CN205770154U - A kind of surface is provided with the aluminium alloy guide of wear-resistant coating - Google Patents
A kind of surface is provided with the aluminium alloy guide of wear-resistant coating Download PDFInfo
- Publication number
- CN205770154U CN205770154U CN201620342789.3U CN201620342789U CN205770154U CN 205770154 U CN205770154 U CN 205770154U CN 201620342789 U CN201620342789 U CN 201620342789U CN 205770154 U CN205770154 U CN 205770154U
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- Prior art keywords
- wear
- guide
- resistant coating
- coating
- aluminium alloy
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Abstract
The surface that the utility model discloses a kind of helicopter engine that can be used as in aircraft industry is provided with the aluminium alloy guide of wear-resistant coating.The matrix of this guide is 7075 aviation aluminum alloy materials, and surface is the tungsten carbide wear-resistant coating material using Detonation Thermal method to prepare, and the thickness of described WC-Co wear-resistant coating is 0.1～0.2mm.Use the WC-Co wear-resistant coating prepared in aluminum alloy surface of detonation flame spraying technique, there is hardness and bond strength is high, coating is fine and close, surface roughness is low and excellent salt spray corrosion resistance.By improving wear-resisting, the antiseptic property of guide to extend the service life of guide, and can have the endurance life-span under good heat dispersion and heavy duty alternation dynamic loading.
Description
Technical field
This utility model relates to the helicopter engine inclinator guide in aircraft industry, is specifically related to a kind of surface and uses
The aluminium alloy guide of detonation flame spraying process deposits WC-Co coating.
Background technology
7075 aluminium alloys are owing to intensity is high, density is little and is used widely at aviation field, but due to aluminum alloy hardness
Relatively low, how solving the wearability of aluminum alloy part is a technical barrier, is also the outstanding problem that generally exists of aircraft industry.Adopt
With surface micro-arc oxidation technology aluminum alloy part Surface Creation alumina flake or with electroplating technology on aluminum alloy part surface
Hard chrome plating can improve case hardness and the salt spray corrosion resistance of part to a certain extent, but has that coated layer is relatively thin and and aluminum
The defect of alloy substrate poor bonding strength.But the Cr produced in chrome-plating process6+Carcinogen can cause serious environmental pollution, chromium
Stress corrosion between coating and aluminum alloy base material can cause again the endurance of part to drastically reduce service life.
Summary of the invention
This utility model is in order to solve above-mentioned technical problem, it is provided that a kind of surface uses detonation flame spraying process deposits tungsten carbide
The aluminium alloy guide of cobalt coating, thus improve the case hardness of aluminium alloy and solve the material failure caused due to salt air corrosion
Problem.
To achieve these goals, a kind of surface that this utility model provides is provided with the aluminium alloy guide of wear-resistant coating, bag
Include matrix.This matrix 1 material is 7075 aerolites, and its surface uses detonation flame spraying technique to be provided with WC-Co coating.
In order to ensure coating and between base material for compressive stress, described WC-Co coating layer thickness can be 0.1～0.2mm.
Constitute the metal ceramic powder that powder is high rigidity of described WC-Co coating, particle diameter be 15～38 μm
Grain, flight speed during detonation flame spraying is 800～1200m/s.
