Manufacturing method of Jianshui purple pottery plate

Abstract

The invention relates to a method for manufacturing a Jianshui purple pottery plate, which comprises the following steps of: preparing a red mud raw material from 40-85 parts of carclazyte, 15-40 parts of loess, 5-30 parts of purple soil and 5-20 parts of fine sand of 100-200 meshes, or preparing a white mud raw material from 10-90 parts of carclazyte, 10-90 parts of green soil and 5-20 parts of fine sand of 100-200 meshes; then preparing a ceramic plate pug; manufacturing the ceramic plate pug into a cylindrical pug strip, placing the cylindrical pug strip in a plate pressing mold, and rolling the cylindrical pug strip into a pug plate with uniform thickness by using a round bar to roll back and forth; then the mud board and the pressing board mold are turned over together to be placed on an airing platform on which kaolin powder is spread, demolding is conducted, and after the mud board is aired on the airing platform for 0.5-2 days, the mud board is turned over and transferred to a wood board to be aired. According to the method, the qualified Jianshui purple pottery plate can be efficiently manufactured, the product rejection rate is extremely low, and the problem that the qualified Jianshui purple pottery plate which does not deform is difficult to manufacture on a large scale for a long time is effectively solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of the production of Jianshui purple pottery. Background Art

[0002] The mud materials of Jianshui purple pottery include white clay, yellow clay, five-color clay, blue clay and purple clay. The traditional red mud formula of Jianshui purple pottery uses natural clay raw materials within the territory of Jianshui County, Yunnan Province, China. Usually, it is proportioned according to 10 parts of white clay, 17 parts of purple clay, 17 parts of yellow clay, 20 parts of blue clay, and 36 parts of five-color clay. The white mud formula is usually proportioned according to 50 parts of white clay and 50 parts of blue clay. Due to the large difference in plasticity of the raw materials and the overly fine particles, when making a ceramic plate on which artistic creation can be carried out (such as carving, painting, writing, etc. on the ceramic plate using various techniques), during the pressing process and firing process of the ceramic plate, the ceramic plate is prone to deformation and difficult to maintain flatness, resulting in difficult creation of Jianshui purple pottery ceramic plate works, low production rate, and lack of effective solutions. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art, and provide a method for efficiently producing qualified Jianshui purple pottery ceramic plates, providing more creative substrates for the artistic creation of Jianshui purple pottery.

[0004] The technical solution adopted by the present invention is as follows: A method for making Jianshui purple pottery ceramic plates, the steps of the method are as follows: S1. Prepare the red mud raw material or the white mud raw material, the method is as follows: By mass, use 40 - 85 parts of white clay, 15 - 40 parts of yellow clay, 5 - 30 parts of purple clay, and 5 - 20 parts of 100 - 200 - mesh fine sand to prepare the red mud raw material; By mass, use 10 - 90 parts of white clay, 10 - 90 parts of blue clay, and 5 - 20 parts of 100 - 200 - mesh fine sand to prepare the white mud raw material; The preparation of the raw materials is to first screen the white clay, yellow clay, purple clay, and blue clay with a 100 - mesh sieve respectively to remove the coarse sand larger than 100 meshes, and then continue to screen the white clay, yellow clay, purple clay, and blue clay with a 180 - 200 - mesh sieve respectively. Use the finally screened white clay, yellow clay, purple clay, blue clay and the screened fine sand as raw materials, and proportion them according to the designed mass parts; S2. Make mud and knead mud: Mix the prepared red mud raw material or white mud raw material with water and stir, after pressure filtration, vacuum knead 2 - 5 times to obtain the ceramic plate mud material; S3. Press the ceramic plate: Make the ceramic plate clay into a cylindrical clay strip and place it in the pressing die. The pressing die includes a rectangular bottom plate and retaining bars symmetrically arranged at both ends of the bottom plate. Place the cylindrical clay strip between the retaining bars at both ends and perpendicular to the retaining bars. The diameter of the cylindrical clay strip is greater than the height of the retaining bars. Press a groove along the radial direction on the cylindrical clay strip, place a round bar in the groove, with both ends of the round bar above the retaining bars, then press both ends of the round bar and roll the round bar back and forth along the length direction of the retaining bars to roll and thin the cylindrical clay strip until both ends of the round bar are placed on the retaining bars, and roll the clay strip into a clay plate with the same thickness as the height of the retaining bars. S4. Drying: Take out the rolled clay plate together with the pressing die, evenly sprinkle a layer of kaolin powder on the drying platform, then turn the clay plate and the pressing die over and place them on the drying platform sprinkled with kaolin powder to demold. After drying the clay plate on the drying platform for 0.5 - 2 days, turn the clay plate over and transfer it to a wooden board for further drying.

