SU642030A1

SU642030A1 - Method of knurling rolls

Info

Publication number: SU642030A1
Application number: SU772514644A
Authority: SU
Inventors: Валентин Александрович Тригуб; Виталий Александрович Тригуб; Леонид Иванович Ярославцев
Original assignee: Институт черной металлургии
Priority date: 1977-08-01
Filing date: 1977-08-01
Publication date: 1979-01-15

Description

II

Изобретение относитс к прокатному производству, а именно к усовершенст вованшо способов насечки прокатных валков.The invention relates to rolling production, in particular to improved methods for rolling mill notches.

Известен способ насечки прокатных валков, по которому угловую скорость валка при нанесении шероховатости иэMensDOT обратно пропорционально его катающему радиусу.There is a method of notching rolls, in which the angular velocity of the roll when applying the roughness and MensDOT is inversely proportional to its rolling radius.

Недостатком этого способа вл етс относительно невысокое быстродействие нанесени программной шероховатости .The disadvantage of this method is the relatively low speed of application of software roughness.

Известен также способ насечки прокатиых валков, заключающийс в том, что прокатному валку при нанесении шероховатости придают равномерное осевое врашение и нанос т шероховатость на его рабочую поверхность из сопла дробеструйного аппарата, перемещаемого вдоль образующей валка.There is also known a method of notching rolled rolls, in which the rolling roll, when applied to roughness, is uniformly axially damaged and the roughness is applied to its working surface from the nozzle of the shot blasting apparatus moved along the forming roller.

Способ предназначен дл насечки прокатных валков с целью получени холодокатаного листа с равномерной шероховатостью . Дл этого стрем тс попу чить равномерный микрорельеф поверлности валка.The method is intended to cut the rolls in order to obtain a cold-rolled sheet with a uniform roughness. For this purpose, the uniform microrelief of the roll face is sought.

Недостатком известного способа вл етс то, что он не предусматривает исключени вли ни эксцентриситета прокатных валков на толшину прокатываемого металла.The disadvantage of the known method is that it does not provide for the exclusion of the influence of the eccentricity of the rolls on the thickness of the rolled metal.

Цель изобретени - уменьшение продольной разнотолшинности проката за счет устранени вли ни эксцентрнсите та. Это достигаетс тем, что линейную скорость перемещени сопла дробестру ного аппарата при нанесении шерохов тости измен ют обратно пропорционально катающему радиусу прокатного волка.The purpose of the invention is to reduce the longitudinal tire thickness by eliminating the effect of eccentricity. This is achieved by the fact that the linear velocity of the nozzle of the shot-blasting apparatus during the application of roughness changes inversely proportional to the rolling radius of the rolling wolf.

Claims

According to the proposed method, for example, when notching rolls on CM-2 shot blasting machines, a rolling roll before notching is installed in the working chamber of the mashina CW-

2. The magnitude and nature of the change in eccentricity can be measured in rolling shops or in front of a notch. in the process of notching, the roll is given axial vrashenny and 1 roughness is applied to its working surface from the nozzle of the shot-blasting apparatus, which is scrolled along the forming roller. The range of amplitude variation of the speed of movement of the nozzle of the shot blasting apparatus is determined by the values of the eccentricities of the rolling rolls and the roughness values of their working surfaces. The proposed method can be implemented, for example, with the aid of the following device, with a rolling roller installed in the working chamber of the machine, the rolling mill bearing sensor is kinetically connected, BbixoA through which the unit is connected to the inlet of the shot-blasting unit. Before starting the machine, the mill roll is installed in its working chamber. Tied up The rolling mill pattern is coordinated with the position sensor. When the device is operated, the output of the task block will be a 6 O4 Enqueed signal in accordance with the position of the mill roll position (its eccentricity). The change of the signal is fed to the input of the speed setting unit and the drive for moving the nozzle of the shot-blasting unit. As a result, the speed of movement of the nozzle varies inversely with the eccentricity of the mill roll. The proposed method allows the working surface of the roll to give a notch a roughness that varies in proportion to the rolling radius. In this way, the effect of the roll eccentricity on thickness and rolling during rolling can be eliminated. The invention The method of notching rolling rolls, in which the roll is given axial rotation when applying roughness to its working surface, is 6 aphid and with the fact that, in order to eliminate the effect of the eccentricity of the rolls, the linear velocity of the nozzle of the shot blasting apparatus during the application of roughness change inversely proportional to the rolling radius of the roll.