SU1670383A1 - Method of determining strip plate parameters in hot- rolling plate mill - Google Patents

Abstract

The invention relates to instrumentation technology and can be used to determine the parameters of the roll when hot rolling on plate mills. The purpose of the invention is to improve the accuracy of determining the angle of rotation of the roll relative to the direction of rolling on the plate mills by eliminating the error associated with a variable width of the roll. The radiation emitted by the peal is recorded at points located along two straight, perpendicular to the rolling direction and lying in a plane parallel to the plane of the peal, determine the width of the radiation intensity distribution along these straight lines, change the distance between the straight lines to obtain an equal width intensity distributions along both straight lines and according to coordinates of the boundaries of the intensity distributions and the distance between the straight lines determine the angle of rotation of the roll relative to the direction of the rolling. 1 il.

Description

The invention relates to a measuring and measuring technique and can be used to determine roll parameters during hot rolling on plate mills.

The purpose of the invention is to improve the accuracy of determining the angle of rotation of the roll relative to the direction of rolling on the plate mills by eliminating the error associated with a variable width of the roll.

A method for determining roll parameters during hot rolling is illustrated in FIG.

The device for implementing the method contains two lines 1 and 2 of fiber-optic converters, which are installed

perpendicular to the rolling direction a-a in the holder 3, the holder 3 is configured to mutually move the lines 1 and 2 of the fiber-optic converters along the rolling direction

The method is implemented as follows.

Radiation emitted from the hot surface of roll 4 falls on the input ends of fiber-optic converters of lines 1 and 2. Through the fibers, radiation reaches the output ends that are associated with the display system (not shown) Let the number of exposed ends of line 1 be equal to (Ni- Ni), and rulers 2 - (Nz-Na) where NI is the sequence number of the transducer end of the l-th ruler Then at a distance I

ABOUT

Vi o co

00

00

between rulers 1 and 2, the angle of rotation is determined in the display system from the ratio, |

„INi - N2I D1,

and arctg (i JNi - NjlAI

)

or

).

and arctg (r

where Dg-1 is the distance between the ends of the transducers.

The width a of the piece is determined by the expression n i

a (Ni - Ni) cosa.

To eliminate measurement errors caused by variable width of the roll, lines 1, 2 move together and achieve an equal width of the intensity distribution along both lines so that the condition INi - N1 INa - N3 is fulfilled, at this position the angle of rotation of the roll is determined relative to the rolled axis.

Claims (1)

Invention Formula The method for determining the parameters of a roll burnout rolling, which consists in that the intensity of radiation from the surface of the monitored roll is recorded at a discrete number of points and, according to the distribution of the recorded intensity, parameters of the controlled roll are measured, in order to improve the accuracy of determining the angle of rotation of the roll relative to the rolling direction on the plate mills, The intensity is recorded at points located along two straight, perpendicular to the rolling direction and lying in a plane parallel to the plane of the log, while simultaneously determining the width of the intensity distribution along these straight lines and changing the distance between the straight lines to obtain an equal width of the intensity distribution. along both straight lines, then the distance between the straight lines and the coordinates of the intensity distribution boundaries along these straight lines are determined, and the angle of rotation of the roll is determined from the data obtained.