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Writer's pictureFranky Feng

How to clean glass tempering machine / oven?



During the operation of the tempering furnace, when obvious stains, pitting or roller marks are found on the bottom surface of the tempered glass, you need to clean the oven. You may follow the following two steps for cleaning:


The surface of the ceramic roller is white but rough: the main cause is the glass powder or other dirt attached to the rollers. Now it’s easy to clean the rollers with an automatic roller cleaning machine/robot. The process is automatic, labor and timing saving. If you will clean manually, here are some tips:


A. Use a vacuum cleaner to remove the dust.


B. Polish the particles on the surface with 800 ~ 1000 # sand cloth until the ceramic surface smooth, you can touch with your hands to check.


C. Wipe the ceramic roller with a damp cloth, starting from the middle and moving slowly to both ends. Wash and clean the cloth after cleaning every two rollers.


D. Wipe until there is no white dust on the ceramic roller, you can use a vacuum cleaner to clean.

E. Raise the temperature of the furnace to about 100 °C and then cool it down. Check ceramic roller, if no dust then you can close the furnace for production.


2. Ceramic roller surface has brown spots, this phenomenon is mainly caused by superfluou SO2 gas, cleaning steps are as follows:


Heat up the bottom of the furnace to about 70 °C, clean the rolls with warm water, SO2 will be easily dissolved in water.


B. After cleaning, raise the furnace temperature to about 200 °C, so as to evaporate the ceramic roller and furnace insulation cotton moisture.


C. Cooling tempering furnace.


D. Clean the ceramic roller with damp cloth, slowly move from the middle to both sides.

E, until there is no white dust on the pottery roller, you can use a vacuum cleaner to clean.Wash and clean the cloth after cleaning every two rollers.


F. Raise the furnace temperature to about 100 °C then cool it down to check if any dust on roller surface.


The full cleaning process takes around 6-8 hours by four operators, and it’s a bit troublesome. To make it quick and easy, we do recommend to use a ceramic roller cleaner.




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