CN106636811B - A kind of high-speed train body aluminium alloy extrusions and its manufacturing method - Google Patents
A kind of high-speed train body aluminium alloy extrusions and its manufacturing method Download PDFInfo
- Publication number
- CN106636811B CN106636811B CN201611148236.5A CN201611148236A CN106636811B CN 106636811 B CN106636811 B CN 106636811B CN 201611148236 A CN201611148236 A CN 201611148236A CN 106636811 B CN106636811 B CN 106636811B
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- alloy extrusions
- alloys
- speed
- speed train
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 130
- 238000001125 extrusion Methods 0.000 title claims abstract description 81
- 238000004519 manufacturing process Methods 0.000 title abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 26
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims description 37
- 229910045601 alloy Inorganic materials 0.000 claims description 36
- 239000011777 magnesium Substances 0.000 claims description 27
- 239000004411 aluminium Substances 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 238000007872 degassing Methods 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 13
- 239000011701 zinc Substances 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 238000009749 continuous casting Methods 0.000 claims description 9
- 230000004913 activation Effects 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 9
- 241001669679 Eleotris Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 239000002893 slag Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910017706 MgZn Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Continuous Casting (AREA)
Abstract
The present invention provides a kind of high-speed train body aluminium alloy extrusions and its manufacturing method, high-speed train body aluminium alloy extrusions forms as follows：Zn 5.5 ~ 6.5%, Mg 1.5 ~ 2.5%, Si 0.5 ~ 1.0%, Ru 0.1 ~ 0.3%, V 0.1 ~ 0.3%, Ti 0.03 ~ 0.05%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than 0.05%, and total impurities are less than 0.15%.High-speed train body of the present invention aluminium alloy extrusions has many advantages, such as that intensity is high, plasticity is good, corrosion-resistant and good welding performance, its tensile strength is more than 450MPa, yield strength is more than 380MPa, elongation is more than 10%, it is suitable for manufacturing the chassis central sill of high-speed train body, sleeper beam, end carriage, floor compartment, top plate, side wall, headwall etc., has a vast market application prospect.
Description
Technical field
The present invention relates to aluminium alloy extrusions manufacturing field more particularly to a kind of high-speed train body aluminium alloy extrusions and its
Manufacturing method.
Background technology
China is currently the longest country of high-speed railway mileage open to traffic in the world, light including high ferro, motor-car, subway, city
The highest test run speed highest of the rail traffics such as rail, magnetic suspension, wherein high ferro has reached 486.1 kilometers/hour.It arranges at a high speed
The structure lightened of vehicle car body is the effective way for improving the high-speed train body speed of service and carrying capacity.Aluminium alloy has matter
Amount is light, specific strength is high, corrosion-resistant, thermal conductivity is good, the advantages that shaping and being easy to do surfacecti proteon processing easy to process, is to arrange at a high speed
The light-weighted preferred material of vehicle body construction.The bullet trains such as high ferro, motor-car, subway, light rail, the magnetic suspension of China's operation at present
Most of car body is all using aluminum alloy bodywork, including vehicle body bottom frame central sill, sleeper beam, end carriage, floor compartment, top plate, side wall, end
Seat frame, air-conditioning system, door and window, sanitary installation, illumination, TV, luggage carrier in wall and compartment etc..
In high-speed train body aluminium, wherein more than 70% is aluminum alloy extrusion section bar.High-speed train body requirement aluminium closes
Golden extrudate maximizes, is thinning, wide cut, integration, cavitation, to meet the manufacture needs of high-speed train body, together
Shi Yaoqiu is using the aluminum alloy materials that extrusion performance is good, intensity is high, corrosion resistance and welding performance are excellent.Documents and materials are examined
Suo Faxian, at present High Speed Train in China Vehicle body aluminum alloy section bar still with 5005,6005,7003, the conventional trade mark such as 7N01
Based on aluminium alloy, but the comprehensive performance of this kind of aluminium alloy extrusions is still poor, there is an urgent need to develop extrusion performance is more preferable, intensity more
High, corrosion resistance and the more excellent aluminium alloy extrusions of welding performance, to meet the lightweight of High Speed Train in China car body and high speed
The demand for development of change.
