2results about How to "Expand the allowable range" patented technology

This invention discloses a hot pressing method for forming amorphous soft magnetic powder, wherein the amorphous powder is granulated and heat-treated under a protective atmosphere to a specific temperature. T x -150℃ to T x -50℃ and hold for 5–90 minutes; then transfer the powder to a mold, and... T g to T x High-density molded bodies are obtained by hot pressing for 30–180 seconds at a gauge pressure of 100–600 MPa within a temperature range. After sintering, high-density amorphous soft magnetic powder cores can be obtained. This method significantly reduces the gauge pressure, increases the relative density, improves the magnetic permeability, and reduces iron loss. Furthermore, the process is highly adaptable, can be easily modified from conventional powder metallurgy equipment, and offers high controllability, making it suitable for the industrial-scale preparation of high-performance amorphous soft magnetic materials.

A method for extracting platinum and palladium from silver electrolytes envisages the dissolution of a starting material, the sorption extraction of platinum metals from the silver electrolyte using an anion exchange resin, and desorption with an ammonia solution. The process of the sorption extraction of platinum and palladium from a silver electrolyte solution is carried out in parallel with a process of electrorefining silver. The silver electrolyte is circulated through a fixed sorbent bed at a rate of 1-15 column volume / hour, wherein the sorbent is saturated until a set critical value for the amount of palladium in the silver electrolyte is registered. The process can be carried out in an automatic mode with the photometric measurement of the concentration of palladium, wherein the set critical value for the amount of palladium in the silver electrolyte is registered up to a value of between 0 and 200 mg / l. The result is an increase in the productivity of a process of obtaining high-purity cathodic silver by virtue of an increase in the density of the current in the electrorefining process and a widening of the range of the permissible amounts of platinum and palladium in the anodic feedstock.