[0005] Further, in step S3 above, after rolling the cylindrical clay strip into a clay plate, use a cutter to cut off the surplus clay on both sides of the pressing die where there are no retaining bars to obtain a clay plate with neat boundaries.

[0006] Further, the round bar in step S3 above is a solid bar or a hollow bar.

[0007] Further, the drying platform in step S4 above is a cement platform.

[0008] The method of the present invention has the following advantages: 1. In the red clay raw material and white clay raw material formulas of the present invention, fine sand of Jianshui purple clay raw material is particularly added, which changes the plasticity of the clay while not changing the characteristics of the purple clay material, can reduce drying shrinkage, and effectively prevent the clay plate from deforming during drying and subsequent high-temperature firing.

[0009] 2. The present invention uses a rolling method to press the clay plate on the pressing die, which is convenient to operate and the obtained clay plate has uniform thickness, a flat surface, and uniform internal structure, facilitating subsequent artistic creation, such as using the traditional intaglio and inlaying techniques of Jianshui purple clay for creation.

[0010] 3. The drying method of the clay plate of the present invention is simple and effective. Turning the clay plate and the pressing die over and placing them on the drying platform sprinkled with kaolin powder can, on the one hand, ensure that the wet clay plate does not deform during demolding, and on the other hand, sprinkling a layer of kaolin powder on the cement plate is conducive to forming loose and uniform dehydration channels during the drying of the clay plate, preventing the clay plate from deforming due to stress concentration during the drying process. Further, after drying the clay plate on the drying platform for 0.5 - 2 days, turn the clay plate over and transfer it to a wooden board for drying. The wooden board has good hygroscopicity and will not condense water vapor on the bottom surface of the initially dried clay plate, preventing moisture return. Description of the Drawings

[0011] Figure 1 This is a schematic diagram of preparing the clay board in the present invention. Specific embodiments

[0012] The content of the present invention will be further elaborated below in conjunction with the accompanying drawings of the specification and embodiments. Example 1

[0013] A method for making a red clay board of Jianshui purple pottery, the method steps are as follows: S1. First, sieve white clay, yellow clay, and purple clay with a 100-mesh sieve respectively to remove coarse sand larger than 100 mesh. Then continue to sieve white clay, yellow clay, and purple clay with a 200-mesh sieve respectively. The finally sieved white clay, yellow clay, purple clay, and the 100-200-mesh fine sand screened out are used as raw materials. Then, prepare the red clay raw materials according to the following mass parts: 50 parts of white clay, 30 parts of yellow clay, 20 parts of purple clay, and 10 parts of 100-200-mesh fine sand; S2. Making and kneading the clay: Mix the prepared red clay raw materials with water and stir. After pressure filtration, knead them in a vacuum for 3 times to obtain the clay material for the clay board; S3. Pressing the clay board: As Figure 1 shown, make the clay material for the clay board into a cylindrical clay strip and place it in the pressing plate mold. The pressing plate mold includes a rectangular bottom plate 1 and retaining strips 2 symmetrically arranged at both ends of the bottom plate. Place the cylindrical clay strip 5 between the retaining strips at both ends and perpendicular to the retaining strips. The diameter of the cylindrical clay strip is greater than the height of the retaining strips. The specific diameter is calculated according to the clay material required for pressing the clay board or mastered according to experience. First, press a groove 3 along the radial direction on the cylindrical clay strip, place a solid round rod 4 in the groove, with both ends of the round rod above the retaining strips. Then press both ends of the round rod and roll the round rod back and forth along the length direction of the retaining strips to roll and press the cylindrical clay strip thinner like rolling dough until both ends of the round rod are placed on the retaining strips, and roll and press the clay strip into a clay board with the same thickness as the height of the retaining strips; then use a cutter to cut off the surplus clay material on both sides of the pressing plate mold where there are no retaining strips to obtain a clay board with neat boundaries; S4. Drying: Take out the rolled clay board together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform for drying, then turn the clay board and the pressing plate mold over and place them on the cement platform sprinkled with kaolin powder, remove the pressing plate mold to complete demolding, dry the clay board on the cement platform for 1.5 days, and then turn the clay board over and transfer it to the wooden board for drying.

