METHOD AND SYSTEM FOR PROCESSING STAINLESS STEEL STRIP, PRIMARILY FOR ETCHING Russian patent published in 2019 - IPC C21D8/02 C23G1/08 C23G3/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to steel strip processing method, first of all, steel strip treatment by etching by treatment liquid in treatment plant, wherein treatment unit comprises treatment bath with irrigation section and submersible section and common catching agent for treatment liquid, wherein the steel strip consists of stainless steel and is a continuous steel strip oriented substantially horizontally both in its longitudinal and transverse directions, wherein the steel strip has an upper surface and a lower surface. Method comprises continuous movement of steel strip through treatment plant in direction of movement, wherein direction of movement parallel to longitudinal direction of steel strip, wherein at the first step during the steel strip in the irrigation section of the treatment plant, the treatment liquid is sprayed onto the upper surface of the steel strip and on the steel strip lower surface, at the second step when the steel strip is located in the immersion section of the treatment plant, the steel strip is immersed into the treatment liquid, wherein during treatment of the steel strip, the treatment fluid is continuously pumped from the common trap and through the irrigation section, and through submersible section of treatment plant, wherein spraying treatment liquid on upper and lower surfaces of steel strip is performed using irrigation nozzles.

EFFECT: technical result consists in possibility of providing method implementation relatively quickly, with high quality and environmentally friendly.

14 cl, 3 dwg