CN104532080A - Aluminum alloy materials for car exhaust pipe and preparation method thereof - Google Patents
Aluminum alloy materials for car exhaust pipe and preparation method thereof Download PDFInfo
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- CN104532080A CN104532080A CN201410847954.6A CN201410847954A CN104532080A CN 104532080 A CN104532080 A CN 104532080A CN 201410847954 A CN201410847954 A CN 201410847954A CN 104532080 A CN104532080 A CN 104532080A
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Abstract
The invention relates to the technical field of deep processing of aluminum alloy materials, in particular to aluminum alloy materials for a car exhaust pipe and a preparation method of the aluminum alloy materials. The aluminum alloy materials for the car exhaust pipe comprises, by weight, 0.6-0.7 percent of silicon, 0.4-0.5 percent of iron, 0.15-0.2 percent of copper, 0.4-0.5 percent of magnesium, 0.05-0.1 percent of manganese, 0.1-0.15 percent of zinc and the balance aluminum. The aluminum alloy materials for the car exhaust pipe have the advantage of good bending performance, can guarantee that product is not broken when bent when the storage time in a natural air environment is not limited before and after ageing, is not broken when bent by 45-90 degrees, and has the advantages of being firm after welding and not discoloring after surface processing.
Description
Technical field
The present invention relates to aluminum alloy materials deep process technology field, be specifically related to effective aluminum alloy materials of a kind of auto exhaust and preparation method thereof.
Background technology
The vapor pipe of automobile normally manufactures with ferrous metal.In prior art, the bending performance of the automobile exhaust pipe utilizing aluminium alloy to manufacture is bad, easily fracture after bending 45 ~ 90 degree.And the effective aluminum alloy materials of auto exhaust of the prior art is firm not after freezing, and the easy variable color of the effective aluminum alloy materials of auto exhaust after the surface treatment carrying out " change and throw ".
Summary of the invention
An object of the present invention is for the deficiencies in the prior art, provides a kind of bending performance good, after freezing firmly, and the effective aluminum alloy materials of non-discoloring auto exhaust after surface treatment.
Two of object of the present invention is for the deficiencies in the prior art, provides a kind of bending performance good, after freezing firmly, and the preparation method of the effective aluminum alloy materials of non-discoloring auto exhaust after surface treatment.
One of to achieve these goals, the present invention adopts following technical scheme:
There is provided a kind of auto exhaust effective aluminum alloy materials, it comprises the component of following weight percent:
Silicon 0.6% ~ 0.7%
Iron 0.4% ~ 0.5%
Copper 0.15% ~ 0.2%
Magnesium 0.4% ~ 0.5%
Manganese 0.05% ~ 0.1%
Zinc 0.1% ~ 0.15%
All the other are aluminium.
Preferably, the effective aluminum alloy materials of a kind of auto exhaust, is characterized in that: it comprises the component of following weight percent:
Silicon 0.65%
Iron 0.45%
Copper 0.18%
Magnesium 0.45%
Manganese 0.07%
Zinc 0.13%
All the other are aluminium.
To achieve these goals two, the present invention adopts following technical scheme:
There is provided the preparation method of the effective aluminum alloy materials of a kind of auto exhaust, it comprises the following steps:
Step one, molten aluminium: drop into aluminium ingot in sintering oven, carrying out melting is aluminium liquid;
Step 2, melting mixing: drop into the silicon of formula ratio, iron, copper, magnesium, manganese and zinc in the aluminium liquid of step one baker, obtain melting mixing liquid after high-temperature fusion;
Step 3, nitrogen refining: pass into nitrogen and carry out refining degasification in the melting mixing liquid that step 2 obtains, obtain refine molten mixed solution;
Step 4, first time chemical examination: first time chemical examination is carried out to detect degassing effect to the refine molten mixed solution that step 3 obtains;
Step 5, leaves standstill: leave standstill certain hour to the refine molten mixed solution of step 4;
Step 6, nitrogen secondary refining: the refine molten mixed solution after leaving standstill step 5 carries out second time nitrogen refining degasification, obtains secondary refining melting mixing liquid;
Step 7, second time chemical examination: second time chemical examination is carried out to detect degassing effect to the secondary refining melting mixing liquid that step 6 obtains;
Step 8, leaves standstill: leave standstill certain hour to the secondary refining melting mixing liquid of step 7;
Step 9, filters: the secondary refining melting mixing liquid after leaving standstill step 8 filters to remove impurity, obtains impurity elimination fused solution;
Step 10, casting rod: the impurity elimination fused solution utilizing step 9 to obtain carries out casting aluminum alloy bar;
Step 11, auto exhaust pipe manufacturer: utilize the aluminium alloy bars of step 10 to carry out homogenization treatment, solid molten, extruding, quenching, stretching, fracture, variable test, welding test and surface treatment respectively, then obtain the effective aluminum alloy materials of auto exhaust.
