CN102505088A - Method for manufacturing aluminum profiles used for coal cars - Google Patents
Method for manufacturing aluminum profiles used for coal cars Download PDFInfo
- Publication number
- CN102505088A CN102505088A CN201110460074XA CN201110460074A CN102505088A CN 102505088 A CN102505088 A CN 102505088A CN 201110460074X A CN201110460074X A CN 201110460074XA CN 201110460074 A CN201110460074 A CN 201110460074A CN 102505088 A CN102505088 A CN 102505088A
- Authority
- CN
- China
- Prior art keywords
- casting
- stove
- section bar
- aluminium
- casting rod
- 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.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for manufacturing aluminum profiles used for coal cars, comprising the following steps of: a, casting bar compounding, b, casting bar smelting, c, casting bar casting, d, homogenization treatment, e, casting bar surface treatment, f, casting bar heating, g, mould heating, h, extrusion production, i, on-line quenching, j, profiles aging, etc., each parameter in each step is strictly controlled; through an experimental test, the performances of the aluminum profiles obtained by the method provided in the invention are as follows: the regulated non-proportional extension strength is above 245MPa; the tensile strength is above 265MPa; and the percentage elongation after fracture is above 9%. When ensuring experiment requirement of the aluminum profiles used for the coal cars, the performances can simplify the process flow for assembling car bodies, improve the production efficiency, shorten the production cycle and reduc ethe production cost; and the method has remarkable economic benefit.
Description
Technical field
The present invention relates to duraluminum and make the field, relate in particular to the method for manufacture of coal conveyor with aluminium section bar.
Background technology
At present, the coal conveyor car body is two bathtub formulas, duraluminum rivetstructure mostly, mainly is made up of underframe, bathtub, side wall, headwall and strut etc.Wherein: underframe (central sill, sleeper beam, end carriage) is all steel welded construction; Bathtub, side wall and headwall all adopt the rivetstructure of aluminum alloy plate materials and aluminum alloy extrusion section bar; In the prior art, coal conveyor is smaller with the section of aluminium section bar, and this just causes, and riveted seam is more, the assembling difficulty is big; More riveted joint processing can cause the whole locomotive body performance decrease.
To above-mentioned deficiency, need a kind of duraluminum ME be provided again, to overcome above-mentioned defective from improving big section type wood property ability angle.
Summary of the invention
In view of this, the purpose of this invention is to provide the method for manufacture of a kind of coal conveyor, the cross dimensions of its gained aluminium section bar is increased, reduce the riveted joint amount during car body assembling with aluminium section bar; Simplify car body packaging technology process, and the gained aluminium section bar can satisfy coal conveyor car body manufacturing requirement fully.
The objective of the invention is to realize through following technical scheme: a kind of coal conveyor is characterized in that with the method for manufacture of aluminium section bar: may further comprise the steps:
A, casting rod batching: adopt 6061 alloys, the mass percent proportioning of each element of preparing burden satisfies following the requirement:
B, cast excellent melting: above-mentioned batching is dropped into successively carry out melting in the smelting furnace, the stove inner control is at 720 ℃-750 ℃, and uses flux to carry out refining to cover; Feed intake behind the 30min-60min; When treating to occur aluminium water in the stove, begin to stir, again through refining, skim obtain qualified composition after; Aluminium liquid is injected holding furnace from smelting furnace; Furnace temperature leaves standstill under 730 ℃ of-740 ℃ of conditions and keeps 20-30min, utilizes argon gas to take hydrogen in the aluminium liquid and fine impurities to surface then, thereby reduces the hydrogen richness in the aluminium liquid;
C, the casting of casting rod: adopt cunning casting, casting temp is controlled at 680 ℃-720 ℃, and casting speed is controlled at 26-42mm/min, and the casting cooling water flow is controlled at 950-1350L/min;
D, homogenizing are handled: homogenizing is handled and will in the homogeneous stove, be carried out, and temperature is incubated 10 hours between 555 ℃-560 ℃;
E, cast excellent surface treatment: cast excellent surperficial railway carriage 10mm, the roughness Ra of appearance is not less than 6.3 μ m, so that remove defectives such as the excellent surface and oil contaminant of casting, machinery are damaged, surface segregation layer;
F, the heating of casting rod: the casting rod is heated to be gradient-heated head, the tail temperature difference between 10 ℃～20 ℃ in excellent stove, and casting rod Heating temperature in stove is 510 ± 10 ℃;
G, mold heated: mould is incubated 38 hours with 500 ± 10 ℃ in the mold heated stove;
H, extrusion production: casting rod, mold heated are pushed after accomplishing, and extrusion speed is 3.0 ± 0.3m/min;
I, press quenching: its temperature was not less than 500 ℃ and gets into quench zone when extruded section went out the mould mouth, and the quenching mode is chosen as high wind and cooperates water spray quenching; Guarantee to obtain in the matrix high oversaturated sosoloid;
J, section bar timeliness: finish to carry out timeliness within back 8 hours in extruding, aging temp is 175 ℃, and soaking time is 8h, can obtain required coal conveyor and use aluminium section bar.
Further, among the step c, casting speed is 36mm/min;
Further, among the step h, extrusion speed is 3.0m/min.
Beneficial effect of the present invention: adopt the aluminium section bar of the method for the invention gained, width can reach 355 ± 2mm, and thickness can reach 113+0.4mm; The lateral performance of its extruding position while welding can reach does not have more than 90% of position while welding of extruding, and through experiment test, its regulation disproportional extension strength reaches more than the 245MPa, tensile strength reaches more than the 265MPa, elongation after fracture reaches more than 9%.Its performance can be simplified the car body process flow for assembling, enhances productivity, shortens the production cycle, reduce production costs when guaranteeing that coal conveyor is with the aluminium alloy extrusions requirement of experiment, has tangible economic benefit.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1, and the coal conveyor of present embodiment may further comprise the steps with the method for manufacture of aluminium section bar:
A, casting rod batching: adopt 6061 alloys, the mass percent proportioning of each element of preparing burden satisfies following the requirement:
| Element | Si | Mg | Fe | Cu | Mn | Cr | Ti | Zn | Other | Al |
| Content | 0.50 | 1.00 | 0.50 | 0.20 | 0.15 | 0.20 | 0.10 | 0.15 | 0.10 | All the other |
B, cast excellent melting: above-mentioned batching is dropped into successively carry out melting in the smelting furnace, the stove inner control is at 72 ℃, and uses flux to carry out refining to cover; Feed intake behind the 60min; When treating to occur aluminium water in the stove, begin to stir, again through refining, skim obtain qualified composition after; Aluminium liquid is injected holding furnace from smelting furnace; Furnace temperature leaves standstill under 730 ℃ of conditions and keeps 30min, utilizes argon gas to take hydrogen in the aluminium liquid and fine impurities to surface then, thereby reduces the hydrogen richness in the aluminium liquid;
C, the casting of casting rod: adopt cunning casting, casting temp is controlled at 720 ℃, and casting speed is controlled at 42mm/min, and the casting cooling water flow is controlled at 950L/min;
D, homogenizing are handled: homogenizing is handled and will in the homogeneous stove, be carried out, and temperature was 560 ℃ of insulations 10 hours;
E, cast excellent surface treatment: cast excellent surperficial railway carriage 10mm, the roughness Ra of appearance is not less than 6.3 μ m, so that remove defectives such as the excellent surface and oil contaminant of casting, machinery are damaged, surface segregation layer;
F, the heating of casting rod: the casting rod is heated to be gradient-heated head, the tail temperature difference at 20 ℃ in excellent stove, and casting rod Heating temperature in stove is 500 ℃;
G, mold heated: mould is incubated 8 hours with 490 ℃ in the mold heated stove;
H, extrusion production: casting rod, mold heated are pushed after accomplishing, and extrusion speed is 2.7m/min;
I, press quenching: its temperature was not less than 500 ℃ and gets into quench zone when extruded section went out the mould mouth, and the quenching mode is chosen as high wind and cooperates water spray quenching; Guarantee to obtain in the matrix high oversaturated sosoloid;
J, section bar timeliness: finish to carry out timeliness within back 8 hours in extruding, aging temp is 175 ℃, and soaking time is 8h, can obtain required coal conveyor and use aluminium section bar.
Embodiment 2, and the coal conveyor of present embodiment may further comprise the steps with the method for manufacture of aluminium section bar:
A, casting rod batching: adopt 6061 alloys, the mass percent proportioning of each element of preparing burden satisfies following the requirement:
| Element | Si | Mg | Fe | Cu | Mn | Cr | Ti | Zn | Other | Al |
| Content | 0.60 | 0.90 | 0.40 | 0.30 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | All the other |
B, cast excellent melting: above-mentioned batching is dropped into successively carry out melting in the smelting furnace, the stove inner control is at 750 ℃, and uses flux to carry out refining to cover; Feed intake behind the 30min; When treating to occur aluminium water in the stove, begin to stir, again through refining, skim obtain qualified composition after; Aluminium liquid is injected holding furnace from smelting furnace; Furnace temperature leaves standstill under 740 ℃ of conditions and keeps 20min, utilizes argon gas to take hydrogen in the aluminium liquid and fine impurities to surface then, thereby reduces the hydrogen richness in the aluminium liquid;
C, the casting of casting rod: adopt cunning casting, casting temp is controlled at 680 ℃, and casting speed is controlled at 26mm/min, and the casting cooling water flow is controlled at 1350L/min;
D, homogenizing are handled: homogenizing is handled and will in the homogeneous stove, be carried out, and temperature was 555 ℃ of ℃ of insulations 10 hours;
E, cast excellent surface treatment: cast excellent surperficial railway carriage 10mm, the roughness Ra of appearance is not less than 6.3 μ m, so that remove defectives such as the excellent surface and oil contaminant of casting, machinery are damaged, surface segregation layer;
F, the heating of casting rod: the casting rod is heated to be gradient-heated head, the tail temperature difference at 10 ℃ in excellent stove, and casting rod Heating temperature in stove is 520 ℃;
G, mold heated: mould is incubated 3 hours with 510 ℃ in the mold heated stove;
H, extrusion production: casting rod, mold heated are pushed after accomplishing, and extrusion speed is 3.3m/min;
I, press quenching: its temperature was not less than 500 ℃ and gets into quench zone when extruded section went out the mould mouth, and the quenching mode is chosen as high wind and cooperates water spray quenching; Guarantee to obtain in the matrix high oversaturated sosoloid;
J, section bar timeliness: finish to carry out timeliness within back 8 hours in extruding, aging temp is 175 ℃, and soaking time is 8h, can obtain required coal conveyor and use aluminium section bar.
Embodiment 3, and the coal conveyor of present embodiment may further comprise the steps with the method for manufacture of aluminium section bar:
A, casting rod batching: adopt 6061 alloys, the mass percent proportioning of each element of preparing burden satisfies following the requirement:
| Element | Si | Mg | Fe | Cu | Mn | Cr | Ti | Zn | Other | Al |
| Content | 0.55 | 0.95 | 0.50 | 0.25 | 0.15 | 0.15 | 0.10 | 0.15 | 0.10 | All the other |
B, cast excellent melting: above-mentioned batching is dropped into successively carry out melting in the smelting furnace, the stove inner control is at 740 ℃, and uses flux to carry out refining to cover; Feed intake behind the 50min; When treating to occur aluminium water in the stove, begin to stir, again through refining, skim obtain qualified composition after; Aluminium liquid is injected holding furnace from smelting furnace; Furnace temperature leaves standstill under 735 ℃ of conditions and keeps 25min, utilizes argon gas to take hydrogen in the aluminium liquid and fine impurities to surface then, thereby reduces the hydrogen richness in the aluminium liquid;
C, the casting of casting rod: adopt cunning casting, casting temp is controlled at 700 ℃, and casting speed is controlled at 36mm/min, and the casting cooling water flow is controlled at 1200L/min;
D, homogenizing are handled: homogenizing is handled and will in the homogeneous stove, be carried out, and temperature was 560 ℃ of insulations 10 hours;
E, cast excellent surface treatment: cast excellent surperficial railway carriage 10mm, the roughness Ra of appearance is not less than 6.3 μ m, so that remove defectives such as the excellent surface and oil contaminant of casting, machinery are damaged, surface segregation layer;
F, the heating of casting rod: the casting rod is heated to be gradient-heated head, the tail temperature difference at 15 ℃ in excellent stove, and casting rod Heating temperature in stove is 510 ℃;
G, mold heated: mould is incubated 3-8 hour with 500 ℃ in the mold heated stove;
H, extrusion production: casting rod, mold heated are pushed after accomplishing, and extrusion speed is 3.0m/min;
I, press quenching: its temperature was not less than 500 ℃ and gets into quench zone when extruded section went out the mould mouth, and the quenching mode is chosen as high wind and cooperates water spray quenching; Guarantee to obtain in the matrix high oversaturated sosoloid;
J, section bar timeliness: finish to carry out timeliness within back 8 hours in extruding, aging temp is 175 ℃, and soaking time is 8h, can obtain required coal conveyor and use aluminium section bar.
Aluminium section bar to above-mentioned three embodiment gained detects: width can reach 355 ± 2mm, and thickness can reach 113+0.4mm; The lateral performance of its extruding position while welding can reach does not have more than 90% of position while welding of extruding, and it is carried out performance test, and its regulation disproportional extension strength reaches more than the 245MPa, tensile strength reaches more than the 265MPa, elongation after fracture reaches more than 9%.Its performance can be simplified the car body process flow for assembling, enhances productivity, shortens the production cycle, reduce production costs when guaranteeing that coal conveyor is with the aluminium alloy extrusions requirement of experiment, has tangible economic benefit.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; But those of ordinary skill in the art makes amendment to technical scheme of the present invention or is equal to replacement, and does not break away from the aim and the scope of technical scheme of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. a coal conveyor is characterized in that: may further comprise the steps with the method for manufacture of aluminium section bar:
A, casting rod batching: adopt 6061 alloys, the mass percent proportioning of each element of preparing burden satisfies following the requirement:
B, cast excellent melting: above-mentioned batching is dropped into successively carry out melting in the smelting furnace, the stove inner control is at 720 ℃-750 ℃, and uses flux to carry out refining to cover; Feed intake behind the 30min-60min; When treating to occur aluminium water in the stove, begin to stir, again through refining, skim obtain qualified composition after; Aluminium liquid is injected holding furnace from smelting furnace; Furnace temperature leaves standstill under 730 ℃ of-740 ℃ of conditions and keeps 20-30min, utilizes argon gas to take hydrogen in the aluminium liquid and fine impurities to surface then, thereby reduces the hydrogen richness in the aluminium liquid;
C, the casting of casting rod: adopt cunning casting, casting temp is controlled at 680 ℃-720 ℃, and casting speed is controlled at 26-42mm/min, and the casting cooling water flow is controlled at 950-1350L/min;
D, homogenizing are handled: homogenizing is handled and will in the homogeneous stove, be carried out, and temperature is incubated 10 hours between 555 ℃-560 ℃;
E, cast excellent surface treatment: cast excellent surperficial railway carriage 10mm, the roughness Ra of appearance is not less than 6.3 μ m;
F, the heating of casting rod: the casting rod is heated to be gradient-heated head, the tail temperature difference between 10 ℃～20 ℃ in excellent stove, and casting rod Heating temperature in stove is 510 ± 10 ℃;
G, mold heated: mould is incubated 3-8 hour with 500 ± 10 ℃ in the mold heated stove;
H, extrusion production: casting rod, mold heated are pushed after accomplishing, and extrusion speed is 3.0 ± 0.3m/min;
I, press quenching: its temperature was not less than 500 ℃ and gets into quench zone when extruded section went out the mould mouth, and the quenching mode is chosen as high wind and cooperates water spray quenching;
J, section bar timeliness: finish to carry out timeliness within back 8 hours in extruding, aging temp is 175 ℃, and soaking time is 8h, can obtain required coal conveyor and use aluminium section bar.
2. coal conveyor according to claim 1 is characterized in that with the method for manufacture of aluminium section bar: among the step c, casting speed is 36mm/min.
