CN104245993A - Amorphous alloy thin strip - Google Patents
Amorphous alloy thin strip Download PDFInfo
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- CN104245993A CN104245993A CN201380014114.5A CN201380014114A CN104245993A CN 104245993 A CN104245993 A CN 104245993A CN 201380014114 A CN201380014114 A CN 201380014114A CN 104245993 A CN104245993 A CN 104245993A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
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Abstract
The invention provides an amorphous alloy thin strip which is composed of Fe, Si, B, C and unavoidable impurities, and wherein: the amount of Si is from 8.5 atom% to 9.5 atom% and the amount of B is 10.0 atom% or more but less than 12.0 atom% when the total of Fe, Si and B is taken as 100.0 atom%; and the amount of C relative to the above-mentioned total of 100.0 atom% is from 0.2 atom% to 0.6 atom%. This amorphous alloy thin strip has a thickness of 10-40 <mu>m and a width of 100-300 mm.
Description
Technical field
The present invention relates to amorphous alloy ribbon.
Background technology
Amorphous alloy ribbon, due to the characteristic of its excellence, is expected to be considered Industrial materials in a lot of purposes.
Wherein, the Fe system amorphous alloy ribbon being principal constituent with Fe (iron) (such as, with the Fe-B-Si system amorphous alloy ribbon of Fe (iron) for principal constituent and also containing B (boron) and Si (silicon)) due to the reason that iron loss is low, saturation magnetic flux density is high, be used as the material of the magnetic core of transformer etc.The stacking factor of described Fe system amorphous alloy ribbon, generally lower than orientation electromagnetic steel plate, thus seeks high stacking factor.If stacking factor is low, then when making the magnetic core of identical internal-and external diameter, total magnetic flux, inductance all reduce, and have to like this increase magnetic core, increase number of stitches, thus in the miniaturization of machine, be a problem in cost.
In order to make the stacking factor of Fe system amorphous alloy ribbon improve, carry out various research so far.
Such as, as the manufacture method of the Fe system amorphous alloy ribbon for being shown high stacking factor by single-roller method manufacture, there will be a known the method (for example, referring to Japanese Unexamined Patent Publication 2006-281317 publication, Japanese Unexamined Patent Publication 9-216036 publication and Japanese Unexamined Patent Publication 2007-217757 publication) of the manufacturing condition such as condition of surface of the atmosphere around adjustment melt nozzle front end and the distance on cooling roller surface, the temperature of cooling roller, the circumferential speed of cooling roller, cooling roller, ejection pressure that melt nozzle produces, cooling roller.
Summary of the invention
the problem that invention will solve
But, the method improved for such as being made to above-mentioned prior art the stacking factor of strip by the adjustment of manufacturing condition, when manufacturing amorphous alloy ribbon continuously, exist and be difficult to the situation maintaining manufacturing condition (condition of surface etc. of such as cooling roller) for a long time.In addition, there is the situation that the magnetic propertiess such as magneticflux-density reduce in the method making the stacking factor of strip improve for the adjustment by manufacturing condition.
Therefore, as the method making the stacking factor of Fe-B-Si system amorphous alloy ribbon improve, except the adjustment of above-mentioned manufacturing condition, consider the method for self composition of adjustment Fe-B-Si system amorphous alloy ribbon.
According to the research of the present inventor, understand fully by adding C (carbon) and make the stacking factor of strip improve in the composition of Fe-B-Si system amorphous alloy ribbon.The result of further research shows, relative to composition in Si measure many Fe-B-Si system amorphous alloy ribbons add C too much time, strip has the tendency become fragile.
In addition, be also important for maintaining high magneticflux-density amorphous alloy ribbon.
Therefore, problem of the present invention is to provide the amorphous alloy ribbon that stacking factor is excellent, brittleness (fragility) is suppressed, high magneticflux-density obtains maintenance.
for the scheme of dealing with problems
Concrete means for solving aforementioned problems are as described below.
< 1 > amorphous alloy ribbon, it contains Fe, Si, B, C and unavoidable impurity, when being 100.0 atom % with the total amount of Fe, Si and B, Si amount is that 8.5 atom % ~ 9.5 atom %, B amounts are 10.0 more than atom % and are less than 12.0 atom %; Measuring relative to aforementioned total amount 100.0 atom %, C is 0.2 atom % ~ 0.6 atom %; Thickness is 10 μm ~ 40 μm, width is 100mm ~ 300mm.
The amorphous alloy ribbon that < 2 > records according to < 1 >, wherein, aforementioned C amount is 0.3 atom % ~ 0.6 atom %.
