CN102010957A - Uniform post-processing method of steel-aluminium 28 lead semisolid composite board - Google Patents
Uniform post-processing method of steel-aluminium 28 lead semisolid composite board Download PDFInfo
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- CN102010957A CN102010957A CN 201010613880 CN201010613880A CN102010957A CN 102010957 A CN102010957 A CN 102010957A CN 201010613880 CN201010613880 CN 201010613880 CN 201010613880 A CN201010613880 A CN 201010613880A CN 102010957 A CN102010957 A CN 102010957A
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Abstract
The present invention discloses a uniform post-processing method of steel-aluminium 28 lead semisolid composite board, belonging to the researching field of interface shearing strength room temperature rolling post-process of steel-aluminium 28 lead semisolid composite board; the method of the present invention carries through twice pass rolling processes with a total down rate at 1.6% and a down rate proportion of a first pass and a second pass at 6:1-3:1 for the steel-aluminium 28 lead semisolid composite board composed of a 08A1 steel plate 1.2mm in thickness and an aluminium 28 lead covering layer 2.5mm in thickness under room temperature and on a precise rolling mill; the difference value of transverse interface shearing strength of composite board can be reduced within 1.9MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel aluminium 28 lead semisolid composition board.
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 28 lead semisolid composition board is to adopt semisolid-state clad plate that solid-state steel plate and aluminium 28 lead semisolid slurry are composited, that be made of thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.5mm, be under 1.6% the rolling post-treatment condition at the disclosed draft of patent CN101117696A, because aluminium 28 plumbous coating are at composition board deflection skewness transversely, cause the difference between the composition board interface shear strength transversely can be up to 3.0MPa.
For steel aluminium 28 lead semisolid composition board, 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 28 lead semisolid composition board transverse interface shearing resistance is the smaller the better.
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 28 lead semisolid composition board room temperature " transverse interface shearing resistance difference is big ", a kind of post-treating method that can improve steel aluminium 28 lead semisolid composition board 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 28 lead semisolid composition board, at room temperature, on finishing rolling mill, carry out total draft and be percentage pass reduction ratio 1.6%, first passage and second passage and be 6: 1～3: 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, the difference that causes 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 one-pass roller can 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 the optimum combination by 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 28 lead semisolid composition board is carried out the rolling processing of room temperature, composition board transverse interface shearing resistance difference can be reduced in the 1.9MPa, reduce by 37% at least than adopting the CN101117696A patented method to carry out the 3.0MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel aluminium 28 lead semisolid composition board, at room temperature, on finishing rolling mill, to the steel aluminium 28 lead semisolid composition board that constitutes by thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.5mm, carry out two passages, total draft is 1.6% rolling aftertreatment, the big-difference of the aluminium 28 plumbous coating transverse deformation amounts that the rolling aftertreatment of single pass heavy reduction rate is produced, decomposition and coordination are the little difference of the aluminium 28 plumbous coating transverse deformation amounts of the rolling aftertreatment generation of the little draft of two passages, thereby further reduced composition board transverse interface shearing resistance difference, improved the distributing homogeneity of steel aluminium 28 lead semisolid composition board interface shear strength.
Embodiment one, to steel aluminium 28 lead semisolid composition board, the percentage pass reduction ratio of carrying out first passage and second passage is 6: 1 the rolling aftertreatment of two passage room temperatures, is 1.9MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel aluminium 28 lead semisolid composition board, the percentage pass reduction ratio of carrying out first passage and second passage is 5: 1 the rolling aftertreatment of two passage room temperatures, is 1.7MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel aluminium 28 lead semisolid composition board, the percentage pass reduction ratio of carrying out first passage and second passage is 4: 1 the rolling aftertreatment of two passage room temperatures, is 1.5MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel aluminium 28 lead semisolid composition board, the percentage pass reduction ratio of carrying out first passage and second passage is 3.5: 1 the rolling aftertreatment of two passage room temperatures, is 1.6MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel aluminium 28 lead semisolid composition board, the percentage pass reduction ratio of carrying out first passage and second passage is 3: 1 the rolling aftertreatment of two passage room temperatures, is 1.8MPa in composition board interface shear strength difference transversely.
As seen, to the steel aluminium 28 lead semisolid composition board that constitutes by thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.5mm, the percentage pass reduction ratio of carrying out total draft and be 1.6%, first passage and second passage is 6: 1～3: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 1.9MPa.
Claims (1)
1. the even post-treating method of a steel aluminium 28 lead semisolid composition board, at room temperature, on finishing rolling mill, the steel aluminium 28 lead semisolid composition board that is made of thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.5mm is rolled aftertreatment, it is characterized in that, to steel aluminium 28 lead semisolid composition board, carry out total draft and be percentage pass reduction ratio 1.6%, first passage and second passage and be 6: 1～3: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138801A CN102010957B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138801A CN102010957B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010957A true CN102010957A (en) | 2011-04-13 |
| CN102010957B CN102010957B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106138801A Expired - Fee Related CN102010957B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
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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 CN2010106138801A patent/CN102010957B/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 |
|---|
| 《金属学报》 20020228 宋仁伯等 半固态钢铁材料轧制产品的力学特性 第153-156页 1 第38卷, 第2期 2 * |
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| CN102010957B (en) | 2012-07-04 |
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Granted publication date: 20120704 Termination date: 20121230 |