This utility model closes guide surface at aluminum and uses detonation flame spraying technique to prepare the WC-Co coating of compact structure, and one
Aspect, fine grain powder makes that the coating structure of deposition is fine and close, hardness and wearability good；On the other hand, the particle of high-speed flight
Clash into substrate surface and produce the effect of similar shot-peening, be remarkably improved endurance life-span and the resisting salt fog corrosion ability of part.Have
Solve to effect the inefficacy of scuffing fretting fatigue and ocean that this part in use causes due to heavy duty and alternate load
Salt air corrosion Problem of Failure under environmental condition.Additionally, due to the tungsten carbide cobalt layers on aluminium alloy guide surface has good leading
Hot, fricative heat quickly can be led away.And when coating abrasion to a certain extent after, also can use detonation flame spraying
Technique carries out reparation to guide and reuses.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model preferred embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail explanation to this utility model.Fig. 1 illustrates
This utility model one preferred embodiment---as the inclinator aluminium alloy guide of helicopter engine.The matrix 1 of this part
For high intensity 7075 aviation aluminum alloy material, surface is the WC-Co wear-and corrosion-resistant coating 2 using detonation flame spraying technique to prepare,
The thickness of described WC-Co coating 2 is 0.1～0.2mm.WC-Co coating, as the work surface of aluminium alloy guide, has knot
The salt spray resistance antiseptic property that structure is fine and close, hardness is high, surface roughness is low and excellent.Not only can improve the wearability of guide, extend
In the service life of guide, this part that also can be significantly increased is in heavily loaded and under high-frequency alternating load endurance service life.?
Configuration aspects, surface is the WC-Co wear-and corrosion-resistant coating of 0.1-0.2mm, and the porosity of this coating is only 0.7%；Base material is
Thickness is about the 7075 aerolite guides of 5mm.Prepare the ceramic metal that powder is high rigidity of described WC-Co coating
Powder, particle diameter is the granule of 15～38 μm, and flight speed during detonation flame spraying is 800～1200m/s.WC-Co coating is good
Heat conductivity make fricative heat quickly lead away, alloy matrix aluminum can be avoided to cause the defect of coarse grains because temperature raises
Problem.
Claims (1)
1. surface is provided with an aluminium alloy guide for wear-resistant coating, including matrix (1), it is characterised in that: the material of described matrix (1)
Material is 7075 aerolites, and its surface uses detonation flame spraying technique to be provided with WC-Co coating (2), described WC-Co coating
(2) thickness is 0.1～0.2mm, and the porosity of this coating is only 0.7%；The powder constituting described WC-Co coating (2) is gold
Belonging to ceramic powders, the particle diameter of powder is the granule of 15～38 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342789.3U CN205770154U (en) | 2016-04-22 | 2016-04-22 | A kind of surface is provided with the aluminium alloy guide of wear-resistant coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342789.3U CN205770154U (en) | 2016-04-22 | 2016-04-22 | A kind of surface is provided with the aluminium alloy guide of wear-resistant coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205770154U true CN205770154U (en) | 2016-12-07 |
Family
ID=57411893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620342789.3U Expired - Fee Related CN205770154U (en) | 2016-04-22 | 2016-04-22 | A kind of surface is provided with the aluminium alloy guide of wear-resistant coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205770154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857595A (en) * | 2018-07-03 | 2018-11-23 | 肇庆市丰驰精密金属制品有限公司 | A kind of automobile engine aluminium |
| CN109628871A (en) * | 2018-12-03 | 2019-04-16 | 中国船舶重工集团公司第七二五研究所 | A kind of aluminum alloy guide rail wear-resisting erosion resistance burn-out-proof adhesive coating layer and preparation and application |
| CN112593213A (en) * | 2020-12-11 | 2021-04-02 | 岳阳市青方环保科技有限公司 | Wear-resistant and corrosion-resistant process for surface of guide cylinder of automatic inclinator |
-
2016
- 2016-04-22 CN CN201620342789.3U patent/CN205770154U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857595A (en) * | 2018-07-03 | 2018-11-23 | 肇庆市丰驰精密金属制品有限公司 | A kind of automobile engine aluminium |
| CN109628871A (en) * | 2018-12-03 | 2019-04-16 | 中国船舶重工集团公司第七二五研究所 | A kind of aluminum alloy guide rail wear-resisting erosion resistance burn-out-proof adhesive coating layer and preparation and application |
| CN112593213A (en) * | 2020-12-11 | 2021-04-02 | 岳阳市青方环保科技有限公司 | Wear-resistant and corrosion-resistant process for surface of guide cylinder of automatic inclinator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210422 |