Coating apparatus and method for platinum electrode in oxygen sensor
An oxygen sensor and coating device technology, applied in the field of coating devices for platinum electrodes in oxygen sensors, can solve the problems of low efficiency, high cost, poor accuracy, etc., achieve accurate positioning, reduce wire breakage rate, and avoid platinum waste. Effect
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[0033] The core idea of the present invention is: first prepare the pure platinum electrode slurry, stir it evenly, put it into the syringe of the micro-dispenser, and then control the needle to enter the sleeve-shaped zirconia matrix of the oxygen sensor through the PLC controller and the micro-controller Inside, and from the inside to the outside, two opposite linear platinum electrodes are coated on the inner surface of the sleeve-shaped zirconia substrate of the oxygen sensor. After the coating is completed, the zirconia substrate is placed in a high-temperature sintering furnace for high-temperature sintering.
[0034] In order to illustrate the idea and purpose of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0035] The invention provides a coating device for a platinum electrode in an oxygen sensor and a method for coating a platinum electrode in an oxygen sensor by...
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