Method for obtaining high-adhesion nano coating and device thereof

A nano-coating and high-adhesion technology, applied in the direction of pressure inorganic powder coating, etc., can solve the problems that the residual tensile stress of the coating cannot be completely eliminated, hindered, and the adhesion between the coating and the substrate cannot be improved, and the residual tensile stress can be eliminated. Stress, improved mechanical properties, low cost effect

Active Publication Date: 2012-11-14
SANMENXIA ZHONGYUAN PRECISION
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the existing nano-coating preparation technology cannot improve the adhesion between the coating and the substrate, and cannot completely eliminate the residual tensile stress in the coating. The coating has good mechanical properties; and it can significantly improve the adhesion between the coating and the substrate. A method of obtaining a high-adhesion nano-coating through ultra-low temperature, constant high pressure, and hindering extrusion

Method used

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  • Method for obtaining high-adhesion nano coating and device thereof
  • Method for obtaining high-adhesion nano coating and device thereof
  • Method for obtaining high-adhesion nano coating and device thereof

Examples

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Embodiment 1

[0039] like figure 2 shown.

[0040] A method of obtaining high-adhesion nano-coatings, through the occlusal effect and penetration effect between the coating and the substrate, combined with ultra-low temperature and constant high pressure to hinder extrusion, the adhesion between the coating and the substrate is fundamentally improved. At ultra-low temperatures, the substrate will Severe shrinkage, the laser-induced impact force hinders the movement of the substrate from extruding the coating, causing the coating and the substrate to shrink under constant high pressure, which eventually leads to a more compact combination of coating atoms and substrate atoms, and the occurrence of occlusal effects and penetration effects, from Fundamentally significantly improve the adhesion of the coating to the substrate, such as figure 2 . It includes the following steps:

[0041] A) Place the workpiece 22 coated with a layer of nano powder 21 and the black paint protective layer 20 ...

Embodiment 2

[0058] like figure 1 , 3 shown.

[0059] A device for obtaining high-adhesion nano-coatings, including a laser-induced shock system, a cryogenic treatment system, an auxiliary control system, an adjustable workbench, and a heating platform.

[0060] The laser shock system includes a laser 3 , a mirror 2 , a laser beam expander 1 , a high-pressure resistant glass 18 , a constrained layer 19 and a black paint 20 . Wherein, the laser 3 is arranged above the working chamber 14, and the laser beam expander 1 is clamped by a horizontally moving manipulator: when the laser-induced impact produces a coating, the manipulator clamps the laser beam expander 1 away from the laser light path ( figure 1 shown by the dotted line in the middle); when laser-induced shock treatment of the coating, the manipulator holds the laser beam expander 1 at the center of the laser light path ( figure 1 Middle solid line position), the spot area of ​​the beam emitted by the laser 3 after passing throug...

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Abstract

The invention discloses a method for obtaining high-adhesion nano coating and a device thereof. The method comprises the following steps: impacting nano powder at 80-150 degrees centigrade by laser induction to obtain a nano coating, then, carrying out impacting treatment on the coating by laser induction at ultralow temperature by dint of ultralow temperature constant-high-pressure block and extrusion technology; and the device comprises a laser induction impacting system, a deep cooling treatment system, an auxiliary control system, an adjustable working platform, a heating platform and the like. According to the invention, the ultralow temperature constant-high-pressure block and extrusion technology is used; at the ultralow temperature, a base body is contracted sharply; the base body is prevented from outwardly extruding the coating by laser induction impact force; thus, the coating and the base body are contracted at constant high pressure; finally, coating atoms are combined with base body atoms more compactly; in addition, occlusion effect and penetration effect happen so as to fundamentally solve a difficult problem of poor adhesion of the coating and the base body.

Description

technical field [0001] The invention relates to a method and device for metal surface treatment, especially a method and device for preparing nano-coatings by using deep cooling treatment and laser-induced impact, in particular, a method and device for obtaining high adhesion through ultra-low temperature and constant high pressure hindering extrusion Nanocoating method. Background technique [0002] At present, nano-coating materials are widely used in the fields of cutting tools and microelectronics due to their good mechanical properties, electrical conductivity and other specific functions. For the nano-coating, the most ideal state is: after the nano-coating is obtained, there is no residual stress or low residual compressive stress inside the coating, and strong adhesion can be achieved. [0003] However, the current coating methods mainly include: (1) deposition process; (2) thermal spraying; (3) laser cladding nano-coating. [0004] For the deposition process, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04
Inventor 周建忠孟宪凯黄舒谢小江杨晶王宏宇
Owner SANMENXIA ZHONGYUAN PRECISION
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