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Preparation method of compressor blade coating and surface modifier

A technology of surface modification and compressor, which is applied in the direction of coating, superimposed layer coating, metal material coating process, etc., can solve the problems of poor uniformity of coating, insufficient comprehensive protection performance of blade surface, etc., and achieve high temperature resistance Corrosion and erosion ability, the effect of improving poor deposition uniformity

Inactive Publication Date: 2015-02-04
BEIJING RES INST OF AUTOMATION FOR MACHINERY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of poor coating uniformity and insufficient comprehensive protection performance of the blade surface in the existing tablet machine blade coating process, and to provide a preparation method and surface modification equipment for compressor blade coatings, which can improve the performance of compressor blades. Comprehensive protection performance of machine blade surface

Method used

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  • Preparation method of compressor blade coating and surface modifier
  • Preparation method of compressor blade coating and surface modifier
  • Preparation method of compressor blade coating and surface modifier

Examples

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Effect test

preparation example Construction

[0065] The preparation method of compressor blade coating of the present invention is as figure 1 shown. refer to Figure 2 to Figure 4 , Figure 2 to Figure 4 In order to realize the surface modification equipment for the preparation of the compressor blade coating of the present invention, the surface modification equipment of the compressor blade coating of the present invention will be firstly described below.

[0066] The surface modifying device 100 for the coating of compressor blades of the present invention is used for coating the compressor blades. As shown, the surface modification apparatus 100 of the present invention includes a vacuum chamber 110, a first arc source 120, a second arc source 130, a MEVVA ion source 140, a Kaufmann ion source 150 and a nitrogen gas source. The blade 200 is disposed in the vacuum chamber 110, and the vacuum chamber 110 includes a side wall 111 (see Figure 4 ) and the bottom wall 112, the first arc source 120, the second arc sou...

Embodiment 1

[0078] Step 10, loading the blade to be treated into the surface modification equipment. The arc source on the left side of the equipment adopts chromium-aluminum alloy target, the mass percentage content is 90% chromium-10% aluminum, and the purity is 99.8%; the arc source on the right side of the equipment adopts tantalum target, the purity is 99.8%; the MEVVA ion implantation source adopts chromium cathode, The purity is 99.8%.

[0079] Step 20: Close the furnace, turn on the mechanical pump and molecular pump, turn on the circulating water system, and evacuate to 6.0×10 -4 Pa, start crafting.

[0080] Step 30, cleaning the blade surface with a Kaufman ion source. The specific control parameters are: the ion beam energy is increased from 5kV to 30kV, and the sputtering time is 10min.

[0081] Step 40, using the MEVVA source to perform ion implantation on the surface of the blade. The specific control parameters are: the metal ion source trigger frequency is 10Hz, the ar...

Embodiment 2

[0087] Step 10, loading the blade to be treated into the surface modification equipment. The arc source on the left side of the equipment adopts chromium-aluminum alloy target, the mass percentage content is 90% chromium-10% aluminum, and the purity is 99.8%; the arc source on the right side of the equipment adopts tantalum target, the purity is 99.8%; the MEVVA ion implantation source adopts chromium cathode, The purity is 99.8%.

[0088] Step 20, close the furnace, turn on the mechanical pump and molecular pump, turn on the circulating water system, and evacuate to 7.0×10 -4 Pa, start crafting.

[0089] Step 30, cleaning the blade surface with a Kaufman ion source. The specific control parameters are: the ion beam energy is increased from 5kV to 30kV, and the sputtering time is 30min.

[0090] Step 40, using the MEVVA source to perform ion implantation on the surface of the blade. The specific control parameters are: the metal ion source trigger frequency is 15Hz, the ar...

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Abstract

The invention discloses a preparation method of a compressor blade coating and a surface modifier. The preparation method comprises the following steps: putting a blade into the vacuum chamber of the surface modifier and vacuuming, and connecting a first arc source, a second arc source, an MEVVA ion source, a kaufmann ion source and a nitrogen source to the vacuum chamber; cleaning the surface of the blade by use of the kaufmann ion source; performing ion injection on the surface of the blade by use of the MEVVA ion source; coating the surface of the blade with a Ta-Cr-Al film by use of the first arc source and the second arc source; depositing a (Ta, Cr, Al)*N film on the surface of the blade by use of the first arc source, the second arc source and the nitrogen source; and orderly and repeatedly completing coating. According to the preparation method of the compressor blade coating, the problem of poor deposition uniformity of the complex-structure film of the blade is improved by use of cathode magnetic filtration and plasma enhancement technologies; and meanwhile, the high temperature corrosion resistance and the erosion resisting capacity of the blade surface are improved by adopting a novel Al doped Ta-Cr-N nano multi-layer film.

Description

technical field [0001] The invention relates to a multi-working-condition coupling protection method, in particular to a method for preparing an Al-doped Ta-Cr-N nanometer multilayer film on a compressor blade by using cathode magnetic filtration and plasma enhancement technology And surface modification equipment, belonging to the field of vacuum coating technology. Background technique [0002] The blade is one of the key parts in the compressor structure, and it is also one of the parts with the highest failure rate in the use and experiment of the compressor. The reason is that in addition to its high-speed rotation, large number, thin body, and severe load conditions, it is also exposed to the atmospheric environment and thus withstands the corrosion of the atmospheric environment. When working, the corrosive medium in the airflow scours the surface of the blade at high speed, causing erosion damage on the surface; when parking, the corrosive atmospheric environment wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/48C23C14/46C23C14/14C23C14/06
CPCC23C14/0036C23C14/0641C23C14/14C23C14/46C23C14/48C23C28/321C23C28/34
Inventor 金杰王丽叶王月陈亮杨文军李朋帅
Owner BEIJING RES INST OF AUTOMATION FOR MACHINERY IND
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