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Titanium alloy hydrogenation method based on zone melting

A technology of regional smelting and regional smelting furnace, which is applied in the field of material preparation, can solve the problems of non-continuous production, low hydrogen storage efficiency, and small amount of liquid hydrogen storage smelting, and achieve the effect of uniform distribution of hydrogen content and simple process

Inactive Publication Date: 2019-05-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the shortcoming that solid-state hydrogenation is only applicable to thin-walled components, the efficiency of hydrogenation is low, and the melting amount of liquid hydrogenation is small, and continuous production is not possible; the invention provides a titanium alloy based on zone smelting that can realize continuous production. Alloy hydrogenation method, the specific steps are as follows:

Method used

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  • Titanium alloy hydrogenation method based on zone melting
  • Titanium alloy hydrogenation method based on zone melting
  • Titanium alloy hydrogenation method based on zone melting

Examples

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Embodiment 1

[0014] Example 1: as figure 1 As shown, in this embodiment, the Ti-6Al-4V alloy (the composition is shown in the table) is used as the hydrogenation object, which specifically includes the following steps:

[0015]

[0016] (1) The Ti-6Al-4V rod-shaped material with a diameter of 30mm purchased from the market is clamped on the sample holder I2 and the sample holder II6 in the furnace body 1 of the regional melting furnace, and the titanium alloy rod 3 passes through the induction coil 7. , close the furnace cover;

[0017] (2) Turn on the vacuum pump and evacuate the furnace body until the vacuum degree is lower than 10 -2 Pa, charge hydrogen into the furnace from the air inlet 8, and the hydrogen pressure is 0.3MPa;

[0018] (3) Turn on the power supply 5 to supply power to the induction coil, so that the titanium alloy rod is melted in the induction coil 7 (melting temperature 1660°C, heating temperature 1660°C), and the width of the melting zone 4 is 10mm;

[0019] (...

Embodiment 2

[0020] Embodiment 2: This embodiment uses Ti-6Al-4V alloy (the composition is shown in the table) as the hydrogen placement object, which specifically includes the following steps:

[0021]

[0022] (1) The Ti-6Al-4V rod-shaped material with a diameter of 20mm purchased in the market is clamped on the sample holder I and the sample holder II in the regional melting furnace, and the titanium alloy rod is passed through the induction coil, and the furnace cover is closed;

[0023] (2) Turn on the vacuum pump and evacuate until the vacuum degree is lower than 10 -2 Pa, fill the furnace with hydrogen, and the hydrogen pressure is 0.5MPa;

[0024] (3) Turn on the power supply to supply power to the induction coil, so that the titanium alloy rod is melted in the induction coil (melting temperature 1660℃, heating temperature 1670℃), and the width of the melting zone is 15mm;

[0025] (4) Start the traction device to drive the titanium alloy rod to move vertically upward at a movi...

Embodiment 3

[0026] Embodiment 3: This embodiment takes Ti-6Al-4V alloy (the composition is shown in the table) as the processing object, and specifically includes the following steps:

[0027]

[0028] (1) The Ti-6Al-4V rod-shaped material with a diameter of 10mm purchased in the market is clamped on the sample holder I and the sample holder II in the regional melting furnace, and the titanium alloy rod is passed through the induction coil, and the furnace cover is closed;

[0029] (2) Turn on the vacuum pump, and the vacuum degree is lower than 10 -2 Pa, fill the furnace with hydrogen, and the hydrogen pressure is 0.8MPa;

[0030] (3) Turn on the power supply to supply power to the induction coil, so that the titanium alloy rod is melted in the induction coil (melting temperature 1660℃, heating temperature 1680℃), and the width of the melting zone is 20mm;

[0031] (4) Start the traction device to drive the titanium alloy rod to move vertically upward at a moving speed of 10mm / min, s...

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Abstract

The invention discloses a titanium alloy hydrogenation method based on zone melting. The titanium alloy hydrogenation method comprises the steps: a titanium alloy material is clamped in a zone meltingfurnace and penetrates through an induction coil in the zone melting furnace, and a furnace lid is closed; vacuumizing is conducted till the vacuum degree is lower than 10<-2> Pa, then hydrogen is introduced, and the pressure of the hydrogen is 0.1-1 MPa; a power supply is turned on to supply power to the induction coil, and thus the titanium alloy material is molten in the induction coil; and atraction device is started to drive the titanium alloy material to vertically upwards move, and continuous hydrogenation of a titanium alloy in the zone melting furnace is achieved. The titanium alloyhydrogenation method overcomes the disadvantages that a solid-state hydrogenation thin-wall part is low in efficiency, and liquid-state hydrogenation cannot achieve continuous production, is simple in process, and is suitable for industrial production and market application and popularization.

Description

technical field [0001] The invention relates to a titanium alloy hydrogen placement method based on regional smelting, and belongs to the field of material preparation. Background technique [0002] Most of the deformation of titanium alloys needs to be carried out at high temperature, but the high thermal deformation temperature and high deformation resistance of titanium alloys are problems faced in the field of plastic deformation of titanium alloys. Hydrogenation of titanium alloys can significantly reduce the plastic deformation temperature and flow stress, so that titanium alloys can easily achieve plastic deformation such as rolling and hot forging at lower temperatures, and vacuum hydrogen removal after plastic deformation can further refine the microstructure. Improve the performance of titanium alloys. [0003] The current hydrogenation methods of titanium alloys are mainly solid state hydrogenation and liquid hydrogenation. The solid-state hydrogenation technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C14/00
Inventor 金青林李省霖李再久
Owner KUNMING UNIV OF SCI & TECH