WO1998000252A1 - Feuille solidifiee rapidement pour materiau de soudage en forme de bague, son procede et appareil de production, et ajutage pour sa production - Google Patents

Feuille solidifiee rapidement pour materiau de soudage en forme de bague, son procede et appareil de production, et ajutage pour sa production Download PDF

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Publication number
WO1998000252A1
WO1998000252A1 PCT/JP1997/002263 JP9702263W WO9800252A1 WO 1998000252 A1 WO1998000252 A1 WO 1998000252A1 JP 9702263 W JP9702263 W JP 9702263W WO 9800252 A1 WO9800252 A1 WO 9800252A1
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WO
WIPO (PCT)
Prior art keywords
roll
opening
nozzle
rapidly solidified
ring
Prior art date
Application number
PCT/JP1997/002263
Other languages
English (en)
Japanese (ja)
Inventor
Yuichi Sato
Shigekatsu Ozaki
Yasushi Hasegawa
Eiji Tsuru
Original Assignee
Nippon Steel Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP17021396A external-priority patent/JP3456838B2/ja
Priority claimed from JP17832396A external-priority patent/JP3456842B2/ja
Priority claimed from JP33717096A external-priority patent/JP3331538B2/ja
Application filed by Nippon Steel Corporation filed Critical Nippon Steel Corporation
Publication of WO1998000252A1 publication Critical patent/WO1998000252A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0233—Sheets, foils
    • 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

Definitions

  • the present invention relates to a rapidly solidified foil for a ring-shaped joining material inserted into a joining surface when butt-joining pipes such as steel pipes, a method for producing the same, a production apparatus, and a production nozzle.
  • the conventional ring-shaped joining material 19 is manufactured by cutting out from a sheet-shaped foil material containing an amorphous metal foil, so that many cut-off portions are generated, and the production yield is low. In addition, there was a problem that the cutting operation took time. Also, when the pipe 20 and the pipe 21 are butt-joined as shown in FIG. 15 (b), a concave taper is formed at one pipe end and a convex taper is formed at the other pipe end. There is also a method in which a frusto-conical ring joining material is sandwiched between the tapers.
  • the present inventors have previously proposed the bonding material and a method for manufacturing the same in Japanese Patent Application Laid-Open No. Hei 5-123890.
  • the manufacturing method is such that a taper surface is formed by inclining the peripheral surface of the roll, and the nozzle opening surface of the crucible is opposed to the tapered surface and almost parallel to the tapered surface, and the roll is rotated at high speed. Then, the molten metal in the crucible is jetted onto the taper surface to rapidly cool and solidify the foil, which is then separated.
  • the band-shaped rapidly solidified foil obtained by this method is cut to the length of one round of the roll, and the cut parts are joined to form a frusto-conical ring joining material.
  • the properties are significantly improved.
  • the ring-shaped joining material used when the pipe end face is almost perpendicular to the pipe axis as shown in Fig.
  • Only ring-shaped joining materials with a non-uniform thickness in the width direction can be manufactured.Therefore, when performing pipe joining, the adhesion is poor, and the joining accuracy and joining strength are significantly impaired. Atsushi.
  • the present invention relates to a rapidly solidified foil for a ring-shaped joining material inserted into a joint surface when butt-joining pipes such as steel pipes, a method for producing the same, a production apparatus, and a production nozzle, which should be joined.
  • the quenched and solidified foil for the ring-shaped joining material used when the pipe end face is almost perpendicular to the pipe axis is obtained by equalizing the thickness of the ring-shaped joining material in the ring width direction, or By increasing the surface area of the material, the aim is to improve the joining accuracy and joining strength of the pipes, and to obtain a good yield and good workability. Target.
  • a rapidly solidified foil of the present invention is a ring in which a molten metal is jetted onto a side surface of a high-speed rotating jar to be rapidly solidified, and a ring of separated foils is spirally laminated. It is a rapidly solidified foil for a shape-like joining material, and the ring has a fold concentric with the ring.
  • the present invention provides a method for producing the above-mentioned rapidly solidified foil for a ring-shaped joining material, which comprises forming a nozzle of a crucible containing molten metal on a side surface of a roll perpendicular to a roll rotation axis.
  • the nozzles are disposed with the opening surfaces facing each other, the openings of the nozzles are formed in a slit shape, and the length direction of the openings is set in the radial direction of the roll side surface, and the nozzles are disposed.
  • the thickness of the nozzle is made uniform by gradually increasing the width of the nozzle opening toward the outer periphery of the roll side surface.
  • the gap between the opening surface and the roll side surface is arranged such that the nozzle is gradually expanded toward the outer periphery of the roll side surface, so that the thickness of the foil is made uniform.
  • a concentric step centered on the rotation axis is formed on the side surface of the roll, and the opening face of the nozzle is opposed to a shape obtained by transferring the shape of the step, whereby the foil is formed. It is also possible to have a fold concentric with the ring.
  • the apparatus of the present invention comprises: a crucible for accommodating a molten metal; a nozzle attached to the crucible; a roll for rapidly cooling and solidifying the molten metal ejected from an opening of the nozzle;
  • the nozzle consists of a separation nozzle, and the front of the mouth of the mouth, which is perpendicular to the mouth rotation axis of the mouth, The opening faces of the nozzle face each other, the opening of the nozzle has a slit shape, and the nozzle is disposed such that the length direction of the opening is the radial direction of the side surface of the roll.
  • the width of the opening is gradually increased substantially toward the outer periphery of the side surface of the roll. Further, it is preferable that the nozzle and the roll are arranged so that a gap between the opening surface of the opening and the roll side surface gradually expands toward the outer periphery of the roll side surface. . Further, a concentric step centered on the rotation axis is formed on the side surface of the roll, and the opening surface of the nozzle has a shape obtained by transferring the shape of the step, and the step is the side surface of the mouth. The nozzle and the roll may be provided so as to face the step 5.
  • the nozzle of the present invention is a nozzle for producing a rapidly solidified foil by injecting molten metal in a crucible onto a side surface of a roll perpendicular to a roll rotation axis, wherein the nozzle has an opening.
  • the opening is formed in a lit shape and the length direction of the opening is set in the radial direction of the side surface of the roll, the width of the opening is gradually increased substantially toward the outer periphery of the side surface of the roll.
  • This is a nozzle for producing rapidly solidified foil for ring-shaped joining materials.
  • the nozzle of the present invention is a nozzle for producing a rapidly solidified foil by injecting molten metal in a crucible onto a side surface of a roll perpendicular to a roll rotation axis, the nozzle being provided with an opening.
  • the length direction of the opening is set to the radial direction of the roll side surface, and when the opening is opposed to the roll side surface having a step formed concentrically around the rotation axis,
  • the present inventors have further searched for the development technology of the present invention based on the above idea, and as a result, used a single roll having a tapered surface in which the peripheral surface of the cooling roll shown in the preceding example was inclined, and The length direction of the nozzle opening is set to the inclination direction of the tapered surface, and the shape of the nozzle opening, that is, the nozzle opening has a slit shape, and the width of the opening of the bracket is reduced.
  • the width of the rapidly solidified foil is obtained by ejecting the molten metal from the opening while rotating the single roll in such a manner that the tape is substantially enlarged from the shorter diameter side to the longer diameter side of the tapered surface.
  • We have invented that the thickness in the width direction of the frusto-conical ring can be made uniform even when the diameter is wide.
  • the present inventors do not need to set the nozzle opening shape to the specific shape as described above, but set the length direction of the nozzle opening to the inclination direction of the tapered surface, and Similarly, when the width of the rapidly solidified foil is wide, the gap between the opening surface and the taper surface is gradually expanded substantially from the shorter diameter side to the longer diameter side of the tapered surface. Also invented that the thickness in the width direction can be made uniform.