Therefore, the prior art could be improved and develop.
Invention content
Part in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of high-speed train bodies to be closed with aluminium
Metal type material and its manufacturing method, it is intended to solve in the prior art that the intensity of aluminium alloy extrusions, plasticity, corrosion-resistant and welding performance be not
The problem of sufficient.
In order to achieve the above object, this invention takes following technical schemes：
A kind of high-speed train body aluminium alloy extrusions, wherein, according to mass percent meter, composition includes：
Zn 5.5 ~ 6.5%, Mg 1.5 ~ 2.5%, Si 0.5 ~ 1.0%, Ru 0.1 ~ 0.3%, V 0.1 ~ 0.3%, Ti 0.03 ~
0.05%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than 0.05%, and total impurities are less than
0.15%.A kind of manufacturing method of high-speed train body aluminium alloy extrusions as described above, which is characterized in that including following step
Suddenly：
S1：Select purity more than 99.9% aluminium ingot, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V alloys and
Al-20Ti alloys are as raw material；
S2：In 720 ~ 780 DEG C of heating fusing aluminium ingots, the zinc ingot metal, 1.5 for accounting for that raw material total weight is 5.5 ~ 6.5% are then added in
~ 2.5% magnesium ingot, 0.5 ~ 1.0% silicon metal, 0.5 ~ 1.5% Al-20Ru alloys, 1 ~ 3% Al-10V alloys and 0.15 ~
0.25% Al-20Ti alloys, stirring are fused into aluminum alloy melt；
S3：Furnace refining degasification is carried out using No. 2 refining agents for accounting for raw material total weight 0.5 ~ 1.0% to aluminum alloy melt to remove
Slag treatment；
S4：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 40 ~ 80ppi foamed ceramic filter plate and
The degasification tank that graphite rotator rotary speed is 350 ~ 400 revs/min, argon pressure is 100 ~ 150KPa carries out online degasification slagging-off
Processing；
S5：Casting temperature is 700 ~ 740 DEG C, casting speed is 40 ~ 50 mm/mins, ultrasonic frequency be 20 ~
30kHz, ultrasonic power output is under conditions of 200 ~ 300 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into diameter
450 ~ 550 millimeters of aluminium alloy pole；
S6：The aluminium alloy pole of step 4 is warming up to 520 ~ 550 DEG C with 80 ~ 100 DEG C/h of speed, then keeps the temperature 8
Carry out homogenizing annealing processing within ~ 24 hours；
S7：By the aluminium alloy pole of step 5 in 500 ~ 520 DEG C of extrusion cylinder temperature, 460 ~ 480 DEG C of mold temperature, extruding speed
The aluminium alloy extrusions that width is 550 ~ 750 millimeters is squeezed under the conditions of 1 ~ 3 m/min of degree, and in mould outlet to aluminium alloy type
Material carries out water mist press quenching processing；
S8：By the aluminium alloy extrusions of step 6 in 145 ~ 155 DEG C of ageing treatments 12 ~ 36 hours, obtain arranging at a high speed after cooling
Vehicle Vehicle body aluminum alloy section bar.
High-speed train body aluminium alloy extrusions of the present invention and its manufacturing method, the high-speed train body aluminium
Alloy profile composition is as follows：Zn 5.5 ~ 6.5%, Mg 1.5 ~ 2.5%, Si 0.5 ~ 1.0%, Ru 0.1 ~ 0.3%, V 0.1 ~ 0.3%,
Ti 0.03 ~ 0.05%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than 0.05%, total impurities
Less than 0.15%.High-speed train body of the present invention is with aluminium alloy extrusions with intensity is high, plasticity is good, corrosion-resistant and good welding performance
The advantages that, tensile strength is more than 450MPa, and yield strength is more than 380MPa, and elongation is more than 10%, is suitable for manufacture and arranges at a high speed
The chassis central sill of vehicle car body, sleeper beam, end carriage, floor compartment, top plate, side wall, headwall etc., have a vast market application prospect.
