CN101660883B - Manufacturing method of vehicle aluminum alloy radiating fin - Google Patents
Manufacturing method of vehicle aluminum alloy radiating fin Download PDFInfo
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Abstract
The present invention relates to the technical field of manufacturing radiating fins, in particular to a manufacturing method of a vehicle aluminum alloy radiating fin. The vehicle aluminum alloy radiating fin is manufactured in the mode of heating extrusion; aluminum alloy is obtained by aluminum liquid regeneration smelting, wherein, smelted aluminum liquid contains 85% of aluminum ingot A00 and residual leftover material in percentage by weight; generated aluminum alloy comprises the following components in percentage by weight: 0.325-0.355% of silicon, 0.50-0.54% of magnesium, 0.10-0.30% of iron, less than 0.02% of copper, less than 0.02% of manganese, less than 0.02% of chromium, less than 0.02% of zinc, less than or equal to 0.03% of titanium, less than or equal to 0.05% of other single impurity by control, less than 0.15% of total impurities, and the balance aluminum. The manufacturing method of a vehicle aluminum alloy radiating fin provided by the present invention has the beneficial effect of simple technology and low cost; in addition, the invention fully utilizes leftover and accelerates industry development, each performance parameter of the manufactured radiating fin is relatively improved, so that the radiating fin has favorable performance.
Description
Technical field:
The present invention relates to the fin manufacture technology field, refer in particular to a kind of production method that is used to make vehicle aluminum alloy radiating fin.
Background technology:
At present, produce vehicle aluminum alloy radiating fin and adopt aluminium alloy 6060 national standards (GB/T6892-2006) to carry out extrusion modling, there is following defective in products obtained therefrom: 1, bad mechanical property, and as tensile strength (140Rm/Mpa), surrender degree (100R
0.2/ Mpa), hardness (9～12 degree) etc. a little less than; 2, the poor electric conductivity of product is low as conductance; 3, a little less than the poor plasticity of product, the combination property.Take this, the applicant is because the disappearance of above-mentioned known production vehicle aluminum alloy radiating fin, the spirit of adhering to the research innovation, keeping on improving is utilized its professional eye and professional knowledge, works out a kind of production method that meets the vehicle aluminum alloy radiating fin of industry utilization.
Summary of the invention:
The object of the invention is to provide a kind of production method of vehicle aluminum alloy radiating fin, and gained fin various performance parameters improves function admirable relatively.
The present invention adopts following technical scheme:
A kind of production method of vehicle aluminum alloy radiating fin, make with the heating fashion of extrusion, aluminium alloy adopts aluminium liquid regeneration molten cast to obtain, and wherein contains 85% the aluminium ingot A00 and the leftover pieces of surplus in the fusion-casting process aluminium liquid by weight, and the aluminium alloy composition of generation is by weight as follows:
Silicon (Si): 0.325-0.355% magnesium (Mg): 0.50-0.54%
Iron (Fe): 0.10-0.30% copper (Cu):＜0.02%
Manganese (Mn):＜0.02% chromium (Cr):＜0.02%
Zinc (Zn):＜0.02% titanium (Ti) :≤0.03%
Other single Control of Impurities are≤0.05%, and impurity amounts to less than 0.15%, the aluminium surplus.
Described founding is as follows:
1) smelting temperature 740-755 ℃, melting duration≤4 hour
2) refining temperature 740-755 ℃, the melting duration is 25 minutes
3) suitable, the inverse time stirring of the permanent magnetism mixer that adopts Japan to make is stirred 3 times
4) left standstill duration 10 minutes, the liquid aluminum film must not damage
5) aluminium liquid is purified before the casting, adopts 40 height of eye temperature ceramic filter plates to filter
6) the casting temperature of aluminum liquid is 700-710 ℃, adopts a constant speed isothermal casting
7) the casting coolant water temperature is 25-30 ℃, the coolant water temperature unanimity.
Described extruding is to adopt 1000T forward extrusion machine, and the aluminium alloy heating and temperature control exists: 500-520 ℃, and temperature retention time 〉=4h, the mold heated temperature is controlled at: 490-520 ℃, temperature retention time 〉=1.5h, recipient heating-up temperature: 390-420 ℃, extrusion speed is controlled at 6-7m/min, at the uniform velocity extruding, drop temperature: 505-525 ℃, to quench to adopt and push press quenching, the type of cooling is the high wind cooling, cooling velocity is controlled at 〉=5 ℃/S, is cooled to below 150 ℃ in 3 minutes.
The invention has the beneficial effects as follows that technology is simple, cost is low, makes full use of leftover pieces, promotes industry development, and the fin various performance parameters of being produced improves relatively, function admirable.Conductance reaches about 52%, and mechanical performance of products strengthens, and stretching resistance, yield strength, hardness (7～10 degree) etc. all reach the properties of product requirement, have improved the plasticity of product, and combination property strengthens, and has realized the optimum balance of various characteristics.
Description of drawings:
Accompanying drawing 1 is the structural representation of wherein a kind of vehicle aluminum alloy radiating fin of the present invention's production.
The specific embodiment:
The production method of vehicle aluminum alloy radiating fin provided by the invention, be to make with the heating fashion of extrusion, aluminium alloy adopts aluminium liquid regeneration molten cast to obtain, and wherein contains 85% the aluminium ingot A00 and the leftover pieces of surplus in the fusion-casting process aluminium liquid by weight, and the aluminium alloy composition of generation is by weight as follows:
Silicon (Si): 0.325-0.355% magnesium (Mg): 0.50-0.54%
Iron (Fe): 0.10-0.30% copper (Cu):＜0.02%
Manganese (Mn):＜0.02% chromium (Cr):＜0.02%
Zinc (Zn):＜0.02% titanium (Ti) :≤0.03%
Other single Control of Impurities are≤0.05%, and trace element amounts to less than 0.15%, the aluminium surplus.
Founding is as follows:
1) smelting temperature 740-755 ℃, melting duration≤4 hour
2) refining temperature 740-755 ℃, the melting duration is 25 minutes
3) suitable, the inverse time stirring of the permanent magnetism mixer that adopts Japan to make is stirred 3 times
4) left standstill duration 10 minutes, the liquid aluminum film must not damage
5) aluminium liquid is purified before the casting, adopts 40 height of eye temperature ceramic filter plates to filter
6) the casting temperature of aluminum liquid is 700-710 ℃, adopts a constant speed isothermal casting
7) the casting coolant water temperature is 25-30 ℃, the coolant water temperature unanimity.
Extrusion process is to adopt 1000T forward extrusion machine, and the aluminium alloy heating and temperature control exists: 500-520 ℃, and temperature retention time 〉=4h, the mold heated temperature is controlled at: 490-520 ℃, temperature retention time 〉=1.5h, recipient heating-up temperature: 390-420 ℃, extrusion speed is controlled at 6-7m/min, at the uniform velocity extruding, drop temperature: 505-525 ℃, to quench to adopt and push press quenching, the type of cooling is the high wind cooling, cooling velocity is controlled at 〉=5 ℃/S, is cooled to below 150 ℃ in 3 minutes.
Embodiment:
With product shown in Figure 1 is example: because product adds and easily cracks man-hour, the tongue of product is bigger simultaneously, causes mould to rupture in extrusion process easily, so the hardness of product can not be too high, adopt 6060 alloys, Si, Mg content are controlled at lower limit, the also strict control of Fe content; Adopt 40 height of eye temperature ceramic filter plates to filter, thoroughly slagging-off degasification when melting, the bar of casting makes its grain refinement by homogenizing annealing, and composition is even.Strict control ingot casting, mold temperature and the time in extrusion process, by the aging furnace timeliness, strict control time and temperature make its hardness reach standard by the product after the extrusion modling.
Concrete operation method:
Aluminium liquid regeneration melting
1, batching:
Remelting accounts for 85% with aluminium ingot A00 (98.8%), and all the other are leftover pieces, and leftover pieces are silico-aluminum (silicon content is 12.5%), and 5 titaniums, 1 boron one-level aluminium boron titanium silk is adopted in refinement.
2, the following part by weight of the chemical analysis of the aluminium alloy of Sheng Chenging control:
Silicon (Si): 0.325-0.355% magnesium (Mg): 0.50-0.54%
Iron (Fe): 0.10-0.30% copper (Cu):＜0.02%
Manganese (Mn):＜0.02% chromium (Cr):＜0.02%
Zinc (Zn):＜0.02% titanium (Ti) :≤0.03%
Other single Control of Impurities are≤0.05%, and trace element amounts to less than 0.15%, the aluminium surplus.
As the silicon (Si) of controlling the gained aluminium alloy is 0.328%, magnesium (Mg) is 0.50%, iron (Fe) is 0.15%, and copper (Cu) is 0.01%, and manganese (Mn) is 0.015%, chromium (Cr) is 0.013%, zinc (Zn) is 0.016%, and titanium (Ti) is 0.03%, and other single Control of Impurities are≤0.05%, trace element amounts to less than 0.15%, the aluminium surplus.
3, founding
1) smelting temperature 740-755 ℃, melting duration≤4 hour, during as 750 ℃ of smelting temperatures, the melting duration is 3.5 hours;
2) refining temperature 740-755 ℃, the melting duration is 25 minutes, and it is to carry out on the melting basis before, and as 755 ℃ of refining temperatures, the melting duration is 25 minutes, makes the further melting of aluminium liquid;
3) suitable, the inverse time stirring of the permanent magnetism mixer that adopts Japan to make is stirred 3 times;
4) left standstill duration 10 minutes, the liquid aluminum film must not damage;
5) aluminium liquid is purified before the casting, adopts 40 height of eye temperature ceramic filter plates to filter;
6) the casting temperature of aluminum liquid is 700-710 ℃, adopts a constant speed isothermal casting;
7) the casting coolant water temperature is 25-30 ℃, the coolant water temperature unanimity.
The extruding aspect:
Adopt 1000T forward extrusion machine, the aluminium alloy heating and temperature control exists: 500-520 ℃, as get 500 ℃, 510 ℃, 515 ℃; Temperature retention time 〉=4h, the mold heated temperature is controlled at: 490-520 ℃, temperature retention time 〉=1.5h, recipient heating-up temperature: 390-420 ℃, extrusion speed is controlled at 6-7m/min, at the uniform velocity extruding, drop temperature: 505-525 ℃, to quench to adopt and push press quenching, the type of cooling is the high wind cooling, cooling velocity is controlled at 〉=5 ℃/S, is cooled to below 150 ℃ in 3 minutes.
The timeliness aspect:
The product that squeezes out is carried out Ageing Treatment, and aging temp is controlled at 200 ± 5 ℃, temperature retention time 3h, and hardness (HW) reaches the 7-10 degree.
Through test manufacture and batch process and a large amount of production, gained fin various performance parameters improves function admirable relatively.The product conductance reaches about 52%, and mechanical performance of products strengthens, and stretching resistance, yield strength, hardness (7～10 degree) etc. all reach the properties of product requirement, have improved the plasticity of product, and combination property strengthens, and has realized the optimum balance of various characteristics; This has proved feasibility of the present invention.
Claims (2)
1. the production method of a vehicle aluminum alloy radiating fin, it is characterized in that: make with the heating fashion of extrusion, aluminium alloy adopts aluminium liquid regeneration molten cast to obtain, and wherein contains 85% the aluminium ingot A00 and the leftover pieces of surplus in the fusion-casting process aluminium liquid by weight, and the aluminium alloy composition of generation is by weight as follows:
Silicon (Si): 0.325-0.355% magnesium (Mg): 0.50-0.54%
Iron (Fe): 0.10-0.30% copper (Cu):＜0.02%
Manganese (Mn):＜0.02% chromium (Cr):＜0.02%
Zinc (Zn):＜0.02% titanium (Ti) :≤0.03%
Other single Control of Impurities are≤0.05%, and impurity amounts to less than 0.15%, the aluminium surplus.
2. the production method of a kind of vehicle aluminum alloy radiating fin according to claim 1, it is characterized in that: extruding is to adopt 1000T forward extrusion machine, the aluminium alloy heating and temperature control exists: 500-520 ℃, temperature retention time 〉=4h, the mold heated temperature is controlled at: 490-520 ℃, temperature retention time 〉=1.5h, recipient heating-up temperature: 390-420 ℃, extrusion speed is controlled at 6-7m/min, at the uniform velocity extruding, drop temperature: 505-525 ℃, quench and adopt the extruding press quenching, the type of cooling is the high wind cooling, and cooling velocity is controlled at 〉=5 ℃/S, is cooled to below 150 ℃ in 3 minutes.
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| CN101864532B (en) * | 2010-05-17 | 2011-09-21 | 盐城市赛瑞特半导体照明有限公司 | Superconductive aluminum-based alloy for LED heat dissipation device |
| CN102358927B (en) * | 2011-11-11 | 2012-12-26 | 郴州市强旺新金属材料有限公司 | Aluminium manganese alloy for heat-radiation soft aluminium tube |
| CN102618738B (en) * | 2012-04-24 | 2014-07-09 | 东莞市奥达铝业有限公司 | Smelting process for aluminum-silicon master alloy |
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| CN103725908A (en) * | 2014-01-13 | 2014-04-16 | 南部县德美金属有限公司 | Aluminum alloy casting process |
| CN106014594A (en) * | 2016-06-17 | 2016-10-12 | 安徽天祥空调科技有限公司 | Integrally formed water chamber for automobile radiator |
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| CN112143946A (en) * | 2020-09-11 | 2020-12-29 | 湖南海铝精密工业股份有限公司 | High-thermal-conductivity high-strength aluminum alloy material, preparation method thereof and application thereof in radiator |
| CN112453095B (en) * | 2020-11-13 | 2023-03-31 | 辽宁忠旺集团有限公司 | Process for reducing coarse crystal layers at free ends of profiles for tracks |
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| CN113976652A (en) * | 2021-09-27 | 2022-01-28 | 营口忠旺铝业有限公司 | Extrusion production process of wide radiator |
| CN114635066B (en) * | 2022-03-23 | 2023-03-31 | 山东博源精密机械有限公司 | Al-Si-Fe system motor rotor alloy and preparation method and application thereof |
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