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A kind of surface treatment process of titanium alloy surgical instrument

A surgical instrument and surface treatment technology, applied in the direction of surface reaction electrolytic coating, coating, electrolytic coating, etc., can solve the problems of low preparation efficiency, small film thickness, slow film forming speed, etc., achieve economic production efficiency, improve Wear resistance, effect of improving wear resistance and corrosion resistance

Active Publication Date: 2016-08-17
广东健齿生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, TiN, TiC, SiC, Ti(C,N) and other coatings can be obtained on the surface of titanium metal substrates by plasma chemical vapor deposition, ion implantation, laser cladding and other methods, but the film formation speed is relatively slow, and the film layer The thickness is small, the preparation efficiency is low, and the cost is high

Method used

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  • A kind of surface treatment process of titanium alloy surgical instrument
  • A kind of surface treatment process of titanium alloy surgical instrument
  • A kind of surface treatment process of titanium alloy surgical instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the titanium alloy surgical instrument surface treatment process of the present invention includes 4 steps of segmented sandblasting treatment, chemical polishing treatment, anodic oxidation treatment and ultraviolet light reduction treatment, specifically as follows: (1) segmented sandblasting treatment: adopt 80 mesh TiO 2 The particles are sandblasted on the hand-held part of the titanium alloy surgical instrument. The process conditions of the sandblasting treatment are: the compressed air pressure is 6bar, the spraying distance is 40mm, and the spraying time is 10sec; figure 2 As shown, after sandblasting on the surface of titanium alloy, the uneven surface morphology appears obviously;

[0028] (2) Chemical polishing treatment: place the titanium alloy surgical instruments treated in step (1) in a polishing solution with a volume ratio of dilute nitric acid: hydrofluoric acid: water for 2 minutes for chemical polishing; remove surface ...

Embodiment 2

[0038] (1) Segmented sandblasting treatment: use 40-mesh corundum to perform sandblasting treatment on the hand-held section of titanium alloy surgical instruments. The process conditions of sandblasting treatment: compressed air pressure is 6bar, spraying distance is 60mm, and spraying time is 20sec;

[0039] (2) Chemical polishing treatment: place the titanium alloy surgical instrument treated in step (1) in a polishing solution with a volume ratio of dilute nitric acid: hydrofluoric acid: water for 1 min; remove surface impurities; The treated titanium alloy surgical instruments were respectively placed in acetone, 95% ethanol, and deionized water for ultrasonic cleaning for 10 minutes, and dried;

[0040] (3) Anodizing treatment: Anodize the titanium alloy surgical instruments after step (2), use 6% (v / v) hydrofluoric acid aqueous solution as the electrolyte, voltage: 30V, under normal temperature conditions, the anode The oxidation time was 45 minutes; the treated titaniu...

Embodiment 3

[0048] (1) Segmented sand blasting treatment: 60 mesh TiO is used 2 The particles are sandblasted on the hand-held part of the titanium alloy surgical instrument. The process conditions of the sandblasting treatment are: compressed air pressure 4bar, spraying distance 50mm, spraying time 25sec;

[0049] (2) Chemical polishing treatment: place the titanium alloy surgical instrument treated in step (1) in a polishing solution with a volume ratio of dilute nitric acid:hydrofluoric acid:water for 2 minutes; remove surface impurities; The treated titanium alloy surgical instruments were respectively placed in acetone, 95% ethanol, and deionized water for ultrasonic cleaning for 10 minutes, and dried;

[0050] (3) Anodizing treatment: Anodize the titanium alloy surgical instruments after step (2), use 7% (V / V) hydrofluoric acid aqueous solution as the electrolyte, voltage: 40V, under normal temperature conditions, the anode The oxidation time was 45 minutes; the treated titanium al...

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Abstract

The invention discloses a surface treatment process of a titanium alloy surgical instrument, comprising the following steps: segmented sand blasting treatment; chemical polishing treatment; anodic oxidation treatment; and ultraviolet light reduction treatment. The invention has simple process, good repeatability, economy and high production efficiency. The surgical instrument prepared by using the process of the invention has the characteristics of anti-skid, wear resistance, corrosion resistance and the like. It has good long-term antibacterial effect on common bacteria, and also has anti-adhesion effect on common inflammatory bacteria.

Description

technical field [0001] The invention relates to a medical metal surface treatment process, in particular to a titanium alloy surgical instrument surface treatment process. Background technique [0002] Traditional medical surgical instruments are generally made of stainless steel or carbon steel with chrome-plated surfaces. Surgical instruments made of this material are relatively heavy, with high surface brightness and easy reflection. Because titanium alloy has the advantages of light weight and high strength compared with other metal materials, it has been promoted to the field of surgical medical devices in recent years. However, it should be pointed out that titanium alloy parts are easy to scratch due to low surface hardness; long-term use will gradually reduce the quality of titanium alloy parts and reduce the service life; the antibacterial effect is poor, and it is easy to carry bacteria. [0003] In view of the above problems, various surface treatment methods are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/26
Inventor 欧阳江林孙学通陈贤帅
Owner 广东健齿生物科技有限公司