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Glass Community Forums Glass Machinery and Glass Equipments for Flat Glass Glass Tempering Furnaces First Heating Up The Glass Tempering Furnace in 4 Steps (Best Free Guide 2022 Updated)

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    • #6152
      Martin
      Keymaster

      How to Heating Up The Glass Tempering Furnace for The First Time?

      Heating up the glass tempering furnace is crucial and very important and the first step for using your new glass tempering furnace. By following this easy 4 steps you can make your furnace ready to production of tempered glass:

      1. When heating the glass tempering furnace for the first time, the temperature should be increased by 30~50°C per hour. The tempering furnace will hold the temperature for 24 hours at each of the following temperature ranges: 200°C, 300~350°C, 400~450°C, and 550°C, depending on the amount of residual moisture in the oven. To ensure that the furnace structure does not deform due to rapid temperature rise, the cumulative temperature holding time at these temperature ranges should be 8~12 hours.
      2. When the furnace temperature is less than 400°C, lift the up-section of the furnace body by 30~100mm and leave the cooling valve of the furnace body, as well as the front and back doors of the tempering furnace, open to discharge moisture in the oven.
      3. When the convection glass tempering furnace is heated up, keep the cooling water pump and the blower running.
      4. Hold the temperature of the furnace for at least 1 hour after it reaches operating temperature before beginning production.

      Heating Up the Glass Tempering Furnace

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