This was a small-batch, high-difficulty customization. The research team from the University of Warsaw needed a micro heating element that could be embedded into the sidewall of a corundum crucible in their self-built high-temperature sintering furnace, requiring long-term stable operation at 18°C under an argon atmosphere. After over a month of material selection and process validation, we delivered 20 final samples. The tube body is made of high-temperature resistant alloy Incoloy 60H, the heating element uses platinum-rhodium alloy wire, and the insulation material is high-purity alumina ceramic powder. The greatest challenge was achieving reliable insulation and lead sealing at high temperatures within an extremely small size (Φ7mm). We employed segmented filling and special sintering processes, ultimately enabling the product to meet requirements in testing. The professor emailed after receiving and testing the samples: "The heating performance and temperature stability exceeded our expectations, which is crucial for our study of the sintering kinetics of new ceramic materials." Although the quantity is small, this batch signifies our R&D capability in the field of special high-temperature experimental heating elements.
