Titanium and titanium alloy short-process preparation device and method

A preparation device and a technology for titanium alloys, which are applied in the field of titanium and titanium alloy short-flow preparation devices, can solve the problems of inability to eliminate high and low density inclusions, narrow smelting application range, complex processing technology, etc., so as to improve melting effect and preparation The effect of improving efficiency and improving molding quality

Active Publication Date: 2018-09-18
SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now these technologies are quite mature, but they still have corresponding shortcomings, such as the inability to eliminate high and low density inclusions, narrow application range of smelting, single raw material form, complicated subsequent processing technology, and continuous preparation, etc.

Method used

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  • Titanium and titanium alloy short-process preparation device and method
  • Titanium and titanium alloy short-process preparation device and method
  • Titanium and titanium alloy short-process preparation device and method

Examples

Experimental program
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Effect test

preparation example Construction

[0068] Based on the above figure 1 The short-process preparation method for preparing titanium and titanium alloys with advanced preparation equipment generally includes continuous feeding, alloy smelting, solidification and down-drawing, fixed-length cutting, finished product turning and conveying processes, and realizes the preparation process of one-time cooling bed smelting and forming.

[0069] combine figure 1 The preparation device shown, the process of the short-flow preparation method of titanium and titanium alloys will be described in more detail below.

[0070] Step 1. Continuous feeding: Add the raw material (sponge titanium or the mixture of sponge titanium and intermediate alloy) into the upper silo 8, close the first and second vacuum slide valves 10-1 and 10-2, and then pump the material through the vacuum pump. Vacuum, open the second vacuum slide valve 10-2 after the vacuum value reaches the set value, the vacuum value range is ≤5Pa, the raw material enters...

Embodiment 1

[0089] This embodiment provides a short-process preparation method for titanium and titanium alloys, including the following steps:

[0090] a. Continuous feeding: Put 120kg of titanium sponge into the feeding mechanism and then vacuumize to 3pa, then add the raw materials to the 1.1atm argon-filled protective atmosphere device, and then put 120kg of titanium sponge into the feeding mechanism to achieve continuous feeding; Transport the titanium sponge in the feeding mechanism to the water-cooled copper hearth in the raw material smelting chamber;

[0091] b. Alloy smelting: When the amount of sponge titanium in the water-cooled copper hearth reaches a certain level, the smelting plasma gun starts to generate plasma arc spots to melt the sponge titanium. When the pure titanium liquid flows under the refining plasma gun to form a condensed shell, the refining plasma gun starts Refining pure titanium liquid;

[0092] c. Solidification pull-down: When the liquid level of pure ti...

Embodiment 2

[0101] This embodiment provides a short-process preparation method for titanium and titanium alloys, including the following steps:

[0102] a. Continuous feeding: Put 120kg of titanium sponge into the feeding mechanism and vacuumize to 2pa, then add the raw materials into the 1.1atm argon-filled protective atmosphere device, and then put 120kg of premixed material into the feeding mechanism to achieve continuous feeding ;Transfer the titanium sponge in the feeding mechanism to the water-cooled copper hearth in the raw material smelting chamber;

[0103] b. Alloy smelting: When the amount of sponge titanium in the water-cooled copper hearth reaches a certain level, the smelting plasma gun is started to generate a plasma arc spot to melt the premixed material. When the pure titanium liquid flows under the refining plasma gun to form a condensed shell, the plasma gun is refined Start refining pure titanium liquid;

[0104] c. Solidification and pull-down: When the liquid level ...

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Abstract

The invention belongs to the field of titanium alloy preparation devices, and discloses a titanium and titanium alloy short-process preparation device and method. The titanium and titanium alloy short-process preparation device specifically comprises a feeding mechanism, a smelting chamber, a crystallizing mechanism, a roller wheel conveying mechanism, a cutoff mechanism, an automatic turnover device, an automatic push mechanism and a horizontal conveying track. The feeding mechanism continuously conveys raw materials to a water-cooling copper hearth in the smelting chamber, the raw materialsare smelted through plasma guns to form liquid metal, the liquid metal overflows to the crystallizing mechanism to conduct forming of pipes or bars, then the pipes or the bars are conveyed by the roller wheel conveying mechanism and cut by the cutoff mechanism to form pipes or bars with the set value lengths, and the pipes or the bars with the fixed lengths fall into the automatic turnover device,are overturned and then are pushed out by the automatic push mechanism to the horizontal conveying track so as to be conveyed out. According to the titanium and titanium alloy short-process preparation device and method, the raw material continuity design is adopted, the preparation technological process is shortened, and therefore rapid forming of the bars or the pipes with different specifications from titanium sponges is achieved, and the preparation technology is continuous.

Description

technical field [0001] The invention relates to the field of metal material preparation and processing, in particular to a short-process preparation device and method for titanium and titanium alloys. Background technique [0002] Due to their low density, high specific strength, high temperature resistance, corrosion resistance, non-magnetic, biocompatibility and other excellent properties, titanium and titanium alloys have been widely used in aviation, aerospace, ships and other fields. However, the high cost of titanium limits the use of titanium. And the application scope of titanium alloy, especially in the civil field. At present, in addition to the high cost of raw materials in industrial titanium alloys, vacuum melting and processing of titanium and titanium alloys account for 60% of the total cost, which also affects the scope of use of titanium alloys. In order to reduce the cost of titanium alloys, researchers related to titanium and titanium alloys have carried ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/12C22B9/22B22D11/041B22D11/10B22D11/126
CPCB22D11/001B22D11/006B22D11/041B22D11/10B22D11/126C22B9/226C22B34/1295Y02P10/25
Inventor 常辉张尧陈小龙孙中刚张文书唐明亮
Owner SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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