Casting method of metal substrate cooling wall

Abstract

A technology for casting the steel-based cooling wall features that the cooling medium which is the mixture of corundum powder, iron powder and electrode powder is filled in its cooling pipeline. Said cooling medium features strong cooling action, low thermal expansibility, not adhering to pipe wall, and easy removing it.

Description

Technical field:

[0001] The technical solution to be protected by the present invention belongs to the technical field of casting technology, specifically, it is a casting method of stave with high melting point metal steel as the matrix. Background technique:

[0002] Cooling walls are widely used in steelmaking blast furnaces, launders and other equipment. Compared with the currently widely used nodular cast iron stave, the cast steel stave, as a new generation of blast furnace stave, has the advantages of high elongation, high tensile strength, high melting point, thermal shock resistance and good overall thermal conductivity. The base body of the steel stave is integrated with the cooling pipe, which eliminates the gap between the base body and the cooling pipe in the ductile iron stave, reduces thermal resistance, and thus improves the service life of the blast furnace. The base material of the cast steel stave is low-carbon alloy steel with a high melting point. Gener...

Examples

Embodiment 4-8

[0019] Get embodiment 4-8 and pour cast steel cooling stave by following casting pouring process:

[0020] The pouring process is as follows: firstly make the wooden mold, and at the same time, according to the design requirements, 20 # The low-carbon steel hot-rolled seamless steel pipe is cold-bent to form a serpentine cooling water pipe, which is sandblasted and derusted. After being assembled into a whole, the box is then filled. The cooling water pipe is filled with cooling medium. # The low-carbon steel molten steel is poured and formed, and the sand is cleaned after completion, and finally heat-treated.

[0021] In the above process, if figure 2 The open gating system 7 with bottom injection is shown in the figure. The gate of the gating system 7 is placed between the cooling water pipes 1 to prevent the high-temperature molten steel from directly rinsing the cooling water pipe 1. An insulation riser 6 is provided at the opposite end of the gate. The thermal insulati...

Technical field:

[0001] The technical solution to be protected by the present invention belongs to the technical field of casting technology, specifically, it is a casting method of stave with high melting point metal steel as the matrix. Background technique:

[0002] Cooling walls are widely used in steelmaking blast furnaces, launders and other equipment. Compared with the currently widely used nodular cast iron stave, the cast steel stave, as a new generation of blast furnace stave, has the advantages of high elongation, high tensile strength, high melting point, thermal shock resistance and good overall thermal conductivity. The base body of the steel stave is integrated with the cooling pipe, which eliminates the gap between the base body and the cooling pipe in the ductile iron stave, reduces thermal resistance, and thus improves the service life of the blast furnace. The base material of the cast steel stave is low-carbon alloy steel with a high melting point. Gener...

Examples

Embodiment 4-8

[0019] Get embodiment 4-8 and pour cast steel cooling stave by following casting pouring process:

[0020] The pouring process is as follows: firstly make the wooden mold, and at the same time, according to the design requirements, 20 # The low-carbon steel hot-rolled seamless steel pipe is cold-bent to form a serpentine cooling water pipe, which is sandblasted and derusted. After being assembled into a whole, the box is then filled. The cooling water pipe is filled with cooling medium. # The low-carbon steel molten steel is poured and formed, and the sand is cleaned after completion, and finally heat-treated.

[0021] In the above process, if figure 2 The open gating system 7 with bottom injection is shown in the figure. The gate of the gating system 7 is placed between the cooling water pipes 1 to prevent the high-temperature molten steel from directly rinsing the cooling water pipe 1. An insulation riser 6 is provided at the opposite end of the gate. The thermal insulati...

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