CN102010955B - Homogenizing postprocessing method for steel zinc 3-Graphite semi-solid composite panel - Google Patents
Homogenizing postprocessing method for steel zinc 3-Graphite semi-solid composite panel Download PDFInfo
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- CN102010955B CN102010955B CN2010106138784A CN201010613878A CN102010955B CN 102010955 B CN102010955 B CN 102010955B CN 2010106138784 A CN2010106138784 A CN 2010106138784A CN 201010613878 A CN201010613878 A CN 201010613878A CN 102010955 B CN102010955 B CN 102010955B
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Abstract
The invention discloses a homogenizing processing method for a steel zinc 3-Graphite semi-solid composite panel, belonging to the field of research on the interface shearing strength room-temperature rolling postprocessing of the steel zinc 3-Graphite semi-solid composite panel. In the processing method, twice rolling are carried out on the steel zinc 3-Graphite semi-solid composite panel which is constituted by a 08AI steel plate with the thickness of 1.2 mm and a zinc 3-Graphite coating with the thickness of 1.5 mm by a fine rolling mill at room temperature, wherein the overall reduction ratio is 1.0%, and the ratio of the reduction ratio of the primary rolling to the reduction ratio of the secondary rolling is (1:1.5) to (3:1). By the method, the shearing strength difference of the transverse interface of the composite panel can be reduced to less than 1.7 MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel zinc 3 graphite semi-solid composition boards.
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 zinc 3 graphite semi-solid composition boards are to adopt semisolid-state clad plate that solid-state steel plate and zinc 3 graphite semi-solid slurries are composited, that be made up of thick 08Al steel plate of 1.2mm and the thick zinc 3 graphite coating of 1.5mm; When adopting the CN101117696A patented process to be rolled aftertreatment; At ideal draft comparatively is under 1.0% condition; Because zinc 3 graphite 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 zinc 3 graphite semi-solid composition boards, 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 3 graphite semi-solid composition board 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 zinc rolling post-treating methods of 3 graphite semi-solid composition board room temperatures " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel zinc 3 graphite semi-solid composition board 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 zinc 3 graphite semi-solid composition boards; 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: 1.5～3: 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 3 graphite semi-solid composition boards are carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 1.7MPa, reduce by 39% 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 zinc 3 graphite semi-solid composition boards; At room temperature; On finishing rolling mill; To the steel zinc 3 graphite semi-solid composition boards that constitute by thick 08Al steel plate of 1.2mm and the thick zinc 3 graphite coating of 1.5mm; Carry out two passages, total draft and be 1.0% rolling aftertreatment, the big-difference of the zinc 3 graphite 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 zinc 3 graphite 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 zinc 3 graphite semi-solid composition board interface shear strengths.
Embodiment one, to steel zinc 3 graphite semi-solid composition boards, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 1.5 the rolling aftertreatment of two passage room temperatures, is 1.6MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel zinc 3 graphite semi-solid composition boards, 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 three, to steel zinc 3 graphite semi-solid composition boards, the percentage pass reduction ratio of carrying out first passage and second passage is 3: 2 the rolling aftertreatment of two passage room temperatures, is 1.5MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel zinc 3 graphite semi-solid composition boards, 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 1.6MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel zinc 3 graphite semi-solid composition boards, 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 1.7MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel zinc 3 graphite semi-solid composition boards that constitute by thick 08Al steel plate of 1.2mm and the thick zinc 3 graphite coating of 1.5mm; The percentage pass reduction ratio of carrying out total draft and be 1.0%, first passage and second passage is 1: 1.5～3: 1 the rolling aftertreatment of two passage room temperatures, and composition board interface shear strength difference transversely is reduced in the 1.7MPa.
Claims (1)
1. the even post-treating method of steel zinc 3 graphite semi-solid composition boards; At room temperature; On finishing rolling mill, the steel zinc 3 graphite semi-solid composition boards that are made up of thick 08Al steel plate of 1.2mm and the thick zinc 3 graphite coating of 1.5mm are rolled aftertreatment, it is characterized in that; To steel zinc 3 graphite semi-solid composition boards, carry out total draft and be percentage pass reduction ratio 1.0%, first passage and second passage and be 1: 1.5～3: 1 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138784A CN102010955B (en) | 2010-12-30 | 2010-12-30 | Homogenizing postprocessing method for steel zinc 3-Graphite semi-solid composite panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106138784A CN102010955B (en) | 2010-12-30 | 2010-12-30 | Homogenizing postprocessing method for steel zinc 3-Graphite semi-solid composite panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010955A CN102010955A (en) | 2011-04-13 |
| CN102010955B true CN102010955B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106138784A Expired - Fee Related CN102010955B (en) | 2010-12-30 | 2010-12-30 | Homogenizing postprocessing method for steel zinc 3-Graphite semi-solid composite panel |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392115C (en) * | 2006-09-12 | 2008-06-04 | 北京交通大学 | Method for post-processing composite board of steel aluminum 20 of tin 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 |
| CN100479937C (en) * | 2007-09-05 | 2009-04-22 | 北京交通大学 | Steel aluminum-4 plumbago composite board casting, rolling and compositing method |
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Granted publication date: 20120627 Termination date: 20121230 |