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A method for improving the interface bonding strength of titanium/aluminum composite plate

A technology of interface bonding strength and aluminum composite board, applied in the direction of manufacturing tools, vacuum evaporation plating, coating, etc., can solve the problems of many uncontrollable factors and affecting the effect of metal surface treatment, so as to increase the contact area and reduce the crystal orientation Structure, effect of strong metallurgical bonding

Active Publication Date: 2022-02-22
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical treatment can remove the adsorption layer and oxide layer on the metal surface, and produce a brittle hard film on the metal surface through work hardening. The brittle hard film is broken in the later metal plate composite to achieve the bonding of the fresh metal surface, but the mechanical treatment process cannot There are many controlling factors, which affect the effect of metal surface treatment

Method used

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  • A method for improving the interface bonding strength of titanium/aluminum composite plate
  • A method for improving the interface bonding strength of titanium/aluminum composite plate
  • A method for improving the interface bonding strength of titanium/aluminum composite plate

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Embodiment 1

[0031] The present invention adopts a figure 1 The shown ion source sputtering device pre-treats the surface of the metal plate. The device includes a vacuum chamber 1, a sputtering ion source 2 is installed on the upper end of the vacuum chamber 1, and a rotary device is installed at the bottom of the vacuum chamber 1 corresponding to the sputtering ion source 2. The sample stage 3, the lower end of the sample stage 3 is connected to the external bias power supply 8 of the vacuum chamber 1, the upper part of the vacuum chamber 1 is provided with an argon gas inlet hole 4 and a nitrogen gas inlet hole 5, and the front ends of the gas inlet holes are respectively provided with an argon gas flow rate Meter 6 and nitrogen flowmeter 7, the bottom of the vacuum chamber 1 is provided with an air outlet 9, and the outside of the air outlet 9 is connected to a vacuum device 10.

[0032] Now carry out tests on metal titanium plates and aluminum plates with a length of 10 cm, a width of...

Embodiment 2

[0039] This embodiment provides a figure 1 The method for improving the interfacial bond strength of the titanium / aluminum composite plate by the device comprises the following steps:

[0040] (1) Metal plate pretreatment: Mechanically grind and polish the metal titanium plate and aluminum plate, then immerse in acetone and alcohol in turn, perform ultrasonic cleaning for 5 minutes each, and dry with cold air for later use;

[0041] (2) Put the pretreated metal plate 11 on the sample stage 3 in the vacuum chamber 1 , and adjust the distance between the metal plate 11 and the ion sputtering source 2 to be 40 cm. Vacuumize the vacuum chamber 1 through the air outlet 9 with a vacuum device 10 to make the vacuum degree reach 6×10 −4 Pa, then feed argon into the vacuum chamber 1 through the argon inlet hole 4, the flow of argon is controlled by the flowmeter 6 to be 40 sccm, when the vacuum chamber 1 pressure is stable at 5 * 10 −2 At Pa, turn on the rotating sample stage 3, tur...

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Abstract

The invention discloses a method for improving the interface bonding strength of a titanium / aluminum composite plate, which belongs to the technical field of metal material surface engineering. The method comprises the following steps: putting the pretreated metal titanium plate and the aluminum plate on the sample stage of the vacuum plasma activation equipment; Negative bias, turn on the ion sputtering source, the argon gas is excited to form argon ions to bombard the surface of the metal titanium plate and aluminum plate, and perform the first etching treatment; then turn off the argon gas, and pass nitrogen gas into the vacuum chamber to form nitrogen ions to bombard the metal The surface of the titanium plate and the aluminum plate is subjected to a second activation treatment; finally, the two metal plates are taken out for composite rolling with flat rolls at room temperature. Both the metal titanium plate and the aluminum plate treated by the present invention have a fresh and clean activated surface, show good adhesion and bonding force, significantly improve the shear strength of the titanium / aluminum composite plate, and the rolled composite plate has a relatively high High interfacial bonding strength.

Description

technical field [0001] The invention relates to a method for improving the interface bonding strength of a titanium / aluminum composite plate, which belongs to the technical field of metal material surface engineering. Background technique [0002] Titanium / aluminum composite plate is a new type of lightweight high-temperature structural material with high specific strength, specific modulus, good high temperature creep resistance and oxidation resistance, and its plate has broad application prospects in thermal protection systems. However, the currently prepared titanium / aluminum composite panels generally have low bonding strength and easy cracking of the interface, which seriously affects their application. The main reason is that the plasticity of titanium metal is poor when it is rolled at room temperature. The deformation of titanium and aluminum is not uniform when the titanium-aluminum composite plate is rolled. The harder titanium layer has far less ductility than th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38B21B15/00B21B47/00C23C14/02C23C14/06C23C14/34
CPCB21B1/38B21B15/00B21B47/00C23C14/022C23C14/0036C23C14/0641C23C14/0617B21B2001/386
Inventor 周兵马永吴艳霞王永胜黑鸿君高洁申艳艳
Owner TAIYUAN UNIV OF TECH
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