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Chemical process of nickel-titanium alloy material

A nickel-titanium alloy and chemical processing technology, which is applied in the field of processing and forming of nickel-titanium alloy materials to achieve the effects of high processing efficiency, low cost and stable chemical reaction process.

Active Publication Date: 2006-02-15
INNOVATIVE MATERIAL & DEVICES
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a chemical processing method for nickel-titanium alloy materials, to solve the technical problem that nickel-titanium alloys can be rapidly formed without using traditional cutting methods

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  • Chemical process of nickel-titanium alloy material
  • Chemical process of nickel-titanium alloy material
  • Chemical process of nickel-titanium alloy material

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Embodiment Construction

[0026] The present invention uses the principle that nickel and titanium can be dissolved in nitric acid and hydrofluoric acid respectively to replace the general metal cutting and forming method to manufacture nickel-titanium alloy products, so that it can avoid the occurrence of adhesion between nickel-titanium alloy and cutting tools during processing. Many questions came. In order to prevent the nickel-titanium alloy in the non-processed part from being dissolved in the reaction solution, the present invention should first prepare the non-processed part of the nickel-titanium alloy workpiece to cover the protective layer. The protective layer is made of soft non-metallic materials (such as adhesive tape, wax, glue, etc.). If only the processing part of the workpiece is immersed in the reaction solution, and the rest of the non-processing parts are not in contact with the reaction solution, this procedure can be exempted, and the non-processing part does not need to be cove...

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Abstract

The chemical preparation method for nickel-titanium alloy material, which is characterized in that: 1) covering the non-working position with soft nonmetal material to form protective layer; 2) dipping the alloy piece into reaction solution contained with hydrofluoric acid, nitric acid and water to required degree; 3) taking out and clearing the alloy piece in flowing water; 4) putting the piece in dehydrogenation furnace for one hour at 300Deg. This invention solves the rapid form problem failed by traditional technique.

Description

Technical field: [0001] The invention relates to metal forming, in particular to a processing and forming method for nickel-titanium alloy materials. Background technique: [0002] Nickel-titanium alloy is a new kind of metal material. Due to its excellent mechanical properties and chemical stability, it has been gradually recognized and applied in various industries, especially in some dental medical appliances, which tend to replace traditional stainless steel materials. However, a huge shortcoming of nickel-titanium alloys is that it is not suitable to be formed by traditional machining methods, because nickel-titanium alloys often bond with tools during cutting, resulting in damage to workpieces and tools, and low production efficiency. When the size of the alloy workpiece is very small, the difficulty of this kind of machining is even more difficult. Invention content: [0003] The object of the present invention is to provide a chemical processing method for nickel-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/04
Inventor 龙小平
Owner INNOVATIVE MATERIAL & DEVICES
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