CN103484697A - Production technique of high-wear-resistance aluminum alloy section - Google Patents

Production technique of high-wear-resistance aluminum alloy section Download PDF

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Publication number
CN103484697A
CN103484697A CN201310348496.7A CN201310348496A CN103484697A CN 103484697 A CN103484697 A CN 103484697A CN 201310348496 A CN201310348496 A CN 201310348496A CN 103484697 A CN103484697 A CN 103484697A
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Prior art keywords
insulation
warming
cooled
aluminium alloy
alloy extrusions
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CN201310348496.7A
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Chinese (zh)
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徐兴洪
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Anhui Shengda Qianliang Aluminum Co Ltd
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Anhui Shengda Qianliang Aluminum Co Ltd
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Abstract

The invention discloses a production technique of a high-wear-resistance aluminum alloy section. The alloy comprises the following elements in percentage by mass: 12-16% of Si, 4-6% of Mg, 2-3% of Zn, 0.6-1.2% of Mn, 0.4-0.8% of V, 0.3-0.5% of Cr, 0.2-0.3% of Ni, 0.18-0.22% of Ti, 0.1-0.15% of Co, 0.03-0.05% of As, 0.02-0.03% of In, 0.01-0.02% of P, 0.08-0.12% of RE and the balance of Al. By properly enhancing the Mg element content and optimizing the Si/Mg ratio, abundant Mg2Si phases can be generated in the alloy structure, and the hard granules can obviously enhance the wear resistance of the alloy; and small amounts of As, In and RE added into the alloy structure can improve the high-temperature stability of the alloy. The aluminum alloy section has the advantages of high strength, strong high-temperature stability and excellent wear resistance, and can be widely used in industrial wear-resistant parts.

Description

A kind of production technique of high abrasion aluminium alloy extrusions
Technical field
The present invention relates to a kind of production technique of high abrasion aluminium alloy extrusions, belong to the aluminum alloy materials technical field.
Background technology
Aluminum alloy materials density is low, but strength ratio is higher, approaches or surpasses the high-quality steel, and plasticity is good, can be processed into various section bars, has good electroconductibility, thermal conductivity and corrosion stability, has become one of metallic substance of tool potentiality, widespread use.The metallic substance that is generally used for the transmission system part is mostly to take light-weighted aluminium alloy, and this aluminum alloy materials need to have the mechanical properties of better wear resistance, yet along with the develop rapidly of science and technology and industrial economy in recent years, requirement to the wear resisting property of aluminum alloy materials is more and more higher, existing wear-resistant aluminum alloy still exists wear resisting property can not meet requirements at the higher level, and poor heat stability.
Summary of the invention
The object of the present invention is to provide a kind of production technique of high abrasion aluminium alloy extrusions, this aluminium alloy extrusions high-temperature stability is strong, wear resisting property is excellent, can be widely used in industrial wear-resistant component.
The technical solution used in the present invention is as follows:
A kind of production technique of high abrasion aluminium alloy extrusions comprises the following steps:
(1) furnace charge is dropped in smelting furnace and added hot smelting, after the furnace charge fusing, the insulating covering agent that sprinkles 3/5 amount covers, when alloy molten solution is warming up to 750-780 ℃, with the NaBF of charging weight 0.2-0.3% 4c with 0.4-0.6% 2cl 6carry out refining, enter the standing 10-15min of stove, while being cooled to 720-740 ℃, block alterant is pressed into to the stove center bottom, the processing of going bad, after metamorphic reaction 2-3min, sprinkle remaining 2/5 insulating covering agent, after standing 12-16min, can be cast, the quality percentage composition of guaranteeing each alloying element in liquation before casting is: Si 12-16, Mg 4-6, Zn 2-3, Mn 0.6-1.2, V 0.4-0.8, Cr 0.3-0.5, Ni 0.2-0.3, Ti 0.18-0.22, Co 0.1-0.15, As 0.03-0.05, In 0.02-0.03, P 0.01-0.02, RE 0.08-0.12, surplus is Al,
(2) the liquation continuous casting is become to ingot casting, then carry out the homogenizing annealing processing, ingot casting first is warming up to 220-240 ℃ from room temperature with 80-100 ℃/h, insulation 5-8h, be warming up to 460-490 ℃ with 105-125 ℃/h again, insulation 10-15h, and then be warming up to 540-560 ℃ with 55-65 ℃/h, insulation 6-12h, then be cooled to 320-350 ℃/h with 120-150 ℃/h, insulation 4-7h, finally be cooled to 180-240 ℃ with 50-60 ℃/h, insulation 3-5h, the air cooling of coming out of the stove is to room temperature; After homogenizing annealing, ingot casting is heated to 470-490 ℃, uses the extrusion machine extrusion molding, extruding rate is 7-10m/min;
(3) aluminium alloy extrusions is heated to 500-520 ℃, insulation 40-50min, put into 0-5 ℃ of icy salt solution after then with 320-350 ℃/h, being cooled to rapidly 120-150 ℃ and be down to below 50 ℃; The aluminium alloy extrusions that then will take out from salt solution first is warming up to 80-90 ℃ with 30-40 ℃/h, insulation 15-20h, then be warming up to 160-180 ℃ with 50-60 ℃/h, insulation 3-5h, then be cooled to 80-90 ℃ with 40-50 ℃/h, insulation 10-15h; Be warming up to 170-190 ℃ with 40-50 ℃/h again after being cooled to room temperature, insulation 4-6h, then be cooled to 70-80 ℃ with 50-60 ℃/h, insulation 10-15h, with the stove air cooling to room temperature;
(4) the aluminium alloy extrusions after ageing treatment obtains the high abrasion aluminium alloy extrusions after the operations such as anodic oxidation, electrophoretic painting.
Described insulating covering agent is mixed by the raw material of following weight part: sodium carbonate 10-15, Repone K 5-10, glass powder 8-12, lapis amiridis 5-10, Fluorspar Powder 5-10, coconut husk powdered carbon 4-6, aluminium nitride 3-5, magnesia powder 6-9, mullite powder 8-12, attapulgite 5-10.
The mass percent composition of described block alterant is: La 5-8, Ho 3-6, Yb 2-3, Si 10-14, As 4-7, In 3-5, P 2-3, surplus are Al; It, is cast into bulk and makes by norium ingot, AlPSi master alloy, AlAsIn master alloy and fine aluminium ingot after melting, refining, degasification slagging-off, stirring.
Beneficial effect of the present invention:
The present invention suitably improves the content of Mg element, optimizes the Si/Mg proportioning, in alloy structure, can generate a large amount of Mg 2the Si phase, these hard particles can significantly improve the wear resisting property of alloy, have also added a small amount of As, In and thulium in alloy structure simultaneously, can improve the high-temperature stability of alloy.Aluminium alloy extrusions intensity of the present invention is high, high-temperature stability is strong, wear resisting property is excellent, can be widely used in industrial wear-resistant component.
Embodiment
A kind of production technique of high abrasion aluminium alloy extrusions comprises the following steps:
(1) furnace charge is dropped in smelting furnace and added hot smelting, after the furnace charge fusing, the insulating covering agent that sprinkles 3/5 amount covers, when alloy molten solution is warming up to 765 ℃, with the NaBF of charging weight 0.3% 4with 0.5% C 2cl 6carry out refining, enter the standing 15min of stove, while being cooled to 730 ℃, block alterant is pressed into to the stove center bottom, the processing of going bad, after metamorphic reaction 2min, sprinkle remaining 2/5 insulating covering agent, after standing 14min, can be cast, the quality percentage composition of guaranteeing each alloying element in liquation before casting is: Si 12-16, Mg 4-6, Zn 2-3, Mn 0.6-1.2, V 0.4-0.8, Cr 0.3-0.5, Ni 0.2-0.3, Ti 0.18-0.22, Co 0.1-0.15, As 0.03-0.05, In 0.02-0.03, P 0.01-0.02, RE 0.08-0.12, surplus is Al,
(2) the liquation continuous casting is become to ingot casting, then carry out the homogenizing annealing processing, ingot casting first is warming up to 230 ℃ from room temperature with 90 ℃/h, insulation 6h, be warming up to 480 ℃ with 110 ℃/h again, insulation 12h, and then be warming up to 550 ℃ with 60 ℃/h, insulation 8h, then be cooled to 340 ℃/h with 140 ℃/h, insulation 6h, finally be cooled to 210 ℃ with 50 ℃/h, insulation 4h, the air cooling of coming out of the stove is to room temperature; After homogenizing annealing, ingot casting is heated to 480 ℃, uses the extrusion machine extrusion molding, extruding rate is 9m/min;
(3) aluminium alloy extrusions is heated to 510 ℃, insulation 45min, put into 2 ℃ of icy salt solutions after then with 330 ℃/h, being cooled to rapidly 140 ℃ and be down to below 50 ℃; The aluminium alloy extrusions that then will take out from salt solution first is warming up to 90 ℃ with 40 ℃/h, insulation 18h, then be warming up to 180 ℃ with 60 ℃/h, insulation 4h, then be cooled to 80 ℃ with 50 ℃/h, insulation 15h; Be warming up to 180 ℃ with 50 ℃/h again after being cooled to room temperature, insulation 5h, then be cooled to 80 ℃ with 60 ℃/h, insulation 12h, with the stove air cooling to room temperature;
(4) the aluminium alloy extrusions after ageing treatment obtains the high abrasion aluminium alloy extrusions after the operations such as anodic oxidation, electrophoretic painting.
Described insulating covering agent is mixed by the raw material of following weight (kg): sodium carbonate 12, Repone K 8, glass powder 10, lapis amiridis 6, Fluorspar Powder 8, coconut husk powdered carbon 5, aluminium nitride 4, magnesia powder 7, mullite powder 10, attapulgite 10.
The mass percent composition of described block alterant is: La 5-8, Ho 3-6, Yb 2-3, Si 10-14, As 4-7, In 3-5, P 2-3, surplus are Al; It, is cast into bulk and makes by norium ingot, AlPSi master alloy, AlAsIn master alloy and fine aluminium ingot after melting, refining, degasification slagging-off, stirring.
The aluminium alloy extrusions that the present embodiment makes is through check, and its mechanical property is: tensile strength 374Mpa, and yield strength is 248Mpa, elongation is 11.2%.
This aluminium alloy extrusions at the friction velocity of 0.065-4.5m/s, lubricating oil as under ambient condition, its wear loss≤0.010g/cm 2, illustrate that this aluminium alloy extrusions has excellent wear resisting property.

Claims (3)

1. the production technique of a high abrasion aluminium alloy extrusions is characterized in that comprising the following steps:
(1) furnace charge is dropped in smelting furnace and added hot smelting, after the furnace charge fusing, the insulating covering agent that sprinkles 3/5 amount covers, when alloy molten solution is warming up to 750-780 ℃, with the NaBF of charging weight 0.2-0.3% 4c with 0.4-0.6% 2cl 6carry out refining, enter the standing 10-15min of stove, while being cooled to 720-740 ℃, block alterant is pressed into to the stove center bottom, the processing of going bad, after metamorphic reaction 2-3min, sprinkle remaining 2/5 insulating covering agent, after standing 12-16min, can be cast, the quality percentage composition of guaranteeing each alloying element in liquation before casting is: Si 12-16, Mg 4-6, Zn 2-3, Mn 0.6-1.2, V 0.4-0.8, Cr 0.3-0.5, Ni 0.2-0.3, Ti 0.18-0.22, Co 0.1-0.15, As 0.03-0.05, In 0.02-0.03, P 0.01-0.02, RE 0.08-0.12, surplus is Al,
(2) the liquation continuous casting is become to ingot casting, then carry out the homogenizing annealing processing, ingot casting first is warming up to 220-240 ℃ from room temperature with 80-100 ℃/h, insulation 5-8h, be warming up to 460-490 ℃ with 105-125 ℃/h again, insulation 10-15h, and then be warming up to 540-560 ℃ with 55-65 ℃/h, insulation 6-12h, then be cooled to 320-350 ℃/h with 120-150 ℃/h, insulation 4-7h, finally be cooled to 180-240 ℃ with 50-60 ℃/h, insulation 3-5h, the air cooling of coming out of the stove is to room temperature; After homogenizing annealing, ingot casting is heated to 470-490 ℃, uses the extrusion machine extrusion molding, extruding rate is 7-10m/min;
(3) aluminium alloy extrusions is heated to 500-520 ℃, insulation 40-50min, put into 0-5 ℃ of icy salt solution after then with 320-350 ℃/h, being cooled to rapidly 120-150 ℃ and be down to below 50 ℃; The aluminium alloy extrusions that then will take out from salt solution first is warming up to 80-90 ℃ with 30-40 ℃/h, insulation 15-20h, then be warming up to 160-180 ℃ with 50-60 ℃/h, insulation 3-5h, then be cooled to 80-90 ℃ with 40-50 ℃/h, insulation 10-15h; Be warming up to 170-190 ℃ with 40-50 ℃/h again after being cooled to room temperature, insulation 4-6h, then be cooled to 70-80 ℃ with 50-60 ℃/h, insulation 10-15h, with the stove air cooling to room temperature;
(4) the aluminium alloy extrusions after ageing treatment obtains the high abrasion aluminium alloy extrusions after the operations such as anodic oxidation, electrophoretic painting.
2. the production technique of a kind of high abrasion aluminium alloy extrusions according to claim 1, it is characterized in that, described insulating covering agent is mixed by the raw material of following weight part: sodium carbonate 10-15, Repone K 5-10, glass powder 8-12, lapis amiridis 5-10, Fluorspar Powder 5-10, coconut husk powdered carbon 4-6, aluminium nitride 3-5, magnesia powder 6-9, mullite powder 8-12, attapulgite 5-10.
3. the production technique of a kind of high abrasion aluminium alloy extrusions according to claim 1, it is characterized in that, the mass percent composition of described block alterant is: La 5-8, Ho 3-6, Yb 2-3, Si 10-14, As 4-7, In 3-5, P 2-3, surplus are Al; It, is cast into bulk and makes by norium ingot, AlPSi master alloy, AlAsIn master alloy and fine aluminium ingot after melting, refining, degasification slagging-off, stirring.
CN201310348496.7A 2013-08-12 2013-08-12 Production technique of high-wear-resistance aluminum alloy section Pending CN103484697A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047505A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 Top border of door frame of vertical hinged door
CN104047498A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 U-shaped edge-sealing aluminium profile
CN104047506A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 Edging aluminum profile
CN104060133A (en) * 2014-05-26 2014-09-24 安徽盛达前亮铝业有限公司 Door frame top plate of sliding door
CN104060916A (en) * 2014-05-26 2014-09-24 安徽盛达前亮铝业有限公司 Suspending aluminum profile
CN106191721A (en) * 2016-07-07 2016-12-07 无锡戴尔普机电设备有限公司 A kind of Novel air adjustable valve blade material
CN111485149A (en) * 2020-04-21 2020-08-04 慈溪市宜美佳铝业有限公司 High-strength aluminum alloy section for front-cabin repeater and preparation method thereof

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CN102922226A (en) * 2012-08-27 2013-02-13 安徽家园铝业有限公司 Method for manufacturing aluminium alloy sections by utilizing heat tinting and electrophoretic coating
CN102978453A (en) * 2012-11-09 2013-03-20 安徽欣意电缆有限公司 Al-Fe-In-RE aluminum alloy, and preparation method and power cable thereof
CN103014463A (en) * 2012-12-01 2013-04-03 滁州晨润工贸有限公司 Processing method of anti-fatigue aluminum alloy foaming die cast

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1413838A (en) * 2001-09-12 2003-04-30 富士胶片株式会社 Support device for offset printing plate and offset printing plate raw sheet
CN102922226A (en) * 2012-08-27 2013-02-13 安徽家园铝业有限公司 Method for manufacturing aluminium alloy sections by utilizing heat tinting and electrophoretic coating
CN102978453A (en) * 2012-11-09 2013-03-20 安徽欣意电缆有限公司 Al-Fe-In-RE aluminum alloy, and preparation method and power cable thereof
CN103014463A (en) * 2012-12-01 2013-04-03 滁州晨润工贸有限公司 Processing method of anti-fatigue aluminum alloy foaming die cast

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047505A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 Top border of door frame of vertical hinged door
CN104047498A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 U-shaped edge-sealing aluminium profile
CN104047506A (en) * 2014-05-26 2014-09-17 安徽盛达前亮铝业有限公司 Edging aluminum profile
CN104060133A (en) * 2014-05-26 2014-09-24 安徽盛达前亮铝业有限公司 Door frame top plate of sliding door
CN104060916A (en) * 2014-05-26 2014-09-24 安徽盛达前亮铝业有限公司 Suspending aluminum profile
CN104047506B (en) * 2014-05-26 2016-02-10 安徽盛达前亮铝业有限公司 Edge sealed aluminium section bar
CN104047505B (en) * 2014-05-26 2016-02-10 安徽盛达前亮铝业有限公司 Vertical hinged door upper frame edge frame
CN104047498B (en) * 2014-05-26 2016-02-10 安徽盛达前亮铝业有限公司 U-shaped edge sealed aluminium section bar
CN106191721A (en) * 2016-07-07 2016-12-07 无锡戴尔普机电设备有限公司 A kind of Novel air adjustable valve blade material
CN111485149A (en) * 2020-04-21 2020-08-04 慈溪市宜美佳铝业有限公司 High-strength aluminum alloy section for front-cabin repeater and preparation method thereof

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Application publication date: 20140101