A kind of titanium-magnesium-aluminum spinel-brown corundum composite sliding plate and production method thereof

Abstract

The invention specifically relates to a titanium-magnesium-aluminum spinel-brown corundum composite sliding plate and a production method thereof. According to the weight percentage, the raw materials are composed of: 35-65% of brown corundum, 4-8% of activated alumina fine powder, 10% ~38% of magnesium-aluminum spinel, 5-15% of metal titanium, 5-10% of metal aluminum, and 3-5% of phenolic resin in total raw materials are used as binders. During production, various raw materials are weighed according to the proportions, and after mixing evenly, the mud is obtained by kneading, and then machine-pressed to form, dried at 180 ° C ~ 250 ° C for 24 ~ 48 hours, and then prepared by hooping, grinding and coating. Product of the invention. The method does not require high-temperature sintering, does not need to impregnate asphalt, is energy-saving and environmentally friendly, and has low production cost. 3.20g / cm 3 , Normal temperature compressive strength 120 ~ 200MPa, high temperature flexural strength (buried carbon 1450 ℃ × 0.5h) 25 ~ 60MPa.

Description

technical field [0001] The invention relates to a Ti-magnesium-aluminum spinel-brown corundum composite sliding plate and a production method thereof, belonging to the technical field of refractory materials. Background technique [0002] At present, the mainstream products of skateboard bricks are aluminum-carbon and aluminum-zirconium-carbon skateboards, which are divided into two preparation processes: non-burning and high-temperature firing. Because of the pre-reaction, the sliding brick has better performance and is suitable for large-scale ladle, converter, etc., and is also the preferred choice for smelting various types of steel. high. The traditional skateboard bricks are all carbon-containing refractory materials. There is a problem of carbon oxidation during the use of skateboard bricks. Carbon oxidation causes the structure of the skateboard to become loose, so that oxides such as iron, manganese, and calcium penetrate into the substrate of the skateboard and re...

AI Technical Summary

Problems solved by technology

[0002] At present, the mainstream products of sliding bricks are aluminum carbon and aluminum zirconium carbon sliding plates, which are divided into two preparation processes: non-burning and high-temperature firing. Non-burning sliding bricks are mainly used for small and medium-sized ladles, used for smelting ordinary steel types, and high-temperature firing Due to the pre-reaction of sliding bricks, the performance of sliding bricks is better, suitable for use in large ladles, converters, etc., and is also the preferred choice for smelting steel varieties, etc., but its production process requires high-temperature firing and asphalt impregnation processes, and the production cost and energy consumption are relatively high. high

Traditional skateboard bricks are all carbon-containing refractory materials. There is a problem of carbon oxidation in the use of skateboard bricks. Carbon oxidation causes the structure of the skateboard to be loose, allowing oxides such as iron, manganese, and calcium to penetrate into the substrate of the skateboard and react with the alumina in the skateboard. And generate low melting material, cause the destruction of the structure of the skateboard brick, and accelerate the oxidation of carbon at the same time

The service life and safety factor of the skateboard tiles are reduced

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