What are the requirements and steps for maintenance and upkeep of die heating furnace?

What are the requirements and steps for the maintenance and upkeep of die-heating furnaces?

Die heating furnaces are devices that heat molds, and they play an important role in aluminum alloy die casting.
The heating temperature and time of the molds directly affect the quality and performance of the die-cast products.
Therefore, the working state and effect of the die-heating furnaces are crucial.
The main types of die-heating furnaces are resistance heating furnaces, induction heating furnaces, infrared heating furnaces, etc.
They have their advantages and disadvantages and are suitable for different die-casting processes.
This article aims to introduce the requirements and steps for the maintenance and upkeep of die-heating furnaces, to help die-casting factories improve the equipment’s efficiency and life, ensure the heating quality of the molds, and improve the performance of the die-cast products.

Requirements

The importance of the maintenance and upkeep of die-heating furnaces is self-evident. It can bring the following benefits:

  • Extend the service life of the equipment and reduce the failure rate. Die heating furnaces are affected by factors such as high temperature, high pressure, high current, etc. during the working process, which may cause wear, aging, damage, and even accidents to the equipment’s components. Regular maintenance and upkeep can discover and solve the equipment’s problems in time, avoid equipment damage and shutdown, maintain the equipment’s good condition, extend the equipment’s service life, and reduce the failure rate.
  • Improve heating efficiency, save energy, and reduce environmental pollution. The heating efficiency of the die-heating furnaces directly affects the production efficiency and energy consumption of die casting. If the heating efficiency of the equipment is low, it will lead to a long heating time of the mold, high energy consumption, uneven temperature, and even overheating or underheating of the mold, affecting the quality and efficiency of die casting. Regular maintenance and upkeep can ensure the heating efficiency of the equipment, save energy, and reduce environmental pollution.
  • Ensure the heating quality of the mold and improve the performance of die-cast products. The heating quality of the mold is an important factor in the performance of die-cast products. Suppose the heating temperature and time of the mold are inappropriate. In that case, it will cause deformation, cracks, oxidation, corrosion, etc. of the mold, affecting the life and performance of the mold, and thus affecting the size, surface, strength, toughness, etc. of the die-cast product. Regular maintenance and upkeep can ensure the heating quality of the mold and improve the performance of the die-cast products.

To achieve these benefits, the maintenance and upkeep of die-heating furnaces need to follow these basic requirements:

  • Regularly inspect and clean the equipment’s components, such as the furnace chamber, heating elements, control system, exhaust system, etc., and remove the dust, dirt, oil stains, water stains, etc. inside and outside the equipment, and keep the equipment clean and dry.
  • Regularly replace and repair the equipment’s vulnerable parts, such as electric heating wires, ceramic sleeves, washers, filters, etc., and ensure that they meet the specifications and quality requirements, and avoid affecting the equipment’s working effect due to the damage or wear of the parts.
  • Regularly measure and adjust the equipment’s working parameters, such as temperature, pressure, current, voltage, etc., and ensure that they are within a reasonable range, and avoid affecting the equipment’s heating efficiency and safety due to the deviation of the parameters.
  • Regularly conduct safety tests on the equipment, such as leakage, overheating, overload, etc., and ensure the equipment’s safety performance, and avoid causing harm to personnel or equipment due to the equipment’s failure.

Steps

The specific steps for the maintenance and upkeep of die-heating furnaces are as follows:

  • After the equipment stops working, disconnect the power supply and wait for the equipment to cool down. Do not perform any maintenance and upkeep operations before the equipment cools down, to avoid burns or other injuries.
  • Open the equipment’s cover, and use a soft cloth or brush to remove the dust and dirt inside and outside the equipment, especially the furnace chamber, heating elements, control system, exhaust system, and other components, and be careful not to use water or other liquids to clean the equipment, to avoid damaging or short-circuiting the equipment.
  • Check whether the equipment’s electrical circuits and connections are normal and whether there are any breaks, short circuits, oxidation, etc., especially the electrical components such as the power cord of the resistance heating furnace, the capacitor of the induction heating furnace, the transformer of the infrared heating furnace, etc., and if there are any abnormal circuits or connections, repair or replace them in time, and ensure their safety and reliability.
  • Reconnect the power supply, start the equipment, measure and adjust the equipment’s working parameters, such as temperature, pressure, current, voltage, etc., and ensure that they are within a reasonable range, and according to the different types, specifications, and materials of the molds, choose the appropriate heating temperature and time, and avoid affecting the equipment’s heating efficiency and safety due to the deviation of the parameters.

Therefore, we should choose the die-heating furnace type that suits our actual situation, and according to the equipment’s usage, make a maintenance and upkeep plan.

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