Composite copper bush and preparation method thereof

A technology of copper sleeves and inner copper sleeves, which is applied in the direction of chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of affecting the stability of the amorphous forming process, small contact area, and reduced thermal conductivity. Increase the effective heat dissipation area, high heat exchange capacity, and prolong the service life

Active Publication Date: 2014-07-09
GUANGZHOU QIDA MATERIAL & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The thickness of the existing copper sleeve is 30mm to 50mm, as attached figure 1 and 2 As shown, when the molten steel 2 is in contact with the cooling copper jacket 1, the heat of the molten steel 2 will be concentrated and directed to the cooling water 3 inside the cooling copper jacket 1 along the vertical direction. The contact area of ​​water 3 is small, which easily vaporizes cooling water 3, and the thermal conductivity of air is equivalent to about one-twentieth of that of water, resulting in a significant decrease in the actual heat transfer efficiency between cooling copper jacket 1 and cooling water 3 , affecting the stability of the amorphous forming process

Method used

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  • Composite copper bush and preparation method thereof
  • Composite copper bush and preparation method thereof
  • Composite copper bush and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0032] An embodiment of the composite copper sleeve of the present invention, as attached image 3 As shown, the composite copper sleeve described in this embodiment includes an outer copper sleeve 10 closely fitted together, a lateral high thermal conductivity material layer 20 and an inner copper sleeve 30 from outside to inside, and the thickness of the outer copper sleeve 10 is 5-30 mm, the thickness of the lateral high thermal conductivity material layer 20 is 0.1-1.5 mm, the thickness of the inner copper sleeve 30 is 5-15 mm, and those skilled in the art can select an outer copper sleeve with a suitable thickness according to actual needs, Lateral layers of high thermal conductivity material and inner copper sleeve.

[0033] as attached Figure 4 As shown, the composite copper sleeve described in this embodiment is prepared by the following method:

[0034] (1) Preparation of the outer copper sheath: using chromium-zirconium copper to prepare the inner and outer smooth...

Embodiment 2

[0042] Cooling effect experiment of composite copper sleeve of the present invention

[0043] Use a 100kg level amorphous strip machine to make strips, the composition grade is 1k101, the temperature of the molten steel is controlled at 1000-1450°C, and the existing cooling copper sleeve and the composite copper sleeve of the present invention are respectively used for cooling. The experimental results are shown in Table 1. :

[0044] Table 1 Comparison of cooling effects

[0045] project

[0046] It can be seen from Table 1 that the composite copper sleeve of the present invention can effectively improve the cooling efficiency, improve the performance of amorphous and nanocrystalline products, and the product pass rate of amorphous and nanocrystalline belt making equipment.

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Abstract

The invention discloses a composite copper bush for cooling. The composite copper bush comprises an outer copper bush, a horizontal high-heat-conductivity material layer and an inner copper bush which are laminated together closely and sequentially from outside to inside, the outer copper bush is prepared from chromium zirconium copper, and the outer copper bush is prepared from oxygen-free copper. The composite copper bush has high cooling efficiency, can improve performance of amorphous and nanocrystalline products, and can increase product percent of pass of amorphous and nanocrystalline belting equipment. The invention further discloses a preparation method of the composite copper bush.

Description

technical field [0001] The invention relates to a cooling copper sleeve for copper and a preparation method thereof, in particular to a copper sleeve for cooling in the preparation of amorphous and nanocrystalline strips and a preparation method thereof. Background technique [0002] The cooling rate of the existing copper cooling copper jacket is limited by the thermal conductivity of the copper alloy, and its cooling effect can still meet the requirements in the usual production process of amorphous and nanocrystalline strips. However, for some amorphous and nanocrystalline products with higher requirements, the cooling effect of the existing copper cooling jacket cannot meet the demand. Mainly because: [0003] 1. The thickness of the existing copper sleeve is 30mm to 50mm, as attached figure 1 and 2 As shown, when the molten steel 2 is in contact with the cooling copper jacket 1, the heat of the molten steel 2 will be concentrated and directed to the cooling water 3 i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B32B15/01B32B1/08
Inventor 王志远
Owner GUANGZHOU QIDA MATERIAL & TECH
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