CN101607267A - Curve transition method between periodic longitudinal variable-thickness strip Hou Qu and the thin district - Google Patents

Curve transition method between periodic longitudinal variable-thickness strip Hou Qu and the thin district Download PDF

Info

Publication number
CN101607267A
CN101607267A CNA2009100124003A CN200910012400A CN101607267A CN 101607267 A CN101607267 A CN 101607267A CN A2009100124003 A CNA2009100124003 A CN A2009100124003A CN 200910012400 A CN200910012400 A CN 200910012400A CN 101607267 A CN101607267 A CN 101607267A
Authority
CN
China
Prior art keywords
curve
district
thickness
hou
leading type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2009100124003A
Other languages
Chinese (zh)
Other versions
CN101607267B (en
Inventor
刘相华
支颖
张殿华
胡贤磊
孙涛
矫志杰
吴志强
李旭
孙杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Dongbao Haixing Metal Material Technology Co ltd
Original Assignee
Northeastern University China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northeastern University China filed Critical Northeastern University China
Priority to CN2009100124003A priority Critical patent/CN101607267B/en
Publication of CN101607267A publication Critical patent/CN101607267A/en
Application granted granted Critical
Publication of CN101607267B publication Critical patent/CN101607267B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

Curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu and the thin district belongs to rolling technical field, particularly a kind ofly utilizes rolling method directly to produce curve transition method between Hou Qu and thin district the in the periodic longitudinal variable-thickness strip technical field.The invention provides and a kind ofly can couple together the vertical two kinds of different thickness areas of band by rolling, at the tie point place smooth kiss connect, the curve transition method between the periodic longitudinal variable-thickness strip Hou Qu of mild transition and thin the district.This method adopts following four types easement curve to carry out curve transition between Hou Qu and the thin district: two arc leading type easement curves that (1) is formed in tangent place backlight slip less than the tangent arcs of 90 degree by two sections radians; (2) the straight line leading type easement curve that is formed by connecting by line smoothing; (3) by the circular arc smooth concave arc leading type easement curve that be formed by connecting of one section radian less than 90 degree; (4) by the smooth curve leading type easement curve that is formed by connecting of high order curve.

Description

Curve transition method between periodic longitudinal variable-thickness strip Hou Qu and the thin district
Technical field:
The invention belongs to rolling technical field, particularly a kind ofly utilize rolling method directly to produce Hou Qu in the periodic longitudinal variable-thickness strip technical field and the curve transition method between the thin district.
Background technology:
Become common recognition under the new situation in world energy sources, resource growing tension, sustainable development, the automobile loss of weight is subjected to people's attention.The appearance of laser assembly solder plate, the steel plates different thickness weld together, and realization is used for the loss of weight of the pressed sheet parts of vehicle body; But there is following shortcoming in laser assembly solder plate, as shown in Figure 1:
(1) increases series of processes, thereby increased production cost;
(2) many (or several) weld seams influence the surface quality of stamping parts;
(3) can only realize the sudden change of thickness in the commissure, can not accomplish that slab is connected with the transition of thin plate.
At these problems, proposed to utilize rolling method directly to produce periodic longitudinal variable-thickness strip (PeriodicLongitude Profile Strip), be called for short the PLP band, as shown in Figure 2, crosscut becomes longitudinal variable-thickness sheet material (DTS, Difference Thickness Sheet) later on, is called for short difference slab or DTS plate, to improve the quality, to reduce cost, in order to replace the poor slab of laser assembly solder plate.
Utilizing rolling method directly to produce poor slab need have transition region between Hou Qu and thin district, the shape of transition region and size have significant effects to the shaping and the serviceability of difference slab, and the shape of transition region and size are determined by easement curve.
Summary of the invention:
Can only realize the problem of abrupt changes in thickness in the commissure at existing laser assembly solder plate, the invention provides and a kind ofly can couple together the vertical two kinds of different thickness areas of band by rolling, at the tie point place smooth kiss connect, the curve transition method between the periodic longitudinal variable-thickness strip Hou Qu of mild transition and thin the district.
To achieve these goals, the present invention adopts following technical scheme, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu and the thin district, and this method adopts following four types easement curve to carry out curve transition between Hou Qu and thin the district:
(1) the two arc leading type easement curves that form in tangent place backlight slip less than 90 tangent arcs of spending by two sections radians;
(2) the straight line leading type easement curve that is formed by connecting by line smoothing;
(3) by the circular arc smooth concave arc leading type easement curve that be formed by connecting of one section radian less than 90 degree;
(4) by the smooth curve leading type easement curve that is formed by connecting of high order curve.
Described pair of arc leading type easement curve determined according to following formula:
When 0 ≤ x ≤ l 2 The time, y = 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - x 2
When l 2 ≤ x ≤ l The time, y = 1 2 ( h b - h a ) - 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - ( x - l ) 2
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
Described straight line leading type easement curve is determined according to following formula:
y = ( h b - h a ) 2 l · x
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
Described concave arc leading type easement curve is determined according to following formula:
y = 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) ) 2 - x 2
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
When described curve leading type easement curve adopts the cube function curve, determine according to following formula:
y = 3 2 ( h b - h a ) l 2 x 2 - h b - h a l 3 x 3
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
Beneficial effect of the present invention:
1) shape and the size of the transition region of the band by curve transition method production of the present invention can be selected according to the stressing conditions of parts, also can control according to user's needs;
2) transition region of the band of producing by curve transition method of the present invention is continuous in the intersection, smooth, easily by rolling method acquisition;
3) it is easy that curve transition method of the present invention changes THICKNESS CONTROL, can produce the sheet material of thickness combination more than two kinds easily;
4) four types easement curve of curve transition method employing of the present invention all has definite Mathematical Modeling, is suitable for implementation model control.
Description of drawings:
Fig. 1 is the structural representation of existing laser assembly solder plate;
Fig. 2 is the structural representation that adopts the poor slab of curve transition method processing of the present invention;
Fig. 3 is the schematic diagram of poor slab that transition region adopts four types easement curve;
(a) be the schematic diagram that transition region adopts the poor slab of two arc leading type easement curves;
(b) be the schematic diagram that transition region adopts the poor slab of straight line leading type easement curve;
(c) be the schematic diagram that transition region adopts the poor slab of concave arc leading type easement curve;
(d) be the schematic diagram that transition region adopts the poor slab of curve leading type easement curve;
Fig. 4 is four types the schematic diagram of easement curve in rectangular coordinate system;
(a) be the two schematic diagrames of arc leading type easement curve in rectangular coordinate system;
(b) be the schematic diagram of straight line leading type easement curve in rectangular coordinate system;
(c) be the schematic diagram of concave arc leading type easement curve in rectangular coordinate system;
(d) be the schematic diagram of curve leading type easement curve in rectangular coordinate system;
Wherein, among Fig. 1,1-slab, 2-weld seam, 3-thin plate; Among Fig. 2, the thick district of 4-, 5-transition region, the thin district of 6-.
The specific embodiment:
Curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu and the thin district, this method adopt following four types easement curve to carry out curve transition between Hou Qu and thin the district:
(1) two arc leading type easement curves: shown in Fig. 3 (a), formed in tangent place backlight slip by the tangent arcs of two sections radians less than 90 degree, two sections circular arcs connect with Hou Qu and the thin kissing of distinguishing;
(2) straight line leading type easement curve: shown in Fig. 3 (b), be formed by connecting by a line smoothing, the straight line intersection connects with the circular arc kiss, and shape is fairly simple;
(3) concave arc leading type easement curve: shown in Fig. 3 (c), by circular arc smooth be formed by connecting of one section radian less than 90 degree, this easement curve is saved metal than two arc leading type easement curves, but the difficulty that realizes is bigger;
(4) curve leading type easement curve: shown in Fig. 3 (d), be formed by connecting, can adapt to different shape needs, relatively be typically and get the cube function curve by high order curve is smooth.
More than in four types the easement curve, two arc leading type easement curves and concave arc leading type easement curve are adapted to short transition region, straight line leading type easement curve and curve leading type easement curve are adapted to long transition region.
