Daily-use porcelain bottle and production method thereof

Abstract

The present application relates to the technical field of daily-use ceramics, and in particular to a daily-use porcelain bottle and a production method thereof. The process comprises the following steps: slurry preparation, slurry injection, in-mold slurry absorption, empty slurry, consolidation, mold opening, blank repair, drying, blank repair, glazing and firing, wherein the daily-use porcelain bottle is fired together with sanitary ceramics, breaking through the sintering process of daily-use porcelain bottles, improving energy utilization, and realizing large-scale production of daily-use porcelain bottles, with the advantages of low production cost, high efficiency, and stable quality. The obtained daily-use porcelain bottle has a high whiteness greater than 80°, a strength greater than 80MPa, and a water absorption rate less than 0.1%.

Description

Technical Field

[0001] The present application relates to the technical field of daily-use ceramics, and in particular to a daily-use porcelain bottle and a production method thereof. Background Art

[0002] The manufacturing methods of ceramics vary according to different types, performance requirements, and product shapes, sizes, thicknesses, etc. Daily-use porcelain bottles are usually made by hand-throwing, which has the disadvantages of low mass production and poor repeatability. During firing, electric kilns only produce oxidation, poor atmosphere, and lack texture on the glaze. When sanitary ceramics are fired, large residual space is generated due to the large size of the product. Since there are no corresponding small-sized products, a lot of energy is wasted during firing. Summary of the invention

[0003] The purpose of this application is to provide a daily-use porcelain bottle and a production method thereof in response to the deficiencies of the current technology, utilize the remaining space in the sanitary ceramic firing kiln to fire high-white daily-use porcelain bottles, improve energy utilization, and at the same time adopt a grouting process to achieve mass production of daily-use porcelain bottles and solve the problem of consistency in the quality of daily-use porcelain bottles. The obtained high-white daily-use porcelain bottles meet the daily-use porcelain GB / T-3532-2022 standard.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A daily-use porcelain bottle comprises, by mass, 18-22 parts of potassium feldspar, 20-26 parts of porcelain clay, 48-52 parts of white clay, and 4-8 parts of yellow-white clay, wherein the particle sizes of the potassium feldspar, the porcelain clay, the white clay, and the yellow-white clay are less than 200 meshes.

[0006] Preferably, the whiteness value of the daily-use porcelain bottle is ≥80°.

[0007] Preferably, the strength value of daily-use porcelain bottles is ≥80MPa.

[0008] Preferably, the water absorption rate of the daily-use porcelain bottle is ≤0.1%.

[0009] Preferably, the shrinkage rate of the daily-use porcelain bottle is 0.2%-0.5%.

[0010] By adopting the above technical solution, the density of daily-use porcelain bottles can be improved through precise control of the raw materials and their particle size distribution, thereby improving their strength. Potassium feldspar contains potassium and sodium, which has the function of a solvent, can shorten the firing time, can improve the hardness and density of the porcelain bottle, and increase its texture and aesthetics. The porcelain clay has a dense texture and is not easy to penetrate water. It can be made into high-quality porcelain, which can increase the toughness and plasticity of the porcelain bottle, and is not easy to break or deform, and improve its compression resistance and wear resistance; white clay is white in color and has a fine texture, which can improve the light transmittance and whiteness of the porcelain bottle and increase its glossiness; the color of yellow-white clay is about off-white and has a fine texture, which can provide a natural color and a higher saturation for the color of the porcelain bottle. The porcelain bottle made of yellow-white clay is durable, smooth in surface, and comfortable to the touch.