The amorphous alloy ribbon that < 3 > records according to < 1 > or < 2 >, wherein, aforementioned B amount is 10.0 atom % ~ 11.5 atom %.
The amorphous alloy ribbon that < 4 > records any one of < 1 > ~ < 3 >, wherein, stacking factor is more than 88%.
The amorphous alloy ribbon that < 5 > records any one of < 1 > ~ < 4 >, wherein, when being 100.0 atom % with the total amount of Fe, Si and B, Fe amount is 79.0 atom % ~ 80.0 atom %, Si amounts be 8.5 atom % ~ 9.5 atom %, B amounts is 10.5 atom % ~ 11.5 atom %.
The amorphous alloy ribbon that < 6 > records any one of < 1 > ~ < 5 >, it is manufactured by single-roller method.
the effect of invention
Adopt the amorphous alloy ribbon that the present invention can provide stacking factor excellence, brittleness (fragility) is suppressed, high magneticflux-density obtains maintenance.
Accompanying drawing explanation
Fig. 1 is the schematic section that generality display is suitable for manufacturing a kind of embodiment of the amorphous alloy ribbon manufacturing installation of amorphous alloy ribbon of the present invention.
Fig. 2 is the schematic diagram schematically showing during brittleness is evaluated the sample used.
Fig. 3 is the schematic diagram of sample strip after schematically showing the tearing of brittleness evaluation and tear line.
Embodiment
In this specification sheets, use " ~ " numerical range of representing to refer to and be respectively with the numerical value recorded before and after " ~ " scope that minimum value and maximum value contain.
Below, amorphous alloy ribbon of the present invention is described in detail.
Amorphous alloy ribbon of the present invention (hereinafter also referred to as " strip ") is containing Fe, Si, B, C and unavoidable impurity, when being 100.0 atom % with the total amount of Fe, Si and B, Si amount is that 8.5 atom % ~ 9.5 atom % (i.e. 8.5 more than atom % and 9.5 below atom %), B measure and be 10.0 more than atom % and be less than 12.0 atom %; It is 0.2 atom % ~ 0.6 atom % (i.e. 0.2 more than atom % and 0.6 below atom %) relative to aforementioned total amount 100.0 atom %, C amount; Thickness be 10 μm ~ 40 μm (namely more than 10 μm and less than 40 μm), width is 100mm ~ 300mm (i.e. more than 100mm and below 300mm).
According to the research of the present inventor, understand fully by being principal constituent with Fe and adding C (carbon) in the composition of Fe-B-Si system amorphous alloy ribbon (hereinafter also referred to as " Fe-B-Si system amorphous alloy ribbon ") also containing B and Si to make the stacking factor of strip improve.Trace it to its cause as follows: by adding C, the raw material of Fe-B-Si system amorphous alloy ribbon and the mobility of alloy molten solution promote, and the flatness on the surface of the strip manufactured by result improves.
In addition, the result that the present inventor studies further shows, many (specifically relative to Si amount in composition, Si amount when being 100.0 atom % with the total amount of Fe, Si and B is 8.5 more than atom %) Fe-B-Si system amorphous alloy ribbon when adding C too much (specifically, relative to the total amount 100.0 atom % of Fe, Si and B, when C amount is more than 0.6 atom %), strip becomes fragile.
Therefore, the present inventor is the composition of the Fe-B-Si system amorphous alloy ribbon of 8.5 more than atom % for Si amount when being 100.0 atom % with the total amount of Fe, Si and B, C is added in the mode being 0.2 atom % ~ 0.6 atom % relative to the amount of aforementioned total amount 100.0 atom %, obtain thus suppressing brittleness (fragility) and improve stacking factor but also the understanding of high magneticflux-density can be maintained, completing the present invention based on this understanding.
That is, the amorphous alloy ribbon that the present invention can provide stacking factor excellence, brittleness (fragility) is suppressed, high magneticflux-density obtains maintenance is adopted.
In addition, adopt the present invention to be 0.6 below atom % by making aforementioned C measure, thus the deterioration year in year out of the amorphous alloy ribbon that can produce when adding C can be suppressed.
As mentioned above, amorphous alloy ribbon of the present invention shows high stacking factor (such as, stacking factor is more than 86%).
The stacking factor of amorphous alloy ribbon of the present invention is preferably more than 88%, is more preferably more than 89%.
In the present invention, " stacking factor " refers to the stacking factor (%) measured according to ASTM A900/A900M-01 (2006).
It should be noted that, empirically know as follows: when the stacking factor using aforementioned assay method to record is the magnetic core of amorphous alloy ribbon making transformer of 88%, fastening meeting during making causes stacking factor to have increased slightly, and the stacking factor of thus made magnetic core is shown as 88 ~ 90%.
Below, the composition for amorphous alloy ribbon of the present invention is described.
In amorphous alloy ribbon of the present invention, measuring (hereinafter also referred to as " C amount ") relative to the C of the total amount 100.0 atom % of Fe, Si and B is 0.2 atom % ~ 0.6 atom %.
When C amount is more than 0.6 atom %, strip becomes fragile.In addition, when C amount is more than 0.6 atom %, the deterioration year in year out that there is amorphous alloy ribbon is promoted until time that crystallization occurs situation about shortening.
On the other hand, in the present invention, C amount is that 0.2 more than atom % to represent in strip in fact containing C, makes the stacking factor of strip improve thus.
From the viewpoint making the stacking factor of strip improve further, C amount is preferably 0.3 atom % ~ 0.6 atom %.
In amorphous alloy ribbon of the present invention, Si amount (hereinafter also referred to as " Si amount ") when being 100.0 atom % with the total amount of Fe, Si and B is 8.5 atom % ~ 9.5 atom %.
Amorphous alloy ribbon of the present invention is 8.5 more than atom % due to Si amount, can expect the effect of the deterioration year in year out suppressing strip.Si amount is more preferably 9.0 more than atom %.
But, show as above-mentioned, relative to Si amount be the Fe-B-Si system amorphous alloy ribbon of 8.5 more than atom % (especially 9.0 more than atom %) add C too much time, strip has the tendency become fragile.About this point, amorphous alloy ribbon of the present invention is 0.6 below atom % by making C measure, thus significantly can suppress the brittleness of strip.
On the other hand, when Si amount is more than 9.5 atom %, Fe amount relatively tails off, and thus saturation magnetic flux density reduces.In addition, when Si amount is more than 9.5 atom %, amorphous forming ability has the tendency of reduction.
In amorphous alloy ribbon of the present invention, B amount (hereinafter also referred to as " B amount ") when being 100.0 atom % with the total amount of Fe, Si and B is 10.0 more than atom % and is less than 12.0 atom % (being preferably 10.0 atom % ~ 11.5 atom %).
When B amount is less than 10.0 atom %, Tc step-down, the stability of amorphous phase is impaired.
On the other hand, when B amount is 12.0 more than atom %, raw materials cost increases, thus not preferred.Therefore, B amount is less than 12.0 atom %, is preferably 11.5 below atom %.
In addition, the viewpoint improved further from making amorphous forming ability, B amount is preferably 10.5 more than atom %, is more preferably 11.0 more than atom %.
In amorphous alloy ribbon of the present invention, as long as Fe amount (hereinafter also referred to as " Fe amount "), Si amount when being 100.0 atom % with the total amount of Fe, Si and B is 8.5 atom % ~ 9.5 atom % and B amount is 10.0 more than atom % and is less than 12.0 atom %, just there is no particular limitation.
Fe amount is specifically for more than 78.5 atom % and be 81.5 below atom %, be preferably 79.0 atom % ~ 81.5 atom %, be more preferably 79.0 atom % ~ 81.0 atom %, more preferably 79.0 atom % ~ 80.5 atom %, be particularly preferably 79.0 atom % ~ 80.0 atom %.
When Fe amount is 81.0 below atom %, Tc raises further, and thermostability improves further.
In the present invention, Fe measures, the preferably combination of Si amount and B amount is Fe amount is that 79.0 atom % ~ 81.5 atom % (are more preferably 79.0 atom % ~ 81.0 atom %, more preferably 79.0 atom % ~ 80.5 atom %), Si amount is 8.5 atom % ~ 9.5 atom %, B amount is 10.0 more than atom % and is less than the combination of 12.0 atom % (being preferably 10.0 atom % ~ 11.5 atom %), preferred combination is Fe amount is 79.0 atom % ~ 80.0 atom %, Si amount is 8.5 atom % ~ 9.5 atom %, B amount is the combination of 10.5 atom % ~ 11.5 atom %, particularly preferred combination is Fe amount is 79.0 atom % ~ 80.0 atom %, Si amount is 9.0 atom % ~ 9.5 atom %, B amount is the combination of 11.0 atom % ~ 11.5 atom %.
In addition, amorphous alloy ribbon of the present invention also contains unavoidable impurity except above-mentioned element (Fe, Si, B and C).Wherein, unavoidable impurity refer to amorphous alloy ribbon or as the mother alloy of its raw material or the manufacturing process of alloy molten solution in the impurity that cannot invariably be mixed into.As aforementioned unavoidable impurity, include, for example out Mn, S, Cr, P, Ti, Ni, Al, Co, Zr, Mo, Cu etc.
But the determination of amorphous alloy ribbon physical property is arranged by Si, B, the disturbance degree of above-mentioned impurity is little.
In addition, the thickness (thickness of slab) of amorphous alloy ribbon of the present invention is 10 μm ~ 40 μm.
When aforementioned thicknesses is less than 10 μm, there is the tendency of the physical strength deficiency of strip.From this viewpoint, aforementioned thicknesses is more than 10 μm, is preferably more than 15 μm, is more preferably more than 20 μm.
On the other hand, when aforementioned thicknesses is more than 40 μm, exists and be difficult to the stable tendency obtaining amorphous phase.From this viewpoint, aforementioned thicknesses is less than 40 μm, is preferably less than 35 μm, is more preferably less than 30 μm.
In addition, the width of amorphous alloy ribbon of the present invention is 100mm ~ 300mm.
When foregoing width is more than 100mm, can be suitable for making practical transformer.From this viewpoint, foregoing width is more than 100mm, is more preferably more than 125mm.
On the other hand, when foregoing width is more than 300mm, becomes and be difficult to obtain the homogeneous strip of width thickness, due to shape heterogeneity, there is embrittlement in part, magneticflux-density (B1) reduces.From these points of view, foregoing width is below 300mm, is more preferably below 275mm.
For the manufacture method of amorphous alloy ribbon of the present invention, there is no particular limitation, such as, can use the known methods such as liquid quench method (single-roller method, double roller therapy, centrifuging etc.).
Wherein, single-roller method is that producing apparatus is fairly simple and can stablize the manufacturing process of manufacture, has excellent industrial productivity.
Fig. 1 is the schematic section that generality display is suitable for manufacturing a kind of embodiment of the amorphous alloy ribbon manufacturing installation of amorphous alloy ribbon of the present invention.
The amorphous alloy ribbon manufacturing installation 100 shown in Fig. 1 is the amorphous alloy ribbon manufacturing installations utilizing single-roller method.
As shown in Figure 1, amorphous alloy ribbon manufacturing installation 100 possesses: crucible 20, and it possesses melt nozzle 10; And cooling roller 30, its surface is relative with the front end of melt nozzle 10.Fig. 1 shows amorphous alloy ribbon manufacturing installation 100 along cross section when cutting off relative to the axis of cooling roller 30 and the vertical face of the width (this both direction is identical) of amorphous alloy ribbon 22C.
Crucible 20 has the internal space of the alloy molten solution 22A of the raw material that can hold as amorphous alloy ribbon, the liquation fluid communication in this internal space and melt nozzle 10.Thereby, it is possible to utilize melt nozzle 10 the alloy molten solution 22A be contained in crucible 20 to be expelled to cooling roller 30 (representing discharge direction and the circulating direction of alloy molten solution 22A in Fig. 1 with arrow Q).It should be noted that, crucible 20 and melt nozzle 10 can be that one is formed, and also can independently form.
The radio-frequency coil 40 be configured with at least partially as heater means around crucible 20.Thus, make it possible to the crucible 20 of the state of the mother alloy receiving amorphous alloy ribbon to heat and the liquid state of alloy molten solution 22A that generates alloy molten solution 22A or maintain externally to supplying crucible 20 in crucible 20.
In addition, melt nozzle 10 has the opening portion (relief outlet) for discharging alloy molten solution.
This opening portion is preferably the opening portion of rectangle (shape of slit).
The length on the long limit of the opening portion of rectangle is the length corresponding with the width of manufactured amorphous alloy ribbon.As the length on the long limit of the opening portion of rectangle, specifically, 100mm ~ 300mm is preferably.The lower limit of the length on this long limit is more preferably 125mm.In addition, the upper limit of the length on this long limit is more preferably 275mm.
The distance on the front end of melt nozzle 10 and the surface of cooling roller 30 is near the degree being formed molten bath 22B when utilizing melt nozzle 10 to discharge alloy molten solution 22A by alloy molten solution 22A.
This distance can be the scope of setting usually in single-roller method, is preferably less than 500 μm, is more preferably less than 300 μm.
In addition, from the viewpoint of contact suppressing the front end of melt nozzle 10 and the surface of cooling roller 30, this distance preferably more than 50 μm.
The formation of cooling roller 30 can pivot along the direction of arrow P.
