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Electrophoresis deposition-laser cladding composite processing method for cobalt-chromium baked porcelain false tooth

A technology of electrophoretic deposition and laser cladding, which is applied in the field of ceramic dentures, can solve the problems of poor repeatability and excessive reliance on manual coating in the processing of ceramic dentures, and achieve the effects of convenient operation, easy control of the process, and simple equipment

Active Publication Date: 2016-11-23
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to develop an electrophoretic deposition-laser cladding composite processing method for cobalt-chromium porcelain dentures. Firstly, electrophoretic deposition is used to deposit a certain thickness of porcelain layer on the surface of dental cobalt-chromium alloy, and then laser cladding is used. Cladding the porcelain layer on the dental cobalt-chromium alloy to prepare dental cobalt-chromium alloy porcelain dentures. This method can solve the shortcomings of excessive dependence on manual coating and poor repeatability in the processing of porcelain dentures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Mix 60mL of ethanol and 40mL of water, add 0.5g of triethanolamine and 2.5g of Vita (VITA VMK 95) porcelain powder for dispersion, and prepare a suspension by magnetic stirring and ultrasonic oscillation.

[0025] In step 2, the dental cobalt-chromium alloy base crown was polished with sandpaper and pretreated by sandblasting, then ultrasonically cleaned with acetone, deionized water, and ethanol, and dried for later use. In the electrophoretic deposition system, the dental cobalt-chromium alloy base crown was used as the anode, and the platinum sheet electrode was used as the cathode. The electrophoretic deposition voltage was 60V, the distance between the electrodes was 2 cm, and the electrophoretic deposition time was 15 minutes. After the deposition was completed, the sample was taken out and placed in an electric blast drying oven, and dried at 60°C for 8 hours.

[0026] Step 3, using the method of laser cladding, cladding the porcelain layer on the dental ...

Embodiment 2

[0028] Step 1. Mix 60mL of methanol and 40mL of water, add 0.3g of triethanolamine and 1.5g of SHOFU (Vintage Halo porcelain powder) porcelain powder to disperse, and prepare a suspension by magnetic stirring and ultrasonic oscillation.

[0029] Step 2: After the dental cobalt-chromium-molybdenum alloy base crown is polished with sandpaper and pretreated by sandblasting, it is ultrasonically cleaned with acetone, deionized water, and ethanol, and dried for later use. In the electrophoretic deposition system, the dental cobalt-chromium-molybdenum alloy base crown was used as the anode, and the platinum sheet electrode was used as the cathode. The electrophoretic deposition voltage was 80V, the distance between the electrodes was 3 cm, and the electrophoretic deposition time was 20 minutes. After the deposition was completed, the sample was taken out and placed in an electric blast drying oven, and dried at 60°C for 8 hours.

[0030] Step 3, using the method of laser cladding, c...

Embodiment 3

[0032] Step 1: Mix 50mL of propanol and 50mL of water, add 0.8g of triethanolamine and 3.0g of HeraCeram porcelain powder for dispersion, and prepare a suspension by magnetic stirring and ultrasonic oscillation.

[0033] Step 2. After the dental cobalt-chromium-molybdenum-tungsten alloy base crown is polished with sandpaper and pretreated by sandblasting, it is ultrasonically cleaned with acetone, deionized water, and ethanol, and dried for later use. In the electrophoretic deposition system, the dental titanium-tungsten alloy base crown is used as the anode, and the platinum sheet or graphite electrode is used as the cathode. The electrophoretic deposition voltage is 30V, the distance between the electrodes is 1 cm, and the electrophoretic deposition time is 10 minutes. After the deposition was completed, the sample was taken out and placed in an electric blast drying oven, and dried at 60°C for 8 hours.

[0034] Step 3, using the method of laser cladding, cladding the porcelai...

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PUM

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Abstract

The invention discloses an electrophoresis deposition-laser cladding composite processing method for a cobalt-chromium baked porcelain false tooth. The method includes the steps that electrophoresis is firstly adopted for depositing a porcelain layer on the surface of a dentistry cobalt-chromium alloy substrate material, and then laser cladding is adopted for cladding the porcelain layer; and the cobalt-chromium baked porcelain false tooth is manufactured. According to the method, the defects that processing of the baked porcelain false tooth excessively depends on manual coating, and repeatability is poor can be overcome, and the method is widely applied to the processing process of the cobalt-chromium baked porcelain false tooth.

Description

technical field [0001] The invention relates to the field of denture ceramics, in particular to an electrophoretic deposition-laser cladding composite processing method for cobalt-chromium ceramic dentures. 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. Dental cobalt-chromium alloy has been widely used in the oral cavity because it does not contain nickel and beryllium elements that are harmful to the human body and is not prone to allergies. Compared with nickel-chromium porcelain teeth, dental cobalt-chromium alloy porcelain teeth have higher corrosion resistance and better biocompatibility, and are not prone to black gums or bleeding gums. They are safe, reliable and relatively low in price. They are gradually replacing nickel-chromium alloys. Porcelai...

Claims

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Application Information

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IPC IPC(8): C25D13/02C23C24/10
CPCC23C24/10C25D13/02
Inventor 郭立童陈啸远刘学梅徐杰陶庆樊宇冯培忠强颖怀
Owner CHINA UNIV OF MINING & TECH
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