CN115627395A - Industrial 6061D aluminum alloy and preparation method thereof - Google Patents
Industrial 6061D aluminum alloy and preparation method thereof Download PDFInfo
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- CN115627395A CN115627395A CN202211275754.9A CN202211275754A CN115627395A CN 115627395 A CN115627395 A CN 115627395A CN 202211275754 A CN202211275754 A CN 202211275754A CN 115627395 A CN115627395 A CN 115627395A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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Abstract
The application discloses industry section bar 6061D aluminum alloy in aluminum alloy material technical field, the alloy composition includes according to mass percent: si: 0.4-0.8, mg: 0.8-1.2, fe is less than or equal to 0.6, cu:0.15 to 0.25, mn:0.25 to 0.40, cr: less than or equal to 0.1, ti:0.01 to 0.03, zn: less than or equal to 0.5 and the balance of Al. The 6061D aluminum alloy of this application has better machinability and oxidation effect.
Description
Technical Field
The invention relates to the technical field of aluminum alloy, in particular to an industrial section 6061D aluminum alloy and a preparation method thereof.
Background
The 6061 aluminum alloy is a typical deformable heat-treated aluminum alloy, has medium strength, excellent extrusion processing performance, good corrosion resistance, surface treatment performance and weldability, is easy to coat, has good subsequent processability, and is suitable for processing forged products.
In the prior art, the 6061 aluminum alloy comprises the following alloy components in percentage by mass: si:0.4 to 0.8, mg: 0.8-1.2, fe is less than or equal to 0.7, cu:0.15 to 0.40, mn:0.15, cr:0.04 to 0.35, ti:0.15, zn:0.25 and the balance of Al. With the above alloy composition, 6061 aluminum alloy has good weldability, corrosion resistance, etc., but has problems of general machinability and poor oxidation effect. However, for aluminum alloy, the machinability has important significance for processing aluminum alloy sections, otherwise, the abrasion of a cutting tool is aggravated, and built-up edges are easy to form during cutting, so that good performance is difficult to obtain and the aluminum alloy sections are difficult to process; poor oxidation affects the surface treatment of the aluminum alloy. The applicant provides a new 6061D aluminum alloy based on an alloy composition improvement of 6061 aluminum alloy, so as to overcome the problems of general machinability and poor oxidation effect of 6061 aluminum alloy in the prior art.
Disclosure of Invention
The invention aims to provide an industrial section 6061D aluminum alloy and a preparation method thereof, and solves the problems of general machinability and poor oxidation effect of 6061 aluminum alloy in the prior art.
In order to achieve the above problems, the present invention provides the following technical solutions: an industrial section 6061D aluminum alloy comprises the following alloy components in percentage by mass: si: 0.4-0.8, mg: 0.8-1.2, fe is less than or equal to 0.6, cu:0.15 to 0.25, mn:0.25 to 0.40, cr: less than or equal to 0.1, ti:0.01 to 0.03, zn: less than or equal to 0.5 and the balance of Al.
Further, the alloy comprises the following components in percentage by mass: si: 0.65-0.68, mg: 0.85-0.90, fe is less than or equal to 0.5, cu:0.20 to 0.25, mn:0.30 to 0.35, cr: less than or equal to 0.1, ti:0.018 to 0.02, zn: less than or equal to 0.3 and the balance of Al.
Further, the alloy comprises the following components in percentage by mass: si:0.65, mg:0.85, fe is less than or equal to 0.5, cu:0.20, mn:0.30, cr: less than or equal to 0.1, ti:0.018, zn: less than or equal to 0.3 and the balance of Al.
Further, the alloy comprises the following components in percentage by mass: si:0.66, mg:0.87, fe is less than or equal to 0.5, cu:0.23, mn:0.33, cr: less than or equal to 0.1, ti:0.019, zn: less than or equal to 0.3 and the balance of Al.
Further, the alloy comprises the following components in percentage by mass: si:0.68, mg:0.90, fe is less than or equal to 0.5, cu:0.25, mn:0.35, cr: less than or equal to 0.1, ti:0.02, zn: less than or equal to 0.3 and the balance of Al.
