Carbon-base coating high in hardness, resistant to abrasion and resistant to corrosion in emulsion environment on substrate surface and preparation method of carbon-base coating

An emulsion, high hardness technology, applied in the direction of coating, metal material coating process, superimposed layer plating, etc., can solve the problems of low service life and shortened service life, achieve effective protection and improve corrosion resistance , The effect of improving the binding force of the membrane base

Pending Publication Date: 2017-11-07
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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Problems solved by technology

However, the inherent deficiency and irreconcilability of the friction, wear and corrosion properties of metal materials in the emulsion medium environment reduce the service life of the substrate. For ex

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  • Carbon-base coating high in hardness, resistant to abrasion and resistant to corrosion in emulsion environment on substrate surface and preparation method of carbon-base coating
  • Carbon-base coating high in hardness, resistant to abrasion and resistant to corrosion in emulsion environment on substrate surface and preparation method of carbon-base coating
  • Carbon-base coating high in hardness, resistant to abrasion and resistant to corrosion in emulsion environment on substrate surface and preparation method of carbon-base coating

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[0021] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings. It should be noted that the following embodiments and terms are intended to facilitate the understanding of the present invention, but do not have any limiting effect on it.

[0022] In this embodiment, the substrate is a hydraulic motor component, and the surface of the substrate is a carbon-based coating, such as figure 1 As shown, the surface of the self-substrate is the base layer 2, the surface of the base layer 2 is the transition layer 3, the surface of the transition layer 3 is the first functional layer 41, the surface of the first functional layer 41 is the second functional layer 42, and the surface of the second functional layer 42 is lubricated Layer 6.

[0023] The base layer 2 is a Cr layer.

[0024] The transition layer 3 is composed of metal Cr and WC, and along the upward direction of the substrate surface, the content of met...

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Abstract

The invention discloses a carbon-base coating high in hardness, resistant to abrasion and resistant to corrosion in emulsion environment on the substrate surface. A Cr base layer, a Cr/WC gradient transition layer, a functional layer and a lubricating layer are arranged on the substrate surface in sequence from bottom to top; the functional layer is composed of a first functional layer and a second functional layer which are both tungsten carbide doped diamond-like carbon films, and the tungsten content in the first functional layer is higher than that in the second functional layer; the lubricating layer is a diamond-like carbon film layer prepared through a vapor deposition method. According to the carbon-base coating, on the premise that the hardness and the abrasion resistance are guaranteed, the film-substrate cohesion can be improved by 1-3 times, the excellent abrasion resistance is achieved in the emulsion environment, the effective protective effect on a substrate can be achieved, for example, the carbon-base coating can be used for an emulsion motor, and potential possibility is provided for lifetime extension and synergy of emulsion motor parts.

Description

technical field [0001] The invention relates to the technical field of substrate surface treatment, in particular to a carbon-based coating with high hardness, wear resistance and corrosion resistance in an emulsion environment and a preparation method thereof. Background technique [0002] Some substrates use emulsion as the working medium and require high hardness and wear resistance. For example, traditional hydraulic motors use emulsion as the working medium, which contains a variety of chemical elements. However, the inherent deficiency and irreconcilability of the friction, wear and corrosion properties of metal materials in the emulsion medium environment reduce the service life of the substrate. For example, the service life of the emulsion hydraulic motor is only a few months or even weeks, which is far lower than that of the traditional The hydraulic oil motor has a service life of two to five years. Contents of the invention [0003] The invention provides a ca...

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Application Information

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IPC IPC(8): C23C28/00
CPCC23C28/32C23C28/343
Inventor 王永欣孙尚琪鲁侠李金龙王立平路小江蔡国定
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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