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Special composite slag removing agent for beryllium aluminum alloy refining, preparation method and slag removing method

A technology of beryllium aluminum alloy and slag agent, which is applied in the field of special compound slag remover for beryllium aluminum alloy refining and its preparation method and slag removal, can solve the problems such as inapplicable slag remover, achieve increased slag removal and degassing effect, and good Covering effect, effect of suppressing dust phenomenon

Active Publication Date: 2019-05-10
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide a special compound slag remover for beryllium aluminum alloy refining, which solves the problem that the existing flux in the prior art cannot be used as a slag remover for beryllium aluminum alloy refining

Method used

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  • Special composite slag removing agent for beryllium aluminum alloy refining, preparation method and slag removing method
  • Special composite slag removing agent for beryllium aluminum alloy refining, preparation method and slag removing method
  • Special composite slag removing agent for beryllium aluminum alloy refining, preparation method and slag removing method

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Embodiment 1

[0058] This embodiment discloses the preparation method and application of the special composite slag remover for beryllium aluminum alloy refining of the present invention.

[0059] The composite deslagging agent of the present embodiment contains the following components by weight: sodium tetraborate (Na 2 B 4 o 7 ) 40 parts, AlB 12 6 parts of master alloy, hexachloroethane (C 2 Cl 6 ) 5 parts, sodium hexafluorosilicate (Na 2 SiF 6 ) 10 parts, sodium hexafluoroaluminate (Na 3 AlF 6 ) 6 parts, sodium fluoride (NaF) 2 parts, potassium chloride (KCl) 10 parts, beryllium chloride (BeCl 2 ) 12 parts, lithium chloride (LiCl) 3 parts, sodium carbonate (Na 2 CO 3 ) 3 parts, clay 3 parts.

[0060] AlB in this example 12 The mass fraction of boron in the master alloy is 3.83%.

[0061] The preparation method of the composite slag remover in this embodiment is as follows: accurately weigh each raw material according to the parts by weight of the above-mentioned components,...

Embodiment 2

[0067] This embodiment discloses the preparation method of the special composite slag remover for beryllium aluminum alloy refining of the present invention.

[0068] The composite deslagging agent of the present embodiment contains the following components by weight: sodium tetraborate (Na 2 B 4 o 7 )45 parts, AlB 12 Master alloy 4 parts, hexachloroethane (C 2 Cl 6 ) 2 parts, sodium hexafluorosilicate (Na 2 SiF 6 ) 8 parts, sodium hexafluoroaluminate (Na 3 AlF 6 ) 2 parts, sodium fluoride (NaF) 5 parts, potassium chloride (KCl) 12 parts, beryllium chloride (BeCl 2 ) 10 parts, lithium chloride (LiCl) 5 parts, sodium carbonate (Na 2 CO 3 ) 5 parts, clay 2 parts.

[0069] AlB in this example 12 The mass fraction of boron in the master alloy is 4.89%.

[0070] The preparation method of the composite deslagging agent in this embodiment is as follows: accurately weigh each raw material according to the weight fraction of the above-mentioned components, and the purity of ...

Embodiment 3

[0075] This embodiment discloses the preparation method of the special composite slag remover for beryllium aluminum alloy refining of the present invention.

[0076] The composite deslagging agent of the present embodiment contains the following components by weight: sodium tetraborate (Na 2 B 4 o 7 )32 parts, AlB 12 8 parts master alloy, hexachloroethane (C 2 Cl 6 ) 5 parts, sodium hexafluorosilicate (Na 2 SiF 6 ) 9 parts, sodium hexafluoroaluminate (Na 3 AlF 6 ) 5 parts, sodium fluoride (NaF) 4 parts, potassium chloride (KCl) 12 parts, beryllium chloride (BeCl 2 ) 13 parts, lithium chloride (LiCl) 4 parts, sodium carbonate (Na 2 CO 3 ) 5 parts, clay 3 parts.

[0077] AlB in this embodiment 12 The mass fraction of boron in the master alloy is 3.11%.

[0078] The preparation method of the composite deslagging agent in this embodiment is as follows: accurately weigh each raw material according to the weight fraction of the above-mentioned components, and the purit...

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Abstract

The invention discloses a special composite slag removing agent for beryllium aluminum alloy refining, a preparation method and a slag removing method. The slag removing agent comprises the followingcomponents in parts by weight: 30-50 parts of sodium tetraborate, 2-8 parts of AlB12 intermediate alloy, 2-5 parts of hexachloroethane, 7-10 parts of sodium hexafluorisilicate, 2-6 parts of sodium fluoroaluminate, 1-5 parts of sodium fluoride, 5-12 parts of potassium chloride, 6-13 parts of beryllium chloride, 2-5 parts of lithium chloride, 2-5 parts of sodium carbonate, and 1-3 parts of clay. Theslag removing agent achieves excellent high-temperature stability and reliability under the vacuum condition, and is excellent in adhesiveness after melting, high in spreadability, quick in slag collection, easy incrustation of slag skin and excellent in slag removing and refining effect. Through the synergistic effect of all the components, oxides in melts, magnesium-contained impurities and hydrogen achieve excellent slag removing and absorbing effects; and meanwhile, the slag skin can effectively cover the surfaces of the melts, so that the temperature loss can be effectively reduced, thesplashing of the melts is inhibited, and new melting slag and secondary oxidation are prevented.

Description

technical field [0001] The invention belongs to the field of metal material refining slag removal, and in particular relates to a special composite slag remover for beryllium aluminum alloy refining and its preparation method and slag removal method. Background technique [0002] Beryllium aluminum alloy parts of various shapes and complex sizes can be prepared by precision casting technology. This method has the advantages of short production cycle and relatively low technical difficulty, but it also has the disadvantage that molten metal is easily oxidized. The chemical properties of metal beryllium and aluminum are lively, among which beryllium has extremely low reaction free energy with oxygen at 280 °C, and the oxidation of beryllium is accelerated when it is higher than 600 °C, and beryllium metal liquid and water vapor will violently occur at high temperatures. Aluminum has a similar chemical activity to beryllium, so solid impurity particles, harmful gases, and slag ...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C1/06C22C21/00
Inventor 余良波杨苏李鱼飞张晨姚志勇
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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