FR2568796A1 - PROFILING OF I AND U LAMINATED BEAMS IN A REVERSIBLE DEGREASER TRAIN AND A CONTINUOUSLY CONTINUOUS FINISHER TRAIN - Google Patents

Abstract

A.PROFILING LAMINATED I AND U BEAMS IN A REVERSIBLE GRINDING TRAIN AND A CONTINUOUS ADJACENT FINISHER TRAIN. B. CHARACTERIZED IN THAT FOR AT LEAST TWO TO FOUR DIMENSIONS OF THE FINISHING PROFILE, THERE IS PROVIDED ONLY A SINGLE CALIBER OF THE MARKER PASS IN THE DEGROSSER TRAIN, AND THE DIMENSION OF THE CORRESPONDING CHAMBER OF THE CORRESPONDING CORE SUBSTANTIALLY TO THE WIDTH OF THE LARGEST SIZE OF THE LARGEST SIZE TO BE LAMINATED AND THE SIZE OF THE FENDER MATCHES MOSTLY THE HEIGHT OF THE FENDER OF THE LARGEST SIZE TO BE LAMINATED; C. THE INVENTION CONCERNS A PROFILING OF LAMINATED I AND U BEAMS IN A REVERSIBLE GRINDING TRAIN AND A CONTINUOUS, ADJACENT FINISHING TRAIN.

Description

Profiling of I and U rolled beams in a roughing train

  reversible and a finishing train, in

continuous, adjacent ".

  The invention relates to a means of cali-

  braking for I and U rolled beams from a reversible blanking train and a train

finishing, continuous, adjacent.

  A production line of the type described above for rolling beam profiles usually consists of a reversible Duo rolling mill stand, a break-down roll stand and finally, adjacent universal stands. , whose cages

  are mounted upstream or in an intermediate position

  diary. In order to be able to execute by rolling a given program of different beam sizes, it is known and usual to associate with each beam profile a separate guide pass in the cage of the blank line, to complete the rolling to the dimensions.

  in the successive cages of the final train.

  continuously. The rolling of the reference pass which designates the last pass of the reversible roughing train is done in the cage of the roughing train in three or five shaping passes according to the

profile dimensions.

  Where it was necessary to provide for each dimension of manufacture a correspondingly determined marker run, it is obvious that

  according to the number of reference runs,

  the same number of roll cylinder sets

  black, different for the break-down cage of the train de-

  Magnifier. Added to this is an extra set of

  linders to be prepared at the workshop and another set of cylinders

in reserve.

  This necessary situation is reflected

  necessarily high investment costs.

  in addition, very high storage costs.

  The present invention aims to

  the disadvantages described in the state of the art.

  to reduce the cost of investments and allow

  to be an economic rolling of a whole program of beams

  in a rolling train of the type given above.

  To this end, the invention relates to a means of the above type characterized in that for at least two to four profile dimensions to be manufactured, there is provided a single gauge of reference pass in a roughing train, and the dimension of the chamber of realization of the soul corresponds essentially to the

  width of the soul of the smallest dimension of

  to be rolled and the size of the wing is essentially the height of the wing of the largest

  manufacturing dimension to be rolled.

  If the invention makes it possible to make only one reference pass in the reduction cage for at least two finishing dimensions, this allows

  at the same time to halve the cost of

  ment. At the same time, the advantage is that only half of the sets of rolling mills required for the blank train are stored, which translates into

  by significantly lower storage costs.

  Finally, we arrive at another saving factor because the disassembly time of the reversible cage of the train 1-gne of blanks is reduced by at least half since according to the invention can be rolled up to four profiles

by a single marker pass.

  According to a particular characteristic

  of the invention, for rolling the smallest

  manufacture is carried out in the recycling cages.

  high wing displacement and to roll out the largest dimensions of manufacture, a strong elongation of the soul is

  the final production line continues.

