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A nickel-based alloy powder for repairing internal combustion engine turbocharger discs

A technology for turbochargers and nickel-based alloys, which is applied in the coating process and coating of metal materials, can solve the problems of alloy powder crack resistance, formability, process stability and composition uniformity, and laser melting Covering process requirements and other issues to achieve the effect of meeting corrosion resistance, increasing wear resistance, and improving crack resistance

Active Publication Date: 2016-12-28
BEIJING DALU TIANRUI LASER ENG TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Although the alloy powders for laser cladding given by the above technical scheme can achieve certain technical effects in repairing specific equipment parts, they cannot meet and be suitable for laser cladding of other specific substrates due to their own process characteristics. In particular, it cannot meet the crack resistance, formability, process stability and composition uniformity of the alloy powder in the laser cladding layer, and at the same time meet the requirements for the anti-corrosion performance of the cladding layer
[0015] Therefore, it is a major subject in the technical field to research and develop a new anti-corrosion coating nickel-base alloy powder with anti-corrosion capability and stable performance, and it is checked by the applicant: there is no such aspect both at home and abroad related reports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]With 5KW CO 2 Laser for laser cladding of internal combustion engine turbocharger discs. The mass percent of alloying elements in the designed nickel-based alloy powder is .

[0034] C: 0.2%; Cr: 10%; Mo: 19%; W: 5%; Ti: 4%; Al: 1%; B: 0.5%; Si: 0.5%; 2 o 3 : 0.3%; Ce: 0.2%; Ni: balance.

[0035] The cladding process parameters are: power: 1800~3800W, focal length: 320~400mm, spot diameter: 3~6mm, scanning speed: 240~600mm / min, powder thickness: 0.3~1.0mm.

Embodiment 2

[0037] With 5KW CO 2 Laser for laser cladding of internal combustion engine turbocharger discs. The mass percent of alloying elements in the designed nickel-based alloy powder is .

[0038] C: 0.3; Cr: 11%; Mo: 18%; W: 6%; Ti: 5%; Al: 2%; B: 0.6%; Si: 0.4%; 2 o 3 : 0.4%; Ce: 0.3%; Ni: balance.

[0039] The cladding process parameters are: power: 1800~3800W, focal length: 320~400mm, spot diameter: 3~6mm, scanning speed: 240~600mm / min, powder thickness: 0.3~1.0mm.

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PUM

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Abstract

A nickel-based alloy powder for internal combustion engine turbocharger disc repair, its composition includes Cr, Mo, Ni, Y 2 o 3 , Hf, which is characterized by including W, Si, Mn, Co, Fe, wherein the mass percentage of each component is: C: 0.1~0.5%; Cr: 9~11%; Mo: 16~20%; W : 5~7%; Ti: 3~7%; Al: 1~3%; B: 0.3~0.7%; Si: 0.4~0.6%; 2 o 3 : 0.3~0.5%; Ce: 0.2~0.4%; Ni: balance. The invention solves and improves the crack resistance, formability, process stability and composition uniformity of the alloy powder in the laser cladding layer, and satisfies the requirements of the repair parts for the cladding layer's corrosion resistance, wear resistance, fatigue resistance and moderate hardness, etc. comprehensive performance requirements.

Description

technical field [0001] The invention relates to an alloy powder material suitable for laser cladding, in particular to a nickel-based alloy powder used for repairing the wheel disk of an internal combustion engine turbocharger, which belongs to C23C24 / 10 (2006.01) in the IPC International Patent Classification Table I technology field. Background technique [0002] A turbocharger is a machine that rotates at a high speed in a high-temperature environment. The working speed of the turbine disc of its component can reach 10,000 to 20,000 rpm. Such a high-speed rotating machine will often be damaged due to improper installation and use, causing users to suffer certain damages. economic loss. Since there is a gap in the assembly of the blades on the turbine disk, which may cause accidents due to vibration during high-speed rotation, to fix the blades, riveting points are often made on the falcon teeth on both sides to fasten the blades after the blades are assembled, but the ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C22C19/05
Inventor 朴新欣陈江张静波
Owner BEIJING DALU TIANRUI LASER ENG TECHCO
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