The high-temperature crucible furnace indirectly heats the material inside the crucible through external heat sources such as resistors, gas, induction coils, etc., causing it to melt or undergo high-temperature reactions. Its core component is a high-temperature resistant crucible, usually made of materials such as graphite, quartz, alumina, or tungsten based alloys, with a melting point of over 2000 ℃, ensuring that it is not easily deformed or melted at high temperatures. The material does not come into direct contact with the heat source, avoiding contamination from fuel or flames, especially suitable for melting high-purity metals such as gold, silver, and aluminum alloys.
Working principle: The high-temperature crucible furnace is mainly composed of furnace body, heating system, crucible, temperature control system, and other parts. The furnace body is made of high-temperature resistant materials that can withstand thermal shock and chemical erosion. Heating systems often use electric or gas heating methods to transfer heat to the crucible through heating elements. The crucible, as a melting vessel, is made of high-purity refractory materials such as graphite, quartz, or alumina. The temperature control system is used to accurately control the temperature inside the furnace, ensuring the stability and reliability of the melting process.
Main features: It has high temperature stability and can provide a stable heating environment at thousands of degrees Celsius; Good heating uniformity, which can achieve uniform heating of the sample; Strong versatility, suitable for heat treatment of various materials such as metals, ceramics, and glass; Easy to operate, equipped with a user-friendly control system and interface; Safe and reliable, structurally stable, heating elements resistant to high temperatures; Energy saving and environmentally friendly, usually adopting energy-saving design with low energy consumption.
Application areas: Widely used in the ceramic industry, for processes such as sintering ceramic raw materials, forming and sintering ceramic products; In the metal industry, it can be used for heat treatment, melting, and cladding of metal materials; In the field of materials science, it is used for experimental research on materials sintering, crystal growth, heat treatment, etc; In the glass industry, it can be used for processes such as sintering and glass forming of glass materials.
Daily operations:
Before starting, check if the crucible is securely installed to avoid leakage caused by displacement.
After melting, rinse the furnace with pure water to prevent residual material crystallization and blockage.
When not in use for a long time, remove the crucible and store it in a dry environment to avoid moisture and deformation.