Thin-body ceramic artware and thin-body manufacturing process thereof

Abstract

The invention relates to the technical field of thin-body ceramics, in particular to a thin-body ceramic handicraft and a thin-body manufacturing process thereof.The thin-body ceramic handicraft comprises the following steps that a green body is prepared, specifically, 30-40 parts by weight of kaolin, 20-30 parts by weight of dolomite, 5-8 parts by weight of aluminum oxide and 4-7 parts by weight of a modified calcined talc agent are blended and subjected to wet ball milling, then slip casting and fettling are conducted, biscuit firing is conducted for 1 h at the temperature of 500-550 DEG C, and the green body is obtained; and a thin tire blank with the thickness of 1 mm is obtained. According to the blank thinning process, the blank body is firstly manufactured, then the glaze slip is coated, kaolin, dolomite and aluminum oxide are used as matrixes in the blank body preparation process, and a modified calcined talc agent is added as a functional auxiliary agent, so that the light transmittance, the impact strength, the moisture resistance and the heat-resistant stability of the product are optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of thin-walled ceramics, and particularly relates to a thin-walled ceramic handicraft and a manufacturing process for its thin wall. Background Art

[0002] Common thin-walled ceramic handicrafts include vases, lamp shades, tea sets, pen holders, etc. They are light and elegant in shape, exquisitely decorated, perfectly combining the practicality and artistry of ceramics, and having high ornamental and collection values. In order to optimize the light transmittance of existing thin-walled ceramics, the impact resistance and stain resistance of the products are easily reduced. At the same time, the products have poor moisture resistance and heat stability, which limits the use efficiency of the products. Summary of the Invention

[0003] Aiming at the defects of the prior art, the purpose of the present invention is to provide a thin-walled ceramic handicraft and a manufacturing process for its thin wall to solve the problems raised in the above background art.

[0004] The present invention adopts the following technical solutions to solve the technical problems: The present invention provides a manufacturing process for the thin wall of a thin-walled ceramic handicraft, including the following steps: Step 1, preparing a blank: Mix 30 - 40 parts of kaolin, 20 - 30 parts of dolomite, 5 - 8 parts of alumina, and 4 - 7 parts of modified calcined talc agent by weight and wet ball mill them. Then, perform slip casting, trimming the blank, and subject it to biscuit firing at 500 - 550 °C for 1 h to obtain a thin-walled blank with a thickness of 1 mm. Step 2, mix 35 - 40 parts of porcelain clay, 10 - 15 parts of potassium feldspar, 5 - 8 parts of quartz, and 5 - 8 parts of a blending agent by weight and wet ball mill them to obtain a glaze slurry. Step 3, coat the glaze slurry on the surface of the thin-walled blank to form a glaze layer with a thickness of 20 µm, and finally perform sintering treatment to obtain the thin-walled ceramic handicraft.

[0005] Preferably, the sintering temperature of the sintering treatment is 1320 °C, and the sintering time is 12 h.

[0006] Preferably, the preparation method of the modified calcined talc agent is as follows: S1: Blend a yttrium nitrate solution with a mass fraction of 2 - 4%, sodium alginate, and a sodium silicate solution with a mass fraction of 5 - 8% in a weight ratio of (2 - 4):3:(4 - 6) and mix them evenly to obtain a yttrium-sodium alginate body. S2: Blend 3 - 5 parts of barium oxide, 2 - 3 parts of boron oxide, and 3 - 5 parts of zirconium oxide by weight and mix them evenly, and then perform thermal sintering at 235 - 245 °C for 2 h to obtain a composite body. Add the composite body to the yttrium-sodium alginate body in a weight ratio of 3:5 and stir evenly to obtain a composite modified body. S3: Stir the calcined talc in a composite modifier that is 3 - 5 times the total weight of the calcined talc. After stirring, a composite liquid modified based on the calcined talc is obtained. S4: Ball - mill the composite liquid modified based on the calcined talc and the strontium titanate ball - milled body at a weight ratio of 7:5. After ball - milling, perform suction filtration and drying to obtain the modified calcined talc agent.

[0007] Preferably, the stirring speed of the stirring treatment in S3 is 550 - 750 r / min, and the stirring time is 2 h; the ball - milling speed of the ball - milling treatment in S4 is 1500 - 1800 r / min, and the ball - milling time is 2 h.

