CN109913715A - It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame - Google Patents

It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame Download PDF

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CN109913715A
CN109913715A CN201910305918.XA CN201910305918A CN109913715A CN 109913715 A CN109913715 A CN 109913715A CN 201910305918 A CN201910305918 A CN 201910305918A CN 109913715 A CN109913715 A CN 109913715A
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alloy
aluminium
melting
solar energy
aluminum
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崔建国
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Suzhou Shangfei Automobile Parts Co Ltd
WUJIANG XINSHEN ALUMINUM TECHNOLOGY DEVELOPMENT Co Ltd
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Suzhou Shangfei Automobile Parts Co Ltd
WUJIANG XINSHEN ALUMINUM TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The invention discloses a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, it is related to field of aluminum alloys, it aims to solve the problem that during producing solar energy frame part with aluminum profile, the problem of product surface quality difference, technical points comprise the following production steps that melting: extracting aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, then magnesium ingot is added by component proportion into furnace, and it stirs, continue melting, then it skims;Refining: furnace temperature is adjusted to refining temperature, is skimmed;Casting: it feeds silk refinement online using aluminium titanium boron wire, obtains casting rod;Squeeze: heating aluminium alloy cast rod and extrusion die are squeezed, and aluminium alloy extrusions is obtained;Cutting: aluminium alloy extrusions is cut into pieces by certain length, has achieved the purpose that improve aluminium alloy extrusions production capacity and surface quality.

Description

It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame
Technical field
The present invention relates to field of aluminum alloys, more specifically, it relates to a kind of for producing the aluminium alloy of solar energy frame The preparation method of profile.
Background technique
Aluminium alloy is most widely used one kind non-ferrous metal structural material in industry, in Aeronautics and Astronautics, automobile, machinery It has been widely applied in manufacture, ship and chemical industry, aluminium alloy density is low, but intensity is relatively high, near or above high-quality steel, modeling Property it is good, can be processed into various profiles, have excellent electric conductivity, thermal conductivity and corrosion stability, be industrially widely used, usage amount is only Inferior to steel, 6063 aluminium alloys are then widely used in the frame of building aluminium door and window, curtain wall.
Existing application publication number is the Chinese patent of CN106636812A, discloses a kind of aluminium applied to solar energy frame Alloy profile, comprising: zinc 6%-10%, copper 0.1%-3%, magnesium 1%-3%, iron 0.3%-0.5%, silicon 0.5%-1%, manganese 0.3%-0.6%, nickel 0.4%-0.8%, silver-colored 0.2%-0.4%, scandium 0.03%-0.05%, pick 0.0.2%-0.04%, erbium 0.0.2%-0.04%, lanthanum 0.03%-0.05%, yttrium 0.01%-0.03%, cerium 0.01%-0.03%, titanium 0.03%- 0.06%, boron 0.08%-0.1%.
But during producing solar energy frame part with aluminum profile, it is poor to be frequently present of product surface quality, production efficiency Low problem.
Summary of the invention
It is a kind of for producing the aluminium of solar energy frame in view of the deficiencies of the prior art, the present invention intends to provide Alloy profile and preparation method thereof is deployed by the ingredient to Mg and Si, and the production craft step by improveing, The surface roughness of profile can be effectively reduced and improve production capacity.
To achieve the above object, the present invention provides the following technical scheme that
It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, the aluminium alloy by with It is lower at being grouped as: Si 0.39-0.42%, Fe < 0.19%, Cu < 0.05%, Mn < 0.05%, Mg 0.50-0.60%, Cr < 0.05%, Zn < 0.05%, Ti < 0.05%, surplus is aluminium;
Preparation method includes following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 730 DEG C -750 DEG C, smelting time 4h-5h, magnesium ingot then is added by component proportion into furnace, and stir, continues to melt 25min is refined, is then skimmed;
(B) it refines: furnace temperature is adjusted to 715 DEG C -730 DEG C of refining temperature, refining agent is added and refines 20-30min, skims, it is described The dosage of refining agent is the 0.2-0.3% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 730-735 DEG C, casting rate 75-90mm/ Min obtains casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 475-485 DEG C, extrusion die is heated to 470-480 DEG C, is squeezed, and obtains Aluminium alloy extrusions;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
By taking above-mentioned technical proposal, change the component content of Mg and Si, the appropriate ingredient specific gravity for reducing Mg and Si closes The ingredient specific gravity of suitable Mg and Si keep the alloy grain of alloy more tiny, meanwhile, the ingredient specific gravity of Mg and Si become smaller, can be with A small amount of excess silicon is generated, further alloy grain can be promoted to attenuate, and then the thermoplasticity of alloy can be increased, to guarantee The surface quality of aluminium alloy extrusions, meanwhile, other associated alloys are added according to the proportion, guarantee the flat of alloy plasticity and intensity Weighing apparatus, and during the preparation process, by Si, Fe, Cu, Mn, Mg, Cr, Zn and the Al of specified weight ratio by melting, form it into The alloy phase of benefit, and the processing temperature of a each step is managed in process of production, promote alloy grain to be refined, The surface roughness of profile can be effectively reduced and improve production capacity, reached to aluminium alloy extrusions production capacity, product qualification rate with And the purpose that surface quality is high.
