CN201249196Y

CN201249196Y - Curved surface module of heavy side pressure width gauge

Info

Publication number: CN201249196Y
Application number: CNU200820152512XU
Authority: CN
Inventors: 陈宁国; 王金涛; 高群永
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2008-08-29
Filing date: 2008-08-29
Publication date: 2009-06-03
Anticipated expiration: 2018-08-29

Abstract

The utility model relates to a rolling metal processing module, in particular to a module for a heavy side pressure width gauge. In the curved surface module of heavy side pressure width gauge, a working surface (1) comprises a plane (11) and an oblique plane (12), wherein short slots (3) are arranged on the plane (11) and the oblique plane (12), the plane (11) and an oblique plane (12) are curved surfaces, and an intersecting line of any vertical cross section and the curved surfaces along the length direction of the module is composed of a first splineway (14), a convex line (15) and a second splineway (16). The curved surface module can effectively control the generation of dog bone defects in the side pressing process, and defects of edge portions of strip steels in the subsequent rolling process are reduced, the strip steel quality is improved, and the production cost is reduced.

Description

Large lateral pressure constant width machine curved surface module

Technical field

The utility model relates to a kind of rolling metal processing module, relates in particular to large lateral pressure constant width machine module.

Background technology

Original SP (Sizing Press) module, promptly the module used of large lateral pressure constant width machine is monocline face mould piece, modular angle be 12 ° as Fig. 1, module is a rectangular shape, working face 1 comprises a plane 11 and an inclined-plane 12, has short groove 3 on plane 11 and the inclined-plane 12, and working face 1 highly is 500mm.Band steel plate type was poor when this module subject matter in use was large lateral pressure, produced bigger camber, and dog bone defective is comparatively serious simultaneously.Dog bone defective also can cause strip edge portion to produce more defective in follow-up composite rolling process, and this problem is particularly outstanding during rolling silicon steel.

According to the metal plastic deformation theory, in the SP side pressure process under module and band steel body two firm end effects, limit portion metal is comparatively difficult along the extension on length and the width, and thickness direction is not owing to there is the effect of end just, metal flows to this direction easily, thereby produce dog bone defective, in composite rolling process subsequently, because slab corner portion temperature drop is very fast, be torn easily in the operation of rolling, thereby produce a series of edge fault, so control dog bone generation of defects is the prerequisite that guarantees strip edge portion quality.

The utility model content

The purpose of this utility model is to provide a kind of large lateral pressure constant width machine curved surface module, and this module working face is a curved surface, can effectively control dog bone generation of defects in the side pressure process, reduces strip edge portion defective in the follow-up operation of rolling.

The utility model is achieved in that a kind of large lateral pressure constant width machine curved surface module, its working face comprises a plane and an inclined-plane, have short groove on plane and the inclined-plane, described plane and inclined-plane are curved surface, are made of continuously first concave, convex line and second concave along the intersection of arbitrary longitudinal section on the block length direction and described curved surface.

The curvilinear equation of described intersection is:

First concave: y=0.00166493x ²-0.258065x 0≤x≤155

Convex line: y=-0.0015625x ²+ 0.734375x-76.28906 155≤x≤315

Second concave: y=0.0015625x ²-1.234375x+233.7890625 315≤x≤475

In the formula:

X axle and y axle are respectively working face lateral edges and the longitudinal section top edge of original module along arbitrary longitudinal section on the block length direction.

The described first concave height, convex line height and the second concave height three equate that the first concave length, convex line length and the second concave length three ratio are 32:31:32.

The curved surface of the utility model curved surface module mainly is divided into three parts, a convex surface and two concave surfaces, in the asynchronous region length in increasing deformation process, reduce the resistance of metal flow on the deformed region width, to increase the amount of flow of metal on the width, reduce the amount of flow of metal on the thickness direction, thereby reach the purpose that control band steel dog bone produces.