  • the present inventors devised the cooling port one side without complicating the above-mentioned nozzle shape, and even when the width of the rapidly solidified foil is wide, the thickness in the width direction can be improved.
  • a cooling roll peripheral surface is formed into a tapered surface, and a method of improving the cooling performance of the tapered surface by inclining from the shorter diameter side to the longer diameter side, specifically, Similar to the above, the taper surface is formed of a high thermal conductivity material, preferably a roll core, and the thickness of this material is reduced from the shorter diameter side to the longer diameter side.
  • the inventors invented that the thickness in the width direction can be made uniform even when the width of the rapidly solidified foil is large.
  • FIG. 1 is a perspective view showing an example of the rapidly solidified foil of the present invention.
  • FIG. 2 is a perspective view showing another example of the rapidly solidified foil of the present invention.
  • FIG. 3 is a cross-sectional view showing an example of the rapidly solidified foil of the present invention.
  • FIG. 4 is a perspective view showing an example of the method of the present invention and the apparatus of the present invention.
  • FIG. 5 is a partial plan view showing an example of the method of the present invention and the apparatus of the present invention.
  • FIG. 6 shows an example of the method of the present invention and the apparatus of the present invention, and is a cross-sectional view taken along line AA of FIG.
  • FIG. 7 shows an example of the method of the present invention and the apparatus of the present invention, and is a cross-sectional view taken along the line BB of FIG.
  • FIGS. 8A to 8C are plan views showing examples of the nozzle in the present invention.
  • FIG. 9 is a longitudinal sectional view showing an example of the method of the present invention and the apparatus of the present invention.
  • FIG. 10 is a longitudinal sectional view showing another example of the method of the present invention and the apparatus of the present invention.
  • FIG. 11 is a plan view showing an example of a roll side surface in the method of the present invention and the apparatus of the present invention.
  • FIG. 12 is a plan view showing another example of the nozzle according to the present invention.
  • FIG. 13 is a cross-sectional view showing an application example of a ring-shaped joining material according to the present invention.
  • FIG. 14 shows an application example of a ring-shaped joining material to which the present invention is applied, and is a cross-sectional view taken along line AA of FIG.
  • FIGS. 15A and 15B are perspective views showing an application example of a ring-shaped joining material according to the present invention.
  • FIG. 16 is a cross-sectional view showing a roll and a nozzle in the example of the present invention.
  • FIGS. 17 (a) and (b) are plan views showing the shape of the opening surface of the nozzle in the example of the present invention.
  • FIG. 18 is a cross-sectional view showing an application example of the ring-shaped joining material in the example of the present invention.
  • Fig. 19 (a) shows an example of the method of the present invention and the apparatus of the present invention, (b) shows an example of a nozzle of the present invention, and (c) shows another example of the method of the present invention and the apparatus of the present invention.
  • (D) is a diagram showing the shape of the ring-shaped joining material that is the subject of the present invention.
  • FIGS. 20 (a) and 20 (b) are diagrams showing a cooling outlet structure used in the method and the device of the present invention.
  • FIG. 21 is a diagram showing another example of the cooling roll structure used in the method of the present invention and the apparatus of the present invention.
  • FIG. 22 is a schematic diagram illustrating the method for manufacturing a bonding material having a horizontal portion according to the present invention.
  • FIG. 23 is an enlarged schematic diagram illustrating the manufacturing method of FIG. 22 of the present invention and a schematic diagram showing the shape of the bonding material of the present invention.
  • FIG. 24 is a schematic view showing three examples of the joining method using the joining material of the present invention.
  • FIG. 25 is an enlarged schematic diagram illustrating the manufacturing method of FIG. 22 of the present invention and a schematic diagram illustrating the opening of the nozzle of the present invention.
  • FIG. 26 is a schematic diagram showing a cross-sectional shape of a cooling roll and a nozzle of a bonding material manufacturing apparatus having a horizontal portion of the present invention, and a schematic diagram showing a shape of the bonding material of the present invention.
  • FIG. 27 is a schematic view showing the shape of the joining material of the present invention.
  • FIG. 28 is a schematic diagram showing a nozzle and a nozzle opening of the present invention.
  • FIG. 29 is a schematic diagram illustrating a method for manufacturing a bonding material having three tapered portions according to the present invention.
  • FIG. 30 is a schematic view illustrating a method for manufacturing a bonding material having two tapered portions according to the present invention.
  • FIG. 31 is a schematic diagram showing a cross-sectional shape of a cooling hole and a nozzle of a bonding material manufacturing apparatus having a tapered portion of the present invention, and a schematic diagram showing a shape of a bonding material of the present invention.
  • the rapidly solidified foil 1 for a ring-shaped joining material according to the present invention is composed of a ring laminated in a spiral shape as shown in the example of FIG. 1 and, as illustrated in FIG.
  • the molten metal in the crucible 7 is jetted from the nozzle 8 to the roll side surface 5 to be rapidly cooled and solidified, and separated by the separating nozzle 12.
  • the rapidly solidified foil 1 of the present invention may have a fold 2 that forms a concentric circle with the ring as shown in the example of FIG.
  • FIG. 3 shows various examples of the cross section in the ring radial direction of the rapidly solidified foil 1 of the present invention.
  • (A) and (b) are examples without folds, (a) shows that the solidified foil 1 is flat, and (b) shows a curve.
  • (C) and (d) are examples where the fold 2 is provided at one place in the width direction of the ring, (e) to (g) are examples where it is provided at two places, and (h) to (j) are examples where they are provided at three places. is there.
  • the rapidly solidified foil 1 of the present invention When using the rapidly solidified foil 1 of the present invention, one round of the ring is cut out from the laminated spirally rapidly solidified foil 1 as shown in FIG. 1 or FIG. As shown in FIG. 5, a ring-shaped joining material 19 is used and sandwiched between the end faces of the pipes 20 and 21. Then, when heated while applying pressure, the amorphous metal element contained in the ring-shaped joining material 19 obtained by rapid solidification is easily diffused into the tubes 20 and 21, and is heated in a relatively short time. Bonding is possible, and bonding by heating in the air is possible.
  • the rapidly solidified foil 1 of the present invention only needs to be substantially an amorphous metal, and need not be 100% amorphous.
  • the support piece 32 can be fixed by an electromagnet or a permanent magnet.
  • the ring-shaped joining material 19 made of a magnetic material can be fixed with an electromagnet or a permanent magnet.
  • a rapidly solidified foil 1 having a curved cross section or a rapidly solidified foil 1 having a fold line 2 is used as the ring-shaped joining material 19, as shown in the examples shown in FIGS. 3 (b) to (j).
  • Adopting the pipes 20 and 21 to be joined in Fig. 15 and processing the end faces of the pipes 21 into shapes according to each example in Fig. 3 increases the joining area and strengthens the joining. It can be.
  • the roll 3 has a roll side surface 5 that is perpendicular to the roll rotation axis 4 and rotates in the direction of the arrow.
  • the molten metal is contained in the crucible 7, the molten metal is ejected from the opening of the nozzle 8 to the roll side surface 5, and the solidified rapidly solidified foil 1 is separated by the gas pressure injected from the separation nozzle 12.
  • the roll side surface 5 is made of a material with high thermal conductivity, such as copper or aluminum, and is cooled from the inside so that the surface speed at the position where the molten metal is sprayed is about 5 to 60 mZ seconds. It is desirable to rotate at high speed. If the surface speed is lower than this, the obtained rapidly solidified foil 1 may be crystallized.
  • the details of the crucible 7 and the nozzle 8 and the positional relationship between the roll 3 and the nozzle 8 are shown.
  • the nozzle 8 of the crucible 7 containing the molten metal 11 is shown.
  • An opening 9 is provided at the tip, and the opening surface 10 is opposed to the side surface 5.
