CN102031353B - Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate - Google Patents
Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate Download PDFInfo
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- CN102031353B CN102031353B CN201010614944XA CN201010614944A CN102031353B CN 102031353 B CN102031353 B CN 102031353B CN 201010614944X A CN201010614944X A CN 201010614944XA CN 201010614944 A CN201010614944 A CN 201010614944A CN 102031353 B CN102031353 B CN 102031353B
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Abstract
The invention discloses a uniform post-processing method of a steel zinc 3.5 boron nitride solid-liquid composite plate, belonging to the field of interface shear strength room temperature rolling post-processing researches of the steel zinc 3.5 boron nitride solid-liquid composite plates. In the invention, a steel zinc 3.5 boron nitride solid-liquid composite board consisting of a 08AL steel plate of 1.2mm in thickness and a zinc 3.5 boron nitride coating of 3.0mm in thickness is subjected to two-pass rolling treatments on a precise rolling mill at room temperature, wherein the total down rate is 2.2 percent, and the down rate of the first-pass rolling treatment to the first-pass rolling treatment is (1:2.5)-(3:2), thus the transverse shear strength difference value of the composite plate can be reduced to below 1.8MPa.
Description
Technical field
The present invention relates to a kind of rolling post-treating method of interface shear strength room temperature of steel zinc 3.5 SP 1 solid-liquid-phase composite plates.
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 3.5 SP 1 solid-liquid-phase composite plates are the solid-liquid-phase composite plates that are made up of thick 08Al steel plate of 1.2mm and the thick zinc 3.5 SP 1 coating of 3.0mm; When adopting the CN1710114A patented process to be rolled aftertreatment; At ideal draft comparatively is under 2.2% condition; Because zinc 3.5 SP 1 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 3.5 SP 1 solid-liquid-phase composite plates, 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 3.5 SP 1 solid-liquid-phase composite plate 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 3.5 SP 1 solid-liquid-phase composite plate room temperatures " transverse interface shearing resistance difference is big "; A kind of post-treating method that can improve steel zinc 3.5 SP 1 solid-liquid-phase composite plate 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 3.5 SP 1 solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, carry out total draft and be percentage pass reduction ratio 2.2%, first passage and second passage and be 1: 2.5～3: 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 zinc 3.5 SP 1 solid-liquid-phase composite plates are carried out the rolling processing of room temperature; Can composition board transverse interface shearing resistance difference be reduced in the 1.8MPa, reduce by 36% at least than adopting the CN1710114A 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 3.5 SP 1 solid-liquid-phase composite plates; At room temperature; On finishing rolling mill; To the steel zinc 3.5 SP 1 solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick zinc 3.5 SP 1 coating of 3.0mm; Carry out two passages, total draft and be 2.2% rolling aftertreatment, the big-difference of the zinc 3.5 SP 1 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 3.5 SP 1 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 3.5 SP 1 solid-liquid-phase composite plate interface shear strengths.
Embodiment one, to steel zinc 3.5 SP 1 solid-liquid-phase composite plates, 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 1.8MPa in composition board interface shear strength difference transversely.
Embodiment two, to steel zinc 3.5 SP 1 solid-liquid-phase composite plates, 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 1.7MPa in composition board interface shear strength difference transversely.
Embodiment three, to steel zinc 3.5 SP 1 solid-liquid-phase composite plates, 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 1.6MPa in composition board interface shear strength difference transversely.
Embodiment four, to steel zinc 3.5 SP 1 solid-liquid-phase composite plates, the percentage pass reduction ratio of carrying out first passage and second passage is 4: 3 the rolling aftertreatment of two passage room temperatures, is 1.5MPa in composition board interface shear strength difference transversely.
Embodiment five, to steel zinc 3.5 SP 1 solid-liquid-phase composite plates, 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 1.6MPa in composition board interface shear strength difference transversely.
It is thus clear that; To the steel zinc 3.5 SP 1 solid-liquid-phase composite plates that constitute by thick 08Al steel plate of 1.2mm and the thick zinc 3.5 SP 1 coating of 3.0mm; The percentage pass reduction ratio of carrying out total draft and be 2.2%, first passage and second passage is 1: 2.5～3: 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 steel zinc 3.5 SP 1 solid-liquid-phase composite plates; At room temperature; On finishing rolling mill, the steel zinc 3.5 SP 1 solid-liquid-phase composite plates that are made up of thick 08Al steel plate of 1.2mm and the thick zinc 3.5 SP 1 coating of 3.0mm are rolled aftertreatment, it is characterized in that; To steel zinc 3.5 SP 1 solid-liquid-phase composite plates, carry out total draft and be percentage pass reduction ratio 2.2%, first passage and second passage and be 1: 2.5～3: 2 the rolling processing of two passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010614944XA CN102031353B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010614944XA CN102031353B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
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| Publication Number | Publication Date |
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| CN102031353A CN102031353A (en) | 2011-04-27 |
| CN102031353B true CN102031353B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010614944XA Expired - Fee Related CN102031353B (en) | 2010-12-30 | 2010-12-30 | Uniform post-processing method of steel zinc 3.5 boron nitride solid-liquid composite plate |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710114A (en) * | 2005-07-07 | 2005-12-21 | 北京交通大学 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
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2010
- 2010-12-30 CN CN201010614944XA patent/CN102031353B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710114A (en) * | 2005-07-07 | 2005-12-21 | 北京交通大学 | Post-processing method for steel-back aluminium-base solid-liquid-phase composite plate |
Non-Patent Citations (1)
| Title |
|---|
| 宋仁伯等.半固态钢铁材料轧制产品的力学特性.《金属学报》.2002,第38卷(第2期),第153-156页. * |
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| CN102031353A (en) | 2011-04-27 |
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Granted publication date: 20120711 Termination date: 20121230 |