[0011] A method for producing a daily-use porcelain bottle, using the raw materials of the daily-use porcelain bottle, comprises the following steps:

[0012] S1 slurry preparation: by weight, the porcelain bottle blank includes the following components: 18-22 parts of potassium feldspar, 20-26 parts of porcelain mud, 48-52 parts of white mud, and 4-8 parts of yellow and white mud. The weighed raw materials are loaded into a ball mill, and then a proper amount of water is added to wet-grind until the particle size is less than 200 mesh, and the slurry is discharged from the mill, sieved, and iron removed to prepare a slurry for use;

[0013] S2 Preparation of green body of porcelain bottle: Slurry is injected into the plaster model for molding, and the green body of daily-use porcelain bottle is obtained through slurry absorption, emptying of slurry, consolidation, mold opening, blanking, drying, and blanking;

[0014] S3 glazing: spraying a layer of ceramic glaze on the surface of the green body of the porcelain bottle;

[0015] S4 firing: The porcelain bottle sprayed with ceramic glaze is loaded into the sanitary ceramic kiln and sintered together with the sanitary ceramic products. The firing process is: heating up from room temperature to 400-450℃ at a rate of 3-4℃ / min and keeping warm for 30min, then heating up to 900-950℃ at a rate of 4-5℃ / min, and finally heating up to 1220-1240℃ at a rate of 2-3℃ / min and keeping warm for 10-20min to obtain a daily-use porcelain bottle.

[0016] Preferably, in the slurrying step S1, the performance parameters of the slurry are: specific gravity is 1.700kg / L-1.750kg / L, fluidity is 100mL glaze slurry flow time is 40-80 seconds.

[0017] Preferably, in the pulping step S1, the sieving is controlled to be 200 mesh sieving, and the sieve residue is less than 0.1%.

[0018] Preferably, in step S2 of preparing the green porcelain bottle, the time of slurry absorption in the mold is 40-90 minutes.

[0019] By adopting the above technical solution, the time for absorbing the slurry in the mold is 40-90 minutes, which fully absorbs the moisture in the mold and makes the porcelain slurry fully solidified.

[0020] By loading porcelain bottles sprayed with ceramic glaze into the sanitary ceramic kiln and sintering them together with the sanitary ceramic products, the large shape of the sanitary ceramic products can be fully utilized. The remaining space in the kiln can be used to place the porcelain bottles and sinter them together, thus saving a lot of energy. The porcelain bottles are sintered together with the sanitary ceramics using a special formula, achieving a major breakthrough in the sintering process.

[0021] In summary, the beneficial technical effects of this application are:

[0022] 1. This application achieves a major breakthrough in sintering technology and improves energy utilization by adopting a special formula for the porcelain bottle raw materials and sintering them together with sanitary ceramics.

[0023] 2. This application adopts the grouting process to produce daily-use porcelain bottles, realizes the mass production of daily-use porcelain bottles, solves the problem of consistency in the quality of daily-use porcelain bottles, and the obtained high-white daily-use porcelain bottles meet the daily-use porcelain GB / T-3532-2022 standard.

[0024] 3. The daily-use porcelain bottles produced in this application have high strength, with a strength value ≥80MPa and a whiteness ≥80°. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below in conjunction with the examples, but it will be appreciated by those skilled in the art that the following examples are only used to illustrate the present application and should not be considered as limiting the scope of the present application. In the examples, if specific conditions are not specified, they are carried out according to normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0026] Example 1

[0027] A method for producing a daily-use porcelain bottle comprises the following steps:

[0028] S1 slurry preparation: put 18kg of potassium feldspar, 20kg of porcelain mud, 48kg of white mud and 4kg of yellow and white mud into a ball mill, add appropriate amount of water and wet grind until the particle size is less than 200 mesh, discharge the slurry from the mill, sieve and remove iron to make mud for use. The sieving is controlled to be 200 mesh, and the residue on the sieve is less than 0.1%. The performance parameters of the mud are: specific gravity is 1.700kg / L, fluidity is 100mL glaze slurry flow time is 40 seconds.

[0029] S2 Preparation of green body of porcelain bottle: The slurry is injected into the gypsum model for molding, and the green body of daily-use porcelain bottle is obtained through slurry absorption in the mold, empty slurry, consolidation, mold opening, blank repair, drying and blank repair. The time of slurry absorption in the mold is 40 minutes.

