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Titanium-added metal bonded slide plate and production method thereof

A production method and metal technology, applied in metal processing equipment, casting melt containers, manufacturing tools, etc., can solve problems such as submerged nozzle blockage, achieve the effects of prolonging service life, scientific formula, and reducing content

Active Publication Date: 2015-10-28
HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing metal-bonded slide plate introduces a large amount of metal aluminum powder into the material. These metal aluminum powders are easy to combine with oxygen in molten steel to form alumina during the pouring process. Excessive alumina will easily cause nodules and blockage of the submerged nozzle. The phenomenon is especially obvious in aluminum killed steel
The skateboard refractory needs to be improved in terms of strength, thermal shock stability and wear resistance, and cannot meet the requirements of the rapid development of the modern steel industry. Skateboard products with good extensibility

Method used

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  • Titanium-added metal bonded slide plate and production method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 : A metal bonded slide plate with titanium added, the raw material composition by weight percentage is: 65% corundum particles, 10% corundum fine powder, 5% activated alumina powder, 6% silicon carbide fine powder, 5% Metal aluminum powder, 3% metal silicon powder, 3% metal titanium powder, 2% carbon black, 1% boron carbide, the total amount of the above raw materials is 100%, plus 4.2% thermosetting phenolic resin.

[0024] The corundum particles include 10% of corundum with 2mm2 o 3 Content ≥ 99.0%.

[0025] Corundum fine powder particle size ≤ 0.045mm, where Al 2 o 3 Content ≥ 99.0%.

[0026] Production method: Weigh each raw material according to the ratio, and add the powder into the conical mixer, including corundum fine powder, activated alumina powder, silicon carbide fine powder, metal silicon powder, metal aluminum powder, metal titanium powder, carbon Black and boron carbide, mixed evenly to obtain mixed powder, bagged for later use; put the r...

Embodiment 2

[0028] Example 2 : A metal bonded slide plate with titanium added, the raw material composition is shown in Table 1.

[0029] 65% corundum particles in raw materials: including 5% corundum with 2mm2 o 3 Content ≥ 99.0%.

[0030] Corundum fine powder particle size ≤ 0.045mm, where Al 2 o 3 Content ≥ 99.0%; particle size of activated alumina powder ≤ 0.045mm, of which Al 2 o 3 Content≥99.7%, Na 2 O content≤0.11%.

[0031] Silicon carbide fine powder particle size ≤0.045mm, of which SiC content ≥96.0%; metal aluminum powder includes two types of aluminum powder: 0mm<particle size≤0.088mm and 0.088mm<particle size≤0.28mm, the weight ratio of the two is 3 :1~2:1, wherein the metal aluminum content is ≥99.0%.

[0032] Metal silicon powder includes two types of metal silicon powder with a particle size of 0.02mm<≤0.045mm and a particle size of ≤0.02mm. The weight ratio of the two is 1:2, and the metal silicon content is ≥99.0%.

[0033] Metal titanium powder particle size ≤...

Embodiment 3

[0036] Example 3: A metal bonded slide plate with titanium added, the raw material composition is shown in Table 1.

[0037] 65% corundum particles in the raw material: including 15% of corundum with 2mm2 o 3 Content ≥ 99.0%. Other requirements and production methods are the same as Example 1.

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Abstract

The invention relates to a metal bonded sliding plate with titanium added and a production method thereof. The raw materials are corundum particles, corundum fine powder, activated alumina powder, silicon carbide fine powder, metal aluminum powder, metal silicon powder, metal titanium powder, carbon black and Boron carbide, plus phenolic resin. During production, put the powder into the mixer and mix evenly; then add granular material and phenolic resin, mix evenly, and press to obtain a blank; dry the blank and treat it at medium temperature for 10-14 hours, and then cool naturally to obtain a metal-bonded slide plate with titanium added . The compressive strength of the product of the present invention is 140-260MPa, and the high-temperature flexural strength is 30-35MPa; by introducing metal titanium to replace part of metal aluminum, the content of alumina in molten steel can be reduced, and the transformation of aluminum oxide into Calcium aluminate may cause nodulation and breakage of the submerged nozzle, prolonging its service life. The production method of the invention is simple and low in cost, and is beneficial to popularization and application.

Description

technical field [0001] The invention relates to a slide brick in a ladle slide nozzle series in steelmaking production, in particular to a metal-bonded slide plate with titanium added and a production method thereof. Background technique [0002] Since the 1970s, sliding nozzles have become one of the important technological innovations in the rapid development of the steel industry. Now most of the ladles and tundishes at home and abroad are equipped with sliding nozzle systems. The slide plate is a key component of the sliding nozzle, an important part that directly controls the molten steel and determines the function of the sliding nozzle. During use, this part needs to withstand the chemical erosion and physical erosion of the high-temperature molten steel for a long time, coupled with intense and transient thermal shock And mechanical wear, the service conditions are relatively harsh. At the same time, in order to realize the free opening and closing of the steel flow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/32C04B35/66C22C29/12
Inventor 徐跃庆李宏宇张理俊梁保青张莹徐光雷
Owner HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD