GRWAY® Limiting Current Heating Plate For Automotive Oxygen Sensor are produced by implementing ceramic lamination processes. Due to the compactness, high power and rapid heating speed .Ceramic Heater can provide higher reliability than ever before. Mainly applications include use as innovative types of heaters in the automotive, medical and semiconductor industries.
1.Product matrix material use white alumina ceramic
a) Density≥3.94 g/cm3;
b) Strength>500 MPa.
2.Electrolyte material use YSZ electrolyte ceramic
a) Density≥5.75 g/cm3;
b) Strength>400 MPa;
c) Aging test: 230℃×50 h.
3.Electrodes, heaters, leads, pads all use Pt materials (Choose different Pt content material according to the function)
After the assembly of the product, then test the leak rate under the temperature of 25℃±10℃and the air pressure of 3.4 bar, and the engine bench test is carried out under the condition that the leakage rate is less than 0.2 cm3 / min.
Engine Bench Test |
New Oxygen Sensor |
|
Exhausting gas Temperature |
350℃ |
800℃ |
λ=0.95 Lambda = 0.95 , sensor voltage |
800 mV±65 mV |
700 mV±65 mV |
λ=1.05 Lambda = 1.05 , sensor voltage |
50 mV±30 mV |
50 mV±30 mV |
Response Time600 mV~300 mV |
<150 ms |
<150 ms |
Response Time300 mV~600 mV |
<100 ms |
<60 ms |
Internal Impedance |
≤500Ω |
|
Light-off Time |
≤12 s |
|
Heater Current |
0.5 A±0.1 A |
Heater resistance at room temperature:9Ω/6Ω/13Ω。
Heater rated voltage:12V±14 V。
The heater steady-state current when loaded a 13.5 V voltage:0.5 A±0.1 A。
Insulation resistance between Heater Pad and Electrode Pad:>100 MΩ。
Heater 1100℃thermal cycling:20 V,3 min on,1 min off,>4500 times。
Heater Pressure:32 V,500 ms,10 time)。
The ceramic core B structure as show in Figure 1, the ceramic core includes five layers, and they are protective layer, electrolyte layer, air layer, base layer and heating layer. The protective layer system includes electrode pad, porous protective layer and aluminum oxide layer. The electrolyte layer system includes inner / outer electrode, YSZ electrolyte layer. And the airway layer consists of airway, alumina layer. The base layer has a number of alumina layers (Can adjust based on customer requirements on the product thickness). The heater layer system includes heater, heater pad and oxidation Aluminum layer.
Item |
Environmental Requirements |
Standard Values |
Test Method |
Activation Time |
Temperature: 23℃±3℃ |
≤5 s |
The voltage of 450 mV was loaded to both ends of the electrode through a 1 MΩresistor. And record the output voltage when 13.5 V was loaded. Test the time when the output voltage dropped to 300 mV by the acquisition card. |
Item |
Environmental Requirements |
Standard Values |
Test Method |
Electrical Signal Test |
No wind environment |
Internal and external Electrode Current>100μA |
Under air atmosphere, a DC source was used to charge 13.5 V voltage to the heater, and 450 mV voltage was loaded between the internal and external electrodes (the internal electrode was connected to the positive electrode), and observe the current value between the internal and external electrodes. |
Maximum Temperature |
No wind environment |
770℃±50℃ |
The maximum temperature of the heater at steady state was measured by a thermal imager. |
350℃Heating up Time |
Temperature:23℃±3℃ |
≤7 s |
Test the time needed for the heater heating from room temperature to 350℃by thermal imager. |
Cracking Test |
None |
No Cracks |
Test the porcelain core crack situation through the magenta. |
Exterior |
None |
The surface without cracks, no bubbles, no cracks and other defects |
Visual inspection |
Dimensions |
None |
(58.6 mm±0.5 mm)×(4.4 mm±0.1 mm)×(1.25 mm±0.1 mm) |
Caliper measurement |
Conventional operating temperature range: 350℃~850℃
Maximum continuous operating temperature(250 h):1000℃
Should be used in accordance with the provisions of the GB 17930 gasoline and meet the GB 18351 requirements of the vehicle ethanol gasoline.
The suitable packing should be taken to avoid the breakage and contamination during the shipment.
Fast International Express Delivery such as DHL,TNT,FEDEX, UPS ect.
Xiamen Green Way Electronic Technology Co., Ltd. is a professional manufacturer of aluminum ceramic heater elements focusing on product design, R&D, production and sales. With over 10 years' experience, we produce kinds of ceramic heaters which are widely used in soldering iron, soldering station, oxygen sensor, instant water heater, 3D Printer, E-cigarette, biomass pellet burners and so on.
With professional R&D team, advanced facilities and strictly on-line production quality control system, we are committed to providing high quality products with perfect service.
1.What information you need to know If we want to do order a heating element?
Good question. Please give us information as clear as possible such as shape,length,diameter,resistance, heating zone and working temperature requirement ect.
2.What is your MOQ?
There is no MOQ for already ceramic heater models
You can buy any quantity you want.