CN1710114A - Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate - Google Patents
Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate Download PDFInfo
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- CN1710114A CN1710114A CN 200510012100 CN200510012100A CN1710114A CN 1710114 A CN1710114 A CN 1710114A CN 200510012100 CN200510012100 CN 200510012100 CN 200510012100 A CN200510012100 A CN 200510012100A CN 1710114 A CN1710114 A CN 1710114A
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Abstract
The invention discloses an after treatment of aluminum based steel-back solid-liquid phase complex board. Roll the complex board on the precise rolling mill at a draft of 1.5 to 3.5 percents. The contraction difference between the aluminum cover and the steel back in complex cooling and coagulating period, is compensated with the deformation difference between the aluminum covering layer and the steel back, further reducing the boundary extra stress so to improve the boundary shearing strength of the complex board in a simple and convenience way, resolving the problem that original after treatment of the aluminum based iron back solid-liquid phase complex board is of excessive power consumption and low boundary shearing strength enhancement.
Description
Technical field
The present invention relates to a kind of interface shear strength post-treating method of steel-back aluminium-base solid-liquid-phase composite plate.
Background technology
Steel-back aluminium-base solid-liquid-phase composite plate is a solid-state steel plate and aluminum-based alloy liquid is composited, the composition board that is made of steel backing and aluminium base coating.Because the coefficient of expansion of aluminium base coating is obviously greater than the coefficient of expansion of steel backing, therefore, solidifying in the process of cooling after the steel back aluminium solid-liquid is mutually compound, the shrinkage of aluminium base coating is much larger than the shrinkage of steel backing, but because the intensity of aluminium base coating is much smaller than the intensity of steel backing, like this, at the compound interface place, steel backing has hindered the normal contraction of aluminium base coating consumingly, therefore produces sizable additional stress at the compound interface place.Behind the combined shaping, this is stress-retained at the composition board interface, and it is superimposed with the stress that the subsequent technique process produces, aggravation is to the destruction of compound interface, so behind combined shaping, need composition board is carried out aftertreatment, fully reduce the interface additional stress, the composition board interface shear strength is improved.
Main at present employing diffusion annealing method is carried out aftertreatment to composition board, and the treatment time, annealing temperature was up to more than 300 ℃ usually more than 10 hours.In long high-temperature annealing process, the atom that is in the additional stress district can obtain enough energy, moves to the low energy equilibrium theory of tide by the high energy equilibrium theory of tide, thereby has reduced the interface additional stress, has improved interface shear strength.But for steel-back aluminium-base solid-liquid-phase composite plate, long high temperature diffusion annealing, not only big, the cost raising of energy consumption, and the compound interface place can form the above crisp hard iron aluminum compound thick-layer of 80 μ m, cause the compound interface embrittlement, when reducing the interface additional stress, the interface embrittlement also can make the raising of compound interface shearing resistance be restricted like this, and the compound interface shearing resistance is only brought up to 71MPa by 70MPa.
Summary of the invention
Technical problem to be solved by this invention is, overcome the deficiency of steel-back aluminium-base solid-liquid-phase composite plate diffusion annealing post-treating method " energy consumption big, interface shear strength increase rate little ", provide a kind of and can remedy shrinkage difference that aluminium base coating and steel backing solidifying after solid-liquid is mutually compound produce in the process of cooling and then the post-treating method that reduces the compound interface additional stress, further improve the interface shear strength of steel-back aluminium-base solid-liquid-phase composite plate.
The technical solution adopted for the present invention to solve the technical problems is: at room temperature, on finishing rolling mill, to steel-back aluminium-base solid-liquid-phase composite plate, carrying out draft is the rolling of 1.5-3.5%.
Draft is that the difference of composition board ingoing ga(u)ge and outgoing gauge is again divided by ingoing ga(u)ge.
Because the intensity of aluminium base coating is much smaller than the intensity of steel backing, when rolling processing, the deflection of aluminium base coating will be much larger than the deflection of steel backing, like this, utilize the difference of aluminium base coating that rolling processing causes 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, thereby further improve the composition board interface shear strength.
