One-time roasting method for isostatic graphite product

• Main Authors: YANG XIAOFENG, ZHANG PEILIN, QIAN JINGRONG, ZHANG PEIMU, ZHANG RIQING, QI JINJUN, CHI JIULIN
• Format: Patent
• Language: English
• Published: 01.04.2015
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention belongs to the field of processing of isostatic graphite materials, and in particular relates to a one-time roasting method for an isostatic graphite product. The one-time roasting method for the isostatic graphite product comprises the step of performing one-time roasting on a pressed green body in a sagger, wherein the one-time roasting includes three temperature rising stages: when the temperature is 100-300 DEG C, temperature rising rate is 0.5-1.0 DEG C/h; when the temperature is 300-650 DEG C, temperature rising rate is 0.2-0.3 DEG C/h; when the temperature is 650 -1000 DEG C, temperature rising rate is 1.0-1.5 DEG C/h. Compared with the prior art, by optimizing and improving the temperature rising curve, heating duration and like factors of the one-time roasting, the method disclosed by the invention can be used for improving the coking rate of a binder, and the method can be also used for overcoming the shortcomings of crack and low product rate caused by small particles.