china eaf electrodes
What are the effects of the mechanical strength of china eaf electrodes?
China eaf electrodes are conductive electrodes for various submerged electric furnaces, which are indispensable products in industrial production. We, CGM Carbon Co., Ltd., have looked through many domestic and foreign materials, but did not find any materials that specifically discuss the mechanical strength of china eaf electrodes. To promote the improvement of the quality of china eaf electrodes, we can help manufacturers who use china eaf electrodes to master the performance of china eaf electrodes. For this reason, we CGM Carbon Co., Ltd. specially discusses the mechanical strength of china eaf electrodes. In the national standard of china eaf electrodes, there is no mechanical strength quality index of china eaf electrodes, only the quality index of compressive strength of china eaf electrodes. The mechanical strength itself includes the compressive strength, and has certain relevance, as the national standard It may not be possible to put everything into the quality standard, but the national standard is the standard more than ten years ago. The industry of china eaf electrodes has developed rapidly over the past ten years. At CGM Carbon Co., Ltd., we specifically discuss the strength of china eaf electrodes. At that time, I had to do a comparative study. The mechanical strength of china eaf electrodes includes compressive strength, flexural strength and tensile strength. The mechanical strength of carbon products is anisotropic, that is, the composition of the raw material particles of carbon products is different in the horizontal and vertical directions.
Due to the production method of china eaf electrodes, we will not discuss the anisotropy of the mechanical strength of china eaf electrodes here. The composition of raw materials of china eaf electrodes, that is, different raw materials, the particle size and ratio of the raw materials, the thickness and ratio of powder, and the content of coal pitch all have an impact on the mechanical strength of china eaf electrodes. We CGM Carbon Co., Ltd. Another discussion. We at CGM Carbon Co., Ltd. only discuss the impact of temperature changes on the mechanical strength of china eaf electrodes during the sintering process.
During the sintering process, the mechanical strength of china eaf electrodes increases as the temperature rises [within a certain temperature range 0-2200 degrees]. When the sintering temperature of china eaf electrodes is below 300 degrees, the china eaf electrodes are in a plastic state and have mechanical strength*. According to the test and calculation by the technicians of CGM Carbon Co., Ltd., the compressive strength at this time is only 3-10 MPa, and there is almost no tensile strength. China eaf electrodes soft-breaking accidents of submerged electric furnaces often occur in this interval. When the sintering temperature of china eaf electrodes is 300-800 degrees, the volatile matter of coal tar pitch has been discharged, and the remaining coal tar pitch has been carbonized to form a network, which is fused with various china eaf electrodes raw materials, and the mechanical strength reaches the standard value. . Our CGM Carbon Co., Ltd. technicians calculated that the compressive strength of the china eaf electrodes at this time was 17-33 MPa, the flexural strength was 7–17 MPa, and the tensile strength was 4–8 MPa.
After the electrode below the copper tile of the submerged electric furnace enters the smelting process, the temperature of the electrode will rise further due to the further increase in the temperature of the raw material, and the mechanical strength will increase with the rise in temperature. The temperature of other materials rises to 1500 degrees. When the mechanical strength drops sharply, such as heat-resistant alloys, the mechanical strength of carbon materials is increasing at 1500 degrees. Only when the mechanical strength of carbon materials is measured at 2200 degrees, the mechanical strength begins to gradually decrease. Therefore, carbon materials have unique advantages as high temperature resistant materials. The sintering of china eaf electrodes is a very complicated process. There are always things that CGM Carbon Co., Ltd. can’t recognize. Welcome colleagues and colleagues to correct and discuss.