[0014] Subsequently, artistic creation can be carried out on the dried clay board, such as painting, writing, engraving and filling, etc. After the artistic creation is completed, it is sent to the furnace for firing to obtain the Jianshui purple pottery red clay board works. Example 2

[0015] A method for making a red clay board of Jianshui purple pottery, the method steps are as follows: S1. First, sieve the white clay, yellow clay, and purple clay separately with a 100-mesh sieve to remove the coarse sand larger than 100 meshes. Then, continue to sieve the white clay, yellow clay, and purple clay separately with a 180-mesh sieve. Use the finally sieved white clay, yellow clay, purple clay, and the fine sand with 100 - 180 meshes as raw materials. Then, prepare the white clay raw material according to the following mass parts: 40 parts of white clay, 40 parts of yellow clay, 5 parts of purple clay, and 20 parts of fine sand with 100 - 180 meshes; S2. Mud making and refining: Mix the prepared red clay raw material with water and stir. After pressure filtration, refine it under vacuum for 5 times to obtain the ceramic plate clay material; S3. Pressing the ceramic plate: Make the ceramic plate clay material into a cylindrical clay strip and place it in the Figure 1 pressing plate mold as shown. Place the cylindrical clay strip between the retaining bars at both ends and perpendicular to the retaining bars. First, press a groove along the radial direction on the cylindrical clay strip, place a round rod in the groove, and then, as in Example 1, press the two ends of the round rod and roll the round rod back and forth along the length direction of the retaining bar to roll the cylindrical clay strip into a clay plate with the same thickness as the height of the retaining bar; then, use a cutter to cut off the surplus clay material on both sides of the pressing plate mold where there are no retaining bars to obtain a clay plate with neat boundaries; S4. Drying: Take out the rolled clay plate together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform, then turn the clay plate and the pressing plate mold over and place them on the cement platform. Remove the pressing plate mold to complete demolding. Let the clay plate dry on the cement platform for 0.5 days, and then turn the clay plate over and transfer it to the wooden board to dry.

[0016] Subsequently, artistic creation can be carried out on the dried clay plate. After the creation is completed, it is sent to the kiln for firing to obtain the red clay ceramic plate works of Jianshui purple pottery. Example 3

[0017] A method for making a red clay ceramic plate of Jianshui purple pottery, the method steps are as follows: S1. First, sieve the white clay, yellow clay, and purple clay separately with a 100-mesh sieve to remove the coarse sand larger than 100 meshes. Then, continue to sieve the white clay, yellow clay, and purple clay separately with a 190-mesh sieve. Use the finally sieved white clay, yellow clay, purple clay, and the fine sand with 100 - 190 meshes as raw materials. Then, prepare the white clay raw material according to the following mass parts: 85 parts of white clay, 15 parts of yellow clay, 30 parts of purple clay, and 5 parts of fine sand with 100 - 190 meshes; S2. Mud making and refining: Mix the prepared red clay raw material with water and stir. After pressure filtration, refine it under vacuum for 4 times to obtain the ceramic plate clay material; S3. Pressing the ceramic plate: Make the ceramic plate clay material into a cylindrical clay strip and place it in the Figure 1In the pressing plate mold shown, the cylindrical clay strip is placed between the retaining bars at both ends and is perpendicular to the retaining bars. First, a groove is pressed radially on the cylindrical clay strip, a round bar is placed in the groove, and then the two ends of the round bar are pressed and the round bar is reciprocally rolled along the length direction of the retaining bar to roll the cylindrical clay strip into a clay board with the same thickness as the height of the retaining bar; then the excess clay on both sides of the pressing plate mold where there are no retaining bars is cut off with a cutter to obtain a clay board with neat boundaries; S4. Drying: Take out the rolled clay board together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform, then turn the clay board and the pressing plate mold over and place them on the cement platform, remove the pressing plate mold to complete demolding, let the clay board dry on the cement platform for 2 days, and then turn the clay board over and transfer it to the wooden board to dry.

