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Method for producing composite material by adopting continuous casting

A composite material and continuous casting technology, applied in the field of metallurgy, can solve the problems of single raw material, casting billet defects, uncompetitive light weight, etc., and achieve the effect of increasing strength and tensile strength and reducing weight

Pending Publication Date: 2022-03-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional continuous casting process uses a single raw material, and there are still defects in the casting billet, which will greatly affect the quality and various properties of the produced rigid parts, and the steel itself is thick and heavy, and it is not competitive in terms of weight reduction.

Method used

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  • Method for producing composite material by adopting continuous casting
  • Method for producing composite material by adopting continuous casting
  • Method for producing composite material by adopting continuous casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as Figures 1 to 3 Shown, this adopts continuous casting to produce the method for composite material, it comprises the following specific steps:

[0022] Place carbon nanotubes as the core material in the center of the crystallizer and connect and fix them with the traction device. Pour molten steel with a temperature of 1600°C in the tundish into the pouring cavity of the mold. The molten steel contacts the core material of carbon nanotubes, and the The surface of the material is cooled and solidified to form a clad steel layer. The ratio of the inner diameter of the pouring cavity of the crystallizer to the inner diameter of the carbon nanotube core material is 2:1. The traction device is started to move the compounded billet from the crystallizer at a speed of 100mm / min. Pull out from below; when the shell thickness at the outlet of the lower end of the crystallizer reaches 50mm, start the crystallizer vibration device (the amplitude is 3mm±12mm, the vibration ...

Embodiment 2

[0025] Such as Figures 1 to 3 Shown, this adopts continuous casting to produce the method for composite material, it comprises the following specific steps:

[0026] Place the carbon nanotubes as the core material in the center of the mold and connect and fix it with the traction device. Pour molten steel with a temperature of 1630°C in the tundish into the pouring cavity of the mold. The molten steel contacts the carbon nanotube core material, and the The surface of the material is cooled and solidified to form a clad steel layer. The ratio of the inner diameter of the pouring cavity of the crystallizer to the inner diameter of the carbon nanotube core material is 2.3:1. The traction device is started to move the compounded billet from the crystallizer at a speed of 130mm / min. Pull out from below; when the shell thickness at the outlet of the lower end of the crystallizer reaches 60mm, start the crystallizer vibration device (the amplitude is 6mm±12mm, the vibration frequenc...

Embodiment 3

[0029] Such as Figures 1 to 3 Shown, this adopts continuous casting to produce the method for composite material, it comprises the following specific steps:

[0030] Place carbon nanotubes as the core material in the center of the crystallizer and connect and fix them with the traction device. Pour molten steel with a temperature of 1650°C in the tundish into the pouring cavity of the mold. The molten steel contacts the core material of carbon nanotubes, and the The surface of the material is cooled and solidified to form a clad steel layer. The ratio of the inner diameter of the pouring cavity of the crystallizer to the inner diameter of the carbon nanotube core material is 2.5:1. The traction device is started to move the compounded billet from the crystallizer at a speed of 150mm / min. Pull out from below; when the shell thickness at the outlet of the lower end of the crystallizer reaches 70mm, start the crystallizer vibration device (the amplitude is 9mm±12mm, the vibratio...

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Abstract

The invention relates to a method for producing a composite material through continuous casting, and belongs to the technical field of metallurgy. Placing a carbon nanotube as a core material in the center of a crystallizer and fixedly connecting the carbon nanotube with a traction device, pouring molten steel into a pouring inner cavity of the crystallizer, enabling the molten steel to be in contact with the carbon nanotube core material, cooling and solidifying on the surface of the core material to form a coated steel layer, and simultaneously starting the traction device to pull out a compounded blank from the lower part of the crystallizer; when the thickness of a blank shell at an outlet in the lower end of the crystallizer reaches 50-70 mm, a crystallizer vibration device is started, a casting blank with a liquid core enters an arc-shaped guide section composed of a plurality of clamping rollers, the casting blank descends at the arc-shaped guide section and is subjected to secondary cooling, and the casting blank is forcibly cooled through atomized water sprayed out of nozzles arranged regularly and continues to be solidified in the secondary cooling process; and after the dummy bar is discharged from the drawing straightener, the dummy bar is separated from the casting blank, blank discharging is completed, and the composite material is obtained through production. The weight of the bar is finally reduced, and the strength and the tensile strength are improved.

Description

technical field [0001] The invention relates to a method for producing composite materials by continuous casting, which belongs to the technical field of metallurgy. Background technique [0002] Judging from the current domestic market, all industries have improved significantly, and economic development has gradually become more formal. Especially the iron and steel industry, as an indispensable and important part of national infrastructure projects, plays an irreplaceable role in transportation, railway, construction, industry, machinery manufacturing and other industries, and its overall development is on the rise. [0003] The overall development of the steel industry is on the rise, and there will be twists and turns in the development process. With the acceleration of economic globalization, the iron and steel industry, as a large category, is bound to be in line with international standards and synchronization. In global competition, it is affected by domestic marke...

Claims

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Application Information

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IPC IPC(8): B22D11/00B22D11/08B22D11/12
CPCB22D11/007B22D11/08B22D11/1226
Inventor 周晓雷晏昊立王云鹏方浩宇张闯张少博陈鹏施哲张桂芳杨晓源阴树标黄帮福漆鑫
Owner KUNMING UNIV OF SCI & TECH