graphite sagger
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Here are the precautions for using graphite saggers:
2025-01-21

Here are the precautions for using graphite saggers:

  1. Handle with Care
    • Graphite saggers are brittle and prone to cracking or breaking. When moving and placing them, it should be done gently to avoid collisions with other hard objects. Dropping or rough handling can cause damage to the sagger, affecting its service life and the quality of the fired products.
  2. Preheating Treatment
    • Before using the graphite sagger, it is usually necessary to perform preheating. This is because sudden exposure to high temperatures can cause thermal shock to the sagger, leading to cracks. The preheating process should be carried out slowly to allow the sagger to adapt to the temperature change gradually. The specific preheating temperature and time depend on the specific situation of the sagger and the firing process.
  3. Cleaning and Inspection
    • The graphite sagger should be cleaned before and after each use. Remove any remaining materials, ashes or dirt on the surface to prevent them from affecting the next use. Meanwhile, carefully inspect the sagger for cracks, chips or other damages. If any problems are found, the sagger should be repaired or replaced in time to avoid affecting the firing effect.
  4. Loading and Unloading
    • When loading materials into the graphite sagger, make sure that the materials are evenly distributed to avoid local overloading, which may cause the sagger to deform or break. During unloading, also be careful not to scratch or damage the sagger. Use appropriate tools and techniques to ensure the integrity of the sagger.
  5. Temperature Control
    • Strictly control the temperature range during the use of the graphite sagger. Do not exceed its maximum temperature limit to prevent the graphite from oxidizing or the sagger from deforming and losing its performance. In addition, the heating and cooling rates should be controlled properly to avoid rapid temperature changes that could cause stress on the sagger.
  6. Storage Conditions
    • After use, the graphite sagger should be stored in a dry and ventilated place. Avoid storing it in a humid environment to prevent moisture absorption and oxidation of the graphite. It is best to store it in a dedicated storage rack to keep it stable and prevent accidental damage.
  7. Compatibility with Materials
    • Ensure that the materials to be fired are compatible with the graphite sagger. Some materials may react chemically with graphite at high temperatures, which can affect the quality of the products and the service life of the sagger. Therefore, it is necessary to understand the properties of the materials and choose the appropriate sagger.
  8. Regular Maintenance and Replacement
    • Establish a regular maintenance system for graphite saggers. Check and maintain them regularly according to the usage frequency and working conditions. Even if there is no obvious damage, it is recommended to replace the sagger regularly to ensure the stability and reliability of the firing process.
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