[0008] Preferably, the preparation method of the strontium titanate ball - milled body is as follows: Mix 4 - 6 parts of strontium titanate, 1 - 2 parts of nano - silica sol, and 5 - 8 parts of dopamine hydrochloride solution by weight to obtain a strontium titanate liquid. Add 2 - 4 parts of cordierite powder and 1 - 3 parts of silica powder by weight to 5 - 8 parts of the strontium titanate liquid, stir evenly, then perform suction filtration and drying to obtain the strontium titanate ball - milled body.

[0009] Preferably, the mass fraction of the dopamine hydrochloride solution is 2 - 5%.

[0010] Preferably, the preparation method of the conditioner is as follows: S11: Irradiate titanium oxide in a proton irradiation chamber for 1 h with an irradiation power of 350 - 400 W. After irradiation, the irradiated titanium oxide is obtained. S12: Stir and adjust the irradiated titanium oxide and the adjusting liquid at a weight ratio of 3:5, perform suction filtration and drying to obtain the conditioner. Among them, the preparation method of the adjusting liquid is as follows: S12a: Mix 2 - 3 parts of sodium carboxymethylcellulose, 7 - 11 parts of lanthanum chloride solution, and 3 - 5 parts of zinc oxide by weight to obtain a sodium carboxymethylcellulose liquid. S12b: Add 2 - 3 parts of wollastonite and 1 - 3 parts of sericite powder by weight to 5 - 8 parts of the sodium carboxymethylcellulose liquid, stir evenly to obtain the adjusting liquid.

[0011] Preferably, the stirring speed of the stirring and adjusting treatment is 350 - 400 r / min, and the stirring time is 1 h.

[0012] Preferably, the mass fraction of the lanthanum chloride solution is 4 - 6%.

[0013] The present invention also provides a thin - walled ceramic handicraft, which is made by the thin - wall production process of the above - mentioned thin - walled ceramic handicraft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the thin-walled process of the present invention, the green body is first fabricated and then coated with glaze slurry. In the preparation of the green body, kaolin, dolomite, and alumina are used as the matrix, and a modified calcined talc agent is added as a functional additive to optimize the light transmittance, impact resistance, moisture resistance, and heat stability of the product. The glaze slurry is made of porcelain clay, potassium feldspar, quartz, and a blending agent. Through the coordination of raw materials, the stain resistance of the product is further optimized, as well as the coordination of light transmittance and impact resistance, while improving the performance stability of the product. 2. The modified calcined talc agent is prepared by mixing calcined talc with a composite modifier and then optimizing and improving through stirring. The composite modifier is sintered and improved with barium oxide, boron oxide, and zirconium oxide, and then optimized and improved through stirring with a yttrium-sodium alginate body. The yttrium nitrate solution, sodium alginate, and sodium silicate solution in the yttrium-sodium alginate body can be coordinated to enhance the light transmittance of the system and optimize the performance stability of the product. 3. The strontium titanate ball-milling body is optimized and improved by mixing cordierite powder, silica powder, and strontium titanate solution. The strontium titanate, nano-silica sol, and dopamine hydrochloride solution in the strontium titanate solution are coordinated and optimized. Through the co-allocation and coordination of raw materials, the prepared strontium titanate ball-milling body and the composite solution based on calcined talc modification are mutually optimized and improved, so that the modified calcined talc agent further enhances the performance coordination and performance stability of the system. 4. The blending agent is prepared by proton-irradiating titanium oxide and then stirring and adjusting it with a regulating solution. The wollastonite, sericite powder, and sodium carboxymethylcellulose solution in the regulating solution are coordinated and optimized. The sodium carboxymethylcellulose, lanthanum chloride solution, and zinc oxide in the sodium carboxymethylcellulose solution are coordinated and optimized. Through the co-allocation and co-assistance of raw materials, the prepared regulating solution can better improve titanium oxide, and thus the blending agent and the modified calcined talc agent can be better coordinated, further improving the performance of the product. Specific Embodiment

[0015] The following describes the technical solutions in the embodiments of the present invention clearly and completely in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0016] The thin-walled manufacturing process of a thin-walled ceramic handicraft in this embodiment includes the following steps: Step 1, preparing the green body: Mix 30 - 40 parts of kaolin, 20 - 30 parts of dolomite, 5 - 8 parts of alumina, and 4 - 7 parts of modified calcined talc agent by weight in a wet ball-milling process, then perform slip casting, trimming, and then biscuit firing at 500 - 550 °C for 1 h to obtain a thin-walled green body with a thickness of 1 mm. Step 2: Blend 35 - 40 parts by weight of kaolin, 10 - 15 parts of potassium feldspar, 5 - 8 parts of quartz, and 5 - 8 parts of a blending agent and perform wet ball milling to obtain a glaze slurry. Step 3: Coat the glaze slurry on the surface of the thin - walled blank to form a glaze layer with a thickness of 20 µm, and finally perform sintering treatment to obtain a thin - walled ceramic handicraft.

