Check patentability & draft patents in minutes with Patsnap Eureka AI!

Fiber metal laminate preparation method capable of improving inter-laminar strength

A fiber metal, laminate technology, applied in metal layered products, cleaning methods using liquids, cleaning methods and utensils, etc., to achieve the effect of improving bonding strength, improving interlaminar shear strength, and increasing effective contact area

Active Publication Date: 2020-04-17
ZHEJIANG UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many ways to enhance the bonding strength between titanium alloy and resin. Most of the methods are to increase the surface roughness through the treatment of the metal surface and increase the effective area of ​​contact between the metal and the resin to improve the bonding strength; and Starting from the adjustment of the microstructure of the metal surface, there are few studies on increasing the bonding strength by adding a mechanical interlocking structure.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fiber metal laminate preparation method capable of improving inter-laminar strength
  • Fiber metal laminate preparation method capable of improving inter-laminar strength
  • Fiber metal laminate preparation method capable of improving inter-laminar strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for improving the interlaminar strength of a fiber metal laminate, the steps of the method are as follows:

[0034] (1) Perform surface pretreatment on the titanium alloy workpiece to be treated. The surface pretreatment process includes sandpaper grinding, ultrasonic cleaning with acetone to degrease, and the use of HF and HNO 3 Mixed acid to remove oxidation film;

[0035] (2) The configuration of the electrolyte: including the use of ethylene glycol as a solvent, the use of 1% ammonium fluoride and 2% water as a solute, that is, the mass ratio of the electrolyte is ethylene glycol: ammonium fluoride: Water = 97:1:2;

[0036] (3) Use graphite or titanium plate as the cathode, and the titanium alloy workpiece to be processed as the anode to perform electroetching; the entire electroetching process is carried out at room temperature, and the distance between the anode and the cathode is kept at about 2cm;

[0037] The entire electro-etching proces...

Embodiment 2

[0043] A preparation method for improving the interlaminar strength of a fiber metal laminate, the steps of the method are as follows:

[0044] (1) Perform surface pretreatment on the titanium alloy workpiece to be treated. The surface pretreatment process includes sandpaper grinding, ultrasonic cleaning with acetone to remove oil, and use of hot alkali to remove the oxide film;

[0045] (2) The configuration of the electrolyte: including the use of ethylene glycol as a solvent, the use of 1% ammonium fluoride and 2% water as a solute, that is, the mass ratio of the electrolyte is ethylene glycol: ammonium fluoride: Water = 97:1:2;

[0046] (3) Use graphite or titanium plate as the cathode, and the titanium alloy workpiece to be processed as the anode to perform electroetching; the entire electroetching process is carried out at room temperature, and the distance between the anode and the cathode is kept at about 2cm;

[0047]The entire electro-etching process is carried out ...

Embodiment 3

[0053] A preparation method for improving the interlaminar strength of a fiber metal laminate, the steps of the method are as follows:

[0054] (1) Perform surface pretreatment on the titanium alloy workpiece to be treated. The surface pretreatment process includes sandblasting and ultrasonic cleaning with acetone to remove oil;

[0055] (2) The configuration of the electrolyte: including the use of ethylene glycol as a solvent, the use of 1.5% ammonium fluoride and 3% water as a solute, that is, the mass ratio of the electrolyte is ethylene glycol: ammonium fluoride: Water = 97:1:2;

[0056] (3) Use graphite or titanium plate as the cathode, and the titanium alloy workpiece to be processed as the anode to perform electroetching; the entire electroetching process is carried out at room temperature, and the distance between the anode and the cathode is kept at about 2cm;

[0057] The entire electro-etching process is carried out at a constant voltage of 30V, and the etching ti...

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

No PUM Login to View More

Abstract

The invention discloses a fiber metal laminate preparation method capable of improving inter-laminar strength. According to the method, a titanium alloy sheet with a nano-scale neat hole structure ona surface can be prepared. The titanium alloy surface treated by the process has greater roughness and better wettability, and can be bonded to epoxy resin very well to form a firm interface layer anda strong mechanical chain so that the titanium alloy and the epoxy resin have very high bonding strength. It can be found from a single lap test of the titanium alloy-epoxy resin that the interlaminar shear strength of a treated sample is improved by 70 percent compared with that of an untreated sample. Compared with a mature titanium alloy NATES anodized surface treatment process, in a single lamp test, the interlaminar shear strength achieved by the method is improved by 22 percent compared with that achieved by an NATES method. The surface treatment technology can be widely applied to cementation of titanium alloy sheet metal parts and manufacturing of Ti / CFRP fiber metal laminate, and has a great practical value.

Description

technical field [0001] The invention relates to a method for manufacturing a fiber metal laminate, in particular to a titanium alloy surface treatment process that can effectively improve the bonding strength between titanium alloy and resin. Background technique [0002] Fiber Metal Laminates (Fiber Metal Laminates, FMLs) is a kind of hybrid structural composite laminate that is laminated and laid in a certain order by fiber-reinforced resin-based materials and metal sheets, and cured at a certain pressure and temperature. Because the structural laminate contains two materials with different properties, resin fiber and metal, it has the advantages of both materials; it has high mechanical strength and modulus, and has light weight and large damage tolerance. limit. Compared with traditional metal materials, fiber metal laminates have many advantages, and have been greatly developed and applied in the field of aviation industry, which has higher requirements for materials. ...

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
IPC IPC(8): C25F3/08B08B3/12B32B37/06B32B37/10B32B15/00B32B15/14B32B9/00B32B9/04B32B33/00
CPCB08B3/12B32B5/02B32B15/00B32B15/14B32B33/00B32B37/06B32B37/10B32B2262/106C25F3/08
Inventor 王欢叶竟彭华新郑超董家乐秦发祥罗阳
Owner ZHEJIANG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com