CN104046818A - Production process of Al-20Cr intermediate alloy - Google Patents
Production process of Al-20Cr intermediate alloy Download PDFInfo
- Publication number
- CN104046818A CN104046818A CN201410311732.2A CN201410311732A CN104046818A CN 104046818 A CN104046818 A CN 104046818A CN 201410311732 A CN201410311732 A CN 201410311732A CN 104046818 A CN104046818 A CN 104046818A
- Authority
- CN
- China
- Prior art keywords
- alloy
- ingot
- remelting
- chromium
- covering agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 20
- 239000000956 alloy Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 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
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims description 19
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 5
- 239000002184 metal 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
- 238000005266 casting Methods 0.000 abstract 2
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 235000012773 waffles Nutrition 0.000 abstract 1
- 238000005275 alloying Methods 0.000 description 4
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a production process of an Al-20Cr intermediate alloy. The process comprises the following specific steps: in a line frequency furnace or a crucible furnace, heating to 850-950 DEG C by adopting an Al99.70 aluminum ingot for remelting and adding metal chromium powder with the grain size of 0.5-1mm and a covering agent at the same time; in the presence of a universal ternary covering agent, adding melts in batches and strongly stirring without precipitates; casting to form a waffle ingot with the chromium content of 18-22%. By using the aluminum ingot for remelting and metal chromium as raw materials and adopting an improved casting process, the Al-20Cr intermediate alloy is prepared. The content of alloy elements in the conventional aluminum-chromium intermediate alloy can be improved from 3-5% to 18-22%, so that a user using the cast aluminum alloy and the deformed aluminum alloy can conveniently adjust components, thereby facilitating the quality control and cost control of the user.
Description
Technical field
The present invention relates to aluminium alloy manufacture field, refer more particularly to a kind of production technique of Al-20Cr master alloy.
Background technology
Along with the development of aluminium processing technology, more and more higher to the requirement of the constituent content of aluminium intermediate alloy, kind.
Aluminium intermediate alloy is for adjusting a kind of traditional product of molten aluminium composition, can be produced by aluminium and other metallic element scorification, and part kind also can the method such as produce by the salt reduction of aluminium and containing metal element.More traditional scorification is that the higher metallic element of some fusing points is added in the aluminium liquid of melting and is mixed with master alloy, the temperature of fusion of these master alloys significantly reduces, thereby the metallic element that some temperature of fusion are higher can be joined in the aluminium liquid of 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; Be easy to fragmentation; Be convenient to add; Component content is high; Be 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 characteristic of some high-melting-point elements particularly, and the condition of factory's technical equipment, for a long time, the alloying element content of part aluminium intermediate alloy is not high, if aluminium chromium hardener is only 3-5%.The chromium content that how to improve aluminium chromium hardener is all a technical barrier for a long time.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point of the prior art and provide a kind of production technique simple, alloy mass is high, the production technique of the Al-20Cr master alloy that cost is low.
The present invention realizes in the following way:
A kind of production technique of Al-20Cr master alloy; it is characterized in that: specific as follows: in main frequency furnace or crucible oven; while adopting Al99.70 remelting to be warming up to 850～950 ℃ with aluminium ingot; the hafnium metal powfer that is 0.5-1mm by size, and add 1% insulating covering agent that accounts for Al99.70 remelting use aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt violent stirring; stir 5～10 minutes, treat precipitation elimination, being cast into chromium content is magnificent husband's ingot of 18-22%.
The invention has the advantages that: using aluminium ingot, chromium metal for remelting is raw material, adopt improved founding, produce Al-20Cr master alloy, the alloying element content of traditional aluminium chromium hardener can be brought up to 18-22% from 3-5%, composition adjustment while facilitating the user of cast aluminium alloy, wrought aluminium alloy to use, is conducive to user's quality control and cost control.
Embodiment
The specific embodiment of the invention is described in detail in detail:
A kind of production technique of Al-20Cr master alloy; specific as follows: in main frequency furnace or crucible oven; while adopting Al99.70 remelting to be warming up to 850～950 ℃ with aluminium ingot; the hafnium metal powfer that is 0.5-1mm by size, and add 1% insulating covering agent that accounts for Al99.70 remelting use aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt violent stirring; stir 5～10 minutes, treat precipitation elimination, being cast into chromium content is magnificent husband's ingot of 18-22%.
Embodiment 1:
In 500kg main frequency furnace or crucible oven; add 350kgAl99.70 remelting to be warming up to 850～950 ℃ with aluminium ingot; the 70kg hafnium metal powfer that is 0.5-1mm by size; accounting under the protection of Al99.70 remelting with 1% ternary insulating covering agent of quality of ingot aluminum; add melt violent stirring in batches; stir 5～10 minutes, treat precipitation elimination, being cast into chromium content is magnificent husband's ingot of 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; while adopting Al99.70 remelting to be warming up to 850～950 ℃ with aluminium ingot; the hafnium metal powfer that is 0.5-1mm by size, and add 1% insulating covering agent that accounts for Al99.70 remelting use aluminium ingot weight simultaneously, under the protection of general ternary insulating covering agent; add melt violent stirring in batches; stir 5～10 minutes, treat precipitation elimination, being cast into chromium content is magnificent husband's ingot of 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 true CN104046818A (en) | 2014-09-17 |
| CN104046818B CN104046818B (en) | 2016-06-08 |
Family
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Family Applications (1)
| 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 |
|---|---|
| CN (1) | CN104046818B (en) |
Cited By (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 |
-
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 |
|---|
| 舒泉清: "铝-铬合金的研制", 《有色矿冶》 * |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104046818B (en) | 2016-06-08 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20160608 Termination date: 20170702 |