[0017] In this embodiment, the sintering temperature for the sintering treatment is 1320 °C and the sintering time is 12 h.

[0018] The preparation method of the modified talc - calcined agent in this embodiment is as follows: S1: Blend a yttrium nitrate solution with a mass fraction of 2 - 4%, sodium alginate, and a sodium silicate solution with a mass fraction of 5 - 8% evenly according to a weight ratio of (2 - 4):3:(4 - 6) to obtain a yttrium - sodium alginate body. S2: Blend 3 - 5 parts by weight of barium oxide, 2 - 3 parts of boron oxide, and 3 - 5 parts of zirconium oxide evenly, and then perform thermal sintering at 235 - 245 °C for 2 h to obtain a composite body. Add the composite body to the yttrium - sodium alginate body according to a weight ratio of 3:5 and stir evenly to obtain a composite modified body. S3: First, stir - process the calcined talc in a composite modified body that is 3 - 5 times the total weight of the calcined talc. After stirring, a composite liquid modified based on calcined talc is obtained. S4: Perform ball milling on the composite liquid modified based on calcined talc and the strontium titanate ball - milling body according to a weight ratio of 7:5. After ball milling, perform suction filtration and drying to obtain a modified talc - calcined agent.

[0019] In S3 of this embodiment, the stirring speed for the stirring treatment is 550 - 750 r / min and the stirring time is 2 h; in S4, the ball - milling speed for the ball - milling treatment is 1500 - 1800 r / min and the ball - milling time is 2 h.

[0020] The preparation method of the strontium titanate ball - milling body in this embodiment is as follows: Blend 4 - 6 parts by weight of strontium titanate, 1 - 2 parts of nano - silica sol, and 5 - 8 parts of hydrochloric acid dopamine solution evenly to obtain a strontium titanate liquid. Add 2 - 4 parts by weight of cordierite powder and 1 - 3 parts of silica powder to 5 - 8 parts of the strontium titanate liquid and stir evenly, then perform suction filtration and drying to obtain a strontium titanate ball - milling body.

[0021] The mass fraction of the hydrochloric acid dopamine solution in this embodiment is 2 - 5%.

[0022] The preparation method of the blending agent in this embodiment is as follows: S11: Place titanium oxide in a proton irradiation chamber for irradiation for 1 h with an irradiation power of 350 - 400 W. After irradiation, irradiated titanium oxide is obtained. S12: stirring and adjusting the irradiated titanium oxide and the adjusting liquid in a weight ratio of 3:5, filtering and drying to obtain a conditioning agent; The preparation method of the regulating solution is as follows: S12a: uniformly mixing 2-3 parts of sodium carboxymethyl cellulose, 7-11 parts of lanthanum chloride solution and 3-5 parts of zinc oxide by weight to obtain sodium carboxymethyl cellulose solution; S12b: 2-3 parts of wollastonite and 1-3 parts of sericite powder are mixed by weight and added into 5-8 parts of sodium carboxymethyl cellulose solution and stirred evenly to obtain a regulating solution.

[0023] The stirring speed of the stirring adjustment process in this embodiment is 350-400 r / min, and the stirring time is 1 hour.

[0024] The mass fraction of the lanthanum chloride solution of the present embodiment is 4-6%.

[0025] The thin-body ceramic handicraft of the present embodiment is made by the thin-body making process of the thin-body ceramic handicraft.

[0026] Embodiment 1: A thin-body manufacturing process for a thin-body ceramic handicraft, comprising the following steps: Step 1: preparing the green body: 30 parts of kaolin, 20 parts of dolomite, 5 parts of alumina and 4 parts of modified calcined talc are mixed and wet-milled by weight, then slip-casted, trimmed, and then bisque-fired at 500° C. for 1 hour to obtain a thin tire body with a thickness of 1 mm; Step 2: 35 parts of china clay, 10 parts of potassium feldspar, 5 parts of quartz and 5 parts of a blending agent are mixed by wet ball milling to obtain a glaze slurry; Step three, coating the glaze slurry onto the surface of the thin-body green body to form a glaze layer with a thickness of 20µm, and finally sintering to obtain a thin-body ceramic handicraft.

