Tempering Adhesive

Abstract

The invention relates to a tempering adhesive, which belongs to the graphite electrode pitch adhesive. A tempering adhesive is composed of the following components by weight percentage: 20%-50% of medium-temperature asphalt, and 80%-50% of modified asphalt. It improves the coking value of the binder pitch, increases the yield of raw products after roasting by 1.5-4%, increases the density and strength of products by 1.5-3%, and reduces the labor intensity of operators.

Description

technical field

[0001] The invention relates to an adhesive used for forming carbon products, especially a pitch adhesive used for producing graphite electrodes and a preparation method thereof. Background technique

[0002] Coal tar pitch binder is one of the main raw materials for the production of carbon materials and carbon products. In the process of producing graphite electrodes or other carbon products, the coal tar pitch binder is melted and mixed with aggregate, formed, co-carbonized and graphitized. , made of carbon materials and carbon products.

[0003] The production of graphite electrodes in my country generally uses medium-temperature asphalt as the binder. First, our company also uses pure medium-temperature asphalt as the binder for electrode production before quenching and tempering the binder. Due to the low softening point of medium-temperature pitch, summer Transportation is difficult, and the workload of employees unloading and adding materials is huge;...