Specific embodiment
The present invention provides a kind of high-speed train body aluminium alloy extrusions and its manufacturing method, for make the purpose of the present invention,
Technical solution and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
A kind of high-speed train body aluminium alloy extrusions of the present invention, wherein, according to mass percent meter, composition packet
It includes：
Zn 5.5 ~ 6.5%, Mg 1.5 ~ 2.5%, Si 0.5 ~ 1.0%, Ru 0.1 ~ 0.3%, V 0.1 ~ 0.3%, Ti 0.03 ~
0.05%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than 0.05%, and total impurities are less than
0.15%.Wherein, Zn has larger solid solubility in aluminium alloy extrusions, can generate apparent solid solution strengthening effect, while Zn is also
Ability forms hardening constituent MgZn with Mg2, apparent invigoration effect is generated to aluminium alloy extrusions.With the increase of Zn contents, aluminium closes
The tensile strength and yield strength of metal type material all significantly improve.But when Zn contents are more than 6.5%, the extrusion process of aluminium alloy extrusions
Performance and plasticity can all decline, while stress corrosion inclination increases.In order to ensure that aluminium alloy extrusions obtains enough intensity, modeling
Property and stress corrosion resistant ability, therefore, Zn contents select 5.5 ~ 6.5%.
Further, Mg, Si existing solution strengthening effect in aluminium alloy extrusions, while Mg can also be formed2Si hardening constituents,
Enhance the intensity of aluminium alloy extrusions.Mg, Si content are higher, and the intensity of aluminium alloy extrusions is also higher.But Mg, Si content are too high,
The plasticity of aluminium alloy extrusions can be caused to decline.In order to ensure that aluminium alloy extrusions obtains enough intensity and plasticity, therefore, Mg contents
Selection is selected in 1.5 ~ 2.5%, Si contents 0.5 ~ 1.0%.
Further, Ru can form RuAl in aluminium alloy extrusions with Al6Compound disperses phase particle, can prevent aluminium alloy
The recrystallization process of section bar refines recrystal grain, improves the recrystallization temperature of aluminium alloy extrusions.In addition, RuAl6Compound is also
Energy dissolved impurity elemental iron, the Fe-riched phase enabled aluminum alloy in section bar are changed into fine and closely woven texture from sheet or acicular structure,
Reduce the adverse effect of impurity elements of ferrum, improve the intensity and corrosion resistance of aluminium alloy extrusions.But when ruthenium content is excessively high, easily
Cause the component segregation of ruthenium, therefore, Ru contents are selected 0.1 ~ 0.3%.
Further, in aluminium alloy extrusions aging strengthening model and welding process VAl can be precipitated with Al in V3Particle, it is strong to follow closely
Dislocation and sub boundary are pricked, the forming core and growth process of recrystal grain is hindered, has significant invigoration effect to aluminium alloy extrusions, carry
The welding performance of high-aluminium alloy section bar, therefore, Zr contents are selected 0.1 ~ 0.3%.
Further, Ti is a kind of effective grain refining element of aluminium grain, can refine the grain structure of casting rod, is improved
The tissue and homogeneity of ingredients of aluminium alloy pole.The Ti elements of addition 0.03 ~ 0.05% can enable aluminum alloy to the microscopic structure of pole
The equiax crystal of fine uniform is refined as from coarse dendrite, improves the tissue and homogeneity of ingredients of aluminium alloy pole, improves aluminium and closes
The extrusion process performance of golden pole.Therefore, the selection of Ti contents is 0.03 ~ 0.05%.
