A kind of preparation method of ha coating on the surface of titanium alloy substrate

A technology of titanium alloy and substrate, which is applied in the field of preparation of HA coating on the surface of titanium alloy substrate, can solve the problem of reduced biological activity of the coating, and achieve the effect of increasing the content of HA

Active Publication Date: 2022-03-15
锐百顺涂层科技(苏州)有限公司
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Problems solved by technology

However, the high temperature during the preparation process of laser cladding causes the decomposition of HA and the production of impurity phases, resulting in a decrease in the biological activity of the coating.

Method used

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  • A kind of preparation method of ha coating on the surface of titanium alloy substrate
  • A kind of preparation method of ha coating on the surface of titanium alloy substrate

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Embodiment Construction

[0016] In order to better understand the essence of the present invention, the present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0017] The present invention is suitable for the field of biomedical materials, especially for the preparation of medical implant coatings, specifically comprising the following steps:

[0018] Step 1: Pretreat the surface of the titanium alloy substrate.

[0019] After grinding the surface of the titanium alloy substrate, it was cleaned by ultrasonic vibration with distilled water, dried, sterilized by radiation, and placed for later use. The temperature of ultrasonic vibration cleaning is 50°C, and the ultrasonic working frequency is between 20 and 30KHz.

[0020] Step 2: The spray powder is sprayed on the surface of the treated titanium alloy substrate by laser cladding. The spraying powder includes mixed powder and titanium powder, and the mixed powder includes hydroxyapatite...

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Abstract

The invention discloses a method for preparing an HA coating on the surface of a titanium alloy substrate, which belongs to the field of biomedical materials and comprises the following steps: pretreating the surface of the titanium alloy substrate; spraying spray powder on the treated titanium alloy by laser cladding On the surface of the substrate, the spraying powder includes mixed powder and titanium powder, and the mixed powder includes hydroxyapatite powder and calcium carbonate powder; the sprayed titanium alloy substrate is put into alkaline solution for electric polarization treatment. The invention can effectively increase the content of HA, thereby improving the biological activity of the coating.

Description

technical field [0001] The invention relates to a method for preparing an HA coating on the surface of a titanium alloy substrate, belonging to the field of biomedical materials. Background technique [0002] Titanium and titanium alloys have been used as materials for the repair of human hard tissues and orthopedic implants because of their excellent comprehensive mechanical properties and processing properties. However, when pure metal or its metal alloys are implanted in the body, the oxide film on the surface of the metal implant will be affected and destroyed due to the corrosive environment in the body, and the shiny metal surface will be exposed to body fluids. A large amount of metal ions are released into body fluids, and the released metal ions lead to various phenomena harmful to human health, such as metal allergy, granuloma, and even liver cancer. In order to better prepare the ideal implant prosthesis, according to the clinical needs, a coating is prepared on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/06A61L27/32A61L27/30A61L27/54C23C24/10
CPCA61L27/06A61L27/32A61L27/306A61L27/54C23C24/103A61L2430/02A61L2300/412
Inventor 张朝勇
Owner 锐百顺涂层科技(苏州)有限公司
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