Regulating method of outlet lifting roller way of steel rail rolling mill

A technology of rail rolling mill and adjustment method, which is applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as side bending and hard bending defects, and achieve the effects of improving surface quality, reducing scratches, and prolonging life

Inactive Publication Date: 2012-10-17
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of existing rail rolling mill outlet lifting roller tables that cannot match the rail tapping state and easily form side bending and hard bending defects, the technical problem to be solved by the present invention is to provide a rail rolling mill that can better match the rail tapping state The adjustment method of the exit lifting roller table, so as to reduce the hard bending defects of the rail side caused by the steel tapping

Method used

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  • Regulating method of outlet lifting roller way of steel rail rolling mill
  • Regulating method of outlet lifting roller way of steel rail rolling mill
  • Regulating method of outlet lifting roller way of steel rail rolling mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] There are three universal rolling mills, universal intermediate milling and universal finishing mills in a certain universal rolling area, where E1, E2 and UF stands are the tapping stands of the three mills.

[0038] E1 and E2 racks have a length of 16.5m for the exit lifting roller table, 12 rollers are used, the diameter of the roller is 310mm, the horizontal distance between two adjacent rollers is 1500mm, the distance from the centerline of the first roller to the centerline of the roller It is 1950mm.

[0039] The length of the lifting roller table at the exit of the UF frame is 6m, using 5 rollers, the diameter of the roller is 310mm, the horizontal distance between two adjacent rollers is 1500mm, and the distance from the centerline of the first roller to the centerline of the roll is 1950mm. The entire exit lifting roller table is composed of a section of sub-roller table.

[0040] Process: Take the U75V 60kg / m rail as the standard rail, and establish the curve ...

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Abstract

The invention discloses a regulating method of an outlet lifting roller way of a steel rail rolling mill excellently matched with a steel tapping state of a steel rail. The outlet lifting roller way consists of at least five rollers which are arranged at intervals. The method comprises the following steps of: determining a standard rail; building outlet lifting roller way curve models of each stand matched with the standard rail according to theoretical calculation and actual analysis; correspondingly acquiring curves of the corresponding outlet lifting roller ways based on the models according to the influence on deformation bending conditions of the steel rails stressed by the gravity during steel tapping by actual material change, specification change, temperature change and pass change in rolling; and regulating the height of each roller. With the method, sidewise bending and hard bending defects caused by steel tapping can be reduced.

Description

technical field [0001] The invention relates to a lifting roller table at the exit of a rail rolling mill, in particular to an adjustment method for the lifting roller table at the exit of a rail rolling mill. Background technique [0002] At present, the exit lifting roller table of rail rolling mills at home and abroad is composed of multiple horizontal rollers arranged at intervals. The entire exit lifting roller table can generally be divided into two sections. The section close to the rolling mill is a horizontal roller table that can move up and down. The other section is a slanted roller table that swings up and down. The centerlines of these two sections of roller table together constitute the curve of the exit lifting roller table. The curve of the exit roller table can be adjusted according to the type of rolling and the temperature of the rolled piece, that is, The height of the horizontal roller table is adjusted, and the slope of the inclined roller table is adj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B39/00
Inventor 陶功明赵云陈崇木王彦忠吴远洪李光跃
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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