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A kind of preparation method of purple sand stamp

A technology for stamps and purple sand, applied in the field of preparation of purple sand stamps, can solve the problems of uneven shrinkage of the embryo body of the purple sand stamps, uneven quality levels of the purple sand stamps, low production efficiency, etc., so as to save the drying time in the shade, reduce the shrinkage rate, and improve the quality. Effect

Active Publication Date: 2019-11-19
沈卫光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the traditional method of preparing purple sand stamps has the defects of complex procedures and low production efficiency, and the prepared purple sand stamp embryos have the problem of uneven shrinkage; at the same time, the purple sand stamps made by traditional manual methods have uneven quality levels. Qi's problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In this example, the purple sand stamp body is prepared by gypsum molding.

[0020] Add water to purple sand powder with a particle size of 0.5-1mm, and mix evenly to form purple sand mud with a water content of 30%. Put the above-mentioned purple sand mud into a plaster mold made of α-type plaster of paris. The plaster mold is in the shape of a postage stamp and has an open cavity. The depth of the mold cavity is 1 time of the thickness of the final purple sand stamp. The edges of the cavity form tooth-like ribs arranged vertically.

[0021] After the purple sand mud material is put into the mold cavity, the height of the purple sand mud material protruding from the top of the mold cavity is 10% of the depth of the mold cavity. Then, press the purple sand mud material against the gypsum mold by the pressing plate made of α-type plaster of paris in the direction of the cavity and keep the pressure for 5 minutes. After the water content of the purple sand mud in the ...

Embodiment 2

[0027] The main difference between this example and Example 1 is that in this example, the purple sand stamp body is prepared by roller pressing.

[0028] In this embodiment, two half-molds made of α-type plaster of paris are used. Both half-molds have a cavity for forming a complete purple sand stamp body, and the depth of the cavity is 1.1 times the thickness of the purple sand stamp. times. Put the purple sand mud with a moisture content of 30% into the cavity, squeeze it through the two half molds, and absorb the moisture in the purple sand mud for many months through the two half molds, and quickly reduce the internal moisture content. moisture. The two half-moulds can be installed on two rollers that roll in opposite directions to realize continuous extrusion, molding and demoulding, and finally prepare purple sand stamp blanks with a moisture content of 20%. Then, dry the purple sand stamp embryo body in the shade until the water content is 8-10%. Then, put the purpl...

Embodiment 3

[0030] The main difference between this example and Example 1 or Example 2 is that in this example, the dry powder pressing method is used to prepare the purple sand stamp embryo body.

[0031] In this embodiment, the purple sand mud with a particle size of 0.5-1 mm is added with water to form the purple sand mud, and the water content of the purple sand mud is controlled at 5%. Then, put the above-mentioned purple sand mud into the plaster mold made of α-type plaster of paris in embodiment one. The plaster mold is in the shape of a postage stamp and has an open cavity. The depth of the mold cavity is 1 time of the thickness of the final purple sand stamp. The edges of the cavity form tooth-like ribs arranged vertically. The height of the purple sand mud material above the top of the cavity is equal to 30% of the depth of the cavity. Then, press the purple sand mud material against the gypsum mold through the pressing plate made of α-type plaster of paris facing the directi...

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Abstract

The invention provides a preparation method of a red porcelain stamp. The preparation method comprises the following steps: a certain moisture content of red porcelain mud is put in a plaster mold, wherein the plaster mold is provided with a stamp-shaped and open mold cavity, the red porcelain mud is higher than the top of the mold cavity, the depth of the mold cavity is 1.1 times of the thickness of the red porcelain stamp, and the edge of the mold cavity forms a toothed and vertically-arranged ridge; a tabletting plate made of plaster applies pressure to the plaster mold and maintains the pressure, so that after the moisture content of the red porcelain clay in the plaster mold is reduced to 20 percent, the red porcelain mud is demolded to obtain a red porcelain stamp blank; the red porcelain stamp blank is put in a kiln to be burnt for 24 hours, so that the final red porcelain stamp is obtained. Through the preparation method provided by the invention, the manufacturing efficiency of the red porcelain stamp is improved, the manufacturing process is simplified, and the quality of the red porcelain stamp is improved.

Description

technical field [0001] The invention relates to the technical field of preparation of purple sand products, in particular to a preparation method of purple sand stamps. Background technique [0002] Zisha stamp is a kind of handicraft made of purple sand mud. It has the shape of a stamp and the unique texture of purple sand, and has high artistic appreciation value. The traditional purple sand stamp preparation method is prepared by hand. The method for manually preparing purple sand stamps is specifically the following steps. Firstly, dry the finished purple sand clay naturally in the shade until the moisture content is about 30%, and then cut it to form a square or rectangular column with a cross section; then, dry it naturally until the moisture content is about 20%; according to the design Cut square or rectangular mud pieces at certain distances according to the given stamp dimensions, and continue to dry in the shade naturally; beat the mud pieces with a wooden stick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/04C04B33/24C04B33/30B28B3/00B28B7/34
CPCB28B3/00B28B7/344C04B33/04C04B33/24C04B33/30
Inventor 沈卫光
Owner 沈卫光