[0027] The sintering temperature of the sintering process in this embodiment is 1320° C., and the sintering time is 12 hours.

[0028] The preparation method of the modified burned talc agent of this embodiment is: S1: 2% by mass yttrium nitrate solution, sodium alginate and 5-8% by mass sodium silicate solution are uniformly mixed in a weight ratio of 2:3:4 to obtain yttrium-sodium alginate body; S2: 3 parts of barium oxide, 2 parts of boron oxide and 3 parts of zirconium oxide are mixed uniformly by weight, and then sintered at 235° C. for 2 h to obtain a composite; The composite was added into the yttrium-sodium alginate body at a weight ratio of 3:5 and stirred evenly to obtain a composite modified body; S3: Stir the calcined talc in a composite modifier that is 3 times the total weight of the calcined talc. After stirring, a composite liquid modified based on the calcined talc is obtained. S4: Ball-mill the composite liquid modified based on the calcined talc and the strontium titanate ball-milling body in a weight ratio of 7:5. After ball-milling, perform suction filtration and drying to obtain a modified calcined talc agent.

[0029] In step S3 of this embodiment, the stirring speed of the stirring treatment is 550 r / min, and the stirring time is 2 h; in step S4, the ball-milling speed of the ball-milling treatment is 1500 r / min, and the ball-milling time is 2 h.

[0030] The preparation method of the strontium titanate ball-milling body in this embodiment is as follows: Mix 4 parts of strontium titanate, 1 part of nano-silica sol, and 5 parts of hydrochloric acid dopamine solution by weight to obtain a strontium titanate liquid. Add 2 parts of cordierite powder and 1 part of silica powder by weight to 5 parts of the strontium titanate liquid and stir evenly, then perform suction filtration and drying to obtain a strontium titanate ball-milling body.

[0031] The mass fraction of the hydrochloric acid dopamine solution in this embodiment is 2%.

[0032] The preparation method of the conditioner in this embodiment is as follows: S11: Place the titanium oxide in a proton irradiation chamber and irradiate it for 1 h with an irradiation power of 350 W. After irradiation, the irradiated titanium oxide is obtained. S12: Stir and adjust the irradiated titanium oxide and the adjusting liquid in a weight ratio of 3:5, perform suction filtration and drying to obtain a conditioner. Among them, the preparation method of the adjusting liquid is as follows: S12a: Mix 2 parts of sodium carboxymethyl cellulose, 7 parts of lanthanum chloride solution, and 3 parts of zinc oxide by weight to obtain a sodium carboxymethyl cellulose liquid. S12b: Add 2 parts of wollastonite and 1 part of sericite powder by weight to 5 parts of the sodium carboxymethyl cellulose liquid and stir evenly to obtain an adjusting liquid.

[0033] In this embodiment, the stirring speed of the stirring and adjusting treatment is 350 r / min, and the stirring time is 1 h.

[0034] The mass fraction of the lanthanum chloride solution in this embodiment is 4%.

[0035] A thin-walled ceramic handicraft of this embodiment is made by the thin-walled production process of the thin-walled ceramic handicraft.

[0036] Example 2: A thin-walled production process of a thin-walled ceramic handicraft, including the following steps: Step 1, prepare a blank: Mix 40 parts of kaolin, 30 parts of dolomite, 8 parts of alumina and 7 parts of modified calcined talc agent by weight, and wet ball mill them. Then, perform slip casting, trimming, and bisque fire at 550 °C for 1 h to obtain a thin-walled blank with a thickness of 1 mm. Step 2: Mix 40 parts of porcelain clay, 15 parts of potassium feldspar, 8 parts of quartz and 8 parts of a blending agent by weight, and wet ball mill them to obtain a glaze slurry. Step 3: Coat the glaze slurry on the surface of the thin-walled blank to form a glaze layer with a thickness of 20 µm, and finally perform sintering treatment to obtain a thin-walled ceramic handicraft.

[0037] In this example, the sintering temperature for the sintering treatment is 1320 °C and the sintering time is 12 h.

[0038] The preparation method of the modified calcined talc agent in this example is as follows: S1: Blend a yttrium nitrate solution with a mass fraction of 4%, sodium alginate and a sodium silicate solution with a mass fraction of 5 - 8% evenly according to a weight ratio of 4:3:6 to obtain a yttrium-sodium alginate body. S2: Blend 5 parts of barium oxide, 3 parts of boron oxide and 5 parts of zirconium oxide evenly by weight, and then perform thermal sintering at 245 °C for 2 h to obtain a composite body. Add the composite body to the yttrium-sodium alginate body according to a weight ratio of 3:5 and stir evenly to obtain a composite modified body. S3: First, stir the calcined talc in a composite modified body that is 5 times the total weight of the calcined talc. After stirring, obtain a composite liquid modified based on calcined talc. S4: Ball mill the composite liquid modified based on calcined talc and a strontium titanate ball mill body according to a weight ratio of 7:5. After ball milling, perform suction filtration and drying to obtain the modified calcined talc agent.

[0039] In S3 of this example, the stirring speed for the stirring treatment is 750 r / min and the stirring time is 2 h; in S4, the ball milling speed for the ball milling treatment is 1800 r / min and the ball milling time is 2 h.

[0040] The preparation method of the strontium titanate ball mill body in this example is as follows: Blend 6 parts of strontium titanate, 2 parts of nano-silica sol and 8 parts of dopamine hydrochloride solution evenly by weight to obtain a strontium titanate liquid. Add 4 parts of cordierite powder and 3 parts of silica powder by weight to 8 parts of the strontium titanate liquid and stir evenly, then perform suction filtration and drying to obtain the strontium titanate ball mill body.

[0041] In this example, the mass fraction of the dopamine hydrochloride solution is 5%.

[0042] The preparation method of the blending agent in this example is as follows: S11: Place titanium oxide in a proton irradiation chamber and irradiate it for 1 h at an irradiation power of 400 W. After the irradiation ends, the irradiated titanium oxide is obtained. S12: Stir and adjust the irradiated titanium oxide and the adjusting solution in a weight ratio of 3:5, then perform suction filtration and drying to obtain a conditioner. The preparation method of the adjusting solution is as follows: S12a: Blend 3 parts of sodium carboxymethylcellulose, 11 parts of lanthanum chloride solution, and 5 parts of zinc oxide by weight to obtain a sodium carboxymethylcellulose solution. S12b: Blend 3 parts of wollastonite and 3 parts of sericite powder by weight and add them to 8 parts of the sodium carboxymethylcellulose solution, then stir evenly to obtain the adjusting solution.

[0043] In this example, the stirring speed for the stirring and adjusting treatment is 400 r / min, and the stirring time is 1 h.

[0044] In this example, the mass fraction of the lanthanum chloride solution is 6%.

[0045] A thin-walled ceramic handicraft in this example is made by the thin-walled manufacturing process of the thin-walled ceramic handicraft described above.

[0046] Example 3: A thin-walled manufacturing process of a thin-walled ceramic handicraft, including the following steps: Step 1, prepare a blank: Blend 35 parts of kaolin, 25 parts of dolomite, 6.5 parts of alumina, and 5.5 parts of modified calcined talc agent by weight, then perform wet ball milling, followed by slip casting, trimming the blank, and then subjecting it to biscuit firing at 525 °C for 1 h to obtain a thin-walled blank with a thickness of 1 mm. Step 2, blend 37.5 parts of porcelain clay, 12.5 parts of potassium feldspar, 6.5 parts of quartz, and 5 - 8 parts of conditioner by weight and perform wet ball milling to obtain a glaze slurry. Step 3, coat the glaze slurry on the surface of the thin-walled blank to form a glaze layer with a thickness of 20 µm, and finally perform sintering treatment to obtain a thin-walled ceramic handicraft.

[0047] In this example, the sintering temperature for the sintering treatment is 1320 °C, and the sintering time is 12 h.

[0048] The preparation method of the modified calcined talc agent in this example is as follows: S1: Blend a yttrium nitrate solution with a mass fraction of 3%, sodium alginate, and a sodium silicate solution with a mass fraction of 6.5% in a weight ratio of 3:3:5 to obtain a yttrium-sodium alginate body. S2: Blend 4 parts of barium oxide, 2.5 parts of boron oxide, and 4 parts of zirconium oxide by weight, and then perform thermal sintering at 240 °C for 2 h to obtain a composite body. The composite is added to the yttrium-sodium alginate body according to a weight ratio of 3:5 and stirred evenly to obtain a composite modified body; S3: Talc is stirred in a composite modified body 4 times the total weight of the talc. After stirring, a composite liquid modified based on talc is obtained; S4: The composite liquid modified based on talc and strontium titanate ball-milling body are ball-milled according to a weight ratio of 7:5. After ball-milling, filtration and drying are carried out to obtain a modified talc agent.

