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Sliding plate brick for casting high manganese steel

A technology of sliding bricks and high manganese steel, applied in the field of casting equipment, can solve the problems of affecting production efficiency and cost, shortening, generally in 1-2 times, and achieve long service life, good thermal shock resistance and slag erosion performance Effect

Inactive Publication Date: 2014-07-16
河南省伯马股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the smelting of high manganese steel, the furnace temperature is as high as 1580-1600 ° C, and deoxidation, dehydrogenation, denitrification and sedation are carried out so that oxides and inclusions have sufficient time to float up and form steel slag with complex components. In the continuous casting operation, it is a key functional component to control the flow and velocity of molten steel. It must withstand the long-term strong thermal shock of high-temperature molten steel and the erosion of molten slag, which will shorten the life of the sliding brick, generally 1-2 times, seriously Affects productivity and cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] 1. Put TiB 2 And AlMg alloy is introduced as a high-efficiency composite antioxidant into the production of skateboards, and black powder TiB is selected 2 And silver gray AlMg alloy, TiB 2 The content is ≥99%, the AlMg content is ≥98%, and the fineness is less than or equal to 88 microns.

[0010] 2. TiB 2 It is mixed with AlMg alloy in a mixer at a mass ratio of 1:6 to make a high-efficiency composite antioxidant for use.

[0011] 3. The base material of the skateboard is Al 2 O 3 ≥98.5% of tabular corundum particles, the specification is 2-1 mm; select Al 2 O 3 Fused spinel with a content of 72-77% and a MgO content of 22-27%. The specifications are particles ≤1 mm, fine powders less than or equal to 28 microns, and fine powders less than or equal to 10 microns; select Al≥98% , Specification is metal aluminum powder less than or equal to 90 microns; Use carbon black with C≥98.5% and specification less than or equal to 10 microns.

[0012] 4. Prepare 12 parts of fused spi...

Embodiment 2

[0015] 1. Put TiB 2 And AlMg alloy is introduced as a high-efficiency composite antioxidant into the production of skateboards, and black powder TiB is selected 2 And silver gray AlMg alloy, TiB 2 The content is ≥99%, the AlMg content is ≥98%, and the fineness is less than or equal to 88 microns.

[0016] 2. TiB 2 It is mixed with AlMg alloy in a mixer at a mass ratio of 1:6 to make a high-efficiency composite antioxidant for use.

[0017] 3. The base material of the skateboard is Al 2 O 3 ≥98.5% of tabular corundum particles, the specification is 2-1 mm; select Al 2 O 3 Fused spinel with a content of 72-77% and a MgO content of 22-27%. The specifications are particles ≤1 mm, fine powders less than or equal to 28 microns, and fine powders less than or equal to 10 microns; select Al≥98% , Specification is metal aluminum powder less than or equal to 90 microns; Use carbon black with C≥98.5% and specification less than or equal to 10 microns.

[0018] 4. Prepare 13 parts of fused spi...

Embodiment 3

[0021] 1. Put TiB 2 And AlMg alloy is introduced as a high-efficiency composite antioxidant into the production of skateboards, and black powder TiB is selected 2 And silver gray AlMg alloy, TiB 2 The content is ≥99%, the AlMg content is ≥98%, and the fineness is less than or equal to 88 microns.

[0022] 2. TiB 2 It is mixed with AlMg alloy in a mixer at a mass ratio of 1:6 to make a high-efficiency composite antioxidant for use.

[0023] 3. The base material of the skateboard is Al 2 O 3 ≥98.5% of tabular corundum particles, the specification is 2-1 mm; select Al 2 O 3 Fused spinel with a content of 72-77% and a MgO content of 22-27%. The specifications are particles ≤1 mm, fine powders less than or equal to 28 microns, and fine powders less than or equal to 10 microns; select Al≥98% , Specification is metal aluminum powder less than or equal to 90 microns; Use carbon black with C≥98.5% and specification less than or equal to 10 microns.

[0024] 4. Prepare 14 parts of fused spi...

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Abstract

The invention discloses a sliding plate brick for casting high manganese steel. The brick comprises tabular corundum, metal aluminium powder and carbon black; the body of the sliding plate brick further comprises a TiB2 and AlMg alloy composite antioxidant and electric melting spinel, wherein the weight ratio of TiB2 to AlMg in the TiB2 and AlMg alloy composite antioxidant is 1:6; the composite antioxidant accounts for 7-8 parts by weight; the electric melting spinel is added through three modes such as particles, fine powder and micro powder, wherein the particles with the specification of no more than 1 millimeter account for 39-42 parts by weight, the fine powder with the specification of being less than or equal to 28 micrometers accounts for 12-15 parts by weight, and the micro powder with the specification of being less than or equal to 10 micrometers accounts for 4-6 parts by weight; and the tabular corundum accounts for 23-26 parts by weight, the metal aluminium powder accounts for 5-8 parts by weight, and the carbon black accounts for 1-2 parts by weight. Compared with the prior art, the brick has the obvious advantages of good heat impact resistance and slag erosiveness and long service life.

Description

Technical field: [0001] The invention relates to a casting equipment, in particular to a casting high-manganese steel slide brick. Background technique: [0002] High manganese steel is widely used in quarrying, mining, mining, coal, casting and other fields due to its excellent wear resistance. However, in the smelting of high manganese steel, the furnace temperature is as high as 1580-1600 ℃, and deoxidation, dehydrogenation, denitrification and sedation are carried out to allow sufficient time for oxides and inclusions to float up, forming steel slag with more complex composition. In continuous casting operations, it is a key functional component that controls the flow and velocity of molten steel. It must withstand the long-term and strong thermal shock of high-temperature molten steel and the erosion of molten slag, resulting in the shortening of the life of the sliding block, generally 1-2 times, serious Affect production efficiency and cost. Therefore, the development of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 王长春吕培中韩红强王大军牛智旺陈花朵
Owner 河南省伯马股份有限公司
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