The further setting of the present invention is that the aluminium alloy consists of the following compositions: Si 0.40- 0.42%, Fe < 0.17%, Cu < 0.04%, Mn < 0.04%, Mg 0.53-0.57%, Cr < 0.04%, Zn < 0.04%, Ti < 0.04%, surplus are aluminium.
By taking above-mentioned technical proposal, the proportion further progress of Mg, Si and other compositions are optimized, it can be into one Step improves the surface quality and production capacity of alloy product.
The further setting of the present invention is that the aluminium alloy consists of the following compositions: Si 0.41%, Fe 0.15%, Cu 0.02%, Mn0.02%, Mg 0.55%, Cr 0.03%, Zn0.03%, Ti0.01% are remaining Amount is aluminium.
By taking above-mentioned technical proposal, the proportion further progress of Mg, Si and other compositions are optimized, it can be into one Step improves the surface quality and production capacity of alloy product.
The further setting of the present invention is, in fusion process, in advance by aluminium silicon intermediate alloy and magnalium intermediate alloy, aluminium Chromium intermediate alloy and ferro-aluminum intermediate alloy and other intermediate alloys distinguish shove charge, respectively the melting 1-2h at 730 DEG C -750 DEG C, Then aluminium manganese intermediate alloy is added into the smelting furnace of aluminium silicon intermediate alloy and magnalium intermediate alloy and continues melting 1-2h, then will Continue melting 1-2h after the mixing of three furnace aluminium alloys, is eventually adding magnesium ingot and continues melting.
By taking above-mentioned technical proposal, melting is other than it can increase the mixing uniformity of aluminium alloy in batches, in aluminium Mg can be generated in silicon intermediate alloy and magnalium intermediate alloy fusion process5Al8Alloy phase, aluminium manganese intermediate alloy then is added can be with Mg5Al8Alloy phase homogeneous precipitation improves the corrosion stability of aluminium alloy, and aluminium chromium hardener and ferro-aluminum intermediate alloy melt in advance, (CrFe) Al is formed under the influence of no other components7Alloy phase, and then reduce the stress corrosion opening cracking maleate sensitivity of aluminium alloy.
The further setting of the present invention is that pre-soaking is carried out before melting, by aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminium Copper intermediate alloy, aluminium manganese intermediate alloy, magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy It is put into wash bowl, is rinsed 20-30min under the water velocity of 10-20m/s with 80% ethanol water.
By taking above-mentioned technical proposal, in aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese Between alloy, magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy carry out pre-soaking, can be right The impurity on the surface of associated alloys is removed in advance, and then further increases the quality of aluminium alloy, while using 80% second Alcohol solution is rinsed, and while guaranteeing removal effect, ethanol water is volatile when temperature is higher, will not be right The production of aluminium alloy has an impact.
The further setting of the present invention is, the refining agent by stainless steel tube by nitrogen with the speed of 50-60m/s by closing In the base injcction to aluminium alloy of golden liquid.
By taking above-mentioned technical proposal, refining agent is driven into aluminium alloy, refining agent and aluminium alloy can be accelerated Mixing velocity, to the more thorough of the impurity removal in aluminium alloy, meanwhile, nitrogen is as a kind of inert gas, in aluminium alloy Floating-upward process in can constantly adsorb field trash in aluminium alloy, and then carry field trash and float in page slag and arranged It removes, further the field trash in aluminium alloy is removed, and its jet velocity is effectively ejected into conjunction in guarantee refining agent While in golden liquid, the excessive splash for causing aluminium alloy of jet velocity is avoided.
