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Preparation method for reducing zirconium compound segregation of zirconium-containing magnesium alloy cast ingot ZK61M

A ZK61M, zirconium compound technology is applied in the field of preparation of reducing zirconium compound segregation of ZK61M zirconium-containing magnesium alloy ingots, which can solve problems such as Zr compound segregation, and achieve the effects of reducing segregation, improving ingot quality, and reducing melt impurity content

Active Publication Date: 2016-10-12
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that a large amount of Zr compound segregation is produced in the casting process of the existing ZK61M zirconium-containing magnesium alloy ingot, the present invention provides a method for preparing a ZK61M zirconium-containing magnesium alloy ingot that reduces compound segregation

Method used

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  • Preparation method for reducing zirconium compound segregation of zirconium-containing magnesium alloy cast ingot ZK61M
  • Preparation method for reducing zirconium compound segregation of zirconium-containing magnesium alloy cast ingot ZK61M
  • Preparation method for reducing zirconium compound segregation of zirconium-containing magnesium alloy cast ingot ZK61M

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specific Embodiment approach 1

[0030] Embodiment 1: In this embodiment, a preparation method for reducing the segregation of zirconium compounds in ZK61M zirconium-containing magnesium alloy ingots is carried out according to the following steps:

[0031]1. Weighing materials: Zn: 5.1% to 5.5%, Zr: 0.45% to 0.55% and the balance Mg according to the mass percentage of each element, respectively weigh zinc ingots, magnesium-zirconium master alloys and magnesium ingots as raw materials;

[0032] 2. Feeding and melting

[0033] First, evenly spread a layer of 2# flux on the bottom of the melting furnace, add the magnesium ingot weighed in step 1 into the melting furnace and evenly cover the upper surface of the magnesium ingot with 2# flux, heat the melting furnace until the magnesium ingot turns into a magnesium melt , put the zinc ingot and magnesium-zirconium master alloy weighed in step 1 into the incineration device, hoist the incineration device into the raw material heating furnace for preheating, and wh...

specific Embodiment approach 2

[0054] Embodiment 2: This embodiment differs from Embodiment 1 in that: the melting furnace described in Step 1 is a dry pot melting furnace. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0055] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the upper surface of the cylindrical metal cage described in step 1 is open, the lower surface is metal strips arranged in parallel horizontally, and the sides are metal strips arranged in parallel vertically. The upper part of the side is provided with a lifting hook. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method for reducing zirconium compound segregation of a zirconium-containing magnesium alloy cast ingot ZK61M, and relates to a preparation method for the zirconium-containing magnesium alloy cast ingot. In order to solve the problem that a great deal of Zr compound segregation is generated in a casting process of a current zirconium-containing magnesium alloy cast ZK61M, the preparation method comprises the following steps: I, weighing materials; II, adding materials and smelting by utilizing an stirring-up device; III, carrying out argon-gas refining; IV, stirring and refining; V, spraying powder and refining; and VI, casting. The preparation method can be used for obtaining the zirconium-containing magnesium alloy cast ZK61M with low compound segregation; diameter of the prepared zirconium-containing magnesium alloy cast ZK61M is 92mm-485mm, appearance is complete, obvious defects are avoided, content of melt impurities is low, and Zr compound segregation of the magnesium alloy cast ingot can be effectively reduced. The preparation method is suitable for preparing the zirconium-containing magnesium alloy cast ingot ZK61M.

Description

technical field [0001] The invention relates to a preparation method for reducing the segregation of zirconium compounds in ZK61M zirconium-containing magnesium alloy ingots. Background technique [0002] ZK61M belongs to the Mg-Zn-Zr series and is a high-strength wrought magnesium alloy that can be strengthened by heat treatment. It has high strength, good comprehensive performance, excellent cutting performance, and corrosion resistance. It is suitable for use under artificial aging after hot extrusion. It is used to manufacture aircraft fuselage trusses and control system rocker arms, supports and other stressed components whose working temperature does not exceed 150°C. It is a structural material widely used in aerospace at home and abroad, mainly for extruded products and die forgings. . The main purpose of adding Zr to the alloy is to refine the grains and increase the recrystallization temperature, which can significantly improve the strength performance and compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/04C22C1/03C22C1/06
CPCC22C1/03C22C1/06C22C23/04
Inventor 石广福李海仙高新宇贾宁孔祥生王英军王殿坤甄湛鑫金磊
Owner NORTHEAST LIGHT ALLOY CO LTD
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