Method for rapidly preparing gradient titanium plate based on vacuum hot pressing process

A vacuum hot pressing and gradient technology, which is applied in the field of non-ferrous metal plastic forming, can solve the problems of complex process flow and thin gradient layer, and achieve the effect of avoiding forming processing and improving strength.

Pending Publication Date: 2022-01-18
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention aims to solve the problem of complex technological process and thinner gradient layer in the prior art, and provides a simpler process to manufacture the gradient plate

Method used

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  • Method for rapidly preparing gradient titanium plate based on vacuum hot pressing process
  • Method for rapidly preparing gradient titanium plate based on vacuum hot pressing process
  • Method for rapidly preparing gradient titanium plate based on vacuum hot pressing process

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1: The preparation method of the gradient titanium plate in this embodiment specifically comprises the following steps:

[0031] Step 1, first prepare titanium foils with thicknesses of 10 μm, 20 μm, 50 μm, and 100 μm, then use alcohol to ultrasonically clean the titanium foils for 5 minutes to 10 minutes, then use 10vol% HF solution to clean the surface of the Ti foils to remove surface oxide skin, and finally After ultrasonic cleaning with alcohol for 2 to 5 minutes, dry it and put it in a dust-free box for later use;

[0032] Step 2, use the washed titanium foil to design the gradient structure. The number of layers of titanium foil laminates of each thickness is different, but the thickness of the laminates of different thickness titanium foils is the same, and the thickness is stacked from thin to thick and then to thin. layers, see the laminated structure figure 1 , the total thickness of the gradient titanium plate after stacking is 1.6mm;

[0033] S...

Embodiment 2

[0036] Embodiment 2: The preparation method of the gradient titanium plate in this embodiment specifically comprises the following steps:

[0037] Step 1, first prepare titanium foils with thicknesses of 20 μm, 50 μm, and 100 μm, then use alcohol to ultrasonically clean the titanium foil for 10 minutes, then use 10vol% HF solution to clean the surface of the Ti foil to remove surface oxide skin, and finally use alcohol to ultrasonically clean After 5 minutes, dry it and put it in a dust-free box for later use;

[0038] Step 2, use the washed titanium foil to design the gradient structure. The number of layers of titanium foil laminates of each thickness is different, but the thickness of the laminates of different thickness titanium foils is the same, and the thickness is stacked from thin to thick and then to thin. layers, see the laminated structure figure 1 , the total thickness of the gradient titanium plate after stacking is 1.2mm;

[0039] Step 3, using a steel wire ro...

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Abstract

The invention discloses a method for rapidly preparing a gradient titanium plate based on a vacuum hot pressing process, and belongs to the field of nonferrous metal plastic forming. The problems that in the prior art, the technological process is complex, and a prepared gradient layer is thin are solved. The additive manufacturing principle and the machining principle are combined, material units are constructed in the macroscopic state, and the macroscopic large-scale gradient layered titanium plate is obtained through the self-assembly process. According to the method, titanium foils with various thicknesses are mechanically combined through vacuum hot pressing, the grain gradient is formed from the surface layer to the core of the titanium plate, the gradient titanium plate is prepared through the foil-foil metallurgy method, the good room-temperature deformation and formability characteristics of the foils are utilized, plates and other structural parts with complex shapes can be approximately formed, and subsequent plate forming processing is avoided; the gradient titanium plate with certain toughness and better strength is obtained by controlling the hot pressing temperature and the processing method.

Description

technical field [0001] The invention belongs to the field of plastic forming of non-ferrous metals, and in particular relates to a method for rapidly preparing gradient titanium plates based on a vacuum hot pressing process. Background technique [0002] Titanium has many excellent comprehensive properties: titanium alloy has low density, high melting point (the melting point of titanium is 1668 ℃, slightly higher than that of iron and nickel, and more than 1000 ℃ higher than the melting point of aluminum and magnesium), high specific strength (while strength and Ordinary structural steel is equivalent or higher. Among metal structural materials, titanium has the highest specific strength), and good corrosion resistance (titanium is very easy to form a solid oxide film on the surface with oxygen in an oxidizing atmosphere. Atmosphere, seawater, soil and many chemical media have strong corrosion resistance), high fatigue strength, etc., and enjoy the reputation of "strategic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 房文斌姜雪晴李学问吴昊范国华
Owner HARBIN UNIV OF SCI & TECH
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