  • the opening 9 is a slit as shown in FIG. 6 showing a section taken along the line A--A in FIG. 5 and FIG. 7 showing a section taken along the line B--B in FIG.
  • the nozzle 8 is disposed so that the length direction of the opening 9 is in the radial direction of the roll side surface 5.
  • the width of the ring obtained by the present invention can be determined by the length of the opening 9 of the nozzle 8, and the diameter of the ring can be determined by the distance from the center of the roll side surface 5 to the opening 9. .
  • the separated quenched and solidified foil 1 can be formed into a ring shape that is spirally laminated on the receiving table 13 as shown in FIG. 4, for example.
  • the cradle rotating shaft 15 rotates the cradle 13 in the direction of the arrow at the same rotational speed as the roll 3, and quench solidifies around the cradle 14 provided on the cradle 13. Foil 1 is laminated.
  • FIG. 8 shows a specific example of the opening 9.
  • the roll rotation axis 4 is on the right side of the drawing, and the outer circumference 6 of the roll 3 is on the left side.
  • Fig. 8 (a) shows that the width W of the opening increases linearly from the width Wb at the end of the rotating shaft 4 to the width Wa at the end of the outer circumference 6 and
  • Fig. 8 (b) shows the width W from the width Wb to Wa. It expands in a curve.
  • the width W of the opening 9 By setting the width W of the opening 9 in this way, the thickness of the rapidly solidified foil 1 obtained can be made uniform.
  • the width W of the opening 9 that is, the length of the opening 9 in the roll rotation direction, and the outer circumference of the roll side surface 5
  • the molten metal supply per unit length in the roll rotation direction with respect to the roll side surface 5 should be constant at all points from the roll rotation shaft 4 side to the outer circumference 6 side, because it gradually expands toward the roll side 6. Because it can be.
  • the width W of the opening 9 is constant, the amount of molten metal carried away on the roll side surface 5 by rotation becomes constant per unit time, so the surface velocity due to rotation is large.
  • the amount of molten metal supplied per unit length in the rotation direction decreases, and the thickness tends to decrease.
  • the length of the opening 9 is made substantially equal to the width of the rapidly solidified foil 1.
  • the width W of the opening 9 is set to an appropriate size according to the thickness and composition of the rapidly solidified foil 1 and the diameter of the roll 3 ⁇ rotation speed, but the width Wa on the outer circumference 6 side and the width Wa on the roll rotation axis 4 side are set.
  • the relationship of the width Wb should be such that Wa> Wb.
  • the width on the outer peripheral side of each of the plurality of openings 6 is Wa,, Wa 2 , and the width on the roll rotation axis side is b 2 . 'Then Wa-Wa, + Wa 2 + ⁇ ⁇ >> Wb2 Wb, + Wb 2 + ⁇ ⁇ '.
  • the length and width W of the opening 9 are appropriately determined as described above, and the range thereof is from 0.1 to 5.0 mm for Wa, and from 0.05 mm to 4.95 nun for the width Wb. Can be.
  • the lower limit depends on the problem of additivity when drilling the opening 9, and the upper limit depends on the formation limit of the rapidly solidified foil 1.
  • nozzle 8 it is preferable to dispose the nozzle 8 so that the gap G between the opening surface 10 and the mouth side surface 5 gradually expands toward the outer periphery 6 of the roll side surface 5.
  • Fig. 9 shows a specific example.
  • the length direction of the slit-shaped opening 9 of the nozzle 8 is the radial direction of the roll side surface 5, that is, the direction from the roll rotation shaft 4 side to the outer circumference 6 side, and as shown in FIG.
  • the gap G between the opening surface 10 and the roll side surface 5 gradually increases from the gap Gb on the roll rotation shaft 4 side (lower side in Fig. 9) to the gap G on the outer circumference 6 side.
  • nozzle 8 and roll 3 are arranged.
  • the gap G By setting the gap G in this manner, the thickness of the rapidly solidified foil 1 obtained can be made uniform.
  • the reason is that, as shown in Fig. 9, when molten metal is supplied from the opening 9 to the side surface 5 of the roll, the gap G between the opening surface 10 and the side surface 5 of the roll is high, and the center of the roll (Fig. 9 (lower side of Fig. 9), and gradually expands from the gap Gb toward the outer circumference 6 side gap Ga. This is because the supply of molten metal per unit length in the roll rotation direction can be constant at all points from the outer periphery 6 to the roll center.
  • the gap G is constant, the amount of molten metal carried out on the roll side surface 5 by rotation becomes constant per unit time, so on the outer circumference 6 where the surface speed is high due to rotation, the amount of molten metal per unit length in the rotation direction The amount of molten metal supplied tends to decrease, and the thickness tends to decrease.
  • the length of the opening 9 is approximately equal to the width of the rapidly solidified foil I, the gap Ga and the gap Gb are in accordance with the thickness and composition of the rapidly solidified foil 1, ⁇ Forcing force to make proper dimensions according to rotation speed Under the condition of Ga> Gb, it can be in the range of 0.05mm or more and 2.Omm or less.
  • the lower limit depends on the difficulty in setting the gap G, and the upper limit depends on the formation limit of the rapidly solidified foil 1. Even if the gap G is expanded toward the outer periphery 6 in this manner, and the width W of the opening 9 is increased toward the outer periphery 6 as described above, the respective conditions are still appropriate. Thus, the thickness of the rapidly solidified foil 1 can be made uniform.
  • a concentric step centered on the roll rotation axis 4 is formed on the roll side face 5, and the opening face 10 of the nozzle 8 is opposed to a shape obtained by transferring the shape of the step.
  • a specific example is shown in FIG.
  • Two steps 16 are formed on the roll side surface 5, and each step 16 has a concentric shape about the roll rotation axis 4 as shown in FIG. 11.
  • the opening face 10 of the nozzle 8 has a shape obtained by transferring the step 16 of the roll side face 5 as shown in FIG. That is, when the nozzle 8 is viewed from the opening face 10, a ridge line 17 and a valley line 18 are seen as shown in FIG.
  • the ridge line ⁇ of the opening surface 10 faces the valley line 18 of the step 16 on the outer periphery 6 side in FIG. 11, and the valley line 18 of the opening surface 10 corresponds to the step 16 on the roll rotation axis 4 side in FIG. Ridge line 17
  • Such a step 16 is provided on the roll peripheral surface 5 and the opening surface 10 to face each other.
  • the obtained rapidly solidified foil 1 has the fold 2.
  • a ring-shaped rapidly solidified foil having a cross-sectional shape as shown in FIG. 3 (e) is obtained.
  • the shape of the opening surface 10 and the shape of the opening surface 10 may be set to desired shapes, and may be opposed to each other.
  • the width W of the opening 9 is expanded toward the outer periphery 6 of the roll 3 as described above, or the opening surface 10 and the side surface of the roll
  • the thickness of the rapidly solidified foil 1 obtained by enlarging the gap G between the outer periphery 6 and the outer periphery 6 or expanding the width W and the gap G together toward the outer periphery 6 is obtained. Can be made uniform.
  • the apparatus used in the present invention comprises a crucible 7 for accommodating the molten metal 11, a nozzle 8 attached to the crucible 7, and an opening 9 of the nozzle 8.
  • a roll 3 that quench the molten metal 1 ejected from the roll 1 and a release nozzle 1 2 that separates the rapidly solidified foil 1, and a roll side 5 that is perpendicular to the roll rotation axis 4 of the roll 3
  • the opening surface 10 of the nozzle 8 faces the opening 8
  • the opening 9 of the nozzle 8 has a slit shape, and the length of the opening 9 is set to the strange direction of the roll side surface 5, and the nozzle 8 is It is provided.
  • the width W of the opening 9 is gradually increased substantially toward the outer periphery 6 of the roll side surface 5 as shown in FIG.
