SU833347A1

SU833347A1 - Method of producing composite rolling rolls

Info

Publication number: SU833347A1
Application number: SU792808393A
Authority: SU
Inventors: Лев Константинович Нагорный
Original assignee: Краматорский Научно-Исследовательскийи Проектно-Технологический Институтмашиностроения
Priority date: 1979-08-08
Filing date: 1979-08-08
Publication date: 1981-05-30

Description

(54) СПОСОБ ИЗГОТОВЛЕНИЯ СОСТАВНЫХ ПРОКАТНЫХ ВАЛКОВ(54) METHOD FOR MANUFACTURING COMPOUND ROLL ROLLS

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Изобретение относитс к обработке металлов давлением и может быть ; применено в машиностроительной промышленности; при изготовлении составных валков дл прокатных станов. The invention relates to the processing of metals by pressure and may be; applied in the engineering industry; in the manufacture of composite rolls for rolling mills.

Известен способ изготовлени составных прокатных валков, заключакщийс в изготовлении оси валка и бандажа сборке и их соединении пластическим деформированием с последующей выт жкой шеек валка til A known method of manufacturing composite rolls involves the manufacture of an axis of a roll and a band assembly and their combination by plastic deformation followed by stretching the necks of the roll til

Недостаток этого способа заключаетс в том, что пластическое деформирование в сборе производ т путем последовательной прот жки валка по его длине, что вл етс сложной операцией , отличающейс Продолжительностью и малой производительностью.The disadvantage of this method is that the plastic deformation of the assembly is carried out by successive stretching of the roll along its length, which is a complex operation, characterized by Duration and low productivity.

Цель изобретени - повышение про из водительности.The purpose of the invention is to increase the water content.

Поставленна цель достигаетс тем, что в способе изготовлени составных прокатных валков, заключающемс в изгото влении оси валка и бандажа, сборке и их соединении пластическим деф9РМированием с.,прследугацей выт жкой шеек валка,, соединение оси валка и бандажа производ т путем деформировани оси валка осадкой до The goal is achieved in that the method of manufacturing composite rolls, consisting in the manufacture of an axis of the roll and bandage, assembly and their combination by plastic deflection, with a roll neck and a bandage produced by deforming the axis of the roll with sediment before

полного заполнени металлом зазора между осью и бандажом по всей длине сопр гаемых поверхностей.complete filling of the gap between the axis and the shroud with the metal along the entire length of the mating surfaces.

При гор .чем деформировании оси (т.е. при ее осадке) металл течет в перпендикул рном прилагаемому усилию направлении и, заполн зазор между осью и бандажем, внедр етс в имеющиес микро-и макрсзнеровности посадочной поверхности бандажа. Эта операци существенно ускор ет прбцесс сопр жени оси и бандажа составного валка, в сравнении с известным способом .When the axis is deformed (i.e. when it is slumped), the metal flows in the direction perpendicular to the force applied and, filling the gap between the axis and the bandage, is introduced into the micro and macro-sphericalness of the mounting surface of the bandage. This operation significantly speeds up the process of mating the axle and banding of the composite roll, in comparison with the known method.

Изготовление составного прокатного валкапо предлагаемому способу осуществл етс .следующим образом.The manufacture of the composite rolling valcapo of the proposed method is carried out as follows.

Claims

After machining the bandage and the axis of the roll is subjected to heating in a chamber furnace. Heating is carried out to the forging temperature of 11501200 ° C. Before being fed to the press for planting, the seating surfaces of the banrazh and the axis were cleaned of the scale formed when heated, using a scraper, a brush and compressed air. After that. On the press table on the subvalve ring (plate with hole), the band is mounted vertically, the roll axis is inserted into it, thus making a free assembly in the vertical position of the roll components, the sleeve is positioned symmetrically along the axis along the hook. Then the axis is precipitated. The axis is deposited in axial and axial crossings until the axis of the gap between the belt and the belt is fully filled with metal. The degree of completeness of filling the gap with the metal of the axis is judged by a slightly - formed barrel - bandage during the course of the operation of the draft. After the draft is completed, the forging tool is retooled, and then the necks of both necks are pulled out. The barrel is straightened with sizing press strokes and a composite roller is transferred for further thermal and mechanical processing. The proposed method of manufacturing composite mill rolls in comparison with the known one provides for simplifying the process of joining the band to the axle and reducing the technological cycle of manufacturing composite rolls by 40-50%. The invention The method of manufacture of composite rolls, which consists in the manufacture of the axis of the roll and band, assembly and their connection by plastic deformation followed by elongation of the neck of the roll, so that, in order to increase productivity, the connection roll axis and bandage are produced by deforming the roll axis with sediment until the metal completely fills the gap between the axis and the bandage along the entire length of the mating surfaces. Sources of information, taken into account in the examination 1. USSR USSR Author's Certificate in Application I 2588632, clause B 21 K 1/06, 09.03.78 ..