With the continuous development of modern carbon potential control technology, zirconia oxygen probes have become the main means of carbon potential control in controllable atmosphere carburizing and carbonitriding equipment. How to correctly use oxygen probes in controllable atmosphere heat treatment equipment is key to precisely controlling carbon potential in controllable atmosphere heating furnaces. Today, the technical engineers of Anhui Tianfen Instrument Co., Ltd. will provide a detailed analysis of the correct usage methods of zirconia oxygen probes in controllable atmosphere heating furnaces. Let's take a look!

　　 Key points for use:

　　I. Carefully inspect the oxygen probe

　　Zirconia oxygen analyzers and oxygen probes are highly sensitive and high-precision sensing instruments, and their core component, the zirconia head, is susceptible to impact and breakage. Before using a new zirconia oxygen probe, we should carefully and promptly check whether the zirconia oxygen probe is bent or has signs of collision. Check if the outer tube of the zirconia oxygen analyzer probe has cracks, and if the zirconia part of the probe has cracks, breakage, or ceramic fragments.

　　II. The choice of installation location is crucial

　　When installing the zirconia oxygen probe, the installation position must be inserted into the furnace chamber by 50-100mm. The purpose of this is to ensure it is installed in an area where the furnace atmosphere is relatively stable. Do not install it near the dripping ports of various carburizing agents, near fans, or at the furnace opening, corners, or areas with significant vibration. If installed on the lid of a pit furnace, a protective sleeve should be added to the front end of the zirconia oxygen probe, and good atmosphere circulation should be ensured. How to correctly use zirconia oxygen probes in controllable atmosphere heating furnaces?

　　III. Maintain good sealing

　　Ensure good sealing between the oxygen probe mounting base and the furnace shell to prevent air leakage. Use a shielded signal cable for the oxygen probe connection; the shield should not be grounded. Pay attention to the positive and negative poles of the wiring. The shielded signal cable should be routed separately to prevent signal interference.

　　IV. Avoid rapid cooling and heating

　　Try to install the zirconia oxygen probe into the furnace at room temperature. As the furnace heats up to the operating temperature, avoid rapid cooling and heating. Handle with care during installation. In special circumstances, if the oxygen probe needs to be removed or inserted while at high temperatures, the removal or insertion speed should be controlled within 30 mm/min. How to correctly use zirconia oxygen probes in controllable atmosphere heating furnaces?

　　V. Try not to install and use it when pre-carburizing is insufficient

　　When installing and using the zirconia oxygen analyzer probe for the first time, the zirconia probe needs to be pre-carburized for 8-24 hours. Try not to install and use the zirconia oxygen probe when a new furnace just begins pre-carburizing. This is because during pre-carburizing in a new furnace, there may still be more moisture and other impurities in the furnace, leading to an unstable atmosphere, which will directly affect the use of the zirconia oxygen probe.

　　As a domestic professional manufacturer of zirconia oxygen probes, Anhui Tianfen Instrument Co., Ltd. masters leading international core technologies, is equipped with high-end production and manufacturing equipment, achieving a perfect integration of advanced technology and product functions. The zirconia oxygen probes it researches and produces offer advantages such as accurate measurement, fast response speed, and intelligent simplicity, and it also provides maintenance and repair services for imported zirconia oxygen probes. How to correctly use zirconia oxygen probes in controllable atmosphere heating furnaces?

　　High-quality products and a mature after-sales service system have enabled Anhui Tianfen Instrument Co., Ltd. to gradually become a well-known and comprehensively strong professional service provider of zirconia oxygen analyzers in industries such as power, metallurgy, heating, building materials, and electronics. Its zirconia analyzer and zirconia oxygen probe series products are sold well in 23 overseas countries!