  • the gap G between the opening surface 10 of the opening 9 and the roll side surface 5 is increased, and as shown in the example of FIG. 9, the nozzle 8 and the nozzle 8 are gradually expanded toward the outer periphery 6 of the roll side surface 5.
  • roll 3 is provided.
  • a concentric step 16 centering on the roll rotation axis 4 is formed on the roll side face 5, and the opening face 10 of the nozzle 8 is formed in the step 1.
  • the shape of 6 is transferred, so that step 16 faces step 16 of roll side 5
  • a nozzle 8 and a roll 3 can be provided.
  • the nozzle 8 of the present invention quench the molten metal 11 in the crucible 7 onto the side surface 5 of the roll 3 forming a plane perpendicular to the roll rotation axis 4.
  • a nozzle 8 for producing a solidified foil wherein the opening 9 of the nozzle 8 has a slit shape, and the opening 9 is arranged such that the length direction of the opening 9 is the radial direction of the roll side surface 5.
  • the width of the roller is gradually increased substantially toward the outer periphery 6 of the roll side surface 5 as shown in the example of Fig. 8, or the center of the roll rotation shaft 4 is rotated as shown in the examples of Figs. 10 and 11.
  • the opening 9 has a shape obtained by transferring the shape of the step 16 when the opening 9 is opposed to the side surface 5 of the mouth where the concentric step 16 is formed. It is preferable that the width of the opening 9 is gradually increased substantially toward the outer periphery 6 of the roll side surface 5 as shown in FIG.
  • a single roll having a tapered surface in which a cooling roll peripheral surface is inclined is used, and the length direction of the nozzle opening is set to the inclined direction of the tapered surface
  • the shape of the nozzle opening that is, the nozzle opening has a slit shape, and the width of the opening of the bracket is gradually substantially increased from the shorter diameter side to the longer diameter side of the taper surface.
  • the molten metal is ejected from the opening while rotating the single roll so as to be provided in an enlarged manner, so that the thickness of the rapidly solidified foil as shown in Fig. 19 (d) is reduced in the width direction. It can be made uniform.
  • the width W of the opening 9 that is, the length of the opening 9 in the roll rotation direction
  • the molten metal supply amount per unit length in the roll rotation direction with respect to the taper surface 23 can be made constant at all points from the long diameter side to the short diameter side. Because. If the width W of the opening 9 is constant as in the conventional case, the amount of the molten metal carried away on the taper surface 23 by the rotation of the roll becomes equal to the unit time.
  • the shape of the nozzle opening is As shown in FIGS. 8 (a) to (c) and FIG. 19 (b), the length of the opening 9 is made substantially equal to the width of the rapidly solidified foil 1.
  • the width W of the opening 9 is set to an appropriate size according to the thickness and the composition of the rapidly solidified foil 1, and according to the major axis a, minor axis b, inclination angle / 3, and rotation speed of the single roll 22,
  • the relationship between the width Wa on the long side a and the width Wb on the short side b is such that Wa> Wb.
  • the length and width W of the opening 9 are appropriately determined as described above. ⁇ The range is from 0. l mtn to 5. Omm or less for the width Wa on the long diameter side, and 0.05 for the width Wb on the short diameter side. It can be more than 4.95mm. The lower limit depends on the workability problem when drilling the opening 9, and the upper limit depends on the formation limit of the rapidly solidified foil 1.
  • the length direction of the slit 9 of the nozzle 8 is tapered.
  • the gap G is between the opening face 10 and the tapered face 23, and the gap G on the short diameter side of the taper face 23 is large.
  • the thickness of the rapidly solidified foil 1 is also made uniform in the width direction of the foil 9 by arranging the crucible 7 and the single roll 22 so as to gradually expand from b toward the longer-side gap Ga. be able to.
  • the present inventors devised the cooling roll side without complicating the above-mentioned nozzle shape, thereby making the thickness in the width direction uniform even when the width of the rapidly solidified foil is large.
  • a method of improving the cooling ability of the tapered surface by inclining from the shorter diameter side to the longer diameter side specifically, forming the tapered surface with a high thermal conductivity material, preferably a roll core.
  • a high thermal conductivity material preferably a roll core.
  • the thickness in the width direction is made uniform even when the width of the rapidly solidified foil is wide, as described above.
  • the single roll 22 used in the method of the present invention is a roll of the present invention in which the cooling ability of the tapered surface 23 is improved by inclining from the short diameter b side to the long diameter a side, and examples thereof are shown in FIGS. 20 and 21. .
  • the method of the present invention can also be applied to a case where the entire apparatus is tilted to make the taper surface 23 of the single mouth 22 horizontal, and the molten metal 11 is ejected from the opening 9 provided on the bottom of the crucible 7. it can.
  • FIG. 20 shows an embodiment of the roll of the present invention, in which a tapered surface 23 is formed of a material 25 having a high thermal conductivity, and the thickness of the material 25 is increased from the minor diameter b to the major diameter a.
  • the inside of the single roll 1 is a cavity, and the high thermal conductivity material 25 forming the tapered surface 23 is cooled from the inner surface side by water cooling or the like.
  • the high thermal conductivity material 25 forming the tapered surface 23 is in contact with the roll core 24. In each case, the cooling power of the tapered surface 23 is improved by inclining the high thermal conductivity material 25 from the thinner minor diameter b side to the thicker major diameter a side.
  • FIG. 21 shows another embodiment of the roll of the present invention, in which a tapered surface 23 is formed of a material 26 having a low thermal conductivity, and the material 26 is in contact with a roll core 24 made of a material having a high thermal conductivity, and has a tapered surface 23. It is slanted from the minor diameter b side to the major diameter a side. In this example, the cooling ability of the tapered surface 23 is improved by inclining from the shorter diameter b side where the thickness of the low thermal conductivity material 26 is thicker to the thinner longer diameter a side o
  • the high thermal conductivity material 25 Cu, a Cu-based alloy, Ag,
  • Ni, Ni-based alloy, Fe, Fe-based alloy, etc. can be adopted as the low thermal conductivity material 26 such as Au, ⁇ 1 and the like.
  • Fe, Cu, A1, or the like can be adopted as a material for the roll core 24.
  • the thickness of the rapidly solidified foil 1 can be made uniform in the width direction.
  • the cooling ability of the taper surface 23 is uniform in the width direction as in the past.
  • the amount of molten metal carried away on the tapered surface 23 by the rotation of the roll becomes constant per unit time, so that the supply of molten metal per unit length in the rotating direction is small on the long diameter side where the surface speed is large due to rotation. Disappears and becomes thinner.
  • the cooling ability of the tapered surface 23 is improved by inclining from the short diameter side to the long diameter side, so that solidification proceeds rapidly on the long diameter side, so that the thickness in the width direction can be made uniform. it can.
  • the cooling capacity of the tapered surface 23 changes according to the thickness and the composition of the rapidly solidified foil 1, and also according to the major axis a, minor axis ⁇ , inclination angle / ?, and rotation speed of the single roll 22.
  • the thickness of the high thermal conductivity material 25 forming the tapered surface 23 should be 1 mm or more on the long diameter a side and 0.5 mm or more and 10 mm or less on the short diameter b side. It is desirable to make the a side thicker than the short diameter b side. This is because the lower limit of the thickness depends on the processing limitation, and the upper limit is that if the minor diameter b exceeds 10 times, the effect of adjusting the thickness of the foil 1 becomes difficult to recognize.
