A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a sintering process for a silicon carbide rod. The process includes: putting a silicon carbide rod blank in a vacuum container of a 20-50mm mercury column, then raising the temperature to 350DEG C at a rate of 5-10DEG C/min and maintaining the state for 20min, then raising the temperature to 920DEG C at a rate of 10-12DEG C/min and maintaining the state for 30min; embedding the silicon carbide rod blank subjected to first sintering into mixed powder of silicon dioxide and carbon, carrying out ohmic heating and performing second sintering under a high temperature of 2000DEG C, and crystallizing silicon carbide again to obtain a silicon carbide rod electric heating element. By putting the silicon carbide rod blank in the vacuum container of the 20-50mm mercury column to perform first sintering, a binder can evaporate, and also impurities in the binder can be removed. The technological parameters are reasonable, the production efficiency is high, and the product quality is good.
The invention discloses a sintering process for a silicon carbide rod. The process includes: putting a silicon carbide rod blank in a vacuum container of a 20-50mm mercury column, then raising the temperature to 350DEG C at a rate of 5-10DEG C/min and maintaining the state for 20min, then raising the temperature to 920DEG C at a rate of 10-12DEG C/min and maintaining the state for 30min; embedding the silicon carbide rod blank subjected to first sintering into mixed powder of silicon dioxide and carbon, carrying out ohmic heating and performing second sintering under a high temperature of 2000DEG C, and crystallizing silicon carbide again to obtain a silicon carbide rod electric heating element. By putting the silicon carbide rod blank in the vacuum container of the 20-50mm mercury column to perform first sintering, a binder can evaporate, and also impurities in the binder can be removed. The technological parameters are reasonable, the production efficiency is high, and the product quality is good.
Sintering process for silicon carbide rod
QIAO SHUAI (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME