CN106048272B - A kind of preparation method of al-mg-si scandium alloy silk - Google Patents
A kind of preparation method of al-mg-si scandium alloy silk Download PDFInfo
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- CN106048272B CN106048272B CN201610490622.6A CN201610490622A CN106048272B CN 106048272 B CN106048272 B CN 106048272B CN 201610490622 A CN201610490622 A CN 201610490622A CN 106048272 B CN106048272 B CN 106048272B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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Abstract
The invention belongs to a kind of preparation method of al-mg-si scandium alloy silk, silicon, scandium and magnesia mixture is 1. added into aluminium liquid, stir to obtain aluminium alloy；2. refining agent is blown into refining treatment in aluminium alloy；3. aluminium alloy is stood；4. adding Al-Ti-B alloy silk in the aluminium alloy 3. obtained to step carries out online crystal grain refinement processing, each chemical component weight percentage in aluminium alloy is controlled to be：Si 0.3~0.65%, Fe 0.1~0.3%, Mg 0.45~0.9%, Ce 0.15~0.3%, Ti 0.02~0.08%, Sc 0.15 ~ 0.3%, surplus Al；5. by step, 4. gained aluminium alloy is cast, and is entered back into three-high mill and is carried out continuous rolling, is rolled into a diameter of 9.4 ~ 9.6mm aluminium bar；6. aluminium bar is made into aluminum-alloy wire of the diameter in 0.15 0.4mm through cold drawing, artificial aging processing is carried out.
Description
Technical field
The present invention relates to aluminum alloy materials technical field, specifically a kind of preparation method of al-mg-si scandium alloy silk.
Background technology
The aluminum-alloy wire properties of product of current domestic special cables producer require as follows：Material does not limit, and string diameter 0.15mm ~
0.4mm, tensile strength are not less than 280MPa, and elongation after fracture is not less than 10%, conductance（%IACS）Not less than 52%.Al-mg-si
Alloy is that 6 that we commonly use are wrought aluminium alloy, has preferable thermal deformation behavior, heat-treatable strengthened, has medium tension
Intensity and certain extensibility.Thus to be used for extrusion forming material, its cold drawing performance is also fine more.Given birth to using Al-Mg-Si alloy
This product is produced, as a result elongation after fracture can not meet to require, and the material composition life that the existing wrought aluminium alloy trade mark is provided
The product of output can not meet three above index simultaneously.
The content of the invention
The object of the invention, which is that, overcomes above-mentioned deficiency, and one kind is obtained by adding rare metal scandium to aldray
Al-mg-si scandium alloy silk, while meet three tensile strength, elongation and conductance performance index requests.
To achieve the above object, the technical solution adopted by the present invention is：A kind of preparation method of al-mg-si scandium alloy silk, bag
Include following steps：1. being to add silicea, scandium agent and magnesia mixture in the aluminium liquid in 730 ~ 755 DEG C to temperature, stir to obtain aluminium alloy；
2. refining agent is blown into refining treatment in aluminium alloy with nitrogen, the addition of refining agent is the 0.2% of aluminium alloy weight, nitrogen
Pressure is 0.05~0.2MPa；3. aluminium alloy is stood 30 ~ 60 minutes；4. aluminium titanium boron is added in the aluminium alloy 3. obtained to step
B alloy wire carries out online crystal grain refinement processing, controls each chemical component weight percentage in aluminium alloy to be：Si 0.3~0.65%,
Fe 0.1~0.3%, Mg 0.45~0.9%, Ce 0.15~0.3%, Ti 0.02~0.08%, Sc 0.15 ~ 0.3%, surplus are
Al；The temperature that aluminium alloy is controlled in online crystal grain refinement processing procedure is 650~730 DEG C；Passed through again after the processing of line crystal grain refinement
Online degasification and filter cleaner；5. by step, 4. gained aluminium alloy is cast, and is entered back into three-high mill and is carried out continuous rolling, rolls
A diameter of 9.4 ~ 9.6mm aluminium bar is made；6. aluminum-alloy wire of the diameter in 0.15-0.4mm is made through cold drawing in aluminium bar,
Soaking time 6-15 hours carry out artificial aging processing at a temperature of 140-200 DEG C.
Preferably, 5. at 690~730 DEG C, casting rate controls in 46~60mm/ the step for middle cast temperature control
sec；Enter to roll temperature control at 460~550 DEG C.
Preferably, the step 1. in silicea, scandium agent and magnesia mixture be respectively aluminium silicon intermediate alloy, scandium bearing master alloy and
Magnesium ingot.
Preferably：Siliceous 12-20wt% in aluminium silicon intermediate alloy, remaining is aluminium；Scandium bearing master alloy 1.5- containing scandium
2.2wt%, remaining is aluminium；The purity of magnesium ingot is more than 99.9%.
Preferably, the step 2. in refining agent be KCl, MgCl2And CaF2Mixture.
Preferably, the percentage by weight of each component of the refining agent is as follows：KCl 40%、MgCl2 20%、CaF2 40%。
The beneficial effects of the invention are as follows：Aluminium alloy monofilament produced by the present invention, than the common aldray list for being not added with scandium
Silk tensile strength improves 10-20%, and elongation after fracture improves 25-30%, and conductance is declined slightly, but can meet tensile strength,
Elongation and conductivity requirements, and there is good drawing performance, batch production can be achieved.
Embodiment
With reference to specific embodiment, the invention will be further described, the illustrative examples and explanation invented herein
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1
A kind of preparation method of al-mg-si scandium alloy silk, comprises the following steps：1. it is in the aluminium liquid in 745 DEG C to temperature
Silicon, scandium and magnesia mixture are added, stirring obtains aluminium alloy in 25 minutes；2. refining agent is blown into refining treatment in aluminium alloy with nitrogen, refine
The addition of agent is the 0.2% of aluminium alloy weight, and the pressure of nitrogen is 0.06MPa；3. aluminium alloy is stood 35 minutes；4. to step
Al-Ti-B alloy silk is added in the rapid aluminium alloy 3. obtained and carries out online crystal grain refinement processing, controls each chemical composition in aluminium alloy
Percentage by weight is：Si 0.33%, Fe 0.27%, Mg 0.53%, Ce 0.26%, Ti 0.024%, Sc 0.2%, surplus Al；
The temperature that aluminium alloy is controlled in online crystal grain refinement processing procedure is 708 DEG C；Again through online degasification after the processing of line crystal grain refinement
And filter cleaner；5. by step, 4. gained aluminium alloy is cast, and is entered back into three-high mill and is carried out continuous rolling, is rolled into diameter
For 9.5mm aluminium bar；6. aluminum-alloy wire of the diameter in 0.28mm is made through cold drawing in aluminium bar, when being incubated at a temperature of 152 DEG C
Between 8 hours carry out artificial aging processing.
The step 1. in silicea, scandium agent and magnesia mixture be respectively aluminium silicon intermediate alloy（Siliceous 15wt%）, close among aluminium scandium
Gold（2wt% containing scandium）And magnesium ingot（Purity 99.9%）.The percentage by weight of each component of the refining agent is as follows：KCl 40%、
MgCl2 20%、CaF2 40%。
Preferably, 5. at 708 DEG C, casting rate controls in 49mm/sec the step for middle cast temperature control；Enter to roll temperature
Degree control is at 513 DEG C.
The performance comparison such as table 1 of al-mg-si scandium alloy silk manufactured in the present embodiment and common aldray monofilament：
。
Embodiment 2
A kind of preparation method of al-mg-si scandium alloy silk, comprises the following steps：1. it is in the aluminium liquid in 755 DEG C to temperature
Silicon, scandium and magnesia mixture are added, stirring obtains aluminium alloy in 20 minutes；2. refining agent is blown into refining treatment in aluminium alloy with nitrogen, refine
The addition of agent is the 0.2% of aluminium alloy weight, and the pressure of nitrogen is 0.1MPa；3. aluminium alloy is stood 31 minutes；4. to step
3. Al-Ti-B alloy silk is added in obtained aluminium alloy carries out online crystal grain refinement processing, each chemical composition weight in aluminium alloy is controlled
Measuring percentage is：Si 0.48%, Fe 0.22%, Mg 0.65%, Ce 0.21%, Ti 0.026%, Sc 0.3%, surplus Al；
The temperature that aluminium alloy is controlled in line crystal grain refinement processing procedure is 650~730 DEG C；Again through removing online after the processing of line crystal grain refinement
Gas and filter cleaner；5. by step, 4. gained aluminium alloy is cast, and is entered back into three-high mill and is carried out continuous rolling, is rolled into straight
Footpath is 9.5mm aluminium bar；6. aluminium bar is made into aluminum-alloy wire of the diameter in 0.32mm through cold drawing, it is incubated at a temperature of 175 DEG C
6 hours time carried out artificial aging processing.
