Golden sand porcelain and manufacturing process thereof

Abstract

This invention relates to a gold-sand porcelain, comprising a ceramic body, characterized by further including a carved layer disposed on the surface of the ceramic body. The ceramic body comprises, by weight, the following components: 35-50 parts mineral clay, 25-35 parts hydromica, 2-6 parts kaolin, 10-20 parts quartz, 5-10 parts mica, 1-6 parts silicon dioxide, 2-5 parts iron oxide, 1-3 parts aluminum oxide, 2-6 parts calcium oxide, 2-5 parts magnesium oxide, 5-10 parts manganese oxide, 1-6 parts potassium oxide, 2-5 parts sodium oxide, and 2-6 parts zinc oxide. The carved layer is decorated according to a desired pattern. The gold-sand porcelain of this invention is characterized by being made of clay with a high gold content, being unglazed, having good breathability, good thermal shock resistance, preserving the original flavor of food, and optimizing and activating beneficial bacteria.

Description

Technical Field

[0001] This invention relates to the field of ceramic products technology, specifically to a gold-flecked porcelain and its manufacturing process. Background Technology

[0002] Ceramic products are widely used in my country, and the technology for producing ceramics is very mature. The traditional method of ceramic surface decoration is to glaze the surface of ceramic products. The glaze layer is smooth and has a high gloss, which not only makes the ceramic products more beautiful, but also increases their durability.

[0003] As people's living standards continue to improve, their aesthetic demands are also constantly changing. Traditional ceramic production typically involves a ceramic body followed by a base glaze and a top glaze layer, with special textures added for decoration on the top glaze. Therefore, developing display effects that differ from existing ceramic products could not only satisfy consumers' aesthetic needs but also provide a completely new type of ceramic product, thus having a positive impact on promoting the development of ceramic products. Summary of the Invention

[0004] The technical problem to be solved by this invention is to overcome the above-mentioned technical defects and provide a gold-flecked porcelain and its manufacturing process.

[0005] To solve the above problems, the technical solution of the present invention is: a gold sand porcelain and its manufacturing process, comprising a ceramic body, characterized in that: it further comprises an engraved layer disposed on the surface of the ceramic body.

[0006] The ceramic body comprises the following parts by weight: 35-50 parts mineral clay, 25-35 parts hydromica, 2-6 parts kaolin, 10-20 parts quartz, 5-10 parts mica, 1-6 parts silicon dioxide, 2-5 parts iron oxide, 1-3 parts aluminum oxide, 2-6 parts calcium oxide, 2-5 parts magnesium oxide, 5-10 parts manganese oxide, 1-6 parts potassium oxide, 2-5 parts sodium oxide, and 2-6 parts zinc oxide.

[0007] The engraved layer is decorated in a reasonable manner according to the required pattern.

[0008] Furthermore, the ceramic body comprises the following parts by weight: 40 parts mineral clay, 30 parts hydromica, 4 parts kaolin, 16 parts quartz, 6 parts mica, 4 parts silicon dioxide, 3 parts iron oxide, 2 parts aluminum oxide, 3 parts calcium oxide, 3 parts magnesium oxide, 8 parts manganese oxide, 3 parts potassium oxide, 3 parts sodium oxide, and 3 parts zinc oxide.

[0009] Furthermore, the depth of the engraved layer is 0.3-0.5 mm.

[0010] Furthermore, the aforementioned rare metals include gold, copper, silver, sulfur, zinc, silicon dioxide, aluminum oxide, ferric oxide, manganese dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, titanium oxide, and water of crystallization.

[0011] The manufacturing process of the gold sand porcelain includes the following steps:

[0012] (1) Weigh the raw materials according to the formula of ceramic body to prepare ceramic body glaze slurry;

[0013] (2) Use glaze to make ceramic blanks, design the overall shape, and wait for the shape to dry completely before drawing on the surface of the shape.

