JPS59181504A - Constant permeability core - Google Patents

Abstract

PURPOSE:To obtain a constant permeability within a wide operation range without providing a gap by using at least partly resin molded amorphous magnetic alloy which includes one or two kinds of iron, cobalt and nickel and one or more kinds of half-metal elements and shows the positive property of magnetic distortion. CONSTITUTION:Used here is an alloy including one or more kinds of iron, cobalt, nickel and one kind or more of half-metal elements such as boron, carbon, silicon and phosphorus, or an alloy further including oen or more kinds of transition elements of the III-VII groups in the periodic table such as yttrium, titanium, vanadium, chromium and manganese, etc., particularly at least a partly resin molded amorphous alloy which has a positive property of magnetic distortion and includes crystal nature phase of 1-50%. For example, an amorphous magnetic alloy thin belt 1 which is composed of Fe83Si3B12C2 in terms of atom% and has positive magnetic distortion is manufactured. It is then wound like a ring and it is then annealed for an hour at a temperature of 470 deg.C. Thereafter, it is impregnated with electrically insulating resin such as epoxy resin, etc. for hardening.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention i-1 relates to an amorphous magnetic alloy core with excellent constant vapor UB rate.

[Technical background of the invention and its problems J It is generally known that an amorphous alloy can be obtained by rapidly cooling a molten metal. This amorphous alloy has significantly higher magnetic properties and mechanical properties than crystallized alloys of the same composition, and is particularly useful as a soft magnetic material due to its low magnetic properties. Its use has been exhausted.

However, although this amorphous alloy has excellent soft magnetic properties, it cannot be used as a constant-velocity magnetic core, which requires almost constant magnetic permeability over a wide range of pd+. It was necessary to create a gap in a part of the core.

Conventionally, this characteristic of constant velocity magnetic property has been used in various applications such as Chikoku transformers and force conversion reactors (anode reactors)4), and the characteristics required for these are R- to high magnetic fields. Since the H curve has good linearity and DC current is still superimposed on the three windings, it is necessary to have constant velocity magnetic properties that prevent the magnetic flux density of the magnetic core from becoming saturated.

Generally, oriented silicon KI:4 plates, ferrite, etc. are known as materials used for such purposes, but they have the following problems.

[1・+l'-I F) In the case of a bow-cut i-plate, the iron core must be cut into a predetermined core shape, and the gap between the cores must be adjusted to 17. Noise is generated due to magnetostrictive lifting. In the case of ferrite, 1. )→Bundle '1 In a magnetic core formed in a link shape with low bamboo density, it is not possible to create a small gap as shown in Ail, and one part of the magnetic core is
, 1 [The disadvantages were that the area had to be increased and the amount of winding had to be increased by 1.

1. Purpose of the Invention The present invention is a constant-velocity magnetic core that overcomes these conventional problems, and can obtain constant magnetic permeability over a wide operating range without providing a gear saw. Magnetic permeability (1 core is t
Xl There is something C to offer.

[Required Mark 1 of the Invention] The present invention (f), one or two of iron, cobalt, and nickel
Alloys and units containing one or more metalloid elements such as boron, carbon, silicon, phosphorus, etc.
Kifu, cobalt 9. =・Nokelnato's ◆transfer element 1,
rJR't /ζ is yttrium for the second part of F.

Titanium, vanadium, chrono 4. Manganese and other alloys with 743, 4, 5, 6.71rMi 7g elements of the periodic table, with 41 elements having a positive magnetostriction, and 3 elements with a rating of 1 to 0%. Amorphous alloy 'i,' + (7J ll
It was molded with J-I.

In addition, in the composition used in the present invention (17), an alloy with a composition range (according to jkyofchi) shown by (Fed-)(-yCoyN1x)ton-BXa, and furthermore, in the above formula, a part of P'e is replaced by Y, 'L”i +V, (
, 'r, Mn, etc., which are converted by transition elements from groups 3 to 7 of the periodic table (however, the IK conversion amount is 0 to 015J), etc. can be praised.

Note that the amorphous alloy according to the present invention is manufactured, for example, as follows. The roller flanch method involves spraying this alloy in a molten state between rolls and rapidly rolling it, or the centrifugal quenching method in which the molten metal is quenched in a rotating tram (injection 1). It is an amorphous alloy.

In this case, by setting the cooling rate to 10'' (3/sec) or more, a completely amorphous state can be achieved.

Then that crystallization transition in this amorphous alloy? A part of crystalline material is formed by heat treatment at a temperature lower than the explosive temperature. In this case, heating at a temperature higher than the crystallization transition temperature 1-5
However, although some crystals are formed, it becomes completely crystalline within a few seconds, so it requires skill to control the temperature. By adjusting the cooling rate to 10-1o'' (+/sec) without changing to a completely amorphous state, a part of the quality can be formed. It is also possible to do this, but in this case as well, there is a problem in that it requires skill and skill.