The heat-eliminating medium of the internal circulation water of cooling roller 30 etc., can cool giving (discharge) alloy molten solution 22A to the surface of cooling roller 30 and generate amorphous alloy ribbon 22C thus.
The material that the thermal conductivity of material preferred Cu, Cu alloy (Cu-Be alloy, Cu-Cr alloy, Cu-Zr alloy, Cu-Zn alloy, Cu-Sn alloy, Cu-Ti alloy etc.) of cooling roller 30 is high.
For the surfaceness on cooling roller 30 surface, there is no particular limitation, and from the viewpoint of stacking factor, the arithmetic average roughness (Ra) on cooling roller 30 surface is preferably less than 0.5 μm, is more preferably less than 0.3 μm.From the viewpoint of the processibility of surfaceness adjustment, the arithmetic average roughness (Ra) on cooling roller 30 surface is preferably more than 0.1 μm.
In addition, in present embodiment, in order to maintain above-mentioned preferred surfaceness (Ra), can with the surface of the grinding cooling rollers 30 such as brush in the manufacture of alloy thin band.
In addition, as cooling roller 30, normally used cooling roller in single-roller method can be adopted.
From the viewpoint of cooling power, the diameter of cooling roller 30 is preferably more than 200mm, is more preferably more than 300mm.On the other hand, from the viewpoint of cooling power, this diameter is more preferably below 700mm.
In this manual, surfaceness (aforementioned arithmetic average roughness Ra) refers to the surfaceness measured according to JIS B0601 (2001).
The vicinity (for the sense of rotation of cooling roller 30, with the downstream side compared with melt nozzle 10) on the surface of cooling roller 30 is configured with strip gas nozzle 50.Thus, oppositely (direction of the arrow of the dotted line in Fig. 2) blow strip gas (high pressure gas of such as nitrogen, pressurized air etc.) by the sense of rotation (arrow P) relative to cooling roller 30, thus efficiency carries out the stripping of amorphous alloy ribbon 22C from cooling roller 30 better.
Amorphous alloy ribbon manufacturing installation 100 can also possess beyond above-mentioned formation other form and (such as, batch the winding roller of manufactured amorphous alloy ribbon 22C, near the molten bath 22B of alloy molten solution or its, blow CO
2gas, N
2the gas jet etc. of gas etc.).
In addition, the basic comprising of amorphous alloy ribbon manufacturing installation 100 can with in the past utilize the formation of the amorphous alloy ribbon manufacturing installation of single-roller method (for example, referring to Japanese Patent No. 3494371 publication, Japanese Patent No. 3594123 publication, Japanese Patent No. 4244123 publication, Japanese Patent No. 4529106 publication etc.) identical.
Then, the example using amorphous alloy ribbon manufacturing installation 100 to manufacture amorphous alloy ribbon 22C is described.
First, the alloy molten solution 22A of the raw material as amorphous alloy ribbon of the present invention is prepared in crucible 20.
Wherein, alloy molten solution 22A makes the mother alloy of the composition of amorphous alloy ribbon of the present invention melt and the alloy molten solution that obtains, also can be first prepare to consist of from the composition of amorphous alloy ribbon of the present invention, deducted C (carbon) mother alloy, in the liquation making this mother alloy melt, melt C (carbon) and the alloy molten solution that obtains.
For the temperature of alloy molten solution 22A, there is no particular limitation, from the viewpoint suppressing the precipitate coming from alloy molten solution 22A to be attached to the wall of melt nozzle, is preferably more than 1210 DEG C, is more preferably more than 1260 DEG C.In addition, occur in the viewpoint with the generation of the air pocket of the contact surface side on cooling roller 30 surface from suppression, the temperature of alloy molten solution 22A is preferably less than 1410 DEG C, is more preferably less than 1360 DEG C.
Then, cooling roller 30 surface rotated along the direction of arrow P, utilizes melt nozzle 10 discharge alloy molten solution and form molten bath 22B, and form the film of aforementioned alloy molten solution on aforementioned cooling roller 30 surface, the cooling of Tu film is made amorphous alloy ribbon 22C by Bing simultaneously.Then, the amorphous alloy ribbon 22C for the surface being formed in cooling roller 30 blows strip gas from strip gas nozzle 50 and from the sur-face peeling of cooling roller 30, utilizes not shown winding roller coil into web-like and reclaim.
Carry out continuously from the operation of batching (recovery) being expelled to amorphous alloy ribbon of alloy molten solution, obtaining such as length direction length is thus the amorphous alloy ribbon of the strip of more than 3000m.
