Online monitoring alarm device for gas carburizing equipment

Abstract

The invention discloses an online monitoring alarm device for gas carburizing equipment. A carbon potential signal output end of a carbon potential control instrument, a temperature signal output endof a carburizing furnace temperature control instrument, a temperature signal output end of a tempering furnace temperature control instrument, a rotating speed signal output end of a first rotating speed sensor for detecting the rotating speed of an atmosphere stirring fan, a rotating speed output end of a second rotating speed sensor for detecting the rotating speed of a quenching oil stirring fan, and a liquid level signal output end of a liquid level sensor for detecting the quenching oil liquid level are all connected with a signal input end of a controller through signal lines, and an alarm signal output end of the controller is connected with an alarm signal input end of an alarm through a signal line. The controller receives signals of the temperature, the carbon potential, the stirring fan rotating speed, the quenching oil liquid level and the like sent by each device in real time, data comparison is carried out through programs written in advance in the controller, if data exception is found, the alarm gives an alarm to inform field personnel to handle in time, so that the percent of pass of products is improved, and the quality defects of batch products are avoided.

Description

technical field [0001] The invention relates to a special monitoring device for gas carburizing equipment for heat treatment of metal materials, in particular to an online monitoring and alarm device for gas carburizing equipment. Background technique [0002] Traditional metal material heat treatment gas carburizing equipment includes carburizing furnace and tempering furnace. Both carburizing furnace and tempering furnace are electric furnaces whose furnace temperature is controlled by temperature control instruments. The temperature control instruments obtain the temperature in the furnace through thermocouples installed on the furnace. , and then adjust the injected propane gas through the carbon potential control instrument, and use the oxygen probe as the carbon potential feedback to achieve the purpose of automatic control of the carbon potential; during the automatic operation of the equipment, in order to monitor the stable operation of the system to ensure product q...

AI Technical Summary

Problems solved by technology

[0002] Traditional metal material heat treatment gas carburizing equipment includes carburizing furnace and tempering furnace. Both carburizing furnace and tempering furnace are electric furnaces whose furnace temperature is controlled by temperature control instruments. The temperature control instruments obtain the temperature in the furnace through thermocouples installed on the furnace. , and then adjust the injected propane gas through the carbon potential control instrument, and use the oxygen probe as the carbon potential feedback to achieve the purpose of automatic control of the carbon potential; during the automatic operation of the equipment, in order to monitor the stable operation of the system to ensure product quality, Every once in a while it is necessary to manually monitor the parameters of the carburizing furnace and the tempering furnace, and to read and record the furnace temperature, the speed of the atmosphere stirring fan, the speed of the quenching oil stirring fan, and the liquid level of the quenching oil, which is labor-intensive. Unable to monitor in real time, once the abnormal operation of the equipment is not discovered in time, it will cause quality defects in batch products

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