CN102010952B - Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board - Google Patents
Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board Download PDFInfo
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- CN102010952B CN102010952B CN2010106138197A CN201010613819A CN102010952B CN 102010952 B CN102010952 B CN 102010952B CN 2010106138197 A CN2010106138197 A CN 2010106138197A CN 201010613819 A CN201010613819 A CN 201010613819A CN 102010952 B CN102010952 B CN 102010952B
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Abstract
The present invention discloses a uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board, belonging to the researching field of interface shearing strength room temperature rolling post-process of steel-aluminium 28 lead solid liquid phase composite board; the method of the present invention carries through twice pass rolling processes with a total down rate and 3% and a down rate proportion of a first pass and a second pass at 7:1-3:1 for the steel-aluminium 28 lead solid liquid phase composite board composed of a 08A1 steel plate 1.2mm in thickness and an aluminium 28 lead covering layer with 2.0mm 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 2.6MPa.
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 plumbous solid-liquid-phase composite plates.
Background technology
Publication number: CN1710114A, denomination of invention: on " a kind of post-treating method of steel-back aluminium-base solid-liquid-phase composite plate ", set forth the rolling post-treating method 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 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 3～5MPa.
Steel aluminium 28 plumbous 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 28 plumbous coating of 2.0mm; Be under 3% the rolling post-treatment condition at the disclosed draft of patent CN1710114A; 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 4.2MPa.
For steel aluminium 28 plumbous solid-liquid-phase composite 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 28 plumbous solid-liquid-phase composite 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 28 plumbous solid-liquid-phase composite plate room temperatures " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel aluminium 28 plumbous solid-liquid-phase composite 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 28 plumbous solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 3%, first passage and second passage and be 7: 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, 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 28 plumbous solid-liquid-phase composite plates are carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 2.6MPa, reduce by 38% at least than adopting the CN1710114A patented process to carry out the 4.2MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel aluminium 28 plumbous solid-liquid-phase composite plates; At room temperature; On finishing rolling mill,, carry out two passages, total draft and be 3% rolling aftertreatment to the steel aluminium 28 plumbous solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.0mm; 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 have further reduced composition board transverse interface shearing resistance difference, have improved the distributing homogeneity of steel aluminium 28 plumbous solid-liquid-phase composite plate interface shear strengths.
Embodiment one, to steel aluminium 28 plumbous solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 7: 1 the rolling aftertreatment of two passage room temperatures, is 2.6MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel aluminium 28 plumbous solid-liquid-phase composite plates, 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 2.0MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel aluminium 28 plumbous solid-liquid-phase composite plates, 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 1.6MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel aluminium 28 plumbous solid-liquid-phase composite plates, 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 2.1MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel aluminium 28 plumbous solid-liquid-phase composite plates, 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 2.5MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel aluminium 28 plumbous solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.0mm; The percentage pass reduction ratio of carrying out total draft and be 3%, first passage and second passage is 7: 1～3: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 2.6MPa.
Claims (1)
1. the even post-treating method of steel aluminium 28 plumbous solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, the steel aluminium 28 plumbous solid-liquid-phase composite plates that are made up of thick 08Al steel plate of 1.2mm and the thick aluminium 28 plumbous coating of 2.0mm are rolled aftertreatment, it is characterized in that; To steel aluminium 28 plumbous solid-liquid-phase composite plates, carry out total draft and be percentage pass reduction ratio 3%, first passage and second passage and be 7: 1～3: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138197A CN102010952B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138197A CN102010952B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010952A CN102010952A (en) | 2011-04-13 |
| CN102010952B true CN102010952B (en) | 2012-05-30 |
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| CN2010106138197A Expired - Fee Related CN102010952B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase 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 |
| CN101117695A (en) * | 2007-09-05 | 2008-02-06 | 北京交通大学 | Post-treating method for steel-aluminium 28 lead mushy clad plate |
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2010
- 2010-12-30 CN CN2010106138197A patent/CN102010952B/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 |
| CN101117695A (en) * | 2007-09-05 | 2008-02-06 | 北京交通大学 | Post-treating method for steel-aluminium 28 lead mushy 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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