A kind of preparation method of door and window high-strength aluminum alloy material
Technical field
The present invention relates to a kind of preparation method of aluminum alloy materials, be specifically related to a kind of preparation method of door and window high-strength aluminum alloy material, belong to sash stuff technical field.
Background technology
Along with people's household mode of living becomes increasingly abundant various, demand for life household mode also improves thereupon, the raising wherein required for construction quality more seems particularly outstanding, the most outstanding to the requirement of building doors and windows, door and window used now has metal, plastics system, wooden etc. several, so the material making door and window becomes the object of main research.
Material is the mainstay of current science and technology, again because of aobvious particularly important in the basis being human social development and all science and technology, the development in science and technology degree of material directly can affect the change of productivity, and the Materials science of rising in recent years has one of scientific domain of overall importance, each economic power of the world brings up to Materials the strategic height of Economic development, Materials Science and Engineering is just entering a beyond example high-speed developing period, the development of society, the progress of human civilization shows, more and more higher to the requirement of material, and door and window aluminium alloy is because its hardness is higher, lightweight, not aging, both artistic and practical and be subject to the favor in market after color coating, the market requirement is more and more vigorous, but the workhardness of traditional aluminium alloy is too high, plasticity is poor, insufficient strength etc., product price is apparently higher than the common plate section product of similar aluminium alloy, thus have influence on it and promote the use of.
Summary of the invention
Technical problem to be solved by this invention is, for the shortcoming that above prior art exists, a kind of preparation method of door and window high-strength aluminum alloy material is proposed, this preparation method is simple to operation, saving cost, the aluminum alloy materials intensity prepared is high, yield strength is high, tensile strength good, easy welding, upsetting performance are good, and the fatigue lifetime of alloy is long.
The technical scheme that the present invention solves above technical problem is:
A preparation method for door and window high-strength aluminum alloy material, the preparation method of this aluminum alloy materials specifically comprises the following steps:
(1) with aluminium alloy structure steel for blank, blank heating is carried out hot rolling to 850-950 DEG C, start rolling temperature is 900-1000 DEG C, finishing temperature is 800-900 DEG C, the compressed air of blank after hot rolling is first cooled to 550-620 DEG C with the speed of cooling of 3-6 per second DEG C, and then progressively cools to room temperature and obtain work in-process;
Aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.2-0.4%, magnesium: 0.8-1.0%, zinc: 2-4%, titanium: 0.08-0.10%, chromium: 0.05-0.08%, nickel: 1-2%, scandium: 0.02-0.05%, yttrium: 0.01-0.03%, boron: 1-3%, neodymium: 0.9-1.5%, copper: 0-0.20%, silicon: 0.7-0.9%, nitrogen: 0.01-0.03%, oxygen: 0.007-0.009%, carbon: 0.02-0.03%, residual element: 0.09-0.45%, rare earth element: 0.5-1.5%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 5-9%, samarium: 9-11%, dysprosium: 15-18%, bait: 6-8%, lanthanum: 5-8%, terbium: 3-7%, lutetium: 10-14%, holmium: 8-10%, and surplus is lanthanon;
(2) expansion hydrogen thermal treatment 1-3h is carried out in argon gas to the work in-process obtained in step (1), expands hydrogen thermal treatment concrete technology as follows:
The blank that step (1) obtains is entered stove be heated to 780 ± 15 DEG C and be incubated 1-3h, air cooling to 450 ± 10 DEG C insulation 50-70min, and then be heated to 600 ± 10 DEG C of insulation 1-2h, stove is chilled to 350 ± 15 DEG C, and air cooling of finally coming out of the stove is to room temperature;
(3) heat scale is removed through expanding the work in-process after hydrogen thermal treatment through mechanical descaler apparatus in step (2), then enter that rinse bath, pickling tank and phosphating equipment carry out cleaning respectively successively, pickling and bonderizing, finally enter drying plant to dry, obtain the work in-process after processing;
(4) work in-process that step (3) obtains are put into the interior induction heating fast of open tube induction heater to 800-900 DEG C, then through refrigerating work procedure cool to room temperature;
Refrigerating work procedure concrete operations are: adopt water-cooled to be combined with air cooling, first adopt water-cooled with the rate of cooling of 2.5-3.0 DEG C/s by work in-process water-cooled to 500-580 DEG C, then air cooling is to 300-380 DEG C, adopt again water-cooled with the rate of cooling of 2.8-3.5 DEG C/s by work in-process water-cooled to 150-200 DEG C, last air cooling is to room temperature;
(5) work in-process being cooled to room temperature in step (4) are continued to be heated to 350-400 DEG C, and be incubated 40-60min, then grain stabilized process is carried out, adopt stelmor delayed quench technique to slowly cool to room temperature after process and can obtain door and window high-strength aluminum alloy material finished product, stelmor inlet end speed control is at 10-15m/min, exit end speed control is at 25-30m/min, and average cooling rate is 3-5 DEG C/s;
(6) the door and window high-strength aluminum alloy material finished product obtained in step (5) is checked one by one, reject surperficial defective, by the warehouse-in be up to the standards.
