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METHOD OF MANUFACTURING PRODUCTS OF SOFT MAGNETIC ALLOY BASED ON IRON-COBALT EQUAL CHANNEL ANGULAR PRESSING

机译:铁钴均等通道角挤压的软磁合金产品制造方法

摘要

FIELD: metallurgy industry.;SUBSTANCE: method of manufacturing products of a soft magnetic alloy based on iron-cobalt equal channel angular pressing comprises sandblasting of the surface of preforms, etching in a mixture of sulphuric acid, hydrofluoric acid and nitric acid at a ratio in g/l: 550-750, 250-300, 250-300, activation of the preform surface in the hydrochloric acid solution with the concentration of at least 200 g/l, formation on the surface of the preform of a galvanic intermediate layer of nickel with the thickness of 3-5 microns, formation of the galvanic plastic layer of copper with the thickness of 80-100 microns and equal channel angular pressing of the preforms at a pressure of 1000 MPa in the temperature range of 450-500°C.;EFFECT: significant reduction in the electric potential of the surface of samples, which reduces their oxidation and enables to increase the number of passages during pressing.;1 dwg, 1 tbl, 2 ex
机译:领域:冶金工业;物质:基于铁钴等通道角挤压的软磁合金产品的制造方法,包括对预成型坯的表面进行喷砂处理,以一定比例的硫酸,氢氟酸和硝酸的混合物进行蚀刻单位:g / l:550-750、250-300、250-300,在浓度至少为200 g / l的盐酸溶液中激活预成型件表面,在预成型件表面上形成电化中间层厚度为3-5微米的镍,形成厚度为80-100微米的铜电塑料层,并在450-500°C的温度范围内以1000 MPa的压力对预制件进行等通道角压制C .;效果:显着降低样品表面的电势,从而减少其氧化并增加压制过程中的通过次数。; 1 dwg,1 tbl,2 ex

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