Surface strengthened substrate, and preparation method thereof
A surface strengthening, matrix technology, applied in chemical instruments and methods, ion implantation plating, coating, etc., can solve the problems of high brittleness, high residual stress, poor matrix bonding force, etc.
Inactive Publication Date: 2011-11-09
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
However, in practical applications, the strengthening films such as chromium nitride film and chromium carbide film have disadvantages such as high brittleness, high residual stress, and poor bonding force with the substrate, and they are all simple substance strengthening films.
Therefore, as the thickness of the film increases and the temperature increases, these elemental strengthened films will have a large columnar crystal structure, which is prone to brittle cracks and peeling off, making the surface strengthening ineffective.
Method used
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Embodiment Construction
[0014] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0015] See figure 1 , the embodiment of the present invention provides a surface strengthening base 100 , the surface strengthening base 100 includes a base 10 and a strengthening film 20 disposed on the surface of the base 10 .
[0016] The base 10 can be the body or casing of various products, such as molds, blades, casings of various electronic products, and the like. The base 10 includes metal bases such as magnesium bases, aluminum bases, and steel bases, and also includes composite material bases containing metal materials. In this embodiment, the base 10 is a steel base.
[0017] The strengthening film 20 is used to cover the surface of the base 10 to isolate the surface of the base 10 from the environment, and increase the hardness of the surface of the base 10 to effectively protect the base 10 . The thickness of the reinforcement film 20 c...
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Abstract
The invention relates to a surface strengthened substrate, comprising a substrate and a strengthening film arranged on the surface of the substrate. The strengthening film comprises a transition layer and a hard layer. The transition layer comprises an alloy layer formed by at least two transition metals. The hard layer comprises a composite layer composed of an alloy material and a chromium compound material, wherein the alloy material comprises non-metal elements and the two transition metals. The invention also relates to a preparation method of the surface strengthened substrate.
Description
technical field [0001] The invention relates to a surface strengthening matrix and a preparation method of the surface strengthening matrix. Background technique [0002] In order to protect some substrates, such as watch cases, spectacle frames, mobile phones, computers, etc. from damage, a strengthening film is often provided on the surface of these substrates to form a surface strengthening substrate. Transition metal nitrides such as chromium nitride or transition metal carbides such as chromium carbide are often used to directly form the strengthening film on the surface of the substrate due to their high hardness, high friction and wear resistance and good chemical stability. However, in practical applications, the strengthening films such as chromium nitride film and chromium carbide film have disadvantages such as high brittleness, high residual stress, and poor bonding force with the matrix, and all of them are simple substance strengthening films. Therefore, as th...
Claims
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IPC IPC(8): B32B15/01B32B9/04C23C14/35C23C14/06
CPCB32B15/01C22C19/03C22C27/06C23C14/0036C23C14/0635Y10T428/12493Y10T428/12535Y10T428/12778Y10T428/12944
Inventor 张新倍陈文荣陈正士蒋焕梧詹益淇徐华阳
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD