High-stability polynary composite oxide refractory material for high-activity high-temperature alloy smelting, and application and preparation method thereof

A multi-component composite and refractory technology is applied in the fields of composite oxide refractory materials and their application and preparation, and refractory materials and their application and preparation fields. Achieve the effect of low preparation cost, good thermal shock resistance and good hydration resistance

Inactive Publication Date: 2019-01-11
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after the titanium alloy is smelted in a graphite crucible, the alloy will increase carbon, which will reduce the performance of the alloy.
The melting effect of calcium oxide crucible is better, but it is easy to hydrate and difficult to store
The yttrium oxide crucible has good melting effect, but its thermal shock resistance is poor and expensive, so it is not suitable for industrial production

Method used

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  • High-stability polynary composite oxide refractory material for high-activity high-temperature alloy smelting, and application and preparation method thereof
  • High-stability polynary composite oxide refractory material for high-activity high-temperature alloy smelting, and application and preparation method thereof

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Effect test

Embodiment 1

[0042] In this embodiment, a high-stability multi-component composite oxide refractory material for high-activity superalloy smelting, its components include alkaline earth metal element compounds, transition metal element compounds and rare earth element compounds; in this embodiment, alkaline earth metal The element compound main phase component compound and the alkaline earth metal element compound doping phase component compound are different compounds;

[0043] Among them, the alkaline earth metal element compound includes BaCO as the main phase component compound of the alkaline earth metal element compound 3 and CaCO as an alkaline earth metal element compound doped phase component compound 3 ; The transition metal element compound is ZrO 2 ; The rare earth element compound is Y 2 o 3 ; using pure BaCO 3 ,CaCO 3 ,ZrO 2 and Y 2 o 3 , the ratio of each component calculated according to the mole percentage of the components of the multi-element composite oxide refr...

Embodiment 2

[0059] This embodiment is basically the same as Embodiment 1, especially in that:

[0060] In this embodiment, a method for preparing a high-stability multi-component composite oxide refractory material for smelting a high-activity superalloy comprises the following steps:

[0061] a. Take alkaline earth metal element compounds, transition metal element compounds and rare earth element compounds as raw materials according to the composition ratio, wherein the alkaline earth metal element compounds include BaO as the main phase component compound of the alkaline earth metal element compound and BaO as the alkaline earth metal element compound CaO for doped phase component compounds; TiO for transition metal element compounds 2 ; The rare earth element compound is Yb 2 o 3 ; Using pure BaO, CaO, TiO 2 and Yb 2 o 3 , the raw material ratio of each component calculated according to the mole percentage of the components of the multi-element composite oxide refractory is as fol...

Embodiment 3

[0067] This embodiment is basically the same as the previous embodiment, and the special features are:

[0068] In this embodiment, a method for preparing a high-stability multi-component composite oxide refractory material for smelting a high-activity superalloy comprises the following steps:

[0069] a. Take alkaline earth metal element compounds, transition metal element compounds and rare earth element compounds as raw materials according to the composition ratio, wherein the alkaline earth metal element compounds include Ba(OH) as the main phase component compound of alkaline earth metal element compounds 2 and Ca(OH) as an alkaline earth metal element compound doping phase component compound 2 ; The transition metal element compound is TiO 2 ; The rare earth element compound is CeO 2 ; Using pure Ba(OH) 2 , Ca(OH) 2 、TiO 2 and CeO 2 , the raw material ratio of each component calculated according to the mole percentage of the components of the multi-element composit...

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Abstract

The invention discloses a high-stability polynary composite oxide refractory material for high-activity high-temperature alloy smelting, and an application and a preparation method thereof. The refractory material mainly comprises, by mole, 46.2-53.5% of a transition metal element compound, 0.5-2.5% of a rare earth element compound, and the balance of an alkaline earth metal element compound. Therefractory material has the advantages of good stability, good hydration resistance, good resistance to erosion of high-activity high-temperature alloy, realization of high alloy purity after smeltingof the high-activity alloy, and significant reduction of the pollution to the high-activity alloy, and a crucible produced from the high-stability polynary composite oxide refractory material can beused for smelting the high-temperature alloy, and has the advantages of good hydration resistance, easiness in storage, good thermal shock resistance, low production cost, and suitableness for industrial production.

Description

technical field [0001] The invention relates to a refractory material and its application and preparation method, in particular to a composite oxide refractory material and its application and preparation method, which is applied to the technical field of refractory materials for high-temperature smelting. Background technique [0002] Titanium and titanium alloys have high specific strength, specific toughness, excellent corrosion resistance, high temperature resistance and weldability, and have the characteristics of non-magnetic, anti-ballistic, sound transmission, etc., so they are widely used in aerospace, national defense, biomedicine and petrochemical industries. However, titanium alloys are expensive to prepare, and mainly smelting technology limits their wide application. [0003] At present, the main production of titanium and titanium alloys is to use consumable electrode electric arc furnace combined with water-cooled copper crucible melting equipment, but the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C22C1/02
CPCC04B35/66C22C1/02
Inventor 李重河鲁雄刚康菊芸王世华兰豹豹陈光耀
Owner SHANGHAI UNIV
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