  • the thickness of the low thermal conductivity material 26 forming the tapered surface 23 is in the range of 0.1 mm or more and 5.Omm or less on the minor diameter b side and 4.5 mm or less on the major diameter a side. It is desirable to make the side thinner than the minor axis b side. If the minor axis b side is less than 0.1 mm, the effect of adjusting the thickness of the foil 1 is difficult to be recognized, and if the minor axis b side exceeds 5.0 mm, the difference in cooling rate is not clear. When the thickness of the minor axis b is set to 5.Omm, the effect of adjusting the thickness of foil 1 is recognized unless the difference in thickness from the major axis a is set to about 0.5 mm. Since it is difficult, it is desirable that the thickness of the major axis a side be 4.5 mm or less.
  • a frusto-conical ring joining material consisting of a rapidly solidified thin ribbon forming a genuine frusto-conical ring having one or more taper portions, for example, as shown in FIG. Whether the tapered steel pipes 29, 30 have a horizontal part 29h between the tapered parts 29a and 29b and a horizontal part 30h between the tapered parts 30a and 30b, or Alternatively, as shown in FIG. 24 (b), tapered steel pipes 29, 30 having three tapered portions 29a, 29b, 29c and 30a, 30b, 30c are provided.
  • FIG. 24 (c) a taper shape having two taper portions 29a, 29b and 30a, 30b as shown in FIG. 24 (c).
  • Ri By the tube 29, 30 and child, it is possible to a strong joint of Ri by from being hardened against the tensile stress in the longitudinal direction after bonding.
  • a horizontal portion and a taper portion or a plurality of taper portions as shown in FIGS. 24 (a) to (c) are required.
  • a tapered frustoconical ring joining material 28 having such a shape is required.
  • the manufacturing method is to use a single roll formed with at least one each of a horizontal portion and a taper portion adjacent to the surface, approaching the vicinity of the tapered surface, and using a single roll.
  • the nozzle surface of the molten alloy container is positioned almost parallel to the surface of the single roll near the surface, and the molten alloy is ejected near the tapered surface of the high speed rotating single roll to form a rapidly solidified ribbon.
  • the molten alloy can be ejected near the tapered surface of the single roll rotating at high speed to form a rapidly solidified ribbon.
  • FIG. 22 is a schematic diagram for explaining an example of a method for producing a truncated-cone ring joining material having a horizontal portion according to the present invention. That is, the crucible 7 having the nozzle 8 at the lower portion and holding the molten alloy 11 is moved closer to the cooling roll 27 rotating at a high speed, and the molten alloy 11 is ejected from the opening at the lower portion of the crucible 7. At this time, the surface of the cooling roll 27 used is a flat portion at the center and a taper processed at both ends.
  • the molten alloy 11 ejected from the opening provided at the bottom of the crucible 7 forms a paddle 31 as a basin between the bottom of the nozzle 8 and the cooling roll 27, and the bottom of the paddle 31 That is, the molten alloy 11 starts to solidify from the cooling roll 27 side of the paddle 31. Then, the shape of the solidified alloy becomes a shape obtained by transferring the shape of the surface of the cooling roll 27, and the rapidly solidified thin ribbon 1 for a frusto-conical ring joining material is obtained.
  • high-pressure gas is sprayed from the stripping nozzle 12 to quench the rapidly solidified ribbon 1 for the frustum-cone ring bonding material. Is separated from the surface of the cooling roll 27.
  • FIG. 22 of the present invention is a schematic diagram showing an enlarged view of Fig. 22, in which the molten alloy ejected from the crucible 7 forms paddles 31 on the cooling holes 27, and is used for the frusto-conical ring joining material.
  • the appearance of rapidly solidified ribbon 1 is schematically shown. As described above, the center of the surface of the cooling roll 27 is flat, and both ends are tapered, so if the molten alloy is jetted to the surface position of the cooling roll as shown in the figure, The rapidly solidified ribbon 1 for the frustum conical ring joining material has a fold at the position shown by the dotted line.
  • a sample corresponding to the circumference of the cooling roll 27 used from the obtained rapidly solidified thin ribbon 1 for ring-shaped frustum conical ring joining material was taken and wound one round, as shown in Fig. 24 (a).
  • the frustoconical ring A mixture 28 is formed.
  • the ring joint material 28 of the present invention is formed of a horizontal portion 28h and tapered portions 28a and 28b, for example, as shown in FIG. 24 (a).
  • FIG. 24 (a) is a schematic diagram showing a state in which a groove joint is joined using the frustum-cone ring joining material having a horizontal portion according to the present invention.
  • the par and convex tape should be processed in advance.
  • a frusto-conical ring joining material 28 is placed as an insert material between the concave and convex tapes, which are the joining surfaces of these steel pipes 29 and 30, and the joints are adjusted appropriately. To a suitable temperature for bonding.
  • the preferred shape of the frusto-conical ring joining material 28 used as the insert material will be described later, but the shape of the frusto-conical ring joining material 28 is similar to the tapered shape processed into steel pipes 29 and 30. Make sure it is in shape.
  • the nozzle used in the manufacturing method shown in FIG. 22 of the present invention is provided at the lower part of the crucible 7 and has a tapered part and a horizontal part formed on the bottom face side by side as shown in FIG. 25 (a). is there.
  • FIG. 25 (a) shows a horizontal part provided at the center and tapered parts formed at both ends.
  • FIG. 25 (a) shows an example in which the Norrebo 7 and the nozzle 8 are integrated, but these may or may not be integrated.
  • the opening of the nozzle may be, for example, a single rectangular opening 9 connected from one tapered portion of the nozzle bottom to the other tapered portion as shown in FIG. 25 (b).
  • the opening length of the nozzle depends on the required width of the frusto-conical ring joining material. decide.
  • the opening 9 of the nozzle of the present invention is not limited to a single rectangular hole. Two rectangular holes as shown in FIG. 25 (c) may be arranged in parallel.
  • the dotted lines in FIGS. 25 (b) and (c) correspond to the positions of the folds of the frusto-conical ring joining material indicated by the dotted lines in FIG.
  • FIG. 26 (b) is a cross-sectional view of a frustoconical ring bonding material having one horizontal portion among the frustoconical ring bonding materials 2 of the present invention. Is schematically shown.
  • the “horizontal portion” referred to in the present invention is a portion indicated as 28 h in the drawing. Generally, to be horizontal means that the angle of is zero.
  • the term “horizontal portion” as used herein means not only a case where this 0 3 is zero, but also a range of about 0 to 5 °.
  • Et al is a other shapes parameter, ⁇ 3, a, a , a 3,, are Raniwa, b, b, b 3 not particularly limited. These shape parameters are appropriately set according to the groove shape of the material to be welded at the time of the groove joint welding, so as to be similar to this shape.
  • the shapes of the nozzle and the cooling roll are respectively different , ⁇ ,,, a,, aa 3 , and b,, b 2 , b 3 . Specific values of these shape parameters will be described in detail in Examples.
  • the shape of the frusto-conical ring joining material of the present invention is not limited to a shape having one horizontal portion and tapered portions at both ends as shown in FIG. 26 (c).
  • FIG. 27 (a) The shape may be configured by one horizontal portion and one tapered portion as shown in (b).
  • two horizontal parts It may be the above.
  • the shape of the nozzle to be used is, for example, as shown in FIG. That is, for example, the shape of the nozzle and the length of the opening shown in FIGS. 28 (a) and (b) are determined when manufacturing the frusto-conical ring joining material shown in FIGS. 27 (a) and (b), respectively.
  • the figure shows the nozzle used for the measurement and the length of the opening.
  • the apparatus for manufacturing a bonding material having a horizontal portion includes a single roll 27 capable of high-speed rotation having a horizontal portion and a taper portion formed at least at one location on the surface, as shown in FIG. And at least one horizontal portion and a taper portion are formed at the bottom as nozzles for supplying the molten alloy to the surface of the cooling roll 27 rotating at a high speed.
  • This is a single-roll rapid solidification manufacturing device consisting of a nozzle 8 provided with an opening starting from a part of the part.