The outlet pressure of alloy molten solution is now preferably more than 10kPa, is more preferably more than 15kPa.On the other hand, this outlet pressure is preferably below 30kPa, is more preferably below 25kPa.
When outlet pressure is above-mentioned preferred scope, stacking factor can be improved further.
In addition, the rotating speed of cooling roller 30 can be the scope of setting usually in single-roller method, is preferably below circumferential speed 40m/s, is more preferably below circumferential speed 30m/s.On the other hand, this rotating speed is preferably more than circumferential speed 10m/s, is more preferably more than circumferential speed 20m/s.
In addition, from alloy molten solution be supplied to cooling roller 30 surface timing, after more than 5 seconds, the temperature on cooling roller 30 surface is preferably more than 80 DEG C, is more preferably more than 100 DEG C.On the other hand, this temperature is preferably less than 300 DEG C, is more preferably less than 250 DEG C.
The speed of cooling of the alloy molten solution of cooling roller 30 is preferably 1 × 10
5dEG C/more than s, be more preferably 1 × 10
6dEG C/more than s.
Embodiment
Below enumerate embodiment to specifically describe the present invention, but the present invention is not limited to these embodiments.In following embodiment, " at% " represents atom %.
(embodiment 1 ~ 9, comparative example 1 ~ 2)
" making of amorphous alloy ribbon "
Prepare the amorphous alloy ribbon manufacturing installation identical with the formation of the manufacturing installation of amorphous alloy ribbon shown in Fig. 1 100.Wherein, as cooling roller, prepare following cooling roller.
-cooling roller-
Material ... Cu-Be alloy
Diameter ... 400mm
The arithmetic average roughness Ra on cooling roller surface ... 0.3 μm
First, the alloy molten solution (hereinafter also referred to " Fe-Si-B-C system alloy molten solution ") of Fe, Si, B, C and unavoidable impurity is contained in crucible internal modulation.Specifically, add carbon being melted by the mother alloy containing Fe, Si, B and unavoidable impurity in the liquation obtained, make it melt, mix, modulated the alloy molten solution for the manufacture of amorphous alloy ribbon shown in following table 1 thus.
Then, this Fe-Si-B-C system alloy molten solution is discharged to the cooling roller surface of rotation from this opening portion of melt nozzle of opening portion of rectangle (shape of slit) of length 0.6mm of the length 142mm × minor face with long limit, its quenching is solidified, making width is 142mm, amorphous alloy ribbon 1000kg that thickness is 25 μm.
The concrete manufacturing conditions of amorphous alloy ribbon is as described below.
The outlet pressure of alloy molten solution ... 20kPa
The circumferential speed of cooling roller ... 25m/s
Alloy molten solution temperature ... 1300 DEG C
The distance on melt nozzle front end and cooling roller surface ... 200 μm
Cooling temperature (timing from alloy molten solution is supplied to cooling roller surface, temperature after more than 5 seconds) ... 170 DEG C
The amount of Fe, Si, B and C in the amorphous alloy ribbon of each embodiment and each comparative example as described in Table 1.
In following table 1, Fe amount (at%), Si amount (at%) and B amount (at%) are for amount during 100.0at% respectively with the total amount of Fe, Si and B.C amount (at%) is the amount (namely with the addition of aforementioned total amount for C during 100.0at%) of the total amount 100.0at% relative to Fe, Si and B.
This tittle is the amount utilizing ICP emission spectrometry method to measure.
" evaluation "
Amorphous alloy ribbon for each embodiment and each comparative example carries out following evaluation.
< stacking factor >
For the amorphous alloy ribbon of each embodiment and each comparative example, measure stacking factor (%) according to ASTMA900/A900M-01 (2006) respectively.
Measurement result is shown in following table 1.
< brittleness >
Amorphous alloy ribbon for each embodiment and each comparative example carries out brittleness evaluation (quantizing of brittleness) shown below respectively.
The numerical value of the brittleness utilizing above-mentioned evaluation to obtain is shown in following table 1.
About this evaluation result, the numerical value less expression brittleness of brittleness is more suppressed, the larger expression of numerical value of brittleness is more crisp.
At this, with reference to while Fig. 2 and Fig. 3, brittleness evaluation is described.
Fig. 2 schematically shows during brittleness is evaluated the schematic diagram of sample used, and Fig. 3 is the schematic diagram of sample strip after schematically showing the tearing of brittleness evaluation and tear line.
Brittleness evaluation uses 2 sample strip obtained as follows to carry out: as shown in Figure 2, the sample (being equivalent to cooling roller 1 week) of length 1250mm is determined, by this sample in length direction 2 decile (dashdotted position in fig. 2 cuts off) by amorphous alloy ribbon.