[0030] S3 glazing: spraying a layer of ceramic glaze on the surface of the green body of the porcelain bottle;

[0031] S4 firing: The porcelain bottle sprayed with ceramic glaze is loaded into the sanitary ceramic kiln and sintered together with the sanitary ceramic products. The firing process is: heating up from room temperature to 400℃ at a rate of 3℃ / min and keeping warm for 30min, then heating up to 900℃ at a rate of 5℃ / min, and finally heating up to 1220℃ at a rate of 2℃ / min and keeping warm for 20min to obtain a daily-use porcelain bottle.

[0032] Example 2

[0033] A method for producing a daily-use porcelain bottle comprises the following steps:

[0034] S1 slurry preparation: put 22kg of potassium feldspar, 26kg of porcelain mud, 52kg of white mud and 8kg of yellow and white mud into a ball mill, add appropriate amount of water and wet grind until the particle size is less than 200 mesh, discharge the slurry from the mill, sieve and remove iron to make mud for use. The sieving is controlled to be 200 mesh, and the residue on the sieve is less than 0.1%. The performance parameters of the mud are: specific gravity is 1.750kg / L, fluidity is 80 seconds for 100mL glaze slurry flow time.

[0035] S2 Preparation of green body of porcelain bottle: The slurry is injected into the gypsum model for molding, and the green body of daily-use porcelain bottle is obtained through slurry absorption in the mold, empty slurry, consolidation, mold opening, blank repair, drying and blank repair. The time of slurry absorption in the mold is 90 minutes.

[0036] S3 glazing: spraying a layer of ceramic glaze on the surface of the green body of the porcelain bottle;

[0037] S4 firing: The porcelain bottle sprayed with ceramic glaze is loaded into the sanitary ceramic kiln and sintered together with the sanitary ceramic products. The firing process is: heating up from room temperature to 450°C at a rate of 4°C / min and keeping warm for 30 minutes, then heating up to 950°C at a rate of 5°C / min, and finally heating up to 1240°C at a rate of 3°C / min and keeping warm for 10 minutes to obtain a daily-use porcelain bottle.

[0038] Example 3

[0039] A method for producing a daily-use porcelain bottle comprises the following steps:

[0040] S1 slurry preparation: put 20kg of potassium feldspar, 23kg of porcelain mud, 50kg of white mud and 6kg of yellow and white mud into a ball mill, add appropriate amount of water and wet grind until the particle size is less than 200 mesh, discharge the slurry from the mill, sieve and remove iron to make mud for use. The sieving is controlled to be 200 mesh, and the residue on the sieve is less than 0.1%. The performance parameters of the mud are: specific gravity is 1.730kg / L, fluidity is 100mL glaze slurry flow time is 60 seconds.

[0041] S2 Preparation of green body of porcelain bottle: The slurry is injected into the gypsum model for molding, and the green body of daily-use porcelain bottle is obtained through slurry absorption in the mold, empty slurry, consolidation, mold opening, blank repair, drying and blank repair. The time of slurry absorption in the mold is 70 minutes.

[0042] S3 glazing: spraying a layer of ceramic glaze on the surface of the green body of the porcelain bottle;

[0043] S4 firing: The porcelain bottle sprayed with ceramic glaze is loaded into the sanitary ceramic kiln and sintered together with the sanitary ceramic products. The firing process is: increase the temperature from room temperature to 430℃ at a rate of 3.5℃ / min and keep warm for 30min, then increase the temperature to 930℃ at a rate of 4.5℃ / min, and finally increase the temperature to 1230℃ at a rate of 2.5℃ / min and keep warm for 15min to obtain a daily-use porcelain bottle.

[0044] Comparative Example 1

[0045] The same as Example 3, except that the amount of white mud added is 43 kg.

[0046] Comparative Example 2

[0047] The same as Example 3, except that the amount of white mud added is 55 kg.

[0048] Performance Testing

[0049] The daily-use porcelain bottles in Examples 1-3 and Comparative Examples 1-2 were sampled and tested, and the test results are shown in Table 1.

[0050] Strength: Determined in accordance with GB / T 8488-2008 “Test method for compressive strength of ceramic products”.

[0051] Whiteness value: Whiteness value was measured by whiteness meter, with GSB A67002-86 ceramic standard white plate as the standard plate.

