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Blank drawing technology for crystallizer of conticaster and special crystallizer structure

A mold and continuous casting machine technology, applied in the field of structural improvement of special molds, can solve problems such as billet shell cracking, increased billet drawing resistance, and casting billet stuck in the mold, etc.

Inactive Publication Date: 2005-07-06
张祝得
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the reverse taper is 0.5-1.0%. A mold with a large reverse taper will generate more heat, but the resistance of casting will increase; if the reverse taper is too large, the billet shell will be cracked (transverse cracks appear), and in severe cases, the cast billets get stuck in the crystallizer

Method used

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  • Blank drawing technology for crystallizer of conticaster and special crystallizer structure
  • Blank drawing technology for crystallizer of conticaster and special crystallizer structure
  • Blank drawing technology for crystallizer of conticaster and special crystallizer structure

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Embodiment Construction

[0021] Embodiments of the present invention are described in further detail below in conjunction with accompanying drawings:

[0022] figure 1 As an implementation mode of the present invention, figure 2 The structure of the crystallizer of the present invention is shown. The structure of the crystallizer is composed of two narrow-side copper plates 1 and two wide-side copper plates 2, and four servo hydraulic cylinders 3 act on the outer wall of the wide-side copper plates 2 to lock and press them into a combined slab crystallizer. The structure of the two narrow-side copper plates 1 in this embodiment can be as follows Figure 9 , 10 The structure of the narrow side copper plate elastomer shown in , 11 has a cavity 11 that is filled with cooling water in its body, and the cavity passes through the cooling water inlet 13 and the water outlet 14, and the cooling water with pulsating pressure is input to the cavity . There is also a cavity 12 filled with cooling water ins...

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PUM

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Abstract

The invention provides a billet drawing process for a mold of a continuous casting machine and a special mold structure thereof. The process uses a mold that can produce sufficient elastic deformation under the action of external force. When the billet slides down the mold, the broad-sided copper plate of the mold will undergo a slight lateral movement outward; when the billet slides upward in the mold At the same time, the broad-side copper plate of the mold produces a slight lateral shift inward. In this way, the crystallizer can have a larger reverse taper, so that the crystallizer has a larger thermal conductivity, thereby improving the drawing speed, preventing drawing leakage, and avoiding quality problems such as bridging and segregation. By adopting the special crystallizer structure and the drawing process of the present invention, the drawing speed can be increased by 10%, which has good economic benefits.

Description

technical field [0001] The invention relates to a steel continuous casting production process and the structural improvement of a special crystallizer applying the process. Background technique [0002] Continuous casting is the main production mode of modern steel production. The continuous casting machine is the special equipment for realizing this mode. The mold is the core component of the continuous casting machine. The performance of the mold determines the output of the casting machine, the quality of the billet, and the casting steel type. [0003] The slab mold used in the existing continuous casting machine is a combined mold, its structure is composed of two wide-side copper plates and two narrow-side copper plates, and its geometric structure is unchanged during the stable casting process. Yes, the crystallizer only adjusts the position of the narrow side copper plate when changing the width of the slab. After adjusting the width and taper, the wide side copper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/04B22D11/057B22D11/059
Inventor 张祝得
Owner 张祝得
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