CN102492878A - Production method for aluminum alloy bicycle frame pipe for electric bicycle - Google Patents
Production method for aluminum alloy bicycle frame pipe for electric bicycle Download PDFInfo
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- CN102492878A CN102492878A CN2011103609944A CN201110360994A CN102492878A CN 102492878 A CN102492878 A CN 102492878A CN 2011103609944 A CN2011103609944 A CN 2011103609944A CN 201110360994 A CN201110360994 A CN 201110360994A CN 102492878 A CN102492878 A CN 102492878A
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Abstract
The invention discloses a production method for an aluminum alloy bicycle frame pipe for an electric bicycle. The aluminum alloy comprises, by weight, 2-3% of Si, 2-5% of Mg, 0.5-1% of Zn, 0.2-1% of Mn, 0.3-0.7% of Cu, and the balance of Al and other inevitable impurities. The production method comprises the following steps: (1) smelting the aluminum alloy according to the components and casting into a bar; (2) carrying out a homogenizing annealing treatment; (3) discharging the bar from a furnace after carrying out the homogenizing annealing treatment, cooling to a room temperature, then placing the bar in a heating furnace to heat to the temperature of 430-450 DEG C, and holding the temperature for 3 hours; concurrently heating an extrusion mold to the temperature of 350-380 DEG C, and heating an extrusion material cylinder to the temperature of 350-380 DEG C; (4) placing the heated aluminum alloy bar into an extruder to extrude into the bicycle frame pipe profile, wherein the extrusion speed is 2-7 m/min.
Description
Technical field
The present invention relates to the electric bicycle field, particularly a kind of electric bicycle is with the working method of aluminium alloy bicycle frame pipe.
Background technology
Along with the serious day by day problem of blocking up in the quickening of the anxiety of the energy and people's rhythm of life and the city, electric bicycle more and more receives people's favor.Its speed is fast than ordinary bicycle, uses more flexibly than automobile, and it is wider to adapt to road, therefore, has become a kind of important vehicles of people's trip.
At present, the electronic owning amount voluntarily of China is very big, and people also improve each item performance of electric bicycle, and wherein important improvement relates to further and cutting down the consumption of energy, and improves the actual service life of single charge.The more improvement that relates to rechargeable battery in these researchs.And it is few in number to relate to the improved report of frame materials.Because electric bicycle rapid speed; And have structures such as store battery and motor and cause car body heavier, this requires the frame materials of conventional electric bike to have higher strength and stiffness, therefore; Usually all by the steel manufacturing; But this causes car body heavier undoubtedly, and is higher by the energy consumption of the heavier store battery that causes of car body self, has shortened the actual service life of single charge.
Therefore, need the frame materials of the new electric bicycle of exploitation badly, to substitute traditional steel.Duraluminum is a most popular alloy on the contemporary industry engineering, and it is widely-used on ordinary bicycle, but because the singularity of electric bicycle can not directly be applied to electric bicycle with the duraluminum that is used for ordinary bicycle.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide a kind of working method with higher mechanical properties, in light weight, electric bicycle that price is low with the aluminium alloy bicycle frame pipe.
For realizing above-mentioned purpose, the present invention realizes through following technical proposals:
A kind of electric bicycle is with the working method of aluminium alloy bicycle frame pipe, and said duraluminum is made up of following component by weight percentage: 2-3%Si, 2-5%Mg; 0.5-1%Zn, 0.2-1%Mn, 0.3-0.7%Cu; Surplus Al and unavoidable impurities, said working method comprises the steps:
(1) according to the said components smelting aluminium alloy and pour into bar;
(2) the rods and bars of aluminium alloy surface peeling that step (1) is obtained is handled, and puts into process furnace afterwards and is heated to 460-480 ℃, is incubated 8-12 hour and carries out the homogenizing annealing processing;
(3) homogenizing annealing is come out of the stove after handling, and air cooling is put into process furnace again and is heated to 430-450 ℃ to room temperature, is incubated 3 hours; Simultaneously extrusion mould is heated to 350-380 ℃, the extruding barrel is heated to 350-380 ℃; (4) rods and bars of aluminium alloy of above-mentioned heating is put into extrusion machine and be squeezed into the vehicle frame pipe profile, extrusion speed is 2-7m/min.
