Re: Nagant tactical - Verband Forum
Verfasst: Fr 4. Jun 2010, 20:48
Kannst du selber machen, ist nicht schwierig: (Phosphatieren ist im englischen ''parkerize'')
The process involves submerging the metal part into a phosphoric acid solution whose key ingredient is often zinc or manganese, with varying additional amounts of nitrates and chlorates and copper. In one of the many processes that have been developed, the solution is heated to a temperature of 190–210 °F (88–99 °C) for a period ranging between 5 and 45 minutes. A stream of small bubbles is emitted from the metal part as the process takes place; when the bubbling stops, the process is complete. In addition to this particular processing temperature, there have also been various similar Parkerizing processes developed and patented that permit using either lower temperatures (for energy efficiency) or higher temperatures (for faster processing).