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Method for manufacturing dental cobalt-chromium ceramic alloy disc material

A production method and cobalt-chromium technology, which are applied in dentistry, medical science, filling teeth, etc., can solve problems such as affecting the health of workers, a large amount of garbage, smoke and dust, and low denture processing efficiency, and achieve good compactness and good biological properties. Compatibility, simple production method

Inactive Publication Date: 2013-10-09
南通今日高科技新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the processing efficiency of traditional dentures is low, the labor cost is high, and a large amount of garbage, smoke and dust are generated, resulting in a poor workshop environment and affecting the health of the staff

Method used

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  • Method for manufacturing dental cobalt-chromium ceramic alloy disc material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one: A, preparation charge: prepare cobalt (Co) 61%, chromium (Cr) 26%, molybdenum (Mo) 4.5%, tungsten (W) 6.5%, titanium (Ti) 0.5%, silicon ( Si) 0.5%, iron (Fe) 0.3%, manganese (Mn) 0.7%; B. Put the charge into the furnace for vacuum smelting and vacuum casting, and then roll it with a rolling mill. The rolling temperature is 1200°C, and the rolling deformation It is 2.6%, and the rolling pass is 6 passes to form a semi-finished material; C. After the semi-finished material is processed by wire cutting and lathe turning according to the required thickness, dental materials of different thicknesses suitable for CAD / CAM tooth carving machines are obtained. A new material for cobalt-chromium ceramic alloy discs.

Embodiment 2

[0020] Embodiment two: A, preparation charge: prepare cobalt (Co) 62%, chromium (Cr) 25.5%, molybdenum (Mo) 4.5%, tungsten (W) 7%, titanium (Ti) 0.2%, silicon ( Si) 0.1%, iron (Fe) 0.2%, manganese (Mn) 0.5%; B. Put the furnace charge into the furnace for vacuum smelting and vacuum casting, and then roll it with a rolling mill. The rolling temperature is 1250°C, and the rolling deformation It is 3.7%, and the rolling pass is 4 passes to form a semi-finished material; C. After the semi-finished material is processed by wire cutting and lathe turning according to the required thickness, dental materials of different thicknesses suitable for CAD / CAM tooth carving machines are obtained. A new material for cobalt-chromium ceramic alloy discs.

Embodiment 3

[0021] Embodiment three: A, prepare charge: prepare cobalt (Co) 60.5%, chromium (Cr) 25.5%, molybdenum (Mo) 5%, tungsten (W) 7%, titanium (Ti) 0.7%, silicon ( Si) 0.3%, iron (Fe) 0.4%, manganese (Mn) 0.6%; B. Put the furnace charge into the furnace for vacuum smelting and vacuum casting, and then roll it with a rolling mill. The rolling temperature is 1300°C, and the rolling deformation It is 4.8%, and the rolling pass is 2 passes to form a semi-finished material; C. After the semi-finished material is processed by wire cutting and lathe turning according to the required thickness, dental materials of different thicknesses suitable for CAD / CAM tooth carving machines are obtained. A new material for cobalt-chromium ceramic alloy discs.

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Abstract

The invention relates to a method for manufacturing a dental cobalt-chromium ceramic alloy disc material suitable for a CAD / CAM (Computer Aided Design / Computer Aided Manufacturing) tooth carving machine, belonging to the technical field of a dental material. The method comprises the following steps of: preparing furnace charge, then putting the furnace charge into a furnace for vacuum melting and vacuum casting, and rolling with a rolling mill, wherein the rolling temperature is 1200-1300 DEG C, the rolling deformation is 2.6-4.8 percent, and the rolling pass is 2-6 passes; forming a semi-finished product material; and finally according to the needed thickness, causing the semi-finished product material to be subjected to wire cutting and turning of a turning lathe to obtain the dental cobalt-chromium ceramic alloy disc materials with different thicknesses suitable for the CAD / CAM tooth carving machines. The dental cobalt-chromium ceramic alloy disc material provided by the technical scheme has the advantages of smooth and clean surface, good compactness, no crack, good biocompatibility with a human body, good corrosion resistance, appropriate strength, hardness, extensibility and thermal expansion properties and good metal and ceramic powder bonding strength.

Description

technical field [0001] The invention relates to the technical field of dental materials, in particular to a method for manufacturing a dental cobalt-chromium porcelain alloy disc material suitable for CAD / CAM tooth carving machines. Background technique [0002] Dental cobalt-chromium porcelain alloy materials are mainly used to make dental fixed and restoration porcelain alloy crowns and crown bridges. It is a commonly used medical biometal alloy material. The defect and loss of teeth is a common oral trauma, which not only affects the appearance, but also directly affects people's health. As a branch of medical biomaterials, dental materials are not only required to be implanted in the human oral cavity, but also required to exist for a long time in the specific environment of the oral cavity. Porcelain-fused-to-metal is a new technology for oral restoration of tooth defects. It uses metal as a substrate and burns a layer of ceramics on its surface to make the two firmly ...

Claims

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Application Information

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IPC IPC(8): A61C5/10C22C19/07A61C5/77
Inventor 姚向东张杏耀孙系
Owner 南通今日高科技新材料股份有限公司
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