Coated wire with flexible coating

A technology of flexible coating and cored wire, applied in the field of flexible coating cored wire and cored wire, can solve the problems of low effective utilization rate of treatment package, large amount of magnesium and air combustion, air pollution, etc., to solve the problem of cleanliness Production problems, reducing the amount of magnesium added, and improving the efficiency

Inactive Publication Date: 2006-03-01
包头文鑫实业有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] 1) When the molten iron is spheroidized, the molten iron is in a turbulent state, and the treatment bag needs to leave enough space for the boiling of the molten iron, generally within the range of 350-500mm, and the effective utilization rate of the treatment bag is low;
[0004] 2) The effective rate of magnesium in molten iron (the percentage of the ra

Method used

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  • Coated wire with flexible coating

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Embodiment Construction

[0023] With reference to accompanying drawing, the present invention comprises steel belt 1, the powder material layer 2 that is wrapped in the steel belt 1 and the core wire 4 that is located in the powder material layer 2, is coated with one deck by asphalt as binding agent at the surface of core wire 4 flexible coating3.

[0024] The following is a comparison with application examples:

[0025] 1. Comparing flexible coated cored wire with uncoated magnesium cored wire, wire cored wire and bunched magnesium cored wire, the comparative advantage in terms of magnesium efficiency:

[0026] The weight of the treated molten iron: 1000kg / bag, the height of the molten iron: 650mm, the temperature of the treated molten iron: 1460°C, and the sulfur content of the original molten iron: 0.025%.

[0027]

Types of cored wire

Unit length includes

Magnesium content g / m

Core diameter

mm

Feeding speed

m / min

Unit time plus

Magn...

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PUM

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Abstract

The flexible coated wire includes outer coating of steel belt, powder material layer comprising alloy powder, metal powder or non-metal powder coated inside the outer coating, and core wire inside the powder material layer, and has one flexible coating with asphalt as adhesive coated on the surface of the core wire. The flexible coated wire features that after outer coating fails, the flexible coating and the sintered powder material layer will further protect the magnesium core wire and the magnesium core wire may be further inserted into the bottom of molten iron ladle to add magnesium in controlled amount and raised efficiency. In addition, the present invention makes it possible to realize the spheroidization and inoculation of molten iron with only one coated wire in low apparatus cost and realize clean production and high efficiency application

Description

technical field [0001] The invention relates to a flexible coated core wire cored wire. Background technique [0002] The known cored wire is composed of steel strip and powder wrapped in the steel strip, and then it is fed into the bottom of the ladle by a wire feeder to react with molten iron or molten steel, so as to increase the concentration of the fed elements in the molten iron. Or for the purpose of utilization or absorption of molten steel. When the powder layer of the fed cored wire contains magnesium, such as feeding a cored wire containing magnesium powder or magnesium alloy powder in molten iron for desulfurization and spheroidization of molten iron, the vaporization point of magnesium is only 1080C, and the temperature of the molten iron passing through is as high as 1450-1550°C, which is much higher than the vaporization temperature of magnesium. Therefore, during the process of passing through the molten iron, the magnesium powder...

Claims

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Application Information

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IPC IPC(8): C21C7/064C22C33/10
Inventor 张恒立王建
Owner 包头文鑫实业有限公司
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