The further setting of the present invention is that the refining agent is the mixing of HS-C2 harmless aluminum refining agent and boron nitride The amount ratio of object, the harmless aluminum refining agent of the HS-C2 and boron nitride is (11-15): (2-3).
By taking above-mentioned technical proposal, the harmless aluminum refining agent of HS-C2 has good same of refining degassing effect When, decompose source gas be nitrogen and carbon dioxide, no pollution to the environment, to melting tool also free from corrosion phenomenon, together When, nitrogen can constantly adsorb the field trash in aluminium alloy in the floating-upward process in aluminium alloy, and then carry inclusion floating It is excluded into page slag, and partial pressure of the hydrogen in alloy vacuole is greater than partial pressure of the hydrogen in nitrogen bubble, therefore, Hydrogen in alloy vacuole can be drawn into nitrogen bubble, and then realize the refining degasification to aluminium alloy, while nitridation is added Boron, it is possible to prevente effectively from the harmless aluminum refining agent of HS-C2 deliquesces, keeps the harmless aluminium of HS-C2 using its hydrophobic performance The activity of alloy refining agent, and boron element is introduced, it can play a part of to refine cast sturcture.
In conclusion the invention has the following advantages:
1. the present invention is by changing the component content of Mg and Si, and during the preparation process, by Si, Fe, the Cu of specified weight ratio, Mn, Mg, Cr, Zn and Al form it into beneficial alloy phase, and the processing to a each step in process of production by melting Temperature is managed, and alloy grain is promoted to be refined, and can be effectively reduced the surface roughness of profile and be improved production capacity, reach It has arrived to aluminium alloy extrusions production capacity, product qualification rate and the high purpose of surface quality;
2. the present invention carries out melting in batches, in aluminium silicon intermediate alloy and magnalium intermediate alloy fusion process in fusion process In can generate Mg5Al8Alloy phase, aluminium manganese intermediate alloy then is added can be with Mg5Al8Alloy phase homogeneous precipitation, improves aluminium alloy Corrosion stability, aluminium chromium hardener and ferro-aluminum intermediate alloy melt in advance, and (CrFe) Al is formed under the influence of no other components7It closes Metallographic, and then reduce the stress corrosion opening cracking maleate sensitivity of aluminium alloy.
Specific embodiment
Invention is further described in detail with reference to embodiments.
Embodiment one:
It is a kind of for producing the aluminium alloy extrusions of solar energy frame, aluminium alloy consists of the following compositions: Si 0.39%, Fe 0.18%, Cu 0.04%, Mn 0.04%, Mg 0.6%, Cr 0.03%, Zn0.04%, Ti0.03%, it is remaining Amount is aluminium.
Embodiment two:
It is a kind of for producing the aluminium alloy extrusions of solar energy frame, aluminium alloy consists of the following compositions: Si 0.40%, Fe 0.15%, Cu 0.02%, Mn0.02%, Mg 0.53%, Cr0.03%, Zn0.02%, Ti0.01%, surplus For aluminium.
Embodiment three:
It is a kind of for producing the aluminium alloy extrusions of solar energy frame, aluminium alloy consists of the following compositions: Si 0.41%, Fe 0.15%, Cu 0.02%, Mn0.02%, Mg 0.55%, Cr 0.03%, Zn0.03%, Ti0.01% are remaining Amount is aluminium.
Example IV:
It is a kind of for producing the aluminium alloy extrusions of solar energy frame, aluminium alloy consists of the following compositions: Si 0.42%, Fe 0.16%, Cu 0.03%, Mn 0.02%, Mg 0.57%, Cr0.02%, Zn0.03%, Ti0.03%, it is remaining Amount is aluminium.
Embodiment five:
It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, including following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 730 DEG C, smelting time 5h, magnesium ingot then is added by component proportion into furnace, and stir, and continues melting 25min, so After skim;
(B) it refines: furnace temperature being adjusted to 715 DEG C of refining temperature, by spraying machine, utilizes refined dose of penetrating aluminium alloy of nitrogen It is interior, 20min is refined, is skimmed, the dosage of refining agent is the 0.2% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 730 DEG C, casting rate 90mm/min, is obtained Casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 475 DEG C, extrusion die is heated to 470 DEG C, is squeezed, and aluminium alloy type is obtained Material;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
Wherein, refining agent is the mixture of HS-C2 harmless aluminum refining agent and boron nitride, the harmless aluminium alloy of HS-C2 The amount ratio of refining agent and boron nitride is 11:2.
