CN103103462A - Process method for expanding elongation of 7N01-T5 aluminum alloy section - Google Patents
Process method for expanding elongation of 7N01-T5 aluminum alloy section Download PDFInfo
- Publication number
- CN103103462A CN103103462A CN2012105330649A CN201210533064A CN103103462A CN 103103462 A CN103103462 A CN 103103462A CN 2012105330649 A CN2012105330649 A CN 2012105330649A CN 201210533064 A CN201210533064 A CN 201210533064A CN 103103462 A CN103103462 A CN 103103462A
- Authority
- CN
- China
- Prior art keywords
- elongation
- aluminum alloy
- process method
- alloy section
- aluminium alloy
- 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
Images
Landscapes
- Continuous Casting (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention provides a process method for expanding the elongation of a 7N01-T5 aluminum alloy section, relates to a production process method of an aluminum alloy product, and in particular relates to the process method for expanding the elongation of a 7N01-T5 aluminum alloy product, in order to provide the process method for expanding the cross section elongation of a 7N01-T5 aluminum alloy section product in aging steps. The process method comprises the following aging steps: standing the 7N01-T5 aluminum alloy section under the environment condition of 105+/-5 DEG C for 10 hours; and then also standing the 7N01-T5 aluminum alloy section under the environment condition of 105+/-5 DEG C for 10 hours.
Description
Technical field
The present invention relates to a kind of producing and manufacturing technique of Al-alloy products, particularly relate to a kind of processing method of the raising elongation for the 7N01-T5 Al-alloy products.
Background technology
The 7N01 alloy is the aluminium alloy trade mark that Japan adopts, this alloy is the Japanese Al-Zn-Mg line aluminium alloy of developing Shinkanson High Speed Train and developing, and the intensity after this Alloy Extrusion Product thermal treatment is higher, good welding performance, corrosion resistance nature is also better, is applicable to the welding materials such as vehicle structure.When China researches and develops bullet train, introduce Japanese manufacturing technology, also introduced this alloy simultaneously.This alloy extrudate be mainly used in bullet train draw beam, end carriage, with end snubber, base, threshold equivalent-load position, wherein former of the power take draw beam as train especially, be the main load carriers such as launch train acceleration, braking deceleration.Provided the process flow sheet of this alloy extrusion in Fig. 1 of present specification accompanying drawing, namely prepare burden successively, melting, casting, homogenizing, ingot bar processing, ingot bar heating, extruding, admittedly molten thermal treatment, tension force alignment, sawing, rectification, timeliness, packing and warehouse-in online, also need extrusion machine and mould are heated before extruding, need to take a sample after sawing, after timeliness, test." the aluminium alloy technical application handbook that can publish referring to metallurgical industry press about the technology of aluminium alloy processing.
After " 07.23 " Wenzhou Line bullet train Serious Accidents in 2011, the Ministry of Railways requires the bullet train manufacturer to carry out the comprehensive security thorough examination to bullet train, for evading the security risk of bullet train, significant points has been proposed higher technical requirements, Ministry of Railways south car four directions rolling stock company limited claims, the performance of 7N01-T5 in the situation that tensile strength, disproportional elongation strengths standard-required are constant, is brought up to 16% with the section elongation, especially for the draw beam section bar.Aspect material mechanical performance, for same alloying constituent, the material of same as-heat-treated condition, the grain fineness number of Properties and Microstructure is relevant, relevant with admittedly molten thermal treatment process state of a control, relevant with the technology controlling and process state of ageing treatment, and with regard to structural constituent control, the method for molten thermal treatment control has been grasped by those of ordinary skills in industrial production admittedly, relevant research and science and technology report are to the utmost rare, and for selection and the control of institution of prescription, become the field of the large quantity research of world aluminum production.Although relevant research is more, its concrete timeliness way will not disclose.The heat treated institution of prescription that Japan's aluminium industry standard technique is introduced 7N01-T5 is 120 ℃ * 24h, " aluminium standard and data " introduce after the thermal treatment of 7005-T53 institution of prescription is 100-110 ℃ * 8h+145-155 ℃ * 16h, and 7005-T53 is the alloy that approaches with 7N01-T5.Generally, people produce according to standard, but we find more unacceptable product after 7N01-T5 is produced according to 120 ℃ * 24h of institution of prescription.By analysis, goods admittedly melt online thermal treatment at goods and obtain supersaturated solid solution, strengthening phase is inhomogeneous at the distributed pole of tissue, form the phenomenon that a large amount of strengthening phase is assembled, and must form a large amount of strengthening phases poor district in GP district on every side, give timeliness and be exactly making strengthening phase from intensive GP district dispersion, peripherad poor district diffusion, and this strengthening phase dispersion is more fine and smooth better, distributes more even better, therefore needs to extend low temperature and gives aging time.It is insufficient that low temperature gives the degree that timeliness, strengthening phase disperse distribute, and with the complete coherence of aluminium lattice matrix, high-temperature aging is exactly to change to incomplete coherence for the strengthening phase with the complete coherence of matrix, further strengthen for material, but need the control section strengthening phase to break away from matrix, form the excessive phase amount of non-coherence, forming even fully independently, stable phase is diffused into grain boundaries, crystal boundary situation for metal becomes heavy, reduces unit elongation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of processing method that can improve the raising 7N01-T5 aluminium alloy extrusions elongation of 7N01-T5 aluminium alloy type section product section elongation in the timeliness step.
The present invention improves the processing method of 7N01-T5 aluminium alloy extrusions elongation, comprise the timeliness step, wherein said timeliness step be the 7N01-T5 aluminium alloy extrusions was placed 10 hours under the envrionment conditions of 105 ± 5 ℃ after, then placed under the envrionment conditions of 150 ± 5 ℃ 10 hours.
The processing method difference from prior art that the present invention improves 7N01-T5 aluminium alloy extrusions elongation is the institution of prescription that the present invention does not adopt Its Relevant Technology Standards to provide, and makes the section elongation of 7N01-T5 aluminium alloy type section product be improved but optimized institution of prescription after by analysis.
Be described further below in conjunction with the processing method of accompanying drawing to raising 7N01-T5 aluminium alloy extrusions elongation of the present invention.
Description of drawings
Fig. 1 is the production technological process of 7N01-T5 aluminium alloy type section product.
Embodiment
First embodiment after in the timeliness step of draw beam production technique, the 7N01-T5 aluminium alloy extrusions being placed 10 hours under the envrionment conditions of 100 ℃, then placed 10 hours under the envrionment conditions of 155 ℃, and recording tensile strength through test is 330N/min
2, elongation is 18.5%, meets the requirements, and has improved elongation.
Second embodiment after in the timeliness step of draw beam production technique, the 7N01-T5 aluminium alloy extrusions being placed 10 hours under the envrionment conditions of 110 ℃, then placed 10 hours under the envrionment conditions of 145 ℃, and recording tensile strength through test is 340N/min
2, elongation is 18.2%, meets the requirements, and has improved elongation.
The 3rd embodiment after in the timeliness step of draw beam production technique, the 7N01-T5 aluminium alloy extrusions being placed 10 hours under the envrionment conditions of 105 ℃, then placed 10 hours under the envrionment conditions of 150 ℃, and recording tensile strength through test is 335N/min
2, elongation is 18.5%, meets the requirements, and has improved elongation.
Above-described embodiment is described the preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (1)
1. processing method that improves 7N01-T5 aluminium alloy extrusions elongation, comprise the timeliness step, it is characterized in that: described timeliness step is for after placing the 7N01-T5 aluminium alloy extrusions 10 hours under the envrionment conditions of 105 ± 5 ℃, then placement 10 hours under the envrionment conditions of 150 ± 5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105330649A CN103103462A (en) | 2012-12-11 | 2012-12-11 | Process method for expanding elongation of 7N01-T5 aluminum alloy section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105330649A CN103103462A (en) | 2012-12-11 | 2012-12-11 | Process method for expanding elongation of 7N01-T5 aluminum alloy section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103103462A true CN103103462A (en) | 2013-05-15 |
Family
ID=48311650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105330649A Pending CN103103462A (en) | 2012-12-11 | 2012-12-11 | Process method for expanding elongation of 7N01-T5 aluminum alloy section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103103462A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0265093A1 (en) * | 1986-09-30 | 1988-04-27 | Showa Aluminum Kabushiki Kaisha | Process for fabricating heat-exchangers |
| CN1692174A (en) * | 2002-09-21 | 2005-11-02 | 通用合金公司 | Aluminum-zinc-magnesium-copper alloy extrusion |
| CN101914710A (en) * | 2010-09-16 | 2010-12-15 | 东北轻合金有限责任公司 | Aluminum alloy sheet for high-speed train structure and manufacture thereof |
-
2012
- 2012-12-11 CN CN2012105330649A patent/CN103103462A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0265093A1 (en) * | 1986-09-30 | 1988-04-27 | Showa Aluminum Kabushiki Kaisha | Process for fabricating heat-exchangers |
| CN1692174A (en) * | 2002-09-21 | 2005-11-02 | 通用合金公司 | Aluminum-zinc-magnesium-copper alloy extrusion |
| CN101914710A (en) * | 2010-09-16 | 2010-12-15 | 东北轻合金有限责任公司 | Aluminum alloy sheet for high-speed train structure and manufacture thereof |
Non-Patent Citations (3)
| Title |
|---|
| 乔丽英等: "6N01和7N01铝合金挤压型材时效热处理", 《(重庆)中西部第二届有色金属工业发展论坛论文集》, 31 December 2009 (2009-12-31) * |
| 宋涛等: "7N01铝合金120℃单级时效的组织和性能", 《材料热处理学报》, vol. 32, no. 7, 31 July 2011 (2011-07-31) * |
| 张建波等: "自然时效对7N01铝合金组织和性能的影响", 《稀有金属》, vol. 36, no. 2, 31 March 2013 (2013-03-31) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Microstructure and properties of Mg–8Li–1Al–1Ce alloy | |
| CN100587091C (en) | Cu-Cr-Zr alloy preparation process for contact wire | |
| CN103898424B (en) | A kind of magnesium alloy grains method | |
| CN103305726B (en) | Method for preparing nanoscale silicon carbide aluminum alloy bar | |
| EP2274454B1 (en) | Alloy composition and preparation thereof | |
| CN113234949B (en) | Method for preparing regenerated wrought aluminum alloy from waste aluminum alloy | |
| CN105483464B (en) | A kind of Al Mg Si systems alloy material suitable for automobile bumper energy absorption box | |
| CN103173664A (en) | Al-Mg-Si-Cu alloy material and application thereof on aluminum control arm of automobile | |
| Peng et al. | Property and thermal stability of in situ composite Cu–Cr alloy contact cable | |
| CN109628812B (en) | Low-alloy high-performance superplastic magnesium alloy and preparation method thereof | |
| CN104975211A (en) | High-conductivity thermal-treatment type medium-strength aluminum alloy conducting filament | |
| CN108193093A (en) | A kind of vehicle energy absorption box aluminum alloy materials | |
| CN102703785B (en) | High-strength indirect-extruded Mg-Sn-based alloy and preparation method thereof | |
| CN105586520A (en) | High-strength magnesium alloy and method for preparing high-strength magnesium alloy by inducing orientation of precipitated phase to change | |
| CN104805385A (en) | Homogenization thermal-treatment method for ultra-large semi-continuous cast round ingot | |
| CN104651689A (en) | High thermal conductivity magnesium alloy used under high temperature and preparation method thereof | |
| CN102828133B (en) | Method for preparing ultrahigh strength high toughness magnesium alloy | |
| CN107338379A (en) | A kind of magnesium Tin-zinc-aluminium manganese wrought magnesium alloy and preparation method thereof | |
| CN108707800A (en) | Low content of rare earth magnesium alloy materials of a kind of high-strength plasticity and preparation method thereof | |
| CN105499302A (en) | Production method of pure copper stranded wire | |
| CN101994045B (en) | Aluminum-zirconium intermediate alloy and preparation method | |
| CN102002656B (en) | Method for refining precipitation or dispersion strengthening type block copper alloy crystal grains | |
| CN103789587A (en) | 3120 aluminum alloy aluminum foil applied to air-conditioner radiating fin and processing process thereof | |
| CN102747244A (en) | Method for compound modification refining of aluminum alloy cast structure | |
| CN101805866B (en) | Wrought magnesium alloy for high-speed extrusion 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |