| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: powder composition, containing mixture of magnetically-soft powder of iron or on base of iron, particles of which are surrounded with electric insulating non organic coating and 0.05 to 1.5 wt % of organic lubricant not containing metal and with temperature of evaporation less, than temperature of coating decomposition, is moulded in a die. A moulded ingot is pushed from the die; lubricant is removed by heating in not-reducing atmosphere to temperature above temperature of lubricant evaporation and below temperature of decomposition of non organic coating. Further there is performed heat treatment at temperature between 300C and 600C in water steam. ^ EFFECT: magnetically-soft composite items possess lateral rupture strength 100 MPa, magnetic permeability 700 and losses in core at 1 Tl and 400 Hz. ^ 25 cl, 2 dwg, 8 tbl, 8 ex |
