CN102010950B - Uniform aftertreatment method for steel zinc solid-liquid phase composite board - Google Patents
Uniform aftertreatment method for steel zinc solid-liquid phase composite board Download PDFInfo
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- CN102010950B CN102010950B CN2010106137404A CN201010613740A CN102010950B CN 102010950 B CN102010950 B CN 102010950B CN 2010106137404 A CN2010106137404 A CN 2010106137404A CN 201010613740 A CN201010613740 A CN 201010613740A CN 102010950 B CN102010950 B CN 102010950B
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Abstract
The invention discloses a uniform aftertreatment method for a steel zinc solid-liquid phase composite board, belonging to the yield of research on room temperature rolling aftertreatment of the interface shear strength of the steel zinc solid-liquid phase composite board. In the invention, the steel zinc solid-liquid phase composite board formed by a 08Al steel plate with the thickness of 1.2mm and a zinc covering layer with the thickness of 1.5mm is subjected to two-pass rolling treatment on a precious rolling mill at room temperature, wherein the total rolling reduction ratio is 5.8%, and the ratio of the rolling reduction in the first pass to the rolling reduction in the second pass is 1:3 to 3:1; and the transverse interface shear strength difference of the composite board is reduced to be less than 2.5MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel zinc solid-liquid-phase composite plate.
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 zinc solid-liquid-phase composite plate is the solid-liquid-phase composite plate that is made up of thick 08Al steel plate of 1.2mm and the thick zinc coating of 1.5mm; When adopting the CN1710114A patented process to be rolled aftertreatment; At ideal draft comparatively is under 5.8% condition; Because the zinc coating is 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 zinc solid-liquid-phase composite 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 zinc solid-liquid-phase composite 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 zinc solid-liquid-phase composite plate room temperature " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel zinc solid-liquid-phase composite 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 zinc solid-liquid-phase composite plate; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 5.8%, first passage and second passage and be 1: 3~3: 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 zinc solid-liquid-phase composite plate is carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 2.5MPa, reduce by 40% 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 zinc solid-liquid-phase composite plate; At room temperature; On finishing rolling mill,, carry out two passages, total draft and be 5.8% rolling aftertreatment to the steel zinc solid-liquid-phase composite plate that constitutes by thick 08Al steel plate of 1.2mm and the thick zinc coating of 1.5mm; The big-difference of the zinc coating transverse deformation amount that the rolling aftertreatment of single pass heavy reduction rate is produced; Decomposition and coordination are the little difference of the zinc coating 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 zinc solid-liquid-phase composite plate interface shear strength.
Embodiment one, to steel zinc solid-liquid-phase composite plate, 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 2.5MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel zinc solid-liquid-phase composite 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 1.9MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel zinc solid-liquid-phase composite 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 1.5MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel zinc solid-liquid-phase composite plate, the percentage pass reduction ratio of carrying out first passage and second passage is 2: 1 the rolling aftertreatment of two passage room temperatures, is 1.7MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel zinc solid-liquid-phase composite plate, 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 2.0MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel zinc solid-liquid-phase composite plate that constitutes by thick 08Al steel plate of 1.2mm and the thick zinc coating of 1.5mm; The percentage pass reduction ratio of carrying out total draft and be 5.8%, first passage and second passage is 1: 3~3: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 2.5MPa.
Claims (1)
1. the even post-treating method of a steel zinc solid-liquid-phase composite plate; At room temperature; On finishing rolling mill, the steel zinc solid-liquid-phase composite plate that is made up of thick 08Al steel plate of 1.2mm and the thick zinc coating of 1.5mm is rolled aftertreatment, it is characterized in that; To steel zinc solid-liquid-phase composite plate, carry out total draft and be percentage pass reduction ratio 5.8%, first passage and second passage and be 1: 3~3: 1 the rolling processing of two passages.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010106137404A CN102010950B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method for steel zinc solid-liquid phase composite board |
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CN2010106137404A CN102010950B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method for steel zinc solid-liquid phase composite board |
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CN102010950A CN102010950A (en) | 2011-04-13 |
CN102010950B true CN102010950B (en) | 2012-06-27 |
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CN2010106137404A Expired - Fee Related CN102010950B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method for steel zinc solid-liquid phase composite board |
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Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1320133C (en) * | 2005-07-07 | 2007-06-06 | 北京交通大学 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
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 |
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