Powder Coating Acid Liquid Level Sensor

 

  

 

Powder coated metal parts are more durable than painted parts and are the required coating for many industrial, automotive and consumer products. During the powder coating process, fine color pigment and resin particles are electrostatically sprayed on to grounded metal parts, which are then baked to a hard smooth finish. But before any parts can be coated, they must be thoroughly cleaned to remove grease, oil, dirt, welding scales or metal oxides that would otherwise effect the finish quality. 

 

This is achieved in multiple stages consisting of degreasing, etching, de-smutting and the final phosphating of the substrate with phosphoric acid to enhance the bonding strength of the metal surface. Based on the parts finish requirements and size, diluted acid is applied by either dipping or spraying. Once rinsed and dried off, the clean parts are ready for powder coating and the oven. At this US defense contractor, an EchoPod ultrasonic level transmitter is installed in each of their phosphoric acid day tanks that are located near the ceiling to maximize floor space. The non-contact, corrosion resistant sensor was selected because of it’s industry leading 2″ dead band that enables near full capacity utilization of small tanks. Flowline is reliable level measurement.

 
 
 

 


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