Specifically, for each sample sheet, open otch in length direction one end of sample strip and as tearing starting point, shearing force applied to sample strip, carrying out the operation (this operation being called " tearing operation " below) of tearing.This tears till operation proceeds to the length direction the other end along the length direction of sample strip from length direction one end.In figure 3, with arrow R represent tear operation tear direction.
Then, by the visual observation tear line that reality produces owing to tearing operation (such as, tear line T in Fig. 3), confirm the number of the step (in Fig. 3, size k is the step of more than 6mm) of more than the 6mm produced at the width of sample strip in this tear line.
According to this result, evaluate the brittleness of every bar tear line according to following metewand.
" 1 point " of following metewand represents that brittleness is suppressed most, " 5 points " represent the most crisp.
The metewand of the brittleness of the every bar tear line of –-
1 point ... in every bar tear line, the step of more than 6mm is 0
2 points ... in every bar tear line, the step of more than 6mm is 1 ~ 3
3 points ... in every bar tear line, the step of more than 6mm is 4 ~ 6
4 points ... in every bar tear line, the step of more than 6mm is 7 ~ 9
5 points ... in every bar tear line the step of more than 6mm be more than 10 (or, tear operation and cause sample strip to crumble, tearing of sample strip length direction cannot be carried out in fact)
The brittleness evaluation of above-mentioned every bar tear line is carried out for such as upper/lower positions respectively: as shown in Figure 2, the position (2 place) of the width central part of sample strip, the position (2 place) of the width end 6.4mm of distance sample strip and the width end 12.8mm of distance sample strip.In fig. 2, evaluation position represented by dashed line.Evaluating position is that a sample is 10 places by the sample strip of 2 deciles each 5 places respectively.That is, each sample produces 10 tear lines.
Then, the average mark of brittleness is calculated by the evaluation result of 10 tear lines, using the numerical value of obtained average mark as the brittleness of this sample.
< magneticflux-density (B1,60Hz) >
For the amorphous alloy ribbon of each embodiment and each comparative example, respectively according to ASTMA932/A932M-01 measure apply frequency 60Hz, 79.557A/m magnetic field time magneticflux-density (B1,60Hz).
Measurement result is shown in following table 1.
[table 1]
The explanation of ~ table 1 ~
Fe amount (at%), Si amount (at%) and B amount (at%) are for amount during 100.0at% respectively with the total amount of Fe, Si and B.
C amount (at%) is the amount (namely with the addition of the total amount of Fe, Si and B for C during 100.0at%) of the total amount 100.0at% relative to Fe, Si and B.
The numerical value less expression brittleness of brittleness is more suppressed, larger expression is more crisp.
As shown in table 1, C amount is that in the embodiment 1 ~ 9 of 0.2at% ~ 0.6at%, stacking factor is excellent, brittleness (fragility) is suppressed, high magneticflux-density is maintained.Especially confirming C amount is that in the embodiment 2 ~ 9 of 0.3at% ~ 0.6at%, stacking factor is more than 88%.
On the other hand, C amount is deteriorated more than brittleness (fragility) in the comparative example 1 and 2 of 0.6at%.
Full content disclosed in reference Japanese publication 2012-058714 in this specification sheets.
About the whole documents recorded in this specification sheets, patent application and technological standard, each document, patent application and technological standard by the situation of reference with specifically and when describing respectively to same extent in reference to this specification sheets.
Claims (6)
1. an amorphous alloy ribbon, it contains Fe, Si, B, C and unavoidable impurity,
When being 100.0 atom % with the total amount of Fe, Si and B, Si amount is that 8.5 atom % ~ 9.5 atom %, B amounts are 10.0 more than atom % and are less than 12.0 atom %,
Measuring relative to described total amount 100.0 atom %, C is 0.2 atom % ~ 0.6 atom %,
Thickness is 10 μm ~ 40 μm, width is 100mm ~ 300mm.
2. amorphous alloy ribbon according to claim 1, wherein, described C amount is 0.3 atom % ~ 0.6 atom %.
3. amorphous alloy ribbon according to claim 1 and 2, wherein, described B amount is 10.0 atom % ~ 11.5 atom %.
4. the amorphous alloy ribbon according to any one of claims 1 to 3, wherein, stacking factor is more than 88%.
