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Metal aluminum-zinc composite low-carbon aluminum carbon sliding plate and preparation method

A metal composite and metal aluminum technology, which is applied in metal processing equipment, casting equipment, manufacturing tools, etc., can solve the problems such as the decrease of the medium-temperature strength of the slide plate, the sliding surface is easy to rough, and the casting hole is not resistant to erosion, so as to improve the service life and improve the High-temperature mechanical properties, corrosion-inhibiting effect

Inactive Publication Date: 2012-05-09
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the metal Al-Si composite non-burning aluminum-carbon sliding plate material is from 300 ℃ to the medium temperature region of 300-700 ℃ where the metal bonding strength of Al appears. Due to the decomposition and oxidation of the resin, the medium temperature strength of the sliding plate is significantly reduced, and the strength trough occurs at about 600 ℃. , so that the sliding surface of the slide plate is easy to be roughened and broken during use, and the casting hole is not resistant to erosion, etc., which limits its application in large ladles
Therefore, the medium temperature strength and high temperature performance of the metal composite non-burning slide plate need to be further improved

Method used

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  • Metal aluminum-zinc composite low-carbon aluminum carbon sliding plate and preparation method

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Embodiment 1

[0031] A method for preparing metal-aluminum-zinc composite low-carbon aluminum-carbon sliding plate unfired bricks, the raw materials are composed of 25wt% white corundum, 36wt% dense corundum, 17wt% tabular corundum, 4.5wt% Al powder, Zn powder 0.5 wt%, activated alumina fine powder 10 wt%, graphite 1 wt%, carbon black 1 wt%, B 4 C 2 wt%, ZrB 2 2 wt%, CaB 6 1 wt%, plus 4~4.5 wt%.

[0032] 1) Firstly mix metal aluminum powder with a particle size of less than 0.044mm and a purity of more than 98.5% and metal zinc powder with a particle size of less than 0.040mm and a purity of more than 99.5%, and then mix fine corundum powder, activated alumina powder, graphite, carbon black, B 4 C. ZrB 2 and CaB 6 Mix evenly, then add the metal aluminum and zinc composite powder mixed in advance, and mix in a double-cone mixer to make a mixed powder;

[0033] 2) Take 3-0mm white corundum particles, 3-0mm dense corundum particles and 3-0mm plate-shaped corundum particles for stirrin...

Embodiment 2

[0038] A method for preparing metal-aluminum-zinc composite low-carbon aluminum-carbon sliding plate non-burning bricks. According to weight percentage, its raw materials are composed of white corundum 35wt%, dense corundum 29 wt%, tabular corundum 15 wt%, Al powder 14 wt%, Zn powder 1 wt%, activated alumina fine powder 3 wt%, graphite 2 wt%, B 4 C 1 wt%, plus 4~4.5 wt%.

[0039] 1) Firstly mix metal aluminum powder with a particle size of less than 0.044mm and a purity of more than 98.5% and metal zinc powder with a particle size of less than 0.040mm and a purity of more than 99.5%, and then mix corundum fine powder, activated alumina fine powder, graphite and B 4 C Mix evenly, then add the metal aluminum and zinc composite powder mixed in advance, and mix it into a mixed powder in a double-cone mixer;

[0040] 2) Take 3-0mm white corundum particles, 3-0mm dense corundum particles and 3-0mm plate-shaped corundum particles for stirring and mixing, and take another 4-4.5wt% res...

Embodiment 3

[0044] A method for preparing metal-aluminum-zinc composite low-carbon aluminum-carbon sliding plate non-fired bricks. According to weight percentage, its raw materials are composed of dense corundum 33 wt%, plate-shaped corundum 49wt%, Al powder 8 wt%, Zn powder 3 wt%, Activated alumina micropowder 5 wt%, B 4 C 1 wt%, ZrB 2 1 wt%, plus 4~4.5 wt%.

[0045] 1) Firstly mix metal aluminum powder with a particle size of less than 0.044mm and a purity of more than 98.5% and metal zinc powder with a particle size of less than 0.040mm and a purity of more than 99.5%, and then mix corundum fine powder, activated alumina fine powder, B 4 C and ZrB 2 Mix evenly, then add the metal aluminum and zinc composite powder mixed in advance, and mix in a double-cone mixer to make a mixed powder;

[0046] 2) Take 3-0mm white corundum particles, 3-0mm dense corundum particles and 3-0mm plate-shaped corundum particles for stirring and mixing, and take another 4-4.5wt% resin, first add 2 / 3 to m...

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Abstract

The invention discloses a metal aluminum-zinc composite low-carbon aluminum carbon sliding plate, which is prepared by the following steps of: mixing, aging and forming raw materials; performing heat treatment at the temperature of 150-300 DEG C; and then performing oil immersion, dry distillation, sand removal, hooping, grinding, shell adhesion and coating, wherein the raw materials are prepared from the following materials in percentage by weight: 78-82 percent of corundum, 3-15 percent of aluminum-zinc metal composite powder, 5-8 percent of active aluminum oxide micro powder, 2-4 percent of carbon, 0-5 percent of boron-containing additive and 4-4.5 percent of additional organic binding agent. The metal aluminum-zinc composite low-carbon aluminum carbon sliding plate has excellent thermal shock resistance performance and higher hot-state strength, so that the variation in the steel grade can be adapted better, erosion, scouring and infiltration can be suppressed, and the development towards long life and high efficiency direction of the steel and iron continuous casting can be adapted better.

Description

Technical field: [0001] The invention belongs to the technical field of refractory materials for steelmaking and continuous casting, and relates to a metal-aluminum-zinc composite low-carbon aluminum-carbon sliding plate for controlling the flow of molten steel and a preparation method thereof. Background technique: [0002] With the continuous promotion and application of new steelmaking and continuous casting technologies and the development of some types of steel, such as high-oxygen steel, calcium-treated steel, clean steel, etc., the slide plate is subjected to strong thermal shock and high-temperature molten steel erosion and wear during use. , the erosion of the environmental medium and greater temperature fluctuations, the working environment of the skateboard is even harsher. At present, aluminum-carbon and aluminum-zirconium-carbon sliding plates commonly used in continuous casting have cracks, roughening and oxidation to varying degrees, which affect the further i...

Claims

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Application Information

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IPC IPC(8): B22D41/32
Inventor 刘新红钟香崇叶方保谢娟娟张磊
Owner ZHENGZHOU UNIV
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