CN102021289A - Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate - Google Patents
Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate Download PDFInfo
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- CN102021289A CN102021289A CN 201010614011 CN201010614011A CN102021289A CN 102021289 A CN102021289 A CN 102021289A CN 201010614011 CN201010614011 CN 201010614011 CN 201010614011 A CN201010614011 A CN 201010614011A CN 102021289 A CN102021289 A CN 102021289A
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Abstract
The invention discloses a method for evenly post-treating a steel-titanium bronze 4.3-5 graphite semisolid compound plate, belonging to the research field of rolling the steel-titanium bronze 4.3-5 graphite semisolid compound plate at certain interface shear strength and room temperature. The two-pass rolling process is performed on the steel-titanium bronze 4.3-5 graphite semisolid compound plate formed by a 08Al steel plate with 1.2mm thickness and a titanium bronze 4.3-5 graphite coating with 2.8mm thickness in a precise rolling mill at room temperature, wherein the total reduction rate is 1.4% and the proportion of the reduction rates of a first pass to a second pass is (1:4)-(1:2), so as to reduce the difference of the transverse interface shear strengths of the compound plate to be below 1.8 PMa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel titanium bronze 4.3-5 graphite semi-solid composition board.
Background technology
Publication number: CN1916193A, denomination of invention: on " a kind of method that reduces interface residual stress of steel, copper, graphite composite plate ", set forth the rolling post-treating method of room temperature of steel, copper, graphite semisolid-state clad plate, promptly, at room temperature, on finishing rolling mill, to the steel, copper, graphite semisolid-state clad plate, be rolled aftertreatment, utilize the difference of copper graphite coating that rolling processing produces and steel plate deformed amount to remedy the difference of copper graphite coating and steel plate shrinkage in the composite solidification process of cooling, and then reduce the composition board interface residual 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 copper graphite 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 2.9～3.3MPa.
Steel titanium bronze 4.3-5 graphite semi-solid composition board adopts solid-state steel plate and titanium bronze 4.3-5 graphite semi-solid slurry to be composited, the semisolid-state clad plate that constitutes by thick 08Al steel plate of 1.2mm and the thick titanium bronze 4.3-5 graphite coating of 2.8mm, the titaniferous amount of titanium bronze 4.3-5 graphite coating is 4.2～4.4wt%, graphitiferous particulate quantity is 5wt%, be under 1.4% the rolling post-treatment condition at the disclosed draft of patent CN1916193A, because titanium bronze 4.3-5 graphite coating is at composition board deflection skewness transversely, cause the difference between the composition board interface shear strength transversely can be up to 2.9MPa.
For steel titanium bronze 4.3-5 graphite semi-solid 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 titanium bronze 4.3-5 graphite semi-solid 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 titanium bronze 4.3-5 graphite semi-solid composition board room temperature " transverse interface shearing resistance difference is big ", a kind of post-treating method that can improve steel titanium bronze 4.3-5 graphite semi-solid 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 titanium bronze 4.3-5 graphite semi-solid composition board, at room temperature, on finishing rolling mill, carry out total draft and be percentage pass reduction ratio 1.4%, 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, 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 titanium bronze 4.3-5 graphite semi-solid composition board is carried out the rolling processing of room temperature, composition board transverse interface shearing resistance difference can be reduced in the 1.8MPa, reduce by 38% at least than adopting the CN1916193A patented method to carry out the 2.9MPa that the rolling processing of room temperature obtains.
Embodiment
A kind of even post-treating method of steel titanium bronze 4.3-5 graphite semi-solid composition board, at room temperature, on finishing rolling mill, to the steel titanium bronze 4.3-5 graphite semi-solid composition board that constitutes by thick 08Al steel plate of 1.2mm and the thick titanium bronze 4.3-5 graphite coating of 2.8mm, carry out two passages, total draft is 1.4% rolling aftertreatment, the big-difference of the titanium bronze 4.3-5 graphite 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 titanium bronze 4.3-5 graphite coating transverse deformation amount 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 titanium bronze 4.3-5 graphite semi-solid composition board interface shear strength.
Embodiment one, to steel titanium bronze 4.3-5 graphite semi-solid composition board, 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 1.7MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel titanium bronze 4.3-5 graphite semi-solid composition board, 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 1.6MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel titanium bronze 4.3-5 graphite semi-solid composition board, 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 1.6MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel titanium bronze 4.3-5 graphite semi-solid composition board, 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 1.7MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel titanium bronze 4.3-5 graphite semi-solid composition board, 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 1.8MPa in composition board interface shear strength difference transversely.
As seen, to the steel titanium bronze 4.3-5 graphite semi-solid composition board that constitutes by thick 08Al steel plate of 1.2mm and the thick titanium bronze 4.3-5 graphite coating of 2.8mm, the percentage pass reduction ratio of carrying out total draft and be 1.4%, 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 1.8MPa.
Claims (1)
1. the even post-treating method of a steel titanium bronze 4.3-5 graphite semi-solid composition board, at room temperature, on finishing rolling mill, the steel titanium bronze 4.3-5 graphite semi-solid composition board that is made of thick 08Al steel plate of 1.2mm and the thick titanium bronze 4.3-5 graphite coating of 2.8mm is rolled aftertreatment, it is characterized in that, to steel titanium bronze 4.3-5 graphite semi-solid composition board, carry out total draft and be percentage pass reduction ratio 1.4%, first passage and second passage and be 1: 4～1: 2 the rolling processing of two passages.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106140110A CN102021289B (en) | 2010-12-30 | 2010-12-30 | Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106140110A CN102021289B (en) | 2010-12-30 | 2010-12-30 | Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate |
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| CN102021289A true CN102021289A (en) | 2011-04-20 |
| CN102021289B CN102021289B (en) | 2012-05-23 |
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| CN2010106140110A Expired - Fee Related CN102021289B (en) | 2010-12-30 | 2010-12-30 | Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1915546A (en) * | 2006-09-01 | 2007-02-21 | 北京交通大学 | Composite method for casting and rolling composite plate of steel, cupper, and graphite |
| 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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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1915546A (en) * | 2006-09-01 | 2007-02-21 | 北京交通大学 | Composite method for casting and rolling composite plate of steel, cupper, and graphite |
| 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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| CN102021289B (en) | 2012-05-23 |
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Granted publication date: 20120523 Termination date: 20121230 |