Sintering furnaces are mainly used for the sintering of ceramic powders, ceramic ferrules, zirconia ceramics, and diamond saw blades. They can also be used for heat treatment processes such as annealing copper materials and steel strips. A sintering furnace achieves densification through high temperature, allowing solid particles in ceramic green bodies to bond, form grain growth, reduce porosity and grain boundaries, and ultimately produce a dense polycrystalline structure with a defined microstructure.
So what should be emphasized during daily use?
- Perform proper daily management
During operation, users should strictly follow operating procedures, keep detailed operation logs and maintenance records, and track accumulated running hours. This helps clearly understand the furnace’s condition, monitor changes, identify problems early, and resolve them promptly. - Inspect before use after maintenance
If the furnace has been repaired, a full inspection must be conducted before restarting. This includes checking for overheating, broken heating elements, uneven temperature distribution, or discoloration of heating components. - Do not operate under overload
The furnace should never exceed its rated capacity. The maximum working temperature of alloy heating elements refers only to the allowable surface temperature in dry air, not the temperature of the heated material or surrounding environment. Overloading will accelerate damage. - Heating elements should not contact the product
Heating elements must not contact copper, aluminum, zinc, tin, lead, or similar materials under any circumstances. When measuring furnace temperature uniformity, the thermocouple position and spacing from heating components must be correct. - Avoid keeping the furnace door open
After the furnace reaches operating temperature, the door should not be left open for a long time. High temperatures combined with rapid temperature fluctuations can cause chemical reactions and oxidation on heating elements, resulting in peeling and reduced lifespan.