CN102021286B - Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board - Google Patents
Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board Download PDFInfo
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- CN102021286B CN102021286B CN2010106139490A CN201010613949A CN102021286B CN 102021286 B CN102021286 B CN 102021286B CN 2010106139490 A CN2010106139490 A CN 2010106139490A CN 201010613949 A CN201010613949 A CN 201010613949A CN 102021286 B CN102021286 B CN 102021286B
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Abstract
The invention discloses a uniform aftertreatment method of a steel HSi80 brass solid-liquid phase composite board, belonging to the research field of the interface shear strength room-temperature rolling aftertreatment of a steel HSi80 brass solid-liquid phase composite board. The method is used for manufacturing the steel HSi80 brass solid-liquid phase composite board composed of a 08Al steel plate of which the thickness is 1.2 mm and an HSi80 brass coating of which the thickness is 1.5mm. At the room temperature, on a precise rolling mill, two-pass rolling treatment is carried out, wherein the total down rate is 3.1%, and the pass down rate ratio of a first pass to a second pass is 1:4-1:2; and the shear strength value of the horizontal interface of the composite board is lowered to be below 2.6 MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel HSi80 brass 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 HSi80 brass 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 HSi80 brass coating of 1.5mm; When adopting the CN1710114A patented process to be rolled aftertreatment; At ideal draft comparatively is under 3.1% condition; Because HSi80 brass coating is at composition board deflection skewness transversely, cause the difference between the composition board interface shear strength transversely can be up to 4.5MPa.
For steel HSi80 brass 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 HSi80 brass 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 HSi80 brass solid-liquid-phase composite plate room temperature " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel HSi80 brass 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 HSi80 brass solid-liquid-phase composite plate; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 3.1%, first passage and second passage and be 1: 4～1: 2 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 HSi80 brass 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 2.6MPa, reduce by 42% at least than adopting the CN1710114A patented process to carry out the 4.5MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel HSi80 brass solid-liquid-phase composite plate; At room temperature; On finishing rolling mill; To the steel HSi80 brass solid-liquid-phase composite plate that constitutes by thick 08Al steel plate of 1.2mm and the thick HSi80 brass coating of 1.5mm; Carry out two passages, total draft and be 3.1% rolling aftertreatment, the big-difference of the HSi80 brass coating transverse deformation amount that the rolling aftertreatment of single pass heavy reduction rate is produced, decomposing and coordinating is the little difference of the HSi80 brass coating transverse deformation amount that produces 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 HSi80 brass solid-liquid-phase composite plate interface shear strength.
Embodiment one, to steel HSi80 brass solid-liquid-phase composite plate, the percentage pass reduction ratio of carrying out first passage and second passage is 1: 4 the rolling aftertreatment of two passage room temperatures, is 2.6MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel HSi80 brass solid-liquid-phase composite 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 2.4MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel HSi80 brass 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 2.3MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel HSi80 brass solid-liquid-phase composite 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 2.3MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel HSi80 brass 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 2.5MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel HSi80 brass solid-liquid-phase composite plate that constitutes by thick 08Al steel plate of 1.2mm and the thick HSi80 brass coating of 1.5mm; The percentage pass reduction ratio of carrying out total draft and be 3.1%, first passage and second passage is 1: 4～1: 2 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 a steel HSi80 brass solid-liquid-phase composite plate; At room temperature; On finishing rolling mill, the steel HSi80 brass solid-liquid-phase composite plate that is made up of thick 08Al steel plate of 1.2mm and the thick HSi80 brass coating of 1.5mm is rolled aftertreatment, it is characterized in that; To steel HSi80 brass solid-liquid-phase composite plate, carry out total draft and be percentage pass reduction ratio 3.1%, first passage and second passage and be 1: 4～1: 2 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106139490A CN102021286B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106139490A CN102021286B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021286A CN102021286A (en) | 2011-04-20 |
| CN102021286B true CN102021286B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106139490A Expired - Fee Related CN102021286B (en) | 2010-12-30 | 2010-12-30 | Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board |
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| CN (1) | CN102021286B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 CN2010106139490A patent/CN102021286B/en not_active Expired - Fee Related
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| CN102021286A (en) | 2011-04-20 |
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Granted publication date: 20120704 Termination date: 20121230 |