CN107267818B - A kind of bumper aluminium alloy and preparation method thereof - Google Patents
A kind of bumper aluminium alloy and preparation method thereof Download PDFInfo
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- CN107267818B CN107267818B CN201710421086.9A CN201710421086A CN107267818B CN 107267818 B CN107267818 B CN 107267818B CN 201710421086 A CN201710421086 A CN 201710421086A CN 107267818 B CN107267818 B CN 107267818B
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Forging (AREA)
- Conductive Materials (AREA)
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Abstract
The invention discloses a kind of bumper aluminium alloys, ingredient containing following weight percent: magnesium 0.53-0.58%, silicon 0.75-0.8%, iron 0.15-0.2%, chromium 0.06-0.1%, manganese 0.28-0.3%, zinc < 0.1%, copper < 0.1%, titanium < 0.1%, surplus are aluminium.
Description
Technical field
The present invention relates to aluminum alloy materials technical field more particularly to a kind of bumper aluminium alloy and its preparation sides
Method.
Background technique
With the promotion of automobile fuel consumption standard limit, automotive light weight technology has become the trend of social development.Car insurance
Thick stick is mounted in the safety device of automobile front and rear part, is the component contacted first during colliding, has to absorb and mitigate
Foreign impacts power, reduce collision accident to the injury of pedestrian, reduce low speed collision accident to the damage effect of vehicle.It is usually
A kind of surface area is big, complex-shaped thin-walled workpiece, it is desirable that possesses higher shock resistance.
Existing frequently-used bumper is made of steel or stainless steel material, due to its heavier mass, is directly added
The quality for having weighed vehicle increases its fuel consumption, does not meet the demand of social development.There are also bumpers to use polyurethane bullet
Property the preparation of the materials such as body and ABS, but these material prices are expensive, and complex forming technology, can greatly increase bearing for buyer
Load.On this basis, the bumper made of light weight, intensity high aluminum alloy materials is increasingly by the blueness of people
It looks at.However, the production technology of existing bumper aluminum alloy materials is also immature, the welding performance and extension of bumper
Rate is also undesirable, is not able to satisfy the requirement of bumper service performance.How on the basis for not reducing aluminum alloy materials intensity
The upper welding performance for improving material and elongation percentage are the technical problems to be solved by the invention.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of good welding performance, elongation percentage and the high car insurances of intensity
Thick stick aluminium alloy and preparation method thereof.
The present invention is realized by following technological means solves above-mentioned technical problem:
A kind of bumper aluminium alloy, the ingredient containing following weight percent: magnesium 0.53-0.58%, silicon 0.75-
0.8%, iron 0.15-0.2%, chromium 0.06-0.1%, manganese 0.28-0.3%, zinc < 0.1%, copper < 0.1%, titanium < 0.1%, it is remaining
Amount is aluminium.
A kind of bumper aluminium alloy, is made of following steps:
(1) magnesium, silicon, iron, chromium, manganese raw material are weighed, is mixed by weight 6:9:1.5:0.8:3, silicon alloy is made in fusing
Block；
(2) aluminium ingot is heated to 720-730 DEG C of fusing, keeps the temperature 12-16 minutes, silicon alloy block obtained is added, it is sufficiently mixed
Other alloying ingredient ingredients are added after conjunction, are sufficiently mixed, is passed through refining agent and is refined, skimmed, then stokehold is carried out to molten aluminum
Quickly analysis is learned, molten aluminum component is adjusted according to the weight ratio of each component in formula after analysis, feed supplement is carried out to molten aluminum；
(3) aluminium titanium boron wire is added at the uniform velocity into molten aluminum and carries out online refinement crystal grain, the weight hundred of titanium in the aluminium titanium boron wire
Divide than being 5%, the weight percent of boron is 1%；
(4) power supply is accessed in the casting mold of casting die, is poured molten aluminum into casting die, to casting die while casting
Casting mold in be passed through electric current, size of current 55A obtains aluminium alloy ingots, is cooled to 450-460 DEG C, keeps the temperature 5-6 hour, then sky
Gas slow cooling keeps the temperature 3-4 hours to 250-260 DEG C；
(5) extrusion die is warmed to 655-675 DEG C, and aluminium alloy ingots is sent into extrusion die, and the profile squeezed out is put into water
Middle rapid cooling 2-3 minutes, cooled to room temperature after taking-up.
