Tundish coating

A tundish and coating technology, used in casting melt containers, manufacturing tools, metal processing equipment, etc., can solve the problem of low service life of the tundish, and achieve increased fluidity and thermal insulation performance, long service life, and chemical properties. stable effect

Inactive Publication Date: 2020-06-23
洪江市三兴冶金炉料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production of construction steel and other varieties with sufficient molten steel supply, especially under the condition that the nozzle can be quickly replaced online, the required tundish has the characteristics of long service life. The existing tundish is made of high-performance magnesium prefabricated parts. Raw materials such as magnesia paint and magnesia-aluminum-chrome paint are used to increase the service life. With the development of tundish metallurgy technology, the proportion of high-quality steel and special steel increases, which is caused by the variety of cast steel and the limitation of the output of the same cast steel. The service life of the tundish is not high, but the quality of the pouring steel cannot be satisfied, and it is necessary to have a good thermal insulation effect on the tundish

Method used

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  • Tundish coating

Examples

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Effect test

Embodiment 1

[0020] Composition of raw materials (parts by weight): 80 parts of medium-grade sintered magnesia, 7 parts of slaked lime, 15 parts of glass fiber, 10 parts of metal aluminum powder, 5 parts of melamine, 3 parts of rosin, 10 parts of magnesium sulfate, 20 parts of hollow ceramic microspheres and chlorine Aluminum 14 parts.

[0021] The MgO content of the mid-range sintered magnesia is above 95%.

[0022] The particle size of the mid-grade sintered magnesia is between 0.3-2mm.

Embodiment 2

[0024] Composition of raw materials (parts by weight): 100 parts of mid-range sintered magnesia, 12 parts of slaked lime, 25 parts of glass fiber, 20 parts of metal aluminum powder, 12 parts of melamine, 10 parts of rosin, 15 parts of magnesium sulfate, 30 parts of hollow ceramic microspheres and chlorine Aluminum 18 parts.

[0025] The MgO content of the mid-range sintered magnesia is above 95%.

[0026] The particle size of the mid-grade sintered magnesia is between 0.3-2mm.

Embodiment 3

[0028] Composition of raw materials (parts by weight): 85 parts of medium-grade sintered magnesia, 8 parts of slaked lime, 16 parts of glass fiber, 12 parts of metal aluminum powder, 6 parts of melamine, 4 parts of rosin, 11 parts of magnesium sulfate, 22 parts of hollow ceramic microspheres and chlorine Aluminum 15 parts.

[0029] The MgO content of the mid-range sintered magnesia is above 95%.

[0030] The particle size of the mid-grade sintered magnesia is between 0.3-2mm.

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Abstract

The invention provides a tundish coating. The tundish coating is prepared from the following raw materials in parts by weight: 80-100 parts of medium-grade sintered magnesia, 7-12 parts of slaked lime, 15-25 parts of glass fibers, 10-20 parts of aluminum powder, 5-12 parts of melamine, 3-10 parts of rosin, 10-15 parts of magnesium sulfate, 20-30 parts of hollow ceramic micro beads and 14-18 partsof aluminum chloride. The raw materials are wide in source, and the obtained tundish coating is long in service life, has a heat preservation performance and corrosion resistance, can further purify molten steel, and is good in low-temperature cohesiveness, high in adhesive force, good in effect and wide in application potential.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a tundish coating. Background technique [0002] In the production of construction steel and other varieties with sufficient molten steel supply, especially under the condition that the nozzle can be quickly replaced online, the required tundish has the characteristics of long service life. The existing tundish is made of high-performance magnesium prefabricated parts. Raw materials such as magnesia coatings and magnesium-aluminum-chrome coatings are used to increase the service life. With the development of tundish metallurgy technology, the proportion of high-quality steel and special steel increases, which is caused by the variety of cast steel and the limitation of the output of the same cast steel. The requirement for the service life of the tundish is not high, but the quality of pouring steel cannot be satisfied, and it is necessary to have a good thermal insulation eff...

Claims

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Application Information

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IPC IPC(8): C04B35/043C04B35/82B22D41/02
CPCB22D41/02C04B35/043C04B35/62222C04B35/82C04B2235/3206C04B2235/3208C04B2235/3217C04B2235/402C04B2235/77C04B2235/96C04B2235/9615
Inventor 曾辉
Owner 洪江市三兴冶金炉料有限责任公司
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