[0018] Subsequently, artistic creation can be carried out on the dried clay board. After the creation is completed, it is sent to the kiln for firing to obtain the Jianshui purple clay red clay board works. Example 4

[0019] A method for making Jianshui purple clay white clay boards, the method steps are as follows: S1. First, sieve the white clay and blue clay separately with a 100-mesh sieve to remove the coarse sand larger than 100 meshes. Then continue to sieve the white clay and blue clay separately with a 180-mesh sieve. The finally sieved white clay, blue clay and the 100-180-mesh fine sand are used as raw materials. Then, prepare the white clay raw material according to the following mass parts: 60 parts of white clay, 30 parts of blue clay, and 10 parts of 100-180-mesh fine sand; S2. Clay making and clay kneading: Mix and stir the prepared white clay raw material with water, after pressure filtration, knead it in vacuum for 2 times to obtain the clay material for the clay board; S3. Pressing the clay board: Make the clay material for the clay board into a cylindrical clay strip and place it in Figure 1 the pressing plate mold shown. The cylindrical clay strip is placed between the retaining bars at both ends and is perpendicular to the retaining bars. First, a groove is pressed radially on the cylindrical clay strip, a hollow round bar is placed in the groove, and then the two ends of the round bar are pressed and the round bar is reciprocally rolled along the length direction of the retaining bar to roll the cylindrical clay strip into a clay board with the same thickness as the height of the retaining bar; then the excess clay on both sides of the pressing plate mold where there are no retaining bars is cut off with a cutter to obtain a clay board with neat boundaries; S4. Drying: Take out the rolled clay board together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform, then turn the clay board and the pressing plate mold over and place them on the cement platform, remove the pressing plate mold to complete demolding, let the clay board dry on the cement platform for 1 day, and then turn the clay board over and transfer it to the wooden board to dry.

[0020] Subsequently, artistic creation can be carried out on the dried clay board. After the creation is completed, it is sent to the kiln for firing to obtain the Jianshui purple clay white clay board works. Example 5

[0021] A method for making white clay ceramic plates of Jianshui purple clay, the method steps are as follows: S1. First, sieve white clay, green clay, and purple clay separately with a 100-mesh sieve to remove coarse sand larger than 100 meshes. Then continue to sieve white clay, green clay, and purple clay separately with a 200-mesh sieve. Take the finally sieved white clay, green clay, purple clay, and the 100-200-mesh fine sand separated out as raw materials. Then prepare the white clay raw material according to the following mass parts: 30 parts of white clay, 50 parts of green clay, and 20 parts of 100-280-mesh fine sand; S2. Mud making and refining: Mix and stir the prepared white clay raw material with water. After pressure filtration, vacuum refine it 3 times to obtain the ceramic plate mud material; S3. Pressing the ceramic plate: Make the ceramic plate mud material into a cylindrical mud strip and place it in the Figure 1 pressing plate mold shown. The cylindrical mud strip is placed between the retaining strips at both ends and is perpendicular to the retaining strips. First, press a groove along the radial direction on the cylindrical mud strip, place a hollow round bar in the groove, then press both ends of the round bar and roll the round bar back and forth along the length direction of the retaining strip to roll the cylindrical mud strip into a mud plate with the same thickness as the height of the retaining strip; then use a cutter to cut off the mud material remaining on both sides of the pressing plate mold where there are no retaining strips to obtain a mud plate with neat boundaries; S4. Drying: Take out the rolled mud plate together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform, then turn the mud plate and the pressing plate mold over and place them on the cement platform. Remove the pressing plate mold to complete demolding. Air-dry the mud plate on the cement platform for 1.5 days, and then turn the mud plate over and transfer it to a wooden board to dry.

[0022] Subsequently, artistic creation can be carried out on the air-dried mud plate. After the creation is completed, it is sent to a furnace for firing to obtain the Jianshui purple clay white clay ceramic plate works. Example 6

[0023] A method for making white clay ceramic plates of Jianshui purple clay, the method steps are as follows: S1. First, sieve white clay, green clay, and purple clay separately with a 100-mesh sieve to remove coarse sand larger than 100 meshes. Then continue to sieve white clay, green clay, and purple clay separately with a 190-mesh sieve. Take the finally sieved white clay, green clay, purple clay, and the 100-190-mesh fine sand separated out as raw materials. Then prepare the white clay raw material according to the following mass parts: 80 parts of white clay, 10 parts of green clay, and 10 parts of 100-190-mesh fine sand; S2. Mud making and refining: Mix and stir the prepared white clay raw material with water. After pressure filtration, vacuum refine it 4 times to obtain the ceramic plate mud material; S3. Pressing the ceramic plate: Make the ceramic plate mud material into a cylindrical mud strip and place it in the Figure 1In the pressing plate mold shown, a cylindrical clay strip is placed between the retaining bars at both ends and is perpendicular to the retaining bars. First, a groove is pressed out radially on the cylindrical clay strip, a hollow round bar is placed in the groove, and then both ends of the round bar are pressed and the round bar is reciprocally rolled along the length direction of the retaining bar to roll the cylindrical clay strip into a clay board with the same thickness as the height of the retaining bar; then the excess clay on both sides of the pressing plate mold where no retaining bar is provided is cut off with a cutter to obtain a clay board with neat boundaries; S4. Drying: Take out the rolled clay board together with the pressing plate mold, evenly sprinkle a layer of kaolin powder on the cement platform, then turn the clay board and the pressing plate mold over and place them on the cement platform, remove the pressing plate mold to complete demolding, let the clay board dry on the cement platform for 2 days, and then turn the clay board over and transfer it to a wooden board to dry.