The step 1. in silicea, scandium agent and magnesia mixture be respectively aluminium silicon intermediate alloy（Siliceous 12wt%）, close among aluminium scandium
Gold（1.5wt% containing scandium）And magnesium ingot（Purity 99.9%）.The percentage by weight of each component of the refining agent is as follows：KCl 40%、
MgCl2 20%、CaF2 40%。
Preferably, 5. at 703 DEG C, casting rate controls in 49mm/sec the step for middle cast temperature control；Enter to roll temperature
Degree control is at 509 DEG C.
The performance comparison such as table 2 of al-mg-si scandium alloy silk manufactured in the present embodiment and common aldray monofilament：
。
Embodiment 3
A kind of preparation method of al-mg-si scandium alloy silk, comprises the following steps：1. it is in the aluminium liquid in 747 DEG C to temperature
Silicon, scandium and magnesia mixture are added, stirring obtains aluminium alloy in 18 minutes；2. refining agent is blown into refining treatment in aluminium alloy with nitrogen, refine
The addition of agent is the 0.2% of aluminium alloy weight, and the pressure of nitrogen is 0.2MPa；3. aluminium alloy is stood 35 minutes；4. to step
3. Al-Ti-B alloy silk is added in obtained aluminium alloy carries out online crystal grain refinement processing, each chemical composition weight in aluminium alloy is controlled
Measuring percentage is：Si 0.52%, Fe 0.16%, Mg 0.68%, Ce 0.17%, Ti 0.036%, Sc 0.15%, surplus Al；
The temperature that aluminium alloy is controlled in line crystal grain refinement processing procedure is 697 DEG C；After the processing of line crystal grain refinement again through online degasification and
Filter cleaner；5. by step, 4. gained aluminium alloy is cast, and is entered back into three-high mill and is carried out continuous rolling, is rolled into a diameter of
9.5mm aluminium bar；6. aluminum-alloy wire of the diameter in 0.21mm, the soaking time at a temperature of 152 DEG C is made through cold drawing in aluminium bar
6-15 hours carry out artificial aging processing.
The step 1. in silicea, scandium agent and magnesia mixture be respectively aluminium silicon intermediate alloy（Siliceous 20wt%）, close among aluminium scandium
Gold（2.2wt% containing scandium）And magnesium ingot（Purity 99.9%）.The percentage by weight of each component of the refining agent is as follows：KCl 40%、
MgCl2 20%、CaF2 40%。
Preferably, 5. at 697 DEG C, casting rate controls in 46/sec the step for middle cast temperature control；Enter to roll temperature
Control is at 493 DEG C.
The performance comparison such as table 3 of al-mg-si scandium alloy silk manufactured in the present embodiment and common aldray monofilament：
。
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (6)
1. a kind of preparation method of al-mg-si scandium alloy silk, it is characterised in that comprise the following steps：1. it is 730 ~ 755 to temperature
Silicea, scandium agent and magnesia mixture are added in aluminium liquid in DEG C, stir to obtain aluminium alloy；2. refining agent is blown into aluminium alloy with nitrogen
Refining treatment, the addition of refining agent are the 0.15 ~ 0.3% of aluminium alloy weight；3. aluminium alloy is stood 30 ~ 60 minutes；4. to step
Al-Ti-B alloy silk is added in the rapid aluminium alloy 3. obtained and carries out online crystal grain refinement processing, controls each chemical composition in aluminium alloy
Percentage by weight is：Si 0.3~0.65%, Fe 0.1~0.3%, Mg 0.45~0.9%, Ce 0.15~0.3%, Ti 0.02~
0.08%th, Sc 0.15 ~ 0.3%, surplus Al；The temperature that aluminium alloy is controlled in online crystal grain refinement processing procedure is 650~730
℃；Again through online degasification and filter cleaner after the processing of line crystal grain refinement；5. by step, 4. gained aluminium alloy is cast, then is entered
Enter three-high mill and carry out continuous rolling, be rolled into a diameter of 9.4 ~ 9.6mm aluminium bar；6. aluminium bar is made into diameter through cold drawing to exist
0.15-0.4mm aluminum-alloy wire, the soaking time 6-15 hours progress artificial aging processing at a temperature of 140-200 DEG C.
