Expanded graphite has been widely used in industry, especially in some high-temperature scenes, the chemical forms of many products will change, but expanded graphite can still complete its existing functions, and its high-temperature mechanical properties are also called mechanical properties. Today, Furuite Graphite Editor will tell you in detail how to use expanded graphite in high-temperature environment:
For the study of high-temperature performance of expanded graphite, there is a set of special high-temperature furnace, sample device fixture and extension device for testing deformation, and a 1000-degree high-temperature testing machine is combined with general material testing machines and testing instruments.
The testing device consists of a testing machine, a high-temperature furnace and a high-temperature mechanical performance testing device. The high temperature furnace is installed on the adjusting beam of the oil pressure testing machine, and rises or falls at a speed of 30cm/minde with the help of the beam to assemble and disassemble the sample and extensometer. The load is applied by the platform of the testing machine.
The high-temperature resistance furnace is specially designed for the compression deformation of expanded graphite, and can also be used to measure the high-temperature properties of other materials. DRZ-4 resistance furnace temperature controller and NiSi-NiCr thermocouple are used to measure, indicate and automatically control the temperature of the electric furnace. In order to adapt to the test, the main technical indexes of the circular resistance furnace are: rated power of 4.5kW, rated voltage of 220V and rated temperature of 1000 degrees. In addition, there are strict regulations on the size of the resistance furnace. In order to keep the peripheral space of the furnace at room temperature and prevent the specimen from oxidation, water cooling device and protective gas were used respectively in the sealing part of the furnace.
The measurement of load and displacement can be divided into automatic recorder and direct reading. The automatic recorder adopts load sensor and displacement sensor, and the signal is amplified by 6D-ZG resistance-inductance strain instrument and then input into the function recorder for recording. The test device consists of a testing machine, a high-temperature furnace and a sample fixture. During the test, adjust the specimen to contact with the pressure head, open the oil fume inlet valve, and then adjust the dial indicator (or dial indicator) to test the deformation of the specimen after the specimen bears the preload (the weight of the preload block).
Qingdao Furuite graphite specializes in processing and producing expanded graphite, graphite paper and other products. Welcome new and old customers to visit and guide our factory.
Post time: Jan-16-2023