The further technical scheme of the present invention is:
In the preparation method of front fast door and window high-strength aluminum alloy material, aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.3%, magnesium: 0.9%, zinc: 3%, titanium: 0.09%, chromium: 0.06%, nickel: 2%, scandium: 0.04%, yttrium: 0.01%, boron: 2%, neodymium: 1.2%, copper: 0.20%, silicon: 0.9%, nitrogen: 0.02%, oxygen: 0.009%, carbon: 0.02%, residual element: 0.45%, rare earth element: 0.9%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 5-9%, samarium: 9%, dysprosium: 15%, bait: 8%, lanthanum: 6%, terbium: 5%, lutetium: 10%, holmium: 9%, and surplus is lanthanon.
In the preparation method of front fast door and window high-strength aluminum alloy material, aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.4%, magnesium: 0.8%, zinc: 4%, titanium: 0.08%, chromium: 0.05%, nickel: 1%, scandium: 0.05%, yttrium: 0.02%, boron: 1%, neodymium: 0.9%, copper: 0.15%, silicon: 0.7%, nitrogen: 0.01%, oxygen: 0.007%, carbon: 0.03%, residual element: 0.45%, rare earth element: 0.5%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 5-9%, samarium: 11%, dysprosium: 18%, bait: 6%, lanthanum: 8%, terbium: 7%, lutetium: 14%, holmium: 10%, and surplus is lanthanon.
In the preparation method of front fast door and window high-strength aluminum alloy material, aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.2%, magnesium: 1.0%, zinc: 2%, titanium: 0.10%, chromium: 0.08%, nickel: 2%, scandium: 0.02%, yttrium: 0.03%, boron: 2%, neodymium: 1.5%, copper: 0.08%, silicon: 0.8%, nitrogen: 0.03%, oxygen: 0.008%, carbon: 0.02%, residual element: 0.25%, rare earth element: 1.5%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 5-9%, samarium: 10%, dysprosium: 17%, bait: 7%, lanthanum: 5%, terbium: 3%, lutetium: 12%, holmium: 8%, and surplus is lanthanon.
In the preparation method of front fast door and window high-strength aluminum alloy material, in step (1), the concrete preparation method of aluminium alloy structure steel billet material is:
each component of aluminium alloy structure steel billet material is allocated, and all components is delivered in smelting furnace, at 800-1000 DEG C, carry out melting, after all elements melts completely, stir 10-15min, then at 500-700 DEG C, leave standstill 15-28min;
poured into by melting liquid in the metal die of preheating, after preheating, the temperature of metal die is 150-200 DEG C, makes ingot casting through mould:
carry out milling to the large face of ingot casting or little face, be then heated to 500-580 DEG C to ingot casting, insulation 1-2h, naturally cools to room temperature, namely obtains structural alloy steel blank.
The invention has the beneficial effects as follows:
In composition of the present invention, with the addition of B, B can carry heavy alloyed transition temperature, the original grain of remarkable refinement cast alloy, and degree of refinement can reach an order of magnitude, improves yield strength and the tensile strength of alloy; Simultaneously B not only can the as-cast structure of refining alloy, and cast alloy directly can be rolled distortion, and does not have obvious tiny crack along original grain in microstructure, improves the fatigue lifetime of alloy; In addition the segregation adding crystal boundary in the alloy of B hinders growing up of crystal grain, thus is conducive to improving Toughness.
N, C, O containing trace in the present invention, in the present invention trace N, C, O as interstitial elements such as one, they can put forward heavy alloyed intensity, can obviously refinement and strengthen martensite, N, in heat treatment process, maintains good plasticity while alloy is strengthened.
Expand the work in-process after hydrogen thermal treatment and can carry heavy alloyed high-temperature oxidation resistance, hardness and friction and wear behavior through mechanical descaler apparatus removal heat scale.
Expansion hydrogen thermal treatment in the present invention, ensures that blank hydrogen richness is under the prerequisite of below 2.0ppm, and the content of further reduction hydrogen, prevents blank from producing Light spots crack and heat treatment stress brings out hydrogen induced cracking and hydrogen causes delay delayed fracture.
In the present invention, work in-process adopt stelmor delayed quench technique, half-finished speed of cooling can carry out artificial control, half-finished quality is ensured than being easier to, also the requirement of different steel grade can be adapted to, simultaneously stelmor technique is comparatively safe, reliable and equipment does not need dark ground, easy to operate.