The present invention has following beneficial effect:
1. the duraluminum of the present invention's selection is after bakingout process, and over-all properties no-floats such as the intensity of product and plasticity can obtain the mechanical property that electric bicycle vehicle frame pipe needs, and are applicable to the needs of producing vehicle frame pipe and vehicle frame.And vehicle frame pipe and the vehicle frame produced are in light weight, and specific tenacity high (intensity of duraluminum is high with the ratio of quality) has certain supporting capacity.Young's modulus is little, good rigidly, and seismic force is strong, and life-time service is not yielding.Product bright in colour attractive in appearance, noble elegant, exquisite in texture, elegant in appearance have a feeling of high class.And aluminium is the environmental protection non-ferrous metal, good environmental protection, environmentally safe.
2. in the method for the present invention processing is removed the peel on the magnesium ingot surface, improved quality product.Homogenizing annealing processing, extruding and thermal treatment are effectively combined, and through the strictness control to processing condition, make the The comprehensive performance uniformity, the qualification rate of product is high.Production efficiency is high, is fit to suitability for industrialized production.
Embodiment
Embodiment one
A kind of electric bicycle is with the working method of aluminium alloy bicycle frame pipe, and said duraluminum is made up of following component by weight percentage: 2%Si, 5%Mg; 0.5%Zn, 1%Mn, 0.3%Cu; Surplus Al and unavoidable impurities, said working method comprises the steps:
(1) according to the said components smelting aluminium alloy and pour into bar;
(2) the rods and bars of aluminium alloy surface peeling that step (1) is obtained is handled, and puts into process furnace afterwards and is heated to 460 ℃, is incubated 12 hours and carries out the homogenizing annealing processing;
(3) homogenizing annealing is come out of the stove after handling, and air cooling is put into process furnace again and is heated to 430 ℃ to room temperature, is incubated 3 hours; Simultaneously extrusion mould is heated to 380 ℃, the extruding barrel is heated to 380 ℃;
(4) rods and bars of aluminium alloy of above-mentioned heating is put into extrusion machine and be squeezed into the vehicle frame pipe profile, extrusion speed is 2m/min.
Embodiment two
A kind of electric bicycle is with the working method of aluminium alloy bicycle frame pipe, and said duraluminum is made up of following component by weight percentage: 3%Si, 2%Mg; 1%Zn, 0.2%Mn, 0.7%Cu; Surplus Al and unavoidable impurities, said working method comprises the steps:
(1) according to the said components smelting aluminium alloy and pour into bar;
(2) the rods and bars of aluminium alloy surface peeling that step (1) is obtained is handled, and puts into process furnace afterwards and is heated to 480 ℃, is incubated 8 hours and carries out the homogenizing annealing processing;
(3) homogenizing annealing is come out of the stove after handling, and air cooling is put into process furnace again and is heated to 450 ℃ to room temperature, is incubated 3 hours; Simultaneously extrusion mould is heated to 350 ℃, the extruding barrel is heated to 350 ℃;
(4) rods and bars of aluminium alloy of above-mentioned heating is put into extrusion machine and be squeezed into the vehicle frame pipe profile, extrusion speed is 7m/min.
Embodiment three
A kind of electric bicycle is with the working method of aluminium alloy bicycle frame pipe, and said duraluminum is made up of following component by weight percentage: 2.5%Si, 3.5%Mg; 0.8%Zn, 0.6%Mn, 0.5%Cu; Surplus Al and unavoidable impurities, said working method comprises the steps:
(1) according to the said components smelting aluminium alloy and pour into bar;
(2) the rods and bars of aluminium alloy surface peeling that step (1) is obtained is handled, and puts into process furnace afterwards and is heated to 470 ℃, is incubated 10 hours and carries out the homogenizing annealing processing;
(3) homogenizing annealing is come out of the stove after handling, and air cooling is put into process furnace again and is heated to 440 ℃ to room temperature, is incubated 3 hours; Simultaneously extrusion mould is heated to 370 ℃, the extruding barrel is heated to 370 ℃;
(4) rods and bars of aluminium alloy of above-mentioned heating is put into extrusion machine and be squeezed into the vehicle frame pipe profile, extrusion speed is 5m/min.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (1)
1. an electric bicycle is characterized in that with the working method of aluminium alloy bicycle frame pipe said duraluminum is made up of following component by weight percentage: 2-3%Si; 2-5%Mg; 0.5-1%Zn, 0.2-1%Mn, 0.3-0.7%Cu; Surplus Al and unavoidable impurities, said working method comprises the steps:
(1) according to the said components smelting aluminium alloy and pour into bar;
(2) the rods and bars of aluminium alloy surface peeling that step (1) is obtained is handled, and puts into process furnace afterwards and is heated to 460-480 ℃, is incubated 8-12 hour and carries out the homogenizing annealing processing;
(3) homogenizing annealing is come out of the stove after handling, and air cooling is put into process furnace again and is heated to 430-450 ℃ to room temperature, is incubated 3 hours; Simultaneously extrusion mould is heated to 350-380 ℃, the extruding barrel is heated to 350-380 ℃;
(4) rods and bars of aluminium alloy of above-mentioned heating is put into extrusion machine and be squeezed into the vehicle frame pipe profile, extrusion speed is 2-7m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103609944A CN102492878A (en) | 2011-11-15 | 2011-11-15 | Production method for aluminum alloy bicycle frame pipe for electric bicycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103609944A CN102492878A (en) | 2011-11-15 | 2011-11-15 | Production method for aluminum alloy bicycle frame pipe for electric bicycle |
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| CN102492878A true CN102492878A (en) | 2012-06-13 |
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| CN2011103609944A Pending CN102492878A (en) | 2011-11-15 | 2011-11-15 | Production method for aluminum alloy bicycle frame pipe for electric bicycle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418014A (en) * | 2011-11-17 | 2012-04-18 | 张洁 | Aluminum alloy for frame pipe of electric bicycle |
| CN104324968A (en) * | 2014-09-09 | 2015-02-04 | 福建省闽发铝业股份有限公司 | Extrusion method of hollow aluminum sections |
| CN104668300A (en) * | 2015-01-30 | 2015-06-03 | 深圳市江为五金螺丝有限公司 | Processing technology of aluminum alloy extrusion part |
| CN105861896A (en) * | 2016-05-18 | 2016-08-17 | 太仓鸿鑫精密压铸有限公司 | Manufacturing method for aluminum alloy material for automobile |
| CN107775287A (en) * | 2017-10-24 | 2018-03-09 | 宝鸡金恒瑞金属科技有限公司 | A kind of preparation method of titanium alloy bicycle frame |
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| CA1176084A (en) * | 1980-03-05 | 1984-10-16 | Wolfgang Gruhl | Process for using scrap aluminum materials |
| US20020043309A1 (en) * | 2000-06-27 | 2002-04-18 | Spanjers Martinus Godefridus Johannes | Aluminum casting alloy |
| WO2003066927A1 (en) * | 2002-02-08 | 2003-08-14 | Nichols Aluminium | Method and apparatus for producing a solution heat treated sheet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418014A (en) * | 2011-11-17 | 2012-04-18 | 张洁 | Aluminum alloy for frame pipe of electric bicycle |
| CN104324968A (en) * | 2014-09-09 | 2015-02-04 | 福建省闽发铝业股份有限公司 | Extrusion method of hollow aluminum sections |
| CN104324968B (en) * | 2014-09-09 | 2016-06-15 | 福建省闽发铝业股份有限公司 | A kind of pressing method of hollow aluminum section |
| CN104668300A (en) * | 2015-01-30 | 2015-06-03 | 深圳市江为五金螺丝有限公司 | Processing technology of aluminum alloy extrusion part |
| CN105861896A (en) * | 2016-05-18 | 2016-08-17 | 太仓鸿鑫精密压铸有限公司 | Manufacturing method for aluminum alloy material for automobile |
| CN107775287A (en) * | 2017-10-24 | 2018-03-09 | 宝鸡金恒瑞金属科技有限公司 | A kind of preparation method of titanium alloy bicycle frame |
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Application publication date: 20120613 |