[0052] Water absorption rate: The water absorption rate of daily-use porcelain is measured using the GB / T 3299-2011 standard.

[0053] Shrinkage rate: Place the porcelain bottle before and after firing on a standard pattern or target, and calculate the shrinkage rate by visually measuring the deformation or offset distance of the pattern.

[0054] Table 1

[0055] Whiteness / ° Water absorption / % Strength / MPa Shrinkage / % Preparation Example 1 81 0.09 81 0.5 Preparation Example 2 89 0.05 92 0.3 Preparation Example 3 85 0.03 86 0.2 Comparative Example 1 49 0.2 83 0.3 Comparative Example 2 86 0.15 82 0.2

[0056] As can be seen from Table 1, the whiteness value of the daily-use porcelain bottle of the present application is greater than 80°, the water absorption rate is less than 0.1%, the strength is greater than 80 MPa, and the shrinkage rate is 0.2-0.5%.

[0057] From Comparative Example 1, it can be seen that when the amount of white mud added is reduced from 50kg to 43kg, the whiteness value of the daily-use porcelain bottle is reduced from 85° to 49°, and the whiteness value is greatly reduced.

[0058] From Comparative Example 2, it can be seen that when the amount of white mud added increases from 50kg to 55kg, the whiteness value of daily-use porcelain bottles decreases from 85° to 86°, and the whiteness value increases by 1°, which is a small increase.

[0059] The above embodiments are only used to explain the technical solutions of the present invention rather than to limit the same. Although the above embodiments specifically describe the present invention, relevant technical personnel should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications and equivalent replacements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A method for producing a daily-use porcelain bottle, characterized in that: The following steps are involved: S1 slurry preparation: the raw materials for preparing the porcelain bottle blank are composed of the following components by weight: 18-22 parts of potassium feldspar, 20-26 parts of porcelain mud, 48-52 parts of white mud, and 4-8 parts of yellow and white mud. The weighed raw materials are loaded into a ball mill, and then a proper amount of water is added to wet-grind until the particle size is less than 200 mesh, and the slurry is discharged from the mill, sieved, and iron removed to prepare a slurry for use; S2 Preparation of green body of porcelain bottle: Slurry is injected into the gypsum model, and the green body of daily-use porcelain bottle is obtained through slurry absorption, emptying of slurry, consolidation, mold opening, blanking, drying, and blanking; S3 glazing: spraying a layer of ceramic glaze on the surface of the green body of the porcelain bottle; S4 Firing: The porcelain bottle sprayed with ceramic glaze is placed in a sanitary ceramic kiln and sintered together with the sanitary ceramic product. The firing process is: heating from room temperature to 400-450°C at a heating rate of 3-4°C / min and keeping warm for 30min, then heating to 900-950°C at a heating rate of 4-5°C / min, and finally heating to 1220-1240°C at a heating rate of 2-3°C / min and keeping warm for 10-20min to obtain a daily-use porcelain bottle; In the step S1 of slurry preparation, the performance parameters of the slurry are: specific gravity is 1.700kg / L-1.750kg / L, fluidity is 100mL glaze slurry flow time is 40-80 seconds; In the pulping step S1, the sieving is controlled to be 200 mesh sieving, and the sieve residue is less than 0.1%; In step S2 of preparing the green porcelain bottle, the time of slurry absorption in the mold is 40-90 minutes; The particle sizes of the potassium feldspar, the porcelain clay, the white clay, and the yellow and white clay are less than 200 meshes.

2. The method for producing a daily-use porcelain bottle according to claim 1, characterized in that: The whiteness value of the daily-use porcelain bottle is ≥80°.

3. The method for producing a daily-use porcelain bottle according to claim 1, characterized in that: The compressive strength value of the daily-use porcelain bottle is ≥80MPa.

4. The method for producing a daily-use porcelain bottle according to claim 1, characterized in that: The water absorption rate of the daily-use porcelain bottle is ≤0.1%.

5. The method for producing a daily-use porcelain bottle according to claim 1, characterized in that: The shrinkage rate of the daily-use porcelain bottle is 0.2%-0.5%.