CN105256202A - High-plasticity free-cutting light and thin aluminum alloy sheet for air conditioner radiator and manufacturing method for high-plasticity free-cutting light and thin aluminum alloy sheet - Google Patents
High-plasticity free-cutting light and thin aluminum alloy sheet for air conditioner radiator and manufacturing method for high-plasticity free-cutting light and thin aluminum alloy sheet Download PDFInfo
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- CN105256202A CN105256202A CN201510680173.7A CN201510680173A CN105256202A CN 105256202 A CN105256202 A CN 105256202A CN 201510680173 A CN201510680173 A CN 201510680173A CN 105256202 A CN105256202 A CN 105256202A
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Abstract
The invention discloses a high-plasticity free-cutting light and thin aluminum alloy sheet for an air conditioner radiator. According to the aluminum alloy sheet, the ratios of B, Bi, In and other elements are increased properly based on the conventional aluminum alloy ratio, and other elements are combined, so that aluminum alloy has better casting property based on good mechanical property and is fast and stable in molding, capable of being machined into the light and thin aluminum alloy sheet more easily and easy to cut and assemble; furthermore, nano-diamonds with the copper-plated surfaces are added to the alloy, the dispersity and invasion of the nano-diamonds in molten metal are effectively improved, and the stable enhancement effect is achieved; and meanwhile, the heat conducting capacity of the alloy material is improved, and heat exchange is accelerated. The manufactured aluminum alloy sheet is smooth and clean in surface, high in yield and long in service life and has very high market competitiveness in the field of air conditioner radiators.
Description
Technical field
The present invention relates to aluminium alloy heat sink material technical field, particularly relate to a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet and preparation method thereof.
Background technology
The heat dispersion of air conditioner heat radiator is the important factor affecting air-conditioning work performance, the material of its radiating fin adopted directly determines thermal capacity and the thermal transpiration ability of radiator element, the metal species possessing excellent heat dispersion performance is more, but aluminum alloy heat sink is the kind of wherein a kind of part-time economy and practicality, the most common on air-conditioning heat dissipation material market.
Along with the miniaturization of domestic air conditioning and the market requirement of lower production cost, require pitch smaller between fin thinner, wing, shaping faster, this just requires that aluminum alloy materials has higher hardness possessing on good heat exchange performance basis, and ductility is good, smoothly shaping, not easily to crack etc. performance, therefore, need the more high performance aluminum alloy materials of development, to meet the day by day vigorous market requirement.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, in this aluminum alloy sheet, the weight percentage of each component is: Si:1.5-2.0%, B:0.01-0.02%, Mg:3.5-4.5%, Cr:0.1-0.15%, Mn:2.5-3.0%, Bi:0.1-0.2%, In:0.1-0.2%, Cu:4.5-5.0%, composite fortifier: 0.1-0.2%, and surplus is Al and inevitable impurity element.
Described a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, described composite fortifier is made up of following raw material: Nano diamond, concentrated hydrochloric acid, sensitizing solution, activation solution, commercially available chemical bronze plating liquid, solid content be 25% nano titanic oxide sol, deionized water appropriate, its preparation method is: first dropped in concentrated hydrochloric acid by Nano diamond after being uniformly mixed 10-15min and filter, fully washing to remove after residual acid completely with deionized water drops in sensitizing solution, filter after induction stirring mixing 20-30min, gained powder is fully washed to neutrality, then powder is added in activation solution again, induction stirring mixing 20-30min, subsequent filtration, powder is washed to neutrality, subsequently by powder complete drying, removing moisture, finally gained powder is dropped in chemical bronze plating liquid, and add nano titanic oxide sol, filter after induction stirring hybrid reaction 20-30min, namely described copper coating Nano diamond composite fortifier is obtained after products therefrom vacuum-drying.
Described a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, described sensitizing solution is by the SnCl of HCl and 0.1mol/L of 0.1mol/L
2formulated; Activation solution is the PdCl of 0.25g/L
2solution.
Described a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, the consumption of described Nano diamond in concentrated hydrochloric acid, sensitizing solution, activation solution is 1.0-5.0%(W/V); Consumption in chemical bronze plating liquid is 1.5-2.5%(W/V); Consumption in nano titanic oxide sol is 0.05-0.1%(W/V).