The manufacturing method of the high-speed train body aluminium alloy extrusions in the present invention is also provided, specifically includes following step
Suddenly：
S1：Select purity more than 99.9% aluminium ingot, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V alloys and
Al-20Ti alloys are as raw material；
S2：In 720 ~ 780 DEG C of heating fusing aluminium ingots, the zinc ingot metal, 1.5 for accounting for that raw material total weight is 5.5 ~ 6.5% are then added in
~ 2.5% magnesium ingot, 0.5 ~ 1.0% silicon metal, 0.5 ~ 1.5% Al-20Ru alloys, 1 ~ 3% Al-10V alloys and 0.15 ~
0.25% Al-20Ti alloys, stirring are fused into aluminum alloy melt；
S3：Furnace refining degasification is carried out using No. 2 refining agents for accounting for raw material total weight 0.5 ~ 1.0% to aluminum alloy melt to remove
Slag treatment；
S4：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 40 ~ 80ppi foamed ceramic filter plate and
The degasification tank that graphite rotator rotary speed is 350 ~ 400 revs/min, argon pressure is 100 ~ 150KPa carries out online degasification slagging-off
Processing；
S5：Casting temperature is 700 ~ 740 DEG C, casting speed is 40 ~ 50 mm/mins, ultrasonic frequency be 20 ~
30kHz, ultrasonic power output is under conditions of 200 ~ 300 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into diameter
450 ~ 550 millimeters of aluminium alloy pole；
S6：The aluminium alloy pole of step 4 is warming up to 520 ~ 550 DEG C with 80 ~ 100 DEG C/h of speed, then keeps the temperature 8
Carry out homogenizing annealing processing within ~ 24 hours；
S7：By the aluminium alloy pole of step 5 in 500 ~ 520 DEG C of extrusion cylinder temperature, 460 ~ 480 DEG C of mold temperature, extruding speed
The aluminium alloy extrusions that width is 550 ~ 750 millimeters is squeezed under the conditions of 1 ~ 3 m/min of degree, and in mould outlet to aluminium alloy type
Material carries out water mist press quenching processing；
S8：By the aluminium alloy extrusions of step 6 in 145 ~ 155 DEG C of ageing treatments 12 ~ 36 hours, obtain arranging at a high speed after cooling
Vehicle Vehicle body aluminum alloy section bar.
In preparation process, the present invention on the basis of Zn, Mg main alloying element content is optimized, then add micro Si,
Ru, V, Ti element form multiple elements design V-N steel, improve the intensity, plasticity, corrosion-resistant and weldability of aluminium alloy extrusions
Energy.
Further, the present invention is by using the aluminium ingot of high-purity, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-
10V alloys and Al-20Ti alloys are main raw material(s), with reference to on-line filtration, degassing processing outside furnace refining and stove, it is ensured that are obtained
The aluminium alloy extrusions of high-cleanness, high, it is ensured that aluminium alloy extrusions obtains high intensity, high-ductility and excellent corrosion-resistant and welding performance.
Further, the present invention using ultrasonic activation semi-continuous casting method by aluminum alloy melt semi-continuous casting into diameter
450 ~ 550 millimeters of aluminium alloy pole using the effect of vibration and sound cavitation effect of ultrasonic wave, crushes refining aluminum alloy crystal grain,
Improve the uniform extrusion performance of the structural constituent of aluminium alloy pole.
Further, the present invention then is squeezed into 550 ~ 750 millimeters by semi-continuous casting into large-sized aluminium alloy pole
Aluminium alloy extrusions can reduce the weld seam quantity of high-speed train body aluminium alloy extrusions, reduce production cost, and improve at a high speed
The overall performance of train body.
In order to more describe the preparation method of the present invention in detail, it is exemplified below several embodiment further descriptions.
Embodiment 1:
A kind of production component mass percent of high-speed train body aluminium alloy extrusions：Zn 5.5%, Mg 1.5%, Si
0.5%, Ru 0.1%, V 0.1%, Ti 0.03%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than
0.05%, total impurities are less than 0.15%.