[0024] Subsequently, artistic creation can be carried out on the dried clay board. After the creation is completed, it is sent to a kiln for firing to obtain a white clay ceramic board work of Jianshui purple pottery.

[0025] In the method of the present invention, the methods of making clay and refining clay are both traditional technical methods. The white clay, yellow clay, green clay, and purple clay used are all ore soils purchased in Jianshui City. Those skilled in the art are aware of the methods of making clay and refining clay and the source of raw materials, so they will not be elaborated here.

[0026] The method of the present invention can efficiently produce qualified Jianshui purple pottery ceramic boards. Through experimental verification, the rejection rate of the products is extremely low, effectively solving the long-term dilemma of being difficult to mass-produce qualified Jianshui purple pottery ceramic boards without deformation, and providing more creative substrates for the artistic creation of Jianshui purple pottery.

Claims

1. A method for making Jianshui purple pottery panels, characterized in that: The steps are as follows: S1. Prepare red mud raw material or white mud raw material as follows: By weight, 40-85 parts of white clay, 15-40 parts of loess, 5-30 parts of purple clay, and 5-20 parts of 100-200 mesh fine sand are used to prepare the red mud raw material; By weight, 10-90 parts of white clay, 10-90 parts of green clay, and 5-20 parts of 100-200 mesh fine sand are used to prepare the white mud raw material; The raw materials are prepared by first using a 100-mesh sieve to respectively sieve the white clay, loess, purple clay, and green clay, and sieving out the coarse sand larger than 100 meshes, and then using a 180-200-mesh sieve to continue to sieve the white clay, loess, purple clay, and green clay, and using the sieved white clay, loess, purple clay, green clay, and the sieved fine sand as raw materials, and batching according to the designed mass fraction; S2. Mud making and mud training: The prepared red mud raw material or white mud raw material is mixed with water and stirred, filtered, and vacuum trained 2 to 5 times to obtain a ceramic plate mud material; S3. Pressing a ceramic plate: making a ceramic plate clay material into a cylindrical clay strip, and placing it in a pressing plate mold; the pressing plate mold comprises a rectangular bottom plate (1) and stop bars (2) symmetrically arranged at both ends of the bottom plate; placing a cylindrical clay strip (5) between the stop bars at both ends and perpendicular to the stop bars, wherein the diameter of the cylindrical clay strip is greater than the height of the stop bar; pressing a groove (3) radially on the cylindrical clay strip, placing a round rod (4) in the groove, with both ends of the round rod located above the stop bar, then pressing both ends of the round rod and rolling the round rod back and forth along the length direction of the stop bar, rolling and pressing the cylindrical clay strip to make it thinner, until both ends of the round rod are placed on the stop bar, and rolling the clay strip into a clay plate with the same thickness as the height of the stop bar; S4. Drying: Take out the rolled clay board together with the pressing board mold, sprinkle a layer of kaolin powder evenly on the drying platform, then turn the clay board and the pressing board mold over and place them on the drying platform sprinkled with kaolin powder, demould, dry the clay board on the drying platform for 0.5 to 2 days, then turn the clay board over and transfer it to the wooden board to dry.

2. The method for making Jianshui purple pottery panels according to claim 1, characterized in that: In the above step S3, after the cylindrical clay strips are rolled into a clay board, the excess clay material on both sides of the pressing plate mold where no stop bars are set is cut off with a cutter to obtain a clay board with neat boundaries.

3. The method for making Jianshui purple pottery plate according to claim 1 or 2, characterized in that: The round rod in the above step S3 is a solid rod or a hollow rod.

4. The method for making Jianshui purple pottery plate according to claim 1 or 2, characterized in that: The drying platform in the above step S4 is a cement platform.

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