The draft of rolling aftertreatment is most important, if draft is less than 1.5%, the aluminium base coating that then rolling processing produces and the difference of steel backing deflection can not remedy the difference of aluminium base coating and steel backing shrinkage in the composite solidification process of cooling fully, do not reach the purpose that fully reduces composition board interface additional stress; If draft is greater than 3.5%, the aluminium base coating that then rolling processing produces and the difference of steel backing deflection, though remedied the difference of aluminium base coating and steel backing shrinkage in the composite solidification process of cooling, but caused the difference of new aluminium base coating and steel backing deflection, form new additional stress again at the compound interface place, caused the reduction of compound interface shearing resistance.Therefore, the rolling aftertreatment draft scope that can remedy aluminium base coating and steel backing shrinkage difference in the composite solidification process of cooling, effectively improves interface shear strength is 1.5-3.5%.
The present invention compares the beneficial effect that is had with prior art: utilize the present invention, steel-back aluminium-base solid-liquid-phase composite plate is rolled aftertreatment, the compound interface shearing resistance is brought up to 75-82MPa by 70MPa, and effect energy-conservation and the raising interface shear strength is very good.The inventive method is simple, convenient.
Embodiment
At room temperature, on finishing rolling mill, to steel-back aluminium-base solid-liquid-phase composite plate, carrying out draft is that 1.5-3.5% is rolling.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, raising composition board interface shear strength.
Concrete application one
To the solid-liquid-phase composite plate that constitutes by the thick 08Al steel plate of 1.2mm, the thick commercial-purity aluminium coating of 1.0mm, at room temperature, on finishing rolling mill, carry out draft and be 3.5% rolling aftertreatment, composition board compound interface shearing resistance is brought up to 82MPa after rolling by the 70MPa before rolling.
Concrete application two
To the solid-liquid-phase composite plate that constitutes by the thick 08Al steel plate of 1.2mm, the thick Al-28Pb coating of 2.0mm, at room temperature, on finishing rolling mill, carry out draft and be 3% rolling aftertreatment, composition board compound interface shearing resistance is brought up to 76MPa after rolling by the 70MPa before rolling.
Concrete application three
To the solid-liquid-phase composite plate that constitutes by the thick 08Al steel plate of 1.2mm, the thick Al-20Sn coating of 2.0mm, at room temperature, on finishing rolling mill, carry out draft and be 2% rolling aftertreatment, composition board compound interface shearing resistance is brought up to 76MPa after rolling by the 70MPa before rolling.
Concrete application four
To the solid-liquid-phase composite plate that constitutes by the thick 08Al steel plate of 1.2mm, the thick Al-7Gr coating of 2.0mm, at room temperature, on finishing rolling mill, carry out draft and be 1.5% rolling aftertreatment, composition board compound interface shearing resistance is brought up to 75MPa after rolling by the 70MPa before rolling.
Claims (1)
1. the post-treating method of a steel-back aluminium-base solid-liquid-phase composite plate, it is characterized in that, at room temperature, on finishing rolling mill, to steel-back aluminium-base solid-liquid-phase composite plate, carrying out draft is the rolling of 1.5-3.5%, utilizes 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, improve the composition board interface shear strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100121007A CN1320133C (en) | 2005-07-07 | 2005-07-07 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100121007A CN1320133C (en) | 2005-07-07 | 2005-07-07 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
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| Publication Number | Publication Date |
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| CN1710114A true CN1710114A (en) | 2005-12-21 |
| CN1320133C CN1320133C (en) | 2007-06-06 |
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| CNB2005100121007A Expired - Fee Related CN1320133C (en) | 2005-07-07 | 2005-07-07 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
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Cited By (17)
| 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 |
| CN102010950A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform aftertreatment method for steel zinc solid-liquid phase composite board |
| CN102010958A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenizing post-treatment method of steel aluminum-20-tin semi-solid composite board |
| CN102010947A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization postprocessing method of steel zinc semisolid composite board |
| CN102010944A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization post processing method for steel aluminum 9 boron nitride solid-liquid phase composite board |
| CN102010951A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method for steel-aluminum solid-liquid composite plate |
| CN102010952A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board |
| CN102010954A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform aftertreatment method of steel and zinc 3 graphite solid-liquid phase composite plate |
| CN102010957A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
| CN102010960A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenizing post-treatment method of steel aluminum-7-graphite solid-liquid composite board |
| CN102010956A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminum 20 stannum solid-liquid phase composite board |
| CN102010948A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
| CN102021286A (en) * | 2010-12-30 | 2011-04-20 | 北京交通大学 | Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board |
| CN102031352A (en) * | 2010-12-30 | 2011-04-27 | 北京交通大学 | Uniform post-processing method of steel titanium bronze 3.5-4 graphite semi-solid composite plate |
| CN102031353A (en) * | 2010-12-30 | 2011-04-27 | 北京交通大学 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
| CN102162021A (en) * | 2010-12-30 | 2011-08-24 | 北京交通大学 | Uniform post-treatment method for steel aluminum 5 graphite solid-liquid phase composite board |
| CN102162022A (en) * | 2010-12-30 | 2011-08-24 | 北京交通大学 | Uniform post-treatment method for steel and aluminum 4 graphite solid-liquid phase composite plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044576C (en) * | 1996-01-19 | 1999-08-11 | 东北大学 | Layer compound material off-set deformation compound-rolling technology |
| CN2688490Y (en) * | 2004-04-23 | 2005-03-30 | 胡志明 | Composite metal boards |
-
2005
- 2005-07-07 CN CNB2005100121007A patent/CN1320133C/en not_active Expired - Fee Related
Cited By (27)
| 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 |
| CN102010950A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform aftertreatment method for steel zinc solid-liquid phase composite board |
| CN102010958A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenizing post-treatment method of steel aluminum-20-tin semi-solid composite board |
| CN102010947A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization postprocessing method of steel zinc semisolid composite board |
| CN102010944A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization post processing method for steel aluminum 9 boron nitride solid-liquid phase composite board |
| CN102010951A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method for steel-aluminum solid-liquid composite plate |
| CN102010952A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board |
| CN102010954A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform aftertreatment method of steel and zinc 3 graphite solid-liquid phase composite plate |
| CN102010957A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
| CN102010960A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenizing post-treatment method of steel aluminum-7-graphite solid-liquid composite board |
| CN102010956A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Uniform post-processing method of steel-aluminum 20 stannum solid-liquid phase composite board |
| CN102010948A (en) * | 2010-12-30 | 2011-04-13 | 北京交通大学 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
| CN102021286A (en) * | 2010-12-30 | 2011-04-20 | 北京交通大学 | Uniform aftertreatment method of steel HSi80 brass solid-liquid phase composite board |
| CN102031352A (en) * | 2010-12-30 | 2011-04-27 | 北京交通大学 | Uniform post-processing method of steel titanium bronze 3.5-4 graphite semi-solid composite plate |
| CN102031353A (en) * | 2010-12-30 | 2011-04-27 | 北京交通大学 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
| CN102162021A (en) * | 2010-12-30 | 2011-08-24 | 北京交通大学 | Uniform post-treatment method for steel aluminum 5 graphite solid-liquid phase composite board |
| CN102162022A (en) * | 2010-12-30 | 2011-08-24 | 北京交通大学 | Uniform post-treatment method for steel and aluminum 4 graphite solid-liquid phase composite plate |
| CN102010951B (en) * | 2010-12-30 | 2011-12-28 | 北京交通大学 | Uniform post-processing method for steel-aluminum solid-liquid composite plate |
| CN102010960B (en) * | 2010-12-30 | 2012-05-30 | 北京交通大学 | Homogenizing post-treatment method of steel aluminum-7-graphite solid-liquid composite board |
| CN102010952B (en) * | 2010-12-30 | 2012-05-30 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead solid liquid phase composite board |
| CN102010954B (en) * | 2010-12-30 | 2012-06-20 | 北京交通大学 | Uniform aftertreatment method of steel and zinc 3 graphite solid-liquid phase composite plate |
| CN102010948B (en) * | 2010-12-30 | 2012-06-20 | 北京交通大学 | Homogenization postprocessing method for steel-aluminium semi-solid clad plate |
| CN102010957B (en) * | 2010-12-30 | 2012-07-04 | 北京交通大学 | Uniform post-processing method of steel-aluminium 28 lead semisolid composite board |
| CN102010944B (en) * | 2010-12-30 | 2012-07-04 | 北京交通大学 | Homogenization post processing method for steel aluminum 9 boron nitride solid-liquid phase composite board |
| CN102162022B (en) * | 2010-12-30 | 2012-07-11 | 北京交通大学 | Uniform post-treatment method for steel and aluminum 4 graphite solid-liquid phase composite plate |
| CN102031353B (en) * | 2010-12-30 | 2012-07-11 | 北京交通大学 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
| CN102162021B (en) * | 2010-12-30 | 2012-08-08 | 北京交通大学 | Uniform post-treatment method for steel aluminum 5 graphite solid-liquid phase composite board |
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