Method for ion nitriding of products from metals and their alloys

摘要

the object of the application is the way in which the machined products surrounding an additional electrode (d) and electrically isolates the housing from (of) furnacewhat links them with negative pole voltage ionizing, whose positive pole is connected to the housing (a) furnacewhat produces around (w1 and w2) of vacuum lower than 1 mbar and heats up to temperatures from 400u00b0c to 600u00b0c, then the furnace is known, reactive gas, for example nitrogenor a mixture of nitrogen with hydrogen in the pressure range from 1.0 to 10 mbar, between machined products and housing (about) the furnace is fixed or pulsed ionizing voltage of 400 v (r) - 800 v,and the duration of the process is determined experimentally.an additional electrode (d) is connected with the positive pole of secondary discharge voltage (rs) and the secondary discharge (negative pole) furnace with this voltage (uw) discharge secondarythe voltage value (rs) discharge secondary regulates during the process ranging from 50 to 350 v v so as to maintain the temperature azotowania founded.ionizing voltage (kass) and voltage (rs) are advantageously secondary discharge the same frequency and are phase synchronised.(d) the discharge electrode advantageously surrounds the secondary from the housing (about) the isolated from her and housing (about) the reflector (s) and between the electrode (d) and odbu0142yu015bnikie secondary dischargem (s) placed the fabric (t) as high electrical and thermal insulating properties.