Steel plate ingot casting device and method for producing ultra-thick steel plate cast ingot with same

A technology for casting ingots and steel plates, which is applied in the field of steel plate ingot casting devices, can solve the problems of shrinkage cavities, segregation of microstructure and components, coarse crystal grains, and high mold cost, and achieves large performance margin, high microstructure and grain size, and solidification time. the effect of shortening

Active Publication Date: 2013-07-24
NANYANG HANYE SPECIAL STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ingot mold is generally a cast iron integral mold. The main defects of this mold are: 1) In the middle and late stages of the molten steel condensing in the mold, the mold absorbs a lot of heat and rises to a high temperature, and the heat dissipation of the mold mainly Relying on outward radiation, the speed of heat dissipation is very slow, resulting in a gradual decrease in the condensation rate of molten steel; 2) The steel ingot gradually shrinks as the temperature decreases during the entire condensation process, and an air gap is formed between the steel ingot and the inner wall of the mold. The existence of the steel ingot reduces the thermal conductivity between the steel ingot and the casting mold, and the crystallization speed of the steel ingot is greatly affected, resulting in coarse grains in the core

Method used

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  • Steel plate ingot casting device and method for producing ultra-thick steel plate cast ingot with same
  • Steel plate ingot casting device and method for producing ultra-thick steel plate cast ingot with same
  • Steel plate ingot casting device and method for producing ultra-thick steel plate cast ingot with same

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Embodiment Construction

[0025] Such as figure 1Shown: the steel plate ingot casting device of the present invention comprises a base 12, a fixed frame 4 and an ingot mold, wherein the fixed frame 4 is fixedly connected with the base 12, and the ingot mold is located in the fixed frame 4, and the ingot mold is formed from the front , rear, left and right two pairs of side templates 1,2 and bottom template 13 constitute. Both the side templates 1, 2 and the bottom template 13 are made of copper plate with high thermal conductivity, which is beneficial to speed up the condensation rate of the steel ingot and prevent the segregation of the internal structure of the steel ingot. Among the two pairs of side templates 1 and 2, one pair of side templates 2 is located in the opening of the other pair of side templates 1 and can be moved and adjusted. Through adjustment, a set of side templates 1 and 2 can produce ingots of various specifications. Cooling water tanks 3, 15 are provided outside the side templa...

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Abstract

The invention discloses a steel plate ingot casting device, which comprises a pedestal, a fixed framework and an ingot mold, wherein the fixed framework is fixedly connected with the pedestal; the ingot mold is positioned in the fixed framework and consists of two pairs of side templates, i.e., front, rear, left and right side templates, and a bottom template; the outer sides of the side templates and the bottom template are respectively provided with a cooling water box; the side templates are provided with squeezing mechanisms; the bottom template is provided with a lifting mechanism; the side templates and the bottom template are all copper plate products; and the bottom template is provided with a runner port. According to the steel plate ingot casting device, deformation under cold and hot intensity stress can be avoided, and a shrinkage hole is avoided; since the solidification time is greatly shortened, the segregation in a steel ingot can be obviously relieved, thereby greatly improving the internal quality and the performance of a produced ultra-thick plate; and meanwhile, the steel plate ingot casting device has the advantages of freely adjustable ingot mold size, long service life of the ingot mold and the like.

Description

technical field [0001] The invention relates to the technical field of steel production, in particular to a steel plate ingot casting device and a method for producing extra-thick steel plate ingot casting with the device. Background technique [0002] With the continuous improvement of the level of modern industrialization and the intensification of global economic integration, the requirements for the variety and quality of steel products in the international market are also continuously increasing. The amount of high-grade extra-thick steel used in industries such as large ships and offshore oil platform legs is increasing. In the known technology, the steel plate for large-scale equipment is usually first casted by using a steel ingot mold, and then the steel plate is rolled and formed by a large-scale rolling equipment. The traditional ingot mold is generally a cast iron integral mold. The main defects of this mold are: 1) In the middle and late stages of the molten st...

Claims

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Application Information

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IPC IPC(8): B22D7/00B22D7/06B22D7/12B22D9/00
Inventor 唐郑磊朱书成许少普陆岳璋高照海李忠波杨阳康文举赵迪
Owner NANYANG HANYE SPECIAL STEEL CO LTD
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