2. the preparation method of al-mg-si scandium alloy silk as claimed in claim 1, it is characterised in that：The step 5. middle cast temperature
At 690~730 DEG C, casting rate is controlled in 46~60mm/sec for control；Enter to roll temperature control at 460~550 DEG C.
3. the preparation method of al-mg-si scandium alloy silk as claimed in claim 1, it is characterised in that：The step 1. in silicea,
Scandium agent and magnesia mixture are respectively aluminium silicon intermediate alloy, scandium bearing master alloy and magnesium ingot.
4. the preparation method of al-mg-si scandium alloy silk as claimed in claim 3, it is characterised in that：It is siliceous in aluminium silicon intermediate alloy
12-20wt%, remaining is aluminium；Scandium bearing master alloy 1.5-2.2wt% containing scandium, remaining is aluminium；The purity of magnesium ingot is more than 99.9%.
5. the preparation method of al-mg-si scandium alloy silk as claimed in claim 1, it is characterised in that：The step 2. in refining agent
For KCl, MgCl2And CaF2Mixture.
6. the preparation method of al-mg-si scandium alloy silk as claimed in claim 5, it is characterised in that：The each component of the refining agent
Percentage by weight is as follows：KCl 40%、MgCl2 20%、CaF2 40%。
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| CN110257653A (en) * | 2019-07-03 | 2019-09-20 | 中国恩菲工程技术有限公司 | Aluminium silicon scandium zirconium alloy wire, preparation method and application |
| CN110257654B (en) * | 2019-07-03 | 2021-05-07 | 中国恩菲工程技术有限公司 | Aluminum-magnesium-silicon-scandium-zirconium alloy wire, and preparation method and application thereof |
| CN115401293B (en) * | 2022-09-14 | 2024-07-12 | 中南大学 | Application of aluminum-magnesium-silicon extrusion plate capable of performing MIG welding on dissimilar aluminum alloy |
| CN115612899B (en) * | 2022-09-28 | 2023-07-18 | 国网河南省电力公司电力科学研究院 | High-conductivity and fatigue-resistant aluminum alloy conductor material and preparation method thereof |
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| AUPO084796A0 (en) * | 1996-07-04 | 1996-07-25 | Comalco Aluminium Limited | 6xxx series aluminium alloy |
| CN102021442B (en) * | 2010-09-21 | 2012-08-29 | 安徽亚南电缆厂 | Ultra-fine aluminum alloy wire and preparation method thereof |
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| CN103993209B (en) * | 2014-05-29 | 2016-02-24 | 合肥工业大学 | The Al-Mg-Si-Cu Alloy And Preparation Method of rare earth Sc microalloying |
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Address after: Five in Xiuwu County, Henan province 454350 source of Jiaozuo Xiang Mo Tai Ying Cun Patentee after: Henan new material Limited by Share Ltd Address before: Five in Xiuwu County, Henan province 454350 source of Jiaozuo Xiang Mo Tai Ying Cun Patentee before: Jiaozuo Shenghao Aluminum Industry Co., Ltd. |
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Denomination of invention: Preparation method of aluminum, magnesium, silicon and scandium alloy wire Effective date of registration: 20181123 Granted publication date: 20171219 Pledgee: Jiaozuo Branch of Luoyang Bank Co., Ltd. Pledgor: Henan new material Limited by Share Ltd Registration number: 2018990001107 |
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