A processing method for melting tc4 alloy in an electron beam cooling hearth furnace and a processing method for a medium-thick slab

A technology of electron beam cooling hearth furnace and processing method, applied in the field of titanium alloy

Active Publication Date: 2020-02-07
QINGHAI JUNENG TITANIUM IND CO LTD
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  • Application Information

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Problems solved by technology

Relevant researchers at home and abroad have used various methods to study the volatilization and precise control of Al elements in the smelting process, but the current research is limited to the composition uniformity of TC4 alloy ingots smelted in EB furnaces, and there is no research on the preparation of TC4 alloys in cold bed furnaces. Subsequent processing reports

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  • A processing method for melting tc4 alloy in an electron beam cooling hearth furnace and a processing method for a medium-thick slab
  • A processing method for melting tc4 alloy in an electron beam cooling hearth furnace and a processing method for a medium-thick slab
  • A processing method for melting tc4 alloy in an electron beam cooling hearth furnace and a processing method for a medium-thick slab

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Embodiment Construction

[0024] In order to explain the overall concept of the present application more clearly, the following detailed description will be given by way of examples in combination with the accompanying drawings.

[0025] In order to obtain the processing performance of TC4 alloy smelted in electron beam cooling bed EB furnace, the inventor organized a large number of experiments to verify the difference between TC4 alloy melting in electron beam cooling bed EB furnace and general metals through processing experiments of different deformation modes and deformation amounts. Processing law, for general metals, the process determines the microstructure, and the microstructure determines the mechanical properties. However, the results presented in the deformation processing test of the TC4 alloy prepared by the EB furnace are not exactly the same as the law.

[0026] A detailed discussion will be made below in conjunction with a set of experiments shown in Table 1. The experimental blanks i...

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Abstract

The application discloses a TC4 alloy processing method by electronic beam cold-hearth melting. The method comprises the following steps: primarily smelting a TC4 alloy ingot by means of an electronicbeam cold-hearth; and carrying out first deformation processing on the TC4 alloy ingot to obtain a TC4 alloy intermediate part, wherein the first deformation processing technology is determined according to the thermal treatment state of the TC4 alloy intermediate part; if the final state is a forged state or an annealed state, the first deformation technology is direct stretching or upsetting and stretching, and if the final state is a solid state plus aging state (STA), the first deformation technology is upsetting and stretching.

Description

technical field [0001] The present application relates to the field of titanium alloys, in particular to a processing method for smelting TC4 alloys in an electron beam cooling hearth furnace and a processing method for medium-thick slabs. Background technique [0002] Advanced aircraft design puts forward higher and higher requirements on the life and reliability of aero-engines. A high-quality titanium alloy ingot with uniform composition and no inclusions is the first problem to be solved in the preparation of key titanium alloy parts for aero-engines. Long-term research and application results show that multiple vacuum consumable arc melting cannot completely remove inclusions and ensure composition uniformity, and metallurgical defects such as inclusions and segregation are prone to occur during the alloy preparation process. Therefore, breaking the traditional smelting preparation method of titanium alloys and preparing high-quality ingots is the primary problem to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/02C22F1/18
CPCB21C37/02C22F1/183
Inventor 张志斌雷云清孙少云汪晓江张银洪
Owner QINGHAI JUNENG TITANIUM IND CO LTD
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