The present invention has the advantages that the present invention is by adjusting certain ingredients in bumper aluminum alloy chemical composition
Content reaches optimal combination, and the elongation percentage and weldability of aluminium alloy are improved on the basis of not reducing intensity of aluminum alloy
Energy；Meanwhile in aluminium alloy preparation, the side of electric current is passed through using aluminium titanium boron wire online refinement crystal grain and into the casting mold of mold
Method obtains the aluminum alloy organization that even tissue, crystal grain is tiny, defect is substantially reduced, improves the mechanical property of aluminium alloy.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of bumper aluminium alloy, the ingredient containing following weight percent: magnesium 0.55%, silicon 0.78%, iron
0.18%, chromium 0.08%, manganese 0.29%, zinc < 0.1%, copper < 0.1%, titanium < 0.1%, surplus are aluminium.
A kind of bumper aluminium alloy, is made of following steps:
(1) magnesium, silicon, iron, chromium, manganese raw material are weighed, is mixed by weight 6:9:1.5:0.8:3, silicon alloy is made in fusing
Block；
(2) aluminium ingot is heated to 725 DEG C of fusings, keeps the temperature 14 minutes, silicon alloy block obtained is added, is added after being sufficiently mixed
Other alloying ingredient ingredients, are sufficiently mixed, and are passed through refining agent and are refined, skimmed, then carry out stokehold chemistry to molten aluminum and quickly divide
Analysis adjusts molten aluminum component according to the weight ratio of each component in formula after analysis, carries out feed supplement to molten aluminum；
(3) aluminium titanium boron wire is added at the uniform velocity into molten aluminum and carries out online refinement crystal grain, the weight hundred of titanium in the aluminium titanium boron wire
Divide than being 5%, the weight percent of boron is 1%；
(4) power supply is accessed in the casting mold of casting die, is poured molten aluminum into casting die, to casting die while casting
Casting mold in be passed through electric current, size of current 55A obtains aluminium alloy ingots, is cooled to 450-460 DEG C, keeps the temperature 5-6 hour, then sky
Gas slow cooling keeps the temperature 3-4 hours to 250-260 DEG C；
(5) extrusion die is warmed to 655-675 DEG C, and aluminium alloy ingots is sent into extrusion die, and the profile squeezed out is put into water
Middle rapid cooling 2-3 minutes, cooled to room temperature after taking-up.
The present invention reaches best by adjusting the content of certain ingredients in bumper aluminum alloy chemical composition
Combination, improves the elongation percentage and welding performance of aluminium alloy on the basis of not reducing intensity of aluminum alloy；Meanwhile in aluminium alloy system
When standby, the method that electric current is passed through using aluminium titanium boron wire online refinement crystal grain and into the casting mold of mold obtains even tissue, crystalline substance
The aluminum alloy organization that grain is tiny, defect is substantially reduced, improves the mechanical property of aluminium alloy.
