CN104818369A - Metal sheet surface strengthening process - Google Patents
Metal sheet surface strengthening process Download PDFInfo
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- CN104818369A CN104818369A CN201510196082.6A CN201510196082A CN104818369A CN 104818369 A CN104818369 A CN 104818369A CN 201510196082 A CN201510196082 A CN 201510196082A CN 104818369 A CN104818369 A CN 104818369A
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- guide rail
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- metal sheet
- sheet metal
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Abstract
The invention relates to a metal sheet surface strengthening process which includes the specific steps: firstly, rolling and plastically deforming raw materials through a roller of a rolling mill, enabling the raw materials to enter a working area of second guide rails and a first bending roller under the action of first guide rails and performing first bending deformation; secondly, performing second bending reaction under the action of third guide rails and a second bending roller; thirdly, enabling the raw materials to pass a working area of fourth guide rails and a third bending roller; leading the raw materials into a straightening machine for straightening through fifth guide rails to finish working. The strength (or hardness) of the upper surface and the lower surface of a metal sheet can be effectively improved. By the aid of a subsequent heat treatment process, the structure property of the metal sheet is further improved by controlling phase control, so that the surface of the metal sheet is strengthened.
Description
Technical field
The present invention relates to a kind of sheet metal enhancement method, especially a kind of outside surface for reinforced metal sheet material, makes it have higher intensity, the technique of hardness and wear resistance.
Technical background
In recent years, along with the high speed development of international economy, increasing to the demand of metal.People, to while total metal content increase in demand, also increase the demand of some high-performance metals thereupon.Especially some cheapnesss, high performance metal receives the strong pursuit of industry especially.Also there is certain methods can improve metallic surface intensity at present, increase wear resistance, such as shot-peening, the techniques such as nitriding.But shot-peening is to the process of sheet workpiece, easily makes workpiece deformation, to the workpiece with greasy dirt, shot-peening thoroughly cannot remove greasy dirt; And cleaning surface is easily wetly, regenerating easily becomes rusty, and the shortcomings such as cleaning efficiency is low, and operator are many, and labour intensity is large limit its scope of application especially further.Easily there is lower hardness in nitridation process, hardness and infiltration layer uneven, the shortcomings such as be out of shape excessive, visual appearance is poor, vein nitride, complex manufacturing, and metal range of application is narrow, also make it apply and are limited by very large.Severe plastic deformation method is as ECAP, the techniques such as HPT also can repeatedly extrude metal or reverse, thus a large amount of strain of accumulation, and then can effectively by the grain refining of block materials inside, prepare bulk ultrafine-grained materials but usually the specimen size of preparation is little, be difficult to realize continuous prodution.On the whole, the raw complex structure of these technique, produce cost higher, suitability for industrialized production difficulty becomes greatly its critical defect.
Summary of the invention
The defect existed for above-mentioned prior art or deficiency, the object of the invention is to, a kind of sheet metal surface reinforcing process is provided, this technique according to the needs of actual production, can carry out industrialized production, the sheet metal needed for manufacture, and can conveniently adjust work area size, and working radius, and then control sheet metal flexural deformation situation, obtain the sheet metal of the different demand of performance.
For realizing above-mentioned task, the present invention takes following technical solution;
A kind of sheet metal surface reinforcing process, concrete steps are: first, after raw material is completed rolling viscous deformation by the roll of milling train, under the effect of the first guide rail, enter the workspace of the second guide rail and the first roller, carry out first time flexural deformation, then under the effect of the 3rd guide rail and the second roller, second time bending reaction is carried out, then through the workspace of the 4th guide rail and the 3rd roller, then introduce straightener by the 5th guide rail and align, finish the work.
After raw material blank is sent into milling train, the draught of adjustment milling train, makes rolled piece obtain the size needing to ask.
After rolled piece enters straightener, with each roller with the use of guide rail can leave its position so that reduce with rolled piece between frictional force.
The invention has the beneficial effects as follows:
The present invention effectively can improve the intensity (or hardness) of the upper and lower surface part of sheet metal.Simultaneously in conjunction with follow-up thermal treatment process, by controlling phase transformation, improve the structure property of sheet metal further.Thus reach the object of the surface strengthening improving sheet metal.
