METHOD FOR RESTORING RUBBER MIXER SEMICHAMBERS

摘要

FIELD: restoration of worn surfaces, namely semichambers of rubber mixers. ^ SUBSTANCE: method comprises steps of placing on restored part metallic cover plate compensating wear; fusing cover plate along its whole thickness by annular or lengthwise seams at predetermined pitch with use of plasma arc and additional arc. The last burns between melt metal and alloy powder wire that is fed behind plasma arc. Spacing between said arcs is selected in range consisting of (0.4 - 0.6) of length of melt metal bath. ^ EFFECT: possibility for providing seam root minimally alloyed with powder wire components at keeping wear resistance of remaining metal of seam. ^ 2 dwg