Following table is the performance of aluminium alloy in the embodiment of the present invention:
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (1)
1. a kind of bumper aluminium alloy, it is characterised in that: the ingredient containing following weight percent: magnesium 0.53-
0.58%, silicon 0.75-0.8%, iron 0.15-0.2%, chromium 0.06-0.1%, manganese 0.28-0.3%, zinc < 0.1%, copper <
0.1%, titanium < 0.1%, surplus are aluminium；Above-mentioned aluminium alloy is made of following steps:
(1) magnesium, silicon, iron, chromium, manganese raw material are weighed, is mixed by weight 6:9:1.5:0.8:3, silicon alloy block is made in fusing；
(2) aluminium ingot is heated to 720-730 DEG C of fusing, keeps the temperature 12-16 minutes, silicon alloy block obtained is added, after being sufficiently mixed
Other alloying ingredient ingredients are added, are sufficiently mixed, is passed through refining agent and is refined, skimmed, then stokehold chemistry is carried out fastly to molten aluminum
Speed analysis, adjusts molten aluminum component according to the weight ratio of each component in formula after analysis, carries out feed supplement to molten aluminum；
(3) aluminium titanium boron wire is added at the uniform velocity into molten aluminum and carries out online refinement crystal grain, the weight percent of titanium in the aluminium titanium boron wire
It is 5%, the weight percent of boron is 1%；
(4) power supply is accessed in the casting mold of casting die, is poured molten aluminum into casting die, casting while casting to casting die
Electric current is passed through in type, size of current 55A obtains aluminium alloy ingots, is cooled to 450-460 DEG C, keeps the temperature 5-6 hours, then air is slow
It is cooled to 250-260 DEG C, keeps the temperature 3-4 hours；
(5) extrusion die is warmed to 655-675 DEG C, and aluminium alloy ingots is sent into extrusion die, and the profile squeezed out is fast into the water
Quickly cooling but 2-3 minutes, cooled to room temperature after taking-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421086.9A CN107267818B (en) | 2017-06-07 | 2017-06-07 | A kind of bumper aluminium alloy and preparation method thereof |
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|---|---|---|---|
| CN201710421086.9A CN107267818B (en) | 2017-06-07 | 2017-06-07 | A kind of bumper aluminium alloy and preparation method thereof |
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| CN107267818A CN107267818A (en) | 2017-10-20 |
| CN107267818B true CN107267818B (en) | 2019-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108086536B (en) * | 2017-12-19 | 2019-08-16 | 福建奋安智能门窗系统有限公司 | Assembled glass sunlight house |
| CN110129634B (en) * | 2019-05-23 | 2021-10-22 | 鼎镁新材料科技股份有限公司 | Impact-resistant high-energy-absorption high-manganese 6XXX series aluminum alloy and preparation method thereof |
| CN112743304A (en) * | 2020-12-30 | 2021-05-04 | 深圳市恩利来科技有限公司 | Environment-friendly alloy material deep processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2287365A1 (en) * | 1974-10-10 | 1976-05-07 | Cegedur | Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness |
| US4082578A (en) * | 1976-08-05 | 1978-04-04 | Aluminum Company Of America | Aluminum structural members for vehicles |
| JP2000239810A (en) * | 1999-02-23 | 2000-09-05 | Nippon Light Metal Co Ltd | Production of thin extruded shape, extruder and aluminum extruded shape |
| CN101984111A (en) * | 2010-12-06 | 2011-03-09 | 天津锐新电子热传技术股份有限公司 | Aluminum alloy section of secondary stress member of automobile bumper and preparation method thereof |
-
2017
- 2017-06-07 CN CN201710421086.9A patent/CN107267818B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2287365A1 (en) * | 1974-10-10 | 1976-05-07 | Cegedur | Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness |
| US4082578A (en) * | 1976-08-05 | 1978-04-04 | Aluminum Company Of America | Aluminum structural members for vehicles |
| JP2000239810A (en) * | 1999-02-23 | 2000-09-05 | Nippon Light Metal Co Ltd | Production of thin extruded shape, extruder and aluminum extruded shape |
| CN101984111A (en) * | 2010-12-06 | 2011-03-09 | 天津锐新电子热传技术股份有限公司 | Aluminum alloy section of secondary stress member of automobile bumper and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107267818A (en) | 2017-10-20 |
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Address after: 242000 entrepreneurship Road, Xuancheng economic and Technological Development Zone, Anhui Patentee after: Anhui Shengxin New Material Co., Ltd Address before: 242000 entrepreneurship Road, Xuancheng economic and Technological Development Zone, Anhui Patentee before: ANHUI SHENGXIN ALUMINUM CORPORATION LIMITED |