摘要 |
<p>A hot runner nozzle heater is provided that includes a sleeve defining a slot extending along a length of the sleeve. A first dielectric layer is disposed over an outer surface of the sleeve, and a resistive element layer is disposed over the first dielectric layer, wherein the resistive element layer defines a resistive circuit pattern that is preferably formed by a laser trimming process. A pair of terminal leads are secured to a portion of the resistive element layer thus defining a termination area, and the termination area is positioned proximate the slot and away from the proximal end and the distal end of the sleeve. A second dielectric layer is disposed over the resistive element layer but not over the termination area, a third dielectric layer is disposed over the termination area, and a protective layer disposed over the second dielectric layer and the third dielectric layer.</p> |
申请人 |
WATLOW ELECTRIC MANUFACTURING COMPANY |
发明人 |
RUSSEGGER, ELIAS;SCHEFBANKER, GERHARD;ANTOSCH, GERNOT;POSCHL, WOLFGANG;LANHAM, CHRISTOPHER C.;MCMILLIN, JAMES;MCDOWELL, WILLIAM A., III;FENNEWALD, KENNETH F.;BOLDT, ALLEN;ZIMMERMANN, FREDERIC;LEHNERT, REINHARDT;PTASIENSKI, KEVIN |