CN102162023B - Uniform post-treatment method for steel aluminum 9 graphite solid-liquid phase composite board - Google Patents
Uniform post-treatment method for steel aluminum 9 graphite solid-liquid phase composite board Download PDFInfo
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- CN102162023B CN102162023B CN2010106138939A CN201010613893A CN102162023B CN 102162023 B CN102162023 B CN 102162023B CN 2010106138939 A CN2010106138939 A CN 2010106138939A CN 201010613893 A CN201010613893 A CN 201010613893A CN 102162023 B CN102162023 B CN 102162023B
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Abstract
The invention discloses a uniform post-treatment method for a steel aluminum 9 graphite solid-liquid phase composite board, and belongs to the field of the research of room temperature rolling post-treatment of interfacial shear strength of steel aluminum 9 graphite solid-liquid phase composite boards. The two-pass rolling treatment that the total reduction ratio is 1.6 percent and the proportion of pass reduction ratios of a first pass and a second pass is (1:3)-(1:1) is performed on the steel aluminum 9 graphite solid-liquid phase composite board formed by a 08A1 steel plate with the thickness of 1.2mm and an aluminum 9 graphite cladding layer with the thickness of 2.5mm on a precision rolling mill at room temperature. The difference value of transverse interfacial shear strength of the composite board can be reduced to be less than 1.9MPa.
Description
Technical field
The present invention relates to a kind of rolling post-processing approach of interface shear strength room temperature of steel aluminium 9 graphite solid-liquid-phase composite plates.
Background technology
Publication number: CN1710114A, denomination of invention: on " a kind of post-processing approach of steel-back aluminium-base solid-liquid-phase composite plate ", set forth the rolling post-processing approach of room temperature of steel-back aluminium-base solid-liquid-phase composite plate; Promptly; At room temperature, on finishing rolling mill, to steel-back aluminium-base solid-liquid-phase composite plate; Be rolled post processing; Utilize the difference of aluminium base coating that rolling processing produces and steel backing deflection to remedy the difference of aluminium base coating and steel backing amount of contraction in the composite solidification cooling procedure, and then reduce composite plate interface additional stress, the composite plate interface shear strength is improved.This method technology is simple, composite plate interface shear strength value improves bigger; But; Because this method is carrying out there is aluminium base coating deflection non-uniform phenomenon when one-pass roller is handled; Therefore cause the uneven distribution of composite plate interface shear strength usually, can be in composite plate interface shear strength difference transversely up to 3～5MPa.
Steel aluminium 9 graphite solid-liquid-phase composite plates are the solid-liquid-phase composite plates that are made up of thick 08Al steel plate of 1.2mm and the thick aluminium 9 graphite coating of 2.5mm; When adopting the CN1710114A patented method to be rolled post processing; At comparatively desirable reduction ratio is under 1.6% condition; Because aluminium 9 graphite coating are at composite plate deflection skewness transversely, cause the difference between the composite plate interface shear strength transversely can be up to 3MPa.
For steel aluminium 9 graphite solid-liquid-phase composite plates, the difference of transverse interface shear strength is more little, and dependability is high more, and range of application is wide more, so the difference of steel aluminium 9 graphite solid-liquid-phase composite plate transverse interface shear strengths is more little good more.
Summary of the invention
Technical problem to be solved by this invention is; Overcome the deficiency of the existing steel aluminium rolling post-processing approach of 9 graphite solid-liquid-phase composite plate room temperatures " transverse interface shear strength difference is big "; A kind of post-processing approach that can improve steel aluminium 9 graphite solid-liquid-phase composite plate transverse interface shear strength distributing homogeneities is provided, further dwindles the difference of composite plate transverse interface shear strength.
The technical solution adopted for the present invention to solve the technical problems is: to steel aluminium 9 graphite solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, carry out total reduction ratio and be percentage pass reduction ratio 1.6%, first passage and second passage and be 1: 3～1: 1 the rolling processing of two passages.
The invention has the beneficial effects as follows: for the rolling processing of composite plate room temperature; Because roller is jumped, the existence of the unequal factor of matrix; Transversely produce inhomogeneous deformation inevitably in composite plate, cause the difference of composite plate transverse interface shear strength, and reduction ratio is big more; Distortion transversely is inhomogeneous more, and the difference of composite plate transverse interface shear strength is big more.If inhomogeneous deformation transversely with the rolling generation of single pass heavy reduction rate; Decompose in the middle of the little reduction ratio distortion of multi-pass; Then can one-pass roller be handled the big-difference of the transversely deforming amount that produces; Be decomposed into the little difference of the transversely deforming amount of multi-pass, and pass through the optimum organization of each percentage pass reduction, can also further coordinate the difference of transversely deforming amount.The present invention utilizes the optimum organization of the percentage pass reduction of first passage and second passage further to reduce and coordinated the difference of the transversely deforming amount of the rolling processing of room temperature, thereby has reached the purpose that reduces composite plate transverse interface shear strength difference.Utilize the present invention; Steel aluminium 9 graphite solid-liquid-phase composite plates are carried out the rolling processing of room temperature; Can composite plate transverse interface shear strength difference be reduced in the 1.9MPa, reduce by 37% at least than adopting the CN1710114A patented method to carry out the 3MPa that the rolling processing of room temperature obtains.
The specific embodiment
A kind of even post-processing approach of steel aluminium 9 graphite solid-liquid-phase composite plates; At room temperature; On finishing rolling mill; To the steel aluminium 9 graphite solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick aluminium 9 graphite coating of 2.5mm; Carry out two passages, total reduction ratio and be 1.6% rolling post processing, the big-difference of the aluminium 9 graphite coating transversely deforming amounts that the rolling post processing of single pass heavy reduction rate is produced, decomposing and coordinating is the little difference of the aluminium 9 graphite coating transversely deforming amounts that produce of the rolling post processing of the little reduction ratio of two passages; Thereby further reduced composite plate transverse interface shear strength difference, improved the distributing homogeneity of steel aluminium 9 graphite solid-liquid-phase composite plate interface shear strengths.
Embodiment one, to steel aluminium 9 graphite solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 3 the rolling post processing of two passage room temperatures, is 1.9MPa in composite plate interface shear strength difference transversely.
Embodiment two, to steel aluminium 9 graphite solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 2.5 the rolling post processing of two passage room temperatures, is 1.8MPa in composite plate interface shear strength difference transversely.
Embodiment three, to steel aluminium 9 graphite solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 2 the rolling post processing of two passage room temperatures, is 1.6MPa in composite plate interface shear strength difference transversely.
Embodiment four, to steel aluminium 9 graphite solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 1.5 the rolling post processing of two passage room temperatures, is 1.7MPa in composite plate interface shear strength difference transversely.
Embodiment five, to steel aluminium 9 graphite solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 1 the rolling post processing of two passage room temperatures, is 1.8MPa in composite plate interface shear strength difference transversely.
It is thus clear that; To the steel aluminium 9 graphite solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick aluminium 9 graphite coating of 2.5mm; The percentage pass reduction ratio of carrying out total reduction ratio and be 1.6%, first passage and second passage is 1: 3～1: 1 the rolling post processing of two passage room temperatures, and composite plate interface shear strength difference transversely is reduced in the 1.9MPa.
Claims (1)
1. the even post-processing approach of steel aluminium 9 graphite solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, the steel aluminium 9 graphite solid-liquid-phase composite plates that are made up of thick 08Al steel plate of 1.2mm and the thick aluminium 9 graphite coating of 2.5mm are rolled post processing, it is characterized in that; To steel aluminium 9 graphite solid-liquid-phase composite plates, carry out total reduction ratio and be percentage pass reduction ratio 1.6%, first passage and second passage and be 1: 3～1: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138939A CN102162023B (en) | 2010-12-30 | 2010-12-30 | Uniform post-treatment method for steel aluminum 9 graphite solid-liquid phase composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138939A CN102162023B (en) | 2010-12-30 | 2010-12-30 | Uniform post-treatment method for steel aluminum 9 graphite solid-liquid phase composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162023A CN102162023A (en) | 2011-08-24 |
| CN102162023B true CN102162023B (en) | 2012-07-11 |
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| CN2010106138939A Expired - Fee Related CN102162023B (en) | 2010-12-30 | 2010-12-30 | Uniform post-treatment method for steel aluminum 9 graphite solid-liquid phase composite board |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117696A (en) * | 2007-09-05 | 2008-02-06 | 北京交通大学 | Post-treating method for steel-back aluminium-based semisolid-state clad plate |
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2010
- 2010-12-30 CN CN2010106138939A patent/CN102162023B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117696A (en) * | 2007-09-05 | 2008-02-06 | 北京交通大学 | Post-treating method for steel-back aluminium-based semisolid-state clad plate |
Non-Patent Citations (2)
| Title |
|---|
| 宋仁伯等.半固态钢铁材料轧制产品的力学特性.《金属学报》.2002,第38卷(第2期),153-156. * |
| 张华等.钢-半固态Al-7石墨复合界面特性.《清华大学学报(自然科学版)》.2004,第44卷(第11期),1468-1470. * |
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| CN102162023A (en) | 2011-08-24 |
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Granted publication date: 20120711 Termination date: 20121230 |