High-performance silicon carbide ceramic dehydrating element and preparation method thereof

Abstract

The invention relates to a high-performance silicon carbide ceramic dehydrating element and a preparation method thereof. The high-performance silicon carbide ceramic dehydrating element is prepared from the following components in parts by weight: 93 to 99 parts of silicon carbide ultrafine powder, 1 to 5 parts of boron carbide ultrafine powder, 1 to 5 parts of nanometer titanium boride, 0.1 to 1 part of graphene aqueous solution, 8 to 15 parts of water soluble phenol-formaldehyde resin, 5 to 10 parts of efficient dispersing agent, and 1 to 5 parts of blank enhancing agent. The preparation method comprises the following steps: circularly mixing and grinding materials; performing spray granulation; performing dry pressing; curing a green body and sintering in vacuum to obtain a final product. By adopting the high-performance silicon carbide ceramic dehydrating element and the preparation method thereof, the security and convenience are improved in a production process, and the production cost is lowered; a small amount of nanometer-grade titanium boride is introduced, so that the inside is optimized, and the product performance is improved greatly.

Description

technical field [0001] The invention relates to a high-performance silicon carbide ceramic dehydration element and a manufacturing method thereof. Background technique [0002] The wire part of the paper machine is the most important part of the paper machine that affects the quality of the paper web, and the ceramic dehydration element is the most important key component that affects the service life of the equipment. At present, ceramic dehydration components are widely used in the wire section of paper machines, such as forming boards, dewatering boards, vacuum suction box panels, moisture absorption box panels, etc. With the increasing market demand for high-grade paper and the continuous improvement of paper quality requirements, the working speed of the paper machine is also increasing, from the original 300-500 m / s to 1200-1500 m / s or even higher. Therefore, the original alumina ceramic dehydration elements for low-speed paper machines can no longer meet the requirem...

AI Technical Summary

Problems solved by technology

With the increasing market demand for high-grade paper and the continuous improvement of paper quality requirements, the working speed of the paper machine is also increasing, from the original 300-500 m / s to 1200-1500 m / s or even higher. Therefore, the original alumina ceramic dehydration elements for low-speed paper machines can no longer meet the requirements of high-speed paper machines in terms of wear resistance, density, porosity, etc., and must be used with better wear resistance and higher density Tall silicon carbide ceramic dehydration elements

At present, the silicon carbide dehydration components used in domestic high-speed paper machines are all imported from abroad, which is expensive and inconvenient for later maintenance. There is no domestic manufacturer to develop and produce related products.