[0049] In S3 of this example, the stirring speed of the stirring treatment is 600 r / min, and the stirring time is 2 h; in S4, the ball-milling speed of the ball-milling treatment is 1650 r / min, and the ball-milling time is 2 h.

[0050] The preparation method of the strontium titanate ball-milling body in this example is as follows: 5 parts of strontium titanate, 1.5 parts of nano-silica sol and 6.5 parts of hydrochloric acid dopamine solution are blended evenly by weight to obtain a strontium titanate solution; 3 parts of cordierite powder and 2 parts of silica powder are added to 6.5 parts of the strontium titanate solution by weight and stirred evenly, and then filtered and dried to obtain a strontium titanate ball-milling body.

[0051] The mass fraction of the hydrochloric acid dopamine solution in this example is 2-5%.

[0052] The preparation method of the conditioner in this example is as follows: S11: Titanium oxide is irradiated in a proton irradiation box for 1 h, and the irradiation power is 350-400 W. After irradiation, irradiated titanium oxide is obtained; S12: The irradiated titanium oxide and the adjusting liquid are stirred and adjusted according to a weight ratio of 3:5, filtered and dried to obtain a conditioner; Among them, the preparation method of the adjusting liquid is as follows: S12a: 2.5 parts of sodium carboxymethylcellulose, 9 parts of lanthanum chloride solution and 4 parts of zinc oxide are blended evenly by weight to obtain a sodium carboxymethylcellulose solution; S12b: 2.5 parts of wollastonite and 2 parts of sericite powder are blended and added to 6.5 parts of the sodium carboxymethylcellulose solution by weight and stirred evenly to obtain an adjusting liquid.

[0053] In this example, the stirring speed of the stirring and adjusting treatment is 370 r / min, and the stirring time is 1 h.

[0054] The mass fraction of the lanthanum chloride solution in this example is 5%.

[0055] A thin-walled ceramic handicraft in this example is made by the thin-walled production process of the thin-walled ceramic handicraft.

[0056] Comparative Example 1: It is different from Example 3 in that the modified pyrophyllite agent is not added.

[0057] Comparative Example 2: It is different from Example 3 in that the composite liquid based on pyrophyllite modification is not added during the preparation of the modified pyrophyllite agent.

[0058] Comparative Example 3: It is different from Example 3 in that the composite body is not added during the preparation of the composite liquid based on pyrophyllite modification.

[0059] Comparative Example 4: It is different from Example 3 in that boron oxide and zirconium oxide are not added to the composite body.

[0060] Comparative Example 5: It is different from Example 3 in that the yttrium-sodium alginate body is not added during the preparation of the composite liquid based on pyrophyllite modification.

[0061] Comparative Example 6: It is different from Example 3 in that sodium alginate and a sodium silicate solution with a mass fraction of 6:5% are not added to the yttrium-sodium alginate body.

[0062] Comparative Example 7: It is different from Example 3 in that the strontium titanate ball-milled body is not added during the preparation of the modified pyrophyllite agent.

[0063] Comparative Example 8: It is different from Example 3 in that the blending agent is not added.

[0064] Comparative Example 9: It is different from Example 3 in that the regulating liquid is not added during the preparation of the blending agent.

[0065] Comparative Example 10: It is different from Example 3 in that wollastonite and sericite powder are not added to the regulating liquid.

[0066] Comparative Example 11: It is different from Example 3 in that zinc oxide and sodium carboxymethylcellulose are not added to the regulating liquid.

[0067] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were subjected to tests on light transmittance, impact resistance, and stain resistance under normal conditions and under moisture-resistant and heat-resistant conditions. The moisture-resistant and heat-resistant conditions were to place the products under a humidity condition of 10% for 24 h, and then place them at 70 °C for 24 h. The above was one cycle, and the cycle test was carried out 10 times. The test results are shown in Table 1.