5. the amorphous alloy ribbon according to any one of Claims 1 to 4, wherein, when being 100.0 atom % with the total amount of Fe, Si and B, Fe amount is 79.0 atom % ~ 80.0 atom %, Si amounts be 8.5 atom % ~ 9.5 atom %, B amounts is 10.5 atom % ~ 11.5 atom %.
6. the amorphous alloy ribbon according to any one of Claims 1 to 5, it is manufactured by single-roller method.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012058714 | 2012-03-15 | ||
| JP2012-058714 | 2012-03-15 | ||
| PCT/JP2013/056355 WO2013137118A1 (en) | 2012-03-15 | 2013-03-07 | Amorphous alloy thin strip |
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| CN104245993A true CN104245993A (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380014114.5A Pending CN104245993A (en) | 2012-03-15 | 2013-03-07 | Amorphous alloy thin strip |
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| Country | Link |
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| US (1) | US20150050510A1 (en) |
| JP (1) | JP6123790B2 (en) |
| KR (2) | KR20200010574A (en) |
| CN (1) | CN104245993A (en) |
| DE (1) | DE112013001401T8 (en) |
| IN (1) | IN2014DN08435A (en) |
| WO (1) | WO2013137118A1 (en) |
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| CN108292550A (en) * | 2015-11-26 | 2018-07-17 | 日立金属株式会社 | Fe base amorphous alloy bands |
| CN108778563A (en) * | 2016-04-04 | 2018-11-09 | 杰富意钢铁株式会社 | Amorphous alloy ribbon |
| WO2018227792A1 (en) * | 2017-06-14 | 2018-12-20 | 青岛云路先进材料技术有限公司 | Iron-based amorphous alloy having low stress sensitivity, and preparation method therefor |
| CN110325302A (en) * | 2017-02-14 | 2019-10-11 | 日立金属株式会社 | The coiling body of the manufacturing method of Fe base noncrystal alloy band, the manufacturing device of Fe base noncrystal alloy band and Fe base noncrystal alloy band |
| CN110914931A (en) * | 2017-07-04 | 2020-03-24 | 日立金属株式会社 | Amorphous alloy strip, manufacturing method thereof and amorphous alloy strip sheet |
| CN112585703A (en) * | 2018-09-26 | 2021-03-30 | 日立金属株式会社 | Method for producing Fe-based nanocrystalline alloy thin strip, method for producing magnetic core, Fe-based nanocrystalline alloy thin strip, and magnetic core |
| CN114574785A (en) * | 2020-12-01 | 2022-06-03 | 安泰非晶科技有限责任公司 | Amorphous nanocrystalline alloy strip and manufacturing method thereof |
| WO2022227425A1 (en) * | 2021-04-25 | 2022-11-03 | 安泰非晶科技有限责任公司 | Amorphous alloy strip and preparation method therefor |
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| MX2017006790A (en) * | 2014-11-25 | 2018-01-11 | Hitachi Metals Ltd | Amorphous alloy ribbon and method for manufacturing same. |
| US20160172087A1 (en) * | 2014-12-11 | 2016-06-16 | Metglas, Inc. | Fe-Si-B-C-BASED AMORPHOUS ALLOY RIBBON AND TRANSFORMER CORE FORMED THEREBY |
| EP3268973B1 (en) * | 2015-03-12 | 2020-10-21 | Montagnani, Guglielmo | Method and device for manufacturing transformers with a core made of amorphous material, and transformer thus produced |
| KR101626432B1 (en) | 2015-06-30 | 2016-06-01 | 주식회사 서진안전 | Breathable gaiters secured |
| JP7467329B2 (en) * | 2018-03-02 | 2024-04-15 | Tdk株式会社 | Magnetic core, its manufacturing method, and coil component |
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| CN110914931A (en) * | 2017-07-04 | 2020-03-24 | 日立金属株式会社 | Amorphous alloy strip, manufacturing method thereof and amorphous alloy strip sheet |
| CN112585703A (en) * | 2018-09-26 | 2021-03-30 | 日立金属株式会社 | Method for producing Fe-based nanocrystalline alloy thin strip, method for producing magnetic core, Fe-based nanocrystalline alloy thin strip, and magnetic core |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20200010574A (en) | 2020-01-30 |
| DE112013001401T5 (en) | 2014-12-24 |
| JPWO2013137118A1 (en) | 2015-08-03 |
| WO2013137118A1 (en) | 2013-09-19 |
| KR20140138222A (en) | 2014-12-03 |
| IN2014DN08435A (en) | 2015-05-08 |
| US20150050510A1 (en) | 2015-02-19 |
| DE112013001401T8 (en) | 2015-02-26 |
| JP6123790B2 (en) | 2017-05-10 |
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