As an important component of many industrial equipment, the sealing performance of the heating tube is very important. As an efficient sealing method, glass seal sealing technology is widely used in the heating elementsmanufacturing process. Sealing technology with glass sealant uses glass beads that melt at high temperatures, fill the space at the end of the heater tube, and form a solid sealing layer. This technology ensures that the inside of the heating tube is completely isolated from the outside environment, thus preventing gas or liquid leakage and moisture absorption. The glass sealing technology of electric heaters is an efficient and reliable sealing method, which is of great importance to ensure the normal operation and service life of heating elements. By mastering its technical principles and operating procedures, we can better apply this technology and provide strong guarantees for the stable operation of industrial equipment.
Glass System: Silicate
Color: Black
Glass transition point : 538±1 °C
Expansion softening point: 569±1 °C
Coefficient of expansion (300°C) : 9.3X10-6
Density (cm3): 2.6g
Sealing Temperature: 780-870
Size: according to customer specifications
1. Preparation: Select the appropriate size glass sealants and ensure that their quality and purity meet the requirements. At the same time, clean the end of the heating tube to remove impurities and oil stains and other residues.
2. Heating Treatment: Heat the end of the heater tube to a suitable temperature so that the glass seal can melt smoothly. The temperature and time should be strictly controlled during the heating process to avoid damaging the electrical resistance.
3. Glass sealant filling: Fill the prepared sealant evenly into the space at the end of the electrical resistance. When filling it up, make sure that the glass sealants are tightly compacted and there are no gaps.
4. Cooling and curing: After filling, allow the coil to cool naturally to room temperature. During the cooling process, the glass sealant will gradually solidify to form a strong sealing layer.
Glass ceramic sealant sealing technology is widely used in the manufacture of various electric heaters that require high sealing performance, such as electric water heaters, industrial heating equipment, etc. Its excellent sealing performance and stable resistance to high temperatures enable the heating pipe to operate stably for a long time in harsh working environments.
When performing sealing operations with the glass sealant, the following points should be taken into account: first, the temperature and heating time should be strictly controlled to avoid incomplete melting of the glass seal or damage to the heating element; Second, glass seals need to be filled evenly and tightly to avoid gaps; Finally, external force interference should be avoided during the cooling process to avoid affecting the sealing effect. If you encounter issues such as poor sealing, you can check if operating procedures are standardized or adjust parameters such as temperature and heating time to resolve the issue.