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  • Research on Operation and Maintenance of Cold Roll
  • Analysis on the Causes of Surface Spalling of Work Rolls
  • Effective way to reduce roll consumption
  • In-situ observation of surface oxidation of roll
  • Analysis and Prevention of Staggered Rolls in Short-stress Rolling Mill

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  • Rolling Mill Technology (11)
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  • Steel Making Technology (15)
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  • Industry News
    Successful thermal test of induction heating and refining system for tundish

    Successful thermal test of induction heating and refining system for tundish

    Written by LMMGROUP

    The Baotou steel tundish induction heating project includes: Complete system design and supply, refractory design […]

    2 years ago
    14552 Views
  • Uncategorized
    Cold rolling

    Research on Operation and Maintenance of Cold Roll

    Written by LMMGROUP

    Abstract: Roller is the key contact technology equipment for strip production. In view of the […]

    19 mins ago
    0 Views
  • Rolling Mill Technology
    Roll surface peeling

    Analysis on the Causes of Surface Spalling of Work Rolls

    Written by LMMGROUP

    Cold rolling rolls are important large parts of cold tandem mills. Their manufacturing process is […]

    4 hours ago
    2 Views
  • Rolling Mill Technology
    roll

    Effective way to reduce roll consumption

    Written by LMMGROUP

    1.Overview The rolls are in direct contact with the rolled steel strip and are an […]

    23 hours ago
    4 Views
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  • Rolling Mill Technology
    Roll oxidation

    In-situ observation of surface oxidation of roll

    Written by LMMGROUP

    During the use of the roll, due to the surface contact between the roll and […]

    24 hours ago
    2 Views
  • Rolling Mill Technology
    The thrust bearing is damaged, resulting in a large amount of axial movement. (2) Bearing end cover, internal thread end cover, bearing seat, internal thread through cover end surface or thread is worn, and the clearance is too large, and axial movement will also occur. (3) The tension rod, the pressure-bearing flange, and the pressure-bearing ball pad are worn out, and the elastic damping body fails, etc., which will also cause axial movement. (4) The roll locking device is not tightened, and the axial adjustment device is too loose or too tight, which will also cause axial movement. (5)During roll turning, the gap between the upper and lower roll holes is inconsistent, resulting in misaligned rolls (not axial movement). 2.2 Wrong roll caused by steel rolling operation (1) The axial adjustment mechanism of the short-stress rolling mill has two types of layouts: left and right. The worm gear and worm spare parts of the two arrangements are the same and can be interchanged. However, the direction of axial movement of the adjusting roller is completely opposite (see Figure 1). When the adjusting worm is at the left end of the bearing housing, turn the adjusting worm clockwise, the roller rotates clockwise, and the upper roller moves along the non-adjusting end. When the adjusting worm is at the right end of the bearing seat, turn the adjusting worm counterclockwise, the roller rotates clockwise, and the upper roller moves along the non-adjusting end. Limited by the number of rolling mills, in the state of full-load production, the short-stress rolling mills are used in various lines, and the support operators come from each production line. If the operators do not pay attention to the position of the worm, adjust the direction of the axial movement of the rolling mill. Past experience may make adjustments in the wrong direction. At this time, the more you adjust, the greater the amount of mis-roller. Eventually, the adjustment mechanism will be crushed, and the adjustment will not be possible, and the roller will be forced to change. After the roll pass is adjusted in the axial direction, if the operator does not lock the set screw, the wrong roll will occur after a period of production.

    Analysis and Prevention of Staggered Rolls in Short-stress Rolling Mill

    Written by LMMGROUP

    1. Introduction Due to the axial movement of the rolls or other reasons, the pass […]

    2 days ago
    7 Views
  • Rolling Mill Technology
    rolling roll

    Roll use system

    Written by LMMGROUP

    1.Roll change requirements during normal rolling: work rolls continuously roll 150-200t steel, normal roll change; […]

    4 days ago
    5 Views
  • Rolling Mill Technology
    Steel plate

    The influence of plate shape control technology on the contact and wear between rolls

    Written by LMMGROUP

    Six-high UCM cold rolling mills currently use work roll shifting, intermediate roll shifting and roll […]

    4 days ago
    7 Views
  • Uncategorized

    Heating-free direct rolling technology for long sections

    Written by LMMGROUP

    1.The background and purpose of the research The energy consumption of the iron and steel […]

    1 month ago
    42 Views
  • Rolling Mill Technology

    Optimize hot-rolled strip roughing mill rolls to prevent early contact fatigue damage

    Written by LMMGROUP

    The roughing mill work rolls of many hot rolling mills in the world face the […]

    1 month ago
    39 Views
  • Steel Making Technology

    Classification, application, ratio of raw materials and damage mechanism of blast furnace mud

    Written by LMMGROUP

    Clay is an amorphous functional refractory material, used in the process of plugging the taphole […]

    1 month ago
    33 Views
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