Soft-magnetic composite material and process for making magnetic conduction component by using same

Abstract

This invention relates to soft magnetic compound materials, which are characterized by the following: the said materials comprise iron material, isolation agent and lubrication agent with their weight percentage as 92-99 úÑ, 0.5-5 úÑ , 0.5-3 úÑ; the said iron material is powder material, which comprise deoxidized powder, atomized iron powder, hydroxide powder and iron alloy with iron of 80-99.8úÑ; Particle distribution of 20-500; the said isolation agent adopts nanometer calcium carbonate powder or ceramics powder or magnetic oxidation power; the said lubrication is micro powder. The process comprises the following steps: mixing, shaping, solidifying and stainless processing.

Description

Technical field: [0001] The invention relates to a soft magnetic composite material, in particular to a soft magnetic composite material constituting a magnetic conduction member in an electric motor and a production process for manufacturing the magnetic conduction member from it. Background technique: [0002] With the development of society, motors and electrical appliances with magnetic conductive components have been widely used in daily life. At present, most of the magnetic components in these electrical appliances are silicon steel sheets, which are widely used in low- and medium-frequency transformers and motor cores, especially power frequency transformers. Silicon steel is characterized by having the highest saturation magnetic induction (above 2.0T) among commonly used soft magnetic materials, so when used as a transformer core, it can work at a very high working point (such as a working magnetic induction value of 1.5T). However, silicon steel also has the larg...

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Problems solved by technology

[0006] However, the above method has a relatively obvious weakness, that is, the direct cost of production is high, because:

[0007] ① Due to the irregular shape of various components, the utilization rate of materials is relatively low, and the waste produced is more;

[0008] ②, silicon steel sheet is expensive;

[0009] ③, waste is not easy to recycle

[0010] China Patent Office has published a patent application for invention "Electrical Appliances Made of Soft Magnetic Composite Materials" (application number: 03128171.0, publication number CN 1461089A). Powder, insulating agent and lubricant, the main raw material is pure iron powder, the selection of raw materials is narrow, and the price is very expensive, the market price is currently as high as 7,000 yuan/ton, and the cost is relatively high. Motors made of this raw material, The corresponding production cost of electrical appliances is also very high

At the same time, the proportion of pure iron powder in soft magnetic materials is 80%-90%. Since the content of iron plays an important role in soft magnetic materials, when the content of iron raw materials is lower than 90%, its magnetic saturation rate is far away. It cannot meet the performance requirements of the magnetic permeable component, directly affects the magnetic performance of the magnetic permeable component, and the magnetic permeability is also low, so it is difficult to adapt to the current continuously improving product quality requirements an