The preparation method of described a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, described preparation method is:
(1) dropped in smelting furnace according to quality proportioning by each raw material except composite fortifier, under 680-720 DEG C of condition, add composite fortifier after melting 4-5h, limit edged stirs, and continues insulation 30-40min after adding;
(2) by the liquation casting of step (1) gained, teeming temperature is 640-680 DEG C, sends in homogenizing stove and be incubated 4-6h when it is cooled to 420-450 DEG C;
(3) 4-5 step (2) gained base substrate being carried out be cold-rolled to institute's finished product desired thickness doubly after carry out high temperature annealing, annealing temperature is 550-600 DEG C, and annealing time is 10-15h;
(4) anneal is carried out after step (3) slab after high temperature annealing being continued to be cold-rolled to finished product thickness, namely process obtains described aluminum alloy sheet after terminating rear naturally cooling, and annealing conditions is wherein: under 300-350 DEG C of condition, be incubated 5-10h again after being first incubated 6-8h under 150-200 DEG C of condition.
Aluminum alloy sheet prepared by the present invention suitably adds B in conventional aluminum alloys proportioning, Bi, the proportioning of the elements such as In, again in conjunction with other elements, on the basis making this aluminium alloy maintain good mechanical property, castability is better, shaping fast and stable, be easier to the alloy slice being processed into light and thin type, and be easy to cut assembling, the Nano diamond of the copper coating added in alloy in addition effectively raises the dispersiveness of Nano diamond in molten metal and wetting property, thus reach stable reinforced effects, the capacity of heat transmission of alloy material can also be improved simultaneously, accelerate thermal exchange, aluminum alloy sheet surfacing prepared by the present invention is bright and clean, yield rate is high, long service life, the market competitiveness is had in air conditioner heat radiator field.
Embodiment
In this embodiment aluminum alloy sheet, the weight percentage of each component is: Si:1.5%, B:0.01%, Mg:3.5%, Cr:0.1%, Mn:2.5%, Bi:0.1%, In:0.1%, Cu:4.5%, composite fortifier: 0.1%, and surplus is Al and inevitable impurity element.
Wherein composite fortifier is made up of following raw material: Nano diamond, concentrated hydrochloric acid, sensitizing solution, activation solution, commercially available chemical bronze plating liquid, solid content be 25% nano titanic oxide sol, deionized water appropriate, its preparation method is: first dropped in concentrated hydrochloric acid by Nano diamond after being uniformly mixed 10min and filter, fully washing to remove after residual acid completely with deionized water drops in sensitizing solution, filter after induction stirring mixing 20min, gained powder is fully washed to neutrality, then powder is added in activation solution again, induction stirring mixing 20min, subsequent filtration, powder is washed to neutrality, subsequently by powder complete drying, removing moisture, finally gained powder is dropped in chemical bronze plating liquid, and add nano titanic oxide sol, filter after induction stirring hybrid reaction 20min, namely described copper coating Nano diamond composite fortifier is obtained after products therefrom vacuum-drying.
Wherein sensitizing solution is formulated by the SnCl2 of HCl and 0.1mol/L of 0.1mol/L; Activation solution is the PdCl2 solution of 0.25g/L.
Wherein the consumption of Nano diamond in concentrated hydrochloric acid, sensitizing solution, activation solution is 1.0%(W/V); Consumption in chemical bronze plating liquid is 1.5%(W/V); Consumption in nano titanic oxide sol is 0.05%(W/V).
The preparation method of this aluminum alloy sheet is:
(1) dropped in smelting furnace according to quality proportioning by each raw material except composite fortifier, under 680 DEG C of conditions, add composite fortifier after melting 4h, limit edged stirs, and continues insulation 30min after adding;
(2) by the liquation casting of step (1) gained, teeming temperature is 640 DEG C, sends in homogenizing stove and be incubated 4h when it is cooled to 420 DEG C;
(3) carry out high temperature annealing after step (2) gained base substrate being carried out be cold-rolled to 4 times of institute's finished product desired thickness, annealing temperature is 550 DEG C, and annealing time is 10h;
(4) anneal is carried out after step (3) slab after high temperature annealing being continued to be cold-rolled to finished product thickness, namely process obtains described aluminum alloy sheet after terminating rear naturally cooling, and annealing conditions is wherein: under 300 DEG C of conditions, be incubated 5h again after being first incubated 6h under 150 DEG C of conditions.
Get the sample that alloy slice prepared by this embodiment makes 1mm thick to test, the performance test results of this aluminum alloy flake is:
Young's modulus: 108.5GPa; Tensile strength: 182.4MPa; Elongation: 20.5%; Erichsen number: 7.1mm; Unit elongation: 14.2%.
Claims (5)
1. an air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet, it is characterized in that, in this aluminum alloy sheet, the weight percentage of each component is: Si:1.5-2.0%, B:0.01-0.02%, Mg:3.5-4.5%, Cr:0.1-0.15%, Mn:2.5-3.0%, Bi:0.1-0.2%, In:0.1-0.2%, Cu:4.5-5.0%, composite fortifier: 0.1-0.2%, and surplus is Al and inevitable impurity element.
2. a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet as claimed in claim 1, is characterized in that: described composite fortifier is made up of following raw material: Nano diamond, concentrated hydrochloric acid, sensitizing solution, activation solution, commercially available chemical bronze plating liquid, solid content be 25% nano titanic oxide sol, deionized water appropriate, its preparation method is: first dropped in concentrated hydrochloric acid by Nano diamond after being uniformly mixed 10-15min and filter, fully washing to remove after residual acid completely with deionized water drops in sensitizing solution, filter after induction stirring mixing 20-30min, gained powder is fully washed to neutrality, then powder is added in activation solution again, induction stirring mixing 20-30min, subsequent filtration, powder is washed to neutrality, subsequently by powder complete drying, removing moisture, finally gained powder is dropped in chemical bronze plating liquid, and add nano titanic oxide sol, filter after induction stirring hybrid reaction 20-30min, namely described copper coating Nano diamond composite fortifier is obtained after products therefrom vacuum-drying.
3. a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet as claimed in claim 2, it is characterized in that, described sensitizing solution is by the SnCl of HCl and 0.1mol/L of 0.1mol/L
2formulated; Activation solution is the PdCl of 0.25g/L
2solution.
4. a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet as claimed in claim 2, it is characterized in that, the consumption of described Nano diamond in concentrated hydrochloric acid, sensitizing solution, activation solution is 1.0-5.0%(W/V); Consumption in chemical bronze plating liquid is 1.5-2.5%(W/V); Consumption in nano titanic oxide sol is 0.05-0.1%(W/V).
5. the preparation method of a kind of air conditioner heat radiator high-ductility Cutting free light and thin type aluminum alloy sheet as claimed in claim 1, it is characterized in that, described preparation method is:
(1) dropped in smelting furnace according to quality proportioning by each raw material except composite fortifier, under 680-720 DEG C of condition, add composite fortifier after melting 4-5h, limit edged stirs, and continues insulation 30-40min after adding;
(2) by the liquation casting of step (1) gained, teeming temperature is 640-680 DEG C, sends in homogenizing stove and be incubated 4-6h when it is cooled to 420-450 DEG C;
(3) 4-5 step (2) gained base substrate being carried out be cold-rolled to institute's finished product desired thickness doubly after carry out high temperature annealing, annealing temperature is 550-600 DEG C, and annealing time is 10-15h;
(4) anneal is carried out after step (3) slab after high temperature annealing being continued to be cold-rolled to finished product thickness, namely process obtains described aluminum alloy sheet after terminating rear naturally cooling, and annealing conditions is wherein: under 300-350 DEG C of condition, be incubated 5-10h again after being first incubated 6-8h under 150-200 DEG C of condition.
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|---|---|---|---|
| CN201510680173.7A CN105256202A (en) | 2015-10-20 | 2015-10-20 | High-plasticity free-cutting light and thin aluminum alloy sheet for air conditioner radiator and manufacturing method for high-plasticity free-cutting light and thin aluminum alloy sheet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908033A (en) * | 2016-06-17 | 2016-08-31 | 安徽天祥空调科技有限公司 | High-performance thin-and-light type aluminum alloy sheet for vehicle-mounted heat exchanger and preparation method thereof |
| CN106048336A (en) * | 2016-06-17 | 2016-10-26 | 安徽天祥空调科技有限公司 | Antibacterial anti-corrosion thin and light aluminum alloy sheet for evaporator and preparation method of antibacterial anti-corrosion thin and light aluminum alloy sheet |
| CN106350709A (en) * | 2016-09-30 | 2017-01-25 | 柳州增程材料科技有限公司 | Preparation method aluminum-magnesium alloy |
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| CN106048336A (en) * | 2016-06-17 | 2016-10-26 | 安徽天祥空调科技有限公司 | Antibacterial anti-corrosion thin and light aluminum alloy sheet for evaporator and preparation method of antibacterial anti-corrosion thin and light aluminum alloy sheet |
| CN106350709A (en) * | 2016-09-30 | 2017-01-25 | 柳州增程材料科技有限公司 | Preparation method aluminum-magnesium alloy |
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Application publication date: 20160120 |