A Method for Controlling Mold Cone Running

A technology for controlling crystallization and running cones, which is applied in the field of controlling crystallizer running cones. It can solve problems such as running cones and affecting the axial positioning size of the narrow side of the crystallizer, so as to reduce breakouts, eliminate running cones out of tolerance, and improve dimensional accuracy. Effect

Active Publication Date: 2014-10-08
ANGANG STEEL CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it directly affects the axial positioning dimension of the narrow side of the crystallizer, that is, the phenomenon of cone running occurs

Method used

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  • A Method for Controlling Mold Cone Running
  • A Method for Controlling Mold Cone Running
  • A Method for Controlling Mold Cone Running

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Embodiment 1

[0029] Due to factors such as hydrostatic pressure and drawing resistance, the narrow-faced copper plate is always subjected to a force in the direction of section expansion. If there is a gap between S1 and S2 in the width-adjusting mechanism, the copper plate will move to the outside to eliminate the gaps S1 and S2 to achieve a stable state. If S1≠S2, the set taper will change; if S1>S2, the taper will increase, which will increase the wear of the bottom edge of the narrow copper plate; if S1<S2, the taper will decrease, which will increase the risk of breakout; If S1=S2, the cross-sectional size of the slab will change.

[0030] When the transmission mechanism is subjected to axial tension, the axial gap between the elements is enlarged to the maximum, and when it is subjected to axial extrusion, the axial gap between the elements can be minimized.

[0031] When the pouring interval increases the section size, it is assumed that the current section width is L1 (see section ...

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Abstract

The invention relates to a method of controlling crystallizer tapering. The method comprises the following steps of: firstly enabling a narrow-edge cooper plate to exceed a set value during the width regulating process, and regulating along the opposite direction to eliminate the mechanical gap of the mechanism. The method provided by the invention has the advantages of effectively eliminating the tapering variance phenomenon caused by the mechanical gap, reducing steel leakage and improving the dimension precision of casting blanks.

Description

technical field [0001] The invention relates to a method for controlling cone running of a crystallizer. Background technique [0002] Continuous casting equipment, the inner wall of the crystallizer of the slab continuous casting machine is composed of two copper plates on the wide and narrow sides. The wide-faced copper plates are respectively the movable side at the front and the fixed-side copper plate at the rear, which jointly support the thickness direction of the slab and provide sufficient pressure on the narrow-faced copper plates to prevent molten steel from flowing out. The movable copper plate on the wide surface generally adopts a spring pressing mechanism, and the left and right copper plates on the narrow surface support the width direction of the slab. The position and taper of the narrow copper plate can be adjusted continuously. [0003] The widely used mechanical width adjusting device mainly adopts the combination structure of trapezoidal screw nut and...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B22D11/16
Inventor吴丙恒范竞韬刘玉春高波袁世哲周福鼎高计岩
OwnerANGANG STEEL CO LTD