Describe below in conjunction with the process of asking for of accompanying drawing the Mathematical Modeling of easement curve of the present invention four types:
The Mathematical Modeling of two arc leading type easement curves to ask for process as follows:
Shown in Fig. 4 (a), it is tangent at the b point to choose radius R two equal segments circular arc, and the thin district of difference slab links to each other at a point with easement curve, and tie point is smooth mild, and the thick district of difference slab links to each other at the d point with easement curve, and tie point is smooth mild; C point, e point are respectively the center of circle of two sections circular arcs.For handling conveniently, the origin of coordinates is taken at a point that thin district links to each other with easement curve, wherein, and y dBe the thick difference in Hou Qu and thin district half.If the length of transition region is l, the thickness in Bao Qu He Hou district is respectively h aAnd h b, then have:
x b = l 2 , y b = 1 4 ( h b - h a ) , x d=l, y d = 1 2 ( h b - h a ) - - - ( 1 )
The general type of getting two sections circular curves is:
(x-x c) 2+ (y-y c) 2=R 2When 0 ≤ x ≤ l 2 The time (2)
(x-x e) 2+ (y-y e) 2=R 2When l 2 ≤ x ≤ l The time (3)
In the coordinate system shown in Fig. 4 (a), can draw:
x c=0,y c=R, R 2 = 1 4 l 2 + ( R - 1 4 ( h b - h a ) ) 2 - - - ( 4 )
x e=l, y e = y d - R = 1 2 ( h b - h a ) - R - - - ( 5 )
Then (2) formula can be expressed as:
x 2+(y-R) 2=R 2 (6)
Then (3) formula can be expressed as:
( x - l ) 2 + ( y - 1 2 ( h b - h a ) + R ) 2 = R 2 - - - ( 7 )
The above equation of simultaneous can get:
R = 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) - - - ( 8 )
By (6) Shi Kede:
When 0 ≤ x ≤ l 2 The time, y = R + R 2 - x 2 , (8) formula substitution is got:
y = 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - x 2 - - - ( 9 )
By (7) Shi Kede:
When l 2 ≤ x ≤ l The time, y = 1 2 ( h b - h a ) - R + R 2 - ( x - l ) 2 , (8) formula substitution is got:
y = 1 2 ( h b - h a ) - 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - ( x - l ) 2 - - - ( 10 )
(9), (10) formula is the Mathematical Modeling expression formula of two arc leading type easement curves.Bring different parameters into, can obtain concrete expression formula, as shown in table 1.Connect Hou Qu and Bao Qu according to such curve, can guarantee that tie point is continuous, smooth, mild.
The formula that embodies of the Mathematical Modeling of following pair of arc leading type easement curve of table 1 different parameters
Figure G2009100124003D000413
Figure G2009100124003D00051
The Mathematical Modeling of straight line leading type easement curve to ask for process as follows:
Shown in Fig. 4 (b), easement curve links to each other in the thin district of a point with the difference slab, and the thick district with the difference slab links to each other at the b point.For handling conveniently, the origin of coordinates is taken at a point that easement curve links to each other with thin district, wherein, and y bBe the thick difference in Hou Qu and thin district half.If the length of transition region is l, the thickness in Bao Qu He Hou district is respectively h aAnd h b, then have:
x b=l, y b = 1 2 ( h b - h a ) - - - ( 11 )
The general type of cut-off line is:
y=c 0+c 1x (12)
In the coordinate system shown in Fig. 4 (b), can draw:
x a=0,y a=0,x b=l, y b = 1 2 ( h b - h a ) - - - ( 13 )
The above equation of simultaneous can get:
c 0=0 c 1 = ( h b - h a ) 2 l - - - ( 14 )
With (14) formula substitution (12) Shi Kede:
y = ( h b - h a ) 2 l · x - - - ( 15 )
(15) formula is the Mathematical Modeling expression formula of straight line leading type easement curve.Bring different parameters into, can obtain concrete expression formula, as shown in table 2.Connect Hou Qu and Bao Qu according to such straight line, can guarantee that tie point is continuous, smooth, mild.
The formula that embodies of the Mathematical Modeling of straight line leading type easement curve under table 2 different parameters
Figure G2009100124003D00061
The Mathematical Modeling of concave arc leading type easement curve to ask for process as follows:
Shown in Fig. 4 (c), the thin district of difference slab links to each other at a point with easement curve, and tie point is smooth mild, and the thick district of difference slab links to each other at the b point with easement curve; The c point is the center of circle of circular arc, and R is the radius of circular arc.For handling conveniently, the origin of coordinates is taken at a point that thin district links to each other with easement curve, wherein, and y bBe the thick difference in Hou Qu and thin district half.If the length of transition region is l, the thickness in Bao Qu He Hou district is respectively h aAnd h b, then have:
x b=l, y b = 1 2 ( h b - h a ) - - - ( 16 )
The general type of getting circular curve is:
(x-x c) 2+(y-y c) 2=R 2 (17)
In the coordinate system shown in Fig. 4 (c), can draw:
x c=0,?y c=R, R 2 = l 2 + ( R - 1 2 ( h b - h a ) ) 2 - - - ( 18 )
Then (17) formula can be expressed as:
x 2+(y-R) 2=R 2 (19)
The above equation of simultaneous can get:
R = 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) - - - ( 20 )
(20) formula substitution (19) formula is then had:
y = 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) ) 2 - x 2 - - - ( 21 )
(21) formula is the Mathematical Modeling expression formula of concave arc leading type easement curve.Bring different parameters into, can obtain concrete expression formula, as shown in table 3.Connect Hou Qu and Bao Qu according to such curve, can guarantee that tie point is continuous, smooth, mild.
The formula that embodies of the Mathematical Modeling of concave arc leading type easement curve under table 3 different parameters
The Mathematical Modeling of curve leading type easement curve to ask for process as follows:
Shown in Fig. 4 (d), select the cube function curve as curve leading type easement curve, the thin district of difference slab links to each other at a point with easement curve, and the thick district of difference slab links to each other at the b point with easement curve.For handling conveniently, the origin of coordinates is taken at a point that thin district links to each other with easement curve; Wherein, y bBe the thick difference in Hou Qu and thin district half.If the length of transition region is 1, the thickness in Bao Qu He Hou district is respectively h aAnd h b, then have:
x b=l, y b = 1 2 ( h b - h a ) - - - ( 22 )
The general type of getting the cube function curve is:
y=c 0+c 1x+c 2x 2+c 3x 3 (23)
Smooth mild by coordinate system shown in Fig. 4 (d) and tie point, first derivative is zero, can draw:
y x=0=0, y x = x b = y b , y′ x=0=0, y x = x b ′ = 0 - - - ( 24 )
Ask for the first derivative of (23) formula:
y′=c 1+2c 2x+3c 3x 2 (25)
The above equation of simultaneous can get:
c 0=0,c 1=0, c 2 = 3 y b x b 2 , c 3 = - 2 y b x b 3 - - - ( 26 )
(26) formula substitution (23) formula is then had:
y = 3 y b x b 2 x 2 - 2 y b x b 3 x 3 - - - ( 27 )
(22) formula substitution (27) formula is then had:
y = 3 2 ( h b - h a ) l 2 x 2 - h b - h a l 3 x 3 - - - ( 28 )
Mathematical Modeling expression formula when (28) formula is curve leading type easement curve employing cube function curve.Bring different parameters into, can obtain concrete expression formula, as shown in table 4.Connect Hou Qu and Bao Qu according to such curve, can guarantee that tie point is continuous, smooth, mild.
The formula that embodies of the Mathematical Modeling when table 4 different parameters lower curve leading type easement curve adopts the cube function curve
Figure G2009100124003D00082