The manufacturing method of the high-speed train body aluminium alloy extrusions includes the following steps：
The first step：Aluminium ingot of the purity more than 99.9%, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V is selected to close
Gold and Al-20Ti alloys are as raw material；
Second step：In 720 DEG C of heating fusing aluminium ingots, then addition accounts for the zinc ingot metal, 1.5% that raw material total weight is 5.5%
Magnesium ingot, 0.5% silicon metal, 0.5% Al-20Ru alloys, 1% Al-10V alloys and 0.15% Al-20Ti alloys, stirring are molten
It is melted into aluminum alloy melt；
Third walks：Furnace refining degasification is carried out using No. 2 refining agents for accounting for raw material total weight 0.5% to aluminum alloy melt to remove
Slag treatment；
4th step：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 40ppi foamed ceramic filter plate and
The degasification tank that graphite rotator rotary speed is 350 revs/min, argon pressure is 150KPa carries out online degasification and removes Slag treatment；
5th step：Casting temperature is 700 DEG C, casting speed is 50 mm/mins, ultrasonic frequency 20kHz, ultrasound
Under conditions of wave output power is 300 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into the aluminium alloy of 450 millimeters of diameter
Pole；
6th step：The aluminium alloy pole of step 4 is warming up to 520 DEG C with 80 DEG C/h of speed, it is small then to keep the temperature 24
The processing of Shi Jinhang homogenizing annealings；
7th step：By the aluminium alloy pole of step 5 in 500 DEG C of extrusion cylinder temperature, 460 DEG C of mold temperature, extrusion speed 3
The aluminium alloy extrusions that width is 550 millimeters is squeezed under the conditions of m/min, and water mist is carried out to aluminium alloy extrusions in mould outlet
Press quenching processing；
8th step：By the aluminium alloy extrusions of step 6 in 155 DEG C of ageing treatments 12 hours, high-speed train is obtained after cooling
Body aluminium alloy extrusions.
Embodiment 2
A kind of production component mass percent of high-speed train body aluminium alloy extrusions：Zn 6.0%, Mg 2.0%, Si
0.2%, Ru 0.15%, V 0.2%, Ti 0.04%, remaining is Al and inevitable impurity, wherein, the content of single impurity is small
In 0.05%, total impurities are less than 0.15%.
The manufacturing method of the high-speed train body aluminium alloy extrusions includes the following steps：
The first step：Aluminium ingot of the purity more than 99.9%, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V is selected to close
Gold and Al-20Ti alloys are as raw material；
Second step：In 760 DEG C of heating fusing aluminium ingots, then addition accounts for the zinc ingot metal, 2.0% that raw material total weight is 6.0%
Magnesium ingot, 0.7% silicon metal, 1% Al-20Ru alloys, 2.0% Al-10V alloys and 0.2% Al-20Ti alloys, stirring are molten
It is melted into aluminum alloy melt；
Third walks：Furnace refining degasification is carried out using No. 2 refining agents for accounting for raw material total weight 0.7% to aluminum alloy melt to remove
Slag treatment；
4th step：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 60ppi foamed ceramic filter plate and
The degasification tank that graphite rotator rotary speed is 385 revs/min, argon pressure is 125KPa carries out online degasification and removes Slag treatment；
5th step：Casting temperature is 720 DEG C, casting speed is 45 mm/mins, ultrasonic frequency 25kHz, ultrasound
Under conditions of wave output power is 250 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into the aluminium alloy of 500 millimeters of diameter
Pole；
6th step：The aluminium alloy pole of step 4 is warming up to 5350 DEG C with 90 DEG C/h of speed, it is small then to keep the temperature 18
The processing of Shi Jinhang homogenizing annealings；
7th step：By the aluminium alloy pole of step 5 in 510 DEG C of extrusion cylinder temperature, 470 DEG C of mold temperature, extrusion speed 2
The aluminium alloy extrusions that width is 650 millimeters is squeezed under the conditions of m/min, and water mist is carried out to aluminium alloy extrusions in mould outlet
Press quenching processing；
8th step：By the aluminium alloy extrusions of step 6 in 150 DEG C of ageing treatments 24 hours, high-speed train is obtained after cooling
Body aluminium alloy extrusions.
Embodiment 3
A kind of production component mass percent of rail traffic vehicles aluminium alloy extrusions：Zn 6.5%, Mg 2.5%, Si
1.0%, Ru 0.3%, V 0.3%, Ti 0.05%, remaining is Al and inevitable impurity, wherein, the content of single impurity is less than
0.05%, total impurities are less than 0.15%.
