Non-drying carbon-free long runner

A no-bake, long nozzle technology, used in casting melt containers, manufacturing tools, metal processing equipment, etc. Excellent anti-scour performance and the effect of reducing production costs

Inactive Publication Date: 2004-09-22
DONGFANG JUYE HIGHER CERAMIC ANSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the steel pouring process, the quartz long nozzle has poor erosion and erosion resistance, and the carbon-free composite aluminum-carbon long nozzle on the inner wall has a strong erosion resistance, but the carbon-free layer on the inner wall has poor resistance to molten steel erosion. , will increase the carbon content in molten steel, so the service life of these two types of carbon-free shrouds is shorter

Method used

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  • Non-drying carbon-free long runner
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: The components of the body material of the non-baking and carbon-free shroud are:

[0015] Phosphor flake graphite 31Kg

[0016] Fused white corundum 33Kg

[0017] Fused Silica 18Kg

[0018] Fused Zirconia Mullite 10Kg

[0019] Silicon carbide 6Kg

[0020] Metal silicon powder 2Kg

[0021] Each component of lining 1 material is:

[0022] Magnesium aluminum spinel 74Kg

[0023] Fused Zirconia Mullite 13Kg

[0024] Lightly burned α-Al 2 o 3 9Kg

[0025] Metal aluminum powder 4Kg

[0026] Each component of lining 2 material is:

[0027] Fused Silica 46Kg

[0028] Fused white corundum 17Kg

[0029] Zirconia hollow ball 29Kg

[0030] Lightly burned α-Al 2 o 3 8Kg

[0031] In order to manufacture no-bake carbon-free shroud, mix the components of the above main material evenly, add 9Kg of phenolic resin bi...

Embodiment 2

[0032] Example 2: The components of the material of the non-baking and carbon-free shroud body are:

[0033] Phosphor flake graphite 29Kg

[0034] Fused white corundum 33Kg

[0035] Fused silica 20Kg

[0036] Fused Zirconia Mullite 10Kg

[0037] Silicon carbide 6Kg

[0038] Metal silicon powder 2Kg

[0039] Each component of lining 1 material is:

[0040] Magnesium aluminum spinel 76Kg

[0041] Fused Zirconia Mullite 11Kg

[0042] Lightly burned α-Al 2 o 3 9Kg

[0043] Metal aluminum powder 4Kg

[0044] Each component of lining 2 material is:

[0045] Fused Silica 45Kg

[0046] Fused white corundum 17Kg

[0047] Zirconia hollow ball 30Kg

[0048] Lightly burned α-Al 2 o 3 8Kg

[0049] Its preparation method is with embodiment 1.

Embodiment 3

[0050] Example 3: The components of the material of the non-baking and carbon-free shroud body are:

[0051] Phosphor flake graphite 30Kg

[0052] Fused white corundum 33Kg

[0053] Fused Silica 19Kg

[0054] Fused Zirconia Mullite 10Kg

[0055] Silicon carbide 6Kg

[0056] Metal silicon powder 2Kg

[0057] Each component of lining 1 material is:

[0058] Magnesium aluminum spinel 75Kg

[0059] Fused Zirconia Mullite 12Kg

[0060] Lightly burned α-Al 2 o 3 9Kg

[0061] Metal aluminum powder 4Kg

[0062] Each component of lining 2 material is:

[0063] Fused Silica 47Kg

[0064] Fused white corundum 17Kg

[0065] Zirconia hollow ball 28Kg

[0066] Lightly burned α-Al 2 o 3 8Kg

[0067] Its preparation method is with embodiment 1.

[0068] The performance of the above products is shown in Table 1

[0069] Example ...

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Abstract

A non-carbon long sprue without baking is composed of the main body made of flake graphite, white electro-corundum, fused quartz, electrofused zirconium mullite, silicon carbide and metallic silicon powder, the liner A made of electrofused zirconium mullite, electrofused Ag-Al spinel, light-burnet alumina, and metallic aluminium powder, and the linear B made of fused quartz, white electro-corundum, hollow balls of zirconium oxide and light-burnt alumine. Its advantages are high resistance to heat shock, flushing and corrosion, and long service life.

Description

technical field [0001] The invention relates to a novel inorganic non-metal refractory material and its products, in particular to a baking-free and carbon-free shroud used in continuous steel casting production and a manufacturing method. Background technique [0002] At present, the bake-free carbon-free shrouds used in continuous casting of ultra-low carbon steel and high-oxygen steel are divided into two types: quartz-based and inner-wall carbon-free composite aluminum-carbon shrouds. During the steel pouring process, the quartz long nozzle has poor erosion and erosion resistance, and the carbon-free composite aluminum-carbon long nozzle on the inner wall has a strong erosion resistance, but the carbon-free layer on the inner wall has poor resistance to molten steel erosion. , will increase the carbon content in molten steel, so the service life of these two types of carbon-free shrouds is shorter. [0003] In order to overcome the disadvantages in the prior art, the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/10B22D41/54
Inventor 刘大为朱万彤田海玉李涛
Owner DONGFANG JUYE HIGHER CERAMIC ANSHAN CITY
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