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Ceramic repairing method

A technology for ceramics and ceramic bodies, applied in the field of ceramic repair, can solve problems such as poor bonding force and easy cracking, and achieve the effect of enhanced bonding force

Inactive Publication Date: 2020-09-29
ZHONGTAO SANITARY WARO MFG CO LTD OF TANGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When refiring, the ceramic body has been fired into a dense individual, and the degree of bonding of the repair material with it after refiring is far from 100%, and there are a large number of tiny gaps at the junction, resulting in poor bonding between the two. Easy to crack when fired

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] A. Grind the defective parts on the ceramic body, and polish the inner surface of the pit smoothly, and ensure that the opening of the pit is getting bigger and bigger from the bottom surface of the pit to the surface of the ceramic body, and then use a micro sandblasting machine to Sandblasting is carried out on the polished part, and the blasting material in the sandblasting process is 150-200 mesh white corundum, and the blasting pressure is 0.5MPa. After sandblasting, the surface of the part to be repaired has a suitable roughness, and the bonding force with the repairing material is enhanced.

[0019] B. Use clean compressed air to clean up the dust and other attachments on the parts that have been sandblasted in step A.

[0020] C. Use a cotton swab dipped in hydrofluoric acid with a concentration of 17%-20% to wipe the polished part treated in step B, and wipe it 3-5 times for 16-20 seconds each time; this concentration of hydrofluoric acid can play a very good r...

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Abstract

The invention relates to the technical field of ceramic repairing, in particular to a ceramic repairing method. The method comprises the following steps: firstly polishing a defect part; then carryingout sand blasting on the ground part with a micro sand blasting machine; then treating the sand blasted part with a cotton swab dipped in hydrofluoric acid; completely flushing hydrofluoric acid at the part; blow-drying the part; filling the part with a repairing material and compacting; after the repairing material is dried, polishing the repaired part to make the repaired part smoothly transitwith the surrounding ceramic green body and accord with the curved surface profile of the original ceramic green body; glazing the repaired part, and firing the repaired ceramic green body. Accordingto the method disclosed by the invention, the binding force between the repairing material and the ceramic body is strong, so that the ceramic body is not easy to crack during firing; and the surfaceof the repairing material is polished after the repairing material is dried, so that the influence of shrinkage of the repairing material after drying on the surface flatness is avoided, and repairingtraces of a repaired part and an unrepaired part are not obvious.

Description

technical field [0001] The invention relates to the technical field of ceramic repair, in particular to a ceramic repair method. Background technique [0002] In the production of ceramics, there will be a certain proportion of ceramic products with defects such as spots, pits and partial shedding. These defects can be repaired by refiring after repairing. The current repair technology mainly improves the success rate of repair through the improvement of repair materials, while ignoring the improvement of repair methods. When refiring, the ceramic body has been fired into a dense individual, and the degree of bonding of the repair material with it after refiring is far from 100%, and there are a large number of tiny gaps at the junction, resulting in poor bonding between the two. It is easy to crack when fired. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for repairing ceramics in view of the above-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/89C04B41/91B24B1/00B24C1/00B28B11/04B28B11/08
CPCC04B41/89C04B41/52C04B41/91C04B41/5353B24B1/00B24C1/00B28B11/08B28B11/0845B28B11/0872B28B11/044C04B41/5025C04B41/5022C04B41/5037C04B41/4596C04B41/0072
Inventor 夏剑石夏柱礼张宏兴张丽萍
Owner ZHONGTAO SANITARY WARO MFG CO LTD OF TANGSHAN
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