Embodiment six:
It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, including following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 740 DEG C, smelting time 4.5h, magnesium ingot then is added by component proportion into furnace, and stir, and continues melting 25min, Then it skims;
(B) it refines: furnace temperature being adjusted to 720 DEG C of refining temperature, by spraying machine, utilizes refined dose of penetrating aluminium alloy of nitrogen It is interior, 25min is refined, is skimmed, the dosage of refining agent is the 0.25% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 732 DEG C, casting rate 80mm/min, is obtained Casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 480 DEG C, extrusion die is heated to 475 DEG C, is squeezed, and aluminium alloy type is obtained Material;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
Meanwhile pre-soaking is carried out to associated alloys before melting, it will be in aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze Between alloy, aluminium manganese intermediate alloy, magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy be put into In wash bowl, 20min is rinsed under the water velocity of 10m/s with 80% ethanol water;
Wherein, refining agent is the mixture of HS-C2 harmless aluminum refining agent and boron nitride, the harmless alloy refining of HS-C2 The amount ratio of agent and boron nitride is 14:3.
Embodiment seven:
It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, including following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 750 DEG C, smelting time 4h, magnesium ingot then is added by component proportion into furnace, and stir, and continues melting 25min, so After skim;
(B) it refines: furnace temperature being adjusted to 730 DEG C of refining temperature, by spraying machine, utilizes refined dose of penetrating aluminium alloy of nitrogen It is interior, 20min is refined, is skimmed, the dosage of refining agent is the 0.3% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 735 DEG C, casting rate 75mm/min, is obtained Casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 485 DEG C, extrusion die is heated to 480 DEG C, is squeezed, and aluminium alloy type is obtained Material;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
Meanwhile in fusion process, in advance by aluminium silicon intermediate alloy and magnalium intermediate alloy, aluminium chromium hardener and ferro-aluminum Intermediate alloy and other intermediate alloys distinguish shove charge, respectively the melting 1h at 740 DEG C, then to aluminium silicon intermediate alloy and magnalium Aluminium manganese intermediate alloy is added in the smelting furnace of intermediate alloy and continues melting 1h, continues melting after then mixing three furnace aluminium alloys 2h is eventually adding magnesium ingot and continues melting;
Wherein, refining agent is the mixture of HS-C2 harmless aluminum refining agent and boron nitride, the harmless alloy refining of HS-C2 The amount ratio of agent and boron nitride is 15:2.
Embodiment eight:
It is a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, including following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 740 DEG C, smelting time 4h, magnesium ingot then is added by component proportion into furnace, and stir, and continues melting 25min, so After skim;
(B) it refines: furnace temperature being adjusted to 720 DEG C of refining temperature, by spraying machine, utilizes refined dose of penetrating aluminium alloy of nitrogen It is interior, 25min is refined, is skimmed, the dosage of refining agent is the 0.25% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 732 DEG C, casting rate 80mm/min, is obtained Casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 480 DEG C, extrusion die is heated to 475 DEG C, is squeezed, and aluminium alloy type is obtained Material;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
Meanwhile pre-soaking is carried out to associated alloys before melting, it will be in aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze Between alloy, aluminium manganese intermediate alloy, magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy be put into In wash bowl, 20min is rinsed under the water velocity of 10m/s with 80% ethanol water;
It, in advance will be among aluminium silicon intermediate alloy and magnalium intermediate alloy, aluminium chromium hardener and ferro-aluminum also, in fusion process Alloy and other intermediate alloys distinguish shove charge, respectively the melting 1h at 740 DEG C, then among aluminium silicon intermediate alloy and magnalium Aluminium manganese intermediate alloy is added in the smelting furnace of alloy and continues melting 1h, continues melting 2h after then mixing three furnace aluminium alloys, most Magnesium ingot is added afterwards and continues melting;
Wherein, refining agent is the mixture of HS-C2 harmless aluminum refining agent and boron nitride, the harmless alloy refining of HS-C2 The amount ratio of agent and boron nitride be 14:3, and refining agent by stainless steel tube by nitrogen with the speed of 55m/s by aluminium alloy In base injcction to aluminium alloy.