A preparation method of an industrial 6061D aluminum alloy section comprises the following steps:
s1, preparing materials: batching according to the alloy components;
s2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
Further, the round cast rod is subjected to air cooling quenching in the smelting process.
Further, the aluminum profile needs to be subjected to surface treatment before oxidation, namely, the surface of the aluminum profile is cleaned by a chemical or physical method and then polished to obtain a mirror surface or a matte (matte) surface.
The working principle and the beneficial effects of the invention are as follows: the application changes the component composition of the 6061 aluminum alloy formula in the prior art, and the 6061D alloy obtained by the application has good machinability and oxidation effect besides weldability, corrosion resistance, extrusion processability, weldability and the like.
Detailed Description
The following is further detailed by way of specific embodiments:
example 1: a preparation method of an industrial 6061D aluminum alloy comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.65, mg:0.85, fe is less than or equal to 0.5, cu:0.20, mn:0.30, cr: less than or equal to 0.1, ti:0.018, zn: less than or equal to 0.3 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
Example 2: a preparation method of an industrial 6061D aluminum alloy comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.66, mg:0.87, fe is less than or equal to 0.5, cu:0.23, mn:0.33, cr: less than or equal to 0.1, ti:0.019, zn: less than or equal to 0.3 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
Example 3: a preparation method of an industrial 6061D aluminum alloy comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.68, mg:0.90, fe is less than or equal to 0.5, cu:0.25, mn:0.35, cr: less than or equal to 0.1, ti:0.02, zn: less than or equal to 0.3 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: surface treatment of extruded aluminum alloy section by anodic oxidation
Comparative example 1: a preparation method of an industrial 6061D aluminum alloy comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.4, mg:0.8, fe is less than or equal to 0.7, cu:0.15, mn:0.15, cr:0.04, ti:0.15, zn:0.25 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
Comparative example 2: a preparation method of an industrial 6061D aluminum alloy section comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.6, mg:1.0Fe is less than or equal to 0.7, cu:0.30, mn:0.15, cr:0.25, ti:0.15, zn:0.25 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
Comparative example 3: a preparation method of an industrial 6061D aluminum alloy section comprises the following steps:
s1, preparing materials: the alloy comprises the following components in percentage by mass: si:0.8, mg:1.2, fe is less than or equal to 0.7, cu:0.40, mn:0.15, cr:0.35, ti:0.15, zn:0.25 and the balance of Al.
S2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
The aluminum alloy sections produced in examples 1 to 3 and comparative examples 1 to 3 were subjected to a cutting experiment,
the test killers were as follows: machine tool: HSM2700 MIKRON, switzerland; milling cutter: mikron Grain, fraisa 5277 (Φ 10mm, two-edge radius end mill, helix angle 30 ° y =15 °, r =1.5 mm); a dynamometer: kistler 9255B three-way piezoelectric dynamometer; a charge amplifier: kistler 5261 multi-channel charge amplifier and corresponding data acquisition and processing systems; a cooling mode: cooling oil mist; analysis software: dynovare, origin7.0, micro soft Excel.
The first step is to verify whether the built-up edge is generated under high-speed cutting. The following results were observed in 3 sets of experiments, respectively, and are shown in Table 1.
TABLE 1
And secondly, verifying whether the built-up edge is generated under the multi-angle cutting of the milling cutter of the machine tool, respectively carrying out 3 groups of experiments, and observing to obtain the following results shown in a table 2.
TABLE 2
The data analysis above proves that this application all does not have the long-pending bits of a broken glass and tumour to produce under the cutting of the multiple angle of machine tool and multiple rotational speed, and the 6061 alloy of prior art all produces long-pending bits of a broken glass tumour, shows that this application 6061D aluminum alloy has better machinability.
