Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for assembling nano Al2O3/TiO2 plating on cast aluminium surface using laser

A laser and aluminum casting technology, which is applied in laser welding equipment, heating inorganic powder coating, manufacturing tools, etc., can solve the problems of loss and easy agglomeration of nanomaterials

Inactive Publication Date: 2007-05-02
SHANGHAI UNIV OF ENG SCI +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the easy aggregation of nanomaterials, the above-mentioned "nanoeffect" may be lost during thermal action

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1. cast aluminum is ZL104, as coating base material, its composition is:

[0020] Si 8.0~10.5wt%

[0021] Mg 0.17~0.3Wt / %

[0022] Mn 0.2~0.5Wt / %

[0023] Al the rest

[0024] Laser assembly of nano-Al on the surface of the cast aluminum 2 o 3 / TiO 2 A coating method comprising the steps of:

[0025] The surface of ZL104 cast aluminum is polished by sandpaper first, and then cleaned with acetone before use;

[0026] ·On ​​the surface of the cast aluminum to be used, thermal spray a Ni-clad Al alloy primer layer, ~0.05mm thick, and then spray a layer of (NF)Al 2 o 3 / TiO 2 , layer thickness ~ 0.12mm;

[0027] Coated on the surface of the pre-assembled coating to increase CO 2 Light-absorbing coatings with laser absorptivity;

[0028] CO 2 laser scanning. The laser processing machine used is HJ-3 type 2500WCW CO 2 laser machine. The incident laser power density is 2.04×10 4 W / cm 2 , the scanning speed is 40mm / s. Protected by Ar gas.

Embodiment 2

[0030] The incident laser power density is 5.03×10 3 W / cm 2

[0031] Laser scanning speed 30mm / s

[0032] Ni-clad Al bottom layer thickness 0.05mm

[0033] (NF)Al 2 o 3 / TiO 2 Layer thickness 0.05mm

[0034] Others are with embodiment 1.

Embodiment 3

[0036] The incident laser power density is 6.3×10 3 W / cm 2

[0037] Laser scanning speed 36mm / s

[0038] Ni wrapped Al 0.05mm

[0039] (NF)Al 2 o 3 / TiO 2 0.08mm

[0040] Others are with embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

An aluminium casting surface nano Al#-[2]O#-[3] / TiO#-[2] plating layer laser assemble method is characterized as comprising the following steps: (1). surface cleaning treatment; (2) Granulating and assembling nano Al#-[2]O#-[3] / TiO#-[2]; (3) spraying and preassembly, first spraying a layer of Al-in-Ni then spraying a layer assembled nano Al#-[2]O#-[3] / TiO#-[2]; (4). coating a light absorption layer on preassembled coating; (5). under the argon shield, laser scanning to surface. The inventive method can prepare aluminium casting surface nano Al#-[2]O#-[3] / TiO#-[2] ceramic plating removing hole and crack assembled by laser, The plating layer bonding strength and abradability improves greatly relative to traditional hot spraying Al#-[2]O#-[3] / TiO#-[2] plating layer.

Description

Technical field: [0001] The present invention is related to surface strengthening treatment of cast aluminum, in particular to laser rapid assembly of nano-Al on the surface of cast aluminum 2 o 3 / TiO 2 Plating method. Background technique: [0002] Cast aluminum alloy (referred to as cast aluminum) has the characteristics of good casting performance, light weight, high electrical and thermal conductivity, and corrosion resistance. It is widely used in important industrial fields such as automobiles, aviation, and aerospace. However, due to the relatively low hardness and poor wear resistance of cast aluminum, the scope of application is limited. Many researchers have tried to modify it by surface treatment methods. Among them, plasma spraying ceramic coating on the surface of cast aluminum can significantly improve the wear resistance of cast aluminum, but this coating mainly exists in the form of metastable phase. It has a high porosity and a layered structure. There ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/08B23K26/34
Inventor 张光钧戴建强王慧萍奚文龙戈大钫徐文华赵华明陈惠国
Owner SHANGHAI UNIV OF ENG SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com