Device and method for testing material heat transfer coefficient of graphitization furnace

The invention provides a graphitization furnace material heat transfer coefficient testing device and a testing method. The testing device comprises a testing furnace, an upper layer, a middle layer and a lower layer are arranged in the testing furnace, the upper layer and the lower layer are filled with carbon black, an inner cylinder and an outer cylinder are arranged in the middle layer, the inner cylinder is located in the outer cylinder, and a temperature measuring area used for containing materials to be tested is formed between the inner cylinder and the outer cylinder in a spaced mode; a heating body is arranged in the inner cylinder, an electrode is arranged at the bottom of the heating body, and the electrode penetrates out of the lower layer and is located on the outer side of the bottom of the testing furnace; a through hole infrared device and a plurality of temperature thermocouples and/or blind hole infrared devices are circumferentially distributed on the testing furnace, the through hole infr