In technique scheme, in described step one, the temperature of described sintering oven is 450 DEG C ~ 500 DEG C.
In technique scheme, in described step 5,20 minutes ~ 30 minutes are left standstill to the refine molten mixed solution of step 4.
In technique scheme, in described step 8,20 minutes ~ 30 minutes are left standstill to the secondary refining melting mixing liquid of step 7.
Compared with prior art, beneficial effect is in the present invention:
(1) the effective aluminum alloy materials of a kind of auto exhaust provided by the invention, has the advantage that bending performance is good, before timeliness and after timeliness, also can ensure that product bending is not ruptured time unrestricted within the natural air ambient shelf-time; The effective aluminum alloy materials of this auto exhaust does not rupture after bending 45 ~ 90 degree; And the effective aluminum alloy materials of this auto exhaust, through the test of bender, does not occur rupturing for 1 time in the bending of every 50 times; In addition, after the effective aluminum alloy materials of this auto exhaust parks 240 hours under 30 DEG C of normal temperature, rupturing for 2 times does not appear in every 100 effective aluminum alloy materials of auto exhaust.
(2) the effective aluminum alloy materials of a kind of auto exhaust provided by the invention, have after freezing firm, and non-discoloring advantage after surface treatment, the gloss of the effective aluminum alloy materials of this auto exhaust testing product after the surface treatment carrying out " chemical rightenning ": under natural light, uniform color.
(4) preparation method of the effective aluminum alloy materials of a kind of auto exhaust provided by the invention, have method simple, production cost is low, can be applicable to scale operation.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1.
The effective aluminum alloy materials of a kind of auto exhaust, it comprises the component of following weight:
Silicon 0.65 kg, iron 0.45 kg, copper 0.18 kg, magnesium 0.45 kg, manganese 0.07 kg, zinc 0.13 kg, all the other are aluminium.
The preparation method of the effective aluminum alloy materials of above-mentioned auto exhaust is as follows:
Step one, molten aluminium: be drop into aluminium ingot in the sintering oven of 480 DEG C toward temperature, carrying out melting is aluminium liquid;
Step 2, melting mixing: drop into the silicon of formula ratio, iron, copper, magnesium, manganese and zinc in the aluminium liquid of step one baker, obtain melting mixing liquid after high-temperature fusion;
Step 3, nitrogen refining: pass into nitrogen and carry out refining degasification in the melting mixing liquid that step 2 obtains, obtain refine molten mixed solution;
Step 4, first time chemical examination: first time chemical examination is carried out to detect degassing effect to the refine molten mixed solution that step 3 obtains;
Step 5, leaves standstill: leave standstill 25 minutes to the refine molten mixed solution of step 4;
Step 6, nitrogen secondary refining: the refine molten mixed solution after leaving standstill step 5 carries out second time nitrogen refining degasification, obtains secondary refining melting mixing liquid;
Step 7, second time chemical examination: second time chemical examination is carried out to detect degassing effect to the secondary refining melting mixing liquid that step 6 obtains;
Step 8, leaves standstill: leave standstill 25 minutes to the secondary refining melting mixing liquid of step 7;
Step 9, filters: the secondary refining melting mixing liquid after leaving standstill step 8 filters to remove impurity, obtains impurity elimination fused solution;
Step 10, casting rod: the impurity elimination fused solution utilizing step 9 to obtain carries out casting aluminum alloy bar;
Step 11, auto exhaust pipe manufacturer: utilize the aluminium alloy bars of step 10 to carry out homogenization treatment, solid molten, extruding, quenching, stretching, fracture, variable test, welding test and surface treatment respectively, then obtain the effective aluminum alloy materials of auto exhaust.
embodiment 2.
The effective aluminum alloy materials of a kind of auto exhaust, it comprises the component of following weight:
Silicon 0.6 kg, iron 0.4 kg, copper 0.15 kg, magnesium 0.4 kg, manganese 0.05 kg, zinc 0.1 kg, all the other are aluminium.
The preparation method of the effective aluminum alloy materials of above-mentioned auto exhaust is as follows:
Step one, molten aluminium: be drop into aluminium ingot in the sintering oven of 450 DEG C toward temperature, carrying out melting is aluminium liquid;
Step 2, melting mixing: drop into the silicon of formula ratio, iron, copper, magnesium, manganese and zinc in the aluminium liquid of step one baker, obtain melting mixing liquid after high-temperature fusion;
Step 3, nitrogen refining: pass into nitrogen and carry out refining degasification in the melting mixing liquid that step 2 obtains, obtain refine molten mixed solution;
Step 4, first time chemical examination: first time chemical examination is carried out to detect degassing effect to the refine molten mixed solution that step 3 obtains;
Step 5, leaves standstill: leave standstill 20 minutes to the refine molten mixed solution of step 4;
Step 6, nitrogen secondary refining: the refine molten mixed solution after leaving standstill step 5 carries out second time nitrogen refining degasification, obtains secondary refining melting mixing liquid;
Step 7, second time chemical examination: second time chemical examination is carried out to detect degassing effect to the secondary refining melting mixing liquid that step 6 obtains;
Step 8, leaves standstill: leave standstill 20 minutes to the secondary refining melting mixing liquid of step 7;
Step 9, filters: the secondary refining melting mixing liquid after leaving standstill step 8 filters to remove impurity, obtains impurity elimination fused solution;
Step 10, casting rod: the impurity elimination fused solution utilizing step 9 to obtain carries out casting aluminum alloy bar;
Step 11, auto exhaust pipe manufacturer: utilize the aluminium alloy bars of step 10 to carry out homogenization treatment, solid molten, extruding, quenching, stretching, fracture, variable test, welding test and surface treatment respectively, then obtain the effective aluminum alloy materials of auto exhaust.
embodiment 3.
The effective aluminum alloy materials of a kind of auto exhaust, it comprises the component of following weight:
Silicon 0.7 kg, iron 0.5 kg, copper 0.2 kg, magnesium 0.5 kg, manganese 0.1 kg, zinc 0.15 kg, all the other are aluminium.
The preparation method of the effective aluminum alloy materials of above-mentioned auto exhaust is as follows:
Step one, molten aluminium: be drop into aluminium ingot in the sintering oven of 500 DEG C toward temperature, carrying out melting is aluminium liquid;
Step 2, melting mixing: drop into the silicon of formula ratio, iron, copper, magnesium, manganese and zinc in the aluminium liquid of step one baker, obtain melting mixing liquid after high-temperature fusion;
Step 3, nitrogen refining: pass into nitrogen and carry out refining degasification in the melting mixing liquid that step 2 obtains, obtain refine molten mixed solution;
Step 4, first time chemical examination: first time chemical examination is carried out to detect degassing effect to the refine molten mixed solution that step 3 obtains;
Step 5, leaves standstill: leave standstill 30 minutes to the refine molten mixed solution of step 4;
Step 6, nitrogen secondary refining: the refine molten mixed solution after leaving standstill step 5 carries out second time nitrogen refining degasification, obtains secondary refining melting mixing liquid;
Step 7, second time chemical examination: second time chemical examination is carried out to detect degassing effect to the secondary refining melting mixing liquid that step 6 obtains;
Step 8, leaves standstill: leave standstill 30 minutes to the secondary refining melting mixing liquid of step 7;
Step 9, filters: the secondary refining melting mixing liquid after leaving standstill step 8 filters to remove impurity, obtains impurity elimination fused solution;
Step 10, casting rod: the impurity elimination fused solution utilizing step 9 to obtain carries out casting aluminum alloy bar;
Step 11, auto exhaust pipe manufacturer: utilize the aluminium alloy bars of step 10 to carry out homogenization treatment, solid molten, extruding, quenching, stretching, fracture, variable test, welding test and surface treatment respectively, then obtain the effective aluminum alloy materials of auto exhaust.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. the effective aluminum alloy materials of auto exhaust, is characterized in that: it comprises the component of following weight percent:
Silicon 0.6% ~ 0.7%
Iron 0.4% ~ 0.5%
Copper 0.15% ~ 0.2%
Magnesium 0.4% ~ 0.5%
Manganese 0.05% ~ 0.1%
Zinc 0.1% ~ 0.15%
All the other are aluminium.
2. the effective aluminum alloy materials of a kind of auto exhaust according to claim 1, is characterized in that: it comprises the component of following weight percent:
Silicon 0.65%
Iron 0.45%
Copper 0.18%
Magnesium 0.45%
Manganese 0.07%
Zinc 0.13%
All the other are aluminium.
3. the preparation method of the effective aluminum alloy materials of a kind of auto exhaust described in claim 1 to 2 any one, is characterized in that: it comprises the following steps:
Step one, molten aluminium: drop into aluminium ingot in sintering oven, carrying out melting is aluminium liquid;
Step 2, melting mixing: drop into the silicon of formula ratio, iron, copper, magnesium, manganese and zinc in the aluminium liquid of step one baker, obtain melting mixing liquid after high-temperature fusion;
Step 3, nitrogen refining: pass into nitrogen and carry out refining degasification in the melting mixing liquid that step 2 obtains, obtain refine molten mixed solution;
Step 4, first time chemical examination: first time chemical examination is carried out to detect degassing effect to the refine molten mixed solution that step 3 obtains;
Step 5, leaves standstill: leave standstill certain hour to the refine molten mixed solution of step 4;
Step 6, nitrogen secondary refining: the refine molten mixed solution after leaving standstill step 5 carries out second time nitrogen refining degasification, obtains secondary refining melting mixing liquid;
Step 7, second time chemical examination: second time chemical examination is carried out to detect degassing effect to the secondary refining melting mixing liquid that step 6 obtains;
Step 8, leaves standstill: leave standstill certain hour to the secondary refining melting mixing liquid of step 7;
Step 9, filters: the secondary refining melting mixing liquid after leaving standstill step 8 filters to remove impurity, obtains impurity elimination fused solution;
Step 10, casting rod: the impurity elimination fused solution utilizing step 9 to obtain carries out casting aluminum alloy bar;
Step 11, auto exhaust pipe manufacturer: utilize the aluminium alloy bars of step 10 to carry out homogenization treatment, solid molten, extruding, quenching, stretching, fracture, variable test, welding test and surface treatment respectively, then obtain the effective aluminum alloy materials of auto exhaust.
4. the preparation method of the effective aluminum alloy materials of a kind of auto exhaust according to claim 3, is characterized in that: in described step one, and the temperature of described sintering oven is 450 DEG C ~ 500 DEG C.
5. the preparation method of the effective aluminum alloy materials of a kind of auto exhaust according to claim 3, is characterized in that: in described step 5, leaves standstill 20 minutes ~ 30 minutes to the refine molten mixed solution of step 4.
6. the preparation method of the effective aluminum alloy materials of a kind of auto exhaust according to claim 3, is characterized in that: in described step 8, leaves standstill 20 minutes ~ 30 minutes to the secondary refining melting mixing liquid of step 7.
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| CN201410847954.6A CN104532080A (en) | 2014-12-31 | 2014-12-31 | Aluminum alloy materials for car exhaust pipe and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701843A (en) * | 2017-08-22 | 2018-02-16 | 宁波市鄞州亚大汽车管件有限公司 | Double how curved cooling aluminum pipe |
| CN109680190A (en) * | 2019-01-31 | 2019-04-26 | 东莞市润华铝业有限公司 | A kind of aluminum profile that can improve surface brightness and its preparation process |
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|---|---|---|---|---|
| EP0811700A1 (en) * | 1996-06-04 | 1997-12-10 | Alusuisse Technology & Management AG | Deep drawable and weldable AlMgSi type aluminium alloy |
| CN104018036A (en) * | 2014-06-26 | 2014-09-03 | 龙口市丛林铝材有限公司 | Automobile part aluminum profile and preparation method thereof |
| CN104073698A (en) * | 2014-06-26 | 2014-10-01 | 龙口市丛林铝材有限公司 | 6-series railway vehicle suspension arm aluminum profile and preparation method thereof |
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2014
- 2014-12-31 CN CN201410847954.6A patent/CN104532080A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0811700A1 (en) * | 1996-06-04 | 1997-12-10 | Alusuisse Technology & Management AG | Deep drawable and weldable AlMgSi type aluminium alloy |
| CN104018036A (en) * | 2014-06-26 | 2014-09-03 | 龙口市丛林铝材有限公司 | Automobile part aluminum profile and preparation method thereof |
| CN104073698A (en) * | 2014-06-26 | 2014-10-01 | 龙口市丛林铝材有限公司 | 6-series railway vehicle suspension arm aluminum profile and preparation method thereof |
Non-Patent Citations (1)
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| RAFAEL NUNES ET AL.: "《ASM HAND BOOK, VOLUME 2》", 31 December 1992, article "Properties and Selection:Nonferrous Alloys and Special-Purpose Materials", pages: 42,60 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701843A (en) * | 2017-08-22 | 2018-02-16 | 宁波市鄞州亚大汽车管件有限公司 | Double how curved cooling aluminum pipe |
| CN107701843B (en) * | 2017-08-22 | 2020-02-07 | 宁波市鄞州亚大汽车管件有限公司 | Double-row multi-bend cooling aluminum pipe |
| CN109680190A (en) * | 2019-01-31 | 2019-04-26 | 东莞市润华铝业有限公司 | A kind of aluminum profile that can improve surface brightness and its preparation process |
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Application publication date: 20150422 |
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