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Aluminum alloy purifying medium for casting ingots

A technology of aluminum alloy and ingot casting, which is applied in the field of aluminum alloy purification medium and can solve the problem of high impurity content

Active Publication Date: 2020-01-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide an aluminum alloy purification medium for ingot casting to solve the problem of high impurity content in products obtained by ingot casting in the prior art

Method used

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  • Aluminum alloy purifying medium for casting ingots
  • Aluminum alloy purifying medium for casting ingots
  • Aluminum alloy purifying medium for casting ingots

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Embodiment Construction

[0017] The following is further described in detail through specific implementation methods:

[0018] The embodiment is basically as attached figure 1 As shown, an aluminum alloy purification medium for ingot casting, including KCl 20-30 parts, NaCl 20-40 parts, NaCl 2 CO 3 20~65 parts, CaSO 4 5-15 parts, Na 3 AlF 6 5-20 parts, CCl 4 0.5-1.0 parts, plant ash 20-30 parts. Prepare the purification medium as follows: mix the medium (including CCl 4 ) according to the proportion of the purification agent, when the temperature of the furnace reaches 730 ° C, first add in addition to CCl 4 All other purification media, keep at 730°C for about 10 minutes, and then add CCl in the proportion of the formula 4 .

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Abstract

The invention belongs to the technical field of purifying material casting, and in particular, discloses an aluminum alloy purifying medium for casting ingots. The medium comprises 20-30 parts of KCl,20-40 parts of NaCl, 20-65 parts of Na2CO3, 5-15 parts of CaSO4, 5-20 parts of Na3AlF6, 0.5-1.0 part of CCl4, and 20-30 parts of plant ash. The medium is mainly used for preparing casting ingots, andsolves the problem of high content of impurities in products obtained by ingot casting in the prior art.

Description

technical field [0001] The invention belongs to the technical field of casting purification materials, and specifically discloses an aluminum alloy purification medium for ingot casting. Background technique [0002] At present, the situation in the industry is as follows: 2XXX aluminum alloy large-size ingots are easy to inhale gas and produce various inclusions during the batching and smelting process, which directly affects the cleanliness of the alloy melt and affects the subsequent material forming properties and components. The mechanical properties and electrochemical properties are adversely affected. The melt purification technology before casting adopts a reasonable melt purification process, which can reduce the undesired gas, inclusions and impurity elements in the aluminum melt to the allowable range. The impurity gas in the aluminum melt is mainly hydrogen, accounting for 70% to 90% of the total gaseous impurities. The solid inclusions are mainly non-metallic ...

Claims

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Application Information

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IPC IPC(8): C22C1/06C22C1/02C22C21/00
CPCC22C1/06C22C1/026C22C21/00
Inventor 王旭成黄元春刘宇
Owner CENT SOUTH UNIV