CN108754252A - New energy logistics car side board aluminium alloy thin-walled proximate matter and pressing method - Google Patents
New energy logistics car side board aluminium alloy thin-walled proximate matter and pressing method Download PDFInfo
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- CN108754252A CN108754252A CN201810605010.6A CN201810605010A CN108754252A CN 108754252 A CN108754252 A CN 108754252A CN 201810605010 A CN201810605010 A CN 201810605010A CN 108754252 A CN108754252 A CN 108754252A
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- walled
- aluminium alloy
- proximate matter
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
The present invention relates to a kind of new energy logistics car side board aluminium alloy thin-walled proximate matter and pressing methods, which is characterized in that its chemical constituent is by weight percentage：Mg:0.55-0.60%, Si:0.35-0.45%, Fe:0.10-0.22%, Cr:0.02-0.05%, Mn:0.02-0.05%, Cu:0.02-0.05%, compound rare-earth:0.05-0.1%, Zn≤0.05%, Ti≤0.03%, single content≤0.02% of other impurity elements, other impurity element total content≤0.15%, surplus Al.The present invention adjusts the content of alloying element, adds micro rare earth element and adjustment extrusion process and parameter by strictly controlling the ingredient of alloy, while ensureing aluminium alloy thin-walled proximate matter mechanical property, metal fluidity and extrudability are increased, extrusion speed is improved, production efficiency is high.
Description
Technical field
The present invention relates to a kind of aluminum alloy processing technology fields, and in particular to one kind being suitable for new energy logistics car side board
Aluminium alloy thin-walled proximate matter and pressing method.
Background technology
New-energy automobile industry is the strategic emerging industries in China.Development new-energy automobile is to solve energy environment issues
Important channel.So-called body of a motor car and structure lightened is exactly to be carried out to automobile product using the ways and means of science
Optimization design, by using new material, reduces automobile product certainly as far as possible under the premise of ensuring comprehensive vehicle performance index
Body weight, reach loss of weight, consumption reduction, environmental protection, safety integration objective.Studies have shown that automobile fuel used about 60% is consumed in vapour
Vehicle is conducted oneself with dignity, and the quality of automobile often mitigates 100kg, and every kilometer fuel used will to reduce 0.4L-0.8L, CO2Discharge will also be reduced.Combustion
Oily efficiency improves, it is meant that the fuel consumption and blowdown flow rate for reducing automobile, under same output power, lighter vehicle is for starting
It is exactly lighter load for machine, the manipulation stability of automobile also increases.It is sent out so reducing car body weight reducing
The power consumption and reduction automobile total weight of motivation have dual effect.
For logistics vehicles, compartment dead weight accounts for complete vehicle weight large percentage, and skeleton account for carriage weight ratio compared with
Greatly, therefore, the weight for mitigating compartment skeleton has become loglstics enterprise focus of attention.Since the proportion of aluminium is about the 1/3 of steel, aluminium
Alloy be recognized be automotive light weight technology ideal material.The lightweight of logistics vehicles compartment is trend of the times, aluminium alloy compartment and its
He compares material, can effectively reduce non-load weight, and aluminium recuperability is strong, handsome in appearance, saves energy consumption, thermal diffusivity
Good, corrosion-resistant, endurance becomes the material first that following logistics compartment manufacturing industry substitutes steel.
Although being had been provided with centainly by years of researches exploitation, demonstrating running and popularization and application, China's new-energy automobile
Industry Foundation, but compared in advanced country, China's new-energy automobile is in whole-control system, body of a motor car and structure lightened
Etc. there is also larger gaps.Current new energy logistics compartment goes along with sb. to guard him and mainly uses aluminum alloy outer cover, but covering exists
Insufficient strength the problem of, security performance cannot be guaranteed, therefore, the applicant develop aluminium alloy extrusions replace aluminium alloy illiteracy
Skin, but aluminium alloy extrusions wall thickness in 0.7-0.9mm, extruding master cylinder speed between 1.5-2.5mm/s, extrusion speed compared with
Slowly, for the overwhelming majority still 2.0, restrict extrusion speed mainly draws aluminium, wave, stress problems, and yield rate is caused to be only had
55%-60%, low production efficiency, production cost are very high.
Invention content
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of new energy logistics car side board to be closed with aluminium
Golden thin-wall section and pressing method, the present invention adjust the content of alloying element, addition is micro by strictly controlling the ingredient of alloy
Rare earth element and adjustment extrusion process and parameter increase metal while ensureing aluminium alloy thin-walled proximate matter mechanical property
Mobility and extrudability, improve extrusion speed, and production efficiency is high.
The invention is realized in this way：
A kind of aluminium alloy thin-walled proximate matter of new energy logistics car side board, which is characterized in that its chemical constituent by weight hundred
Point ratio is：Mg:0.55-0.60%, Si:0.35-0.45%, Fe:0.10-0.22%, Cr:0.02-0.05%, Mn:0.02-
0.05%, Cu:0.02-0.05%, compound rare-earth:0.05-0.1%, Zn≤0.05%, Ti≤0.03%, other impurity elements
Single content≤0.02%, other impurity element total content≤0.15%, surplus Al.
Further preferably, chemical constituent is by weight percentage：Mg:0.58%, Si:0.40%, Fe:0.18%, Cr:
0.03%, Mn:0.03%, Cu:0.03%, compound rare-earth:0.08%, Zn≤0.05%, Ti≤0.03%, other impurity elements
Single content≤0.02%, other impurity element total content≤0.15%, surplus Al.
Further preferably, the compound rare-earth includes La, Y, Er and Nd, and the weight percent of described La, Y, Er and Nd are
1:0.5:0.2:0.1。
The pressing method of the aluminium alloy thin-walled proximate matter of new energy logistics car side board of the present invention, which is characterized in that process is such as
Under：Aluminium ingot is squeezed using 1800T extruders, aluminium ingot, extrusion cylinder and mold are first heated to certain temperature before squeezing, so
Aluminium ingot is sent into extrusion cylinder afterwards and be squeezed, the master cylinder speed of extruder is 5.3-5.5mm/s when extruding, and extrusion cylinder temperature is
420 DEG C, mold temperature is 480-490 DEG C, and aluminium ingot head temperature is 465-475 DEG C, and aluminium ingot tail temperature is 425-435 DEG C, type
Material drop temperature is 520-540 DEG C, and extrusion ratio 50 obtains the aluminium alloy thin-walled proximate matter of aluminium.
Further preferably, the wall thickness of the aluminium alloy thin-walled proximate matter is 0.7-0.9mm.
Further preferably, the new energy logistics car side board with aluminium alloy thin-walled proximate matter in new energy logistics cabin side
Application on plate.
Utstanding substantial characteristics and significant improvement of the present invention are：
1, the ingredient of the invention by strictly controlling alloy, adjusts the content of alloying element, adds micro compound rare-earth
Element and adjustment extrusion process and parameter increase metal fluidity while ensureing aluminium alloy thin-walled proximate matter mechanical property
And extrudability, extrusion speed is improved, production efficiency is high, and yield rate improves to 75% or more, greatly reduces and be produced into
This.
2, micro compound rare-earth element is added in the present invention, enables aluminum alloy to increase constitutional supercooling when founding, crystal grain thinning subtracts
Few secondary dendrite spacing reduces the gas in alloy and is mingled with, and constituent phases is made to tend to nodularization, improves intensity and the drawing of aluminium alloy
Stretch rate, La and Nd can reduce smelt surface tension, increase the mobility of metal, improve the extrusion process performance of aluminium alloy, Y and
Er additions can form Al3Er,Al3Y compound phases, have invigoration effect to crystal boundary, improve the intensity and extensibility of aluminium alloy.
Specific implementation mode
Embodiment 1
It is by weight percentage：Mg:0.55%, Si:0.35%, Fe:0.10%, Cr:0.02%, Mn:0.02%, Cu:
0.02%, compound rare-earth:0.05%, Zn≤0.05%, Ti≤0.03%, single content≤0.02% of other impurity elements, its
Its impurity element total content≤0.15%, surplus Al carry out dispensing.
Embodiment 2
It is by weight percentage：Mg:0.58%, Si:0.40%, Fe:0.18%, Cr:0.03%, Mn:0.03%, Cu:
0.03%, compound rare-earth:0.08%, Zn≤0.05%, Ti≤0.03%, single content≤0.02% of other impurity elements, its
Its impurity element total content≤0.15%, surplus Al carry out dispensing.
Embodiment 3
It is by weight percentage：Mg:0.56%, Si:0.42%, Fe:0.20%, Cr:0.04%, Mn:0.04%, Cu:
0.04%, compound rare-earth:0.06%, Zn≤0.05%, Ti≤0.03%, single content≤0.02% of other impurity elements, its
Its impurity element total content≤0.15%, surplus Al carry out dispensing.
Embodiment 4
It is by weight percentage：Mg:0.60%, Si:0.45%, Fe:0.22%, Cr:0.05%, Mn:0.05%, Cu:
0.05%, compound rare-earth:0.1%, Zn≤0.05%, Ti≤0.03%, it is single content≤0.02% of other impurity elements, other
Impurity element total content≤0.15%, surplus Al carry out dispensing.
The present invention adjusts the content of alloying element, adds micro compound rare-earth member by strictly controlling the ingredient of alloy
Element and adjustment extrusion process and parameter, while ensureing aluminium alloy thin-walled proximate matter mechanical property, increase metal fluidity with
Extrudability improves extrusion speed, and production efficiency is high, and yield rate is improved to 75% or more, greatly reduces production cost.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (6)
1. a kind of aluminium alloy thin-walled proximate matter of new energy logistics car side board, which is characterized in that its chemical constituent percentage by weight
Than for：Mg:0.55-0.60%, Si:0.35-0.45%, Fe:0.10-0.22%, Cr:0.02-0.05%, Mn:0.02-
0.05%, Cu:0.02-0.05%, compound rare-earth:0.05-0.1%, Zn≤0.05%, Ti≤0.03%, other impurity elements
Single content≤0.02%, other impurity element total content≤0.15%, surplus Al.
