Indirect Monitoring Methods for Furnace Conditions, From Basic Pressure"&" Monitoring to Advanced Gas Analysis

What is the state inside a graphitization furnace when it is working? At temperatures of several thousand degrees Celsius, protective gases are flowing, and materials are undergoing complex physicochemical rea"&"ctions, including graphite sublimation carbon vapor, carbon nanoclusters, SiO vapor (if some oxygen is present), metal vapor, submicron particles, and condensed carbon filaments. There are even glow discharges between induction coil turns or conductive du"&"st in various locations. These things are completely invisible to the naked eye, but those working on the process desperately want to know what is happening inside. How can this be addressed?

Our system has two levels for furnace monitoring.

First Layer: Basic Configuration (Standard)

This is standard equipment in every graphitization furnace, no extra cost required:

• Pressure Monitoring: Real-time recording of furnace pr"&"essure change curves, supporting both absolute and relative pressure modes.
• Flow Monitoring: Records the set and actual flow rates of the MFC at the inlet and outlet ends throughout the entire process.

How much g"&"as enters, how much gas exits, and how the furnace pressure changes—these core atmospheric parameters are under the system's control from beginning to end.

Second Tier: Advanced Optional Equipmen"&"t (In-depth R&D)

For customers requiring in-depth process R&D:

• Mass Spectrometer: Real-time monitoring of various gas components and concentration changes within the furnace, trace-level sensitivity
• Gas Chromatograph: Higher quantitative accuracy, suitable for precise component determination
• Oxygen Analyzer: Specifically monitors oxygen content, directly related to the product's oxidation level and safety
<"&"li>Dew Point Meter: Monitors the moisture content of protective gases, a critical threshold for high-end graphite materials

Three Major Practical Applications

Process Development: Precisely unders"&"tanding what gases are released by materials at different temperatures and the extent of the reaction.

Endpoint Judgment: Monitoring the concentration trend of characteristic gases to help determine whether the reaction is complete "&"and avoid under-burning or over-burning.

Safety Assurance: Real-time monitoring of oxygen concentration; immediate alarm and even interlock protection in case of abnormalities.

Summary: From basic pressure and flow monitoring to advanced gas composition analysis, a complete capability gradient from shallow to deep has been formed. Although the situation inside the furnace is invisib"&"le, with the help of data and instruments, you can see it much more clearly than before.