PROCESS OF MANUFACTURE OF WOLFRAM SPIRAL SPRAY GUN Russian patent published in 1995 - IPC

FIELD: analytical instrumentation. SUBSTANCE: process is meant for atomic-absorption spectrophotometers with electrothermal atomization of sample. Process of manufacture of wolfram spiral spray gun provides for thermal treatment of spiral after its winding and welding to electrodes of base followed by fixing of turn part of spiral with the help of metal rod inserted inside spiral and by heating of ends of spiral to 1200-3300 C in atmosphere of protective gas by passing of electric current through spiral. EFFECT: facilitated manufacture.