2. the aluminium alloy thin-walled proximate matter of new energy logistics car side board according to claim 1, it is characterised in that：Its chemistry
Component is by weight percentage：Mg:0.58%, Si:0.40%, Fe:0.18%, Cr:0.03%, Mn:0.03%, Cu:
0.03%, compound rare-earth:0.08%, Zn≤0.05%, Ti≤0.03%, single content≤0.02% of other impurity elements, its
Its impurity element total content≤0.15%, surplus Al.
3. the aluminium alloy thin-walled proximate matter of new energy logistics car side board according to claim 1 or 2, it is characterised in that：Institute
It includes La, Y, Er and Nd to state compound rare-earth, and the weight percent of described La, Y, Er and Nd are 1:0.5:0.2:0.1.
4. the new energy logistics car side board pressing method of aluminium alloy thin-walled proximate matter as claimed in claim 1 or 2, feature
It is, process is as follows：Aluminium ingot is squeezed using 1800T extruders, is first heated to aluminium ingot, extrusion cylinder and mold before squeezing
Then aluminium ingot is sent into extrusion cylinder and be squeezed by certain temperature, the master cylinder speed of extruder is 5.3- when the extruding
5.5mm/s, the extrusion cylinder temperature are 420 DEG C, and the mold temperature is 480-490 DEG C, and the aluminium ingot head temperature is 465-
475 DEG C, the aluminium ingot tail temperature is 425-435 DEG C, and the proximate matter drop temperature is 520-540 DEG C, and extrusion ratio 50 obtains
Aluminium alloy thin-walled proximate matter.
5. the new energy logistics car side board pressing method of aluminium alloy thin-walled proximate matter according to claim 4, feature
It is：The wall thickness of the aluminium alloy thin-walled proximate matter is 0.7-0.9mm.
6. new energy logistics car side board as claimed in claim 1 or 2 is with aluminium alloy thin-walled proximate matter in new energy logistics cabin side
Application on plate.
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| CN201810605010.6A CN108754252A (en) | 2018-06-13 | 2018-06-13 | New energy logistics car side board aluminium alloy thin-walled proximate matter and pressing method |
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| CN201810605010.6A CN108754252A (en) | 2018-06-13 | 2018-06-13 | New energy logistics car side board aluminium alloy thin-walled proximate matter and pressing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690847A (en) * | 2020-07-14 | 2020-09-22 | 四川中德铝业有限公司 | Aluminum alloy profile and preparation method thereof |
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| CN101509088A (en) * | 2008-11-14 | 2009-08-19 | 内蒙古吉泰铝业有限公司 | High-strength, high-ductility rare earth aluminum alloy material and method of producing the same |
| CN105238971A (en) * | 2015-11-19 | 2016-01-13 | 湖南创元铝业有限公司 | Aluminum alloy and preparation method of aluminum alloy product |
| CN105838942A (en) * | 2016-05-20 | 2016-08-10 | 淮安和通汽车零部件有限公司 | 6042 aluminum alloy and preparation method thereof |
| CN106521268A (en) * | 2016-12-30 | 2017-03-22 | 中山瑞泰铝业有限公司 | Aluminum alloy for consumer electronic product shell and preparing method and application of aluminum alloy |
| CN107058821A (en) * | 2017-03-29 | 2017-08-18 | 江苏江南创佳型材有限公司 | The manufacture method of 6063 aluminium alloy extrusions |
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2018
- 2018-06-13 CN CN201810605010.6A patent/CN108754252A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509088A (en) * | 2008-11-14 | 2009-08-19 | 内蒙古吉泰铝业有限公司 | High-strength, high-ductility rare earth aluminum alloy material and method of producing the same |
| CN105238971A (en) * | 2015-11-19 | 2016-01-13 | 湖南创元铝业有限公司 | Aluminum alloy and preparation method of aluminum alloy product |
| CN105838942A (en) * | 2016-05-20 | 2016-08-10 | 淮安和通汽车零部件有限公司 | 6042 aluminum alloy and preparation method thereof |
| CN106521268A (en) * | 2016-12-30 | 2017-03-22 | 中山瑞泰铝业有限公司 | Aluminum alloy for consumer electronic product shell and preparing method and application of aluminum alloy |
| CN107058821A (en) * | 2017-03-29 | 2017-08-18 | 江苏江南创佳型材有限公司 | The manufacture method of 6063 aluminium alloy extrusions |
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|---|---|---|---|---|
| CN111690847A (en) * | 2020-07-14 | 2020-09-22 | 四川中德铝业有限公司 | Aluminum alloy profile and preparation method thereof |
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Application publication date: 20181106 |