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Advantages of ceramic heating sheets


Advantages of ceramic heating sheets:

Advantages of ceramic heating sheets:


1. Simple structure;


2. Rapid temperature rise and fast temperature compensation;


3. High power density;


4, the heating temperature is high, up to 500 ° C or more;


5, high thermal efficiency, uniform heating, energy saving;


6, no open fire, safe to use;


7, long life, power loss reduction;


8. The heating element is insulated from the air, and the components are resistant to acid and alkali and other corrosive substances;


Fourth, the main raw materials:


1. Substrate: white multi-layer alumina ceramic with а-Al2O3 content of not less than 95%


2. Lead wire: Nickel wire with Ф0.48mm is used.


3, casing, adhesive tape: Teflon, high temperature adhesive tape


4, resistance: high temperature materials such as tungsten


Five, the main performance:


1, electrical performance


Insulation resistance: R≥5×108Ω [500VDC]


Rated applied voltage: 220VAC/110VAC


Resistance: R + 10% (23 + 1 ° C) or according to user contract requirements.


2, aging test: apply 110% of the rated voltage, a diode in series, on and off for 3 minutes for a cycle, a total of 2 cycles without abnormalities.


3, voltage boost test: add 130VAC, 250VAC voltage, a diode in series, the heating sheet is energized for 10 seconds under each voltage, no abnormality. [Applicable to 230VAC heating sheet]


4, thermal test: under normal voltage, the heating substrate is evenly heated, no abnormalities.


5, physical properties


Body density ≥ 3.6g/cm3


Bending strength ≥ 260MPa


6. Lead tension: the axial direction is not less than 5Kgf, and the angle between the axis and the axis is not less than 3Kgf.


7, temperature performance:


Operating temperature 100 ~ 230 ° C: The highest temperature can reach 500 ~ 700 ° C.


8, heating efficiency: up to 30 seconds to reach the working temperature.


9. Reliability: 30 minutes after installation, 30 minutes for a cycle, no abnormality after 1000 cycles.




The appearance is free from mechanical damage burrs, cracks, rust, and pollution, and the warpage is not more than 0.005 mm/mm.