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Wear-resistant mold surface nanocrystal coating and preparation method thereof

A nano-crystal, wear-resistant technology, applied in the coating, metal material coating process, fusion spraying, etc., can solve the problem of the mold is not wear-resistant, to avoid mold wear, reduce friction, high-quality surface The effect of finish

Inactive Publication Date: 2020-11-06
常熟市绿一电器配件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a wear-resistant mold surface nanocrystal layer and its prep

Method used

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  • Wear-resistant mold surface nanocrystal coating and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0027] Example 1

[0028] The present invention provides methods such as Figure 1 The nano-crystal layer on the surface of the wear-resistant mold shown in the figure consists of TiN crystal phase as the bottom layer, TiCN crystal phase +TiC crystal phase as the transition layer and Al.2 O 3 The crystal phase is composed of wear-resistant layer, in which TiCN crystal is dispersed in TiC crystal phase, TiN crystal phase is bonded with TiC crystal phase +TiC crystal phase, and TiC crystal phase +TiC crystal phase is Al. 2 O 3 Crystal phase bonding;

[0029] The thickness of the bottom layer is 2um；;

[0030] The thickness of the transition layer is 7um；;

[0031] The thickness of the wear-resistant layer is 3um.

[0032] In this embodiment, specifically, the total thickness of the nanocrystal layer is 12um.

[0033] In this embodiment, the bottom layer is located on one side close to the surface of the mold, and the transition layer is located between the bottom layer and the wear-r...

Example Embodiment

[0044] Example 2

[0045] The present invention provides methods such as Figure 1 The nano-crystal layer on the surface of the wear-resistant mold shown is different from the first embodiment in that the TiN crystal phase is the bottom layer, the TiCN crystal phase +TiC crystal phase is the transition layer and Al. 2 O 3 The crystal phase is composed of wear-resistant layer, in which TiCN crystal is dispersed in TiC crystal phase, TiN crystal phase is bonded with TiC crystal phase +TiC crystal phase, and TiC crystal phase +TiC crystal phase is Al. 2 O 3 Crystal phase bonding;

[0046] The thickness of the bottom layer is 3um；;

[0047] The thickness of the transition layer is 6um；;

[0048] The thickness of the wear-resistant layer is 4um.

[0049] In this embodiment, specifically, the total thickness of the nanocrystal layer is 13um.

[0050] In this example, specifically, the grain size range of the TiN crystal phase is 105nm, the grain size range of the TiCN crystal phase is 11...

Example Embodiment

[0056] Example 3

[0057] The present invention provides methods such as Figure 1 The nano-crystal layer on the surface of the wear-resistant mold shown is different from the first embodiment in that the TiN crystal phase is the bottom layer, the TiCN crystal phase +TiC crystal phase is the transition layer and Al. 2 O 3 The crystal phase is composed of wear-resistant layer, in which TiCN crystal is dispersed in TiC crystal phase, TiN crystal phase is bonded with TiC crystal phase +TiC crystal phase, and TiC crystal phase +TiC crystal phase is Al. 2 O 3 Crystal phase bonding;

[0058] The thickness of the bottom layer is 3um；;

[0059] The thickness of the transition layer is 7um；;

[0060] The thickness of the wear-resistant layer is 5um.

[0061] In this embodiment, specifically, the total thickness of the nanocrystal layer is 15um.

[0062] In this embodiment, specifically, the grain size range of TiN crystal phase is 75-150nm, the grain size range of TiCN crystal phase is 140n...

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Abstract

The invention discloses a wear-resistant mold surface nanocrystal coating and a preparation method thereof. The wear-resistant mold surface nanocrystal coating is composed of a bottom layer formed bya TiN crystal phase, a transition layer formed by a TiCN crystal phase and a TiC crystal phase and a wear-resistant layer formed by an Al2O4 crystal phase. TiCN crystals are dispersed in the TiC crystal phase, the TiN crystal phase is bonded with the TiCN crystal phase and the TiC crystal phase, and the TiCN crystal phase and the TiC crystal phase are bonded with the Al2O3 crystal phase. An alpha-Al2O3 crystal phase is adopted as a surface material of the wear-resistant layer, a high wear resisting effect is achieved, the service life of a mold is prolonged, and therefore when the mold is machined, high-quality surface smoothness can be achieved, and resistance of aluminum in the mold forming and flowing process is reduced; and friction is reduced, and mold wear is reduced. Due to the fact that friction is reduced, the material is formed consistently, and the situation that the material is locally cut off, a rib breaking phenomenon happens is avoided.

Description

technical field [0001] The invention belongs to the technical field of mold processing, and in particular relates to a nano crystal layer on the surface of a wear-resistant mold and a preparation method thereof. Background technique [0002] Mold (mú jù), various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to make shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "Mother of Industry". [0003] Under the action of external force, the blank becomes a tool with a specific shape and size. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting...

Claims

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Application Information

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IPC IPC(8): C23C4/134C23C4/10C23C4/11
CPCC23C4/134C23C4/10C23C4/11
Inventor 戴建新
Owner 常熟市绿一电器配件制造有限公司
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