Graphitization Furnace Maintenance: A Practical Checklist to Extend Equ"&"ipment Life

Graphitization furnaces are complex devices involving the coupling of multiple systems, including high temperature, vacuum, electrical, and water cooling. Proper maintenance directly determines the lifespan of the equipment. The follo"&"wing is a periodic maintenance checklist.

Daily Maintenance (Per Shift/Daily)

• ? Check if the cooling water flow, pressure, and temperature are normal
• ? Check the protective gas pressure and pu"&"rity
• ? Check the operation of the power cabinet cooling fan
• ? Clean the dust from the work surface and equipment surface
• ? Record operating parameters and abnormal conditions

Weekly Maintena"&"nce

• ? Check the condition of the furnace door seal ring for aging and cracks
• ? Check for leaks at all connections in the vacuum pipeline
• ? Clean the inlet and outlet filters
• ? Check for loose wiring terminals i"&"nside the electrical cabinet
• ? Backup this week's operating data. Monthly Maintenance ? Calibrate the infrared thermometer with a standard thermocouple (on-site comparison) ? Check the vacuum pump oil color and level, replace if necessary."&" ? Check the appearance of the heating element and insulation material. ? Test the safety interlock function (simulate a fault). ? Tighten all mechanical connections (flanges, bolts, etc.). Annual Maintenance ? Comprehensive overhaul: heating e"&"lement, insulation material, seals. ? Replace worn parts: O-rings, gaskets, filters. ? Professional vacuum pump maintenance: oil change, cleaning, performance testing. ? Power System Testing: IGBTs, Capacitors, Control Board ? Comprehensive Testing"&" of Safety Protection System ? Infrared Thermometer Calibration and Inspection Data: Graphitization furnaces of the same brand and model, those with proper maintenance have been running well for 15 years, while those without maintenance have been exper"&"iencing constant problems for only 8 years. The money and time invested in maintenance are far less than the losses from premature equipment failure.")