It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, which should not be construed as affecting the scope of the invention as embodied in the invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The industrial 6061D aluminum alloy is characterized by comprising the following components in percentage by mass: si: 0.4-0.8, mg: 0.8-1.2, fe is less than or equal to 0.6, cu:0.15 to 0.25, mn:0.25 to 0.40, cr: less than or equal to 0.1, ti:0.01 to 0.03, zn: less than or equal to 0.5 and the balance of Al.
2. The industrial 6061D aluminum alloy of claim 1, wherein the alloy comprises, by mass: si: 0.65-0.68, mg: 0.85-0.90, fe is less than or equal to 0.5, cu:0.20 to 0.25, mn:0.30 to 0.35, cr: less than or equal to 0.1, ti:0.018 to 0.02, zn: less than or equal to 0.3 and the balance of Al.
3. The industrial profile 6061D aluminum alloy as claimed in claim 2, wherein the alloy comprises the following components in percentage by mass: si:0.65, mg:0.85, fe is less than or equal to 0.5, cu:0.20, mn:0.30, cr: less than or equal to 0.1, ti:0.018, zn: less than or equal to 0.3 and the balance of Al.
4. The industrial 6061D aluminum alloy of claim 3, wherein the alloy comprises, by mass: si:0.66, mg:0.87, fe is less than or equal to 0.5, cu:0.23, mn:0.33, cr: less than or equal to 0.1, ti:0.019, zn: less than or equal to 0.3 and the balance of Al.
5. The industrial 6061D aluminum alloy of claim 4, wherein the alloy comprises, by mass: si:0.68, mg:0.90, fe is less than or equal to 0.5, cu:0.25, mn:0.35, cr: less than or equal to 0.1, ti:0.02, zn: less than or equal to 0.3 and the balance of Al.
6. The method for preparing industrial 6061D aluminum alloy according to any one of claims 1 to 5, comprising the steps of:
s1, preparing materials: batching according to the alloy components;
s2, smelting: adding the prepared raw materials into a smelting furnace for melting, effectively removing impurity slag and gas in the melt, and then casting to form a round casting rod;
s3, extruding: extruding the heated round cast rod from the die by using an extruder;
s4, oxidation: and carrying out surface treatment on the extruded aluminum alloy section through anodic oxidation.
7. The industrial 6061D aluminum alloy of claim 6, wherein the round cast rod is further air quenched during the melting.
8. The industrial 6061D aluminum alloy profile as claimed in claim 7, wherein the aluminum profile needs to be subjected to surface treatment before oxidation, namely, the surface of the profile is cleaned by a chemical or physical method and then polished to obtain a mirror surface or a matte (matte) surface.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421087A (en) * | 1989-10-30 | 1995-06-06 | Lanxide Technology Company, Lp | Method of armoring a vehicle with an anti-ballistic material |
| CN101624670A (en) * | 2009-08-05 | 2010-01-13 | 福建省南平铝业有限公司 | High-strength high-elongation ratio aluminum alloy and preparation method thereof |
| CN107326227A (en) * | 2017-08-14 | 2017-11-07 | 山东南山铝业股份有限公司 | Rail transit vehicle body skirtboard aluminium alloy extrusions and its manufacture method |
| CN109988952A (en) * | 2019-05-10 | 2019-07-09 | 贵州正合可来金科技有限责任公司 | A kind of preparation method of aluminum alloy mobile phone shell |
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- 2022-10-18 CN CN202211275754.9A patent/CN115627395A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421087A (en) * | 1989-10-30 | 1995-06-06 | Lanxide Technology Company, Lp | Method of armoring a vehicle with an anti-ballistic material |
| CN101624670A (en) * | 2009-08-05 | 2010-01-13 | 福建省南平铝业有限公司 | High-strength high-elongation ratio aluminum alloy and preparation method thereof |
| CN107326227A (en) * | 2017-08-14 | 2017-11-07 | 山东南山铝业股份有限公司 | Rail transit vehicle body skirtboard aluminium alloy extrusions and its manufacture method |
| CN109988952A (en) * | 2019-05-10 | 2019-07-09 | 贵州正合可来金科技有限责任公司 | A kind of preparation method of aluminum alloy mobile phone shell |
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