Comparative example:
By the composition proportion of embodiment one to example IV, following steps produce aluminium alloy, and carry out correlation by GB/T3190 It can detection.
Comparative example production stage is as follows:
S1. ingredient: alloy proportion is carried out according to mentioned component;
S2. smelting and pouring: the aluminium alloy of above-mentioned alloy proportion is cast out to come;
S3. extrusion forming: the temperature setting appropriate to mould heating furnace guarantees that squeezing outlet temperature is 530 DEG C;
S4. it cuts.
Performance detection:
By data it is found that aluminium alloy of the invention is while proof strength and plasticity, surface roughness has been obtained significantly Reduction, surface quality has obtained good raising, and aluminium alloy extrusions production capacity improves 15-20%.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (7)

1. a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, it is characterised in that: the aluminium alloy is pressed Weight percent consists of the following compositions: Si 0.39-0.42%, Fe < 0.19%, Cu < 0.05%, Mn < 0.05%, Mg 0.50-0.60%, Cr < 0.05%, Zn < 0.05%, Ti < 0.05%, surplus is aluminium;
Preparation method includes following preparation step:
(A) melting: extract aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, among magnalium Alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy, in aforementioned component ratio ingredient shove charge melting, melting Temperature is 730 DEG C -750 DEG C, smelting time 4h-5h, magnesium ingot then is added by component proportion into furnace, and stir, continues to melt 25min is refined, is then skimmed;
(B) it refines: furnace temperature is adjusted to 715 DEG C -730 DEG C of refining temperature, refining agent is added and refines 20-30min, skims, it is described The dosage of refining agent is the 0.2-0.3% of aluminium content;
(C) it casts: feeding silk refinement online using aluminium titanium boron wire, placing temperature is 730-735 DEG C, casting rate 75-90mm/ Min obtains casting rod;
(D) it squeezes: aluminium alloy cast rod is heated to 475-485 DEG C, extrusion die is heated to 470-480 DEG C, is squeezed, and obtains Aluminium alloy extrusions;
(E) it cuts: aluminium alloy extrusions is cut into pieces by certain length.
2. according to claim 1 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature Be: the aluminium alloy consists of the following compositions: Si 0.40-0.42%, Fe < 0.17%, Cu < 0.04%, Mn < 0.04%, Mg 0.53-0.57%, Cr < 0.04%, Zn < 0.04%, Ti < 0.04%, surplus is aluminium.
3. according to claim 1 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature Be: the aluminium alloy consists of the following compositions: Si 0.41%, Fe 0.15%, Cu 0.02%, Mn0.02%, Mg 0.55%, Cr 0.03%, Zn0.03%, Ti0.01%, surplus are aluminium.
4. according to claim 1 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature It is: in fusion process, in advance by aluminium silicon intermediate alloy and magnalium intermediate alloy, aluminium chromium hardener and ferro-aluminum intermediate alloy And other intermediate alloys distinguish shove charge, the melting 1-2h at 730 DEG C -750 DEG C respectively, then to aluminium silicon intermediate alloy and magnalium Aluminium manganese intermediate alloy is added in the smelting furnace of intermediate alloy and continues melting 1-2h, continues melting after then mixing three furnace aluminium alloys 1-2h is eventually adding magnesium ingot and continues melting.
5. according to claim 1 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature Be: carrying out pre-soaking before melting, by aluminium silicon intermediate alloy, ferro-aluminum intermediate alloy, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, Magnalium intermediate alloy, aluminium chromium hardener, aluminium zinc intermediate alloy and aluminium titanium intermediate alloy are put into wash bowl, with 80% ethyl alcohol Aqueous solution is rinsed 20-30min under the water velocity of 10-20m/s.
6. according to claim 1 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature Be: the refining agent by stainless steel tube by nitrogen with the speed of 50-60m/s by the base injcction of aluminium alloy to aluminium alloy It is interior.
7. according to claim 6 a kind of for producing the preparation method of the aluminium alloy extrusions of solar energy frame, feature Be: the refining agent is the mixture of HS-C2 harmless aluminum refining agent and boron nitride, the harmless aluminium alloy of HS-C2 The amount ratio of refining agent and boron nitride is (11-15): (2-3).
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