Preparation method for nickel-based glass fiber composite material based on laser cladding

A glass fiber, composite material technology, applied in the direction of metal material coating process, coating, etc., to achieve good resistance to intermetallic friction and wear and low-stress abrasive wear, high corrosion resistance, good toughness and impact resistance. Effect

Inactive Publication Date: 2015-03-25
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] At present, there are few studies on laser cladding metal matrix fiber composite materials, nickel base and glass fiber have their own remarkable characteristics, the invention provides a preparation method of composite materials

Method used

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  • Preparation method for nickel-based glass fiber composite material based on laser cladding
  • Preparation method for nickel-based glass fiber composite material based on laser cladding
  • Preparation method for nickel-based glass fiber composite material based on laser cladding

Examples

Experimental program
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Effect test

example 1

[0031] (1) Select 45# steel with a V-shaped groove as the substrate for cladding. The size of the V-shaped groove is 0.7mm×2.1mm, and it is polished with 600-mesh sandpaper, and then the oil and rust on the surface of the substrate are cleaned with acetone solution;

[0032] (2) Dry the nickel-based powder in a dryer at a temperature of 120°C for 60 minutes;

[0033] (3) Put the glass fiber in the V-shaped groove, pre-set the nickel-based powder on the surface of the 45# steel substrate, and the powder thickness is 1.5mm;

[0034] (4) Use a high-power semiconductor laser for cladding, where the laser power is 3000W. The selected spot width is 2-8mm, and the focal length is 370mm. The scanning speed is 8mm / s, and the protective gas is argon;

[0035] (5) After the microhardness test, the average hardness of the obtained cladding layer is 384.2HV, and the macroscopic appearance of the cladding layer after cladding is as follows figure 1 As shown, the SEM metallographic pictur...

example 2

[0037] (1) Select 45# steel with a V-shaped groove as the substrate for cladding. The size of the V-shaped groove is 0.7mm×2.1mm, and it is polished with 600-mesh sandpaper, and then the oil and rust on the surface of the substrate are cleaned with acetone solution;

[0038] (2) Dry the nickel-based powder in a dryer at a temperature of 120°C for 60 minutes;

[0039] (3) Put the glass fiber in the V-shaped groove, pre-set the nickel-based powder on the surface of the 45# steel substrate, and the powder thickness is 1.5mm;

[0040] (4) Use a high-power semiconductor laser for cladding, where the laser power is 3000W. The selected spot width is 2-8mm, and the focal length is 370mm. The scanning speed is 16mm / s, and the protective gas is argon;

[0041] (5) After the microhardness test, the average hardness of the obtained cladding layer is 307.3HV, and the macroscopic appearance of the cladding layer after cladding is as follows figure 1 As shown, the SEM metallographic pictu...

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Abstract

The invention discloses a laser cladding coating method for iron-based titanium carbide. The method is characterized by comprising the following steps: 1, selecting 45# steel as a cladding substrate, polishing to be smooth and clean by 600-mesh sand paper, thoroughly removing oil stains and rust on the surface of the substrate by an acetone solution; 2, drying nickel-based powder in a drying machine at 120 DEG C for 60 minutes; 3, arranging glass fibers on the substrate, and prearranging nickel-based powder on the surface of the 45# steel substrate, wherein the powder is 1-5 mm in thickness; 4, cladding by a high-power semiconductor laser device, wherein the laser power is 3,000 W. The selected and used optical spot is 2-8 mm in width, the focal length is 370 mm, the scanning speed is 8 mm/s or 16 mm/s, and argon gas is adopted as protection gas.

Description

[0001] The invention belongs to the field of laser cladding metal composite materials, in particular to a preparation method of laser cladding nickel-based glass fiber composite materials. Background technique [0002] Laser cladding is an advanced laser surface modification technology. It is to add cladding materials (powder feeding, wire feeding, preset, etc.) The thin layer of metal on the surface of the substrate quickly reaches a molten state. At this time, relying on the heat conduction of the workpiece itself, it is rapidly solidified and crystallized into a cladding layer to obtain a modified layer or repair with a metallurgical bond with the substrate material and a low dilution rate. Floor. Cladding alloy coatings with different properties on cheap base materials can significantly improve the wear resistance, corrosion resistance, heat resistance and oxidation resistance of the base material surface, and has broad development prospects. Compared with the traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 雷剑波赵冬梅王植陈小明顾振杰王云山
Owner TIANJIN POLYTECHNIC UNIV
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