DEG C/min, temperature is increased to 1280~1290 DEG C, insulation 1~ After 3h, cease fire immediately, then open wicket and carry out natural cooling, obtain and burn till product for the first time；Step 9：The surface that the first time that in step 8 (iv) step obtains burns till product uniformly applies last layer and helps material, Ran Houfang Enter in kiln and burnt till for the second time, obtain and burn till product for the second time；Step 10：The glaze slip obtained in step 6 is subjected to second of glazing to the product that burn till for the second time obtained in step 9, so It is dried afterwards at 120~150 DEG C, obtains second of semi-finished product, third time is then carried out in kiln is put into burns till, and obtains third time Burn till product；Step 11：Third time is obtained in step 6 and burns till uniform painting last layer protective agent on product, the protective agent is molten Block, protectant preprocess method are：The frit for taking particle diameter to be 80~120 μm, which is put into ball mill, to be ground, grinding 1 ~4h, add appropriate water and carry out wet-milling, 1~3h of wet-milling；Protectant third time will be scribbled burn till product and be put into kiln, carry out Burn till for 4th time, heating rate is 3~5 DEG C/min, and 2~3h are incubated at 900~950 DEG C, directly opens kiln and is cooled down, is obtained Product.
- A kind of 2. preparation method of pottery blue glaze according to claim 1, it is characterised in that：Added in the step 6 The ratio of water and mixed powder a, mixed powder b and powder c mass summations is 1:1.1~1:2.
- A kind of 3. preparation method of pottery blue glaze according to claim 1, it is characterised in that：The pre-burning in the step 4 Heating rate be 2~4 DEG C/min.
- A kind of 4. preparation method of pottery blue glaze according to claim 1, it is characterised in that：Second of firing process It is identical with first time firing process with the third time firing process.
- A kind of 5. preparation method of pottery blue glaze according to claim 1, it is characterised in that：Helped described in addition material with it is described Mixed powder a, mixed powder b and the mass ratio of powder c mass summations are 0.01:1~0.05:1.
- A kind of 6. preparation method of pottery blue glaze according to claim 1, it is characterised in that：It is described to help material by following weight The raw material of number is prepared：40~50 parts of 50~60 parts of frit and calcium carbonate.
- A kind of 7. preparation method of pottery blue glaze according to claim 1, it is characterised in that：The preparation method for helping material By following steps:40~50 parts of progress ball millings of 50~60 parts of frit and calcium carbonate are taken, is put into Muffle furnace and is sintered, place extremely Appropriate water is added after room temperature and carries out wet-milling, wet-milling 2~4h is standby.
- A kind of 8. preparation method of pottery blue glaze according to claim 1, it is characterised in that：The protective agent mixes with described The mass ratio for closing powder a, mixed powder b and powder c mass summations is 0.05~0.1:1.
- A kind of 9. reddish black pottery glaze according to claim 1, it is characterised in that：The melilite, white feldspar, quartz, Calcite, the granularity of fluorite are 10~40 μm.
- A kind of 10. reddish black pottery glaze according to claim 1, it is characterised in that：The frit, plant ash, your blue stone, oxygen It is 20~50 μm to change cobalt, zirconium oxide, zinc oxide, aluminum oxide, the granularity of tin oxide.
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| CN113896422A (en) * | 2021-11-18 | 2022-01-07 | 福建省德化县顺华达瓷业有限责任公司 | Furnace transmutation blue glaze, preparation method thereof and glaze firing method |
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