Composite extra-thick plate blank and production method thereof

A technology of extra-thick slab and production method, which is applied in the production field of composite extra-thick slab and composite extra-thick slab, can solve the problems of inability to meet the requirements of large compression ratio applications, complex equipment, long cycle, etc. Wide range, reduced requirements, improved metallographic effect

Active Publication Date: 2019-05-07
HUNAN 3T NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a composite extra-thick slab and a production method of the composite extra-thick slab, which effectively overcome the defects of complex equipment and long cycle in the existing production process, especially the inability to meet the needs of large compression ratio applications

Method used

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  • Composite extra-thick plate blank and production method thereof
  • Composite extra-thick plate blank and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Reference attached figure 1 and figure 2 , which shows the basic structure of the composite extra-thick slab provided by the embodiment of the present invention.

[0041]A composite extra-thick slab provided in this embodiment, the composite extra-thick slab includes: a hot-rolled thick slab 1 and a heated slab 2, the hot-rolled thick slab 1 and the heated slab 2 are combined together by hot rolling, heated The thickness of the slab 2 is 2-5 times the thickness of the hot-rolled slab 1, the length of the hot-rolled slab 1 is 1.5-6 times the length of the heated slab 2, and the hot-rolled slab 1 is 10mm-100mm wider than the heated slab 2.

[0042] As a preferred embodiment, the composite extra-thick slab includes: a hot-rolled thick slab 1 and a heated slab 2, and a layer of thermite 3 or / and is coated between the hot-rolled thick slab 1 and the heated slab 2 A layer of slag remover 4, hot-rolled thick plate 1 and heated slab 2 are hot-rolled together through thermite...

Embodiment 2

[0045] Reference attached figure 2 , which shows the basic structure of the composite extra-thick slab provided by the embodiment of the present invention.

[0046] A composite extra-thick slab provided in this embodiment, the composite extra-thick slab includes: two hot-rolled thick slabs 1 and one heated slab 2, and one heated slab 2 is arranged between the two hot-rolled thick slabs 1 Between the hot-rolled slab 1 and the heated slab 2, a layer of thermite 3 or / and a layer of slag remover 4 is coated, and one heated slab 2 and two hot-rolled slabs 1 are combined by hot rolling. Together.

[0047] Among them, two hot-rolled thick plates 1 and one heated slab 2 are composited together by hot rolling, the thickness of the heated slab 2 is 2 to 5 times the thickness of the hot-rolled thick plate 1, and the length of the hot-rolled thick plate 1 is the length of the heated slab. 1.5-6 times the length of 2, the hot-rolled thick plate 1 is 10mm-100mm wider than the heated slab...

Embodiment 3

[0049] A composite extra-thick slab provided in this embodiment, the composite extra-thick slab includes: a plurality of hot-rolled thick slabs 1 and a plurality of heated slabs 2, and the number of hot-rolled thick slabs 1 is one more than that of the heated slabs 2 A plurality of hot-rolled slabs 1 and a plurality of heated slabs 2 are alternately arranged, and a layer of thermite 3 or / and a layer of slag remover 4 is coated between adjacent heated slabs 2 and hot-rolled slabs 1 , a plurality of heated slabs 2 and a plurality of hot-rolled thick plates 1 are composited together by hot rolling.

[0050] Among them, a plurality of hot-rolled thick plates 1 and a plurality of heated slabs 2 are composited together by hot rolling, the thickness of the heated slabs 2 is 2 to 5 times the thickness of the hot-rolled thick plates 1, and the length of the hot-rolled thick plates 1 is the length of the heated plate. The length of the billet 2 is 1.5 to 6 times, and the hot-rolled thic...

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Abstract

The invention discloses a composite extra-thick plate blank. The composite extra-thick plate blank comprises a hot-rolling thick plate (1) and a heating plate blank (2), wherein the hot-rolling thickplate (1) is integrally composited with the heating plate blank (2) through hot rolling; the thickness of the heating plate blank (2) is 2-5 times of that of the hot-rolling thick plate (1); the length of the hot-rolling thick plate (1) is 1.5-6 times of that of the heating plate blank (2); and the width of the hot-rolling thick plate (1) is 10mm-100mm greater than that of the heating plate blank(2). According to the composite extra-thick plate blank disclosed by the invention, the hot-rolling thick plate for forming the composite steel blank can select products having appropriate materials and appropriate performances according to requirements; the selectable range is wide; during hot rolling, mainly the heating plate blanks are deformed, so that a higher compression ratio can be obtained, and preferable tissue performance is obtained.

Description

technical field [0001] The present invention relates to the technical field of special steel plate processing, more specifically, to a composite extra-thick slab and a production method for the composite extra-thick slab, aiming at rolling to produce larger thickness and better performance Special thick plate. Background technique [0002] Extra-thick plates are widely used in offshore platforms, ships, large buildings, pressure vessels, nuclear power and military industry, etc. In recent years, with the development of technology and the enlargement of industrial equipment, the demand for extra-thick steel plates The thickness and performance of extra-thick plates also put forward higher requirements. The production technology of extra-thick plates is an important symbol of the level of a country's iron and steel industry. In recent years, extra-thick plates are also products that are encouraged to be produced in the development policies of the iron and steel industry. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B45/04B21B37/74
CPCY02P70/10
Inventor 向勇黄玲曾麟芳
Owner HUNAN 3T NEW MATERIAL
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