  To achieve a strong extension of the core, it is provided according to another characteristic of the invention that the inclination of the wings on the cylinders

  horizontal rolling of the final production

  is increasing in a range of about

  than 25 cage cage from the first cage

  towards her. This strong inclination of the wings in the cages of the production line not only allows

  the strong extension of the soul of the im-

  but also an interesting finishing machining

  horizontal rolling cylinders by lathe finishing and corresponding preparation in the chamber

for the realization of the soul.

  An exemplary embodiment of the invention

  tion is shown in the drawings and will be described below.

  after comparison with a conventional calibration means.

  A standard rolling program for a production line according to the invention provides the following profiles for the range of beams

IPE 100 - 220

HEA 100 - 160

IPN 100 - 220

  In addition there are also beam profiles having substantially large dimensions in

  inch like beams IWF 3oist and 3unior.

  As in such programs of

  known, habitual, as already indicated, it is necessary to

  a separate marker pass in the reduction cage.

  for each beam profile, rolling until the final dimensions in the line

  continuous, the following sets of rolling rolls are required:

  for the reduction cage: IPE 100 and 120: a game IPE 140: a game IPE 160: a game IPE 180: a game IPE 200: a game IPR 220: a game HE 100 and 120: a game HE 140: a game HE 160: a game

  For the entire program of

  beams, it takes nine sets of cylinders of

  rolling including equivalent dimensions in inches.

  As already indicated, a set of roll cylinders is required.

  swimming in the workshop and a set of rolling rolls in reserve, this translates into a fleet of cylinders of

  27 sets of rolling rolls that is 54 cylinders

ders.

  The invention provides for rolling up to four profile dimensions, for example IPE 160, by means of a marker run from the reduction cage.

  220 in the continuous finishing train, next.

  For example, the following cylinder sets are required for the same beam production program: IPE 100 up to 140 one set IPE 160 up to 220 one set HE 100 up to 120 one set HE 140 up to to 160 a game

  For the entire program of

  only four sets of cylinders according to the invention, including the dimensions

equivalent in inches.

  The investment costs are thus divided by 2.25, the storage costs are much lower and the times of transformation of the cage

  reduction can be reduced.

  The grouping of the reference runs for the different finishing dimensions in a reference pass gauge of the reduction cage requires a corresponding adaptation of the calibration of a universal rolling mill of the production line. Such a corresponding calibration means is represented in the

  example drawing for dimensions IPE 160 ...

  220 of the reduction cage. This calibration scheme

  be the dimensions of the beach's reference passes

  of rolling girders result in different rolling

  only in the finishing line, the essential feature being that the IPE beam

  undergoes a strong compression of the wings and an extension-

  of the soul in the first cage of refoul-

  E 1 while the wings of the beam IP 220

  are hardly compressed in the first cage of

  E 1 and that its wing is lengthened by

  noticeable way. This is developing in the uni-

  versels and the universal sizes U 6 ... U 1 have an increasing inclination of the wings for the horizontal cylinders from 0.5 for the cage U 6 up to 25 in the

cage U 1.

Claims (3)

  1) Profiling of I-beams and U-beams rolled in a reversible roughing train, and a finishing train, continuous, adjacent, medium characterized in that, for at least two to four dimensions of the finishing profile, no provision is made for that a roughing train with a basic profile, and the dimension of the chamber of realization of the soul corresponds   essentially to the width of the soul of the smallest dimension   finish and the size of the wing corresponding to the   basically lays at the height of the wing of the largest finishing dimension to be rolled.   2) Profiling according to claim 1, characterized in that for rolling the smallest finishing dimension, is carried in the discharge cages, a strong discharge of the wings and to roll the largest finishing dimensions, it performs a strong elongation of   the soul every time inside the finishing train, continuous.   3) Profiling according to any of the   Claims 1 and 2, characterized in that the inclination of the wings on the horizontal rolling rolls of the finishing cage increases in a range of about 0.5 up to     cage cage from the first universal cage.