[0068] Table 1 Test results of the products of Examples 1 to 3 and Comparative Examples 1 to 11: It can be seen from Comparative Examples 1-11 and Examples 1-3 that the product of Example 3 has excellent light transmittance, impact strength, and stain resistance, and the three can be coordinately improved. In addition, the product has excellent moisture resistance and heat stability; It can be seen from Comparative Examples 1-11 and Example 3 that when one of the modified pyrophyllite agent or the conditioner is not added in the present invention, the performance of the product deteriorates significantly, especially under the conditions of moisture resistance and heat resistance, the performance deterioration is more obvious; When the composite liquid based on pyrophyllite modification is not added during the preparation of the modified pyrophyllite agent, the composite body is not added during the preparation of the composite liquid based on pyrophyllite modification, boron oxide and zirconium oxide are not added to the composite body, the yttrium-sodium alginate body is not added during the preparation of the composite liquid based on pyrophyllite modification, sodium alginate and sodium silicate solution with a mass fraction of 6.5% are not added to the yttrium-sodium alginate body, and the strontium titanate ball mill body is not added during the preparation of the modified pyrophyllite agent, the performance of the product shows a deteriorating trend to varying degrees; Not adding the yttrium-sodium alginate body during the preparation of the composite liquid based on pyrophyllite modification has a greater impact on the light transmittance of the product. When the strontium titanate ball mill body is not added during the preparation of the modified pyrophyllite agent, the performance of the product deteriorates more significantly. At the same time, the composite liquid based on pyrophyllite modification prepared by combining the yttrium-sodium alginate body and the composite body obtained by the specific method of the present invention has the most significant performance effect, and using other methods instead is not as obvious as the effect of the present invention; When the regulating liquid is not added during the preparation of the conditioner, wollastonite and sericite powder are not added to the regulating liquid, and zinc oxide and sodium carboxymethylcellulose are not added to the regulating liquid, the performance of the product shows a deteriorating trend to varying degrees. The regulating liquid obtained by the specific method of the present invention has the most obvious performance effect.

[0069] The present invention further explores the product performance through the preparation of the strontium titanate ball mill body.

[0070] Experimental Example 1: Same as Example 3, except that cordierite powder is not added during the preparation of the strontium titanate ball mill body.

[0071] Experimental Example 2: Same as Example 3, except that silica powder is not added during the preparation of the strontium titanate ball mill body.

[0072] Experimental Example 3: Same as Example 3, except that strontium titanate and nano-silica sol are not added to the strontium titanate solution.

[0073] Experimental Example 4: Same as Example 3, except that water is used instead of the dopamine hydrochloride solution.

[0074] The products of Experimental Examples 1 to 4 were tested for light transmittance, impact resistance, and stain resistance under normal conditions and under moisture-resistant and heat-resistant conditions. The moisture-resistant and heat-resistant conditions were as follows: the product was placed under a humidity condition of 10% for 24 h, and then placed at 70 °C for 24 h. The above was one cycle, and the cycle test was carried out 10 times. The test results are shown in Table 2.

[0075] Table 2 Test results of the products of Experimental Examples 1 to 4: It can be seen from Experimental Examples 1-4 that when silica powder was not added in the preparation of strontium titanate by ball milling, the light transmittance performance of the product deteriorated significantly. When cordierite powder was not added in the preparation of strontium titanate by ball milling, the change in impact resistance was significant. When strontium titanate and nano-silica sol were not added to the strontium titanate solution, the strength, light transmittance, and stain resistance of the product all showed a deteriorating trend. When water was used instead of the dopamine hydrochloride solution, the performance of the product also showed a deteriorating trend. Therefore, for the strontium titanate ball mill prepared by the specific method of the present invention, the performance effect of the product is the most significant, and the use of other methods instead is not as obvious as the effect of the present invention.

[0076] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0077] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thin body manufacturing process for thin body ceramic handicrafts, characterized in that, It includes the following steps: Step 1, preparing a green body: Mix 30 - 40 parts by weight of kaolin, 20 - 30 parts by weight of dolomite, 5 - 8 parts by weight of alumina, and 4 - 7 parts by weight of a modified pyrophyllite agent, and wet ball mill them. Then, perform slip casting, trimming the green body, and then biscuit fire at 500 - 550 °C for 1 h to obtain a thin-walled green body with a thickness of 1 mm; Step 2, mix 35 - 40 parts by weight of porcelain clay, 10 - 15 parts by weight of potassium feldspar, 5 - 8 parts by weight of quartz, and 5 - 8 parts by weight of a conditioner, and wet ball mill them to obtain a glaze slurry; Step 3, coat the glaze slurry on the surface of the thin-walled green body to form a glaze layer with a thickness of 20 µm, and finally perform sintering treatment to obtain a thin-walled ceramic handicraft.

