Forming and processing method for fine ceramic accessories

A technology for precision ceramics and ornaments, which is applied in the fields of crafts and decorative arts for producing decorative surface effects, and can solve problems such as difficult processing and complex structures

Active Publication Date: 2015-07-22
廖文宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant disclosed a fine ceramics with jade texture and its preparation method in the Chinese patent application CN201210335182.9, but it is difficult to directly process the fine ceramics into ornaments with complex structures if the Mohs hardness is above 8

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for processing and forming precision ceramic ornaments, the steps of which are as follows:

[0028] 1) Grinding the main raw material of precision ceramics into nano-scale powder, in which the main raw material is zirconia powder;

[0029] 2) Design the mold according to the size and shape of the jewelry to be processed;

[0030] 3) Add a binder to the main raw material in step 1), stir it with an injection molding machine and inject it into the mold in the above step 2), cool and mold it, and demould it to obtain a molding blank;

[0031] 4) Soak the above forming blank in aviation kerosene;

[0032] 5) Dry the molded blank after soaking in step 4);

[0033] 6) Step 5) Degrease the dried blank in a degreasing furnace at 500-600°C;

[0034] 7) The molded blank after degreasing and bisque firing is sintered at a temperature of 1000-1200°C at a low temperature to obtain a molded blank with a Mohs hardness of 6;

[0035] 8) After the above-mentioned low-temper...

Embodiment 2

[0038] A method for processing and forming precision ceramic ornaments, the steps of which are as follows:

[0039] 1) Grinding the main raw materials of precision ceramics into nano-scale powders, the main raw materials are zirconia powder, alumina powder and silicon nitride powder;

[0040] 2) Design the mold according to the size and shape of the jewelry to be processed;

[0041] 3) Add a binder to the main raw material in step 1), stir it with an injection molding machine and inject it into the mold in the above step 2), cool and mold it, and demould it to obtain a molding blank;

[0042] 4) Soak the above forming blank in aviation kerosene;

[0043] 5) Dry the molded blank after soaking in step 4);

[0044] 6) Step 5) Degrease the dried blank in a degreasing furnace at 500-600°C;

[0045] 7) The molded blank after degreasing and bisque firing is sintered at a temperature of 1000-1200°C at a low temperature to obtain a molded blank with a Mohs hardness of 6;

[0046] 8...

Embodiment 3

[0049] A method for processing and forming precision ceramic ornaments, the steps of which are as follows:

[0050] 1) Grinding the main raw materials of precision ceramics into nano-scale powders, the main raw materials are zirconia powder and alumina powder;

[0051] 2) Design the mold according to the size and shape of the jewelry to be processed;

[0052] 3) Add a binder to the main raw material in step 1), stir it with an injection molding machine and inject it into the mold in the above step 2), cool and mold it, and demould it to obtain a molding blank;

[0053] 4) Soak the above forming blank in aviation kerosene;

[0054] 5) Dry the molded blank after soaking in step 4);

[0055] 6) Step 5) Degrease the dried blank in a degreasing furnace at 500-600°C;

[0056] 7) The molded blank after degreasing and bisque firing is sintered at a temperature of 1000-1200°C at a low temperature to obtain a molded blank with a Mohs hardness of 6;

[0057] 8) After the above-mentio...

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Abstract

The invention discloses a forming and processing method for fine ceramic accessories. The forming and processing method comprises the following steps of firstly, grinding fine ceramic main materials into nano-scale powder; then, designing a mould according to dimensions and shapes of to-be-processed accessories; adding a binder into the main materials, stirring by an injection molding machine, and injection-molding into the mould, de-molding after cooling and forming to obtain formed blank, and soaking in aviation kerosene and then drying in air; degreasing and biscuiting the dried blank in a degreasing furnace at 500-600 DEG C; sintering at a low temperature of 1000-1200 DEG C; carving and modeling on the formed blank according to a designed shape to obtain formed accessories; and finally, sintering at a high temperature of 1250-1500 DEG C to obtain the fine ceramic accessories. The forming and processing method disclosed by the invention realizes application of the fine ceramic in accessories by controlling hardness of the fine ceramic.

Description

technical field [0001] The invention relates to the technical field of processing ceramic ornaments, in particular to a processing and molding method for precision ceramic ornaments. Background technique [0002] Ceramics is the general term for pottery and porcelain. Humans invented pottery as early as the Neolithic Age, about 8000 BC. Ceramic materials are mostly oxides, nitrides, borides and carbides. Common ceramic materials include clay, alumina, kaolin, etc. These ceramic materials generally have high hardness but poor plasticity. With the development of modern science and technology, many new ceramic varieties have emerged in the past century. They no longer use or rarely use traditional ceramic raw materials such as clay, feldspar, and quartz, but use other special raw materials, and even expand to the range of non-silicate and non-oxide, and many new processes and new materials have emerged. application field. [0003] Precision ceramics are ceramics with smoot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66B44C1/22
Inventor 廖文宏
Owner 廖文宏
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