The present invention checks one by one at last finished product, guarantee conforming product rate, door and window high-strength aluminum alloy material of the present invention, intensity is high, yield strength is high, tensile strength is good, easy welding, upsetting performance are good, the fatigue lifetime of alloy is long, simultaneously its preparation method simple to operation, save cost, bring good income to manufacturer.
Embodiment
embodiment 1
The present embodiment provides a kind of preparation method of door and window high-strength aluminum alloy material, and the preparation method of this aluminum alloy materials specifically comprises the following steps:
(1) with aluminium alloy structure steel for blank, blank heating is carried out hot rolling to 900 DEG C, and start rolling temperature is 1000 DEG C, and finishing temperature is 850 DEG C, the compressed air of blank after hot rolling is first cooled to 580 DEG C with the speed of cooling of 5 DEG C per second, and then progressively cools to room temperature and obtain work in-process;
Aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.3%, magnesium: 0.9%, zinc: 3%, titanium: 0.09%, chromium: 0.06%, nickel: 2%, scandium: 0.04%, yttrium: 0.01%, boron: 2%, neodymium: 1.2%, copper: 0.20%, silicon: 0.9%, nitrogen: 0.02%, oxygen: 0.009%, carbon: 0.02%, residual element: 0.45%, rare earth element: 0.9%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 5%, samarium: 9%, dysprosium: 15%, bait: 8%, lanthanum: 6%, terbium: 5%, lutetium: 10%, holmium: 9%, and surplus is lanthanon;
(2) expansion hydrogen thermal treatment 2h is carried out in argon gas to the work in-process obtained in step (1), expands hydrogen thermal treatment concrete technology as follows:
The blank that step (1) obtains is entered stove be heated to 780 DEG C and be incubated 1h, air cooling to 440 DEG C insulation 60min, and then be heated to 600 DEG C of insulation 1h, stove is chilled to 335 DEG C, and air cooling of finally coming out of the stove is to room temperature;
(3) heat scale is removed through expanding the work in-process after hydrogen thermal treatment through mechanical descaler apparatus in step (2), then enter that rinse bath, pickling tank and phosphating equipment carry out cleaning respectively successively, pickling and bonderizing, finally enter drying plant to dry, obtain the work in-process after processing;
(4) work in-process that step (3) obtains are put into the interior induction heating fast of open tube induction heater to 900 DEG C, then through refrigerating work procedure cool to room temperature;
Refrigerating work procedure concrete operations are: adopt water-cooled to be combined with air cooling, first adopt water-cooled with the rate of cooling of 3.0 DEG C/s by work in-process water-cooled to 500 DEG C, then air cooling to 350 DEG C, then adopt water-cooled with the rate of cooling of 3.1 DEG C/s by work in-process water-cooled to 150 DEG C, last air cooling is to room temperature;
(5) work in-process being cooled to room temperature in step (4) are continued to be heated to 400 DEG C, and be incubated 50min, then grain stabilized process is carried out, adopt stelmor delayed quench technique to slowly cool to room temperature after process and can obtain door and window high-strength aluminum alloy material finished product, stelmor inlet end speed control is at 13m/min, exit end speed control is at 30m/min, and average cooling rate is 4 DEG C/s;
(6) the door and window high-strength aluminum alloy material finished product obtained in step (5) is checked one by one, reject surperficial defective, by the warehouse-in be up to the standards.
embodiment 2
The present embodiment provides a kind of preparation method of door and window high-strength aluminum alloy material, and the preparation method of this aluminum alloy materials specifically comprises the following steps:
(1) with aluminium alloy structure steel for blank, blank heating is carried out hot rolling to 850 DEG C, and start rolling temperature is 900 DEG C, and finishing temperature is 800 DEG C, the compressed air of blank after hot rolling is first cooled to 550 DEG C with the speed of cooling of 3 DEG C per second, and then progressively cools to room temperature and obtain work in-process;
Aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.4%, magnesium: 0.8%, zinc: 4%, titanium: 0.08%, chromium: 0.05%, nickel: 1%, scandium: 0.05%, yttrium: 0.02%, boron: 1%, neodymium: 0.9%, copper: 0.15%, silicon: 0.7%, nitrogen: 0.01%, oxygen: 0.007%, carbon: 0.03%, residual element: 0.45%, rare earth element: 0.5%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 9%, samarium: 11%, dysprosium: 18%, bait: 6%, lanthanum: 8%, terbium: 7%, lutetium: 14%, holmium: 10%, and surplus is lanthanon;
(2) expansion hydrogen thermal treatment 1h is carried out in argon gas to the work in-process obtained in step (1), expands hydrogen thermal treatment concrete technology as follows:
The blank that step (1) obtains is entered stove be heated to 765 DEG C and be incubated 2h, air cooling to 450 DEG C insulation 50min, and then be heated to 590 DEG C of insulation 2h, stove is chilled to 365 DEG C, and air cooling of finally coming out of the stove is to room temperature;
(3) heat scale is removed through expanding the work in-process after hydrogen thermal treatment through mechanical descaler apparatus in step (2), then enter that rinse bath, pickling tank and phosphating equipment carry out cleaning respectively successively, pickling and bonderizing, finally enter drying plant to dry, obtain the work in-process after processing;
(4) work in-process that step (3) obtains are put into the interior induction heating fast of open tube induction heater to 800 DEG C, then through refrigerating work procedure cool to room temperature;
Refrigerating work procedure concrete operations are: adopt water-cooled to be combined with air cooling, first adopt water-cooled with the rate of cooling of 2.5 DEG C/s by work in-process water-cooled to 580 DEG C, then air cooling to 300 DEG C, then adopt water-cooled with the rate of cooling of 3.5 DEG C/s by work in-process water-cooled to 200 DEG C, last air cooling is to room temperature;
(5) work in-process being cooled to room temperature in step (4) are continued to be heated to 350 DEG C, and be incubated 60min, then grain stabilized process is carried out, adopt stelmor delayed quench technique to slowly cool to room temperature after process and can obtain door and window high-strength aluminum alloy material finished product, stelmor inlet end speed control is at 10m/min, exit end speed control is at 25m/min, and average cooling rate is 5 DEG C/s;
(6) the door and window high-strength aluminum alloy material finished product obtained in step (5) is checked one by one, reject surperficial defective, by the warehouse-in be up to the standards.
embodiment 3
The present embodiment provides a kind of preparation method of door and window high-strength aluminum alloy material, and the preparation method of this aluminum alloy materials specifically comprises the following steps:
(1) with aluminium alloy structure steel for blank, blank heating is carried out hot rolling to 950 DEG C, and start rolling temperature is 960 DEG C, and finishing temperature is 900 DEG C, the compressed air of blank after hot rolling is first cooled to 620 DEG C with the speed of cooling of 6 DEG C per second, and then progressively cools to room temperature and obtain work in-process;
Aluminium alloy structure steel billet material comprises following component by mass percentage:
Iron: 0.2%, magnesium: 1.0%, zinc: 2%, titanium: 0.10%, chromium: 0.08%, nickel: 2%, scandium: 0.02%, yttrium: 0.03%, boron: 2%, neodymium: 1.5%, copper: 0.08%, silicon: 0.8%, nitrogen: 0.03%, oxygen: 0.008%, carbon: 0.02%, residual element: 0.25%, rare earth element: 1.5%, all the other are aluminium
Rare earth element comprises following component by mass percentage: cerium: 7%, samarium: 10%, dysprosium: 17%, bait: 7%, lanthanum: 5%, terbium: 3%, lutetium: 12%, holmium: 8%, and surplus is lanthanon;
(2) expansion hydrogen thermal treatment 3h is carried out in argon gas to the work in-process obtained in step (1), expands hydrogen thermal treatment concrete technology as follows:
The blank that step (1) obtains is entered stove be heated to 795 DEG C and be incubated 3h, air cooling to 460 DEG C insulation 70min, and then be heated to 610 DEG C of insulation 2h, stove is chilled to 350 DEG C, and air cooling of finally coming out of the stove is to room temperature;
(3) heat scale is removed through expanding the work in-process after hydrogen thermal treatment through mechanical descaler apparatus in step (2), then enter that rinse bath, pickling tank and phosphating equipment carry out cleaning respectively successively, pickling and bonderizing, finally enter drying plant to dry, obtain the work in-process after processing;
(4) work in-process that step (3) obtains are put into the interior induction heating fast of open tube induction heater to 850 DEG C, then through refrigerating work procedure cool to room temperature;
Refrigerating work procedure concrete operations are: adopt water-cooled to be combined with air cooling, first adopt water-cooled with the rate of cooling of 2.8 DEG C/s by work in-process water-cooled to 550 DEG C, then air cooling to 380 DEG C, then adopt water-cooled with the rate of cooling of 2.8 DEG C/s by work in-process water-cooled to 180 DEG C, last air cooling is to room temperature;
(5) work in-process being cooled to room temperature in step (4) are continued to be heated to 380 DEG C, and be incubated 60min, then grain stabilized process is carried out, adopt stelmor delayed quench technique to slowly cool to room temperature after process and can obtain door and window high-strength aluminum alloy material finished product, stelmor inlet end speed control is at 15m/min, exit end speed control is at 28m/min, and average cooling rate is 3 DEG C/s;
(6) the door and window high-strength aluminum alloy material finished product obtained in step (5) is checked one by one, reject surperficial defective, by the warehouse-in be up to the standards.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.