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Preparation method of fine copper surface laser in-situ synthesis ceramic reinforced cladding layer

An in-situ autogenous, laser cladding technology, applied in the direction of coating, metal material coating process, etc., can solve the problem of poor bonding between ceramic materials and copper, achieve significant enhancement effect, reduce thermal stress cracking, and good bonding Effect

Active Publication Date: 2017-10-27
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing the in-situ self-generated ceramic reinforced cladding layer on the surface of pure copper, to solve the problem of poor bonding between directly adding ceramic materials and copper, and to use high-power lasers to react in situ on the surface of pure copper to generate ZrB 2 -ZrC-Al 2 o 3 Preparation process of enhanced cladding layer

Method used

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  • Preparation method of fine copper surface laser in-situ synthesis ceramic reinforced cladding layer
  • Preparation method of fine copper surface laser in-situ synthesis ceramic reinforced cladding layer
  • Preparation method of fine copper surface laser in-situ synthesis ceramic reinforced cladding layer

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Embodiment 1

[0037] A method for preparing a laser in-situ self-generated ceramic reinforced cladding layer on a pure copper surface, comprising the following steps:

[0038] Prepare cladding powder, the amount of each component is by weight percentage: 2.03% Al powder, 6.94% ZrO 2 powder, 1.73% Ni package B 4 C powder, 9.30% Ni powder, 80% Cu powder; after accurately weighing the above powder, put it into a V-shaped mixer, stir it at a speed of 15r / min for 2 hours, then put the cladding powder into a drying box, and Dry at 120°C for 1 hour to remove moisture from the powder to obtain cladding powder.

[0039] Surface pretreatment of the pure copper substrate to be clad, use sandpaper to polish the pure copper substrate to be clad to remove surface stains and oxides; use absolute ethanol to wipe the surface of the pure copper substrate to be clad; use a brush to clean the pure copper substrate Paint a layer of carbon ink on the surface, put it in a drying oven, and dry it at 120°C for 10...

Embodiment 2

[0043] A method for preparing a laser in-situ self-generated ceramic reinforced cladding layer on a pure copper surface, comprising the following steps:

[0044] Prepare cladding powder, the amount of each component is by weight percentage: 4.06% Al powder, 13.88% ZrO 2 powder, 3.46% Ni package B 4 C powder, 18.6% Ni powder, 60% Cu powder; after accurately weighing the above powder, put it into a V-type mixer, stir it at a speed of 15r / min for 2 hours, then put the cladding powder into a drying box, and Dry at 120°C for 1 hour to remove moisture from the powder to obtain cladding powder.

[0045] Surface pretreatment of the pure copper substrate to be clad, use sandpaper to polish the pure copper substrate to be clad to remove surface stains and oxides; use absolute ethanol to wipe the surface of the pure copper substrate to be clad; use a brush to clean the pure copper substrate Paint a layer of carbon ink on the surface, put it in a drying oven, and dry it at 120°C for 10 ...

Embodiment 3

[0049] A method for preparing a laser in-situ self-generated ceramic reinforced cladding layer on a pure copper surface, comprising the following steps:

[0050] Prepare cladding powder, the amount of each component is by weight percentage: 6.09% Al powder, 20.82% ZrO 2 powder, 5.19% Ni package B 4 C powder, 27.90% Ni powder, 40% Cu powder; after accurately weighing the above powder, put it into a V-type mixer, stir at a speed of 15r / min for 2 hours, then put the cladding powder into a drying box, and Dry at 120°C for 1 hour to remove moisture from the powder to obtain cladding powder.

[0051] Surface pretreatment of the pure copper substrate to be clad, use sandpaper to polish the pure copper substrate to be clad to remove surface stains and oxides; use absolute ethanol to wipe the surface of the pure copper substrate to be clad; use a brush to clean the pure copper substrate Paint a layer of carbon ink on the surface, put it in a drying oven, and dry it at 120°C for 10 mi...

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Abstract

The invention discloses a preparation method of a fine copper surface laser in-situ synthesis ceramic reinforced cladding layer. The method comprises the following steps: preparing cladding powder; pretreating the surface of a to-be-cladded fine copper matrix; rapidly fusing the cladding powder on the surface of the fine copper matrix by using a laser cladding device in a synchronous powder feeding mode, and forming the ZrB2-ZrC-Al2O3 ceramic reinforced cladding layer. According to the obtained cladding layer, the composite ceramic cladding layer and the matrix are well combined, no pore and impurity are produced, the content of a synthesized ceramic reinforced phase increases and is in graded distribution from the matrix to the surface in the cladding layer, meanwhile, three different ceramic phases are generated, the morphological structures of the ceramic phases are different, and the hardness is obviously improved.

Description

technical field [0001] The invention belongs to the field of surface engineering, and relates to a method for preparing a laser in-situ self-generated ceramic reinforced cladding layer on a pure copper surface, that is, reacting in situ on a pure copper surface to generate ZrB under the action of a laser 2 -ZrC-Al 2 o 3 Enhance cladding. Background technique [0002] Copper and its alloys have high thermal conductivity and excellent plasticity and toughness, but their strength and wear resistance are poor, so they are not suitable for working under high load conditions; ceramic materials have high hardness, good wear resistance and High temperature stability; combining the two, the copper-based ceramic composite material has good thermal conductivity and high strength and wear resistance, which improves the application range of copper materials. [0003] The traditional technologies for preparing copper-based ceramic composites on the surface of pure copper mainly include...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C9/06C22C32/00C22C30/02B22F1/00
CPCB22F1/0003C22C9/06C22C30/02C22C32/0005C23C24/103
Inventor 战再吉吕相哲曹海要王振春
Owner YANSHAN UNIV
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