3. coal conveyor according to claim 1 and 2 is characterized in that with the method for manufacture of aluminium section bar: among the step h, extrusion speed is 3.0m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460074XA CN102505088A (en) | 2011-12-31 | 2011-12-31 | Method for manufacturing aluminum profiles used for coal cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460074XA CN102505088A (en) | 2011-12-31 | 2011-12-31 | Method for manufacturing aluminum profiles used for coal cars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102505088A true CN102505088A (en) | 2012-06-20 |
Family
ID=46217218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110460074XA Pending CN102505088A (en) | 2011-12-31 | 2011-12-31 | Method for manufacturing aluminum profiles used for coal cars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102505088A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568187A (en) * | 2016-01-21 | 2016-05-11 | 东北大学 | Technological method for carrying out solid solution and aging thermal treatment on 6061 aluminum alloy |
| CN105945516A (en) * | 2016-04-29 | 2016-09-21 | 广州美的华凌冰箱有限公司 | Manufacturing method for storage rack decoration strip and storage rack assembly |
| CN106756325A (en) * | 2016-12-30 | 2017-05-31 | 中山瑞泰铝业有限公司 | A kind of Al Mg Si Cu alloys and its preparation method and application |
| CN106834983A (en) * | 2017-01-04 | 2017-06-13 | 广东坚美铝型材厂（集团）有限公司 | A kind of method of the press quenching extruding of aluminium alloy |
| CN107475648A (en) * | 2017-08-16 | 2017-12-15 | 天津忠旺铝业有限公司 | A kind of stabilization process of 5383 aluminium alloy |
| CN108161337A (en) * | 2018-04-09 | 2018-06-15 | 安徽唯诗杨信息科技有限公司 | A kind of aluminium section material processing method and its processing positioning device |
| CN108188190A (en) * | 2017-12-28 | 2018-06-22 | 淮安和通汽车零部件有限公司 | One mould has more extrusion die, Extrusion Process of Aluminum Alloy Profile system and founding expressing technique |
| CN110157961A (en) * | 2019-06-13 | 2019-08-23 | 江苏银奕达科技股份有限公司 | A kind of high-strength automotive anti-collision beam profile production technology |
| CN112695233A (en) * | 2020-11-24 | 2021-04-23 | 宁波科诺精工科技有限公司 | Preparation method of aluminum alloy |
| CN114574738A (en) * | 2022-03-02 | 2022-06-03 | 湖南中创空天新材料股份有限公司 | 6061 aluminum alloy for automobile hub and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239371A (en) * | 2008-03-14 | 2008-08-13 | 东北大学 | Oil lubricating electromagnetic vertical type semi-continuous casting method and crystallizer of magnesium alloy ingot blank |
| CN101284353A (en) * | 2008-06-06 | 2008-10-15 | 中国铝业股份有限公司 | Production process of ABS valve body material for cars |
| CN101805837A (en) * | 2010-04-27 | 2010-08-18 | 辽宁忠旺集团有限公司 | Manufacture method of aluminum alloy section for track traffic conductor rail |
-
2011
- 2011-12-31 CN CN201110460074XA patent/CN102505088A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239371A (en) * | 2008-03-14 | 2008-08-13 | 东北大学 | Oil lubricating electromagnetic vertical type semi-continuous casting method and crystallizer of magnesium alloy ingot blank |
| CN101284353A (en) * | 2008-06-06 | 2008-10-15 | 中国铝业股份有限公司 | Production process of ABS valve body material for cars |
| CN101805837A (en) * | 2010-04-27 | 2010-08-18 | 辽宁忠旺集团有限公司 | Manufacture method of aluminum alloy section for track traffic conductor rail |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568187B (en) * | 2016-01-21 | 2017-05-31 | 东北大学 | A kind of process of the electric current solid-solution and aging heat treatment of 6061 aluminium alloy |
| CN105568187A (en) * | 2016-01-21 | 2016-05-11 | 东北大学 | Technological method for carrying out solid solution and aging thermal treatment on 6061 aluminum alloy |
| CN105945516A (en) * | 2016-04-29 | 2016-09-21 | 广州美的华凌冰箱有限公司 | Manufacturing method for storage rack decoration strip and storage rack assembly |
| CN106756325A (en) * | 2016-12-30 | 2017-05-31 | 中山瑞泰铝业有限公司 | A kind of Al Mg Si Cu alloys and its preparation method and application |
| CN106834983B (en) * | 2017-01-04 | 2018-07-20 | 广东坚美铝型材厂（集团）有限公司 | A kind of method that the press quenching of aluminium alloy squeezes |
| CN106834983A (en) * | 2017-01-04 | 2017-06-13 | 广东坚美铝型材厂（集团）有限公司 | A kind of method of the press quenching extruding of aluminium alloy |
| CN107475648A (en) * | 2017-08-16 | 2017-12-15 | 天津忠旺铝业有限公司 | A kind of stabilization process of 5383 aluminium alloy |
| CN108188190A (en) * | 2017-12-28 | 2018-06-22 | 淮安和通汽车零部件有限公司 | One mould has more extrusion die, Extrusion Process of Aluminum Alloy Profile system and founding expressing technique |
| CN108161337A (en) * | 2018-04-09 | 2018-06-15 | 安徽唯诗杨信息科技有限公司 | A kind of aluminium section material processing method and its processing positioning device |
| CN110157961A (en) * | 2019-06-13 | 2019-08-23 | 江苏银奕达科技股份有限公司 | A kind of high-strength automotive anti-collision beam profile production technology |
| CN112695233A (en) * | 2020-11-24 | 2021-04-23 | 宁波科诺精工科技有限公司 | Preparation method of aluminum alloy |
| CN114574738A (en) * | 2022-03-02 | 2022-06-03 | 湖南中创空天新材料股份有限公司 | 6061 aluminum alloy for automobile hub and preparation method thereof |
| CN114574738B (en) * | 2022-03-02 | 2023-10-13 | 湖南中创空天新材料股份有限公司 | 6061 aluminum alloy for automobile hub and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102505088A (en) | Method for manufacturing aluminum profiles used for coal cars | |
| CN102505087B (en) | Method for manufacturing aluminum alloy section material for floor of rail transport car body | |
| CN102489974B (en) | Method for manufacturing aluminum alloy section for top plate of rail transit vehicle body | |
| CN102505086B (en) | Method for manufacturing aluminum alloy profiles for side walls of rail transit vehicles | |
| CN102505102B (en) | Method for manufacturing aluminum alloy section for underframe of rail transit vehicle body | |
| CN102492904B (en) | Extrusion processing technology of cylinder block aluminum alloy section | |
| CN107805745B (en) | A kind of high-strength weathering aluminum alloy conductor rail profile and preparation method thereof | |
| CN108251723B (en) | Al-Zn-Mg alloy profile for rail transit vehicle and preparation method thereof | |
| CN102492877B (en) | Extruding processing technology of aluminium alloy tubing with large diameter | |
| CN103205617B (en) | Be applicable to 7003T5 aluminium alloy and the production technique thereof of the manufacture of high ferro car body | |
| CN101722381A (en) | Aluminum alloy solder wire for rapid trains and manufacturing method thereof | |
| CN107904498B (en) | Carburized bearing steel for railway wagon and preparation method thereof | |
| CN104388777A (en) | High-strength aluminum alloy slab and manufacturing method thereof | |
| CN104131202B (en) | The short process making method of 6061 aluminum alloy die forgings | |
| CN110616301B (en) | Production method for improving precipitation strengthening effect of Ti microalloyed hot-rolled high-strength steel on line | |
| CN104233129A (en) | Method for producing high-magnesium aluminum alloy sheets | |
| CN101987330A (en) | Manufacturing method of super-thick laminar tearing resisting steel plate | |
| CN104152824B (en) | A kind of high-performance 5050 aluminium alloy extrusions production technologies | |
| CN106636798A (en) | Liquid forging process method for 6061-material commercial vehicle aluminium alloy hub | |
| CN110592446A (en) | Novel aluminum alloy material for lightweight axle box of high-speed passenger train bogie and preparation method thereof | |
| CN104259781B (en) | The manufacture method of cargo train compartment aluminum alloy plate materials | |
| KR101757733B1 (en) | Method for manufacturing of Al-Zn-Mg-Cu alloy sheet with refined crystal grains | |
| CN111690847A (en) | Aluminum alloy profile and preparation method thereof | |
| CN114250387A (en) | Aluminum alloy and preparation method thereof | |
| CN108149052B (en) | Graphene reinforced aluminum-based composite material for high-speed rail train carriage body and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120620 |