Cement base insulator adhesive

Abstract

The invention discloses a cement base adhesive for an electric porcelain insulator. The cement base adhesive comprises the following components in percentage by mass: 22-42% of cement, 5.5-12.5% of mineral powder, 2-7.5% of silicon micro powder, 35-64% of quartz sand, 0.25-0.7% of a polycarboxylic acid water reducer, 0.015-0.099% of lithium carbonate, 0.025-0.06% of a defoaming agent and 7-15% of water. The cement base insulator adhesive disclosed by the invention is composed of Portland cement, a mineral admixture, an additive and the like, and has good working performance, mechanical properties and durability. The compression strength of 3 days can reach 75MPa, the compression strength of 11 days can reach 100MPa, the compression strength of 28 days can reach 122MPa, and the flexural strength of each stadium is greater than 12.5MPa.

Description

technical field [0001] The invention belongs to the field of production of electric porcelain insulators, in particular to a cement-based adhesive for electric porcelain insulators. Background technique [0002] With the rapid development of the domestic power industry, large-span, long-distance, ultra-high voltage transmission has been rapidly popularized, and correspondingly more stringent requirements have been put forward for electric porcelain products. The cement adhesive in electric porcelain products plays the role of organization and connection of the overall structure, and is also the weakest link in electric porcelain products. The production of insulators requires a large amount of cement, so its quality is directly related to the performance, life and reliability of insulators. Therefore, improving the strength and performance of cement adhesive plays an extremely important role in improving the overall performance of electric porcelain products. [0003] With ...

AI Technical Summary

Problems solved by technology

High-performance electrical porcelain products require high-performance cement adhesives for glue binding. Although Portland cement has been used in the electrical porcelain industry for a long time and has rich experience in use, traditional cement adhesives have poor workability, low strength, and maintenance. Problems such as too long cycle time, low-performance adhesives will cause cracks or even breakage of insulators used in harsh environments, which requires the performance of cement-based adhesives to achieve early strength, high strength, superior work performance and good durability.

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