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Metal piece and preparing method thereof

A technology for metal parts and metal substrates, applied in the direction of metal layered products, chemical instruments and methods, metal material coating technology, etc., can solve the problems of lack of metallic luster, low hardness and poor toughness of the hard coating on the surface of stainless steel

Active Publication Date: 2016-05-18
SHENZHEN SENTAI METAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a kind of

Method used

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  • Metal piece and preparing method thereof
  • Metal piece and preparing method thereof
  • Metal piece and preparing method thereof

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preparation example Construction

[0029] The present invention also provides a method for preparing the above-mentioned metal parts, including:

[0030] S1, the metal substrate is fixed in the coating chamber of the magnetron sputtering ion coating machine, wherein the target is a composite target composed of chromium and silicon; in the composite target, the content ratio of chromium and silicon is 1:1;

[0031] S2. Using argon as the working gas, perform magnetron sputtering to form a coating layer composed of silicon and chromium with a thickness of 2.5-5 μm on the surface of the metal substrate; the content of silicon in the coating layer is 3-5 wt%.

[0032] According to the present invention, the aforementioned metal substrate is preferably stainless steel, such as 316L stainless steel sheet. When forming the above-mentioned coating on the surface of the metal substrate, a magnetron sputtering method is used. Fix the metal substrate in the coating chamber of the magnetron sputtering ion coating machine....

Embodiment 1

[0042] This embodiment is used to illustrate the metal piece disclosed in the present invention and its preparation method.

[0043] The polished 316L stainless steel sheet (12mm×24mm)×3 pieces (the color measurement experiment has been carried out) is subjected to (85°C) high temperature dewaxing, degreasing and other pre-coating processes, hung up and dried, and then put into the medium frequency magnetron sputtering In the ion coating machine, the silicon-embedded chromium and silicon composite twin target (the content ratio of chromium and silicon is 1:1) is used as the target material. After cleaning by ion sputtering, pump the coating chamber to a background vacuum of 4-6×10 -3 After Pa, pass a certain amount of working gas argon (purity 99.99%) to maintain the vacuum at 0.12-1.2Pa. Turn on the power and carry out intermediate frequency magnetron sputtering. A silicon-doped chromium hard coating with a thickness of 4.5 μm is formed on the surface of the stainless steel...

Embodiment 2

[0060] This embodiment is used to illustrate the metal piece disclosed in the present invention and its preparation method.

[0061] The polished 316L stainless steel sheet (12mm×24mm)×3 pieces (the color measurement experiment has been carried out) is subjected to (85°C) high temperature dewaxing, degreasing and other pre-coating processes, hung up and dried, and then put into the medium frequency magnetron sputtering In the ion coating machine, the silicon-embedded chromium and silicon composite twin target (the content ratio of chromium and silicon is 1:1) is used as the target material. After cleaning by ion sputtering, pump the coating chamber to a background vacuum of 4-6×10 -3 After Pa, pass a certain amount of working gas argon (purity 99.99%) to maintain the vacuum at 0.12-1.2Pa. Turn on the power and carry out intermediate frequency magnetron sputtering. A silicon-doped chromium hard coating with a thickness of 4.5 μm is formed on the surface of the stainless steel...

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Abstract

The invention provides a metal piece. By the adoption of the metal piece, the problems that in the prior art, a hard coating on the surface of stainless steel is low in hardness and poor in tenacity and has no metallic luster are solved. The metal piece comprises a metal base and a coating adhering to the surface of the metal base. The coating is prepared from, by weight, 3%-5% of silicon and the balance chromium. The thickness of the coating is 2.5-5 micrometers. Meanwhile, the invention discloses a preparing method of the metal piece. The coating on the surface of the metal piece has extremely high hardness and is good in tenacity and not prone to peeling; meanwhile, the coating has metallic luster.

Description

technical field [0001] The invention relates to a metal piece and a preparation method thereof. Background technique [0002] Due to the low surface hardness of commonly used metals, commonly used metal products are not wear-resistant and easy to scratch, which greatly affects their performance. For example, the surface hardness of stainless steel commonly used in daily life or production is less than or equal to 300HV, and its wear resistance is poor, resulting in serious surface wear and scratches after 1-2 months of use. In order to improve the wear resistance and anti-scratch performance of commonly used metal products, these metal products are usually subjected to surface hardening treatment, such as traditional aqueous solution electroplating hard chrome technology, vacuum ion hardening technology and vacuum hard ceramic film (TiN, TiCN) , TiAlN and CrN, etc.) technology. [0003] The traditional hard chromium plating process in aqueous solution can prepare hard chro...

Claims

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Application Information

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IPC IPC(8): C23C14/35C23C14/16B32B15/01
Inventor 范伟华
Owner SHENZHEN SENTAI METAL TECH CO LTD
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