[0014] (3) Carve the decorative pattern by engraving the lines according to the drawing in step (2);

[0015] (4) Place the carved patterned instrument into the kiln and fire it once. The firing temperature is 1150-1280℃. After the kiln reaches the firing temperature, it will cool down at a uniform speed until it cools naturally.

[0016] Furthermore, during the firing and shaping process in step (4), the firing temperature control in the kiln is divided into five stages, as follows:

[0017] A: Under an oxidizing atmosphere, the kiln is heated to 600℃ at a uniform rate over 30-40 minutes;

[0018] B: Continue heating the kiln, raising it to 900℃ in 1.5-2 hours, and hold it at that temperature for 20-30 minutes.

[0019] C: Switch to a reducing atmosphere, and after 3-5 minutes, heat the kiln to the firing temperature and hold for 2-3 hours;

[0020] D: The kiln is cooled to 1000℃ at a cooling rate of 100℃ / h-120℃ / h under a reducing atmosphere;

[0021] E: Switch to an oxidizing atmosphere, rapidly cool down from 1000℃ to 500℃ in 10-30 minutes, and then allow to cool naturally until the product is removed from the kiln.

[0022] The advantages of this invention compared to existing technologies are as follows: Gold sand ware is a type of pottery made from special clay sand, a gold-copper clayey siltstone composed of minerals such as hydromica, kaolin, quartz, mica flakes, gold, copper, and iron, resulting in a variety of colors. Purple, yellow, and red clay can all be fired individually. Due to the high gold, copper, and iron content, it often turns golden-red after firing. This is because the basic content of gold sand clay includes gold, copper, silver, and iron, resulting in five colors, with purple, yellow, vermilion, and gray being the basic colors. Gold sand ware is characterized by being made from clay with a high gold content, being unglazed, having good breathability, good thermal shock resistance, preserving the original flavor of food, and optimizing and activating beneficial bacteria. The combination of gold sand ware forming techniques and carving techniques achieves beautiful shapes that are not only convenient to use but also vivid and interesting in appearance, exuding a strong literati atmosphere and reflecting the high degree of harmony between traditional craftsmanship and modern aesthetics among contemporary artists and collectors. Detailed Implementation

[0023] The present invention will now be described in further detail.

[0024] Example 1

[0025] This invention provides a gold-flecked porcelain and its manufacturing process.

[0026] A type of gold-dust porcelain includes a ceramic body and an engraved layer on the surface of the ceramic body. The engraved layer has a depth of 0.3 mm. The mineral clay contains several rare metals and is formed from feldspar-bearing rocks in the earth's crust through long-term weathering and geological processes. These rare metals include gold, copper, silver, sulfur, zinc, silicon dioxide, aluminum oxide, ferric oxide, manganese dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, titanium oxide, and water of crystallization. The ceramic body has the following weight proportions: mineral clay 35 parts, hydromica 25 parts, kaolin 2 parts, quartz 10 parts, mica 5 parts, silicon dioxide 1 part, ferric oxide 2 parts, aluminum oxide 1 part, calcium oxide 2 parts, magnesium oxide 2 parts, manganese oxide 5 parts, potassium oxide 1 part, sodium oxide 2 parts, and zinc oxide 2 parts.

[0027] A preparation process for the above-mentioned gold sand porcelain includes the following steps: (1) weighing the raw materials according to the formula of ceramic body to obtain ceramic body glaze slurry;

[0028] (2) Use glaze to make ceramic blanks, design the overall shape, and wait for the shape to dry completely before drawing on the surface of the shape.

[0029] (3) Carve the decorative pattern by engraving the lines according to the drawing in step (2);

[0030] (4) Place the carved patterned instrument into the kiln and fire it once. The firing temperature is 1150℃. After the kiln reaches the firing temperature, it will cool down at a uniform speed until it cools naturally.

[0031] In step (4), the firing temperature control in the kiln is divided into five stages, as follows:

[0032] A: Under an oxidizing atmosphere, the kiln temperature rises to 600℃ at a uniform rate over 30 minutes;

[0033] B: The kiln continues to heat up, reaching 900℃ after 1.5 hours, and is held at that temperature for 20 minutes.

[0034] C: Switch to a reducing atmosphere, and after 3 minutes, heat the kiln to the firing temperature and hold for 2 hours;

[0035] D: The kiln is cooled to 1000℃ at a cooling rate of 100℃ / h under a reducing atmosphere;

[0036] E: Switch to an oxidizing atmosphere, rapidly cool down from 1000℃ to 500℃ in 10 minutes, and then allow to cool naturally until the product is removed from the kiln.

[0037] Example 2

[0038] This invention provides a gold-flecked porcelain and its manufacturing process.

[0039] A type of gold-flecked porcelain includes a ceramic body and an engraved layer on the surface of the ceramic body. The engraved layer has a depth of 0.5 mm. The mineral clay contains several rare metals and is formed from feldspar-bearing rocks in the earth's crust through long-term weathering and geological processes. These rare metals include gold, copper, silver, sulfur, zinc, silicon dioxide, aluminum oxide, ferric oxide, manganese dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, titanium oxide, and water of crystallization. The ceramic body has the following weight proportions: 50 parts mineral clay, 35 parts hydromica, 6 parts kaolin, 20 parts quartz, 10 parts mica, 6 parts silicon dioxide, 5 parts ferric oxide, 3 parts aluminum oxide, 6 parts calcium oxide, 5 parts magnesium oxide, 10 parts manganese oxide, 6 parts potassium oxide, 5 parts sodium oxide, and 6 parts zinc oxide.

[0040] A preparation process for the above-mentioned gold sand porcelain includes the following steps: (1) weighing the raw materials according to the formula of ceramic body to obtain ceramic body glaze slurry;

[0041] (2) Use glaze to make ceramic blanks, design the overall shape, and wait for the shape to dry completely before drawing on the surface of the shape.

[0042] (3) Carve the decorative pattern by engraving the lines according to the drawing in step (2);

[0043] (4) Place the carved patterned instrument into the kiln and fire it once. The firing temperature is 1280℃. After the kiln reaches the firing temperature, it will cool down at a uniform speed until it cools naturally.

[0044] In step (4), the firing temperature control in the kiln is divided into five stages, as follows:

[0045] A: Under an oxidizing atmosphere, the kiln temperature rises to 600℃ at a constant rate over 40 minutes;

[0046] B: The kiln continues to heat up, reaching 900℃ after 2 hours, and is held at that temperature for 30 minutes.

[0047] C: Switch to a reducing atmosphere, and after 5 minutes, heat the kiln to the firing temperature and hold for 3 hours;

[0048] D: The kiln is cooled to 1000℃ at a rate of 120℃ / h under a reducing atmosphere;

[0049] E: Switch to an oxidizing atmosphere, rapidly cool down from 1000℃ to 500℃ in 30 minutes, and then allow to cool naturally until the product is removed from the kiln.

[0050] This invention relates to gold-sand ware, a type of pottery made from special clay sand, a gold-copper clayey siltstone composed of minerals such as hydromica, kaolin, quartz, mica flakes, gold, copper, and iron. The colors are diverse. Purple, yellow, and red clays can all be fired individually. Due to the high gold, copper, and iron content, the fired ware often turns golden-red. This is because the basic content of gold sand clay includes gold, copper, silver, and iron, resulting in five colors, with purple, yellow, vermilion, and gray being the basic colors. The characteristics of gold-sand ware include being made from clay with a high gold content, being unglazed, having good breathability, good thermal shock resistance, preserving the original flavor of food, and optimizing and activating beneficial bacteria. Through the combination of gold-sand ware forming techniques and carving skills, the ware achieves beautiful shapes that are not only convenient to use but also vivid and interesting in appearance, exuding a strong literati atmosphere and reflecting the high degree of harmony between traditional craftsmanship and modern aesthetics among contemporary artists and collectors.

[0051] The present invention and its embodiments have been described above. This description is not restrictive, and the actual structure is not limited thereto. In summary, if those skilled in the art, inspired by this description, design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the scope of protection of this invention.

Claims

1. A type of gold-flecked porcelain, comprising a ceramic body, characterized in that: It also includes an engraved layer disposed on the surface of the ceramic body, wherein the ceramic body comprises the following parts by weight: mineral clay 35-50 parts, hydromica 25-35 parts, kaolin 2-6 parts, quartz 10-20 parts, mica 5-10 parts, silicon dioxide 1-6 parts, iron oxide 2-5 parts, aluminum oxide 1-3 parts, calcium oxide 2-6 parts, magnesium oxide 2-5 parts, manganese oxide 5-10 parts, potassium oxide 1-6 parts, sodium oxide 2-5 parts, and zinc oxide 2-6 parts; The mineral clay contains gold, copper, silver, sulfur, zinc, silicon dioxide, aluminum oxide, ferric oxide, manganese dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, titanium oxide, and water of crystallization. The carved layer is decorated according to the desired pattern. The entire piece with the carved pattern is then placed in a kiln and fired once to form the final shape. The firing temperature is 1150-1280℃, and the kiln firing temperature is controlled in five stages, as detailed below: A: Under an oxidizing atmosphere, the kiln is heated to 600℃ at a uniform rate over 30-40 minutes; B: Continue heating the kiln to 900℃ in 1.5-2 hours, and hold for 20-30 minutes; C: Switch to a reducing atmosphere, and after 3-5 minutes, heat the kiln to the firing temperature and hold for 2-3 hours; D: The kiln is cooled to 1000℃ at a cooling rate of 100℃ / h-120℃ / h under a reducing atmosphere; E: Switch to an oxidizing atmosphere, rapidly cool down from 1000℃ to 500℃ in 10-30 minutes, and then allow to cool naturally until it is removed from the kiln.

2. The gold-flecked porcelain according to claim 1, characterized in that: The ceramic body contains the following parts by weight: 40 parts mineral clay, 30 parts hydromica, 4 parts kaolin, 16 parts quartz, 6 parts mica, 4 parts silicon dioxide, 3 parts iron oxide, 2 parts aluminum oxide, 3 parts calcium oxide, 3 parts magnesium oxide, 8 parts manganese oxide, 3 parts potassium oxide, 3 parts sodium oxide, and 3 parts zinc oxide.

3. The gold-flecked porcelain according to claim 1, characterized in that: The depth of the engraved layer is 0.3-0.5 mm.

4. The preparation process of gold sand porcelain as described in any one of claims 1-3, characterized in that: Specifically, the steps include the following: (1) Weigh the raw materials according to the formula of ceramic body to prepare ceramic body glaze slurry; (2) Use glaze slurry to make ceramic blanks, design the overall shape, and wait for the shape to dry completely before drawing on the surface of the shape. (3) Carve the decorative pattern by engraving the lines according to the drawing in step (2); (4) Place the carved pattern into the kiln and fire it once. The firing temperature is 1150-1280°C. After the kiln reaches the firing temperature, cool it down at a uniform rate until it cools naturally.

5. The preparation process of gold sand porcelain according to claim 4, characterized in that: In step (4), the firing temperature control in the kiln is divided into five stages, as follows: A: Under an oxidizing atmosphere, the kiln is heated to 600℃ at a uniform rate over 30-40 minutes; B: Continue heating the kiln, raising it to 900℃ in 1.5-2 hours, and hold it at that temperature for 20-30 minutes. C: Switch to a reducing atmosphere, and after 3-5 minutes, heat the kiln to the firing temperature and hold for 2-3 hours; D: The kiln is cooled to 1000℃ at a cooling rate of 100℃ / h-120℃ / h under a reducing atmosphere; E: Switch to an oxidizing atmosphere, rapidly cool down from 1000℃ to 500℃ in 10-30 minutes, and then allow to cool naturally until it is removed from the kiln.