  • another example of the present invention is a truncated-cone-frustum ring-joining material having only two or more tapered portions and a method of manufacturing the same.
  • Fig. 24 (a) shows an example of a joint configuration with three tapered sections
  • Fig. 24 (c) shows an example of a joint mode with two tapered sections when the taper angle ⁇ of the steel pipe joint is large. Is shown.
  • FIG. 29 illustrates a single-roll rapid solidification manufacturing facility for manufacturing a frusto-conical ring joining material having three tapered portions 28a, 28b, and 28c in FIG. 24 (b).
  • the same reference numerals as those shown in FIG. 22 denote the same components.
  • a crucible 7 The nozzle 8 has three tapered sections at the bottom, openings that start at some of the tapered sections at both ends, and a surface at the high-speed rotating single port 27.
  • FIG. 30 differs from that of FIG. 22 in that three continuous taper portions corresponding to the taper angle of the nozzle 8 are formed.
  • the nozzle 8 of the crucible 7 blows out the molten metal from a location closer to the side than the bottom. This type is suitable for obtaining a joining material for joining steel pipes when the taper angle ⁇ is relatively large.
  • Figure 31 (a), (b), and (c) show the nozzle, cooling roll, and the frusto-conical ring joining material obtained by applying them to the joining form having three continuous taper portions. This corresponds to FIGS. 26 (a), (b) and (c).
  • 3 1 in the shape parameter one coater, ⁇ 2, ⁇ 3, a,, a 2, a 3, b,, b 2, b 3 , the groove shape of the material to be joined during HirakisakiTsugi hand joint It is set appropriately so that the shape becomes similar to the shape.
  • the frusto-conical ring joining material is not limited to forming two or three tapered portions as shown, and it is also possible to form four or more tapered portions.
  • the nozzle used is not shown, but is shown as a nozzle opening for a bonding material having a horizontal portion. 25 and 28 can be directly applied by replacing the horizontal portion with a tapered portion. Therefore, in the present invention, the nozzle opening is formed over all or a part of each of the tapered part and the horizontal part.
  • the single-roll quenching and solidification production apparatus referred to in the present invention includes a centrifugal quenching apparatus using the inner wall of a drum, an apparatus that builds on an endless type belt that moves at high speed along a single roll, These include, for example, auxiliary rolls and those with a roll surface temperature control device, or devices used for fabrication under reduced pressure or in vacuum or inert gas.
  • the manufacturing conditions employed in the present invention are described below.
  • the jet pressure of the molten alloy is 0.01 to 3 kgZ cm 2
  • the rotation speed (surface speed) of the cooling roll is in the range of 5 to 6 ⁇ ⁇ seconds. Is preferred.
  • the optimum values for these conditions are selected according to the target thickness of the ribbon and other manufacturing conditions.
  • Example 1 of the present invention Using the apparatus of the present invention and the nozzle of the present invention as shown in FIGS. 4 to 7, a rapidly solidified foil 1 of the present invention as shown in FIG. 1 was produced by the method of the present invention. Then, one circumference of the ring of the rapidly solidified foil 1 is cut out, and the cut surfaces are joined to form a ring-shaped joining material 19, as shown in FIG.
  • the pipes 21a were butt-joined across the pipe end faces.
  • Both the pipe 20a and the pipe 21a were steel pipes, with an outer diameter of 260mm, an inner diameter of 240mm, a wall thickness of 10mm, and the pipe end face was a plane perpendicular to the pipe axis.
  • the diameter of the roll 3 was 300 mm and the thickness was 30 mm.
  • the roll side 5 was polished and finally finished with # 600 emery paper.
  • a quartz nozzle 8 is also welded to the lower side of the quartz crucible 7, and the tip of the nozzle 8 is a slit with a width W of 0.6 «nm and a length of 10 mm.
  • the opening 9 was machined.
  • Crucible 7 contained 200 g of an alloy having a composition of Fe-9 wt% Si-1.5 wt% B and was melted by a high frequency induction method.
  • the crucible 7 After melting, lower the crucible 7 so that the upper end of the slit-shaped opening 9 is 20 mm from the outer periphery 6 of the mouth side 5 to the center side from the outer periphery 6 of the mouth 5, and between the opening 10 and the mouth 5 of the mouth.
  • the gap G is almost uniformly 0.3 mm, and while rotating the roll 3 at 1800 rpm, the ejection pressure from the opening 9 is 0.2 kg / cn ⁇ and the direction perpendicular to the roll side surface 5 Molten metal 11 was ejected, and Ar gas was blown from the separation nozzle 12 to separate it.
  • the obtained solidified foil 1 was an amorphous alloy from the results of X-ray analysis and thermal analysis.
  • a ring-shaped joining material 19 having an inner diameter of 240 mm and an outer diameter of 260 ⁇ was obtained by cutting out the length of the ring for one circumference and joining the cut surfaces, and the shape and dimensions were good. Then, as shown in Fig. 15, a ring-shaped joining material is sandwiched between the end faces of the pipe 20 and the pipe 21 and pressurized at a pressure of 1.5 MPa, and kept at a temperature of 1,200 ° C for 2 minutes in the atmosphere. As a result, the pipes 20 and 21 were diffusion-bonded, and in the tensile test and bending test after bonding, both fractured at the base material, resulting in good bonding.
  • Example 2 of the present invention Using the apparatus of the present invention used in Example 1 of the present invention, a rapidly solidified foil 1 of the present invention as shown in FIG. 1 was produced by the method of the present invention.
  • the shape of the opening 9 of the nozzle 8 shown in FIGS. 5 to 7 uses the nozzle of the present invention that is substantially enlarged toward the outer periphery 6 of the roll side surface 5.
  • the dimensions of the opening 9 of the nozzle of the present invention used were such that the width Wa was 0.8, the width Wb was 0.6 mm, and the length was 20.
  • Other manufacturing conditions were the same as those of Example 1 of the present invention.
  • the obtained rapidly solidified foil 1 had a width of 20 mm, a thickness of about 25 m, and a uniform thickness in the width direction. Also, from the results of X-ray analysis and thermal analysis, the obtained rapidly solidified foil 1 was an amorphous alloy. Then, one circumference of the ring of the rapidly solidified foil 1 is cut out, and the cut surfaces are butted to form a ring-shaped joining material 19. As shown in Fig. 15 (a), the pipes 20a and 21a were hollowed and butted to the pipe end faces. Both pipe 20a and pipe 21a are steel pipes, outer diameter 260nim, inner diameter
  • the joining conditions were the same as in Example 1 of the present invention. In the tensile test and the bending test after joining, in both cases, the joint broke at the base material and the joint was good.
  • Example 3 of the present invention Using the apparatus of the present invention used in Example 1 of the present invention, a rapidly solidified foil 1 of the present invention as shown in FIG. 1 was produced by the method of the present invention.
  • the gap G between the opening surface 10 of the nozzle 8 and the roll side surface 5 is large, and the nozzle gradually expands toward the outer periphery 6 of the roll side surface 5 as shown in FIG. 8 was arranged. That is, in FIG. 9, the gap Gb on the roll center side (the lower side in FIG. 9) was set to 0.2 mm, and the gap Ga on the roll outer periphery 6 side was set to 0.3 mm.
  • the size of the opening 9 at the tip of the nozzle 8 used was a slit having a width of 0.6 mm and a length of 20 mm. Other manufacturing conditions were the same as those of Example 1 of the present invention.