The manufacturing method of the high-speed train body aluminium alloy extrusions includes the following steps：
The first step：Aluminium ingot of the purity more than 99.9%, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V is selected to close
Gold and Al-20Ti alloys are as raw material；RuV
Second step：In 780 DEG C of heating fusing aluminium ingots, then addition accounts for the zinc ingot metal, 2.5% that raw material total weight is 6.5%
Magnesium ingot, 1% silicon metal, 1.5% Al-20Ru alloys, 3% Al-10V alloys and 0.25% Al-20Ti alloys, stirring fusing
Into aluminum alloy melt；
Third walks：Furnace refining degasification is carried out using No. 2 refining agents for accounting for raw material total weight 1.0% to aluminum alloy melt to remove
Slag treatment；
4th step：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 80ppi foamed ceramic filter plate and
The degasification tank that graphite rotator rotary speed is 400 revs/min, argon pressure is 100KPa carries out online degasification and removes Slag treatment；
5th step：Casting temperature is 740 DEG C, casting speed is 40 mm/mins, ultrasonic frequency 30kHz, ultrasound
Under conditions of wave output power is 200 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into the aluminium alloy of 550 millimeters of diameter
Pole；
6th step：The aluminium alloy pole of step 4 is warming up to 550 DEG C with 100 DEG C/h of speed, it is small then to keep the temperature 8
The processing of Shi Jinhang homogenizing annealings；
7th step：By the aluminium alloy pole of step 5 in 520 DEG C of extrusion cylinder temperature, 480 DEG C of mold temperature, extrusion speed 1
The aluminium alloy extrusions that width is 750 millimeters is squeezed under the conditions of m/min, and water mist is carried out to aluminium alloy extrusions in mould outlet
Press quenching processing；
8th step：By the aluminium alloy extrusions of step 6 in 145 DEG C of ageing treatments 36 hours, high-speed train is obtained after cooling
Body aluminium alloy extrusions.
By GB228-2010《Metal material stretching test》Standard, in the high-speed train body aluminium alloy of embodiment 1-3
It is sampled on section bar, and is processed into standard tensile specimen, room temperature tensile is carried out in DNS200 type Universal electrical cupping machines, tied
Fruit is as shown in table 1.
The tensile mechanical properties of 1 embodiment 1-3 high-speed train body aluminium alloy extrusions of table
| Embodiment | Tensile strength/MPa | Yield strength/MPa | Elongation/% |
| 1 | 457.5 | 386.5 | 12.7 |
| 2 | 479.1 | 410.7 | 11.4 |
| 3 | 489.2 | 424.9 | 10.8 |
From table 1, it can be seen that, the tensile strength of high-speed train body aluminium alloy extrusions of the present invention is more than 450MPa, and surrender is strong
Degree is more than 380MPa, and elongation is more than 10%, has the characteristics that intensity is high, plasticity is good, corrosion-resistant and welding performance is excellent, is suitble to
In the chassis central sill of manufacture high-speed train body, sleeper beam, end carriage, floor compartment, top plate, side wall, headwall etc., there is wide city
Field application prospect.
It should be understood that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (1)
1. a kind of high-speed train body aluminium alloy extrusions, which is characterized in that according to mass percent meter, composition includes：
Zn 5.5 ~ 6.5%, Mg 1.5 ~ 2.5%, Si 0.5 ~ 1.0%, Ru 0.1 ~ 0.3%, V 0.1 ~ 0.3%, Ti 0.03 ~ 0.05%,
Remaining is Al and inevitable impurity, wherein, the content of single impurity is less than 0.05%, and total impurities are less than 0.15%;
Preparation method includes the following steps：
S1：Aluminium ingot, zinc ingot metal, magnesium ingot, silicon metal, Al-20Ru alloys, Al-10V alloys and the Al- that purity is selected to be more than 99.9%
20Ti alloys are as raw material；
S2：720 ~ 780 DEG C heating fusing aluminium ingots, then add in account for raw material total weight be 5.5 ~ 6.5% zinc ingot metal, 1.5 ~
