CN104046818B - The production technique of a kind of Al-20Cr master alloy - Google Patents
The production technique of a kind of Al-20Cr master alloy Download PDFInfo
- Publication number
- CN104046818B CN104046818B CN201410311732.2A CN201410311732A CN104046818B CN 104046818 B CN104046818 B CN 104046818B CN 201410311732 A CN201410311732 A CN 201410311732A CN 104046818 B CN104046818 B CN 104046818B
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- Prior art keywords
- aluminium
- master alloy
- ingot
- alloy
- chromium
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 22
- 239000000956 alloy Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004411 aluminium Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000010792 warming Methods 0.000 claims abstract description 5
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 5
- 238000005275 alloying Methods 0.000 abstract description 5
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000002244 precipitate Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses the production technique of a kind of Al-20Cr master alloy; specific as follows: in main frequency furnace or crucible oven; when adopting Al99.70 remelting aluminium ingot to be warming up to 850��950 DEG C; it is the hafnium metal powfer of 0.5-1mm by size; and add insulating covering agent simultaneously, under the protection of general ternary insulating covering agent, add melt and violent stirring in batches; do not make generation precipitate, it is cast into magnificent husband's ingot that chromium content is 18-22%. The present invention uses remelting aluminium ingot, chromium metal to be raw material, adopt the founding improved, produce Al-20Cr master alloy, the alloying element content of traditional aluminium chromium master alloy can be brought up to 18-22% from 3-5%, facilitate cast aluminium alloy, the composition adjustment of the user of wrought aluminium alloy when using, be conducive to quality control and the cost control of user.
Description
Technical field
The present invention relates to aluminium alloy manufacture field, refer more particularly to the production technique of a kind of Al-20Cr master alloy.
Background technology
Along with the development of aluminum processing technology, the requirement of the constituent content of aluminium intermediate alloy, kind is more and more higher.
Aluminium intermediate alloy is used to adjust a kind of traditional product of molten aluminium composition, it is possible to produce by aluminium and other metallic element scorification, and part kind also the salt reduction by aluminium with containing metallic element the method such as can produce. More traditional scorification is added in metallic element higher for some fusing points in the aluminium liquid of melting to be mixed with master alloy, the temperature of fusion of these master alloys significantly reduces, thus make the metallic element that some temperature of fusion are higher can join in the aluminium liquid manufacturing finished product under lower technological temperature, to adjust the constituent content of melt, keep finished product aluminium liquid quality simultaneously.
The feature of aluminium intermediate alloy: uniform ingredients; Temperature of fusion is low; It is easy to broken; It is convenient to add; Component content height; It is easy to absorb.
In production application, from the aspect such as easy-to-use, people wish that the alloying element content of master alloy is higher as far as possible, but, from the characteristic of alloying element, the particularly characteristic of some high-melting-point elements, and the condition of factory's technical equipment, for a long time, the alloying element content of part aluminium intermediate alloy is not high, as aluminium chromium master alloy is only 3-5%. The chromium content how improving aluminium chromium master alloy is all a technical barrier for a long time.
Summary of the invention
It is an object of the invention to overcome above-mentioned weak point of the prior art and provide a kind of production technique simple, alloy mass height, the production technique of the Al-20Cr master alloy that cost is low.
The present invention realizes in the following way:
The production technique of a kind of Al-20Cr master alloy; it is characterized in that: specific as follows: in main frequency furnace or crucible oven; when adopting Al99.70 remelting aluminium ingot to be warming up to 850��950 DEG C; it is the hafnium metal powfer of 0.5-1mm by size, and adds 1% insulating covering agent accounting for Al99.70 remelting aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt and violent stirring; stir 5��10 minutes, elimination to be precipitated, it is cast into magnificent husband's ingot that chromium content is 18-22%.
The invention has the advantages that: use remelting aluminium ingot, chromium metal to be raw material, adopt the founding improved, produce Al-20Cr master alloy, the alloying element content of traditional aluminium chromium master alloy can be brought up to 18-22% from 3-5%, facilitate cast aluminium alloy, the composition adjustment of the user of wrought aluminium alloy when using, be conducive to quality control and the cost control of user.
Embodiment
The specific embodiment of the invention is described in detail in detail:
The production technique of a kind of Al-20Cr master alloy; specific as follows: in main frequency furnace or crucible oven; when adopting Al99.70 remelting aluminium ingot to be warming up to 850��950 DEG C; it is the hafnium metal powfer of 0.5-1mm by size, and adds 1% insulating covering agent accounting for Al99.70 remelting aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt and violent stirring; stir 5��10 minutes, elimination to be precipitated, it is cast into magnificent husband's ingot that chromium content is 18-22%.
Embodiment 1:
In 500kg main frequency furnace or crucible oven; add 350kgAl99.70 remelting aluminium ingot and it is warming up to 850��950 DEG C; by the 70kg hafnium metal powfer that size is 0.5-1mm; under the protection of the ternary insulating covering agent of account for Al99.70 remelting quality of ingot aluminum 1%; add melt and violent stirring in batches; stir 5��10 minutes, elimination to be precipitated, it is cast into magnificent husband's ingot that chromium content is 18-22%.
Claims (1)
1. the production technique of an Al-20Cr master alloy; it is characterized in that: specific as follows: in main frequency furnace or crucible oven; when adopting Al99.70 remelting aluminium ingot to be warming up to 850��950 DEG C; it is the hafnium metal powfer of 0.5-1mm by size, and adds 1% insulating covering agent accounting for Al99.70 remelting aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt and violent stirring in batches; stir 5��10 minutes, elimination to be precipitated, it is cast into magnificent husband's ingot that chromium content is 18-22%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311732.2A CN104046818B (en) | 2014-07-02 | 2014-07-02 | The production technique of a kind of Al-20Cr master alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311732.2A CN104046818B (en) | 2014-07-02 | 2014-07-02 | The production technique of a kind of Al-20Cr master alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104046818A CN104046818A (en) | 2014-09-17 |
| CN104046818B true CN104046818B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410311732.2A Expired - Fee Related CN104046818B (en) | 2014-07-02 | 2014-07-02 | The production technique of a kind of Al-20Cr master alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN104046818B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805333A (en) * | 2015-04-22 | 2015-07-29 | 铜山县超特有色金属添加剂厂 | Aluminium-chromium intermediate alloy AlCr20 and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514417A (en) * | 2009-01-09 | 2009-08-26 | 毕祥玉 | Aluminum chromium intermediate alloy and preparation method thereof |
| CN101775526A (en) * | 2010-03-05 | 2010-07-14 | 武汉泛洲中越合金有限公司 | AL-Cr binary intermediate alloy and preparation method thereof |
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2014
- 2014-07-02 CN CN201410311732.2A patent/CN104046818B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514417A (en) * | 2009-01-09 | 2009-08-26 | 毕祥玉 | Aluminum chromium intermediate alloy and preparation method thereof |
| CN101775526A (en) * | 2010-03-05 | 2010-07-14 | 武汉泛洲中越合金有限公司 | AL-Cr binary intermediate alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 铝-铬合金的研制;舒泉清;《有色矿冶》;19911231(第5期);第26-31页 * |
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| CN104046818A (en) | 2014-09-17 |
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Granted publication date: 20160608 Termination date: 20170702 |