Accompanying drawing explanation
Fig. 1 is schema of the present invention;
Fig. 2 is schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described:
As Fig. 1, shown in 2, a kind of sheet metal surface reinforcing process, is formed by rolling-flexural deformation process combination, adopts milling train, a set of bending apparatus and an a set of equipment for straightening.
On the basis of rolling deformation, by the continuous print flexural deformation to sheet metal, make its upper and lower surface part that further viscous deformation occur, make its upper and lower surface portion crystal refinement more, stored energy (or dislocation desity) larger, by Hal1-Petch relational expression
known, the intensity (or hardness) of its upper and lower surface part also will be larger, thus reach the object of the surface strengthening improving sheet metal.Simultaneously in conjunction with follow-up thermal treatment process, by controlling phase transformation, improve the structure property of sheet metal further.
This sheet metal surface reinforcing process, concrete steps are:
First, after raw material completes rolling viscous deformation by the roll 1 of milling train, under the effect of the first guide rail 2, enter the workspace of the second guide rail 3 and the first roller 4, carry out first time flexural deformation, then under the effect of the 3rd guide rail 6 and the second roller 5, second time bending reaction is carried out, then through the workspace (flexural deformation of sheet metal of the 4th guide rail 7 and the 3rd roller 8, can according to strengthening requirement, increase and decrease diastrophic number of times), introduce straightener 10 by the 5th guide rail 9 again to align, finish the work.
Wherein: blank is sent into milling train 1, adjusting suitable draught, is the size that rolled piece obtains needing to ask.
By the effect of guide rail, rolled piece is introduced the workspace of the second guide rail 3 and the first roller 4, the first roller 4 is rotated around its axis, drive workpiece motion s, and under the effect of the second guide rail 3, be introduced into the workspace of the second roller 5 and the 3rd guide rail 6, make it occur again to bend.Along with the rotation of the second roller 5, rolled piece introduces the workspace of roller 8 and the 4th guide rail 7 via the 3rd guide rail 6, proceeds flexural deformation.Analogize thereupon.Last 5th guide rail 9 of final introducing.Through the rolled piece of the 5th guide rail 9, introduce final straightener.Under the effect of straightener, rolled piece is aligned, and in follow-up middle arrangement, with to be used.
Be positioned at the milling train of front equipment end, blank can obtain corresponding size by rolling, and its intensity is understood relatively and blank raises to some extent, but overall performance reaches unanimity.Because material self can affect and rolling equipment limitation of size, rolling deformation can not be excessive.
Be positioned at the guide rail of milling train back, accept the rolled piece that horizontal direction is sent here, and deliver to next guide rail.Be arranged on the guide rail above the first roller 4, accept the rolled piece that the first guide rail 2 passes over, and limit the movement locus of rolled piece, make it enter next guide rail smoothly.Its workspace can make the appropriate adjustments because of thickness of slab.With the second guide rail 3 with the use of the first roller 4, receive have first guide rail transmission 2 to come sheet material after, coordinate its upper rall to use together, make rolled piece through track.This roller can around its central rotation, to reduce the frictional force between less and rolled piece.Roller radius size can be determined according to practical situation, to control the flexural deformation degree of sheet metal.Be positioned at the 3rd guide rail 6 after first roller 4 and the second roller 5 in pairs with the use of, its function acts on identical with front second guide rail 3 and the first roller 4.Be and sheet metal is occured bending and deformation.The guide rail that pairing uses and roller quantity can practical situation adjust.Be positioned at straightener guide rail in front, receive the rolled piece that roller is sent here, it is sent into straightener smoothly.Be positioned at the straightener of end, blank is aligned, and send.
After rolled piece enters straightener, with each roller with the use of guide rail can leave its position so that reduce with rolled piece between frictional force.
Claims (3)
1. a sheet metal surface reinforcing process, it is characterized in that, concrete steps are: first, after raw material is completed rolling viscous deformation by the roll (1) of milling train, under the effect of the first guide rail (2), enter the workspace of the second guide rail (3) and the first roller (4), carry out first time flexural deformation, then under the effect of the 3rd guide rail (6) and the second roller (5), second time bending reaction is carried out, then through the workspace of the 4th guide rail (7) and the 3rd roller (8), introduce straightener (10) by the 5th guide rail (9) again to align, finish the work.