2.5% magnesium ingot, 0.5 ~ 1.0% silicon metal, 0.5 ~ 1.5% Al-20Ru alloys, 1 ~ 3% Al-10V alloys and 0.15 ~
0.25% Al-20Ti alloys, stirring are fused into aluminum alloy melt；
S3：Aluminum alloy melt is carried out at furnace refining degasification slagging-off using No. 2 refining agents for accounting for raw material total weight 0.5 ~ 1.0%
Reason；
S4：Aluminum alloy melt is flowed successively through be arranged on chute, porosity be 40 ~ 80ppi foamed ceramic filter plate and graphite
The degasification tank that rotary speed of rotator is 350 ~ 400 revs/min, argon pressure is 100 ~ 150kPa is carried out at online degasification slagging-off
Reason；
S5：Casting temperature is 700 ~ 740 DEG C, casting speed is 40 ~ 50 mm/mins, ultrasonic frequency is 20 ~ 30kHz, super
Under conditions of sound wave output power is 200 ~ 300 watts, by the semi-continuous casting of aluminum alloy melt ultrasonic activation into diameter 450 ~ 550 in the least
The aluminium alloy pole of rice；
S6：The aluminium alloy pole of step S5 is warming up to 520 ~ 550 DEG C with 80 ~ 100 DEG C/h of speed, then keeps the temperature 8 ~ 24
Hour carries out homogenizing annealing processing；
S7：By the aluminium alloy pole of step S6 500 ~ 520 DEG C of extrusion cylinder temperature, 460 ~ 480 DEG C of mold temperature, extrusion speed 1 ~
It is 550 ~ 750 millimeters of aluminium alloy extrusions that width is squeezed under the conditions of 3 ms/min, and mould outlet to aluminium alloy extrusions into
The processing of row water mist press quenching；
S8：By the aluminium alloy extrusions of step S7 in 145 ~ 155 DEG C of ageing treatments 12 ~ 36 hours, high-speed train is obtained after cooling
Body aluminium alloy extrusions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148236.5A CN106636811B (en) | 2016-12-13 | 2016-12-13 | A kind of high-speed train body aluminium alloy extrusions and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148236.5A CN106636811B (en) | 2016-12-13 | 2016-12-13 | A kind of high-speed train body aluminium alloy extrusions and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106636811A CN106636811A (en) | 2017-05-10 |
| CN106636811B true CN106636811B (en) | 2018-06-29 |
Family
ID=58825906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611148236.5A Active CN106636811B (en) | 2016-12-13 | 2016-12-13 | A kind of high-speed train body aluminium alloy extrusions and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106636811B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447142B (en) * | 2017-08-10 | 2019-01-11 | 广东和胜工业铝材股份有限公司 | Tough high Alcoa of a kind of automobile height and preparation method thereof |
| CN107447143A (en) * | 2017-08-10 | 2017-12-08 | 佛山市三水凤铝铝业有限公司 | A kind of hollow extruded aluminum alloy profile and its pressing method |
| CN107541622B (en) * | 2017-08-10 | 2019-01-08 | 广东兴发铝业有限公司 | A kind of transport facility aluminium alloy extrusions and its pressing method |
| CN108048715B (en) * | 2018-02-01 | 2019-07-16 | 佛山市三水凤铝铝业有限公司 | A kind of high-strength aluminum alloy and its pressing method for consumption electronic product shell |
| CN109628804B (en) * | 2018-12-06 | 2020-12-22 | 佛山市三水凤铝铝业有限公司 | High-strength aluminum alloy with excellent oxidation effect and preparation method thereof |
| CN110218914B (en) * | 2019-06-24 | 2020-11-27 | 广东工程职业技术学院 | A high-strength and wear-resistant cast aluminum-silicon alloy and its casting method |
| CN110541091B (en) * | 2019-10-08 | 2021-12-10 | 安徽鑫铂铝业股份有限公司 | High-strength aluminum alloy material for rail transit |
| CN110551926A (en) * | 2019-10-08 | 2019-12-10 | 安徽鑫铂铝业股份有限公司 | lightweight high-strength-toughness corrosion-resistant aluminum alloy material for rail transit |
| CN111424196B (en) * | 2020-04-02 | 2021-07-13 | 山东南山铝业股份有限公司 | Large-scale 7-series aluminum alloy ingot for civil aircraft and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914710B (en) * | 2010-09-16 | 2012-01-11 | 东北轻合金有限责任公司 | Manufacture method of aluminum alloy sheet for high-speed train structure |
