CN103131881A - Aluminium alloy material containing iron complex purification and preparation method thereof - Google Patents
Aluminium alloy material containing iron complex purification and preparation method thereof Download PDFInfo
- Publication number
- CN103131881A CN103131881A CN 201110385898 CN201110385898A CN103131881A CN 103131881 A CN103131881 A CN 103131881A CN 201110385898 CN201110385898 CN 201110385898 CN 201110385898 A CN201110385898 A CN 201110385898A CN 103131881 A CN103131881 A CN 103131881A
- Authority
- CN
- China
- Prior art keywords
- iron complex
- melt
- alloy
- scavenging agent
- aluminium
- 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.)
- Pending
Links
Abstract
The invention discloses an aluminium alloy material containing iron complex purification. By mass percent, the component of the alloy is that Cu is less than or equals to 0.001%, Si is smaller than or equals to0.03% and Fe is smaller than or equals to 0.03%. The remaining are Al and unavoidable microscale impurities. The content of the impurities is smaller than or equals to 0.005%. A refining agent containing the manganese complex is 1ppm-0.05% of furnace material gross quantity. The air hole problem caused by caused by the fact that gas content is high in the aluminium alloy casting process is solved. The problem that a cleaning agent is added by a middle alloy under the normal condition is solved.
Description
Technical field
The present invention relates to aluminum alloy materials and preparation thereof, relate in particular to a kind of to contain iron complex as aluminum alloy materials and the preparation thereof of scavenging agent.
Background technology
In the aluminum alloy melt casting process, the aluminium casting aluminium alloy easily absorbs gas, is the main characteristic of cast aluminium alloy.The contained humidities such as the component of liquid aluminium and aluminium alloy and furnace charge, organic compound combustion product and casting mold react and the hydrogen that produces by due to the aluminium liquid-absorbent.The molten aluminium alloy temperature is higher, and the hydrogen of absorption is also more; In the time of 700 ℃, in every 100g aluminium, the solubleness of hydrogen is 0.5～0.9, and when temperature was elevated to 850 ℃, the solubleness of hydrogen increased by 2～3 times.When alkali metal containing impurity, the solubleness of hydrogen in aluminium liquid significantly increases.Cast aluminium alloy is air-breathing during except melting, also can produce air-breathingly when pouring into casting mold, the liquid metal that enters in casting mold descends with temperature, the solubleness of gas descends, separate out unnecessary gas, some gas that can not escape is stayed and is formed pore in foundry goods, and Here it is " pin hole " that usually claim.In casting aluminium alloy liquid, hydrogen content is higher, and the pin hole that produces in foundry goods is also more.In aluminium casting, pin hole has not only reduced resistance to air loss, the solidity to corrosion of foundry goods, has also reduced the mechanical property of alloy.Master alloy at present commonly used adds the mode of aluminium liquid to eliminate the gas content in aluminium liquid, reach the purpose of aluminium liquid gas sweetening, but master alloy is difficult for preparation, and general master alloy fusing point is higher, can not dissolve fully in aluminium liquid, increased the impurity of aluminium liquid, the bad control of the add-on of master alloy.
Summary of the invention
Technical problem to be solved by this invention:
Provide a kind of to contain aluminum alloy materials that iron complex purifies and preparation method thereof, to solve in its aluminium alloy casting process, because degasification under the high pore problem that causes of aluminium liquid gas content and regular situation adds the problem that master alloy brings as scavenging agent.
Technical scheme of the present invention:
A kind of aluminum alloy materials that purifies to contain iron complex, by weight percentage, this alloying constituent is Cu≤0.01%, Si≤0.03%, Fe≤0.0 3%, all the other are Al and inevitable trace impurity, and impurity content≤0.005%, contain the 1ppm that the iron complex scavenging agent is the furnace charge total amount～0.05%.
Containing iron complex is Fe3 (CO) 12.
Iron complex scavenging agent molecular crystal state of aggregation granularity is 20～300 orders.
Preparation method with the aluminum alloy materials that contains the iron complex refinement comprises following steps:
Step 1: in above-mentioned element ratio scope, a selected group element and contain iron complex scavenging agent ratio, then the aluminium alloy total amount of preparation are as required extrapolated the quality of every kind of required elemental metals, establishment alloy production allocation sheet, and get the raw materials ready by allocation sheet choosing foot;
Step 2: add aluminium ingot or molten aluminum liquid in smelting furnace, heating makes it to melt fully and insulation under 700～800 ℃; Melting process is completed in enclosed environment;
Step 3: first add the selected alloying element of step 1 by formula rate again, make it dissolve fully and melt, mixed melt is stirred;
Step 4: then above-mentioned alloy melt is carried out furnace refining; Add refining agent in alloy melt, and stir, the melt refining operates in enclosed environment;
Step 5: after the refining slagging-off, with protective gas, melt is carried out the degasification operation, the iron complex scavenging agent is joined in molten aluminium alloy with protective gas in the fluidization mode; Stir simultaneously, scavenging agent and alloy melt are fully reacted; Scavenging agent adds complete, continues to pass into protective gas complete to the scavenging agent reaction.
