CN102010948B - Homogenization postprocessing method for steel-aluminium semi-solid clad plate - Google Patents
Homogenization postprocessing method for steel-aluminium semi-solid clad plate Download PDFInfo
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- CN102010948B CN102010948B CN2010106137211A CN201010613721A CN102010948B CN 102010948 B CN102010948 B CN 102010948B CN 2010106137211 A CN2010106137211 A CN 2010106137211A CN 201010613721 A CN201010613721 A CN 201010613721A CN 102010948 B CN102010948 B CN 102010948B
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Abstract
The invention discloses a homogenization postprocessing method for a steel-aluminium semi-solid clad plate, and belongs to the field of study of steel-aluminium semi-solid clad plate interface shear strength room-temperatue rolling postprocessing. In the method, the steel-aluminium semi-solid clad plate consisting of a 08 Al steel plate with the thickness of 1.2mm and an industrial pure aluminium cladding with the thickness of 2.5mm is subjected to two-pass rolling treatment on a precision mill at room temperature, wherein the total reduction rate is 1.0 percent, and the reduction rate ratio of the first pass to the second pass is 1:4.5-1:1, and the horizontal interface shear strength difference of the clad plate is reduced within 2.3MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel aluminium semisolid-state clad plate.
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 semisolid-state clad plate is to adopt semisolid-state clad plate that solid-state steel plate and aluminium semi solid slurry are composited, that be made up of thick 08Al steel plate of 1.2mm and the thick commercial-purity aluminium coating of 2.5mm; Be under 1.0% the rolling post-treatment condition at the disclosed draft of patent CN101117696A; Because aluminum cladding is at composition board deflection skewness transversely, cause the difference between the composition board interface shear strength transversely can be up to 3.2MPa.
For steel aluminium semisolid-state clad plate, 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 semisolid-state clad plate transverse interface shearing resistance is more little good more.
Summary of the invention
Technical problem to be solved by this invention is; Overcome the deficiency of the existing rolling post-treating method of steel aluminium semisolid-state clad plate room temperature " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel aluminium semisolid-state clad plate transverse interface shearing resistance distributing homogeneity 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 semisolid-state clad plate; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 1.0%, first passage and second passage and be 1: 4.5～1: 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 semisolid-state clad plate is carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 2.3MPa, reduce by 39% at least than adopting the CN101117696A patented process to carry out the 3.2MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel aluminium semisolid-state clad plate; At room temperature; On finishing rolling mill,, carry out two passages, total draft and be 1.0% rolling aftertreatment to the steel aluminium semisolid-state clad plate that constitutes by thick 08Al steel plate of 1.2mm and the thick commercial-purity aluminium coating of 2.5mm; The big-difference of the aluminum cladding transverse deformation amount that the rolling aftertreatment of single pass heavy reduction rate is produced; Decomposition and coordination are the little difference of the aluminum cladding transverse deformation amount of the rolling aftertreatment generation of the little draft of two passages, thereby have further reduced composition board transverse interface shearing resistance difference, have improved the distributing homogeneity of steel aluminium semisolid-state clad plate interface shear strength.
Embodiment one, to steel aluminium semisolid-state clad plate, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 4.5 the rolling aftertreatment of two passage room temperatures, is 2.3MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel aluminium semisolid-state clad plate, 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 1.9MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel aluminium semisolid-state clad plate, 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 1.5MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel aluminium semisolid-state clad plate, 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 semisolid-state clad plate, 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 2.1MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel aluminium semisolid-state clad plate that constitutes by thick 08Al steel plate of 1.2mm and the thick commercial-purity aluminium coating of 2.5mm; The percentage pass reduction ratio of carrying out total draft and be 1.0%, first passage and second passage is 1: 4.5～1: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 2.3MPa.
Claims (1)
1. the even post-treating method of a steel aluminium semisolid-state clad plate; At room temperature; On finishing rolling mill, the steel aluminium semisolid-state clad plate that is made up of thick 08Al steel plate of 1.2mm and the thick commercial-purity aluminium coating of 2.5mm is rolled aftertreatment, it is characterized in that; To steel aluminium semisolid-state clad plate, carry out total draft and be percentage pass reduction ratio 1.0%, first passage and second passage and be 1: 4.5～1: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106137211A CN102010948B (en) | 2010-12-30 | 2010-12-30 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106137211A CN102010948B (en) | 2010-12-30 | 2010-12-30 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010948A CN102010948A (en) | 2011-04-13 |
| CN102010948B true CN102010948B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106137211A Expired - Fee Related CN102010948B (en) | 2010-12-30 | 2010-12-30 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710114A (en) * | 2005-07-07 | 2005-12-21 | 北京交通大学 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
| 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 CN2010106137211A patent/CN102010948B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710114A (en) * | 2005-07-07 | 2005-12-21 | 北京交通大学 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
| 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 (1)
| 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),第153-156页. * |
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| CN102010948A (en) | 2011-04-13 |
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Granted publication date: 20120620 Termination date: 20121230 |