| FR2971793B1 (en) * | 2011-02-18 | 2017-12-22 | Alcan Rhenalu | IMPROVED MICROPOROSITY ALUMINUM ALLOY SEMI-PRODUCT AND METHOD OF MANUFACTURING THE SAME |
| CN104395028B (en) * | 2012-05-31 | 2018-01-02 | 格朗吉斯瑞典公司 | Multilayer aluminum brazing sheet for the flux-free soldering in controlled atmosphere |
| CN103320727B (en) * | 2013-06-13 | 2015-06-24 | 广西南南铝加工有限公司 | Aluminum alloy medium plate preparation method |
| CN103710592A (en) * | 2013-12-17 | 2014-04-09 | 芜湖万润机械有限责任公司 | Preparation method of aluminum alloy profile for high speed train body |
| CN104032193B (en) * | 2014-05-20 | 2016-07-20 | 南京中车浦镇城轨车辆有限责任公司 | A kind of Al-Zn-Mg alloy and the preparation method of section bar thereof |
| CN105349852A (en) * | 2015-10-28 | 2016-02-24 | 无棣向上机械设计服务有限公司 | High-strength aluminum alloy |
-
2016
- 2016-12-13 CN CN201611148236.5A patent/CN106636811B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106636811A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106636811B (en) | A kind of high-speed train body aluminium alloy extrusions and its manufacturing method | |
| CN106636803B (en) | A kind of rail traffic vehicles aluminium alloy extrusions and its manufacturing method | |
| CN103667824B (en) | The production technique of low, the welding aluminium alloy of a kind of superstrength, quenching sensitive | |
| CN103484736B (en) | Strong 6000 line aluminium alloys of a kind of superelevation and preparation method thereof | |
| CN108315612B (en) | A kind of high-strength toughness anti-corrosion Al-Zn-Mg series aluminum alloy and its preparation method | |
| CN106399773B (en) | A kind of high-strength/tenacity aluminum alloy proximate matter | |
| CN101407876A (en) | Aluminum alloy material for manufacturing large cross section main load-carrying structure member and preparation thereof | |
| CN108660344A (en) | A kind of Al-Mg-Si alloy of low-quenching sensitive and preparation method thereof | |
| CN108251723B (en) | Al-Zn-Mg alloy profile for rail transit vehicle and preparation method thereof | |
| CN115852217A (en) | A high-strength easy-to-extrude aluminum alloy and its profile extrusion method | |
| CN108330356A (en) | A kind of tough anticorodal aluminium alloy of height and its pressing method for rail traffic | |
| CN112626401B (en) | 2XXX series aluminum alloy and preparation method thereof | |
| CN108311551B (en) | Cooling process for producing high-magnesium aluminum alloy welding wire blank by adopting continuous casting and rolling method | |
| CN106282692A (en) | A kind of vehicle body of railway vehicle aluminium section bar of high bending property and preparation method thereof | |
| CN101413079A (en) | Cobaltiferous aluminum alloy material and preparation thereof | |
| CN106350708A (en) | High-strength coarse-grain-ring-free aluminum alloy bar for automotive control arm and preparation method of aluminum alloy bar | |
| CN107447141A (en) | A kind of electronic product casing high-strength aluminum alloy and preparation method thereof | |
| CN100404714C (en) | High impact tough alloy material contg. Al, Si, Mgi used for making automobile hub and its producing method | |
| CN119457563B (en) | Welding materials, welding consumables, applications and preparation methods | |
| CN106435298A (en) | Aluminium alloy applied to aluminium alloy box body profiles of automobiles and preparation method of aluminium alloy | |
| CN114032427A (en) | 6-series aluminum alloy for automobile energy absorption box and preparation method thereof | |
| CN107739914A (en) | A kind of environmental sanitation car roof Production technology of aluminum alloy sectional bar | |
| CN109468508A (en) | A kind of aluminum alloy material for electric vehicle power battery tray and preparation method thereof | |
| CN109385563A (en) | A kind of ultra-high strength and toughness anticorodal aluminium alloy and preparation method thereof | |
| CN107937764A (en) | A kind of high tough aluminium alloy of liquid forging and its liquid forging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |