CN102010959B - Homogenizing post-treatment method of steel aluminum-9-boron nitride semi-solid composite board - Google Patents
Homogenizing post-treatment method of steel aluminum-9-boron nitride semi-solid composite board Download PDFInfo
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- CN102010959B CN102010959B CN2010106138958A CN201010613895A CN102010959B CN 102010959 B CN102010959 B CN 102010959B CN 2010106138958 A CN2010106138958 A CN 2010106138958A CN 201010613895 A CN201010613895 A CN 201010613895A CN 102010959 B CN102010959 B CN 102010959B
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Abstract
The invention discloses a homogenizing post-treatment method of a steel aluminum-9-boron nitride semi-solid composite board and belongs to the research field of the steel aluminum-9-boron nitride semi-solid composite board interfacial shear strength room temperature rolling post-treatment. The method is as follows: two-pass rolling treatment is performed on a steel aluminum-9-boron nitride semi-solid composite board composed of a 08Al steel plate of which the thickness is 1.2mm and an aluminum-9-boron nitride coating layer is 3.0mm on a precision rolling mill at the room temperature under the conditions that total reduction rate is 0.6% and the pass reduction rate ratio of the first pass to the second pass is (1:3.5)-(1:1). The shear strength difference of the transverse interface of the composite board can be reduced to less than 1.8Mpa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel aluminium 9 SP 1 semisolid-state clad plates.
Background technology
Publication number: CN101117696A, denomination of invention: on " a kind of post-treating method of steel-back aluminium-based semisolid-state clad plate ", set forth the rolling post-treating method of room temperature of steel-back aluminium-based semisolid-state clad plate; Promptly; At room temperature, on finishing rolling mill, to steel-back aluminium-based semisolid-state clad plate; Be rolled aftertreatment; 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 shrinkage in the composite solidification process of cooling, and then reduce composition board interface additional stress, the composition board interface shear strength is improved.This method technology is simple, composition board 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 composition board interface shear strength usually, can be in composition board interface shear strength difference transversely up to 2.6～3.2MPa.
Steel aluminium 9 SP 1 semisolid-state clad plates are to adopt semisolid-state clad plate that solid-state steel plate and aluminium 9 SP 1 semi solid slurries are composited, that be made up of thick 08Al steel plate of 1.2mm and the thick aluminium 9 SP 1 coating of 3.0mm; When adopting the CN101117696A patented process to be rolled aftertreatment; At ideal draft comparatively is under 0.6% condition; Because aluminium 9 SP 1 coating are at composition board deflection skewness transversely, cause the difference between the composition board interface shear strength transversely can be up to 2.8MPa.
For steel aluminium 9 SP 1 semisolid-state clad plates, the difference of transverse interface shearing resistance is more little, and work reliability is high more, and range of application is wide more, so the difference of steel aluminium 9 SP 1 semisolid-state clad plate transverse interface shearing resistances 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-treating methods of 9 SP 1 semisolid-state clad plate room temperatures " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel aluminium 9 SP 1 semisolid-state clad plate transverse interface shearing resistance distributing homogeneities is provided, further dwindles the difference of composition board transverse interface shearing resistance.
The technical solution adopted for the present invention to solve the technical problems is: to steel aluminium 9 SP 1 semisolid-state clad plates; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 0.6%, first passage and second passage and be 1: 3.5～1: 1 the rolling processing of two passages.
The invention has the beneficial effects as follows: for the rolling processing of composition board room temperature; Because roller is jumped, the existence of the unequal factor of matrix; Transversely produce nonaffine deformation inevitably in composition board, cause the difference of composition board transverse interface shearing resistance, and draft is big more; Distortion transversely is inhomogeneous more, and the difference of composition board transverse interface shearing resistance is big more.If nonaffine deformation transversely with the rolling generation of single pass heavy reduction rate; Decompose in the middle of the little draft distortion of multi-pass; Then can one-pass roller be handled the big-difference of the transverse deformation amount that produces; Be decomposed into the little difference of the transverse deformation amount of multi-pass, and pass through the optimum combination of each percentage pass reduction, can also further coordinate the difference of transverse deformation amount.The present invention utilizes the optimum combination of the percentage pass reduction of first passage and second passage further to reduce and coordinated the difference of the transverse deformation amount of the rolling processing of room temperature, thereby has reached the purpose that reduces composition board transverse interface shearing resistance difference.Utilize the present invention; Steel aluminium 9 SP 1 semisolid-state clad plates are carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 1.8MPa, reduce by 36% at least than adopting the CN101117696A patented process to carry out the 2.8MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel aluminium 9 SP 1 semisolid-state clad plates; At room temperature; On finishing rolling mill; To the steel aluminium 9 SP 1 semisolid-state clad plates that constitute by thick 08Al steel plate of 1.2mm and the thick aluminium 9 SP 1 coating of 3.0mm; Carry out two passages, total draft and be 0.6% rolling aftertreatment, the big-difference of the aluminium 9 SP 1 coating transverse deformation amounts that the rolling aftertreatment of single pass heavy reduction rate is produced, decomposing and coordinating is the little difference of the aluminium 9 SP 1 coating transverse deformation amounts that produce of the rolling aftertreatment of the little draft of two passages; Thereby further reduced composition board transverse interface shearing resistance difference, improved the distributing homogeneity of steel aluminium 9 SP 1 semisolid-state clad plate interface shear strengths.
Embodiment one, to steel aluminium 9 SP 1 semisolid-state clad plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 3.5 the rolling aftertreatment of two passage room temperatures, is 1.8MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel aluminium 9 SP 1 semisolid-state clad plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 3 the rolling aftertreatment of two passage room temperatures, is 1.7MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel aluminium 9 SP 1 semisolid-state clad plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 2.5 the rolling aftertreatment of two passage room temperatures, is 1.6MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel aluminium 9 SP 1 semisolid-state clad plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 2 the rolling aftertreatment of two passage room temperatures, is 1.7MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel aluminium 9 SP 1 semisolid-state clad plates, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 1 the rolling aftertreatment of two passage room temperatures, is 1.8MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel aluminium 9 SP 1 semisolid-state clad plates that constitute by thick 08A1 steel plate of 1.2mm and the thick aluminium 9 SP 1 coating of 3.0mm; The percentage pass reduction ratio of carrying out total draft and be 0.6%, first passage and second passage is 1: 3.5～1: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 1.8MPa.
Claims (1)
1. the even post-treating method of steel aluminium 9 SP 1 semisolid-state clad plates; At room temperature; On finishing rolling mill, the steel aluminium 9 SP 1 semisolid-state clad plates that are made up of thick 08Al steel plate of 1.2mm and the thick aluminium 9 SP 1 coating of 3.0mm are rolled aftertreatment, it is characterized in that; To steel aluminium 9 SP 1 semisolid-state clad plates, carry out total draft and be percentage pass reduction ratio 0.6%, first passage and second passage and be 1: 3.5～1: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138958A CN102010959B (en) | 2010-12-30 | 2010-12-30 | Homogenizing post-treatment method of steel aluminum-9-boron nitride semi-solid composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138958A CN102010959B (en) | 2010-12-30 | 2010-12-30 | Homogenizing post-treatment method of steel aluminum-9-boron nitride semi-solid composite board |
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| Publication Number | Publication Date |
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| CN102010959A CN102010959A (en) | 2011-04-13 |
| CN102010959B true CN102010959B (en) | 2012-06-20 |
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| CN2010106138958A Expired - Fee Related CN102010959B (en) | 2010-12-30 | 2010-12-30 | Homogenizing post-treatment method of steel aluminum-9-boron nitride semi-solid composite board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100427231C (en) * | 2006-09-01 | 2008-10-22 | 北京交通大学 | Composite method for casting and rolling composite plate of steel, aluminum, and graphite |
| CN100392116C (en) * | 2006-09-12 | 2008-06-04 | 北京交通大学 | Method for post-processing composite board of steel aluminum 7 of graphite solid liquid phases |
| CN100535172C (en) * | 2007-09-05 | 2009-09-02 | 北京交通大学 | Post-treating method for steel-back aluminium-based semisolid-state clad plate |
| CN100479936C (en) * | 2007-09-05 | 2009-04-22 | 北京交通大学 | Steel aluminum-5 plumbago composite board casting, rolling and compositing method |
| CN100479935C (en) * | 2007-09-05 | 2009-04-22 | 北京交通大学 | Steel aluminum-7 plumbago composite board casting, rolling and compositing method |
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