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Titanium surface processing method capable of improving titanium and ceramic bonding strength

A combination of strength and surface processing technology, applied in the direction of dentures, etc., can solve the problems of residual stress, easy embedding of alumina particles, weakening titanium-porcelain mechanical fit, etc., to improve mechanical fit, surface roughness and corrosion resistance The effect of improving mechanical fitting and titanium-porcelain bonding strength

Inactive Publication Date: 2014-04-16
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a titanium surface processing method that improves the bonding strength of titanium-ceramic to solve the problem that during the process of sandblasting the titanium surface with alumina particles, the alumina particles are easily embedded into the titanium surface and residual stress will be generated at the titanium-ceramic interface , to weaken the problem of mechanical fitting between titanium-porcelain

Method used

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  • Titanium surface processing method capable of improving titanium and ceramic bonding strength
  • Titanium surface processing method capable of improving titanium and ceramic bonding strength
  • Titanium surface processing method capable of improving titanium and ceramic bonding strength

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: design surface density is 0.2, size is 300 μ m circular pit micron pattern and compile the operation control program of laser beam, put the sample after polishing on the laser surface microstructure processing equipment and carry out the laser processing of surface micron pattern, Then run the program, control the energy and scanning speed of the laser through the program, and process the designed micron pattern on the sample.

[0018] Ultrasonic waves are used to clean the sample after laser processing, and then according to the ISO9693 standard, in the ceramic furnace, the middle part of the sample processed with surface micron patterns is fused layer by layer to sinter titanium special bonding porcelain and color-shielding porcelain , body porcelain three-layer porcelain powder; the width of the composite porcelain layer of the three-layer porcelain powder is 8mm; the thickness and width of the porcelain layer are controlled by precision fixtures, and ea...

Embodiment 2

[0023] Embodiment 2: design the surface density of 0.3, the size of the round pit micron pattern of 300 μm and compile the operation control program of the laser beam, put the polished sample on the laser surface microstructure processing equipment to carry out the laser processing of the surface micron pattern, Then run the program, control the energy and scanning speed of the laser through the program, and process the designed micron pattern on the sample.

[0024] Ultrasonic waves are used to clean the sample after laser processing, and then according to the ISO9693 standard, in the ceramic furnace, the middle part of the sample processed with surface micron patterns is fused layer by layer to sinter titanium special bonding porcelain and color-shielding porcelain , body porcelain three-layer porcelain powder; the width of the composite porcelain layer of the three-layer porcelain powder is 8mm; the thickness and width of the porcelain layer are controlled by precision fixtu...

Embodiment 3

[0026] Embodiment 3: design a square pit with a surface density of 0.2 and a size of 300 μm and compile the operation control program of the laser beam, place the polished sample on the laser surface microstructure processing equipment for laser processing of the surface micrometer pattern, Then run the program, control the energy and scanning speed of the laser through the program, and process the designed micron pattern on the sample.

[0027] Ultrasonic waves are used to clean the sample after laser processing, and then according to the ISO9693 standard, in the ceramic furnace, the middle part of the sample processed with surface micron patterns is fused layer by layer to sinter titanium special bonding porcelain and color-shielding porcelain , body porcelain three-layer porcelain powder; the width of the composite porcelain layer of the three-layer porcelain powder is 8mm; the thickness and width of the porcelain layer are controlled by precision fixtures, and each layer of...

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Abstract

The invention relates to a titanium surface processing method capable of improving titanium and ceramic bonding strength, belonging to a laser processing method of pure titanium ceramic of the dental department, which comprises the following steps that: a sample which is polished is placed on laser surface micron pattern processing equipment to be subject to surface micron pattern processing; micron patterns of different morphologies can be obtained through the control of a computer program; self-prepared titanium special ceramic powder is respectively fused and attached at the middle part of the titanium surface micron pattern processing surface; and the titanium ceramic bonding strength of a titanium ceramic sample after the surface micron pattern processing is tested by adopting three-point bending binding strength. According to the invention, the titanium sample with the surface micron patterns is processed, and combined with the self-prepared titanium special bonding ceramic, the titanium-ceramic strength can reach 45-50 Mpa. According to the invention, by the titanium surface micron patterns, the mechanical embedding and titanium-ceramic bonding strength can be remarkably improved, the operation is simple, the processing is quick, the laser energy, light spot diameter, scanning speed and other process parameters can be independently controlled, different micron patterns can be obtained by the compute program, and the preparation efficiency is high.

Description

technical field [0001] The invention relates to a processing method for dental pure titanium porcelain, in particular to a titanium surface processing method for improving the bonding strength of titanium porcelain. Background technique [0002] Dental ceramic materials have become the most important method for the treatment of tooth loss due to their good biocompatibility, wear resistance and corrosion resistance, and natural and lifelike color since their clinical application. Titanium-ceramic dentures have excellent biocompatibility, are beautiful and safe, and are low in price. They are one of the hotspots in current oral restoration research. The thermal expansion coefficient of titanium (8~10×10 -6 ℃) is much lower than that of gold alloy and nickel-chromium alloy (14~15×10 -6 ℃), the expansion coefficients of titanium and traditional ceramics are very different, and it is necessary to prepare low-melting, low-expansion-coefficient titanium ceramic powders for use in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/08
Inventor 郭立童刘学梅郭天文张茜张晓彬朱亚波许程
Owner CHINA UNIV OF MINING & TECH
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