Claims (5)

1, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu and the thin district is characterized in that, this method adopts following four types easement curve to carry out curve transition between Hou Qu and thin the district:
(1) the two arc leading type easement curves that form in tangent place backlight slip less than 90 tangent arcs of spending by two sections radians;
(2) the straight line leading type easement curve that is formed by connecting by line smoothing;
(3) by the circular arc smooth concave arc leading type easement curve that be formed by connecting of one section radian less than 90 degree;
(4) by the smooth curve leading type easement curve that is formed by connecting of high order curve.
2, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu according to claim 1 and the thin district is characterized in that described pair of arc leading type easement curve is definite according to following formula:
When 0 ≤ x ≤ l 2 The time, y = 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - x 2
When l 2 ≤ x ≤ l The time, y = 1 2 ( h b - h a ) - 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 8 ( h b - h a ) ) 2 - ( x - l ) 2
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
3, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu according to claim 1 and the thin district is characterized in that described straight line leading type easement curve is definite according to following formula:
y = ( h b - h a ) 2 l · x
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
4, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu according to claim 1 and the thin district is characterized in that described concave arc leading type easement curve is definite according to following formula:
y = 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) + ( 4 l 2 + ( h b - h a ) 2 4 ( h b - h a ) ) 2 - x 2
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
5, the curve transition method between a kind of periodic longitudinal variable-thickness strip Hou Qu according to claim 1 and the thin district, when it is characterized in that described curve leading type easement curve adopts the cube function curve, determine according to following formula:
y = 3 2 ( h b - h a ) l 2 x 2 - h b - h a l 3 x 3
Wherein, l is the length of transition region, h aBe the thickness in the thin district of band, h bThickness for the thick district of band.
CN2009100124003A 2009-07-07 2009-07-07 Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip Active CN101607267B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100124003A CN101607267B (en) 2009-07-07 2009-07-07 Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100124003A CN101607267B (en) 2009-07-07 2009-07-07 Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip

Publications (2)

Publication Number Publication Date
CN101607267A true CN101607267A (en) 2009-12-23
CN101607267B CN101607267B (en) 2012-07-04

Family

ID=41481263

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100124003A Active CN101607267B (en) 2009-07-07 2009-07-07 Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip

Country Status (1)

Country Link
CN (1) CN101607267B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103294852A (en) * 2013-05-14 2013-09-11 陕西科技大学 Linear variable-thickness pressing plate structure and its size optimization method and application
CN103926834A (en) * 2014-03-20 2014-07-16 燕山大学 Curve transition method of variable thickness strip transition area
CN104690094A (en) * 2015-03-20 2015-06-10 北京汽车股份有限公司 Forming method of continuously variable thickness plates
CN104889158A (en) * 2015-05-14 2015-09-09 重庆交通大学 Rolling device of continuous differential thick plate
CN105363781A (en) * 2015-11-30 2016-03-02 太原科技大学 Rolling technological method for preparing wide thin plate billet through magnesium alloy cast-rolling plate
CN105423113A (en) * 2015-11-30 2016-03-23 太原科技大学 Determining method for shape and size of wide sheet blank prepared through magnesium alloy cast rolled plate
CN107478475A (en) * 2017-07-25 2017-12-15 东北大学 A kind of design method for characterizing the simple tension sample for rolling poor thick plate mechanics behavior
CN108397681A (en) * 2017-02-08 2018-08-14 鞍钢股份有限公司 A kind of longitudinal direction odd-shaped cross section steel plate and its production method
CN108397682A (en) * 2017-02-08 2018-08-14 鞍钢股份有限公司 A kind of longitudinal direction section steel plate and its production method
CN108655181A (en) * 2017-03-28 2018-10-16 宝山钢铁股份有限公司 A kind of material and preparation method thereof of laterally consecutive Varying-thickness
CN112605124A (en) * 2020-11-27 2021-04-06 广州普德机电设备有限公司 Rolling equipment and forming method for continuous variable cross-section thin steel plate
CN113695398A (en) * 2021-09-01 2021-11-26 苏州东宝海星金属材料科技有限公司 Manufacturing method of stainless steel rolled differential thickness plate related product

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414183B (en) * 2015-11-30 2018-06-26 太原科技大学 Roll-casting of magnesium alloy plate prepares the process of wide sheet

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103294852B (en) * 2013-05-14 2016-04-06 陕西科技大学 A kind of linear variable thickness rectangular platen structure and dimensionally-optimised methods and applications thereof
CN103294852A (en) * 2013-05-14 2013-09-11 陕西科技大学 Linear variable-thickness pressing plate structure and its size optimization method and application
CN103926834A (en) * 2014-03-20 2014-07-16 燕山大学 Curve transition method of variable thickness strip transition area
CN103926834B (en) * 2014-03-20 2016-10-12 燕山大学 A kind of curve transition method of variable-thickness strip transition region
CN104690094B (en) * 2015-03-20 2017-03-08 北京汽车股份有限公司 A kind of forming method of plate of continuous variable thickness
CN104690094A (en) * 2015-03-20 2015-06-10 北京汽车股份有限公司 Forming method of continuously variable thickness plates
CN104889158A (en) * 2015-05-14 2015-09-09 重庆交通大学 Rolling device of continuous differential thick plate
CN104889158B (en) * 2015-05-14 2017-02-01 重庆交通大学 Rolling device of continuous differential thick plate
CN105423113A (en) * 2015-11-30 2016-03-23 太原科技大学 Determining method for shape and size of wide sheet blank prepared through magnesium alloy cast rolled plate
CN105363781A (en) * 2015-11-30 2016-03-02 太原科技大学 Rolling technological method for preparing wide thin plate billet through magnesium alloy cast-rolling plate
CN105423113B (en) * 2015-11-30 2018-03-27 太原科技大学 Roll-casting of magnesium alloy plate prepares the blank shape and method for determining dimension of wide sheet
CN108397681A (en) * 2017-02-08 2018-08-14 鞍钢股份有限公司 A kind of longitudinal direction odd-shaped cross section steel plate and its production method
CN108397682A (en) * 2017-02-08 2018-08-14 鞍钢股份有限公司 A kind of longitudinal direction section steel plate and its production method
CN108655181B (en) * 2017-03-28 2019-11-22 宝山钢铁股份有限公司 A kind of material and preparation method thereof of laterally consecutive Varying-thickness
CN108655181A (en) * 2017-03-28 2018-10-16 宝山钢铁股份有限公司 A kind of material and preparation method thereof of laterally consecutive Varying-thickness
CN107478475A (en) * 2017-07-25 2017-12-15 东北大学 A kind of design method for characterizing the simple tension sample for rolling poor thick plate mechanics behavior
CN107478475B (en) * 2017-07-25 2019-11-08 东北大学 A kind of design method of the simple tension sample of the poor thick plate mechanics behavior of characterization rolling
CN112605124A (en) * 2020-11-27 2021-04-06 广州普德机电设备有限公司 Rolling equipment and forming method for continuous variable cross-section thin steel plate
CN112605124B (en) * 2020-11-27 2022-07-05 苏州吉润汽车零部件有限公司 Rolling equipment and forming method for continuous variable cross-section thin steel plate
CN113695398A (en) * 2021-09-01 2021-11-26 苏州东宝海星金属材料科技有限公司 Manufacturing method of stainless steel rolled differential thickness plate related product

Also Published As

Publication number Publication date
CN101607267B (en) 2012-07-04

Similar Documents

Publication Publication Date Title
CN101607267B (en) Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip
CN101954397B (en) Manufacture method of Z-shaped steel sheet pile through continuous cold roll forming
CN111215475B (en) Cold bending forming method of square sharp-corner steel pipe
CN204135117U (en) A kind of hot rolling and leveling machine roll system arrangement structure
CN101780507A (en) Method for manufacturing deep square cylindrical metal shell
CN101956389B (en) Omega-shaped corner pile and continuous roll type cold bending formation method thereof
CN102513473B (en) Continuous roller type cold-roll forming process for stainless steel covering panels of car bodies
CN106583492A (en) Continuous roller type cold bending forming method for sharp-angled rectangular tube
CN105108458A (en) Method for manufacturing unequal thickness steel pipe
CN101954399B (en) Straight-angle corner pile continuous rolling type cold-bending forming method
CN101992219A (en) Method for forming variable crown working (VCW) roll shape for strip steel plate shape control
CN1268452C (en) Method for making a rectangular steel tube with a closed angle
CN201116643Y (en) Rectangular round angle corrugated pipe
CN104400327B (en) The method of prefabricated Large Steel stoplog web camber
CN206892412U (en) A kind of miniature stainless steel tube
CN202591379U (en) Pre-flanging machine die
CN103128247A (en) Method for producing 60 mm extra-thick steel plates with low compression ratio
CN206981642U (en) Guy wire bender
CN103331373A (en) Wheel web bending aligning die
CN210713523U (en) Subtype core column combined special-shaped column
CN101526810B (en) Computer-assisted forming method of steel arch with wave webs
CN109484958B (en) Bending forming apron board
CN2213581Y (en) Roller for rolling hot bend extension device special-shaped steel
CN205200209U (en) Transversal joint pipe production equipment
CN104028685A (en) L-shaped-section large forging blank manufacturing method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20091223

Assignee: Shenyang Haixing Haixing metal Mstar Technology Ltd.

Assignor: Northeastern University

Contract record no.: 2013210000026

Denomination of invention: Curve transition method between thick regions and thin regions of periodic longitudinal variable-thickness strip

Granted publication date: 20120704

License type: Exclusive License

Record date: 20130402

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20171221

Address after: 110000 room No. 1005, Airport Road, Shenyang section, Shenyang, China (Liaoning) free trade test area, Liaoning Province, No. G4026 room number

Patentee after: SHENYANG DONGBAO HAIXING METAL MATERIAL TECHNOLOGY Co.,Ltd.

Address before: 110004 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3

Patentee before: Northeastern University

TR01 Transfer of patent right
EC01 Cancellation of recordation of patent licensing contract

Assignee: Shenyang Haixing Haixing metal Mstar Technology Ltd.

Assignor: Northeastern University

Contract record no.: 2013210000026

Date of cancellation: 20221014

EC01 Cancellation of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20091223

Assignee: Suzhou Dongbao Haixing metal material technology Co.,Ltd.

Assignor: SHENYANG DONGBAO HAIXING METAL MATERIAL TECHNOLOGY Co.,Ltd.

Contract record no.: X2022210000066

Denomination of invention: Curve Transition Method between Thick and Thin Areas of Periodically Longitudinal Variable Thickness Strip

Granted publication date: 20120704

License type: Common License

Record date: 20221209

EE01 Entry into force of recordation of patent licensing contract