This standard specifies the integrity requirements and inspection and evaluation methods for chamber quenching furnaces. This standard applies to chamber-type quenching heat treatment furnaces used by electronics industry enterprises for carburizing, carbonitriding and other heat treatment processes on steel parts.
SJ/T 31424-1994 history
1970SJ/T 31424-1994 Requirements of readiness and methods of inspection and assessment for chamber quenching heat treatment furnaces