The utlity model has following beneficial effect: the curved surface module can effectively be controlled band steel dog bone generation of defects in the side pressure process, thereby a series of defectives that strip edge portion was produced during subsequent horizontal was rolling have greatly been reduced, improved quality, reduced band steel production cost, the curved surface module is the same with original module simultaneously, it is big to have contact area, distortion stabilized uniform characteristics, and using the curved surface module does not need existing equipment is done any transformation, easy to use, during use to the normal operation of rolling equipment without any harmful effect.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is original technology large lateral pressure constant width machine module diagram, and wherein a is a front schematic view, and b is an elevational schematic view, and c is the longitudinal section schematic diagram;

Fig. 2 is the utility model large lateral pressure constant width machine curved surface module diagram, and wherein a is a front schematic view, and b is an elevational schematic view, and c is the longitudinal section schematic diagram;

Among the figure: 1 working face, 11 planes, 12 inclined-planes, 14 first concaves, 15 convex lines, 16 second concaves, 3, lack groove, the H1 first concave height, H2 convex line height, the H3 second concave height, the L1 first concave length, L2 convex line length, the L3 second concave length, x axle and y axle are respectively working face lateral edges and the longitudinal section top edge of original module along arbitrary longitudinal section on the block length direction.

The specific embodiment

Referring to Fig. 2, a kind of its working face 1 of large lateral pressure constant width machine curved surface module comprises a plane 11 and an inclined-plane 12, have short groove 3 on plane 11 and the inclined-plane 12, described plane 11 and inclined-plane 12 are curved surface, are made of continuously first concave 14, convex line 15 and second concave 16 along the intersection of arbitrary longitudinal section on the block length direction and described curved surface.

Referring to Fig. 1 c, Fig. 2 c, with original module along the working face lateral edges of arbitrary longitudinal section on the block length direction and longitudinal section top edge as x axle and y axle, three sections curvilinear equations of described intersection are:

The first concave 14:y=0.00166493x ²-0.258065x 0≤x≤155

Convex line 15:y=-0.0015625x ²+ 0.734375x-76.28906 155≤x≤315

The second concave 16:y=0.0015625x ²-1.234375x+233.7890625 315≤x≤475

The first concave height H 1, convex line height H 2 and the second concave height H, 3 threes equate that the first concave length L 1, convex line length L 2 and the second concave length L, 3 three's ratios are 32: 31:32.

As value be: L1=160mm, L2=155mm, L3=160mm during H1=H2=H3=10mm, rolls the back and produces band steel dog bone minimum.

The utility model curved surface module is used through the actual production of a period of time, and statistics draws, and for the recurrent several silicon steel of front portion line defect, using the rolling strip edge portion defective appearance amount of curved surface module only is about 1/2nd of original module.In addition, draw the finished product accuracy indifference that the finished product that the curved surface module is rolling and original module are rolling after testing; Through to the check of machine utilization in the operation of rolling, when the curved surface module is used to the normal operation of rolling equipment without any harmful effect.

Claims

1, a kind of large lateral pressure constant width machine curved surface module, its working face (1) comprises a plane (11) and an inclined-plane (12), have short groove (3) on plane (11) and inclined-plane (12), it is characterized in that, described plane (11) and inclined-plane (12) are curved surface, are made of continuously first concave (14), convex line (15) and second concave (16) along the intersection of arbitrary longitudinal section on the block length direction and described curved surface.

2, large lateral pressure constant width machine curved surface module as claimed in claim 1 is characterized in that the curvilinear equation of described intersection is:

First concave: y=0.00166493x ²-0.258065x 0≤x≤155

Convex line: y=-0.0015625x ²+ 0.734375x-76.28906 155≤x≤315

Second concave: y=0.0015625x ²-1.234375x+233.7890625 315≤x≤475

In the formula:

3, large lateral pressure constant width machine curved surface module as claimed in claim 2, it is characterized in that, the first concave height (H1), convex line height (H2) and second concave height (H3) three equate that the first concave length (L1), convex line length (L2) and second concave length (L3) the three ratio are 32:31:32.