Carburizing treatment monitoring system
A carburizing treatment and monitoring system technology, applied in the field of monitoring systems, can solve the problems of inaccurate adjustment and monitoring of carbon potential, single adjustment and monitoring method, poor accuracy of carbon potential adjustment and monitoring, etc.
Pending Publication Date: 2021-05-11
广州丰东热炼有限公司
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Problems solved by technology
[0004] At present, the adjustment of carbon potential in the carburizing process relies on the control and monitoring of CO content and CO2 content. The adjustment and monitoring method is single and has certain limitations, which may easily lead to inaccurate adjustment and monitoring of carbon potential.
Therefore, the existing technology has the problem of poor adjustment and monitoring accuracy of carbon potential.
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[0039] A carburizing treatment monitoring system such as Figure 1 to Figure 4 As shown, it includes a nitrogen tank 22, a zero point gas tank 31, a standard gas tank 32, an air pump 11, a gas analyzer 13, a circuit breaker assembly 41 and a control module 48. Gas pipe 21, the exhaust end of air pump 11 is communicated with detection pipe 12, and gas analyzer 13 is communicated with detection pipe 12, and detection pipe 12 is equipped with the condenser 14 that is positioned at between gas analyzer 13 and air pump 11, reduces by condenser 14 Water vapor entering the gas analyzer 13. The zero-point gas tank 31 and the standard gas tank 32 are all communicated with the detection tube 12 between the gas analyzer 13 and the air pump 11, and the nitrogen tank 22 is communicated with the intake pipe 21, and the intake pipe 21 is provided with an intake electromagnetic valve 23, and the nitrogen tank 22 is connected with the air intake pipe 21. A nitrogen solenoid valve 24 is provid...
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The invention discloses a carburizing treatment monitoring system, relates to the technical field of monitoring systems, and solves the problem of poor carbon potential adjustment and monitoring accuracy degree. The carburizing treatment monitoring system is technically characterized by comprising a nitrogen tank, a zero gas tank, a standard gas tank, a gas pump and a gas analyzer. The carbon potential is adjusted by adjusting the CH4 gas concentration, and the requirement for the carbon potential in the carburizing treatment process is met. A feasible method for adjusting and monitoring the carbon potential is added for the prior art, so that the method for adjusting and monitoring the carbon potential is enriched. The invention further discloses a carburizing treatment monitoring method, which comprises the following steps of: zero point calibration; slope calibration; automatic nitrogen purging; an early stage of a strong infiltration stage; a later stage of the strong infiltration stage; and a diffusion stage. Through slope calibration and zero calibration, the influence of the gas in the carburizing furnace on the calibration of the gas analyzer is avoided, and the advantages of improving the adjustment of the carbon potential and being high in monitoring accuracy degree are achieved.
Description
technical field [0001] The invention relates to the technical field of monitoring systems, in particular to a carburizing treatment monitoring system. Background technique [0002] Carburizing refers to the process of infiltrating carbon atoms into the surface layer of steel, and also makes the workpiece of low carbon steel have the surface layer of high carbon steel, and then undergoes heat treatment processes such as quenching and low temperature tempering, so that the surface layer of the workpiece has high hardness and resistance abrasiveness, while the central part of the workpiece still maintains the toughness and plasticity of low carbon steel. The carburizing process is widely used in the processing of gears, shafts, camshafts and other parts of aircraft, automobiles and tractors. Gas carburizing is a carburizing treatment process that uses active gas containing carbon atoms as a carbon-containing medium. In order to ensure the carburizing treatment effect of the wo...
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Login to View More IPC IPC(8): G01N33/00
CPCG01N33/0006G01N33/004G01N33/0047G01N33/0063
Inventor 肖锦涯夏晓宇韦小林曾庆桥缪振亮黄家发范欣江丽如刘美容王申韦汉伟
Owner 广州丰东热炼有限公司