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Preparation device and preparation method of metal semi-solid billets

A preparation device and semi-solid technology, which is applied in the field of metal materials and metallurgy, can solve the problems of inability to use semi-solid blanks to prepare effects, complex equipment structure and operation, and high investment costs, and achieve low cost, simple preparation devices and process operations, The effect of high processing efficiency

Active Publication Date: 2015-08-19
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome that the existing semi-solid blank preparation technology is mostly used to prepare semi-solid blanks of low melting point non-ferrous alloys, but cannot be used to prepare semi-solid blanks of high melting point steel materials or the preparation effect is poor, and the equipment structure and operation are complicated , the deficiency of high investment cost, a kind of preparation device and preparation method of metal semi-solid billet are provided

Method used

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  • Preparation device and preparation method of metal semi-solid billets
  • Preparation device and preparation method of metal semi-solid billets
  • Preparation device and preparation method of metal semi-solid billets

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 As shown, the preparation device of a metal semi-solid blank in this embodiment includes a heating mechanism, a crucible 5 and a lifting platform 6, wherein the above-mentioned heating mechanism includes an AC power supply 1 and a heating coil, and the heating coil is connected to the AC power supply 1 through a wire , and the heating coil includes a first coil 401 and a second coil 402, the first coil 401 and the second coil 402 are connected in parallel, and the first coil 401 is located above the second coil 402; the crucible 5 is fixed on the lifting platform 6 and placed inside the first coil 401 and the second coil 402. The top of the crucible 5 is provided with a protective gas inlet 2 and a mounting hole through which a thermocouple 3 is fixed, and the sensing end of the thermocouple 3 extends into the inside of the crucible 5 .

[0044] The preparation method of a metal semi-solid blank in this embodiment includes conventional smelting, refini...

Embodiment 2

[0052] The preparation method of a metal semi-solid billet in this embodiment includes conventional smelting, refining treatment and cyclic remelting treatment procedures, wherein smelting, refining and cyclic remelting treatment all adopt figure 1 A device for preparing metal semi-solid blanks. In this embodiment, AZ91 magnesium alloy is selected as the test material, its liquidus temperature is 597°C, and its solidus temperature is 473°C. use figure 1 When preparing the semi-solid billet of the magnesium alloy in this embodiment, the AZ91 magnesium alloy is first placed in the crucible 5, and the first coil 401 and the second coil 402 are used to heat it to a molten state, and at 720 ° C Next, the metal melt is refined. After the refining process is completed, the subsequent cyclic remelting process is carried out on the magnesium alloy metal melt, and the protective gas inlet 2 is introduced during the entire process of smelting, refining and cyclic remelting. 2% SF 6 +C...

Embodiment 3

[0060] The preparation method of a metal semi-solid billet in this embodiment includes conventional smelting, refining treatment and cyclic remelting treatment procedures, wherein smelting, refining and cyclic remelting treatment all adopt figure 1 A device for preparing metal semi-solid blanks. In this embodiment, T10 tool steel is selected as the test material, its liquidus temperature is 1480°C, and its solidus temperature is 1350°C. use figure 1 When preparing the semi-solid blank of T10 tool steel in this embodiment, the T10 tool steel is first placed in the crucible 5, while using the first coil 401 and the second coil 402 to heat it to a molten state, and at 1600 The metal melt is refined at ℃, and after the refining process is completed, the T10 tool steel metal melt is subjected to subsequent cyclic remelting treatment process, and the protective gas is imported 2 during the whole process of smelting, refining and cyclic remelting treatment Into 2% SF 6 +CO 2 Mixe...

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Abstract

The invention discloses a preparation device and preparation method of metal semi-solid billets, which belong to the field of metal materials and metallurgical technologies. The preparation device of metal semi-solid billets disclosed by the invention comprises a heating mechanism, a crucible and a lifting platform, wherein the heating mechanism comprises an alternating-current power supply and a heating coil, the heating coil is connected with the alternating-current power supply by a lead, and the heating coil comprises a first coil and a second coil; and the crucible is fixed on the lifting platform and arranged in the first coil and the second coil. The preparation method of metal semi-solid billets disclosed by the invention comprises a step of cyclic remelting treatment, and the cyclic remelting treatment mainly comprises the following steps: alternately closing the first coil and the second coil, controlling that the center temperature of a metal melt is in a semi-solid temperature range, and cyclically moving the crucible upwards and downwards. Through the adoption of the invention, pure and pollution-free metal semi-solid billets can be obtained; and the preparation device is simple in equipment and operation and low in cost, and widely applied to various alloy materials.

Description

technical field [0001] The invention belongs to the technical field of metal materials and metallurgy, and more specifically relates to a preparation device and a preparation method of a metal semi-solid billet. Background technique [0002] The semi-solid forming technology of metal alloy materials is an advanced material forming technology developed in the 1970s. It combines the advantages of solidification processing and plastic processing, that is, the processing temperature is lower than that of liquid, and the deformation resistance is smaller than that of solid. Parts with complex shapes and high precision and performance quality requirements can be formed with a large amount of deformation at one time, so it is called the most promising material forming processing method in the 21st century. Compared with the traditional casting forming technology, the castings produced by this method have the advantages of less machining allowance, uniform structure, fine grain, les...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/00C22C33/00
Inventor 尹振兴王海川李杰田恒陈召飞孙宇恒钱立新
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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