2. sheet metal surface reinforcing process according to claim 1, is characterized in that: after raw material blank is sent into milling train, and the draught of adjustment milling train, makes rolled piece obtain the size needing to ask.
3. sheet metal surface reinforcing process according to claim 1, is characterized in that: after rolled piece enters straightener (10), with each roller with the use of guide rail can leave its position so that reduce with rolled piece between frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196082.6A CN104818369A (en) | 2015-04-23 | 2015-04-23 | Metal sheet surface strengthening process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196082.6A CN104818369A (en) | 2015-04-23 | 2015-04-23 | Metal sheet surface strengthening process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104818369A true CN104818369A (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510196082.6A Pending CN104818369A (en) | 2015-04-23 | 2015-04-23 | Metal sheet surface strengthening process |
Country Status (1)
| Country | Link |
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| CN (1) | CN104818369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508616A (en) * | 2019-08-22 | 2019-11-29 | 燕山大学 | The method for realizing that metal material surface gradient is strengthened is rolled by ripple |
Citations (8)
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| JP2005002365A (en) * | 2003-06-09 | 2005-01-06 | Chuo Spring Co Ltd | High strength stabilizer |
| CN1672866A (en) * | 2005-04-14 | 2005-09-28 | 重庆大学 | Machining process capable of improving punching performance of magnesium alloy plate and belt |
| JP2007291466A (en) * | 2006-04-26 | 2007-11-08 | Nsk Ltd | Surface-treating method of metal, rolling-sliding member and rolling device |
| CN101688270A (en) * | 2007-06-28 | 2010-03-31 | 住友电气工业株式会社 | Magnesium alloy plate |
| CN102127724A (en) * | 2010-11-11 | 2011-07-20 | 中南大学 | Method for preparing magnesium alloy plate strip with grain size in symmetric gradient distribution along plate thickness direction |
| CN102154597A (en) * | 2011-02-22 | 2011-08-17 | 中南大学 | Processing method for refining crystal grains and improving texture of double surface layers of magnesium alloy plate strip |
| CN102744902A (en) * | 2012-05-07 | 2012-10-24 | 罗凯 | Soft and hard roller continuous cyclic bending method and device |
| CN103031426A (en) * | 2011-09-29 | 2013-04-10 | 鞍钢股份有限公司 | Method for improving performance of non-oriented electrical steel high-efficiency and high-grade product |
-
2015
- 2015-04-23 CN CN201510196082.6A patent/CN104818369A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002365A (en) * | 2003-06-09 | 2005-01-06 | Chuo Spring Co Ltd | High strength stabilizer |
| CN1672866A (en) * | 2005-04-14 | 2005-09-28 | 重庆大学 | Machining process capable of improving punching performance of magnesium alloy plate and belt |
| JP2007291466A (en) * | 2006-04-26 | 2007-11-08 | Nsk Ltd | Surface-treating method of metal, rolling-sliding member and rolling device |
| CN101688270A (en) * | 2007-06-28 | 2010-03-31 | 住友电气工业株式会社 | Magnesium alloy plate |
| CN102127724A (en) * | 2010-11-11 | 2011-07-20 | 中南大学 | Method for preparing magnesium alloy plate strip with grain size in symmetric gradient distribution along plate thickness direction |
| CN102154597A (en) * | 2011-02-22 | 2011-08-17 | 中南大学 | Processing method for refining crystal grains and improving texture of double surface layers of magnesium alloy plate strip |
| CN103031426A (en) * | 2011-09-29 | 2013-04-10 | 鞍钢股份有限公司 | Method for improving performance of non-oriented electrical steel high-efficiency and high-grade product |
| CN102744902A (en) * | 2012-05-07 | 2012-10-24 | 罗凯 | Soft and hard roller continuous cyclic bending method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508616A (en) * | 2019-08-22 | 2019-11-29 | 燕山大学 | The method for realizing that metal material surface gradient is strengthened is rolled by ripple |
| CN110508616B (en) * | 2019-08-22 | 2020-09-01 | 燕山大学 | Method for realizing gradient strengthening of surface of metal material by corrugation rolling |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150805 |
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| RJ01 | Rejection of invention patent application after publication |