A kind of hydrophobic hard coating suitable for high-frequency electric knife and its preparation method

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 Electric knife, advanced design idea, excellent effect

Active Publication Date: 2022-05-13
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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  • A kind of hydrophobic hard coating suitable for high-frequency electric knife and its preparation method
  • A kind of hydrophobic hard coating suitable for high-frequency electric knife and its preparation method

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 high-frequency electric knife and a preparation method thereof, belonging to the field of hydrophobic coating. The preparation method of the present invention includes: (1) using a high-frequency electric knife as a substrate, adopting multi-arc ion plating to sputter a Cr target, and depositing a Cr layer on the substrate; (2) adopting multi-arc ion plating to sputter a Cr target , TiAl target, sputtering ions and N in the sputtering chamber 2 Reaction, depositing CrTiAlN on the Cr layer, and using radio frequency magnetron sputtering PTFE target at the same time to obtain a co-sputtered CrTiAlN-PTFE coating, after co-sputtering, a hydrophobic hard coating suitable for high-frequency electric knife is obtained. The inventive preparation method uses multi-arc ion plating and magnetron sputtering composite equipment for coating deposition, which can give full play to the advantages of the two physical vapor deposition methods: multi-arc ion plating prepares coatings with fast deposition rate and strong binding force ; Magnetron sputtering can prepare non-metallic coatings, and the coatings are dense 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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Patent Type & Authority Patents(China)
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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