2. The thin-wall manufacturing process of a thin-wall ceramic handicraft according to claim 1, characterized in that, The sintering temperature of the sintering treatment is 1320 °C, and the sintering time is 12 h.

3. The thin body manufacturing process of a thin body ceramic handicraft according to claim 1, characterized in that, The preparation method of the modified pyrophyllite agent is as follows: S1: Blend a yttrium nitrate solution with a mass fraction of 2 - 4%, sodium alginate, and a sodium silicate solution with a mass fraction of 5 - 8% evenly according to a weight ratio of (2 - 4):3:(4 - 6) to obtain a yttrium-sodium alginate body; S2: Blend 3 - 5 parts by weight of barium oxide, 2 - 3 parts by weight of boron oxide, and 3 - 5 parts by weight of zirconium oxide evenly, and then perform thermal sintering at 235 - 245 °C for 2 h to obtain a composite body; Add the composite body to the yttrium-sodium alginate body according to a weight ratio of 3:5 and stir evenly to obtain a composite modified body; S3: First, stir the pyrophyllite in a composite modified body that is 3 - 5 times the total weight of the pyrophyllite. After stirring, obtain a composite liquid modified based on pyrophyllite; S4: Ball mill the composite liquid modified based on pyrophyllite and a strontium titanate ball milling body according to a weight ratio of 7:

5. After ball milling, perform suction filtration and drying to obtain a modified pyrophyllite agent.

4. The thin-walled manufacturing process of a thin-walled ceramic handicraft according to claim 3, characterized in that, The stirring speed of the stirring treatment in S3 is 550 - 750 r / min, and the stirring time is 2 h; the ball milling speed of the ball milling treatment in S4 is 1500 - 1800 r / min, and the ball milling time is 2 h.

5. The thin-wall manufacturing process of a thin-wall ceramic handicraft according to claim 3, characterized in that, The preparation method of the strontium titanate ball milling body is as follows: Blend 4 - 6 parts by weight of strontium titanate, 1 - 2 parts by weight of nano-silica sol, and 5 - 8 parts by weight of a hydrochloric acid dopamine solution evenly to obtain a strontium titanate solution; Add 2 - 4 parts by weight of cordierite powder and 1 - 3 parts by weight of silica powder to 5 - 8 parts by weight of the strontium titanate solution and stir evenly, and then perform suction filtration and drying to obtain a strontium titanate ball milling body.

6. The thin-walled manufacturing process of a thin-walled ceramic handicraft according to claim 5, characterized in that, The mass fraction of the hydrochloric acid dopamine solution is 2 - 5%.

7. A thin-walled manufacturing process for a thin-walled ceramic handicraft according to claim 1, characterized in that, The preparation method of the conditioner is as follows: S11: Place titanium oxide in a proton irradiation chamber and irradiate it for 1 h with an irradiation power of 350 - 400 W. After irradiation, obtain irradiated titanium oxide; S12: Stir and adjust the irradiated titanium oxide and an adjustment liquid according to a weight ratio of 3:5, perform suction filtration and drying to obtain a conditioner; Among them, the preparation method of the adjustment liquid is as follows: S12a: Blend 2 - 3 parts by weight of sodium carboxymethylcellulose, 7 - 11 parts by weight of lanthanum chloride solution, and 3 - 5 parts by weight of zinc oxide evenly to obtain a sodium carboxymethylcellulose solution; S12b: Add 2 - 3 parts by weight of wollastonite and 1 - 3 parts by weight of sericite powder to 5 - 8 parts by weight of the sodium carboxymethylcellulose solution and stir evenly to obtain an adjustment liquid.

8. A thin-walled manufacturing process for a thin-walled ceramic handicraft according to claim 7, characterized in that, The stirring speed of the stirring and adjusting treatment is 350 - 400 r / min, and the stirring time is 1 h.

9. The thin body manufacturing process of a thin body ceramic handicraft according to claim 7, characterized in that, The mass fraction of the lanthanum chloride solution is 4 - 6%.

10. A thin-walled ceramic handicraft is made by the thin-walled manufacturing process of a thin-walled ceramic handicraft according to any one of claims 1 to 9.

Images