SU881146A1 - Magnetic alloy - Google Patents

Description

one

The invention relates to metallurgy, and more specifically to the manufacture of magnetically solid materials used in electrical engineering and instrument making.

Known magnetic alloy 13next chemical composition, wt.%:.

11-12

Aluminum 28-28,5

Nickel 7.8-8.5

Copper 0.005-0.08

Calcium 0.005-0.05

Magnesium

Rare earth

0.005-0.1

metals Else.

Iron

The disadvantage of this alloy is a low coercive force (47 kA / M).

The closest to the invention in technical essence and the achieved result is a magnetic alloy 23 of the following chemical composition, wt.%:

Aluminum13-16

Nickel32-35

1To0,4-0,5

Silicon1-1.5

Iron The Rest, The disadvantage of such an alloy is a low coercive force {56 kA / M).

The purpose of the invention is to increase the cohesive power.

The goal is achieved by the fact that an alloy containing aluminum, nickel, titanium, silicon and iron, additionally contains rare earth metals in the following ratio of components, wt.%:

Aluminum13-15

Nickel32-34

Titan0,6-1, 5

Silicon0.8-1.3

Rare earth

0,005-0,2

Metals Else

Iron Example 6 of the induction furnace, casting method based on melted models, magnets with a mass of 0.1 kg were manufactured.

3.88

In tab. 1 shows the composition of the smelted magnets, wt.%.

The magnets are heat treated according to the mode: heating up to 1200 ° C, holding for 1.5 hours, cooling to 600 ° C at a speed of 100-200 rpm, then tempering 2-4 hours.

In tab. 2 shows the magnetic properties of the proposed alloy in comparison with the known.

 Hi results it follows that the proposed alloy has

U64

in comparison with an iv alloy with a higher coercive value. Increased coercive Si value and maximum magnetic energy.

J value 4-А 2 allows using magnets from the proposed alloy in magnetic systems of small-sized engines and generators with increased aazors. The increased gap, in turn, makes it possible to increase manufacturability and reduce the laboriousness of manufacturing magnetic systems.

Proposed

one

2

3

four

five

Famous

(GOST 17809-72)

Table I

table 2

4.2 4.1 4.2 4.2 4.0

Claims (2)

4.0 588 Claim of the invention Magnetic alloy containing nickel, aluminum, titanium, silicon and iron, characterized in that, in order to increase the coercive force. it additionally contains rare-earth metals in the following ratio of components, wt.%: Aluminum 13-15 E nickel32-34 Titanium 0.6-1.5 1146.6 Silicon 0.8-1-1.3 Rare-earth metals 0,005-0,200 Iron Else 5 Information sources accepted into account in examination 1, USSR Copyright Certificate No. 667606, cl. C 22 C 38/16, 1978. to 2. GOST 17609-72. Materials of hard magnetic cast grades and technical requirements.