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Two-rack reversible rolling device for rolling square and flat steel and steel rolling method thereof

A technology of square flat steel and rack, applied in the field of two-stand reversible rolling device, can solve the problems of low precision, unevenness, rolling piece mistakenly entering the pass pattern, etc., and achieve high positioning accuracy, good stability, and supporting force. strong effect

Inactive Publication Date: 2020-11-03
SICHUAN JIANGYOU LIUHE STEAM TURBINE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the rolling process, there are various deficiencies because the guide plates of each hole are not fixed
Moreover, in modern rolling mills, the feeding speed of the finishing stand is very high, and it is prone to failures that cause the rolled piece to enter the pass and "bend" or pass randomly on the plane of the rolling mill. It will also cause a lot of loss and waste in terms of production time and materials
At the same time, the existing structure of the guide plate of the rolling mill is also difficult to realize the rolling of square flat steel, because the positioning accuracy of the guide roll gap is not high, the rolled piece is prone to deformation and unevenness, and the rolled square flat steel has a poor appearance , low precision and other issues
Therefore, the existing rolling mill structure needs to be improved urgently

Method used

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  • Two-rack reversible rolling device for rolling square and flat steel and steel rolling method thereof
  • Two-rack reversible rolling device for rolling square and flat steel and steel rolling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a two-stand reversible rolling device for rolling square flat steel, which includes a stand, a rolling mill reversibly arranged on the stand, and a guide device connected with the rolling mill. The structure of the sanitary device is as figure 1 (mainly introducing the overall structure of the guide and guard device in the present invention), wherein, 1 is a swing arm, 2 is a guide and guard bracket, 3 is a clamping plate, 4 is an oil cylinder, 5 is a gland, 6 is a synchronous tooth plate 1, and 7 is a Synchronous tooth plate two.

[0030] The above-mentioned guide and guard device is connected with the rolling mill by adopting the splint type with adjustable spacing and the combination of hydraulic drive and locking and fixing. Specifically, the guide and guard device is arranged between the upper and lower beams of the frame 10 through the upper splint 8 and the lower splint 9, and a left guide 11 and a right guide 12 are respectively installed...

experiment example 1

[0041] Adopt the device provided in the embodiment of the present invention to carry out the rolling of square flat steel,

[0042] The steel is made of high-temperature alloy, rolled by the device of the embodiment of the present invention, and counts whether the workpiece is deformed in 100 working processes of rolling, and records it as deformation with a difference of more than 2mm from the target size, examines the deformation rate, and uses the traditional two-stand Reverse rolling was rolled as a control. The results show that: the deformation rate of steel rolled by the device provided by the embodiment of the present invention is 1.5%, while the deformation rate of the control example is 10%.

experiment example 2

[0044]Adopt the device provided in the embodiment of the present invention to carry out the rolling of square flat steel,

[0045] The steel material selects stainless steel to carry out the test, adopts the device of the embodiment of the present invention to carry out rolling, counts whether deformation occurs in the workpiece during 100 working processes of rolling, records as deformation with a difference of more than 2mm from the target size, examines the deformation rate, and uses the traditional two machine The reversible rolling of the rack was carried out as a control, and the results showed that the deformation rate of steel rolled by the device provided in the embodiment of the present invention was 0.5%, while the deformation rate of the control example was 5%.

[0046] By adopting the above-mentioned guide and guard device of the present invention, carry out the square flat steel rolling work as long as one year, and count the production situation and accident situ...

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Abstract

The invention provides a two-rack reversible rolling device for rolling square and flat steel and a steel rolling method of the two-rack reversible rolling device, and belongs to the technical field of steel rolling. The two-rack reversible rolling device comprises racks and a guide and guard device, and is characterized in that the guide and guard device is connected with a rolling mill in a spacing-adjustable clamping plate manner and a hydraulic driving and locking fixing combined manner. The two-rack reversible rolling method can be well used for rolling the square and flat steel, a guideroller gap of the device is high in positioning precision and strong in supporting force, the rolled square and flat steel is good in appearance and high in precision, meanwhile, stable operation of aworkpiece on a roller way can be well guaranteed, and the quality problems of rhombus, distortion, mistaken hole pattern entering of rolled pieces, oblique bending or disordered penetration on the plane of the rolling mill and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, and in particular relates to a two-stand reversible rolling device for rolling square flat steel and a steel rolling method thereof. Background technique [0002] The blanking machine is a two-roll reversible rolling mill, suitable for rough rolling, and is an ideal rolling mill equipment for rolling plain carbon steel, alloy steel, stainless steel, high-temperature alloy, copper, aluminum, etc. At present, the rolling mill equipment that realizes the metal rolling process is mainly composed of a motor, a reducer, a two-roll reversing rolling mill, a turning machine, and a guide device. [0003] The existing steel rolling process generally uses multiple rolling units for continuous rolling. In the continuous rolling production line, the continuous rolling unit is the core equipment of the entire production line and the key to the stable operation of the entire production line. The equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/08B21B39/16B21B31/02
CPCB21B1/0805B21B1/08B21B39/16B21B31/02
Inventor 洪玉春陈勇军熊伟刘仲林胡江荀家平
Owner SICHUAN JIANGYOU LIUHE STEAM TURBINE MATERIAL
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