Step 6: standing, temperature adjustment to 700～800 ℃, kept 5 to 10 minutes at this temperature, aluminium alloy is toppled over come out of the stove, enter subsequent processing.
Beneficial effect of the present invention:
Title complex Fe as scavenging agent
3(CO)
12Fusing point is 140 ℃, can decompose fully in casting alloy aluminium liquid, decomposite Fe element and CO-free radical, traditional Fe is as impurity element in casting alloy commonly used, the solubleness of Fe in Al is minimum, Fe is than the first crystallization of α (Al) sosoloid of rich Al, with needle-like or sheet fragility β (Al in the settable liquid process
9Si
2Fe
2) equate that the primary crystal compound form exists.Due to thick needle-like or sheet β (Al
9Si
2Fe
2) be the leading formation phase in the metal liquid process of setting mutually; hindered liquid, metal flows Feeding channel; can cause the loose increase of heat energy-saving position; but the Fe element that decomposites in the present invention; because adding by powder mode and protective gas of scavenging agent adds simultaneously; therefore can be diffused into equably in molten aluminium rapidly; the cause that the electronegativity of atomic state and specific surface area are large; Fe is embedded in the lattice of aluminium element equably, and the Fe of atomic state can break needle-like or sheet fragility β (Al that the impurity iron in the script melt forms
9Si
2Fe
2) phase, make the metallic bond fracture between Al-Si-Fe, thereby play the effect of crystal grain thinning.
Title complex Fe
3(CO)
12Decompose the CO-free radical that generates in aluminium liquid, can absorb and remove the detrimental impurity such as H and O element in melt, reduce the gaseous impurities content in aluminium liquid.
The Fe that the present invention adopts
3(CO)
12Title complex can decompose in aluminium liquid fully, plays sufficient refinement and cleaning action.Solved in its aluminium alloy casting process, the pore problem that causes because gas content is high, and under regular situation, scavenging agent adds the problem of bringing with master alloy.
Embodiment
Step 1: the selected every element of according to the form below and material formula, and by the alloy total amount 1000kg for preparing, calculate the weight of every kind of required material.
And get the raw materials ready by allocation sheet choosing foot;
Step 2: add aluminium ingot or molten aluminum liquid in smelting furnace, heating makes it to melt fully and insulation under 700～800 ℃; Melting process is completed in enclosed environment;
Step 3: first add the selected alloying element of step 1 by formula rate again, make it dissolve fully and melt, mixed melt is stirred;
Step 4: then above-mentioned alloy melt is carried out furnace refining; Add refining agent in alloy melt, and stir, the melt refining operates in enclosed environment;
Step 5: after the refining slagging-off, with protective gas, melt is carried out the degasification operation, the iron complex scavenging agent is joined in alloy melt with protective gas in the fluidization mode; Stir simultaneously, scavenging agent and alloy melt are fully reacted; Scavenging agent adds complete, continues to pass into protective gas complete to the scavenging agent reaction.
Step 6: standing, temperature adjustment to 700～800 ℃, kept 5 to 10 minutes at this temperature, aluminium alloy is toppled over come out of the stove, enter subsequent processing.
Actual varying in weight of allocating into, all the other steps of each embodiment are identical in step 1 for each embodiment.
Claims (4)
1. aluminum alloy materials that purifies to contain iron complex, it is characterized in that: by weight percentage, this alloying constituent is Cu≤0.01%, Si≤0.03%, Fe≤0.0 3%, all the other are Al and inevitable trace impurity, and impurity content≤0.005%, contain the 1ppm that the iron complex scavenging agent is the furnace charge total amount～0.05%.
2. according to claim 1 to contain the aluminum alloy materials of iron complex purification, it is characterized in that: containing iron complex is Fe
3(CO)
12
3. according to claim 1 to contain the aluminum alloy materials of iron complex purification, it is characterized in that: the molecular crystal state of aggregation granularity of iron complex scavenging agent is 20～300 orders.
4. the preparation method with the aluminum alloy materials that contains the iron complex refinement as claimed in claim 1, is characterized in that: comprise the steps:
Step 1: in above-mentioned element ratio scope, a selected group element and contain iron complex scavenging agent ratio, then the aluminium alloy total amount of preparation are as required extrapolated the quality of every kind of required elemental metals, establishment alloy production allocation sheet, and get the raw materials ready by allocation sheet choosing foot;
Step 2: add aluminium ingot or molten aluminum liquid in smelting furnace, heating makes it to melt fully and insulation under 700～800 ℃; Melting process is completed in enclosed environment;
Step 3: first add the selected alloying element of step 1 by formula rate again, make it dissolve fully and melt, mixed melt is stirred;
Step 4: then above-mentioned alloy melt is carried out furnace refining; Add refining agent in alloy melt, and stir, the melt refining operates in enclosed environment;
Step 5: after the refining slagging-off, with protective gas, melt is carried out the degasification operation, the iron complex scavenging agent is joined in molten aluminium alloy with protective gas in the fluidization mode; Stir simultaneously, scavenging agent and alloy melt are fully reacted; Scavenging agent adds complete, continues to pass into protective gas complete to the scavenging agent reaction;
Step 6: standing, temperature adjustment to 700～800 ℃, kept 5 to 10 minutes at this temperature, aluminium alloy is toppled over come out of the stove, enter subsequent processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385898 CN103131881A (en) | 2011-11-29 | 2011-11-29 | Aluminium alloy material containing iron complex purification and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385898 CN103131881A (en) | 2011-11-29 | 2011-11-29 | Aluminium alloy material containing iron complex purification and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103131881A true CN103131881A (en) | 2013-06-05 |
Family
ID=48492329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110385898 Pending CN103131881A (en) | 2011-11-29 | 2011-11-29 | Aluminium alloy material containing iron complex purification and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103131881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475882A (en) * | 2017-04-05 | 2019-11-19 | 诺维尔里斯公司 | With high-intensitive and high formability anodic oxidation quality 5XXX aluminium alloy and preparation method |
-
2011
- 2011-11-29 CN CN 201110385898 patent/CN103131881A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475882A (en) * | 2017-04-05 | 2019-11-19 | 诺维尔里斯公司 | With high-intensitive and high formability anodic oxidation quality 5XXX aluminium alloy and preparation method |
| US11821061B2 (en) | 2017-04-05 | 2023-11-21 | Novelis Inc. | Anodized quality 5XXX aluminum alloys with high strength and high formability and methods of making the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103060637B (en) | Metallic hydrogen compound modified high-performance aluminum alloy material and preparation method thereof | |
| CN102605193B (en) | Refining agent for copper and copper alloy smelting | |
| CN102605205B (en) | Brass alloy smelting method | |
| CN103060645A (en) | High-performance aluminum alloy material for manganese carbonyl complex deterioration and preparation method of material | |
| CN104152731A (en) | Process for melting cast aluminum alloy | |
| CN110318001B (en) | High-carbon steel for diamond wire bus and smelting method thereof | |
| CN103131881A (en) | Aluminium alloy material containing iron complex purification and preparation method thereof | |
| CN101798650B (en) | Low-gas content metal manganese ingot and preparation method thereof | |
| CN110241342A (en) | A kind of high Mn content aluminium manganese intermediate alloy and preparation method thereof | |
| CN103131901A (en) | Aluminum alloy material containing degenerative cobalt complexes and preparation method thereof | |
| CN103131911A (en) | High-strength corrosion-resisting cladding material | |
| CN103060643A (en) | Amino-complex-treated high-strength aluminum alloy material and preparation method thereof | |
| CN103131917B (en) | A kind of carbonyl compound W (CO) 6rotten high performance aluminium materials and preparation method thereof | |
| CN103060628B (en) | A kind of Al-Si aluminum alloy materials rotten containing P title complex and preparation method thereof | |
| CN101906506A (en) | Steel-covered aluminum-calcium alloy for steelmaking and preparation method thereof | |
| CN101487074B (en) | Calcium processing core cabling wire for producing stainless steel | |
| CN113458351A (en) | MnO-containing high-aluminum steel casting powder | |
| CN102965472B (en) | Cast steel purifying agent and production method thereof | |
| CN103060627B (en) | Ferrocene-enhanced high-performance aluminum alloy material and preparation method thereof | |
| CN102477497A (en) | Non-lead-bismuth easily-cut antimony brass alloy | |
| CN103060641B (en) | Carbonyl compound Ni(CO)4 modified high-performance aluminum alloy material and preparation method thereof | |
| CN103131920B (en) | A kind of carbonyl compound V (CO) 6rotten high performance aluminium materials and preparation method thereof | |
| CN103060648A (en) | Titanium boron compound modified high-performance aluminum alloy material and preparation method thereof | |
| CN103060646B (en) | Iron carbonyl complex modified high-performance aluminum alloy material and preparation method thereof | |
| CN103131900A (en) | Aluminium alloy material containing manganese complex refining and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |