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Laser reactive cladding TiC ceramic reinforced iron matrix composite material and preparation method thereof

An iron-based composite material and cladding technology, applied in the direction of metal material coating process, coating, etc., can solve the problems of uneven coating, cracks, singleness, etc., to improve surface properties, improve bonding strength, and good metallurgical bonding Effect

Pending Publication Date: 2019-03-01
上海万泽精密铸造有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the single surface cladding material of existing parts, problems such as cracks and uneven coating often appear on the surface of parts during the process of repairing parts using laser cladding technology.

Method used

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  • Laser reactive cladding TiC ceramic reinforced iron matrix composite material and preparation method thereof
  • Laser reactive cladding TiC ceramic reinforced iron matrix composite material and preparation method thereof
  • Laser reactive cladding TiC ceramic reinforced iron matrix composite material and preparation method thereof

Examples

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preparation example Construction

[0037] Such as figure 1 As shown, the preparation method of the laser reactive cladding TiC ceramic reinforced iron-based composite material according to the embodiment of the present invention includes:

[0038] S1, select a metal material as a substrate, and polish and clean the surface of the substrate.

[0039] There is no special limitation on the specific material composition of the substrate, for example, metal steel such as Q235 steel can be used.

[0040] In order to improve the bonding strength and performance between the surface cladding layer and the substrate, the surface of the substrate can be polished with sandpaper to remove oxides and oil stains on the surface, and cleaned with acetone to make the metal material fully contact with the cladding material .

[0041] S2, setting a layer of primer cladding layer on the surface of the ground and cleaned substrate.

[0042] Co-based self-fluxing alloys have excellent heat resistance, corrosion resistance, wear re...

Embodiment 1

[0061] The base material selected in this embodiment is Q235 steel. In order to improve the bonding strength and performance between the surface cladding layer and the substrate, the surface of the substrate was polished with sandpaper to remove oxides and oil stains on the surface, and cleaned with acetone.

[0062] The material of the bottom cladding layer is Co50 self-fluxing alloy. The bottoming cladding layer material is mixed with the alcohol solution of shellac to form a paste, after which the paste is coated on the surface of the substrate, and after being dried for 2 hours at 100 degrees Celsius, laser cladding is carried out (the scanning speed of the laser is 1.5 mm / s), forming a primer cladding layer with a thickness of 0.4mm on the surface of the substrate.

[0063] The cladding powder is Ti powder and C powder. Mix Ti powder and C powder in a molar ratio of 1:1 to form cladding powder, and grind them evenly in a ball mill. After that, use shellac alcohol soluti...

Embodiment 2

[0070] A TiC ceramic reinforced iron-based composite material was obtained in the same manner as in Example 1, except that the scanning speed was changed to 1.0 mm / s during the final laser cladding treatment of the pre-coating.

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Abstract

The invention provides a laser reactive cladding TiC ceramic reinforced iron matrix composite material and a preparation method thereof. The preparation method of the laser reactive cladding TiC ceramic reinforced iron matrix composite material comprises the step S1 of selecting a metal material as a matrix and polishing and cleaning the surface of the matrix; the step S2 of arranging a priming cladding layer on the surface of the polished and cleaned matrix; the step S3 of preparing cladding powder containing Ti and C in the molar ratio of 1:1; the step S4 of mixing the cladding powder with an organic binder and coating the mixture on the surface of the priming cladding layer to form a preset coating; the step S5 of using a laser beam as a heat source and conducting laser cladding treatment on the matrix with the preset coating to form a TiC ceramic cladding layer to obtain the TiC ceramic reinforced iron matrix composite material.

Description

technical field [0001] The invention relates to the technical field of material chemistry, in particular to a laser reaction cladding TiC ceramic reinforced iron-based composite material and a preparation method thereof. Background technique [0002] With the continuous development of science, people's requirements for materials and performance are getting higher and higher, and the traditional single homogeneous material has been difficult to meet the needs of actual production. Since the damage of parts often starts from the surface, the local damage of the surface will lead to the failure of the whole part. [0003] In response to this situation, as early as the end of the 1980s, the U.S. Department of Commerce listed surface engineering technology as one of the seven key technologies that affect human life in the 21st century. , new energy technology and advanced manufacturing technology. [0004] In recent years, my country has also attached great importance to laser ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 魏剑辉陈博文陈双谢金群陆敏李文戈赵远涛尹莉
Owner 上海万泽精密铸造有限公司
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