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Hydrophobic hard coating suitable for high-frequency electrotome and preparation method of hydrophobic hard coating

A technology of high-frequency electric knife and hard coating, which is applied in the direction of coating, metal material coating process, vacuum evaporation plating, etc., can solve the problems of passivation, wear resistance and poor thermal conductivity, and avoid passivation The effect of electric knife, improving coating performance and avoiding tissue carbonization

Active Publication Date: 2020-12-29
宁波云涂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of passivation, wear resistance and poor thermal conductivity of high-frequency electric knife with PTFE coating, and provide a hydrophobic hard coating suitable for high-frequency electric knife and its preparation method

Method used

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  • Hydrophobic hard coating suitable for high-frequency electrotome and preparation method of hydrophobic hard coating
  • Hydrophobic hard coating suitable for high-frequency electrotome and preparation method of hydrophobic hard coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The high-frequency electric knife is used as the base material, and the material is 304 stainless steel. The specific implementation steps are as follows:

[0034] 1) Clean the stainless steel surface with acetone, alcohol and deionized water in turn, and dry it with a hair dryer;

[0035] 2) The coating is deposited by multi-arc ion plating and magnetron sputtering composite equipment. The targets used are 99.99% pure Cr target, 99.99% pure PTFE target and TiAl target. The molar ratio of Ti and Al in the TiAl target The ratio is 67:33, and the gases used are argon and nitrogen with a purity of 99.99%;

[0036] 3) The Cr layer was deposited by multi-arc ion plating, the working pressure was 0.4Pa, the substrate bias was -450V, the substrate temperature was room temperature, the Cr target sputtering time was 10min, and the atmosphere in the sputtering chamber was argon;

[0037] 4) The CrTiAlN-PTFE layer was deposited by multi-arc ion plating and magnetron sputtering co...

Embodiment 2

[0043] The high-frequency electric knife is used as the base material, and the material is titanium alloy. The specific implementation steps are as follows:

[0044] 1) Clean the surface of the titanium alloy with acetone, alcohol and deionized water in sequence, and dry it with a hair dryer;

[0045] 2) The coating is deposited by multi-arc ion plating and magnetron sputtering composite equipment. The targets used are 99.99% pure Cr target, 99.99% pure PTFE target and TiAl target. The molar ratio of Ti and Al in the TiAl target The ratio is 67:33, and the gases used are argon and nitrogen with a purity of 99.99%;

[0046] 3) The Cr layer is deposited by multi-arc ion plating, the working pressure is 0.2Pa, the substrate bias is -400V, the substrate temperature is room temperature, the Cr target sputtering time is 5min, and the atmosphere in the sputtering chamber is argon;

[0047] 4) The CrTiAlN-PTFE layer was deposited by multi-arc ion plating and magnetron sputtering comp...

Embodiment 3

[0050] The high-frequency electric knife is used as the base material, and the material is tungsten alloy. The specific implementation steps are as follows:

[0051] 1) Clean the surface of the tungsten alloy with acetone, alcohol and deionized water in sequence, and dry it with a hair dryer;

[0052] 2) The coating is deposited by multi-arc ion plating and magnetron sputtering composite equipment. The targets used are 99.99% pure Cr target, 99.99% pure PTFE target and TiAl target. The molar ratio of Ti and Al in the TiAl target The ratio is 67:33, and the gases used are argon and nitrogen with a purity of 99.99%;

[0053] 3) The Cr layer is deposited by multi-arc ion plating, the working pressure is 0.5Pa, the substrate bias voltage is -350V, the substrate temperature is room temperature, the Cr target sputtering time is 15min, and the atmosphere in the sputtering chamber is argon;

[0054] 4) The CrTiAlN-PTFE layer was deposited by multi-arc ion plating and magnetron sputte...

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Abstract

The invention discloses a hydrophobic hard coating suitable for a high-frequency electrotome and a preparation method of the hydrophobic hard coating, and belongs to the field of hydrophobic coatings.The preparation method comprises the following steps: (1) taking the high-frequency electrotome as a matrix, sputtering a Cr target by adopting multi-arc ion plating, and depositing a Cr layer on thematrix; and (2) sputtering a Cr target and a TiAl target by adopting multi-arc ion plating to enable sputtering ions to react with N2 in a sputtering cavity, depositing CrTiAlN on the Cr layer, meanwhile, sputtering a PTFE target by adopting radio frequency magnetron sputtering to obtain a co-sputtered CrTiAlN-PTFE coating, and obtaining the hydrophobic hard coating suitable for the high-frequency electrotome after co-sputtering is completed. According to the preparation method, multi-arc ion plating and magnetron sputtering composite equipment is adopted for coating deposition, and the advantages of the two physical vapor deposition methods can be brought into full play: the deposition rate of the coating prepared through the multi-arc ion plating is high, and the binding force is high;and a non-metal coating can be prepared through the magnetron sputtering, and the coating is compact and uniform.

Description

technical field [0001] The invention belongs to the field of hydrophobic coatings, in particular to a hydrophobic hard coating suitable for high-frequency electric knife and a preparation method thereof. Background technique [0002] There are two types of surface wetting states: hydrophilic and hydrophobic, usually expressed by the surface contact angle. When the surface contact angle is greater than 90°, it is hydrophobic, and when the surface contact angle is less than 90°, it is hydrophilic. Hydrophobic surfaces are characterized by low surface energy and high resistance to adhesion. [0003] Polytetrafluoroethylene (PTFE) is the most common hydrophobic material with low surface energy. It is widely used on the surface of medical high-frequency electric knife. Its excellent hydrophobic properties are used to prevent tissue adhesion on the surface of electric knife during operation. and carbonization. However, PTFE is an organic polymer material with a certain degree of...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C14/16C23C14/35C23C14/06
CPCC23C14/325C23C14/16C23C14/35C23C14/06C23C14/0021
Inventor 马洋陈超康强
Owner 宁波云涂科技有限公司
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