Titanium-magnesium aluminate spinel-brown fused alumina composite sliding plate and production method thereof

Abstract

The invention particularly relates to a titanium-magnesium-aluminum spinel brown fused alumina composite sliding plate and a production method thereof. The titanium-magnesium-aluminum spinel brown fused alumina composite sliding plate comprises the following raw materials in percentage by weight: 35-65% of brown fused alumina, 4-8% of activated alumina micro-powder, 10-38% of magnesium-aluminum spinel, 5-15% of metallic titanium, 5-10% of metallic aluminum and 3-5% of phenolic resin as a binding agent; and the production method comprises the following steps: weighing various raw materials in proportion during production, uniformly mixing, mixing to obtain pug, carrying out mechanical pressing for forming, drying at 180-250 DEG C for 24-48 hours, hooping, grinding, and coating to obtain the product. According to the production method, high-temperature firing and asphalt dipping are not needed, energy conservation and environmental protection are achieved, the production cost is lower, the prepared product is good in oxidation resistance, thermal shock stability and erosion resistance, the apparent porosity is 3%-8%, the volume density is 3.05 g / cm < 3 >-3.20 g / cm < 3 >, the normal-temperature compressive strength is 120-200 MPa, and the high-temperature breaking strength (carbon burying 1450 DEG C * 0.5 h) is 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 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 s...

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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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