The proportion of crystalline phase in this amorphous alloy is 1 to 50%
The hope is 2. If the ratio of crystalline phase is limited to a certain range, it is extremely difficult to obtain a constant rate in a wide range of motion without creating gaps in the case of a completely amorphous state. That's funny.

The crystalline phase exceeded 50. (・ξ(Konau.

In the present study, there are 11 crystalline phases mentioned above, and a ring-shaped amorphous La polymerization in which 1dφ is (1Po・□d). At least -H in the core
By converting ats into resin, 4j, j; q
It is characterized by the fact that 1 bow core is obtained. [Effects of the present invention] 1. Although the core is a ring-shaped core, it has a constant magnetic flux of 1, 1 and 1 over a wide operating range without leaving any gaps, and 1 has a crystalline phase. It would be even more effective if the temporality could be arbitrarily adjusted to R1'' by adjusting the ti of 1^ for a long time7).

i/ζ, +Hc using an amorphous magnetic alloy, that't!
J'lit upper Huehuerite can also have a high f8 flux density, and since it has a crystalline phase, magnetostriction is reduced, creating a gap, which has the advantage of reducing even one sound due to magnetostrictive vibration. Wow.

Still 1. +; In addition to the effect of obtaining constant velocity 7iB properties by using the tJ finger mold, it also has the advantage of being able to fully cope with the problems that arise when an amorphous R magnetic alloy becomes brittle due to the inclusion of a crystalline phase, which may cause problems in JIv handling. There is.

[Embodiments of the invention]

The present invention will be described above with reference to the drawings.

[尭l・i+1例1] The atom is composed of Fe53Si3B+2C2, and the + and B strains are positive. Amorphous magnetic alloy ribbons of 10 sizes were manufactured.

Next, as shown in Figure 1, it was wound into a ring shape with an inner diameter of 40ml, and annealed for 1 hour at a temperature of 470" (7y0). At this time, in order to obtain the proportion of the crystalline η phase, the As a result, about 8 crystalline phases were found.

Next, the thin ribbon wound into a ring shape is impregnated with an electrically insulating resin such as epoxy resin, and the resin is cured by a conventional method. Epoxy I4 was rolled around in a leaky manner, and the thin ribbon was fixed as a whole. The DC magnetization curve at this time is shown in Figure 2.

For comparison, the DC magnetization curve before the sphere resin mold is shown in Figure 2, and the DC magnetization curve in the completely amorphous state is also shown in the second diagram.
This is shown in curve C in the figure. From FIG. 2, in the DC magnetization curve (c) in a completely amorphous state, no constant velocity magnetic property is observed at all. The direct current (1d curve (b) before resin molding shows constant velocity (heaviness), but it is insufficient for widespread operation, and the direct current magnetization curve (a) after resin molding also shows As can be seen, it is clear that the qi vi6a efficiency has been dramatically improved.

[Example 2J Atom (Fe, g2co, 03Nb, 05) 86s
i2B] 2 with positive magnetostriction and a medium lOx7m amorphous permanent alloy ribbon, wound into a ring shape with an inner diameter of 4Q:rrni and annealed at a temperature of 7.430'O for 1 hour, The crystalline phase was made to be about 10-.

Thereafter, a constant velocity magnetic core was produced in the same manner as in Example 1. The DC magnetization curve at this time is shown in FIG. 3a. For comparison, the DC magnetization curve before resin molding is also shown in Figure 3, and the DC magnetization curve in a completely amorphous state is also shown in Figure 3C. From FIG. 3, it can be seen that the same results as in Example 1 are obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a magnetic core according to the method of the present invention. FIG. 2 is a DC single city curve diagram based on Example 1. Figure 3 shows Example 2
h, fLifI flow magnetization curve β diagram. 1...Amorphous magnetic alloy ribbon Figure 1 Figure 2

Claims (1)

[Claims] (11) An amorphous magnetic alloy containing one or two quantities of iron, cobalt, and nickel, and one or more semimetallic elements, and exhibiting a positive magnetostriction property. , 1 to 50% of the crystalline phase has been cured, and at least a portion of the constant velocity & J ratio magnetic core is molded with resin. A non-crystalline η magnet containing one or more of the transition metal elements of Groups 3 to 7 of the Table of Laws and 12I! or two or more of the semimetal elements, and exhibiting a positive magnetostriction property. A constant-velocity magnetic core made of an alloy, having a crystallinity of 1 to 50 degrees, and having at least a portion molded with a resin.