  • the obtained rapidly solidified foil 1 had a width of 20 mm, a thickness of about 25 // m, and a uniform thickness in the width direction. Also, from the results of X-ray analysis and thermal analysis, the obtained rapidly solidified foil 1 was an amorphous alloy. Then, one circumference of the ring of the rapidly solidified foil 1 is cut out, and the cut surfaces are joined to form a ring-shaped joining material 19, as shown in Fig. 15 (a), for the pipes 20a and 21a. Butt welding was carried out by sandwiching it between the pipe end faces. Both pipe 20a and pipe 21a are steel pipes, outer diameter 260mm, inner diameter
  • the joining conditions were the same as in Example 1 of the present invention. In the tensile test and the bending test after joining, in both cases, the joint broke at the base material and the joint was good.
  • FIG. 10 shows the dimensions of the step 16 formed on the side surface 5 of the roll 3 used.
  • each of the angles 0 and 0 2 was 30 °
  • the length was 12 mm
  • each of L 2 and L 3 was 10 mm.
  • the dimensions of the opening 9 of the addition Roh nozzle 8 in FIG. 17 (a) was 0.6 mm.
  • the length of the width W, and a 12 mm, and L 4 and L 5 4 both the mm.
  • Other manufacturing conditions were the same as those of Example 1 of the present invention.
  • the obtained rapidly solidified foil 1 had a width of about 20 m and a thickness of about 25 m, and was an amorphous alloy from the results of X-ray analysis and thermal analysis. Then, one circumference of the ring of the rapidly solidified foil 1 is cut out, and the cut surfaces are joined to form a ring-shaped joining material 19a. As shown in Fig. 18, the pipe end faces of the pipe 20a and the pipe 21a are formed. Butted and joined. Both the pipe 20a and the pipe 21a are steel pipes, 260mm in outer diameter, 220mm in inner diameter, and 20 wall thickness. Figure 18 shows the shape of the pipe end face.
  • Example 5 of the present invention Using the apparatus of the present invention used in Example 1 of the present invention, the rapidly solidified foil 1 of the present invention was produced by the method of the present invention. However, the roll 3 shown in FIG. 16 was used as in Example 4 of the present invention.
  • the opening surface 10 of the nozzle 8 used is a shape obtained by transferring the shape of the step 16 of the side surface 5 of the nozzle, and the width of the opening 9 is gradually increased substantially toward the outer periphery of the roll side surface. It was used.
  • the dimensions of the opening 9, in FIG. 17 (b), the width Wa 0.8Mni, the width Wb 0.6 mm, and a length and a 12 mm, and L (and L 5 4 both the Jour. Other production conditions Same as Example 1 of the present invention.
  • the obtained rapidly solidified foil 1 was 20 mm in width and about 25 / m in thickness, and was an amorphous alloy from the results of X-ray analysis and thermal analysis. And the rapidly solidified foil 1 One round of the ring was cut out and the cut surfaces were butt-joined to form a ring-shaped joining material 19a, which was butt-joined between the pipe end faces of the pipes 20a and 21a as shown in Fig. 18. Both tube 20a and tube 21a are steel tubes, outer diameter 260, inner diameter
  • Example 6 of the present invention Using the apparatus shown in Fig. 19 (a) and the nozzle shown in Fig. 19 (b), a rapidly solidified coagulated foil 1 was produced by the method of the present invention using the nozzle shown in Fig. 19 (b). Then, as shown in FIG. 19 (a), a truncated cone ring joining material 19b cut out from the foil and manufactured was inserted, and the tube 20b and the tube 21b were joined.
  • the pipe 20b and the pipe 21b are both steel pipes, having an outer diameter of 264.4mni, an inner diameter of 28.6mm, and a wall thickness of 17.8mm.
  • the taper angle of the concave taper 20c and the convex taper 21c is 45 °, and the length of the taper 20c and 21c in the inclination direction is 25.2 mm.
  • the major axis a of the single roll 22 is 280 mm
  • the minor axis b is 180 mm
  • the width c is 50 °
  • the inclination angle of the tapered surface 23 is 45 °.
  • the material of the taper surface 23 is copper. While rotating the single roll 22 at a high speed of 1800 rpm, a molten metal 11 having a composition of 200 g of Fe—9 wt% Si—1.5 wt% B was ejected from the crucible 4 at an ejection pressure of 0.2 kg / cm 2 . Then, it was ejected from the slit-shaped nozzle opening 9 to the taper surface 23.
  • the jetting position is such that the left end of the opening 9 is on the short diameter b side by 10 mm from the taper starting point on the long diameter a side of the single roll 22, and the opening face 10 and the tapered face 23 are parallel and a gap is formed.
  • the shape of the opening 9 is as shown in Fig. 19 (b), the width Wa is 0.8mm, and Wb is
  • the width of the obtained rapidly solidified foil 1 is 25 mm, the thickness is about 25 / zm, and it is uniform in the width direction. there were.
  • This rapidly solidified foil 1 was cut out in accordance with the taper circumference of the steel pipe, and the end faces were butted to form a frusto-conical ring joining material having a major axis of 264 mm and a minor axis of 229 mm. The shape and dimensions of the joining material were also good, and the thickness was uniform. Then, when the steel pipe was inserted between the tapers as shown in Fig. 15 (b), the steel pipe was in close contact with the entire surface of the concave taper 20c and the convex taper 21c, and the bonding accuracy and bonding strength after heating were high. Very good.
  • the obtained rapidly solidified foil 1 has a uniform thickness in the width direction, and the shape and dimensions of the cut-out frusto-conical ring joining material are good, and the joining results between steel pipes using this material are extremely good. It was good.
  • Example 8 of the present invention Using the roll of the present invention as shown in FIG. 20 (b), a rapidly solidified foil 1 was produced by an apparatus as shown in FIG. And Figure 15
  • a frusto-conical ring joining material 19b shown in FIG. 19 (d) manufactured by cutting out from the foil 1 was inserted, and the tube 20b and the tube 21b were joined.
  • Both pipes 20b and 21b are steel pipes with an outer diameter of 264.4mni, an inner diameter of 228.6 ram and a wall thickness of 17.8mm.
  • the angle of the concave taper 20c and the convex taper 21c, the 0 angle ⁇ is 45.
  • the major diameter a of the single roll 22 is 280mm
  • the short diameter b is 180mm
  • the width c is 50mm
  • the inclination angle 3 of 23 was set to 45 °. Then, in FIG.
  • a tapered surface 23 was formed on a steel roll core 24 as a high thermal conductivity material 25 with a copper ring. 1.0 thickness on the minor axis b side The major diameter is 2.5 mm on the a side.
  • a molten metal 11 having a composition of 200 g Fe—9 wt% Si—1.5 wt% B was discharged from the crucible 7 at an ejection pressure of 0.2 kgZcm 2 . It was ejected from the nose-shaped nozzle opening 9 to the tapered surface 23.
  • the jetting position is such that the left end of the opening 9 is a position where the short diameter b side is 1 Omm shorter than the taper starting point on the long diameter a side of the single roll 22, and the opening surface 10 and the taper surface 23 are parallel and the gear
  • the gap was 0.2 mm.
  • the width of the opening 9 was 0.6 mm and the length was 25 mm.
  • the width of the obtained rapidly solidified foil 1 was 25 mm, the thickness was about 25 m, and the width direction was uniform.
  • This rapidly solidified foil 1 was cut out in accordance with the taper circumference of the steel pipe, and the end faces were butted to form a frustum-cone ring bonding material having a major axis of 264 nm and a minor axis of 229 mm.
  • the shape and dimensions of the joining material were also good, and the thickness was uniform.
  • Example 9 of the present invention A rapidly solidified foil 1 was produced in the same manner as in Example 8 of the present invention except that the roll of the present invention as shown in Fig. 21 was used. Then, similarly to the invention example 8, as shown in FIG. 19 (d), a frusto-conical ring joining material 19b cut out from the foil 1 and inserted was inserted into the tube 20b and the tube 21b. Were joined.
  • a tapered surface 23 is formed on a copper roll core 24 by a Ni plating layer as a low thermal conductivity material 26. The thickness of the Ni plating layer is 0.0 mm on the minor diameter b side and 0.3 IMI on the major diameter a side.
  • the production of the frustum-shaped conical ring-shaped joining material having the above dimensions was performed as follows. That is, a copper cooling roll having an outer diameter (0max) of 90 mm, an inner diameter (0 min) of 25 mm, and a thickness of 70 mm and having a shape as shown in FIG. 26 (b) is prepared, and a single-roll rapid solidification manufacturing apparatus including the cooling roll is prepared. A rapidly solidified ribbon was produced by using. The shape of the cooling roll will be described using the cooling roll shape parameters shown in FIG. 26 (b).
  • t 2, and t 3 were set to 26.5 mm, 17 mm, and 26.5 mm, respectively. Also, ⁇ ,, ⁇ 2, ( 9 3 , respectively, 31 °, 4 °, it was 31 °.
  • the nozzle used had a horizontal portion at the center of the bottom and a tapered portion on both sides as shown in Fig. 26 (a).
  • a single rectangular hole was provided at the bottom of this nozzle to provide an opening for the nozzle.
  • the dimensions of the rectangular opening of this nozzle are as follows: the length in the cooling roll rotation direction is 0.4 mm, and the length in the width direction of the cooling port is 4 mm, 17 mm, a,, a 2, a:, respectively.
  • b 2 and b 3 were set to 2.4 mm, 1.2 mm, 2.4 mm, and ⁇ I, ⁇ 2 , and 0 3 were set to 31 °, 4 °, and 31 °, respectively.
  • the position of the nozzle at the time of fabrication should be aligned with the horizontal part at the center of the nozzle opening and the horizontal part at the center of the cooling roll surface.
  • Example 11 of the present invention In joining two steel pipes having an outer diameter of 264.4 mm, an inner diameter of 228.6 mm, and a thickness of 17.8 mm, a three-stage tapered grooved joint as shown in FIG. Attempted bonding.
  • the shape of the frustroconical ring joining material used for this groove joint one of the shape parameters shown in Fig. 31 (c) is 5 mm, 15 mm, and 5 mm, respectively. and then, were or, b,, b, b 3, respectively 4.2 mm, 9.4 mm, 4.2 mm, is La, theta,, theta, and theta respectively, 40. , 32 ° and 40 °.
  • the joint portion of the steel pipe to be joined is machined using a lathe according to the dimensions of the frusto-conical ring joining material, and is shaped so that a groove joint can be joined as shown in Fig. 24 (b). .
  • the nozzle used had three tapered portions at the bottom as shown in FIG. 31 (a).
  • a single rectangular hole was provided at the bottom of the nozzle to provide an opening for the nozzle.
  • the dimensions of the rectangular opening of the Roh nozzle is cooled roll rotation direction length of the long diameter side 0.8 mm, a minor axis 0.6 mm, length of the cooling roll width direction, ai, respectively a 2, a 3 5 mm, 15 mm, 5 mm, b! , b 2 , b 3 are 4.2mm, 9.4mm, 4.2mm, ⁇ I, ⁇ 2, and ⁇ 3 are each 40. , 32 ° and 40 °.
  • a frusto-conical ring joining material (sheet width 25 mm, sheet thickness 25 m) having a desired shape was manufactured under the same manufacturing conditions as in Example 10 of the present invention, and this was applied to a steel pipe joint. It conformed to the shape and gave good results.
  • a rapidly solidified foil for a ring-shaped joining material which is inserted into a joining surface when joining pipes such as steel pipes, can be obtained with good yield and good workability.
  • a ring-shaped joining material can be easily obtained without waste.
  • the thickness in the ring axis direction is made uniform, and the joining strength between the tubes is further improved.
  • the joining accuracy between the tubes is improved, and the surface area between the tubes is increased, so that stronger joining can be performed.

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  • Continuous Casting (AREA)

Abstract

Une feuille solidifiée rapidement pour un matériau de soudage en forme de bague est obtenue en atomisant un métal en fusion sur la face d'un rouleau tournant à haute vitesse et solidifiant rapidement celui-ci, la feuille en forme de bague étant transformée en un serpentin. Elle possède également une partie de pliage concentrique avec les anneaux. Une surface d'ouverture de l'ajutage est opposée à la face du rouleau vertical ou inclinée par rapport à l'axe de rotation, l'ouverture ayant la forme d'une fente, la direction longitudinale de l'ouverture étant parallèle au sens radial de la face du rouleau, le métal fondu étant atomisé et la feuille solidifiée rapidement étant enlevée par décollement. Lorsque des tubes tels que des tubes d'acier sont soudés en bout-à-bout avec les surfaces extrêmes des tubes verticales à l'axe du tube, la feuille solidifiée rapidement est placée entre les surfaces extrêmes du tube. Les rendements de production de cette feuille solidifiée rapidement sont élevés. Compte tenu du fait que l'épaisseur dans le sens de la largeur de la feuille en anneau est uniforme ou que l'aire de surface du matériau de soudage est accrue, la précision et la résistance de la soudure sont améliorées.
PCT/JP1997/002263 1996-06-28 1997-06-30 Feuille solidifiee rapidement pour materiau de soudage en forme de bague, son procede et appareil de production, et ajutage pour sa production WO1998000252A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8/170213 1996-06-28
JP17021396A JP3456838B2 (ja) 1996-06-28 1996-06-28 円錐台リング接合材用急冷凝固箔の製造方法および装置ならびに製造用ノズル
JP17832396A JP3456842B2 (ja) 1996-07-08 1996-07-08 円錐台リング接合材用急冷凝固箔の製造方法および製造用ロール
JP8/178323 1996-07-08
JP33717096A JP3331538B2 (ja) 1996-12-17 1996-12-17 リング状接合材用急冷凝固箔並びにその製造方法、製造装置及び製造用ノズル
JP8/337170 1996-12-17

Publications (1)

Publication Number Publication Date
WO1998000252A1 true WO1998000252A1 (fr) 1998-01-08

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PCT/JP1997/002263 WO1998000252A1 (fr) 1996-06-28 1997-06-30 Feuille solidifiee rapidement pour materiau de soudage en forme de bague, son procede et appareil de production, et ajutage pour sa production

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WO (1) WO1998000252A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109262130A (zh) * 2018-08-21 2019-01-25 长沙格力暖通制冷设备有限公司 一种焊环结构、分液头组件焊接工艺及分液头组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335004B2 (fr) * 1976-07-22 1978-09-25
JPS5485156A (en) * 1977-12-20 1979-07-06 Matsushita Electric Ind Co Ltd Solder
JPS626413B2 (fr) * 1978-12-22 1987-02-10 Gen Electric
JPH04253551A (ja) * 1991-02-01 1992-09-09 Nippon Steel Corp 金属薄帯の連続鋳造装置用冷却ドラム
JPH05123890A (ja) * 1991-07-25 1993-05-21 Nippon Steel Corp 急冷凝固箔よりなる円錐台リング用ろう材及びその製造法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335004B2 (fr) * 1976-07-22 1978-09-25
JPS5485156A (en) * 1977-12-20 1979-07-06 Matsushita Electric Ind Co Ltd Solder
JPS626413B2 (fr) * 1978-12-22 1987-02-10 Gen Electric
JPH04253551A (ja) * 1991-02-01 1992-09-09 Nippon Steel Corp 金属薄帯の連続鋳造装置用冷却ドラム
JPH05123890A (ja) * 1991-07-25 1993-05-21 Nippon Steel Corp 急冷凝固箔よりなる円錐台リング用ろう材及びその製造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109262130A (zh) * 2018-08-21 2019-01-25 长沙格力暖通制冷设备有限公司 一种焊环结构、分液头组件焊接工艺及分液头组件

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